/* ============================================================
   AV Hub — styles.css
   Sibling to the (former) /media/ hub. Same visual language so
   "see also" feels coherent across audio + video category pages.
   ============================================================ */

:root {
  --bg: #0c0d0f;
  --panel: #111214;
  --panel2: #15171a;
  --text: #f5f6f7;
  --dim: #9aa3b2;
  --muted: #6b7280;
  --border: #2a2a2a;
  --line: #1e1e1e;
  --accent: #60a5fa;
  --accent2: #93c5fd;
  --shadow: rgba(0, 0, 0, 0.35);
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; }

html { scroll-behavior: smooth; scrollbar-gutter: stable both-edges; overflow-y: scroll; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: var(--bg);
  padding: 0.5rem 1rem; z-index: 100;
  border-radius: 0 0 4px 0; font-weight: 600;
}
.skip-link:focus { left: 0; }

.site-header { position: sticky; top: 0; z-index: 50; }
.topbar { background: var(--bg); border-bottom: 1px solid var(--line); }
.topbar-content {
  max-width: 960px; margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.brand {
  font-family: var(--mono); font-size: 0.85rem;
  color: var(--dim); letter-spacing: 0.02em; white-space: nowrap;
}
.brand:hover { color: var(--text); }

.wrap { min-height: 100vh; display: flex; flex-direction: column; }
main { flex: 1; max-width: 960px; margin: 0 auto; padding: 0 1.25rem; width: 100%; }

.intro { text-align: center; padding: 4rem 0 3rem; }
.intro-title {
  font-size: 2.25rem; font-weight: 700;
  letter-spacing: -0.02em; color: var(--text);
  margin-bottom: 0.75rem;
}
.intro-subtitle {
  font-size: 1.05rem; color: var(--dim);
  max-width: 540px; margin: 0 auto; line-height: 1.65;
}
.intro-subtitle a { color: var(--accent2); border-bottom: 1px solid currentColor; }

.sections-section { padding-bottom: 3rem; }
.sections-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.25rem; }
@media (max-width: 720px) { .sections-grid { grid-template-columns: 1fr; } }

.section-card {
  display: block; background: var(--panel);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 1.5rem;
  transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
}
.section-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow);
}
.section-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.section-visual {
  margin-bottom: 1.25rem; height: 56px;
  display: flex; align-items: center; overflow: hidden; border-radius: 6px;
}
.section-visual--tube, .section-visual--movies { justify-content: center; }
.play-icon, .clap-icon { width: 48px; height: 48px; color: var(--accent); }

.section-title { font-size: 1.15rem; font-weight: 600; color: var(--accent); margin-bottom: 0.35rem; }
.section-tagline { font-size: 0.9rem; color: var(--dim); line-height: 1.5; margin-bottom: 0.65rem; }
.section-stats { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); letter-spacing: 0.01em; }

.fineprint {
  text-align: center; padding: 2rem 1.25rem;
  font-size: 0.8rem; color: var(--muted);
  border-top: 1px solid var(--line);
}
.fineprint a { color: var(--dim); transition: color 0.2s ease; }
.fineprint a:hover { color: var(--text); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .section-card { transition: none; }
  .section-card:hover { transform: none; }
}