/* ============================================
   NadinLab Academy Platform — Styles
   Matches existing site's dark theme + glassmorphism
   ============================================ */

:root {
    --bg: #0a0a0f;
    --bg-2: #12121a;
    --bg-3: #1a1a28;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --glass: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text: #ffffff;
    --text-2: rgba(255, 255, 255, 0.7);
    --text-3: rgba(255, 255, 255, 0.45);
    --accent: #a855f7;
    --accent-2: #6366f1;
    --accent-glow: rgba(168, 85, 247, 0.3);
    --gradient: linear-gradient(135deg, #a855f7, #6366f1, #ec4899);
    --gradient-2: linear-gradient(135deg, #6366f1, #a855f7);
    --green: #22c55e;
    --red: #ef4444;
    --orange: #f59e0b;
    --blue: #3b82f6;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-xs: 6px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    --font: 'Inter', -apple-system, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;
    --nav-h: 72px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

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

a { color: var(--accent); text-decoration: none; }
a:hover { color: #c084fc; }

/* ============================================
   Navigation
   ============================================ */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    height: var(--nav-h);
}

.nav__container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text);
}

.nav__logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav__logo-badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 2px 8px;
    background: var(--gradient);
    border-radius: 20px;
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav__links {
    display: flex;
    gap: 8px;
}

.nav__link {
    color: var(--text-2);
    padding: 8px 16px;
    border-radius: var(--radius-xs);
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav__link:hover, .nav__link.active {
    color: var(--text);
    background: var(--glass);
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav__auth {
    display: flex;
    gap: 8px;
}

.nav__user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav__notif-btn {
    position: relative;
    background: none;
    border: none;
    color: var(--text-2);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-xs);
    transition: var(--transition);
}

.nav__notif-btn:hover { color: var(--text); background: var(--glass); }

.nav__notif-badge {
    position: absolute;
    top: 2px;
    right: 2px;
    background: var(--red);
    color: white;
    font-size: 0.6rem;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 10px;
    min-width: 16px;
    text-align: center;
}

.nav__user-dropdown { position: relative; }

.nav__user-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text);
    padding: 6px 12px 6px 6px;
    border-radius: 40px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav__user-btn:hover { background: var(--bg-card-hover); }

.nav__user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: white;
    overflow: hidden;
}

.nav__user-avatar img { width: 100%; height: 100%; object-fit: cover; }

.nav__dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--bg-2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    padding: 8px;
    z-index: 100;
}

.nav__dropdown.open { display: block; }

.nav__dropdown-item {
    display: block;
    padding: 10px 16px;
    color: var(--text-2);
    border-radius: var(--radius-xs);
    font-size: 0.85rem;
    transition: var(--transition);
}

.nav__dropdown-item:hover {
    background: var(--glass);
    color: var(--text);
}

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

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--accent-glow);
}

.btn--secondary {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text);
}

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

.btn--ghost {
    background: transparent;
    color: var(--text-2);
    border: 1px solid transparent;
}

.btn--ghost:hover {
    background: var(--glass);
    color: var(--text);
}

.btn--sm { padding: 6px 16px; font-size: 0.8rem; }
.btn--lg { padding: 14px 32px; font-size: 1rem; }
.btn--full { width: 100%; }
.btn--green { background: var(--green); color: white; }
.btn--red { background: var(--red); color: white; }
.btn--disabled { opacity: 0.5; pointer-events: none; }

/* ============================================
   Main App Area
   ============================================ */
.app {
    padding-top: var(--nav-h);
    min-height: 100vh;
}

.app__loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: calc(100vh - var(--nav-h));
    gap: 16px;
    color: var(--text-3);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================
   Hero Section (Academy Landing)
   ============================================ */
.hero {
    padding: 80px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0.4;
}

.hero__badge {
    display: inline-block;
    padding: 6px 20px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 40px;
    font-size: 0.8rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 24px;
    position: relative;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.15;
    max-width: 800px;
    margin: 0 auto 20px;
    position: relative;
}

