/* ═══════════════════════════════════════════════════
   LENTO APRENDE — Design System
   Palette: Black + Cyan | Icons: Font Awesome 6
═══════════════════════════════════════════════════ */

/* ── Variables ── */
:root {
    --accent: #00d4ff;
    --accent-soft: #00b8e0;
    --accent-dim: rgba(0, 212, 255, 0.12);
    --accent-border: rgba(0, 212, 255, 0.3);
    --bg-base: #080c10;
    --bg-surface: #0f1419;
    --bg-card: #151c24;
    --bg-card-hover: #1a2330;
    --bg-elevated: #1e2836;
    --text-primary: #f0f4f8;
    --text-secondary: #8b9ab0;
    --text-muted: #4a5568;
    --border: rgba(255, 255, 255, 0.07);
    --border-accent: rgba(0, 212, 255, 0.25);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 4px 20px rgba(0, 212, 255, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --font: 'Inter', system-ui, sans-serif;
    --nav-h: 68px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
    border: none;
    font-family: var(--font);
}

img {
    max-width: 100%;
    display: block;
}

input,
select {
    font-family: var(--font);
}

.hidden {
    display: none !important;
}

.w-full {
    width: 100%;
}

/* ── Container ── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ═══ BUTTONS ═══ */
.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-soft));
    color: #080c10;
    font-weight: 700;
    border-radius: 50px;
    padding: 10px 22px;
    font-size: 0.9rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px rgba(0, 212, 255, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-weight: 600;
    border-radius: 50px;
    padding: 10px 22px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent-border);
    color: var(--accent);
    background: var(--bg-card-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    border-radius: 50px;
    padding: 10px 22px;
    font-size: 0.9rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.btn-ghost:hover {
    border-color: var(--accent-border);
    color: var(--accent);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    font-weight: 600;
    border-radius: 50px;
    padding: 12px 28px;
    border: 1.5px solid var(--accent-border);
    transition: var(--transition);
}

.btn-outline:hover {
    background: var(--accent-dim);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 7px 16px;
    font-size: 0.82rem;
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1rem;
}

/* ═══ NAVBAR ═══ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-h);
    background: rgba(8, 12, 16, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: box-shadow var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.6);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-brand {
    flex-shrink: 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    font-size: 1.4rem;
    filter: drop-shadow(0 0 8px var(--accent));
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-accent {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-link.active {
    color: var(--accent);
    background: var(--accent-dim);
    font-weight: 600;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
}

.btn-icon {
    font-style: normal;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    padding: 8px;
    border-radius: 8px;
    transition: var(--transition);
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger:hover span {
    background: var(--accent);
}

/* Mobile Nav */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1098;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    z-index: 1099;
    padding: 24px;
    flex-direction: column;
    gap: 8px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-nav.open {
    transform: translateX(0);
}

.mobile-nav.open,
.mobile-nav-overlay.open {
    display: flex;
}

.mobile-nav-close {
    align-self: flex-end;
    background: var(--bg-card);
    color: var(--text-secondary);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 1rem;
    margin-bottom: 16px;
    transition: var(--transition);
}

.mobile-nav-close:hover {
    color: var(--accent);
}

.mobile-nav-link {
    display: block;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-weight: 500;
    transition: var(--transition);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--accent);
    background: var(--accent-dim);
}

.mobile-nav-actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ═══ PAGES ═══ */
.page {
    padding-top: var(--nav-h);
    min-height: 100vh;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-hero-mini {
    background: linear-gradient(180deg, var(--bg-surface) 0%, var(--bg-base) 100%);
    border-bottom: 1px solid var(--border);
    padding: 48px 0 32px;
}

.page-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 8px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* ═══ SECTION ═══ */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--bg-surface);
}

.section-header {
    text-align: center;
    margin-bottom: 52px;
}

.section-tag {
    display: inline-block;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 50px;
    border: 1px solid var(--accent-border);
    margin-bottom: 16px;
    letter-spacing: 0.3px;
}

.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.section-cta {
    text-align: center;
    margin-top: 48px;
}

/* ═══ HERO ═══ */
.hero {
    min-height: calc(100vh - var(--nav-h));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 24px;
    max-width: 1280px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.hero-centered {
    text-align: center;
    flex-direction: column;
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    z-index: 0;
    background-image:
        linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}

.hero-bg-orbs {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.18;
    animation: orb-float 8s ease-in-out infinite;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: -100px;
    right: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 300px;
    height: 300px;
    background: #0044ff;
    bottom: 0;
    left: -80px;
    animation-delay: -3s;
}

.orb-3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 60%;
    right: 30%;
    animation-delay: -5s;
}

@keyframes orb-float {

    0%,
    100% {
        transform: translateY(0) scale(1);
    }

    50% {
        transform: translateY(-30px) scale(1.05);
    }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 50px;
    border: 1px solid var(--accent-border);
    margin-bottom: 28px;
}

.tag-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.5;
        transform: scale(1.5);
    }
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.text-accent {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 0;
}

/* ═══ EMPTY STATE ═══ */
.empty-state {
    text-align: center;
    padding: 80px 24px;
    max-width: 480px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.empty-icon {
    font-size: 3rem;
    color: var(--accent-border);
    margin-bottom: 8px;
}

.empty-state h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.empty-state p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ═══ DASHBOARD WELCOME ═══ */
.dashboard-welcome {
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 32px;
}

.welcome-icon-wrap {
    font-size: 3rem;
    color: var(--text-muted);
    flex-shrink: 0;
    line-height: 1;
}

.welcome-text h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.welcome-text p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 18px;
    max-width: 540px;
}

.welcome-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* ═══ COURSE CARDS ═══ */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}

.course-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.course-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
}

.course-thumb {
    height: 160px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
}

.course-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 50px;
    letter-spacing: 0.3px;
}

.badge-new {
    background: var(--accent);
    color: #080c10;
}

.badge-popular {
    background: #ff6b35;
    color: #fff;
}

.badge-reco {
    background: #7c3aed;
    color: #fff;
}

.course-body {
    padding: 18px;
}

.course-level {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.course-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}

.course-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
}

.course-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.course-footer {
    border-top: 1px solid var(--border);
    padding-top: 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-rating {
    font-size: 0.82rem;
    font-weight: 600;
}

.btn-enroll {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid var(--accent-border);
    border-radius: 50px;
    padding: 6px 16px;
    font-size: 0.78rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-enroll:hover {
    background: var(--accent);
    color: #080c10;
}

/* ═══ BENEFITS ═══ */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.benefit-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.benefit-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-3px);
    box-shadow: var(--shadow-accent);
}

.benefit-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 1.25rem;
    color: var(--accent);
}

.benefit-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.benefit-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Quick Access */
.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.qa-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    text-align: left;
    transition: var(--transition);
}

.qa-card:hover {
    border-color: var(--accent-border);
    background: var(--bg-card-hover);
    transform: translateX(4px);
    box-shadow: var(--shadow-accent);
}

.qa-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent);
    flex-shrink: 0;
}

.qa-content h3 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 3px;
}

.qa-content p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.qa-arrow {
    margin-left: auto;
    color: var(--accent);
    font-size: 0.9rem;
}

/* ═══ CURSOS PAGE ═══ */
.search-filter-bar {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 32px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 16px;
    font-size: 1rem;
}

.search-input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 14px 20px 14px 44px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-input::placeholder {
    color: var(--text-muted);
}

.search-input:focus {
    outline: none;
    border-color: var(--accent-border);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.filter-pills {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-pill {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: 50px;
    padding: 8px 18px;
    font-size: 0.82rem;
    font-weight: 500;
    transition: var(--transition);
}

.filter-pill:hover {
    border-color: var(--accent-border);
    color: var(--accent);
}

.filter-pill.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 600;
}

.courses-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 32px;
}

.filter-sidebar {
    align-self: start;
    position: sticky;
    top: calc(var(--nav-h) + 24px);
}

.filter-group {
    margin-bottom: 24px;
}

.filter-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.filter-check {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 6px 0;
    cursor: pointer;
    transition: var(--transition);
}

.filter-check:hover {
    color: var(--text-primary);
}

.filter-check input {
    accent-color: var(--accent);
}

.results-header {
    margin-bottom: 20px;
}

.results-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pagination {
    display: flex;
    gap: 8px;
    margin-top: 40px;
    justify-content: center;
}

.page-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.page-btn:hover {
    border-color: var(--accent-border);
    color: var(--accent);
}

.page-btn.active {
    background: var(--accent);
    color: #080c10;
    border-color: var(--accent);
}

/* ═══ MIS CURSOS PAGE ═══ */
.tab-bar {
    display: flex;
    gap: 4px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
}

.tab-btn {
    background: none;
    color: var(--text-secondary);
    padding: 12px 20px;
    font-size: 0.88rem;
    font-weight: 500;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    border: 1px solid transparent;
    border-bottom: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    bottom: -1px;
}

.tab-btn:hover {
    color: var(--accent);
}

.tab-btn.active {
    color: var(--accent);
    background: var(--bg-card);
    border-color: var(--border);
    border-bottom-color: var(--bg-card);
    font-weight: 600;
}

.tab-badge {
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 50px;
    border: 1px solid var(--accent-border);
}

.reminder-banner {
    display: flex;
    align-items: center;
    gap: 16px;
    background: rgba(255, 160, 0, 0.08);
    border: 1px solid rgba(255, 160, 0, 0.25);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 28px;
    font-size: 0.88rem;
}

.reminder-icon {
    font-size: 1.3rem;
    flex-shrink: 0;
}

.my-courses-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.my-course-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.my-course-card:hover {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
}

.my-course-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: var(--bg-elevated);
}

.my-course-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.my-course-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.my-course-status {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 50px;
    letter-spacing: 0.3px;
}

.status-progress {
    background: var(--accent-dim);
    color: var(--accent);
    border: 1px solid var(--accent-border);
}

.status-done {
    background: rgba(0, 200, 100, 0.1);
    color: #00c864;
    border: 1px solid rgba(0, 200, 100, 0.3);
}

.status-pending {
    background: rgba(255, 160, 0, 0.1);
    color: #ffa000;
    border: 1px solid rgba(255, 160, 0, 0.3);
}

.my-course-progress {
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-bar {
    flex: 1;
    height: 5px;
    background: var(--bg-elevated);
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 10px;
    transition: width 0.8s ease;
}

.progress-pct {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--accent);
    min-width: 36px;
    text-align: right;
}

.my-course-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-end;
}

.btn-continue {
    background: var(--accent);
    color: #080c10;
    font-weight: 700;
    border-radius: 50px;
    padding: 8px 20px;
    font-size: 0.82rem;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-continue:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

/* ═══ AVANCES PAGE ═══ */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 36px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
}

.stat-card-icon {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 900;
    color: var(--accent);
    margin-bottom: 4px;
}

.stat-card-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.avances-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 24px;
}

.avances-main,
.avances-side {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.panel-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.progress-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.progress-item {
    margin-bottom: 12px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.progress-name {
    font-size: 0.9rem;
    font-weight: 600;
}

.progress-num {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
}

.progress-bar-lg {
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill-lg {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-soft));
    border-radius: 10px;
}

.progress-sub {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* Activity Chart */
.activity-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 120px;
    margin-bottom: 12px;
}

.chart-bar {
    flex: 1;
    border-radius: 4px 4px 0 0;
    background: var(--bg-elevated);
    position: relative;
    cursor: pointer;
    transition: var(--transition);
}

.chart-bar.current {
    background: var(--accent);
}

.chart-bar:hover {
    opacity: 0.75;
}

.chart-day {
    position: absolute;
    bottom: -22px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.65rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.chart-legend {
    display: flex;
    gap: 16px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
}

.legend-dot.dim {
    background: var(--bg-elevated);
}

/* Achievements */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.achievement {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px;
    text-align: center;
    transition: var(--transition);
    cursor: default;
}

.achievement:hover {
    border-color: rgba(255, 200, 0, 0.4);
    transform: scale(1.05);
}

.achievement.locked {
    opacity: 0.35;
    filter: grayscale(1);
}

.ach-icon {
    font-size: 1.6rem;
    margin-bottom: 6px;
}

.ach-name {
    font-size: 0.68rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Goals */
.goals-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.goal-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
}

