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

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #212121;
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.youtube-logo {
    width: 90px;
    height: 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
}

.search-bar {
    display: flex;
    flex: 1;
    max-width: 600px;
}

#searchInput {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid #303030;
    background-color: #121212;
    color: #fff;
    font-size: 16px;
    border-radius: 40px 0 0 40px;
    outline: none;
}

#searchInput:focus {
    border-color: #1c62b9;
}

#searchBtn {
    padding: 10px 20px;
    background-color: #303030;
    border: 1px solid #303030;
    border-left: none;
    border-radius: 0 40px 40px 0;
    cursor: pointer;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

#searchBtn:hover {
    background-color: #3f3f3f;
}

.filters {
    display: flex;
    gap: 12px;
    padding: 20px 0;
    overflow-x: auto;
    white-space: nowrap;
}

.filters::-webkit-scrollbar {
    height: 6px;
}

.filters::-webkit-scrollbar-thumb {
    background-color: #303030;
    border-radius: 3px;
}

.filter-btn {
    padding: 8px 16px;
    background-color: #272727;
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.filter-btn:hover {
    background-color: #3f3f3f;
}

.filter-btn.active {
    background-color: #fff;
    color: #0f0f0f;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
    padding-bottom: 40px;
}

.video-card {
    background-color: #1a1a1a;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
}

.video-thumbnail {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    overflow: hidden;
    background-color: #000;
}

.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-color: rgba(0, 0, 0, 0.8);
    padding: 3px 6px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
}

.video-info {
    padding: 12px;
}

.video-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

.video-channel {
    font-size: 14px;
    color: #aaa;
    margin-bottom: 4px;
}

.video-meta {
    font-size: 13px;
    color: #aaa;
    display: flex;
    gap: 8px;
}

.category-badge {
    display: inline-block;
    padding: 4px 8px;
    background-color: #ff0000;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    margin-top: 8px;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    overflow: auto;
}

.modal-content {
    background-color: #212121;
    margin: 50px auto;
    padding: 0;
    width: 90%;
    max-width: 1200px;
    border-radius: 12px;
    overflow: hidden;
}

.close {
    color: #aaa;
    float: right;
    font-size: 32px;
    font-weight: bold;
    padding: 10px 20px;
    cursor: pointer;
}

.close:hover,
.close:focus {
    color: #fff;
}

.video-player {
    width: 100%;
    background-color: #000;
}

.video-details {
    padding: 20px;
}

.video-details h2 {
    font-size: 24px;
    margin-bottom: 12px;
}

.video-details .video-meta {
    margin-bottom: 16px;
    font-size: 14px;
    color: #aaa;
    gap: 16px;
}

.video-details p {
    color: #ccc;
    line-height: 1.6;
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }

    .search-bar {
        width: 100%;
        max-width: 100%;
    }

    .video-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 15px;
    }

    .modal-content {
        width: 95%;
        margin: 20px auto;
    }

    .video-player iframe {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .video-grid {
        grid-template-columns: 1fr;
    }

    .logo h1 {
        font-size: 20px;
    }

    .filters {
        gap: 8px;
    }

    .filter-btn {
        padding: 6px 12px;
        font-size: 13px;
    }
}