/* ============================================================
   T2 CENTER - Premium Landing Page Styles
   ============================================================ */

.landing-body {
    background-color: var(--bg-body);
    color: var(--text-main);
    font-family: inherit;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.landing-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Header / Nav --- */
.landing-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}
.landing-body[data-theme="dark"] .landing-header {
    background: rgba(20, 20, 20, 0.85);
}

.landing-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.landing-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.landing-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
}

.landing-logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.landing-nav-links {
    display: flex;
    gap: 32px;
}

.landing-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.landing-link:hover {
    color: var(--settings-primary);
}

.landing-nav-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* --- Hero Section --- */
.landing-hero {
    position: relative;
    padding: 120px 0 100px;
    background: linear-gradient(135deg, var(--settings-secondary) 0%, var(--settings-primary) 100%);
    color: #ffffff;
    text-align: center;
    overflow: hidden;
}

/* Glassmorphism accents */
.landing-hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -20%;
    width: 80%; height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 60%);
    transform: rotate(-30deg);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -1px;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    opacity: 0.9;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* --- Common Section Styles --- */
.landing-section {
    padding: 80px 0;
}

.landing-section.bg-light {
    background-color: var(--bg-panel);
}

.section-header {
    margin-bottom: 48px;
}

.text-center { text-align: center; }

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-main);
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
}

/* --- Grids --- */
.landing-grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 32px;
}

.landing-grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}

/* --- Cards --- */
.landing-card {
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}
.landing-section.bg-light .landing-card {
    background: var(--bg-body);
}
.landing-section:not(.bg-light) .landing-card {
    background: var(--bg-panel);
}

.landing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}
.landing-body[data-theme="dark"] .landing-card:hover {
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

/* Course Card */
.course-card .card-header {
    padding: 24px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.course-card .card-icon {
    width: 48px;
    height: 48px;
    background: rgba(var(--settings-primary-rgb, 77, 174, 109), 0.1);
    color: var(--settings-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.course-card .card-price {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--settings-primary);
}

.course-card .card-body {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-card h3 {
    font-size: 1.25rem;
    margin: 0 0 12px;
    color: var(--text-main);
}

.text-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.95rem;
}
.text-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.course-card .card-meta {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
}
.meta-item i { width: 14px; text-align: center; }

/* Pack Card */
.pack-card {
    position: relative;
    border-color: var(--settings-primary);
    box-shadow: 0 10px 30px rgba(var(--settings-primary-rgb, 77, 174, 109), 0.1);
}

.pack-badge {
    position: absolute;
    top: 16px; right: -32px;
    background: var(--settings-primary);
    color: #fff;
    padding: 4px 40px;
    font-size: 0.75rem;
    font-weight: 700;
    transform: rotate(45deg);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.pack-card .card-body { padding: 32px 24px 24px; flex: 1; }

.pack-price-wrap {
    margin-bottom: 16px;
}
.pack-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--settings-primary);
}

.pack-includes-list {
    list-style: none; padding: 0; margin: 24px 0 0;
    display: flex; flex-direction: column; gap: 12px;
}
.pack-includes-list li {
    font-size: 0.95rem;
    display: flex; align-items: flex-start; gap: 10px;
    color: var(--text-main);
}
.pack-includes-list i { margin-top: 4px; }

.pack-card .card-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-panel);
}

/* Teacher Card */
.landing-teacher-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-body);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: transform 0.3s;
}
.landing-teacher-card:hover {
    transform: translateY(-5px);
}

.teacher-avatar {
    width: 100px; height: 100px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-panel);
    border: 4px solid var(--bg-body);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.teacher-avatar img { width: 100%; height: 100%; object-fit: cover; }
.teacher-avatar-placeholder {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem; font-weight: 700;
    color: var(--settings-primary);
    background: rgba(var(--settings-primary-rgb, 77, 174, 109), 0.1);
}

.teacher-info h3 { margin: 0 0 4px; font-size: 1.125rem; color: var(--text-main); }
.teacher-info .teacher-specialty { font-size: 0.875rem; color: var(--settings-primary); font-weight: 500; }


/* --- CTA Section --- */
.landing-cta-section {
    padding: 100px 0;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-color);
}
.landing-cta-section h2 { font-size: 2.5rem; margin-bottom: 16px; }

/* --- Register Page --- */
.landing-register-page {
    padding: 60px 24px 100px;
}
.back-link {
    color: var(--text-muted); text-decoration: none; font-weight: 500;
    transition: color 0.2s;
}
.back-link:hover { color: var(--settings-primary); }


/* --- Footer --- */
.landing-footer {
    background: var(--bg-body);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 24px;
}

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

.landing-footer-desc {
    margin-top: 16px; color: var(--text-muted); max-width: 400px;
}

.landing-footer-contact h3 { font-size: 1.125rem; margin-bottom: 20px; }
.landing-contact-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.landing-contact-list li { display: flex; gap: 12px; color: var(--text-muted); font-size: 0.95rem; }
.landing-contact-list i { color: var(--settings-primary); margin-top: 4px; width: 16px; text-align: center;}

.landing-footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --- Utilities --- */
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 16px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 16px; }
.mt-4 { margin-top: 24px; }
.py-5 { padding-top: 40px; padding-bottom: 40px; }
.px-4 { padding-left: 24px; padding-right: 24px; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .landing-nav-links { display: none; }
    .hero-title { font-size: 2.5rem; }
    .landing-hero { padding: 80px 0 60px; }
    .landing-footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-actions { flex-direction: column; }
}