.goal-icon {
    font-size: 1.2rem;
}

.goal-text {
    flex: 1;
    font-size: 0.85rem;
    font-weight: 500;
}

.goal-bar-wrap {
    width: 60px;
}

.goal-bar-sm {
    height: 4px;
    background: var(--bg-card);
    border-radius: 10px;
}

.goal-bar-sm div {
    height: 100%;
    background: var(--accent);
    border-radius: 10px;
}

.goal-pct {
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 700;
}

/* ═══ DASHBOARD / RESUMEN ═══ */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 20px;
}

.widget {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
}

.widget:hover {
    border-color: var(--accent-border);
}

.widget-title {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.widget-welcome {
    grid-column: span 12;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
    border-color: var(--accent-border);
}

.widget-welcome-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.welcome-avatar {
    font-size: 2.5rem;
}

.widget-welcome h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.widget-welcome p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.widget-stats {
    grid-column: span 4;
}

.w-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.w-stat {
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    padding: 14px;
    text-align: center;
}

.w-stat-val {
    display: block;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent);
}

.w-stat-lbl {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.widget-activity {
    grid-column: span 5;
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.activity-item:last-child {
    border: none;
}

.activity-icon {
    font-size: 1.1rem;
    width: 32px;
    height: 32px;
    background: var(--bg-elevated);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-text {
    flex: 1;
    font-size: 0.82rem;
}

.activity-text strong {
    display: block;
    font-weight: 600;
}

.activity-time {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.widget-courses {
    grid-column: span 3;
}

.active-courses-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ac-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ac-icon {
    font-size: 1.2rem;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-elevated);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ac-info {
    flex: 1;
    overflow: hidden;
}

.ac-name {
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ac-bar {
    height: 3px;
    background: var(--bg-elevated);
    border-radius: 10px;
    margin-top: 5px;
}

.ac-bar div {
    height: 100%;
    background: var(--accent);
    border-radius: 10px;
}

.ac-pct {
    font-size: 0.7rem;
    color: var(--accent);
    font-weight: 700;
}

.widget-tasks {
    grid-column: span 4;
}

.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
}

.task-check {
    width: 16px;
    height: 16px;
    border: 1.5px solid var(--accent);
    border-radius: 4px;
    flex-shrink: 0;
    cursor: pointer;
    transition: var(--transition);
}

.task-check.done {
    background: var(--accent);
}

.task-text {
    flex: 1;
}

.task-text.done-text {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-due {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.widget-notifications {
    grid-column: span 4;
}

.notifications-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.notif-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    font-size: 0.8rem;
}

.notif-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
    margin-top: 5px;
}

.notif-text {
    flex: 1;
    color: var(--text-secondary);
}

.notif-text strong {
    color: var(--text-primary);
}

.widget-recommendations {
    grid-column: span 4;
}

.reco-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.reco-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: var(--bg-elevated);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.reco-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-border);
}

.reco-icon {
    font-size: 1.3rem;
}

.reco-title {
    font-size: 0.8rem;
    font-weight: 600;
}

.reco-meta {
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.widget-goals {
    grid-column: span 12;
}

.goals-widget-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
}

.goal-w-item {
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.goal-w-icon {
    font-size: 1.4rem;
}

.goal-w-title {
    font-size: 0.88rem;
    font-weight: 600;
}

.goal-w-bar {
    height: 5px;
    background: var(--bg-card);
    border-radius: 10px;
}

.goal-w-bar div {
    height: 100%;
    background: var(--accent);
    border-radius: 10px;
}

.goal-w-pct {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 700;
}

/* ═══ FOOTER ═══ */
.footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 12px 0 20px;
    max-width: 240px;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-btn {
    width: 36px;
    height: 36px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    transition: var(--transition);
}

.social-btn:hover {
    border-color: var(--accent-border);
    color: var(--accent);
}

.footer-col h5 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.footer-col a {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        display: none;
    }

    .hero-subtitle {
        max-width: 100%;
        margin: 0 auto 36px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .courses-layout {
        grid-template-columns: 1fr;
    }

    .filter-sidebar {
        position: static;
    }

    .filter-sidebar {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .avances-grid {
        grid-template-columns: 1fr;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .dashboard-grid {
        grid-template-columns: repeat(6, 1fr);
    }

    .widget-welcome {
        grid-column: span 6;
    }

    .widget-stats {
        grid-column: span 3;
    }

    .widget-activity {
        grid-column: span 3;
    }

    .widget-courses {
        grid-column: span 3;
    }

    .widget-tasks {
        grid-column: span 3;
    }

    .widget-notifications {
        grid-column: span 3;
    }

    .widget-recommendations {
        grid-column: span 3;
    }

    .widget-goals {
        grid-column: span 6;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .btn-secondary.btn-sm:not(.hamburger ~ *) {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .nav-actions .btn-secondary {
        display: none;
    }

    .nav-actions .btn-primary {
        display: none;
    }

    .hero {
        padding: 40px 20px;
        min-height: auto;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section {
        padding: 48px 0;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    .my-course-card {
        grid-template-columns: auto 1fr;
    }

    .my-course-actions {
        grid-column: span 2;
        flex-direction: row;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .achievements-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .filter-sidebar {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .widget-welcome,
    .widget-stats,
    .widget-activity,
    .widget-courses,
    .widget-tasks,
    .widget-notifications,
    .widget-recommendations,
    .widget-goals {
        grid-column: span 1;
    }

    .widget-welcome-content {
        flex-direction: column;
    }

    .tab-bar {
        overflow-x: auto;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .hero-stats {
        gap: 16px;
    }

    .stat-number {
        font-size: 1.1rem;
    }

    .benefits-grid {
        grid-template-columns: 1fr;
    }

    .quick-access-grid {
        grid-template-columns: 1fr;
    }

    .stats-row {
        grid-template-columns: 1fr 1fr;
    }

    .achievements-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .reminder-banner {
        flex-direction: column;
        text-align: center;
    }
}

/* ═══════════════════════════════════════════════════
   AUTH MODAL
═══════════════════════════════════════════════════ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.2s ease;
}

.auth-modal {
    background: var(--bg-surface);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    width: 100%;
    max-width: 420px;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 212, 255, 0.08);
    animation: slideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border-radius: 8px;
    padding: 7px 10px;
    font-size: 1rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--accent);
    border-color: var(--accent-border);
}

.modal-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 24px;
    justify-content: center;
}

.modal-brand .logo-icon {
    font-size: 1.3rem;
    filter: drop-shadow(0 0 6px var(--accent));
}

.modal-brand .logo-text {
    font-size: 1.15rem;
    font-weight: 800;
}

/* Auth Tabs */
.auth-tabs {
    display: flex;
    background: var(--bg-card);
    border-radius: 50px;
    padding: 4px;
    margin-bottom: 28px;
    border: 1px solid var(--border);
}

.auth-tab {
    flex: 1;
    padding: 9px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    transition: var(--transition);
}

.auth-tab.active {
    background: var(--accent);
    color: #080c10;
    font-weight: 700;
    box-shadow: 0 2px 12px rgba(0, 212, 255, 0.3);
}

/* Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.2px;
}

.input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 0.85rem;
    pointer-events: none;
}

.form-input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 40px 12px 40px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-elevated);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.input-toggle {
    position: absolute;
    right: 12px;
    background: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 4px 6px;
    border-radius: 6px;
    transition: var(--transition);
}

.input-toggle:hover {
    color: var(--accent);
}

/* Messages */
.auth-msg {
    font-size: 0.82rem;
    font-weight: 500;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    line-height: 1.5;
}

.auth-error {
    background: rgba(255, 80, 80, 0.1);
    border: 1px solid rgba(255, 80, 80, 0.3);
    color: #ff6b6b;
}

.auth-success {
    background: rgba(0, 200, 100, 0.1);
    border: 1px solid rgba(0, 200, 100, 0.3);
    color: #00c864;
}

/* Submit button */
.auth-submit {
    width: 100%;
    justify-content: center;
    gap: 8px;
    padding: 13px 20px;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    margin-top: 4px;
}

.auth-submit:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    transform: none !important;
}

/* Switch link */
.auth-switch {
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Social login */
.auth-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0 14px;
    color: rgba(255,255,255,0.35);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(255,255,255,0.08);
}
.auth-social-btns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 16px;
}
.btn-social {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 11px 16px;
    border-radius: 12px;
    font-size: 0.88rem;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.2s ease;
    border: 1.5px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.04);
    color: rgba(255,255,255,0.85);
    letter-spacing: 0.01em;
}
.btn-social svg { flex-shrink: 0; }
.btn-social i { font-size: 1rem; flex-shrink: 0; }
.btn-social:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.3);
}
.btn-social:active { transform: translateY(0); }
.btn-google:hover { border-color: rgba(66,133,244,0.5); box-shadow: 0 4px 16px rgba(66,133,244,0.15); }
.btn-facebook i { color: #1877F2; }
.btn-facebook:hover { border-color: rgba(24,119,242,0.5); box-shadow: 0 4px 16px rgba(24,119,242,0.15); }

/* Forgot password */
.forgot-link-row {
    display: flex;
    justify-content: flex-end;
    margin-top: -4px;
    margin-bottom: 4px;
}
.forgot-btn {
    font-size: 0.8rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}
.forgot-btn:hover { opacity: 1; }

.forgot-header {
    text-align: center;
    margin-bottom: 24px;
}
.forgot-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.12);
    border: 1px solid rgba(0, 212, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
    font-size: 1.4rem;
    color: var(--accent);
}
.forgot-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0 0 8px;
}
.forgot-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}
.auth-success {
    background: rgba(34, 197, 94, 0.12);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #4ade80;
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.link-btn {
    background: none;
    color: var(--accent);
    font-size: inherit;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: var(--transition);
}

.link-btn:hover {
    opacity: 0.8;
}

/* ═══════════════════════════════════════════════════
   USER DROPDOWN (Navbar)
═══════════════════════════════════════════════════ */
.user-dropdown {
    position: relative;
}

.user-avatar-btn {
    display: flex;
    align-items: center;
    gap: 7px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 5px 12px 5px 5px;
    transition: var(--transition);
    cursor: pointer;
}

.user-avatar-btn:hover {
    border-color: var(--accent-border);
}

.user-initials {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #0044ff);
    color: #080c10;
    font-size: 0.72rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: 0.5px;
}

.user-initials.sm {
    width: 26px;
    height: 26px;
    font-size: 0.65rem;
}

.chevron-icon {
    font-size: 0.65rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.user-avatar-btn:hover .chevron-icon {
    color: var(--accent);
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 220px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    z-index: 500;
    overflow: hidden;
    animation: slideUp 0.2s ease;
}

.dropdown-user-info {
    padding: 14px 16px 10px;
    border-bottom: 1px solid var(--border);
}

.dropdown-user-name {
    font-size: 0.88rem;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dropdown-user-email {
    font-size: 0.74rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-top: 2px;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 11px 16px;
    width: 100%;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: none;
    border-radius: 0;
    transition: var(--transition);
}

.dropdown-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.dropdown-item i {
    width: 14px;
    color: var(--accent);
}

.dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

.dropdown-logout:hover {
    color: #ff6b6b;
    background: rgba(255, 80, 80, 0.06);
}

.dropdown-logout i {
    color: #ff6b6b;
}

/* ═══════════════════════════════════════════════════
   MOBILE USER INFO (inside mobile-nav)
═══════════════════════════════════════════════════ */
.mobile-user-info {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.mobile-user-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    font-size: 0.88rem;
    font-weight: 600;
}

/* ═══════════════════════════════════════════════════
   AUTH REQUIRED STATE (protected pages)
═══════════════════════════════════════════════════ */
.auth-required-state {
    text-align: center;
    padding: 80px 24px;
    max-width: 440px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.auth-required-state .empty-icon {
    color: var(--text-muted);
}

.auth-required-state h3 {
    font-size: 1.2rem;
    font-weight: 700;
}

.auth-required-state p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ─── Auth Modal responsive ─── */
@media (max-width: 480px) {
    .auth-modal {
        padding: 28px 20px;
    }
}