.hero__title span {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__desc {
    font-size: 1.1rem;
    color: var(--text-2);
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.8;
    position: relative;
}

.hero__actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

.hero__stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 56px;
    position: relative;
}

.hero__stat {
    text-align: center;
}

.hero__stat-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__stat-label {
    font-size: 0.8rem;
    color: var(--text-3);
    margin-top: 4px;
}

/* ============================================
   Section Headers
   ============================================ */
.section {
    padding: 60px 24px;
    max-width: 1280px;
    margin: 0 auto;
}

.section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    flex-wrap: wrap;
    gap: 16px;
}

.section__title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
}

.section__title span {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Cards Grid
   ============================================ */
.grid {
    display: grid;
    gap: 24px;
}

.grid--3 { grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.grid--2 { grid-template-columns: repeat(auto-fill, minmax(400px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }

/* ============================================
   Creator Card
   ============================================ */
.creator-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.creator-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(168, 85, 247, 0.3);
}

.creator-card__top {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.creator-card__avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
    overflow: hidden;
}

.creator-card__avatar img { width: 100%; height: 100%; object-fit: cover; }

.creator-card__info { flex: 1; min-width: 0; }

.creator-card__name {
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 6px;
}

.creator-card__verified {
    color: var(--blue);
    font-size: 0.85rem;
}

.creator-card__specialty {
    color: var(--text-3);
    font-size: 0.8rem;
    margin-top: 2px;
}

.creator-card__rating {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 12px;
}

.stars {
    color: var(--orange);
    font-size: 0.85rem;
    letter-spacing: 2px;
}

.creator-card__rating-num {
    font-weight: 700;
    font-size: 0.9rem;
}

.creator-card__rating-count {
    color: var(--text-3);
    font-size: 0.8rem;
}

.creator-card__desc {
    color: var(--text-2);
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.creator-card__tools {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.tag {
    padding: 3px 10px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    font-size: 0.7rem;
    color: var(--text-2);
    white-space: nowrap;
}

.tag--accent {
    background: rgba(168, 85, 247, 0.15);
    border-color: rgba(168, 85, 247, 0.3);
    color: var(--accent);
}

.creator-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
}

.creator-card__price {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
}

.creator-card__price small {
    font-size: 0.75rem;
    color: var(--text-3);
    font-weight: 400;
}

.creator-card__meta {
    display: flex;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--text-3);
}

.creator-card__featured {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 3px 10px;
    background: var(--gradient);
    border-radius: 20px;
    font-size: 0.65rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ============================================
   Course Card
   ============================================ */
.course-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(168, 85, 247, 0.3);
}

.course-card__img {
    width: 100%;
    height: 180px;
    background: var(--bg-3);
    position: relative;
    overflow: hidden;
}

.course-card__img img { width: 100%; height: 100%; object-fit: cover; }

.course-card__img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    background: linear-gradient(135deg, var(--bg-3), var(--bg-2));
}

.course-card__level {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 3px 10px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    color: white;
}

.course-card__body {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-card__category {
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.course-card__title {
    font-weight: 700;
    font-size: 1.05rem;
    margin-bottom: 8px;
    line-height: 1.4;
}

.course-card__desc {
    color: var(--text-2);
    font-size: 0.83rem;
    margin-bottom: 16px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-card__creator {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.course-card__creator-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    color: white;
}

.course-card__creator-name {
    font-size: 0.8rem;
    color: var(--text-2);
}

.course-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid var(--glass-border);
}

.course-card__price {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
}

.course-card__price .currency { font-size: 0.85rem; }

.course-card__stats {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-3);
}

/* ============================================
   Creator Profile Page
   ============================================ */
.profile {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 24px;
}

.profile__header {
    display: flex;
    gap: 32px;
    align-items: flex-start;
    margin-bottom: 48px;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}

.profile__avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
    overflow: hidden;
}

.profile__avatar img { width: 100%; height: 100%; object-fit: cover; }

.profile__info { flex: 1; }

.profile__name {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.profile__specialty {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.profile__desc {
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.profile__stats {
    display: flex;
    gap: 32px;
    margin-bottom: 16px;
}

