:root {
  color-scheme: light dark;
  --bg: #0f1115;
  --card: #1a1d24;
  --text: #e8e9ec;
  --muted: #9aa0aa;
  --accent: #4f7cff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 2.5rem 1.5rem 1.5rem;
  text-align: center;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
  font-weight: 600;
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.video-card h2 {
  font-size: 1.15rem;
  margin: 0 0 0.75rem;
}

.video-card .meta {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0.5rem 0 0;
}

.video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: var(--card);
  border-radius: 10px;
  overflow: hidden;
}

.video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.hub-links {
  max-width: 500px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hub-links a {
  display: block;
  background: var(--card);
  color: var(--text);
  text-decoration: none;
  padding: 1.25rem;
  border-radius: 10px;
  text-align: center;
  font-weight: 600;
  border: 1px solid #2a2e38;
}

.hub-links a:hover {
  border-color: var(--accent);
}

.hub-links p.sub {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.8rem;
  margin: 0.4rem 0 0;
}