/* ═══════════════════════════════════════════════════
   PROFILE PAGE
═══════════════════════════════════════════════════ */

/* Layout: photo col + form col side by side */
.profile-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 32px;
    align-items: start;
}

/* ─── Photo column ─── */
.profile-photo-col {
    display: flex;
    justify-content: center;
}

.profile-photo-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

.profile-photo-circle {
    position: relative;
    width: 130px;
    height: 130px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #0044ff);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 3px solid var(--accent-border);
    box-shadow: 0 0 24px rgba(0, 212, 255, 0.18);
    cursor: pointer;
}

.profile-initials-lg {
    font-size: 2.5rem;
    font-weight: 800;
    color: #080c10;
    letter-spacing: -1px;
    user-select: none;
}

.profile-photo-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.profile-photo-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    opacity: 0;
    transition: opacity 0.2s ease;
    border-radius: 50%;
    cursor: pointer;
    color: #fff;
    font-size: 1.4rem;
}

.profile-photo-circle:hover .profile-photo-overlay {
    opacity: 1;
}

.profile-photo-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
    max-width: 160px;
}

/* ─── Form column ─── */
.profile-form-col {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ─── Panel card ─── */
.panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
}

.panel-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.panel-title i {
    color: var(--accent);
}

/* Profile form 2-column grid */
.profile-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
    margin-bottom: 20px;
}

.profile-form-full {
    grid-column: 1 / -1;
}

/* Textarea */
.form-textarea {
    resize: vertical;
    min-height: 80px;
    padding: 12px 14px 12px 40px;
    line-height: 1.6;
}

/* Disabled input */
.form-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--bg-elevated);
}

/* Profile actions */
.profile-form-actions {
    display: flex;
    gap: 12px;
    margin-top: 4px;
}

/* Optional badge */
.field-optional {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 400;
    margin-left: 4px;
}

/* ─── Security row ─── */
.security-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 0 16px;
}

.security-label {
    font-size: 0.9rem;
    font-weight: 600;
}

.security-sub {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.change-pass-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ─── Profile responsive ─── */
@media (max-width: 860px) {
    .profile-layout {
        grid-template-columns: 1fr;
    }

    .profile-photo-col {
        justify-content: flex-start;
    }

    .profile-photo-wrap {
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 20px;
    }

    .profile-photo-hint {
        max-width: 220px;
    }
}

@media (max-width: 600px) {
    .profile-form-grid {
        grid-template-columns: 1fr;
    }

    .profile-photo-wrap {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-photo-hint {
        max-width: 180px;
    }
}

/* ═══════════════════════════════════════════════════
   COURSE CATALOG CARDS
═══════════════════════════════════════════════════ */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.course-card-full {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.course-card-full:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
}

.course-card-banner {
    height: 130px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    position: relative;
}

.course-card-icon {
    font-size: 2.8rem;
    color: rgba(255, 255, 255, 0.9);
}

.course-level-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.course-body {
    padding: 20px;
}

.course-level {
    font-size: 0.72rem;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.course-title {
    font-size: 1.2rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.course-desc {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 14px;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}

.course-meta span {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.course-progress-mini {
    margin-bottom: 14px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.course-progress-bar-wrap {
    height: 6px;
    background: var(--bg-elevated);
    border-radius: 4px;
    overflow: hidden;
}

.course-progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.4s ease;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.course-rating {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.btn-enroll {
    background: var(--accent);
    color: #080c10;
    border: none;
    padding: 8px 18px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.btn-enroll:hover {
    opacity: 0.85;
    transform: scale(1.03);
}

/* ═══════════════════════════════════════════════════
   COURSE DETAIL PAGE
═══════════════════════════════════════════════════ */
.cd-back {
    padding: 20px;
}

.cd-banner {
    padding: 52px 0 40px;
}

.cd-banner-inner {
    display: grid;
    grid-template-columns: 90px 1fr auto;
    gap: 24px;
    align-items: start;
}

.cd-banner-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.2rem;
    color: rgba(255, 255, 255, 0.9);
}

.cd-level {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 14px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.cd-title {
    font-size: 2rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 4px;
}

.cd-subtitle {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 12px;
}

.cd-stats {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.cd-stats span {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.75);
    display: flex;
    align-items: center;
    gap: 6px;
}

.cd-banner-action {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
    min-width: 180px;
}

.cd-enrolled-badge {
    display: flex;
    align-items: center;
    gap: 7px;
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border: 1px solid #22c55e44;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
}

.cd-locked-badge {
    display: flex;
    align-items: center;
    gap: 7px;
    background: rgba(239, 68, 68, 0.12);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.cd-locked-msg {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 200px;
    line-height: 1.5;
}

.cd-progress-wrap {
    width: 100%;
}

.cd-progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 4px;
    overflow: hidden;
    width: 180px;
    margin-bottom: 4px;
}

.cd-progress-bar>div {
    height: 100%;
    background: #22c55e;
    border-radius: 4px;
    transition: width 0.4s;
}

.cd-progress-wrap span {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.65);
}

/* ─── Course Detail Sections ─── */
.cd-section {
    margin: 48px 0;
}

.cd-section-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.cd-section-title i {
    color: var(--accent);
}

.cd-objectives {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.cd-objectives li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 11px 14px;
}

.cd-objectives li i {
    color: var(--accent);
    margin-top: 2px;
    flex-shrink: 0;
}

/* ─── Duolingo-style path ─── */
.course-path {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
}

.path-row {
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    padding: 16px 0;
}

.path-row.path-right {
    flex-direction: row-reverse;
    padding-left: 40%;
}

.path-row.path-left {
    padding-right: 40%;
}

.path-connector {
    position: absolute;
    width: 4px;
    height: 32px;
    background: var(--border);
    border-radius: 4px;
    top: -16px;
    left: calc(50% - 2px);
    z-index: 0;
}

.week-node {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    border: 4px solid var(--node-color, var(--accent));
    background: var(--bg-card);
    color: var(--node-color, var(--accent));
    font-size: 1.5rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    flex-shrink: 0;
    z-index: 1;
    position: relative;
}

.week-node:hover {
    transform: scale(1.1);
    box-shadow: 0 0 24px color-mix(in srgb, var(--node-color, var(--accent)) 40%, transparent);
}

.week-node.node-done {
    background: var(--node-color, var(--accent));
    color: #080c10;
    box-shadow: 0 0 20px color-mix(in srgb, var(--node-color, var(--accent)) 35%, transparent);
}

.week-node.node-active {
    animation: nodePulse 2s infinite;
}

@keyframes nodePulse {

    0%,
    100% {
        box-shadow: 0 0 0 0 color-mix(in srgb, var(--node-color, var(--accent)) 50%, transparent);
    }

    50% {
        box-shadow: 0 0 0 10px transparent;
    }
}

.week-node .node-num {
    font-size: 1.3rem;
    font-weight: 900;
}

.path-info {
    flex: 1;
}

.path-week-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.path-week-title {
    font-size: 1rem;
    font-weight: 700;
    margin: 4px 0 2px;
}

.path-week-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.path-week-progress {
    display: flex;
    align-items: center;
    gap: 10px;
}

.path-prog-bar {
    flex: 1;
    max-width: 140px;
    height: 6px;
    background: var(--bg-elevated);
    border-radius: 4px;
    overflow: hidden;
}

.path-prog-bar>div {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.4s;
}

.path-week-progress span {
    font-size: 0.73rem;
    color: var(--text-muted);
}

/* ─── Recommendations ─── */
.cd-reco-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.cd-reco-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px;
}

.cd-reco-icon {
    font-size: 1.6rem;
    color: var(--accent);
    margin-bottom: 12px;
}

.cd-reco-card h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.cd-reco-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.cd-reco-card ul {
    padding-left: 16px;
}

.cd-reco-card li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    line-height: 1.5;
}

/* ═══════════════════════════════════════════════════
   WEEK VIEW PAGE
═══════════════════════════════════════════════════ */
.wv-back {
    padding: 20px 0 8px;
}

.wv-header {
    background: linear-gradient(135deg, color-mix(in srgb, var(--wk-color) 20%, #080c10), #080c10 80%);
    border-bottom: 2px solid color-mix(in srgb, var(--wk-color) 30%, transparent);
    padding: 36px 0 28px;
    margin-bottom: 0;
}

.wv-header-inner {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 20px;
}

.wv-week-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--wk-color);
    color: #080c10;
    font-size: 1.6rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 24px color-mix(in srgb, var(--wk-color) 40%, transparent);
}

.wv-week-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.wv-title {
    font-size: 1.6rem;
    font-weight: 900;
    color: #fff;
    margin: 4px 0 8px;
}

.wv-objective {
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    gap: 8px;
}

.wv-objective i {
    color: var(--wk-color);
}

.wv-progress-bar-outer {
    height: 8px;
    background: rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 6px;
}

.wv-progress-bar-fill {
    height: 100%;
    background: var(--wk-color);
    border-radius: 4px;
    transition: width 0.4s ease;
}

.wv-progress-label {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.55);
}

/* Week body */
.wv-body {
    display: flex;
    flex-direction: column;
    gap: 24px;
    padding-top: 32px;
    padding-bottom: 60px;
}

.wv-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.wv-card-title {
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.wv-card-title i {
    color: var(--wk-color, var(--accent));
}

/* Topics list */
.wv-topics-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.wv-topics-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    padding: 8px 12px;
    background: var(--bg-elevated);
    border-radius: 8px;
}

.wv-topics-list li i {
    color: var(--accent);
    font-size: 0.6rem;
}

/* Vocabulary table */
.vocab-table {
    display: flex;
    flex-direction: column;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.vocab-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    background: var(--bg-elevated);
    padding: 10px 16px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.vocab-header span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.vocab-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding: 11px 16px;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
}

.vocab-row:last-child {
    border-bottom: none;
}

.vocab-row:hover {
    background: var(--bg-elevated);
}

.vocab-en {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent);
}

.vocab-es {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

/* Structures */
.structures-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.structure-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--bg-elevated);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 0.9rem;
    font-style: italic;
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
}

.structure-item i {
    color: var(--accent);
    margin-top: 3px;
    flex-shrink: 0;
    font-style: normal;
}

/* Activities checklist */
.activities-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.activity-item input[type="checkbox"] {
    display: none;
}

.activity-item:hover {
    border-color: var(--accent-border);
    background: var(--bg-glass);
}

.activity-item.checked {
    background: rgba(0, 212, 255, 0.07);
    border-color: var(--accent-border);
}

.act-checkbox-icon {
    font-size: 1.2rem;
    color: var(--text-muted);
    flex-shrink: 0;
    transition: color 0.2s;
}

.activity-item.checked .act-checkbox-icon {
    color: var(--accent);
}

.act-text {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: color 0.2s, text-decoration 0.2s;
}

.activity-item.checked .act-text {
    color: var(--text-muted);
    text-decoration: line-through;
}

/* Goal banner */
.wv-goal {
    display: flex;
    align-items: center;
    gap: 20px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(0, 212, 255, 0.04));
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-lg);
    padding: 22px 24px;
}

.wv-goal-icon {
    font-size: 2rem;
    color: #f59e0b;
    flex-shrink: 0;
}

.wv-goal-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.wv-goal-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 4px;
}

/* Week navigation buttons */
.wv-nav-btns {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

/* ─── Week Complete Badge (toast) ─── */
.week-complete-badge {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 32px rgba(34, 197, 94, 0.4);
    z-index: 9999;
    animation: toastIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both,
        toastOut 0.4s 2.8s ease-in both;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
    .cd-banner-inner {
        grid-template-columns: 60px 1fr;
    }

    .cd-banner-action {
        grid-column: 1 / -1;
        align-items: flex-start;
    }

    .cd-objectives {
        grid-template-columns: 1fr;
    }

    .cd-reco-grid {
        grid-template-columns: 1fr;
    }

    .path-row.path-right {
        padding-left: 20%;
    }

    .path-row.path-left {
        padding-right: 20%;
    }
}

@media (max-width: 600px) {
    .courses-grid {
        grid-template-columns: 1fr;
    }