.profile__stat {
    text-align: center;
}

.profile__stat-num {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
}

.profile__stat-label {
    font-size: 0.75rem;
    color: var(--text-3);
}

.profile__actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.profile__sidebar { width: 380px; flex-shrink: 0; }

.profile__tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 32px;
}

.profile__tab {
    padding: 12px 20px;
    background: none;
    border: none;
    color: var(--text-3);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.profile__tab:hover { color: var(--text-2); }
.profile__tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ============================================
   Course Detail Page
   ============================================ */
.course-detail {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 24px;
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
}

.course-detail__main { min-width: 0; }

.course-detail__hero {
    margin-bottom: 32px;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
}

.course-detail__category {
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.course-detail__title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 12px;
    line-height: 1.3;
}

.course-detail__desc {
    color: var(--text-2);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.course-detail__meta {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: var(--text-3);
}

.course-detail__meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Sidebar */
.course-detail__sidebar {
    position: sticky;
    top: calc(var(--nav-h) + 24px);
    height: fit-content;
}

.course-detail__card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px;
}

.course-detail__card-price {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.course-detail__card-price .currency {
    font-size: 1.5rem;
    color: var(--text-3);
}

.course-detail__card-features {
    list-style: none;
    margin-bottom: 24px;
}

.course-detail__card-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-2);
}

.course-detail__card-features li:last-child { border: none; }

/* Modules Accordion */
.modules { margin-top: 32px; }

.module {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    overflow: hidden;
}

.module__header {
    padding: 18px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: var(--transition);
}

.module__header:hover { background: var(--bg-card-hover); }

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

.module__count {
    color: var(--text-3);
    font-size: 0.8rem;
}

.module__lessons {
    display: none;
    padding: 0 20px 16px;
}

.module.open .module__lessons { display: block; }

.lesson-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-top: 1px solid var(--glass-border);
    font-size: 0.85rem;
}

.lesson-item__icon {
    color: var(--text-3);
    font-size: 0.9rem;
}

.lesson-item__title { flex: 1; color: var(--text-2); }
.lesson-item__duration { color: var(--text-3); font-size: 0.75rem; }
.lesson-item__free { color: var(--green); font-size: 0.7rem; font-weight: 600; }

/* ============================================
   Dashboard
   ============================================ */
.dashboard {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 24px;
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 32px;
}

.dashboard__sidebar {
    position: sticky;
    top: calc(var(--nav-h) + 24px);
    height: fit-content;
}

.dashboard__nav {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 8px;
}

.dashboard__nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-2);
    border-radius: var(--radius-xs);
    font-size: 0.85rem;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    font-family: var(--font);
}

.dashboard__nav-item:hover { background: var(--glass); color: var(--text); }
.dashboard__nav-item.active { background: var(--gradient); color: white; }

.dashboard__content { min-width: 0; }

.dashboard__title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 32px;
}

/* Dashboard Stats Cards */
.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 24px;
}

.stat-card__label {
    font-size: 0.75rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.stat-card__value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
}

.stat-card__value--accent {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   Booking Calendar
   ============================================ */
.calendar {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
}

.calendar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.calendar__month {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
}

.calendar__nav {
    display: flex;
    gap: 8px;
}

.calendar__btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
}

.calendar__btn:hover { background: var(--bg-card-hover); }

.calendar__grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar__day-name {
    text-align: center;
    font-size: 0.7rem;
    color: var(--text-3);
    padding: 8px;
    font-weight: 600;
    text-transform: uppercase;
}

.calendar__day {
    text-align: center;
    padding: 10px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
    color: var(--text-2);
}

.calendar__day:hover { background: var(--glass); }
.calendar__day--today { background: var(--glass); font-weight: 700; color: var(--text); }
.calendar__day--selected { background: var(--accent) !important; color: white; font-weight: 700; }
.calendar__day--disabled { color: var(--text-3); opacity: 0.3; pointer-events: none; }
.calendar__day--empty { pointer-events: none; }
.calendar__day--has-slot { border: 1px solid rgba(34, 197, 94, 0.4); }

