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

:root {
    --primary-color: #ff0000;
    --primary-hover: #cc0000;
    --bg-color: #0f0f0f;
    --card-bg: #1e1e1e;
    --text-color: #ffffff;
    --text-secondary: #aaaaaa;
    --border-color: #333333;
    --success-color: #2ba640;
    --pending-color: #f0ab00;
    --downloading-color: #3b82f6;
    --failed-color: #ef4444;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 30px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 30px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 8px;
}

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

/* Форма добавления видео */
.add-video-section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 30px;
}

.add-video-section h2 {
    margin-bottom: 16px;
    font-size: 1.25rem;
}

.video-form .form-group {
    display: flex;
    gap: 12px;
}

.video-form input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.video-form input:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* Кнопки */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

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

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Информация о лимите загрузок */
.download-limit-info {
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.download-limit-info #downloadsRemaining {
    font-weight: 600;
}

/* Сообщение о результате */
.message {
    margin-top: 12px;
    padding: 12px;
    border-radius: 8px;
    display: none;
}

.message.success {
    display: block;
    background: rgba(43, 166, 64, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.message.error {
    display: block;
    background: rgba(239, 68, 68, 0.2);
    color: var(--failed-color);
    border: 1px solid var(--failed-color);
}

/* Секция видео */
.videos-section {
    margin-top: 30px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 1.25rem;
}

/* Вкладки фильтров */
.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-secondary);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.9rem;
}

.tab-btn:hover {
    background: var(--border-color);
    color: var(--text-color);
}

.tab-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Сетка видео */
.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

/* Карточка видео */
.video-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.video-card.disabled {
    cursor: not-allowed;
    opacity: 0.7;
}

.video-card.disabled:hover {
    transform: none;
    box-shadow: none;
}

.video-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: var(--bg-color);
    overflow: hidden;
}

.video-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.video-info {
    padding: 16px;
}

.video-title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Статусы */
.status-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-completed {
    background: rgba(43, 166, 64, 0.2);
    color: var(--success-color);
}

.status-pending {
    background: rgba(240, 171, 0, 0.2);
    color: var(--pending-color);
}

.status-downloading {
    background: rgba(59, 130, 246, 0.2);
    color: var(--downloading-color);
}

.status-failed {
    background: rgba(239, 68, 68, 0.2);
    color: var(--failed-color);
}

/* Пустое состояние */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--text-color);
}

/* Загрузка */
.loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Модальное окно */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 90%;
    max-width: 900px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.modal-header h3 {
    font-size: 1.1rem;
    max-width: 80%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-icon {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--card-bg);
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    white-space: nowrap;
}

.btn-icon:hover {
    background: var(--border-color);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

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

.modal-body {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    background: #000;
    flex-grow: 1;
    min-height: 400px;
}

.modal-body [data-shaka-player-container] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.modal-body video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Адаптивность */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.75rem;
    }

    .video-form .form-group {
        flex-direction: column;
    }

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

    .modal-content {
        width: 95%;
    }

    .modal-actions {
        gap: 4px;
    }

    .btn-icon {
        padding: 6px 10px;
        font-size: 0.85rem;
    }
}