/**
 * LMS — премиум дизайн (коммерческий продукт)
 * Красивый и стильный интерфейс
 */

/* === Контейнер LMS === */
.lms-premium .container { max-width: 1200px; }

/* === Hero секции === */
.lms-premium .train-hero,
.lms-premium .lms-dashboard-hero {
    padding: 6rem 0 4rem;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(6, 182, 212, 0.15), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(124, 58, 237, 0.08), transparent),
        radial-gradient(ellipse 60% 40% at 0% 0%, rgba(59, 130, 246, 0.08), transparent),
        var(--bg-dark);
}
[data-theme="light"] .lms-premium .train-hero,
[data-theme="light"] .lms-premium .lms-dashboard-hero {
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(124, 58, 237, 0.08), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(59, 130, 246, 0.05), transparent),
        linear-gradient(180deg, var(--bg-alt) 0%, var(--bg-dark) 100%);
}
.lms-premium .train-hero-badge,
.lms-premium .lms-dashboard-hero .lms-breadcrumb {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    opacity: 0.9;
}
.lms-premium .train-hero h1,
.lms-premium .lms-dashboard-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}
.lms-premium .train-hero-subtitle,
.lms-premium .lms-dashboard-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 560px;
}
.lms-premium .lms-catalog-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}
.lms-premium .lms-catalog-actions .btn {
    font-weight: 500;
    padding: 0.6rem 1.25rem;
    border-radius: 10px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.lms-premium .lms-catalog-actions .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(6, 182, 212, 0.2);
}
[data-theme="light"] .lms-premium .lms-catalog-actions .btn:hover {
    box-shadow: 0 8px 24px rgba(124, 58, 237, 0.2);
}

/* === Карточки курсов (каталог) === */
.lms-premium .lms-catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.lms-premium .lms-course-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s;
    display: flex;
    flex-direction: column;
}
.lms-premium .lms-course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: rgba(6, 182, 212, 0.3);
}
[data-theme="light"] .lms-premium .lms-course-card:hover {
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
    border-color: rgba(124, 58, 237, 0.3);
}
.lms-premium .lms-course-card.has-image .train-card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
}
.lms-premium .lms-course-card.has-image .train-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.lms-premium .lms-course-card:hover .train-card-image img {
    transform: scale(1.03);
}
.lms-premium .lms-course-card .train-card-header {
    padding: 1rem 1.25rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}
.lms-premium .train-type {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    padding: 0.25rem 0.6rem;
    background: var(--accent-muted);
    border-radius: 8px;
}
.lms-premium .train-registered-badge {
    font-size: 0.75rem;
    font-weight: 500;
    color: #22c55e;
    background: rgba(34, 197, 94, 0.15);
    padding: 0.25rem 0.6rem;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}
.lms-premium .lms-course-card .train-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0.75rem 1.25rem 0;
    line-height: 1.4;
    letter-spacing: -0.01em;
}
.lms-premium .lms-course-card .train-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0.5rem 1.25rem 0;
    line-height: 1.5;
    flex: 1;
}
.lms-premium .lms-course-card-meta {
    display: flex;
    gap: 1rem;
    padding: 1rem 1.25rem 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.lms-premium .lms-course-card-meta span:not(:last-child)::after {
    content: '·';
    margin-left: 1rem;
    opacity: 0.5;
}
.lms-premium .train-card-actions {
    padding: 1.25rem;
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
    border-top: 1px solid var(--border);
}
.lms-premium .train-card-actions .btn {
    flex: 1;
    justify-content: center;
    font-weight: 500;
    border-radius: 10px;
    padding: 0.65rem 1rem;
}
.lms-premium .train-card-actions .btn-primary {
    background: var(--gradient);
    border: none;
}