.time-slots {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
    margin-top: 16px;
}

.time-slot {
    padding: 10px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xs);
    text-align: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.time-slot:hover { border-color: var(--accent); color: var(--accent); }
.time-slot.selected { background: var(--accent); color: white; border-color: var(--accent); }
.time-slot.booked { opacity: 0.3; pointer-events: none; text-decoration: line-through; }

/* ============================================
   Filters Bar
   ============================================ */
.filters {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 32px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}

.filter-select {
    padding: 8px 16px;
    background: var(--bg-3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.85rem;
    cursor: pointer;
    appearance: none;
    padding-right: 32px;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888' stroke-width='2'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent);
}

.filter-search {
    flex: 1;
    min-width: 200px;
    padding: 8px 16px;
    background: var(--bg-3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.85rem;
}

.filter-search:focus {
    outline: none;
    border-color: var(--accent);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-2);
    margin-bottom: 6px;
}

.form-input, .form-textarea, .form-select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-3);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xs);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea {
    resize: vertical;
    min-height: 100px;
}

.form-error {
    color: var(--red);
    font-size: 0.8rem;
    margin-bottom: 12px;
    min-height: 20px;
}

/* Role Selection in Register */
.role-select {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.role-option input { display: none; }

.role-card {
    padding: 20px;
    background: var(--bg-3);
    border: 2px solid var(--glass-border);
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.role-option input:checked + .role-card {
    border-color: var(--accent);
    background: rgba(168, 85, 247, 0.1);
}

.role-icon { font-size: 2rem; display: block; margin-bottom: 8px; }
.role-title { display: block; font-weight: 700; font-size: 0.95rem; }
.role-desc { display: block; font-size: 0.75rem; color: var(--text-3); margin-top: 4px; }

/* ============================================
   Modal
   ============================================ */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.open {
    display: flex;
}

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
}

.modal__content {
    position: relative;
    background: var(--bg-2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 40px;
    max-width: 440px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
}

.modal__content--wide {
    max-width: 600px;
}

.modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-3);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-xs);
}

.modal__close:hover { background: var(--glass); color: var(--text); }

.modal__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.modal__subtitle {
    color: var(--text-3);
    font-size: 0.85rem;
    margin-bottom: 28px;
}

.modal__switch {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-3);
}

.modal__switch a { color: var(--accent); font-weight: 600; }

/* ============================================
   Toast
   ============================================ */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 3000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-2);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 16px 24px;
    font-size: 0.85rem;
    box-shadow: var(--shadow);
    animation: toastIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 250px;
}

.toast--success { border-left: 3px solid var(--green); }
.toast--error { border-left: 3px solid var(--red); }
.toast--info { border-left: 3px solid var(--blue); }

@keyframes toastIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ============================================
   Reviews
   ============================================ */
.review {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-bottom: 12px;
}

.review__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.review__avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    color: white;
}

.review__name { font-weight: 600; font-size: 0.9rem; }
.review__date { font-size: 0.75rem; color: var(--text-3); }
.review__text { color: var(--text-2); font-size: 0.85rem; line-height: 1.6; }

/* ============================================
   Works Gallery
   ============================================ */
.works-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.work-card {
    border-radius: var(--radius-sm);
    overflow: hidden;
    position: relative;
    cursor: pointer;
    aspect-ratio: 1;
    background: var(--bg-3);
}

.work-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.work-card:hover img { transform: scale(1.05); }

.work-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.work-card:hover .work-card__overlay { opacity: 1; }

.work-card__title {
    font-weight: 600;
    font-size: 0.9rem;
}

.work-card__tools {
    font-size: 0.7rem;
    color: var(--text-3);
    margin-top: 4px;
}

/* ============================================
   Booking list
   ============================================ */
.booking-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    margin-bottom: 12px;
    transition: var(--transition);
}

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

.booking-item__date {
    text-align: center;
    background: var(--glass);
    border-radius: var(--radius-xs);
    padding: 12px 16px;
    min-width: 70px;
}

