:root {
  --brand-500: #6366f1;
  --brand-600: #4f46e5;
  --brand-700: #4338ca;
  --gray-50: #f9fafb;
  --gray-200: #e5e7eb;
  --gray-500: #6b7280;
  --gray-900: #111827;
}
* { box-sizing: border-box; margin: 0; }
body {
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  letter-spacing: -0.02em;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
header { padding: 1.25rem 2rem; }
.wordmark { font-size: 1.125rem; font-weight: 700; }
.wordmark .dot { color: var(--brand-600); }
main { flex: 1; width: 100%; max-width: 72rem; margin: 0 auto; padding: 2rem 2rem 4rem; }
h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 700; }
.sub { margin-top: 0.75rem; color: var(--gray-500); max-width: 40rem; }
.grid {
  margin-top: 2.5rem;
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
}
.card {
  display: block;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 0.75rem;
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}
.card:hover {
  border-color: var(--brand-500);
  box-shadow: 0 10px 25px -5px rgb(79 70 229 / 0.15);
  transform: translateY(-2px);
}
.thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--gray-200);
  position: relative;
}
.thumb iframe {
  width: 400%;
  height: 400%;
  transform: scale(0.25);
  transform-origin: top left;
  border: 0;
  pointer-events: none;
}
.card-body { padding: 1.25rem; }
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-700);
  background: #eef2ff;
  border-radius: 9999px;
  padding: 0.125rem 0.625rem;
}
.card-body h2 { margin-top: 0.625rem; font-size: 1.125rem; font-weight: 600; }
.cta { display: inline-block; margin-top: 0.875rem; font-size: 0.875rem; font-weight: 500; color: var(--brand-600); }
footer { padding: 1.5rem 2rem; font-size: 0.8125rem; color: var(--gray-500); text-align: center; }
footer a { color: var(--brand-600); text-decoration: none; font-weight: 500; }