    .cd-title {
        font-size: 1.4rem;
    }

    .path-row.path-right,
    .path-row.path-left {
        padding: 12px 0;
        flex-direction: row;
    }

    .wv-title {
        font-size: 1.2rem;
    }

    .vocab-header,
    .vocab-row {
        grid-template-columns: 1fr 1fr;
        font-size: 0.8rem;
    }
}

/* ═══════════════════════════════════════════════════
   LOCKED NODES & LEGEND
═══════════════════════════════════════════════════ */
.week-node.node-locked {
    border-color: var(--border);
    background: var(--bg-elevated);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.6;
}

.week-node.node-locked:hover {
    transform: none;
    box-shadow: none;
}

.path-info-locked .path-week-title,
.path-info-locked .path-week-sub {
    opacity: 0.5;
}

.path-legend {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 7px;
}

.legend-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.legend-dot.done {
    background: #22c55e;
}

.legend-dot.active {
    background: var(--accent);
}

.legend-dot.locked {
    background: var(--border);
}

/* ─── Locked Toast ─── */
.locked-toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    background: #1e293b;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 12px 22px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    z-index: 9998;
    animation: toastIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both,
        toastOut 0.3s 2.7s ease-in both;
}

.locked-toast i {
    color: var(--text-muted);
}

/* ═══════════════════════════════════════════════════
   EXERCISE ENGINE
═══════════════════════════════════════════════════ */
.exercise-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--bg-primary);
}

/* ─── Header ─── */
.ex-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--bg-primary);
    z-index: 10;
}

.ex-close {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.9rem;
    flex-shrink: 0;
    transition: background 0.15s;
}

.ex-close:hover {
    background: var(--border);
}

.ex-progress-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 10px;
}

.ex-progress-bar {
    flex: 1;
    height: 10px;
    background: var(--bg-elevated);
    border-radius: 10px;
    overflow: hidden;
}

.ex-progress-fill {
    height: 100%;
    background: var(--ex-color, var(--accent));
    border-radius: 10px;
    transition: width 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ex-counter {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 600;
    flex-shrink: 0;
}

.ex-lives {
    display: flex;
    gap: 5px;
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ─── Body ─── */
.ex-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 24px;
}

.ex-question-card {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.ex-instruction {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--ex-color, var(--accent));
}

.ex-question {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.5;
}

/* ─── Multiple Choice Options ─── */
.ex-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 8px;
}

.ex-option {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 14px;
    padding: 14px 18px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.ex-option:hover:not(:disabled) {
    border-color: var(--ex-color, var(--accent));
    transform: translateY(-1px);
}

.ex-option.selected {
    border-color: var(--ex-color, var(--accent));
    background: rgba(0, 212, 255, 0.06);
}

.ex-option.correct {
    border-color: #22c55e !important;
    background: rgba(34, 197, 94, 0.12) !important;
    color: #22c55e;
}

.ex-option.wrong {
    border-color: #ef4444 !important;
    background: rgba(239, 68, 68, 0.1) !important;
    color: #ef4444;
}

.ex-option-letter {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-elevated);
    font-size: 0.72rem;
    font-weight: 800;
    color: var(--text-muted);
    flex-shrink: 0;
}

.ex-option.correct .ex-option-letter {
    background: #22c55e;
    color: #fff;
}

.ex-option.wrong .ex-option-letter {
    background: #ef4444;
    color: #fff;
}

/* ─── Word Order ─── */
.ex-answer-area {
    min-height: 60px;
    background: var(--bg-elevated);
    border: 2px dashed var(--border);
    border-radius: 14px;
    padding: 12px 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    transition: border-color 0.2s;
}

.ex-answer-area:not(:empty) {
    border-style: solid;
    border-color: var(--ex-color, var(--accent));
}

.ex-answer-placeholder {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.word-placed {
    background: var(--bg-card);
    border: 2px solid var(--ex-color, var(--accent));
    border-radius: 10px;
    padding: 8px 14px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: opacity 0.15s, background 0.15s;
}

.word-placed:hover {
    opacity: 0.75;
}

.word-placed.word-correct {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
    cursor: default;
}

.word-placed.word-wrong {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    cursor: default;
}

.ex-word-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-top: 4px;
}

.word-chip {
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 10px 18px;
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.15s, opacity 0.15s, transform 0.15s;
}

.word-chip:hover:not(:disabled) {
    border-color: var(--ex-color, var(--accent));
    transform: translateY(-2px);
}

.word-chip.used,
.word-chip:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* ─── Fill blank ─── */
.blank-slot {
    display: inline-block;
    min-width: 80px;
    border-bottom: 3px solid var(--ex-color, var(--accent));
    margin: 0 4px;
    color: var(--accent);
    font-weight: 800;
    text-align: center;
    transition: all 0.2s;
}

.blank-filled {
    background: rgba(34, 197, 94, 0.12);
    border-radius: 6px;
    border-color: #22c55e;
    color: #22c55e;
    padding: 2px 8px;
}

/* ─── Footer: feedback + buttons ─── */
.ex-footer {
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
    position: sticky;
    bottom: 0;
}

.ex-feedback {
    padding: 18px 24px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    animation: feedbackSlide 0.3s ease both;
}

@keyframes feedbackSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fb-correct {
    background: rgba(34, 197, 94, 0.07);
    border-top: 2px solid #22c55e44;
}

.fb-wrong {
    background: rgba(239, 68, 68, 0.07);
    border-top: 2px solid #ef444444;
}

.ex-feedback-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
}

.ex-feedback-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.ex-feedback-title {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 3px;
}

.fb-correct .ex-feedback-title {
    color: #22c55e;
}

.fb-wrong .ex-feedback-title {
    color: #ef4444;
}

.ex-feedback-explain {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.ex-action-wrap {
    display: flex;
    justify-content: flex-end;
    padding: 14px 24px 20px;
    gap: 12px;
}

.ex-check-btn {
    background: var(--ex-color, var(--accent));
    color: #080c10;
    border: none;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.2s, transform 0.2s;
    min-width: 180px;
    justify-content: center;
}

.ex-check-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.ex-check-btn:not(:disabled):hover {
    opacity: 0.85;
    transform: scale(1.02);
}

.ex-continue-btn {
    background: var(--ex-color, var(--accent));
    color: #080c10;
    border: none;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 180px;
    justify-content: center;
    transition: opacity 0.2s, transform 0.2s;
    animation: btnPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes btnPop {
    from {
        opacity: 0;
        transform: scale(0.8);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.ex-continue-btn:hover {
    opacity: 0.85;
    transform: scale(1.02);
}

/* ─── Exercise Complete Screen ─── */
.exercise-container.ex-complete {
    align-items: center;
    justify-content: center;
}

.ex-complete-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    text-align: center;
    max-width: 420px;
    padding: 40px 24px;
}

.ex-complete-trophy {
    font-size: 5rem;
    animation: trophyBounce 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes trophyBounce {
    from {
        opacity: 0;
        transform: scale(0.4) translateY(30px);
    }

    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.ex-complete-title {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text-primary);
}

.ex-complete-stars {
    font-size: 1.8rem;
    letter-spacing: 4px;
}

.ex-complete-msg {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.ex-score-wrap {
    display: flex;
    gap: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px 32px;
    margin: 8px 0;
    width: 100%;
    justify-content: center;
}

.ex-score-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.ex-score-val {
    font-size: 2rem;
    font-weight: 900;
    color: var(--text-primary);
}

.ex-score-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ex-complete-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.ex-complete-actions button {
    width: 100%;
    padding: 14px;
    font-size: 0.95rem;
}

/* ─── Exercise Responsive ─── */
@media (max-width: 600px) {
    .ex-options {
        grid-template-columns: 1fr;
    }

    .ex-header {
        padding: 16px;
    }

    .ex-body {
        padding: 24px 16px;
    }

    .ex-question {
        font-size: 1.1rem;
    }

    .ex-check-btn,
    .ex-continue-btn {
        min-width: 140px;
        padding: 12px 20px;
    }

    .ex-action-wrap {
        padding: 12px 16px 18px;
    }

    .ex-feedback {
        padding: 14px 16px 8px;
    }
}

/* ═══════════════════════════════════════════════════
   STUDY PHASE
═══════════════════════════════════════════════════ */
.study-phase {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background: var(--bg-primary);
}

.study-phase-label {
    flex: 1;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
}

/* Intro Banner */
.study-intro-banner {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 32px 24px;
    margin-bottom: 0;
}

.study-intro-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.3);
}

.study-week-label {
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.study-week-title {
    font-size: 1.4rem;
    font-weight: 900;
    color: #fff;
    margin: 4px 0;
}

.study-week-obj {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

/* Body */
.study-body {
    flex: 1;
}

.study-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
    padding: 36px 0;
}

/* Section header */
.study-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 6px;
}

.study-section-header h3 {
    font-size: 1rem;
    font-weight: 700;
}

.study-section-header i {
    font-size: 1.1rem;
}

.study-hint {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 18px;
}

/* ─── Flip Cards ─── */
.flip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 14px;
}

.flip-card {
    height: 100px;
    perspective: 800px;
    cursor: pointer;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    inset: 0;
    backface-visibility: hidden;
    border-radius: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px;
}

.flip-card-front {
    background: var(--bg-card);
    border: 2px solid var(--border);
}

.flip-card-back {
    transform: rotateY(180deg);
    border-radius: 14px;
}

.flip-en {
    font-size: 1rem;
    font-weight: 800;
    color: var(--ex-color, var(--accent));
}

.flip-tap {
    font-size: 0.65rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 3px;
}

.flip-es {
    font-size: 1rem;
    font-weight: 800;
    text-align: center;
}

.flip-card.flipped .flip-tap {
    display: none;
}

/* ─── Structures list ─── */
.study-structures-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.study-structure-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--ex-color, var(--accent));
    border-radius: 10px;
    padding: 14px 18px;
    font-size: 0.95rem;
    font-style: italic;
    color: var(--text-primary);
}

.study-say-icon {
    color: var(--ex-color, var(--accent));
    font-style: normal;
    flex-shrink: 0;
    opacity: 0.7;
}

/* ─── Topics chips ─── */
.study-topics-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.study-topic-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 7px 14px;
    font-size: 0.82rem;
    color: var(--text-secondary);
}

/* ─── Study Footer ─── */
.study-footer {
    position: sticky;
    bottom: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
    padding: 16px 24px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.study-footer-text {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ═══════════════════════════════════════════════════
   WORD MATCH GAME
═══════════════════════════════════════════════════ */
.wm-body {
    align-items: flex-start;
    padding-top: 24px;
}

.wm-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 16px 0 20px;
}

.wm-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.wm-col-header {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
}

.wm-item {
    width: 100%;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 13px 16px;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s, background 0.15s, transform 0.15s;
}

.wm-item:hover:not(:disabled) {
    border-color: var(--ex-color, var(--accent));
    transform: translateY(-1px);
}

.wm-item.wm-selected {
    border-color: var(--ex-color, var(--accent));
    background: rgba(0, 212, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.15);
}

.wm-item.wm-matched {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.12);
    color: #22c55e;
    cursor: default;
    opacity: 0.8;
}

.wm-item.wm-wrong {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    animation: shakePair 0.35s ease;
}

@keyframes shakePair {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-6px);
    }

    60% {
        transform: translateX(6px);
    }
}

/* Word match progress bar */
.wm-progress {
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 8px;
    overflow: hidden;
}

.wm-progress-fill {
    height: 100%;
    background: #22c55e;
    border-radius: 8px;
    transition: width 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.wm-progress-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 6px;
    text-align: right;
}

/* ─── Responsive ─── */
@media (max-width: 600px) {
    .flip-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }

    .flip-card {
        height: 84px;
    }

    .flip-en,
    .flip-es {
        font-size: 0.82rem;
    }

    .study-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .study-footer .ex-continue-btn {
        width: 100%;
        justify-content: center;
    }

    .wm-columns {
        gap: 10px;
    }

    .wm-item {
        font-size: 0.82rem;
        padding: 10px 12px;
    }
}

/* ═══════════════════════════════════════════════════
   ENHANCED STUDY PHASE STYLES - MODERN DESIGN
═══════════════════════════════════════════════════ */

