body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: #181818;
    color: #fff;
}

header {
    background: #111;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

header h1 {
    margin: 0;
    font-size: 2rem;
    color: #ff3c3c;
    letter-spacing: 2px;
}

header a {
    text-decoration: none;
    color: inherit;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: #ff3c3c;
}

main {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.video-player-section {
    flex: 2 1 600px;
    background: #222;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.video-player-section video {
    width: 100%;
    max-width: 700px;
    border-radius: 8px;
    margin-bottom: 1rem;
    background: #000;
}

.video-player-section h2 {
    margin: 0.5rem 0 0.2rem 0;
    font-size: 1.5rem;
}

.video-player-section p {
    color: #bbb;
    font-size: 1rem;
    margin: 0 0 1rem 0;
}

.video-list-section {
    flex: 1 1 300px;
    background: #222;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
    min-width: 250px;
}

.video-list-section h3 {
    margin-top: 0;
    font-size: 1.2rem;
    color: #ff3c3c;
}

#video-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

#video-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.7rem 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s;
}

#video-list li:hover {
    background: #333;
}

#video-list img {
    width: 60px;
    height: 40px;
    object-fit: cover;
    border-radius: 6px;
    background: #000;
}

#video-list span {
    font-size: 1rem;
    color: #fff;
}

footer {
    background: #111;
    text-align: center;
    padding: 1rem;
    color: #888;
    font-size: 0.9rem;
    margin-top: 2rem;
}

@media (max-width: 900px) {
    main {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1rem;
    }
    .video-player-section, .video-list-section {
        padding: 1rem;
    }
}