* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Arial, sans-serif; background: #f4f4f4; color: #333; }
header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; background: #fff; box-shadow: 0 2px 4px rgba(0,0,0,0.1); }
header input { padding: 0.5rem; width: 300px; border: 1px solid #ccc; border-radius: 4px; }
button { padding: 0.5rem 1rem; cursor: pointer; background: #007bff; color: #fff; border: none; border-radius: 4px; }
button:hover { background: #0056b3; }
main { padding: 2rem; max-width: 1200px; margin: 0 auto; }
.upload-section { margin-bottom: 2rem; padding: 1.5rem; background: #fff; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
.upload-section form { display: flex; gap: 1rem; margin-top: 1rem; }
.video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; margin-top: 1rem; }
.video-card { background: #fff; border: 1px solid #ddd; padding: 10px; border-radius: 8px; box-shadow: 0 1px 3px rgba(0,0,0,0.1); }
video { width: 100%; border-radius: 4px; background: #000; }
.video-info { margin-top: 0.5rem; }
.video-info h3 { font-size: 1.1rem; margin-bottom: 0.25rem; }
.video-info p { font-size: 0.9rem; color: #666; margin-bottom: 0.5rem; }
@media(max-width: 768px) {
  .video-grid { grid-template-columns: 1fr; }
  header { flex-direction: column; gap: 1rem; }
}