:root {
  --bg: #0f1220;
  --card: #181c3a;
  --accent: #6cf;
  --text: #e9ecff;
  --muted: #9aa3ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, #1b1f4a, transparent), var(--bg);
  color: var(--text);
}

header {
  padding: 24px;
  max-width: 1200px;
  margin: auto;
}

h1 {
  margin: 0 0 6px;
  font-size: 28px;
}

p {
  margin: 0;
  color: var(--muted);
}

.grid {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 16px 32px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}

.card {
  position: relative;
  background: linear-gradient(180deg, #20256a, var(--card));
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  transition: transform .2s ease, box-shadow .2s ease;
}

.card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 16px 40px rgba(0,0,0,.45);
}

.thumb {
  aspect-ratio: 16 / 9;
  width: 100%;
  background-size: cover;
  background-position: center;
}

.info {
  padding: 12px 14px 14px;
}

.title {
  font-weight: 700;
  margin-bottom: 4px;
}

.meta {
  font-size: 12px;
  color: var(--muted);
}

.actions {
  position: absolute;
  inset: auto 10px 10px 10px;
  display: flex;
  gap: 8px;
  opacity: 0;
  transform: translateY(6px);
  transition: .2s ease;
}

.card:hover .actions {
  opacity: 1;
  transform: translateY(0);
}

.btn {
  flex: 1;
  padding: 8px 10px;
  border-radius: 10px;
  border: 0;
  cursor: pointer;
  background: rgba(255,255,255,.1);
  color: var(--text);
  backdrop-filter: blur(6px);
}

.btn.primary {
  background: linear-gradient(180deg, #6cf, #3ab);
  color: #00151a;
  font-weight: 700;
}

/* Video preview */
.preview {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .2s ease;
}

.card:hover .preview {
  opacity: 1;
}

.preview video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

iframe:fullscreen {
  width: 100vw;
  height: 100vh;
}

.fs-button {
      padding: 8px 14px;
      border-radius: 10px;
      border: 0;
      cursor: pointer;
      background: linear-gradient(180deg, #6cf, #3ab);
      color: #00151a;
      font-weight: 700;
}

footer {
  text-align: center;
  padding: 24px;
  color: var(--muted);
}