.booking-item__day {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
}

.booking-item__month {
    font-size: 0.7rem;
    color: var(--text-3);
    text-transform: uppercase;
}

.booking-item__info { flex: 1; }
.booking-item__title { font-weight: 600; margin-bottom: 4px; }
.booking-item__meta { font-size: 0.8rem; color: var(--text-3); }

.booking-item__status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
}

.booking-item__status--pending { background: rgba(245, 158, 11, 0.15); color: var(--orange); }
.booking-item__status--confirmed { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.booking-item__status--completed { background: rgba(99, 102, 241, 0.15); color: var(--accent-2); }
.booking-item__status--cancelled { background: rgba(239, 68, 68, 0.15); color: var(--red); }

/* ============================================
   Empty State
   ============================================ */
.empty {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-3);
}

.empty__icon { font-size: 3rem; margin-bottom: 16px; }
.empty__title { font-size: 1.1rem; font-weight: 600; color: var(--text-2); margin-bottom: 8px; }
.empty__text { font-size: 0.85rem; margin-bottom: 24px; }

/* ============================================
   Notifications Page
   ============================================ */
.notif-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.notif-item:hover { background: var(--bg-card-hover); }
.notif-item.unread { border-left: 3px solid var(--accent); }
.notif-item__icon { font-size: 1.5rem; }
.notif-item__body { flex: 1; }
.notif-item__title { font-weight: 600; font-size: 0.9rem; margin-bottom: 4px; }
.notif-item__text { font-size: 0.8rem; color: var(--text-2); }
.notif-item__time { font-size: 0.7rem; color: var(--text-3); margin-top: 4px; }

/* ============================================
   Schedule Editor (Creator Dashboard)
   ============================================ */
.schedule-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.schedule-day {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
}

.schedule-day__name {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.schedule-day__slots {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .course-detail {
        grid-template-columns: 1fr;
    }
    .course-detail__sidebar {
        position: static;
    }
    .profile__header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    .profile__stats { justify-content: center; }
    .profile__actions { justify-content: center; }
    .dashboard { grid-template-columns: 1fr; }
    .dashboard__sidebar { position: static; }
    .dashboard__nav {
        display: flex;
        overflow-x: auto;
        padding: 4px;
    }
    .dashboard__nav-item { white-space: nowrap; }
}

@media (max-width: 768px) {
    .nav__links { display: none; }
    .nav__burger { display: flex; }
    .nav__links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--nav-h);
        left: 0;
        right: 0;
        background: var(--bg-2);
        padding: 16px;
        border-bottom: 1px solid var(--glass-border);
    }
    .hero { padding: 40px 16px; }
    .hero__stats { gap: 24px; }
    .hero__stat-num { font-size: 1.5rem; }
    .section { padding: 40px 16px; }
    .grid--3 { grid-template-columns: 1fr; }
    .grid--2 { grid-template-columns: 1fr; }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }
    .profile__header { padding: 24px 16px; }
    .schedule-grid { grid-template-columns: repeat(2, 1fr); }
    .filters { flex-direction: column; }
    .filter-search { min-width: auto; }
    .modal__content { padding: 24px; margin: 16px; }
    .course-detail { padding: 24px 16px; gap: 24px; }
    .dashboard { padding: 24px 16px; gap: 16px; }
}

@media (max-width: 480px) {
    .hero__title { font-size: 1.6rem; }
    .hero__actions { flex-direction: column; align-items: center; }
    .role-select { grid-template-columns: 1fr; }
    .stat-cards { grid-template-columns: 1fr; }
    .creator-card__footer { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ============================================
   WEB3 / WALLET / TOKEN STYLES
   ============================================ */
.grid--4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 900px) { .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .grid--4 { grid-template-columns: 1fr; } }

.card--featured {
    position: relative;
    border: 2px solid var(--accent) !important;
    box-shadow: 0 0 24px rgba(var(--accent-rgb, 79,70,229), 0.15);
}
.card--featured::before {
    content: '⭐ Популярне';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    font-size: .7rem;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 999px;
    white-space: nowrap;
}

