body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #181818;
    color: #fff;
}
header {
    background: #232323;
    padding: 20px 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
header h1 {
    margin: 0;
    font-size: 2.5rem;
    letter-spacing: 2px;
}
nav {
    margin-top: 10px;
}
nav a {
    color: #ff9800;
    text-decoration: none;
    margin: 0 15px;
    font-weight: 500;
    transition: color 0.2s;
}
nav a:hover {
    color: #fff;
}
main {
    max-width: 900px;
    margin: 40px auto;
    padding: 0 20px;
}
.video-section h2 {
    margin-bottom: 20px;
    font-size: 2rem;
}
.video-player {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #222;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
    padding: 20px;
}
video {
    width: 100%;
    max-width: 700px;
    border-radius: 8px;
    background: #000;
}
.video-list {
    margin-top: 40px;
}
.video-list h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}
.thumbnails {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}
.thumb {
    background: #232323;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    text-align: center;
    width: 180px;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}
.thumb:hover {
    transform: translateY(-5px) scale(1.03);
    box-shadow: 0 6px 24px rgba(0,0,0,0.3);
}
.thumb img {
    width: 100%;
    height: 110px;
    object-fit: cover;
    display: block;
}
.thumb span {
    display: block;
    padding: 10px 0;
    color: #ff9800;
    font-weight: 500;
}
footer {
    background: #232323;
    text-align: center;
    padding: 18px 0;
    margin-top: 60px;
    font-size: 1rem;
    color: #bbb;
}
@media (max-width: 700px) {
    main {
        padding: 0 5px;
    }
    .thumbnails {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }
    .thumb {
        width: 90%;
    }
    .video-player {
        padding: 10px;
    }
}