/* Study Phase Container */
.study-phase {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--bg-base) 0%, var(--bg-surface) 100%);
    display: flex;
    flex-direction: column;
}

.study-body {
    flex: 1;
    overflow-y: auto;
}

.study-content {
    padding: 32px 0 80px;
}

/* Study Sections with Enhanced Design */
.study-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 32px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.study-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--ex-color, var(--accent)), transparent);
    opacity: 0.6;
}

.study-section:hover {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
    transform: translateY(-2px);
}

.study-section-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.study-section-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.study-section-header i {
    font-size: 1.3rem;
    padding: 8px;
    background: var(--accent-dim);
    border-radius: 8px;
    border: 1px solid var(--accent-border);
}

/* Study Lessons Enhanced */
.study-lesson {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 24px;
    position: relative;
    transition: var(--transition);
}

.study-lesson:hover {
    border-color: var(--accent-border);
    background: var(--bg-card);
}

.study-lesson-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
}

.study-lesson-title i {
    padding: 6px;
    background: var(--accent-dim);
    border-radius: 6px;
    font-size: 1rem;
}

.study-lesson-content {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

/* Study Examples with Modern Cards */
.study-examples {
    display: grid;
    gap: 16px;
    margin: 20px 0;
}

.study-example-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    border-left: 4px solid var(--accent);
    transition: var(--transition);
    position: relative;
}

.study-example-item:hover {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}

.study-example-en {
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 6px;
    font-family: 'Inter', sans-serif;
}

.study-example-es {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.study-example-context {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
    background: var(--bg-elevated);
    padding: 6px 12px;
    border-radius: 6px;
    display: inline-block;
}

/* Study Dialogues Enhanced */
.study-dialogue {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 16px 0;
    position: relative;
}

.study-dialogue::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--accent);
    border-radius: 2px 0 0 2px;
}

.study-dialogue-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.study-dialogue-title::before {
    content: '\f075';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.study-dialogue-lines {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.study-dialogue-line {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 8px 0;
}

.study-speaker {
    font-weight: 700;
    color: var(--accent);
    min-width: 24px;
    flex-shrink: 0;
    background: var(--accent-dim);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.study-text {
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 1.5;
}

/* Introduction Section Enhanced */
.study-intro-text {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.study-tips {
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    border-left: 4px solid var(--accent);
}

.study-tips-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.study-tips-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.study-tips-header i {
    padding: 6px;
    background: var(--accent-dim);
    border-radius: 6px;
    font-size: 0.9rem;
}

.study-tips ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.study-tips li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
    padding-left: 24px;
    position: relative;
    line-height: 1.6;
}

.study-tips li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 2px;
    color: var(--accent);
    font-size: 0.8rem;
}

/* Cultural Notes */
.study-cultural-notes {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.study-cultural-point {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--bg-elevated);
    border-radius: 10px;
    padding: 14px 16px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.study-cultural-point i {
    margin-top: 2px;
    flex-shrink: 0;
}

/* Pronunciation Guide */
.study-pronunciation {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.study-pronunciation-item {
    background: var(--bg-elevated);
    border-radius: 8px;
    padding: 12px 16px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--text-primary);
    border-left: 3px solid var(--accent);
}

/* Study Checklist */
.study-checklist {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.study-checklist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.study-checklist-item:hover {
    border-color: var(--accent-border);
    background: var(--bg-card-hover);
}

.study-checklist-item.checked {
    background: rgba(0, 212, 255, 0.08);
    border-color: var(--accent-border);
    color: var(--text-primary);
}

.study-check-icon {
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: color 0.2s ease;
}

.study-checklist-item.checked .study-check-icon {
    color: var(--accent);
}

/* Enhanced flip cards */
.flip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.flip-card {
    height: 120px;
    perspective: 1000px;
    cursor: pointer;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.flip-card-front {
    background: var(--bg-card);
    border: 2px solid var(--border);
}

.flip-card-back {
    transform: rotateY(180deg);
    color: #080c10;
}

.flip-en {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.flip-es {
    font-size: 0.95rem;
    font-weight: 600;
}

.flip-tap {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: auto;
}

/* Enhanced structures list */
.study-structures-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 16px;
}

.study-structure-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-elevated);
    border-radius: 10px;
    padding: 14px 18px;
    border-left: 3px solid var(--accent);
    transition: background 0.2s ease;
}

.study-structure-item:hover {
    background: var(--bg-card-hover);
}

.study-str-en {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    font-style: italic;
}

.study-say-icon {
    color: var(--accent);
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.study-say-icon:hover {
    transform: scale(1.2);
}

/* Enhanced topics grid */
.study-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.study-topic-chip {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.study-topic-chip:hover {
    border-color: var(--accent-border);
    background: var(--bg-card-hover);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .flip-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }
    
    .flip-card {
        height: 100px;
    }
    
    .study-topics-grid {
        grid-template-columns: 1fr;
    }
    
    .study-dialogue-line {
        flex-direction: column;
        gap: 4px;
    }
    
    .study-cultural-point {
        flex-direction: column;
        gap: 8px;
    }
}

/* ═══════════════════════════════════════════════════
   FLOATING ACTION BUTTON (FAB)
═══════════════════════════════════════════════════ */

.study-fab {
    position: fixed;
    top: 120px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ex-color, var(--accent)), var(--accent-soft));
    color: #080c10;
    border: none;
    cursor: pointer;
    box-shadow: 0 6px 24px rgba(0, 212, 255, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    overflow: hidden;
}

.study-fab:hover {
    width: 200px;
    border-radius: 28px;
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.4);
}

.study-fab-text {
    position: absolute;
    left: 60px;
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.3s ease 0.1s;
}

.study-fab:hover .study-fab-text {
    opacity: 1;
}

.study-fab.has-notification {
    animation: pulse 2s infinite;
}

.study-fab.has-notification::after {
    content: '';
    position: absolute;
    top: -2px;
    right: -2px;
    width: 12px;
    height: 12px;
    background: #ef4444;
    border-radius: 50%;
    border: 2px solid #080c10;
}

@media (max-width: 768px) {
    .study-fab {
        width: 48px;
        height: 48px;
        right: 16px;
        top: 100px;
    }
    
    .study-fab:hover {
        width: 160px;
        border-radius: 24px;
    }
    
    .study-fab-text {
        left: 50px;
        font-size: 0.8rem;
    }
}
/* Study Footer Actions */
.study-footer-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

/* Exercise Action Wrap Enhanced */
.ex-action-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 24px;
}

.ex-action-wrap .btn-ghost {
    font-size: 0.8rem;
    padding: 6px 16px;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.ex-action-wrap .btn-ghost:hover {
    opacity: 1;
}

/* Responsive adjustments for action buttons */
@media (max-width: 480px) {
    .study-footer-actions {
        width: 100%;
    }
    
    .ex-continue-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .ex-action-wrap .btn-ghost {
        width: 100%;
        max-width: 200px;
    }
}
/* Cultural Notes Enhanced */
.study-cultural-notes {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.study-cultural-point {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    transition: var(--transition);
}

.study-cultural-point:hover {
    border-color: var(--accent-border);
    background: var(--bg-card);
}

.study-cultural-point i {
    margin-top: 2px;
    flex-shrink: 0;
    padding: 6px;
    background: var(--accent-dim);
    border-radius: 6px;
    font-size: 0.9rem;
}

/* Pronunciation Guide Enhanced */
.study-pronunciation {
    display: grid;
    gap: 12px;
}

.study-pronunciation-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    border-left: 4px solid var(--accent);
    transition: var(--transition);
    position: relative;
}

.study-pronunciation-item:hover {
    border-color: var(--accent-border);
    background: var(--bg-card);
}

.study-pronunciation-item::before {
    content: '\f028';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 16px;
    top: 16px;
    color: var(--accent);
    font-size: 0.8rem;
}

/* Study Checklist Enhanced */
.study-checklist {
    display: grid;
    gap: 12px;
}

.study-checklist-item {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    color: var(--text-secondary);
    position: relative;
}

.study-checklist-item:hover {
    border-color: var(--accent-border);
    background: var(--bg-card);
    transform: translateX(4px);
}

.study-checklist-item.checked {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--text-primary);
}

.study-check-icon {
    font-size: 1.2rem;
    color: var(--text-muted);
    transition: all 0.3s ease;
}

.study-checklist-item.checked .study-check-icon {
    color: var(--accent);
    transform: scale(1.1);
}

/* Enhanced flip cards with modern design */
.flip-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.flip-card {
    height: 140px;
    perspective: 1000px;
    cursor: pointer;
}

.flip-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
}

.flip-card.flipped .flip-card-inner {
    transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.flip-card-front {
    background: var(--bg-card);
    border: 2px solid var(--border);
}

.flip-card:hover .flip-card-front {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
}

.flip-card-back {
    transform: rotateY(180deg);
    color: #080c10;
    box-shadow: var(--shadow-accent);
}

.flip-en {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    text-align: center;
}

.flip-es {
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
}

.flip-tap {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Enhanced structures list */
.study-structures-list {
    display: grid;
    gap: 12px;
    margin-top: 20px;
}

.study-structure-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 18px 24px;
    border-left: 4px solid var(--accent);
    transition: var(--transition);
    position: relative;
}

.study-structure-item:hover {
    border-color: var(--accent-border);
    background: var(--bg-card);
    transform: translateX(4px);
}

.study-str-en {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    font-style: italic;
}

.study-say-icon {
    color: var(--accent);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 8px;
    background: var(--accent-dim);
    border-radius: 6px;
    border: 1px solid var(--accent-border);
}

.study-say-icon:hover {
    transform: scale(1.1);
    background: var(--accent);
    color: #080c10;
}

/* Enhanced topics grid */
.study-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.study-topic-chip {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
    position: relative;
}

.study-topic-chip:hover {
    border-color: var(--accent-border);
    background: var(--bg-card);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.study-topic-chip i {
    padding: 4px;
    background: var(--accent-dim);
    border-radius: 4px;
    font-size: 0.8rem;
}

/* Study Notes Enhanced */
.study-note {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1), rgba(255, 193, 7, 0.05));
    border: 1px solid rgba(255, 193, 7, 0.3);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-top: 16px;
    font-size: 0.9rem;
    color: #ffc107;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.study-note i {
    margin-top: 2px;
    flex-shrink: 0;
}

/* Study Footer Enhanced */
.study-footer {
    border-top: 1px solid var(--border);
    background: linear-gradient(135deg, var(--bg-surface), var(--bg-base));
    position: sticky;
    bottom: 0;
    padding: 24px 0;
    backdrop-filter: blur(10px);
}

.study-footer-text {
    text-align: center;
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 500;
}

.study-footer-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.ex-continue-btn {
    display: block;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--ex-color, var(--accent)), var(--accent-soft));
    color: #080c10;
    border: none;
    padding: 16px 40px;
    border-radius: 50px;
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 24px rgba(0, 212, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.ex-continue-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.ex-continue-btn:hover::before {
    left: 100%;
}

.ex-continue-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 212, 255, 0.4);
}

/* Exercise Action Wrap Enhanced */
.ex-action-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
}

.ex-action-wrap .btn-ghost {
    font-size: 0.85rem;
    padding: 8px 20px;
    opacity: 0.8;
    transition: all 0.3s ease;
    border-radius: 50px;
}

.ex-action-wrap .btn-ghost:hover {
    opacity: 1;
    transform: translateY(-1px);
}

/* Exercise Complete Enhanced */
.ex-complete-trophy {
    margin-bottom: 24px;
    animation: trophy-bounce 2s ease-in-out infinite;
}

@keyframes trophy-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.ex-complete-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    align-items: center;
    margin-top: 32px;
}

/* Responsive Design Improvements */
@media (max-width: 768px) {
    .study-content {
        padding: 20px 0 60px;
    }
    
    .study-section {
        padding: 24px 20px;
        margin-bottom: 24px;
    }
    
    .flip-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 16px;
    }
    
    .flip-card {
        height: 120px;
    }
    
    .study-topics-grid {
        grid-template-columns: 1fr;
    }
    
    .study-dialogue-line {
        flex-direction: column;
        gap: 6px;
    }
    
    .study-cultural-point {
        flex-direction: column;
        gap: 12px;
    }
    
    .study-example-item {
        padding: 16px;
    }
    
    .ex-continue-btn {
        padding: 14px 32px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .study-section {
        padding: 20px 16px;
    }
    