/* Web3 dashboard nav items highlight */
.dashboard__nav-item[data-section="wallet"] .dashboard__nav-icon,
.dashboard__nav-item[data-section="staking"] .dashboard__nav-icon {
    font-size: 1.1rem;
}

/* Token badge in nav */
#navBalance {
    font-size: .75rem;
    font-weight: 700;
    color: var(--accent);
}

/* Wallet transaction list smooth */
.wallet-tx-item {
    transition: background 0.15s;
}
.wallet-tx-item:hover {
    background: rgba(var(--accent-rgb, 79,70,229), 0.04);
}

/* Payment option buttons */
.pay-option-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    font-size: .95rem;
    color: var(--text-1);
}
.pay-option-btn:hover {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb, 79,70,229), 0.05);
}

/* NFT certificate card glow */
.nft-cert-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
    transition: all 0.25s;
    position: relative;
    overflow: hidden;
}
.nft-cert-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--accent-rgb,79,70,229),0.08), transparent 50%);
    pointer-events: none;
}
.nft-cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(var(--accent-rgb,79,70,229),0.12);
}

/* Staking tier card */
.staking-tier {
    text-align: center;
    padding: 24px;
    transition: all 0.2s;
}
.staking-tier:hover {
    border-color: var(--accent);
}

/* Token stats grid */
.token-stats .stat-card {
    text-align: center;
}

/* Tip preset buttons */
.tip-presets {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.tip-presets .btn {
    min-width: 48px;
}

/* Referral link copy animation */
@keyframes copied {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Smooth modal transitions for Web3 modals */
#transferModal .card,
#payModal .card,
#tipModal .card {
    animation: modalIn 0.2s ease-out;
}
@keyframes modalIn {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* ============================================
   CATEGORY CARDS
   ============================================ */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}
.category-card {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}
.category-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}
.category-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 12px 32px rgba(0,0,0,0.15);
}
.category-card:hover::before { opacity: 1; }
.category-card__icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 12px;
}
.category-card__title {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 6px;
    color: var(--text-1);
}
.category-card__desc {
    font-size: 0.8rem;
    color: var(--text-3);
    line-height: 1.4;
}

/* ============================================
   HERO GLOW
   ============================================ */
.hero {
    position: relative;
    overflow: hidden;
}
.hero__bg-glow {
    position: absolute;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(var(--accent-rgb, 79,70,229), 0.15), transparent 70%);
    top: -200px; right: -100px;
    pointer-events: none;
    animation: glowFloat 6s ease-in-out infinite alternate;
}
@keyframes glowFloat {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-30px, 20px) scale(1.1); }
}

/* ============================================
   LESSON VIEWER
   ============================================ */
.lesson-viewer {
    display: flex;
    min-height: calc(100vh - 70px);
    margin: -24px -16px;
}

/* Sidebar */
.lesson-sidebar {
    width: 320px;
    min-width: 320px;
    background: var(--bg-card);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    max-height: calc(100vh - 70px);
    position: sticky;
    top: 70px;
}
.lesson-sidebar__header {
    padding: 16px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.lesson-sidebar__back {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.lesson-sidebar__back:hover { text-decoration: underline; }
.lesson-sidebar__close {
    display: none;
    background: none;
    border: none;
    color: var(--text-2);
    font-size: 1.2rem;
    cursor: pointer;
}
.lesson-sidebar__progress {
    padding: 12px 16px;
    border-bottom: 1px solid var(--glass-border);
}
.lesson-sidebar__progress-bar {
    height: 6px;
    background: var(--bg-3);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 6px;
}
.lesson-sidebar__progress-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 3px;
    transition: width 0.5s ease;
}
.lesson-sidebar__progress-text {
    font-size: 0.75rem;
    color: var(--text-3);
}
.lesson-sidebar__nav {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}
.lesson-sidebar__module {
    padding: 8px 0;
}
.lesson-sidebar__module-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-3);
    padding: 8px 16px 4px;
}
.lesson-sidebar__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text-2);
    font-size: 0.85rem;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}
.lesson-sidebar__item:hover {
    background: var(--bg-3);
    color: var(--text-1);
}
.lesson-sidebar__item--active {
    background: rgba(var(--accent-rgb, 79,70,229), 0.1);
    color: var(--accent);
    border-left-color: var(--accent);
    font-weight: 600;
}
.lesson-sidebar__item--done {
    color: var(--green);
}
.lesson-sidebar__item-icon {
    font-size: 0.9rem;
    flex-shrink: 0;
}
.lesson-sidebar__item-title {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.lesson-sidebar__item-dur {
    font-size: 0.7rem;
    color: var(--text-3);
    flex-shrink: 0;
}