/* === Фильтры и поиск === */
.lms-premium .lms-filters {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
}
.lms-premium .lms-search-form {
    flex: 1;
    min-width: 240px;
}
.lms-premium .lms-search-input {
    padding: 0.6rem 1rem;
    border-radius: 10px;
    font-size: 0.95rem;
    width: 100%;
}
.lms-premium .lms-format-tabs {
    display: flex;
    gap: 0.35rem;
}
.lms-premium .lms-format-tab {
    padding: 0.5rem 1rem;
    border-radius: 10px;
    font-weight: 500;
    transition: all 0.2s;
}
.lms-premium .lms-format-tab.active {
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(6, 182, 212, 0.2);
}

/* === Dashboard === */
.lms-premium .lms-stats-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
}
.lms-premium .lms-stat-card {
    padding: 1.25rem 1.5rem;
    border-radius: 16px;
    min-width: 140px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border);
}
.lms-premium .lms-stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}
.lms-premium .lms-stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.lms-premium .lms-stat-card.lms-stat-points { background: linear-gradient(135deg, rgba(6, 182, 212, 0.1) 0%, rgba(6, 182, 212, 0.02) 100%); border-color: rgba(6, 182, 212, 0.3); }
.lms-premium .lms-stat-card.lms-stat-streak { background: linear-gradient(135deg, rgba(249, 115, 22, 0.1) 0%, rgba(249, 115, 22, 0.02) 100%); border-color: rgba(249, 115, 22, 0.3); }
.lms-premium .lms-stat-card.lms-stat-badges { background: linear-gradient(135deg, rgba(168, 85, 247, 0.1) 0%, rgba(168, 85, 247, 0.02) 100%); border-color: rgba(168, 85, 247, 0.3); }
.lms-premium .lms-stat-card.lms-stat-rank { background: linear-gradient(135deg, rgba(34, 197, 94, 0.1) 0%, rgba(34, 197, 94, 0.02) 100%); border-color: rgba(34, 197, 94, 0.3); }
.lms-premium .lms-dash-course-card {
    padding: 1.5rem;
    border-radius: 14px;
    transition: all 0.25s;
}
.lms-premium .lms-dash-course-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
.lms-premium .lms-leaderboard-list li {
    padding: 0.75rem 1rem;
    border-radius: 10px;
    transition: background 0.2s;
}
.lms-premium .lms-badge-item {
    border-radius: 12px;
    padding: 0.6rem 1rem;
    transition: transform 0.2s;
}
.lms-premium .lms-badge-item:hover {
    transform: scale(1.02);
}

/* === Лендинг курса === */
.lms-premium .lms-landing-hero {
    padding: 5rem 0 4rem;
}
.lms-premium .lms-landing-image {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    margin-bottom: 1.5rem;
}
.lms-premium .lms-landing-title {
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}
.lms-premium .lms-landing-card {
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    padding: 1.75rem;
}
.lms-premium .lms-curriculum-module {
    border-radius: 12px;
    transition: border-color 0.2s;
}
.lms-premium .lms-curriculum-module:hover {
    border-color: rgba(6, 182, 212, 0.3);
}

/* === Мои курсы === */
.lms-premium .lms-my-card {
    border-radius: 16px;
    overflow: hidden;
    transition: transform 0.25s, box-shadow 0.25s;
}
.lms-premium .lms-my-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12);
}
.lms-premium .lms-my-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

/* === Пути обучения === */
.lms-premium .lms-path-card {
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.25s;
}
.lms-premium .lms-path-card:hover {
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}
.lms-premium .lms-path-image {
    border-radius: 12px;
}

/* === Плеер курса === */
.lms-premium .lms-player-header {
    padding: 1rem 0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}
.lms-premium .lms-sidebar {
    border-radius: 14px;
    padding: 1.25rem;
}
.lms-premium .lms-lesson {
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.04);
}
.lms-premium .lms-lesson h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.lms-premium .lms-video-wrap video {
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

/* === Сертификат === */
.lms-premium .lms-cert-card {
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

