:root {
    --background: #000000;
    --foreground: #ffffff;
    --card: #0a0a0a;
    --card-foreground: #ffffff;
    --popover: #0a0a0a;
    --popover-foreground: #ffffff;
    --primary: #ffffff;
    --primary-foreground: #000000;
    --secondary: #1a1a1a;
    --secondary-foreground: #ffffff;
    --muted: #1a1a1a;
    --muted-foreground: #a1a1aa;
    --accent: #1a1a1a;
    --accent-foreground: #ffffff;
    --destructive: #dc2626;
    --destructive-foreground: #ffffff;
    --border: #27272a;
    --input: #27272a;
    --ring: #ffffff;
    --radius: 0.5rem;
}

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

body {
    background-color: var(--background);
    color: var(--foreground);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

header {
    border-bottom: 1px solid var(--border);
    background-color: var(--background);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(8px);
    background-color: rgba(0, 0, 0, 0.8);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.logo:hover {
    opacity: 0.8;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--foreground);
}

.logo-icon {
    color: var(--foreground);
    font-size: 1.125rem;
}

.search-container {
    display: flex;
    align-items: center;
    flex: 1;
    max-width: 32rem;
    margin: 0 2rem;
}

.search-form {
    display: flex;
    width: 100%;
    position: relative;
}

.search-input {
    flex: 1;
    height: 2.5rem;
    padding: 0 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    background-color: var(--background);
    color: var(--foreground);
    font-size: 0.875rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.search-input:focus {
    outline: none;
    border-color: var(--ring);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.search-input::placeholder {
    color: var(--muted-foreground);
}

.search-button {
    height: 2.5rem;
    padding: 0 1rem;
    border: 1px solid var(--border);
    border-left: none;
    border-radius: var(--radius);
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    background-color: var(--secondary);
    color: var(--secondary-foreground);
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-button:hover {
    background-color: var(--accent);
}

.github-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--background);
    color: var(--foreground);
    text-decoration: none;
    transition: background-color 0.2s, border-color 0.2s;
}

.github-button:hover {
    background-color: var(--secondary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.page {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    transition: opacity 0.2s ease-in-out;
}

.page.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.trending-grid,
.search-grid,
.channel-videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(20rem, 1fr));
    gap: 1.5rem;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
    gap: 1rem;
}

.video-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.video-card:hover {
    border-color: var(--muted-foreground);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.thumbnail-container {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--muted);
}

.thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.2s;
}

.video-card:hover .thumbnail {
    transform: scale(1.02);
}

.duration {
    position: absolute;
    bottom: 0.5rem;
    right: 0.5rem;
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.video-info {
    padding: 1rem;
}

.video-title {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    line-height: 1.25;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--card-foreground);
}

.video-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.uploader {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.uploader-avatar {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    object-fit: cover;
}

.video-stats {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.75rem;
    color: var(--muted-foreground);
}

.stat {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.video-player-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.player-wrapper {
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: #000;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.player-wrapper video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    background-color: #000;
}

.preparation-overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 10;
}

.preparation-status {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--foreground);
    text-align: center;
}

.preparation-progress-container {
    width: 16rem;
    height: 0.25rem;
    background-color: var(--muted);
    border-radius: 0.125rem;
    overflow: hidden;
}

.preparation-progress-bar {
    height: 100%;
    background-color: var(--primary);
    border-radius: 0.125rem;
    transition: width 0.3s ease;
    width: 0%;
}

.reload-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.25rem;
    padding: 0 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--secondary);
    color: var(--secondary-foreground);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.reload-button:hover {
    background-color: var(--accent);
}

.video-detail {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.video-detail-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.25;
}

.video-detail-meta {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.video-detail-uploader {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.video-detail-uploader:hover {
    opacity: 0.8;
}

.uploader-avatar-large {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    object-fit: cover;
}

.uploader-info {
    display: flex;
    flex-direction: column;
}

.uploader-name {
    font-weight: 600;
    font-size: 1rem;
}

.uploaded-date {
    font-size: 0.875rem;
    color: var(--muted-foreground);
}

.video-detail-stats {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.detail-stat {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.video-description {
    color: var(--muted-foreground);
    line-height: 1.6;
    font-size: 0.875rem;
}

.search-heading {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.search-query {
    font-size: 1.5rem;
    font-weight: 700;
}

.search-count {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    background-color: var(--muted);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.channel-header {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 2rem;
}

.channel-banner-container {
    height: 10rem;
    background-color: var(--muted);
    overflow: hidden;
}

.channel-banner {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.channel-info {
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
}

.channel-avatar-container {
    flex-shrink: 0;
    margin-top: -2rem;
}

.channel-avatar {
    width: 5rem;
    height: 5rem;
    border-radius: 50%;
    border: 3px solid var(--background);
    background-color: var(--muted);
}

.channel-details {
    flex: 1;
}

.channel-title-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.channel-title {
    font-size: 1.5rem;
    font-weight: 700;
}

.channel-verified {
    color: var(--muted-foreground);
}

.channel-stats {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.channel-description {
    color: var(--muted-foreground);
    line-height: 1.6;
    font-size: 0.875rem;
    white-space: pre-line;
    max-height: 6rem;
    overflow-y: auto;
}

.load-more-container {
    display: flex;
    justify-content: center;
    margin-top: 2rem;
}

.load-more-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.5rem;
    padding: 0 1.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background-color: var(--secondary);
    color: var(--secondary-foreground);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.load-more-button:hover {
    background-color: var(--accent);
}

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border);
}

.loading-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 20rem;
}

.loader {
    width: 2rem;
    height: 2rem;
    border: 2px solid var(--muted);
    border-top: 2px solid var(--foreground);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.skeleton {
    background: linear-gradient(90deg,
            var(--muted) 25%,
            var(--secondary) 50%,
            var(--muted) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.skeleton-video {
    aspect-ratio: 16 / 9;
}

.skeleton-title {
    height: 1rem;
    margin: 0.5rem 0;
    width: 90%;
}

.skeleton-uploader {
    height: 0.875rem;
    width: 60%;
    margin-bottom: 0.5rem;
}

.skeleton-stats {
    height: 0.75rem;
    width: 40%;
}

.no-results {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--muted-foreground);
}

.no-results i {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.animated-item {
    opacity: 0;
    transform: translateY(1rem);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.animated-item.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .search-container {
        order: 3;
        margin: 0;
        width: 100%;
    }

    .container {
        padding: 1rem;
    }

    .trending-grid,
    .search-grid,
    .channel-videos-grid {
        grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
        gap: 1rem;
    }

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

    .video-detail-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    .video-detail-stats {
        flex-wrap: wrap;
    }

    .channel-info {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .channel-avatar-container {
        margin-top: -3rem;
    }
}

@media (max-width: 480px) {

    .trending-grid,
    .search-grid,
    .channel-videos-grid,
    .related-grid {
        grid-template-columns: 1fr;
    }

    .video-detail-title {
        font-size: 1.25rem;
    }
}