    .study-section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .flip-grid {
        grid-template-columns: 1fr;
    }
    
    .study-footer-actions {
        width: 100%;
    }
    
    .ex-continue-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .ex-action-wrap .btn-ghost {
        width: 100%;
        max-width: 200px;
    }
}

/* Animation for completed checklist */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Intro Banner Enhanced */
.study-intro-banner {
    padding: 40px 0;
    margin-bottom: 0;
    position: relative;
    overflow: hidden;
}

.study-intro-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.study-intro-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    flex-shrink: 0;
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.4);
    position: relative;
    z-index: 1;
}

.study-week-label {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.study-week-title {
    font-size: 2.2rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 12px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.study-week-obj {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 10px;
    line-height: 1.5;
}
/* ═══════════════════════════════════════════════════
   FLOATING ACTION BUTTON (FAB) FOR STUDY PHASE
═══════════════════════════════════════════════════ */

.study-fab {
    position: fixed;
    top: calc(var(--nav-h) + 20px);
    right: 24px;
    z-index: 1000;
    background: linear-gradient(135deg, var(--ex-color, var(--accent)), var(--accent-soft));
    color: #080c10;
    border: none;
    border-radius: 50px;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    max-width: 60px;
    white-space: nowrap;
}

.study-fab:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 6px 28px rgba(0, 212, 255, 0.5);
    max-width: 200px;
    padding: 12px 24px;
}

.study-fab:active {
    transform: translateY(0) scale(0.98);
}

.study-fab i {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.study-fab-text {
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.study-fab:hover .study-fab-text {
    opacity: 1;
    transform: translateX(0);
}

/* Pulse animation for FAB */
.study-fab::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.study-fab:hover::before {
    width: 100%;
    height: 100%;
}

/* FAB responsive behavior */
@media (max-width: 768px) {
    .study-fab {
        top: calc(var(--nav-h) + 16px);
        right: 16px;
        padding: 10px 16px;
        font-size: 0.85rem;
    }
    
    .study-fab:hover {
        max-width: 180px;
        padding: 10px 20px;
    }
    
    .study-fab-text {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .study-fab {
        top: calc(var(--nav-h) + 12px);
        right: 12px;
        padding: 8px 12px;
        max-width: 48px;
    }
    
    .study-fab:hover {
        max-width: 160px;
        padding: 8px 16px;
    }
    
    .study-fab i {
        font-size: 1rem;
    }
    
    .study-fab-text {
        font-size: 0.75rem;
    }
}

/* Ensure FAB doesn't interfere with content */
.study-content {
    padding-right: 80px;
}

@media (max-width: 768px) {
    .study-content {
        padding-right: 24px;
    }
}

/* Study Footer Simplified */
.study-footer {
    border-top: 1px solid var(--border);
    background: linear-gradient(135deg, var(--bg-surface), var(--bg-base));
    padding: 16px 0;
    backdrop-filter: blur(10px);
    text-align: center;
}

.study-footer .btn-secondary {
    display: inline-block;
    margin: 0 auto;
    font-size: 0.85rem;
}

/* Animation for FAB when page loads */
@keyframes fabSlideIn {
    from {
        transform: translateX(100px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.study-fab {
    animation: fabSlideIn 0.5s ease-out 0.3s both;
}

/* FAB notification dot (for future use) */
.study-fab::after {
    content: '';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: #ef4444;
    border-radius: 50%;
    opacity: 0;
    transform: scale(0);
    transition: all 0.3s ease;
}

.study-fab.has-notification::after {
    opacity: 1;
    transform: scale(1);
}


/* ═══════════════════════════════════════════════════
   EXERCISE ENGINE — FULL LAYOUT
═══════════════════════════════════════════════════ */

.exercise-container {
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - var(--nav-h));
    background: var(--bg-base);
    --ex-color: var(--accent);
}

/* ── Header ── */
.ex-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 24px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: var(--nav-h);
    z-index: 100;
}

.ex-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
    transition: color 0.2s, background 0.2s;
    flex-shrink: 0;
}
.ex-close:hover { color: var(--text-primary); background: var(--border); }

.ex-progress-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
}

.ex-progress-bar {
    flex: 1;
    height: 8px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
}

.ex-progress-fill {
    height: 100%;
    background: var(--ex-color);
    border-radius: 99px;
    transition: width 0.4s ease;
}

.ex-counter {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 600;
    white-space: nowrap;
}

.ex-lives {
    display: flex;
    gap: 4px;
    font-size: 1.1rem;
}

/* ── Body ── */
.ex-body {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 32px 24px;
}

.ex-question-card {
    width: 100%;
    max-width: 640px;
}

.ex-instruction {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--ex-color);
    margin-bottom: 8px;
}

.ex-question {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    line-height: 1.4;
}

/* ── Options (MCQ) ── */
.ex-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.ex-option {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 18px;
    background: var(--bg-surface);
    border: 2px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
    text-align: left;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
    width: 100%;
}
.ex-option:hover:not(:disabled) {
    border-color: var(--ex-color);
    background: rgba(0, 212, 255, 0.05);
    transform: translateX(4px);
}
.ex-option.selected { border-color: var(--ex-color); background: rgba(0, 212, 255, 0.08); }
.ex-option.correct  { border-color: #22c55e; background: rgba(34, 197, 94, 0.1); color: #22c55e; }
.ex-option.wrong    { border-color: #ef4444; background: rgba(239, 68, 68, 0.1); color: #ef4444; }
.ex-option:disabled { cursor: default; }

.ex-option-letter {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* ── Word chips (sentence builder) ── */
.ex-sentence-area {
    min-height: 56px;
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 10px 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
    transition: border-color 0.2s;
}
.ex-sentence-area.has-words { border-color: var(--ex-color); }

.ex-word-bank {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.word-chip {
    padding: 8px 14px;
    background: var(--bg-surface);
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, transform 0.1s, opacity 0.15s;
}
.word-chip:hover { border-color: var(--ex-color); transform: translateY(-2px); }
.word-chip.used { opacity: 0.3; pointer-events: none; }
.word-chip.placed {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--ex-color);
    color: var(--ex-color);
}

/* ── Word Match (wm) ── */
.wm-body { align-items: center; }

.wm-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 20px 0 16px;
}

.wm-col-header {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.wm-item {
    display: block;
    width: 100%;
    padding: 12px 16px;
    margin-bottom: 8px;
    background: var(--bg-surface);
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.wm-item:hover:not(:disabled) {
    border-color: var(--ex-color);
    background: rgba(0, 212, 255, 0.06);
    transform: translateX(3px);
}
.wm-item.selected {
    border-color: var(--ex-color);
    background: rgba(0, 212, 255, 0.12);
    color: var(--ex-color);
}
.wm-item.matched {
    border-color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    cursor: default;
    opacity: 0.8;
}
.wm-item.wrong-flash {
    border-color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
    animation: wrongFlash 0.4s ease;
}
@keyframes wrongFlash {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

.wm-progress {
    height: 6px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
    margin-top: 8px;
}
.wm-progress-fill {
    height: 100%;
    background: #22c55e;
    border-radius: 99px;
    transition: width 0.4s ease;
}
.wm-progress-label {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: right;
    margin-top: 6px;
}

/* ── Footer (feedback + action) ── */
.ex-footer {
    position: sticky;
    bottom: 0;
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
    z-index: 100;
}

.ex-feedback {
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    animation: feedbackSlideUp 0.25s ease;
}
.ex-feedback.hidden { display: none; }

@keyframes feedbackSlideUp {
    from { transform: translateY(20px); opacity: 0; }
    to   { transform: translateY(0);    opacity: 1; }
}

.ex-feedback.fb-correct { background: rgba(34, 197, 94, 0.08); border-color: rgba(34, 197, 94, 0.3); }
.ex-feedback.fb-wrong   { background: rgba(239, 68, 68, 0.08); border-color: rgba(239, 68, 68, 0.3); }

.ex-feedback-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
}

.ex-feedback-icon { font-size: 1.6rem; flex-shrink: 0; }

.ex-feedback-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}
.fb-correct .ex-feedback-title { color: #22c55e; }
.fb-wrong   .ex-feedback-title { color: #ef4444; }

.ex-feedback-explain {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.ex-action-wrap {
    padding: 16px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    max-width: 640px;
    margin: 0 auto;
    width: 100%;
}

.ex-continue-btn {
    width: 100%;
    max-width: 360px;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--ex-color), var(--accent-soft));
    color: #080c10;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.ex-continue-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(0, 212, 255, 0.5); }
.ex-continue-btn:active { transform: translateY(0); }
.ex-continue-btn.hidden { display: none; }

/* ── Responsive ── */
@media (max-width: 600px) {
    .ex-header { padding: 10px 16px; gap: 10px; }
    .ex-body { padding: 20px 16px; }
    .ex-question { font-size: 1.2rem; }
    .wm-columns { gap: 10px; }
    .wm-item { padding: 10px 12px; font-size: 0.88rem; }
    .ex-action-wrap { padding: 12px 16px; }
    .ex-feedback { padding: 12px 16px; }
}

/* ═══════════════════════════════════════════════
   DAILY QUESTION WIDGET
═══════════════════════════════════════════════ */
.dq-widget { max-width: 680px; margin: 0 auto; }

.dq-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  transition: border-color 0.2s;
}
.dq-card:hover { border-color: var(--accent-border); }

.dq-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.dq-streak-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 700;
  color: #ef4444;
}
.dq-streak-badge i { font-size: 0.9rem; }
.dq-streak-active { background: rgba(239,68,68,0.18); border-color: rgba(239,68,68,0.5); }

.dq-category-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 50px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.dq-card-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 20px;
}

.dq-card-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dq-card-opt {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-base);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
  transition: all 0.15s;
  font-family: var(--font);
  width: 100%;
}
.dq-card-opt:hover { border-color: var(--accent); background: rgba(0,212,255,0.05); transform: translateX(3px); }

.dq-card-opt-letter {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dq-opt-static { cursor: default; }
.dq-opt-static:hover { transform: none; }

.dq-opt-correct { border-color: #22c55e !important; background: rgba(34,197,94,0.08) !important; }
.dq-opt-correct .dq-card-opt-letter { background: rgba(34,197,94,0.15); border-color: rgba(34,197,94,0.4); color: #22c55e; }

.dq-opt-wrong { border-color: #ef4444 !important; background: rgba(239,68,68,0.08) !important; }
.dq-opt-wrong .dq-card-opt-letter { background: rgba(239,68,68,0.15); border-color: rgba(239,68,68,0.4); color: #ef4444; }

.dq-opt-icon { margin-left: auto; color: #22c55e; }

.dq-card-result {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}
.dq-result-correct { background: rgba(34,197,94,0.12); color: #22c55e; border: 1px solid rgba(34,197,94,0.3); }
.dq-result-wrong { background: rgba(239,68,68,0.12); color: #ef4444; border: 1px solid rgba(239,68,68,0.3); }
.dq-card-result i { font-size: 1.3rem; }

.dq-explanation {
  margin-top: 16px;
  padding: 14px 18px;
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.2);
  border-radius: 12px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  display: flex;
  gap: 10px;
  align-items: flex-start;
  line-height: 1.5;
}
.dq-explanation i { color: #f59e0b; flex-shrink: 0; margin-top: 2px; }

.dq-done-msg {
  margin-top: 16px;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 10px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* ── Nuevos estados de racha ── */
.dq-streak-building {
  background: rgba(99,102,241,0.15);
  border-color: rgba(99,102,241,0.4);
  color: #a5b4fc;
}
.dq-streak-building i { color: #a5b4fc; }

.dq-streak-grace {
  background: rgba(245,158,11,0.15);
  border-color: rgba(245,158,11,0.4);
  color: #fbbf24;
  animation: pulse-grace 1.5s ease-in-out infinite;
}
.dq-streak-grace i { color: #fbbf24; }

