/* ========== СТРАНИЦА ЛЕНТЫ ПОДПИСОК (FEED) ========== */

/* Импорт общих стилей сайта (включая cards.css) */
@import url('2.1.css');

/* ========== ОСНОВНОЙ КОНТЕЙНЕР ========== */
.feed-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 5;
}

.feed-container h2 {
    color: white;
    font-size: 28px;
    margin-bottom: 25px;
    text-align: center;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 10;
}

/* ========== ВКЛАДКИ ========== */
.feed-tabs {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.feed-tab {
    padding: 10px 25px;
    background: rgba(0, 0, 0, 0.5);
    border: none;
    border-radius: 30px;
    color: white;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.feed-tab:hover {
    background: rgba(255, 77, 77, 0.5);
    transform: translateY(-2px);
}

.feed-tab.active {
    background: #ff4d4d;
    box-shadow: 0 4px 15px rgba(255, 77, 77, 0.3);
}

/* ========== СПИСОК АВТОРОВ ========== */
.authors-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    margin-bottom: 30px;
    padding: 15px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 50px;
    backdrop-filter: blur(5px);
}

.author-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 77, 77, 0.2);
    border-radius: 40px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 77, 77, 0.3);
}

.author-badge:hover {
    background: #ff4d4d;
    transform: translateY(-2px);
}

.author-badge.active {
    background: #ff4d4d;
    border-color: #ff4d4d;
}

.author-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
    background: #333;
}

.author-name {
    color: white;
    font-size: 14px;
    font-weight: 500;
}

/* ========== ПЕРЕОПРЕДЕЛЕНИЕ СЕТКИ ДЛЯ FEED ========== */
.feed-container .videos-grid {
    display: grid;
    gap: 20px;
    padding: 20px;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 5;
}

/* Адаптивность сетки для feed */
@media (min-width: 481px) {
    .feed-container .videos-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .feed-container .videos-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .feed-container .videos-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1200px) {
    .feed-container .videos-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1300px;
    }
}

@media (min-width: 1400px) {
    .feed-container .videos-grid {
        grid-template-columns: repeat(5, 1fr);
        max-width: 1600px;
    }
}

@media (max-width: 480px) {
    .feed-container .videos-grid {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 15px;
    }
}

/* ========== СОСТОЯНИЯ ЗАГРУЗКИ И ОШИБОК ========== */
.feed-container .loading,
.feed-container .error,
.feed-container .no-videos {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: white;
    font-size: 18px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 16px;
    backdrop-filter: blur(2px);
}

.feed-container .loading::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-left: 10px;
    border: 2px solid white;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    vertical-align: middle;
}

.feed-container .error {
    color: #ff6b6b;
}

.feed-container .error::before {
    content: '⚠️ ';
    font-size: 20px;
}

.feed-container .no-videos::before {
    content: '📭 ';
    font-size: 24px;
}

/* ========== КНОПКА ЗАГРУЗКИ ЕЩЕ ========== */
.load-more {
    text-align: center;
    margin: 30px 0 20px;
}

.load-more button {
    background: rgba(255, 77, 77, 0.8);
    color: white;
    border: none;
    padding: 10px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    backdrop-filter: blur(5px);
}

.load-more button:hover {
    background: #ff4d4d;
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(255, 77, 77, 0.3);
}

/* ========== АНИМАЦИИ ========== */
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ========== АДАПТИВНОСТЬ ========== */

/* Мобильные устройства (до 768px) */
@media (max-width: 768px) {
    .feed-container {
        padding: 12px;
    }
    
    .feed-container h2 {
        font-size: 22px;
        margin-bottom: 20px;
    }
    
    .feed-tab {
        padding: 8px 18px;
        font-size: 14px;
    }
    
    .author-badge {
        padding: 4px 12px;
    }
    
    .author-name {
        font-size: 12px;
    }
    
    .author-avatar {
        width: 24px;
        height: 24px;
    }
    
    .load-more button {
        padding: 8px 25px;
        font-size: 14px;
    }
}

/* Очень маленькие устройства (до 480px) */
@media (max-width: 480px) {
    .feed-container h2 {
        font-size: 20px;
    }
    
    .feed-container .loading,
    .feed-container .error,
    .feed-container .no-videos {
        padding: 40px 15px;
        font-size: 16px;
    }
}

/* Улучшения для производительности */
@media (prefers-reduced-motion: reduce) {
    .load-more button,
    .load-more button:hover {
        transition: none;
        transform: none;
    }
    
    .feed-container .loading::after {
        animation: none;
    }
}