/* === Отзывы, рейтинг, избранное === */
.lms-rating-badge { font-size: 0.9rem; color: #f59e0b; font-weight: 600; }
.lms-like-btn { background: none; border: none; font-size: 1.25rem; cursor: pointer; padding: 0.25rem; color: var(--text-muted); transition: color 0.2s; }
.lms-like-btn:hover, .lms-like-btn.liked { color: #ef4444; }
.lms-reviews-section { margin-top: 2rem; }
.lms-review-form { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }
.lms-review-form select { padding: 0.5rem; border-radius: var(--radius); width: fit-content; }
.lms-review-form textarea { padding: 0.75rem; border-radius: var(--radius); resize: vertical; }
.lms-reviews-list { display: flex; flex-direction: column; gap: 1rem; }
.lms-review-item { padding: 0.75rem; background: var(--bg-input); border-radius: var(--radius); }
.lms-review-rating { color: #f59e0b; margin-right: 0.5rem; }
.lms-lesson-locked { color: var(--text-muted); font-size: 0.9rem; display: block; padding: 0.35rem 0; }
.lms-like-btn-card { position: absolute; top: 0.75rem; right: 0.75rem; z-index: 2; background: rgba(0,0,0,0.5); border: none; font-size: 1.25rem; cursor: pointer; padding: 0.35rem; border-radius: 8px; color: #fff; transition: all 0.2s; }
.lms-like-btn-card:hover, .lms-like-btn-card.liked { color: #ef4444; background: rgba(239,68,68,0.3); }
.lms-premium .lms-course-card { position: relative; }

/* === Quiz, notes, comments === */
.lms-premium .lms-quiz-block {
    border-radius: 14px;
    padding: 1.75rem;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}
.lms-premium .lms-notes-block {
    border-radius: 12px;
}
.lms-premium .lms-comments-block {
    border-radius: 14px;
    padding: 1.75rem;
}
.lms-premium .lms-prereqs {
    border-radius: 12px;
}

/* === Empty state === */
.lms-premium .lms-empty-state {
    padding: 4rem 2rem;
    background: var(--bg-card);
    border: 1px dashed var(--border);
    border-radius: 16px;
}
.lms-premium .lms-empty-state p {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* === Кнопки === */
.lms-premium .btn-primary {
    background: var(--gradient);
    border: none;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.35);
}
[data-theme="light"] .lms-premium .btn-primary {
    box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
}
.lms-premium .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.4);
}
[data-theme="light"] .lms-premium .btn-primary:hover {
    box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
}
.lms-premium .btn-outline {
    font-weight: 500;
    border-radius: 10px;
}

/* === Пути: секция контента === */
.lms-premium .train-section {
    padding: 3rem 0;
}
.lms-premium .paths-section .container {
    max-width: 900px;
}
.lms-premium .paths-section .train-empty {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}
.lms-premium .paths-section .train-empty a {
    color: var(--accent);
}

/* === Плавные анимации === */
@media (prefers-reduced-motion: no-preference) {
    .lms-premium .lms-course-card,
    .lms-premium .lms-my-card,
    .lms-premium .lms-path-card,
    .lms-premium .lms-dash-course-card {
        animation: lms-fade-up 0.5s ease both;
    }
    .lms-premium .lms-catalog-grid .lms-course-card:nth-child(1) { animation-delay: 0.05s; }
    .lms-premium .lms-catalog-grid .lms-course-card:nth-child(2) { animation-delay: 0.1s; }
    .lms-premium .lms-catalog-grid .lms-course-card:nth-child(3) { animation-delay: 0.15s; }
    .lms-premium .lms-catalog-grid .lms-course-card:nth-child(4) { animation-delay: 0.2s; }
    .lms-premium .lms-catalog-grid .lms-course-card:nth-child(5) { animation-delay: 0.25s; }
    .lms-premium .lms-catalog-grid .lms-course-card:nth-child(6) { animation-delay: 0.3s; }
}
@keyframes lms-fade-up {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}