* { box-sizing: border-box; }
body {
  font-family: system-ui, "Segoe UI", sans-serif;
  background: #0f172a;
  padding: 20px;
  display: flex;
  justify-content: center;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
  width: 100%;
  max-width: 900px;
}

.video-card {
  background: #1e293b;
  border-radius: 12px;
  overflow: hidden;
  transition: transform 0.2s;
}

.video-card:hover { transform: translateY(-4px); }

.thumbnail {
  width: 100%;
  /* The Magic: Force 16/9 ratio */
  aspect-ratio: 16 / 9;
  position: relative;
  background: #000;
}

.thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.video-card:hover img { opacity: 1; }

.play-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: rgba(0,0,0,0.6);
  color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 14px;
  backdrop-filter: blur(4px);
}

.meta {
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: white;
}

h3 { margin: 0; font-size: 1rem; font-weight: 500; }
span { font-size: 0.85rem; color: #94a3b8; }