/* Main content */
.lesson-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}
.lesson-topbar {
    display: none;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 70px;
    z-index: 10;
}
.lesson-topbar__menu {
    background: var(--bg-3);
    border: 1px solid var(--glass-border);
    color: var(--text-2);
    padding: 6px 12px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 0.85rem;
    white-space: nowrap;
}
.lesson-topbar__module {
    font-size: 0.85rem;
    color: var(--text-3);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Content */
.lesson-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 32px;
    width: 100%;
    box-sizing: border-box;
}
.lesson-content__header {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}
.lesson-content__type,
.lesson-content__duration {
    font-size: 0.8rem;
    color: var(--text-3);
    background: var(--bg-3);
    padding: 4px 10px;
    border-radius: 20px;
}
.lesson-content__title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    line-height: 1.2;
    margin-bottom: 8px;
    color: var(--text-1);
}
.lesson-content__desc {
    color: var(--text-2);
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.5;
}

/* Video embed */
.lesson-video {
    margin: 24px 0;
    position: relative;
    padding-bottom: 56.25%;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--bg-3);
}
.lesson-video iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
}

/* Body content styles */
.lesson-content__body h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin: 32px 0 12px;
    color: var(--text-1);
    line-height: 1.3;
}
.lesson-content__body h2:first-child { margin-top: 0; }
.lesson-content__body h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin: 24px 0 8px;
    color: var(--text-1);
}
.lesson-content__body p {
    color: var(--text-2);
    line-height: 1.7;
    margin-bottom: 12px;
    font-size: 0.95rem;
}
.lesson-content__body ul,
.lesson-content__body ol {
    margin: 8px 0 16px 20px;
    color: var(--text-2);
    line-height: 1.7;
    font-size: 0.95rem;
}
.lesson-content__body li {
    margin-bottom: 6px;
}
.lesson-content__body li strong {
    color: var(--text-1);
}

/* Callout boxes */
.lesson-callout {
    display: flex;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-xs);
    margin: 16px 0;
    border-left: 4px solid;
}
.lesson-callout__icon {
    font-size: 1.3rem;
    flex-shrink: 0;
    line-height: 1;
}
.lesson-callout strong {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 4px;
}
.lesson-callout p { margin: 0; font-size: 0.9rem; }
.lesson-callout--tip {
    background: rgba(var(--accent-rgb, 79,70,229), 0.08);
    border-color: var(--accent);
}
.lesson-callout--tip strong { color: var(--accent); }
.lesson-callout--warn {
    background: rgba(255, 170, 0, 0.08);
    border-color: #ffa500;
}
.lesson-callout--warn strong { color: #ffa500; }
.lesson-callout--practice {
    background: rgba(16, 185, 129, 0.08);
    border-color: var(--green);
}
.lesson-callout--practice strong { color: var(--green); }

/* Prompt block */
.lesson-prompt {
    background: var(--bg-3);
    border-radius: var(--radius-xs);
    padding: 16px;
    margin: 16px 0;
    border: 1px solid var(--glass-border);
}
.lesson-prompt__label {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 8px;
    letter-spacing: 0.05em;
}
.lesson-prompt code {
    display: block;
    font-family: 'SF Mono', 'Consolas', monospace;
    font-size: 0.85rem;
    color: var(--text-1);
    line-height: 1.6;
    word-break: break-all;
    white-space: pre-wrap;
}