.dq-streak-lost {
  background: rgba(239,68,68,0.12);
  border-color: rgba(239,68,68,0.3);
  color: #f87171;
}
.dq-streak-lost i { color: #f87171; }

@keyframes pulse-grace {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}

.dq-card-grace {
  border-color: rgba(245,158,11,0.4);
}

.dq-card-retry {
  border-color: rgba(239,68,68,0.4);
}

.dq-grace-notice {
  margin: 12px 0;
  padding: 12px 16px;
  background: rgba(245,158,11,0.1);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 10px;
  font-size: 0.88rem;
  color: #fbbf24;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.5;
}
.dq-grace-notice i { flex-shrink: 0; }

.dq-retry-notice {
  margin: 0 0 14px;
  padding: 12px 16px;
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: 10px;
  font-size: 0.88rem;
  color: #fca5a5;
  display: flex;
  align-items: center;
  gap: 10px;
  line-height: 1.5;
}
.dq-retry-notice i { flex-shrink: 0; color: #ef4444; }

.dq-date-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ══════════════════════════════════════════
   STREAK ANNOUNCEMENT — banner sticky
══════════════════════════════════════════ */
.streak-announcement {
  display: none;
  width: 100%;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  flex-wrap: wrap;
  position: sticky;
  top: var(--nav-h);
  z-index: 999;
  backdrop-filter: blur(12px);
}
.streak-ann-hidden { display: none !important; }

.streak-ann-icon { font-size: 1rem; flex-shrink: 0; }
.streak-announcement > span { line-height: 1.4; }
.streak-announcement strong { font-weight: 700; }

.streak-ann-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 6px;
  border: none;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.2s, transform 0.15s;
  flex-shrink: 0;
}
.streak-ann-btn:hover { opacity: 0.85; transform: translateY(-1px); }

/* Activa — fuego */
.streak-ann-active {
  display: flex !important;
  background: rgba(239,68,68,0.12);
  border-color: rgba(239,68,68,0.25);
  color: #fca5a5;
}
.streak-ann-active .streak-ann-icon { color: #ef4444; }
.streak-ann-active .streak-ann-btn { background: #ef4444; color: #fff; }

/* En construcción — semilla */
.streak-ann-building {
  display: flex !important;
  background: rgba(99,102,241,0.12);
  border-color: rgba(99,102,241,0.25);
  color: #c4b5fd;
}
.streak-ann-building .streak-ann-icon { color: #a78bfa; }
.streak-ann-building .streak-ann-btn { background: #6366f1; color: #fff; }

/* Gracia — reloj */
.streak-ann-grace {
  display: flex !important;
  background: rgba(245,158,11,0.12);
  border-color: rgba(245,158,11,0.3);
  color: #fde68a;
  animation: pulse-grace 1.5s ease-in-out infinite;
}
.streak-ann-grace .streak-ann-icon { color: #f59e0b; }
.streak-ann-grace .streak-ann-btn { background: #f59e0b; color: #080c10; font-weight: 700; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}


/* ═══════════════════════════════════════════════
   AVANCES PAGE
═══════════════════════════════════════════════ */

.avances-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.av-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  transition: var(--transition);
}
.av-stat-card:hover { border-color: var(--accent-border); transform: translateY(-2px); }

.av-stat-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
}
.av-stat-val { font-size: 1.8rem; font-weight: 800; color: var(--text-primary); }
.av-stat-label { font-size: 0.78rem; color: var(--text-secondary); font-weight: 500; }

.avances-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.avances-section-title i { color: var(--accent); }

.avances-courses { margin-bottom: 40px; display: flex; flex-direction: column; gap: 16px; }

.av-course-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.av-course-block:hover { border-color: var(--accent-border); }

.av-course-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 20px 12px;
}
.av-course-thumb {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; color: #fff;
  flex-shrink: 0;
}
.av-course-info { flex: 1; min-width: 0; }
.av-course-title { font-weight: 700; font-size: 0.95rem; }
.av-course-sub { font-size: 0.78rem; color: var(--text-secondary); margin-top: 2px; }
.av-course-pct { font-size: 1.3rem; font-weight: 800; color: var(--accent); }

.av-course-bar-wrap {
  height: 6px;
  background: var(--bg-elevated);
  margin: 0 20px 16px;
  border-radius: 10px;
  overflow: hidden;
}
.av-course-bar-fill {
  height: 100%;
  border-radius: 10px;
  transition: width 0.8s ease;
}

.av-weeks-list {
  padding: 0 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.av-week-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.83rem;
}
.av-week-done { background: rgba(0,212,255,0.05); }
.av-week-pending { opacity: 0.5; }
.av-week-icon { font-size: 0.9rem; }
.av-week-done .av-week-icon { color: var(--accent); }
.av-week-pending .av-week-icon { color: var(--text-muted); }
.av-week-info { display: flex; flex-direction: column; gap: 1px; }
.av-week-name { font-weight: 600; color: var(--text-primary); }
.av-week-meta { font-size: 0.75rem; color: var(--text-secondary); }

/* Timeline */
.av-timeline { display: flex; flex-direction: column; gap: 12px; margin-bottom: 40px; }
.av-timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  transition: var(--transition);
}
.av-timeline-item:hover { border-color: var(--accent-border); }
.av-tl-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff;
  flex-shrink: 0;
}
.av-tl-body { flex: 1; min-width: 0; }
.av-tl-title { font-size: 0.88rem; color: var(--text-primary); margin-bottom: 3px; }
.av-tl-sub { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 4px; }
.av-tl-xp { color: var(--accent); font-weight: 700; }
.av-tl-date { font-size: 0.73rem; color: var(--text-muted); }
.av-timeline-empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 32px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

@media (max-width: 768px) {
  .avances-stats-row { grid-template-columns: repeat(2, 1fr); }
  .av-course-header { flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .avances-stats-row { grid-template-columns: repeat(2, 1fr); }
}


/* ═══════════════════════════════════════════════
   RESUMEN PAGE
═══════════════════════════════════════════════ */

.rs-welcome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}
.rs-welcome-text h2 { font-size: 1.6rem; font-weight: 800; margin-bottom: 4px; }
.rs-welcome-text p { color: var(--text-secondary); font-size: 0.9rem; }

.rs-streak {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(251,191,36,0.12), rgba(245,158,11,0.08));
  border: 1px solid rgba(251,191,36,0.35);
  border-radius: 50px;
  padding: 10px 20px 10px 14px;
  color: #fbbf24;
  box-shadow: 0 0 16px rgba(251,191,36,0.12);
}
.rs-streak i { font-size: 1.3rem; color: #fbbf24; }
.rs-streak span { font-size: 1.5rem; font-weight: 800; line-height: 1; color: #fbbf24; }
.rs-streak small { font-size: 0.72rem; font-weight: 600; color: rgba(251,191,36,0.7); margin-top: 1px; }

.rs-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}
.rs-stat {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
  transition: var(--transition);
}
.rs-stat:hover { border-color: var(--accent-border); transform: translateY(-2px); }
.rs-stat-icon { width: 40px; height: 40px; border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; }
.rs-stat-val { font-size: 1.7rem; font-weight: 800; }
.rs-stat-lbl { font-size: 0.75rem; color: var(--text-secondary); font-weight: 500; }

.rs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  margin-bottom: 32px;
}

.rs-section-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.rs-section-title i { color: var(--accent); }

/* Cursos activos */
.rs-course-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 10px;
  transition: var(--transition);
  cursor: pointer;
}
.rs-course-row:hover { border-color: var(--accent-border); }
.rs-course-thumb {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: #fff; flex-shrink: 0;
}
.rs-course-info { flex: 1; min-width: 0; }
.rs-course-name { font-size: 0.85rem; font-weight: 700; margin-bottom: 5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rs-course-bar-wrap { height: 4px; background: var(--bg-elevated); border-radius: 10px; overflow: hidden; margin-bottom: 4px; }
.rs-course-bar-fill { height: 100%; border-radius: 10px; transition: width 0.6s ease; }
.rs-course-meta { font-size: 0.72rem; color: var(--text-secondary); }
.rs-continue-btn { flex-shrink: 0; padding: 6px 12px !important; }

/* Actividad reciente */
.rs-activity-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.rs-activity-item:last-child { border-bottom: none; }
.rs-act-icon { width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; color: #fff; flex-shrink: 0; }
.rs-act-body { flex: 1; min-width: 0; }
.rs-act-title { font-size: 0.83rem; font-weight: 600; }
.rs-act-sub { font-size: 0.75rem; color: var(--text-secondary); }
.rs-act-date { font-size: 0.72rem; color: var(--text-muted); white-space: nowrap; }

/* Siguiente paso */
.rs-next-up { margin-bottom: 32px; }
.rs-next-label { font-size: 0.88rem; font-weight: 700; color: var(--text-secondary); margin-bottom: 10px; display: flex; align-items: center; gap: 7px; }
.rs-next-label i { color: var(--accent); }
.rs-next-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  transition: var(--transition);
}
.rs-next-card:hover { box-shadow: var(--shadow-accent); }
.rs-next-thumb { width: 48px; height: 48px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; color: #fff; flex-shrink: 0; }
.rs-next-info { flex: 1; }
.rs-next-course { font-size: 0.78rem; color: var(--text-secondary); }
.rs-next-week { font-size: 1rem; font-weight: 700; }

.rs-empty-block {
  color: var(--text-secondary);
  font-size: 0.85rem;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 8px;
}

@media (max-width: 768px) {
  .rs-stats-row { grid-template-columns: repeat(2, 1fr); }
  .rs-grid { grid-template-columns: 1fr; }
  .rs-welcome { flex-direction: column; align-items: flex-start; }
}

/* ═══════════════════════════════════════════════════════════════════════════════
   SISTEMA DE CALIFICACIÓN HABILIDADES SOCIALES
   ═══════════════════════════════════════════════════════════════════════════════ */

.ex-retry {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.ex-retry-icon {
  margin-bottom: 1.5rem;
  animation: pulse 2s infinite;
}

.ex-retry-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: #92400e;
  margin-bottom: 1.5rem;
  text-align: center;
}

.ex-retry-score {
  display: flex;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.score-circle {
  width: 120px;
  height: 120px;
  border: 6px solid;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: white;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.score-number {
  font-size: 2rem;
  font-weight: 800;
}

.ex-retry-msg {
  text-align: center;
  font-size: 1.1rem;
  color: #92400e;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.ex-retry-encouragement {
  background: rgba(251, 191, 36, 0.2);
  border: 2px solid #fbbf24;
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 2rem;
  text-align: center;
}

.ex-retry-encouragement p {
  margin: 0;
  color: #92400e;
  font-weight: 500;
}

.ex-retry-encouragement i {
  margin-right: 0.5rem;
}

/* Animaciones */
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Responsive */
@media (max-width: 640px) {
  .ex-retry-title {
    font-size: 1.5rem;
  }
  
  .score-circle {
    width: 100px;
    height: 100px;
  }
  
  .score-number {
    font-size: 1.75rem;
  }
  
  .ex-retry-msg {
    font-size: 1rem;
  }
}
/* ═══════════════════════════════════════════════════════════════════════════════
   SISTEMA DE CALIFICACIÓN - ELEMENTOS ADICIONALES
   ═══════════════════════════════════════════════════════════════════════════════ */

/* Aviso de sistema de calificación */
.cd-grading-notice {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  border: 2px solid #fbbf24;
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.grading-notice-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  background: #fbbf24;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.25rem;
}

.grading-notice-content h4 {
  margin: 0 0 0.5rem 0;
  color: #92400e;
  font-weight: 700;
  font-size: 1.1rem;
}

.grading-notice-content p {
  margin: 0 0 1rem 0;
  color: #92400e;
  line-height: 1.5;
}

.grading-notice-content ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.grading-notice-content li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #92400e;
  font-weight: 500;
  margin-bottom: 0.25rem;
}

/* Información de progreso en el path */
.path-week-retry {
  margin-top: 0.5rem;
  padding: 0.25rem 0.5rem;
  background: rgba(251, 191, 36, 0.2);
  border: 1px solid #fbbf24;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: #92400e;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.path-week-score {
  margin-top: 0.5rem;
  padding: 0.25rem 0.5rem;
  background: rgba(34, 197, 94, 0.2);
  border: 1px solid #22c55e;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: #166534;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Nodo de retry en el path */
.week-node.node-retry {
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  color: white;
  border: 3px solid #f59e0b;
  animation: pulse-retry 2s infinite;
}

