/*
 * Стили Mini App с поддержкой Telegram-тем.
 * Используются CSS-переменные Telegram WebApp.
 */

/* === Сброс и базовые стили === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
        Ubuntu, Cantarell, sans-serif;
    background-color: var(--tg-theme-bg-color, #ffffff);
    color: var(--tg-theme-text-color, #000000);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* === Контейнер приложения === */
.app {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
    padding-bottom: 32px;
}

/* === Заголовок === */
.header {
    text-align: center;
    padding: 12px 0 16px;
}

.header h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--tg-theme-text-color, #000000);
}

/* === Табы === */
.tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    border-radius: 12px;
    padding: 4px;
}

.tab {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: 10px;
    background: transparent;
    color: var(--tg-theme-hint-color, #999999);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.tab.active {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* === Поля ввода === */
.tab-content {
    display: none;
    animation: fadeIn 0.2s ease;
}

.tab-content.active {
    display: block;
}

.input-group {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
}

.input-group input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--tg-theme-secondary-bg-color, #e0e0e0);
    border-radius: 12px;
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    color: var(--tg-theme-text-color, #000000);
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s ease;
}

.input-group input::placeholder {
    color: var(--tg-theme-hint-color, #999999);
}

.input-group input:focus {
    border-color: var(--tg-theme-button-color, #3390ec);
}

/* === Кнопки === */
.btn {
    padding: 12px 20px;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.btn-primary {
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
}

.btn-primary:active {
    transform: scale(0.96);
    opacity: 0.9;
}

.btn-format {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 8px;
    border-radius: 12px;
    background: var(--tg-theme-secondary-bg-color, #f0f0f0);
    color: var(--tg-theme-text-color, #000000);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
}

.btn-format:active {
    transform: scale(0.98);
    background: var(--tg-theme-button-color, #3390ec);
    color: var(--tg-theme-button-text-color, #ffffff);
}

.btn-format .format-label {
    font-weight: 600;
}

.btn-format .format-size {
    font-size: 13px;
    opacity: 0.7;
}

/* === Индикатор загрузки === */
.loader {
    text-align: center;
    padding: 40px 0;
}

.spinner {
    width: 36px;
    height: 36px;
    margin: 0 auto 12px;
    border: 3px solid var(--tg-theme-secondary-bg-color, #e0e0e0);
    border-top-color: var(--tg-theme-button-color, #3390ec);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loader p {
    color: var(--tg-theme-hint-color, #999999);
    font-size: 14px;
}

/* === Ошибка === */
.error {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.3);
    border-radius: 12px;
    padding: 14px 16px;
    margin-bottom: 16px;
}

.error p {
    color: #ff3b30;
    font-size: 14px;
}

/* === Результаты поиска === */
.section-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--tg-theme-text-color, #000000);
}

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

.video-card {
    display: flex;
    gap: 12px;
    padding: 10px;
    border-radius: 12px;
    background: var(--tg-theme-secondary-bg-color, #f5f5f5);
    cursor: pointer;
    transition: all 0.2s ease;
}

.video-card:active {
    transform: scale(0.98);
    opacity: 0.85;
}

.video-card .thumbnail-wrapper {
    position: relative;
    flex-shrink: 0;
    width: 120px;
    height: 68px;
    border-radius: 8px;
    overflow: hidden;
}

.video-card .thumbnail-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.duration-badge {
    position: absolute;
    bottom: 4px;
    right: 4px;
    background: rgba(0, 0, 0, 0.75);
    color: #ffffff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
}

.video-card .video-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
}

.video-card .video-info .title {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--tg-theme-text-color, #000000);
}

.video-card .video-info .channel {
    font-size: 12px;
    color: var(--tg-theme-hint-color, #999999);
    margin-top: 4px;
}

/* === Детальный вид видео === */
.video-detail {
    animation: fadeIn 0.3s ease;
}

.video-preview {
    position: relative;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 14px;
    aspect-ratio: 16 / 9;
}

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

.video-preview .duration-badge {
    bottom: 8px;
    right: 8px;
    font-size: 13px;
    padding: 3px 8px;
}

.video-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 6px;
    color: var(--tg-theme-text-color, #000000);
}

.video-channel {
    font-size: 14px;
    color: var(--tg-theme-hint-color, #999999);
    margin-bottom: 20px;
}

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

/* === Premium-заметка === */
.premium-note {
    margin-top: 8px;
    padding: 10px 14px;
    border-radius: 10px;
    background: rgba(255, 193, 7, 0.12);
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.premium-note p {
    font-size: 13px;
    color: var(--tg-theme-hint-color, #888888);
    line-height: 1.5;
}

.premium-note b {
    color: var(--tg-theme-text-color, #000000);
}

.premium-note code {
    background: var(--tg-theme-secondary-bg-color, #e8e8e8);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 12px;
}

/* === Premium-баннер === */
.premium-banner {
    margin-top: 20px;
    padding: 0 4px;
}

.btn-premium {
    width: 100%;
    padding: 14px 20px;
    border: none;
    border-radius: 12px;
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: #1a1a1a;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 12px rgba(255, 165, 0, 0.3);
}

.btn-premium:active {
    transform: scale(0.97);
    opacity: 0.9;
}

/* === Утилиты === */
.hidden {
    display: none !important;
}

/* === Анимации === */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}