/* Steps */
.lesson-steps {
    margin: 16px 0;
}
.lesson-step {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 12px 0;
    border-bottom: 1px solid var(--glass-border);
}
.lesson-step:last-child { border-bottom: none; }
.lesson-step__num {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gradient);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.lesson-step > div {
    color: var(--text-2);
    font-size: 0.9rem;
    line-height: 1.5;
}
.lesson-step strong { color: var(--text-1); }

/* Lesson actions */
.lesson-actions {
    text-align: center;
    padding: 24px 32px;
    border-top: 1px solid var(--glass-border);
}
.lesson-actions__done {
    font-size: 1rem;
    color: var(--green);
    font-weight: 600;
}

/* Lesson navigation */
.lesson-nav {
    display: flex;
    justify-content: space-between;
    padding: 20px 32px;
    border-top: 1px solid var(--glass-border);
    gap: 16px;
}
.lesson-nav__btn {
    text-decoration: none;
    color: var(--text-2);
    font-size: 0.85rem;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xs);
    transition: all 0.15s;
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.lesson-nav__btn:hover {
    color: var(--accent);
    border-color: var(--accent);
}

/* Clickable lesson items in course detail */
.lesson-item--clickable {
    cursor: pointer;
    transition: background 0.15s;
}
.lesson-item--clickable:hover {
    background: rgba(var(--accent-rgb, 79,70,229), 0.06);
}
.lesson-item--locked {
    opacity: 0.6;
}

/* ========================================
   Discussion Section
   ======================================== */
.lesson-discussion {
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid var(--glass-border);
}
.lesson-discussion__title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 20px;
}
.lesson-discussion__form {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.lesson-discussion__input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-1);
    font-size: 0.9rem;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
}
.lesson-discussion__input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 79,70,229), 0.15);
}
.lesson-discussion__form .btn {
    align-self: flex-end;
}
.lesson-discussion__login {
    color: var(--text-3);
    font-size: 0.85rem;
    margin-bottom: 16px;
}
.lesson-discussion__login a {
    color: var(--accent);
    text-decoration: underline;
}
.lesson-discussion__empty {
    color: var(--text-3);
    text-align: center;
    padding: 24px;
    font-size: 0.9rem;
}
.lesson-discussion__list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Comment */
.lesson-comment {
    padding: 16px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
}
.lesson-comment--pinned {
    border-color: var(--accent);
    background: rgba(var(--accent-rgb, 79,70,229), 0.05);
}
.lesson-comment__header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}
.lesson-comment__avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.lesson-comment__meta {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}
.lesson-comment__name {
    font-weight: 600;
    font-size: 0.85rem;
}
.lesson-comment__badge {
    display: inline-block;
    font-size: 0.65rem;
    padding: 1px 6px;
    border-radius: 9999px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    vertical-align: middle;
    margin-left: 4px;
}
.lesson-comment__badge--admin {
    background: #ef4444;
}
.lesson-comment__date {
    font-size: 0.75rem;
    color: var(--text-3);
}
.lesson-comment__actions {
    display: flex;
    gap: 4px;
}
.lesson-comment__action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.8rem;
    padding: 4px;
    opacity: 0.5;
    transition: opacity 0.15s;
}
.lesson-comment__action-btn:hover {
    opacity: 1;
}
.lesson-comment__pin-icon {
    font-size: 0.8rem;
}
.lesson-comment__body {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-2);
    white-space: pre-wrap;
}

/* ========================================
   Certificate Card
   ======================================== */
.cert-card__icon {
    font-size: 3rem;
    margin-bottom: 12px;
}
.cert-card__title {
    font-weight: 700;
    font-family: var(--font-heading);
    margin-bottom: 8px;
    font-size: 1rem;
}
.cert-card__uid {
    font-size: 0.75rem;
    color: var(--text-3);
    word-break: break-all;
    margin-bottom: 4px;
}
.cert-card__date {
    font-size: 0.75rem;
    color: var(--text-3);
}