@keyframes pulse-retry {
  0%, 100% { 
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(251, 191, 36, 0.7);
  }
  50% { 
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(251, 191, 36, 0);
  }
}

/* Responsive */
@media (max-width: 640px) {
  .cd-grading-notice {
    flex-direction: column;
    text-align: center;
  }
  
  .grading-notice-content ul {
    text-align: left;
  }
}
/* ═══════════════════════════════════════════════════
   TIENDA PAGE - Sistema de Recompensas
═══════════════════════════════════════════════════ */

.user-xp-display {
    margin-bottom: 32px;
    display: flex;
    justify-content: center;
}

.xp-card {
    background: linear-gradient(135deg, var(--accent-dim), var(--bg-card));
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-lg);
    padding: 24px 32px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-accent);
}

.xp-icon {
    width: 50px;
    height: 50px;
    background: var(--accent);
    color: #080c10;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.xp-info {
    text-align: center;
}

.xp-amount {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--accent);
    margin-bottom: 4px;
}

.xp-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.rewards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.reward-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.reward-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

.reward-card.reward-disabled {
    opacity: 0.6;
    filter: grayscale(0.5);
}

.reward-card.reward-unavailable {
    opacity: 0.4;
    filter: grayscale(1);
}

.reward-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent);
    margin: 0 auto;
}

.reward-info {
    text-align: center;
    flex: 1;
}

.reward-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.reward-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 12px;
}

.reward-cost {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    border-radius: 50px;
    padding: 8px 16px;
    margin: 0 auto;
    width: fit-content;
}

.reward-actions {
    display: flex;
    justify-content: center;
}

.reward-claim-btn {
    padding: 10px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 140px;
    justify-content: center;
}

.my-rewards-section {
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.my-rewards-section h2 {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.claimed-rewards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.claimed-reward-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.claimed-reward-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--accent);
    flex-shrink: 0;
}

.claimed-reward-info {
    flex: 1;
}

.claimed-reward-info h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.claimed-reward-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.claimed-reward-cost {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
}

.claimed-reward-status {
    font-size: 1.2rem;
}

.no-claimed-rewards,
.empty-rewards,
.error-rewards {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.no-claimed-rewards i,
.empty-rewards i,
.error-rewards i {
    font-size: 3rem;
    margin-bottom: 16px;
    display: block;
}

/* ═══════════════════════════════════════════════════
   MISIONES PAGE - Sistema de Misiones
═══════════════════════════════════════════════════ */

.missions-tabs {
    display: flex;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 4px;
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.mission-tab {
    flex: 1;
    padding: 12px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: none;
    border: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
}

.mission-tab.active {
    background: var(--accent);
    color: #080c10;
    box-shadow: 0 2px 12px rgba(0, 212, 255, 0.3);
}

.missions-content {
    position: relative;
}

.mission-category {
    display: none;
}

.mission-category.active {
    display: block;
}

.mission-card,
.achievement-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.mission-card:hover,
.achievement-card:hover {
    border-color: var(--accent-border);
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent);
}

.mission-card.mission-completed,
.achievement-card.achievement-completed {
    background: linear-gradient(135deg, var(--bg-card), rgba(34, 197, 94, 0.05));
    border-color: rgba(34, 197, 94, 0.3);
}

.mission-icon,
.achievement-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: var(--accent);
    flex-shrink: 0;
}

.mission-info,
.achievement-info {
    flex: 1;
}

.mission-title,
.achievement-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.mission-description,
.achievement-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 12px;
}

.mission-progress,
.achievement-progress {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mission-progress-bar,
.achievement-progress-bar {
    flex: 1;
    height: 8px;
    background: var(--bg-elevated);
    border-radius: 10px;
    overflow: hidden;
}

.mission-progress-fill,
.achievement-progress-fill {
    height: 100%;
    border-radius: 10px;
    transition: width 0.6s ease;
}

.mission-progress-text,
.achievement-progress-text {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    min-width: 50px;
    text-align: right;
}

.mission-reward,
.achievement-reward {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
    min-width: 120px;
}

.mission-xp,
.achievement-xp {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    border-radius: 20px;
    padding: 6px 12px;
}

.mission-status-completed,
.achievement-status-completed {
    font-size: 0.8rem;
    font-weight: 600;
    color: #22c55e;
    display: flex;
    align-items: center;
    gap: 4px;
}

.mission-status-pending,
.achievement-status-pending {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.error-missions,
.error-achievements {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

/* Responsive para misiones y tienda */
@media (max-width: 768px) {
    .rewards-grid {
        grid-template-columns: 1fr;
    }
    
    .mission-card,
    .achievement-card {
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .mission-progress,
    .achievement-progress {
        width: 100%;
    }
    
    .missions-tabs {
        flex-direction: column;
        border-radius: var(--radius-md);
    }
    
    .mission-tab {
        border-radius: var(--radius-sm);
    }
    
    .xp-card {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .claimed-reward-item {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .reward-card {
        padding: 20px;
    }
    
    .mission-card,
    .achievement-card {
        padding: 20px;
    }
}
/* ═══════════════════════════════════════════════════
   ADMIN - Gestión de Recompensas y XP
═══════════════════════════════════════════════════ */

.rewards-management-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.admin-reward-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
}

.admin-reward-card:hover {
    border-color: var(--accent-border);
    box-shadow: var(--shadow-accent);
}

.admin-reward-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.admin-reward-icon {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--accent);
    flex-shrink: 0;
}

.admin-reward-info {
    flex: 1;
}

.admin-reward-info h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.admin-reward-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.admin-reward-actions {
    display: flex;
    gap: 8px;
}

.btn-admin-secondary,
.btn-admin-danger {
    padding: 6px 10px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-admin-secondary {
    background: var(--bg-elevated);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-admin-secondary:hover {
    color: var(--accent);
    border-color: var(--accent-border);
}

.btn-admin-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-admin-danger:hover {
    background: rgba(239, 68, 68, 0.2);
}

.admin-reward-stats {
    display: flex;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.admin-reward-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 0.9rem;
    font-weight: 700;
}

.status-active {
    color: #22c55e;
}

.status-inactive {
    color: #ef4444;
}

/* XP Management */
.xp-management-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.xp-user-search h4,
.xp-actions-panel h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.xp-user-results {
    margin-top: 16px;
    max-height: 400px;
    overflow-y: auto;
}

.xp-user-result {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.xp-user-result:hover {
    border-color: var(--accent-border);
    background: var(--bg-card-hover);
}

.xp-user-result.selected {
    border-color: var(--accent);
    background: var(--accent-dim);
}

.xp-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #0044ff);
    color: #080c10;
    font-size: 0.8rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.xp-user-info {
    flex: 1;
}

.xp-user-name {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.xp-user-email {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.xp-user-xp {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
}

.xp-actions-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
}

.selected-user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-elevated);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.selected-user-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #0044ff);
    color: #080c10;
    font-size: 1rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.selected-user-details h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.selected-user-details p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.current-xp {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--accent);
}

.xp-action-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.admin-input,
.admin-select {
    width: 100%;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition);
}

.admin-input:focus,
.admin-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    accent-color: var(--accent);
}

.no-search-results,
.error-search-results {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.empty-admin-content,
.error-admin-content {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-admin-content i,
.error-admin-content i {
    font-size: 3rem;
    margin-bottom: 16px;
    display: block;
}

/* Admin Modal */
.admin-modal {
    background: var(--bg-surface);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-xl);
    padding: 0;
    width: 100%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(0, 212, 255, 0.08);
    animation: slideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.admin-modal.large {
    max-width: 700px;
}

.admin-modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.admin-modal-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
}

.admin-modal-body {
    padding: 24px;
}

.admin-modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Responsive */
@media (max-width: 768px) {
    .xp-management-layout {
        grid-template-columns: 1fr;
    }
    
    .admin-reward-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .admin-reward-stats {
        flex-direction: column;
        gap: 12px;
    }
    
    .admin-modal {
        margin: 20px;
        max-width: calc(100vw - 40px);
    }
}

/* Forgot password - search row & user card */
.forgot-search-row {
    display: flex;
    gap: 10px;
    align-items: stretch;
    margin-bottom: 12px;
}
.forgot-search-btn {
    padding: 0 16px;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.forgot-user-card {
    display: flex;
    align-items: center;
    gap: 14px;
    background: rgba(0, 212, 255, 0.06);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: 12px;
    padding: 14px 16px;
    animation: fadeInUp 0.25s ease;
}
.forgot-user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent);
    color: #080c10;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 0.9rem;
    flex-shrink: 0;
}
.forgot-user-info {
    flex: 1;
    min-width: 0;
}
.forgot-user-name {
    font-weight: 700;
    font-size: 0.95rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.forgot-user-email {
    font-size: 0.78rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.forgot-user-check {
    color: #4ade80;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.forgot-spam-hint {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    background: rgba(251, 191, 36, 0.08);
    border: 1px solid rgba(251, 191, 36, 0.25);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 0.8rem;
    color: #fbbf24;
    margin-top: 10px;
    line-height: 1.5;
}
.forgot-spam-hint i { margin-top: 2px; flex-shrink: 0; }
.forgot-spam-hint strong { color: #fde68a; }

/* ═══ STUDY PHASE — IMAGE GALLERY & PROMPT BOX ═══ */
.study-images-gallery {
  margin-top: 20px;
  overflow: hidden;
}
.study-images-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 7px;
}
.study-images-label i { color: var(--accent); }

/* Grid — múltiples imágenes */
.study-images-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

/* Grid — imagen única: centrada y más grande */
.study-images-grid--single {
  display: flex;
  justify-content: center;
}

/* Card base */
.study-image-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
}
.study-image-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.35);
}

/* Card única — más ancha */
.study-image-card--single {
  max-width: 380px;
  width: 100%;
}

/* Contenedor de imagen con aspect-ratio fijo */
.study-image-wrap {
  width: 100%;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-base);
  display: flex;
  align-items: center;
  justify-content: center;
}
.study-image-card--single .study-image-wrap {
  aspect-ratio: auto;
  max-height: 340px;
}

.study-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.study-image-card--single .study-image {
  object-fit: contain;
  height: auto;
  max-height: 340px;
}

/* Info debajo de la imagen */
.study-image-info {
  padding: 10px 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.study-image-caption {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}
.study-image-prompt {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  gap: 5px;
  align-items: flex-start;
}
.study-image-prompt i {
  color: var(--accent);
  margin-top: 2px;
  flex-shrink: 0;
  font-size: 0.7rem;
}

/* Prompt box */
.study-prompt-box {
  margin-top: 16px;
  background: rgba(0,212,255,0.05);
  border: 1px solid rgba(0,212,255,0.2);
  border-left: 3px solid var(--accent);
  border-radius: 12px;
  overflow: hidden;
}
.study-prompt-box-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(0,212,255,0.08);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.study-prompt-text {
  padding: 12px 14px;
  font-family: 'Courier New', monospace;
  font-size: 0.88rem;
  color: var(--text-primary);
  line-height: 1.6;
  white-space: pre-wrap;
}
.study-prompt-explanation {
  padding: 8px 14px 12px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-top: 1px solid rgba(0,212,255,0.1);
  line-height: 1.5;
}

/* Image examples grid (for imageExamples in courses) */
.study-image-examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
  margin-top: 8px;
}
.study-image-example-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.study-image-example-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}
.study-image-example-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
}
.study-image-example-desc {
  font-size: 0.8rem;
  color: var(--text-primary);
  line-height: 1.4;
}
.study-image-example-prompt {
  margin-top: 4px;
  background: var(--bg-base);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: flex;
  gap: 6px;
  align-items: flex-start;
}
.study-image-example-prompt i { color: var(--accent); margin-top: 2px; flex-shrink: 0; }
.study-image-example-prompt code {
  font-family: 'Courier New', monospace;
  font-size: 0.73rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}