/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #0f0f0f;
    color: #ffffff;
    line-height: 1.6;
}

/* Header Styles */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    height: 56px;
    background-color: #212121;
    border-bottom: 1px solid #303030;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-btn {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 20px;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.menu-btn:hover {
    background-color: #3d3d3d;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 500;
    color: #ffffff;
    text-decoration: none;
}

.logo i {
    color: #ff0000;
    font-size: 24px;
}

.header-center {
    flex: 1;
    max-width: 640px;
    margin: 0 40px;
}

.search-container {
    display: flex;
    height: 40px;
}

#searchInput {
    flex: 1;
    padding: 0 16px;
    border: 1px solid #303030;
    background-color: #121212;
    color: #ffffff;
    border-radius: 2px 0 0 2px;
    outline: none;
    font-size: 16px;
}

#searchInput:focus {
    border-color: #065fd4;
}

.search-btn {
    width: 64px;
    background-color: #303030;
    border: 1px solid #303030;
    border-left: none;
    color: #ffffff;
    cursor: pointer;
    border-radius: 0 2px 2px 0;
    transition: background-color 0.2s;
}

.search-btn:hover {
    background-color: #3d3d3d;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.scan-btn {
    background-color: #065fd4;
    border: none;
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 2px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
}

.scan-btn:hover {
    background-color: #0f7ded;
}

/* Main Content */
.main-content {
    margin-top: 56px;
    padding: 24px;
}

/* Video Grid */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.video-card {
    background-color: #181818;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.video-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    height: 180px;
    background-color: #303030;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.video-thumbnail .thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #303030;
}

.video-thumbnail .thumbnail-placeholder i {
    font-size: 48px;
    color: #666;
}

.video-duration {
    position: absolute;
    bottom: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.8);
    color: #ffffff;
    padding: 2px 6px;
    border-radius: 2px;
    font-size: 12px;
    font-weight: 500;
}

.video-info {
    padding: 12px;
}

.video-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 6px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    font-size: 14px;
    color: #aaa;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.video-stats {
    display: flex;
    gap: 8px;
}

/* Loading and No Videos */
.loading, .no-videos {
    text-align: center;
    padding: 60px 20px;
    color: #aaa;
}

.loading i, .no-videos i {
    font-size: 48px;
    margin-bottom: 16px;
    display: block;
}

.no-videos h3 {
    margin-bottom: 8px;
    color: #ffffff;
}

/* Watch Page Styles */
.watch-container {
    display: flex;
    gap: 24px;
    max-width: 1400px;
    margin: 80px auto 0;
    padding: 0 24px;
}

.video-player-section {
    flex: 1;
    max-width: 1000px;
}

.video-player {
    width: 100%;
    background-color: #000;
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 16px;
}

#videoPlayer {
    width: 100%;
    height: auto;
    min-height: 400px;
    display: block;
}

.video-info h1 {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 12px;
    line-height: 1.3;
}

.video-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #303030;
    margin-bottom: 16px;
}

.video-stats {
    display: flex;
    gap: 16px;
    color: #aaa;
    font-size: 14px;
}

.video-actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    background: none;
    border: 1px solid #303030;
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    transition: background-color 0.2s;
}

.action-btn:hover {
    background-color: #303030;
}

.video-description {
    background-color: #272727;
    padding: 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.4;
}

/* Sidebar */
.sidebar {
    width: 400px;
    flex-shrink: 0;
}

.sidebar h3 {
    font-size: 18px;
    margin-bottom: 16px;
    padding-left: 4px;
}

.related-videos {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.related-video {
    display: flex;
    gap: 12px;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.related-video:hover {
    background-color: #272727;
}

.related-thumbnail {
    width: 160px;
    height: 90px;
    background-color: #303030;
    border-radius: 8px;
    flex-shrink: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.related-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.related-thumbnail .thumbnail-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #303030;
}

.related-thumbnail .thumbnail-placeholder i {
    font-size: 24px;
    color: #666;
}

.related-info {
    flex: 1;
}

.related-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-meta {
    font-size: 12px;
    color: #aaa;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .watch-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .header-center {
        margin: 0 16px;
    }
    
    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 16px;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .watch-container {
        padding: 0 16px;
        margin-top: 72px;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 0 8px;
    }
    
    .header-center {
        margin: 0 8px;
    }
    
    .video-grid {
        grid-template-columns: 1fr;
    }
    
    .scan-btn {
        padding: 8px 12px;
        font-size: 12px;
    }
    
    .scan-btn span {
        display: none;
    }
}