/* HAND Audio Briefings — derived from web/3d-test/loading.html theme tokens.
   Cinematic HUD aesthetic: ink-navy ground, amber-glow accents,
   JetBrains Mono for chrome, Inter for display. Corner brackets,
   fine grid overlay, concentric rings as decoration. */

:root {
  --bg: #07090f;
  --bg-2: #0c1220;
  --bg-card: rgba(12, 18, 32, 0.62);
  --ink: #f5efe1;
  --ink-dim: #8e8a7e;
  --ink-faint: #4a4940;
  --amber: #d97706;
  --amber-soft: rgba(255, 186, 73, 0.85);
  --amber-glow: rgba(217, 119, 6, 0.55);
  --amber-edge: rgba(217, 119, 6, 0.28);
  --grid: rgba(217, 119, 6, 0.06);
  --hud: rgba(245, 239, 225, 0.18);
  --hud-strong: rgba(245, 239, 225, 0.55);
  --rule: rgba(217, 119, 6, 0.15);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body {
  position: relative;
  padding: 0 32px 96px;
  overflow-x: hidden;
}

/* deep radial vignette */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(1400px 900px at 50% 0%, rgba(217,119,6,0.10), transparent 60%),
    radial-gradient(circle at 50% 50%, var(--bg-2) 0%, var(--bg) 70%);
  pointer-events: none;
  z-index: 0;
}

/* fine HUD grid */
body::after {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 40%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 40%, black 20%, transparent 70%);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

main { position: relative; z-index: 1; max-width: 1100px; margin: 0 auto; }

/* corner HUD chrome — fixed in viewport */
.hud {
  position: fixed;
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  text-transform: uppercase;
  pointer-events: none;
  user-select: none;
  z-index: 5;
}
.hud b { color: var(--ink); font-weight: 500; }
.hud .amber { color: var(--amber-soft); }
.hud-tl { top: 28px; left: 32px; }
.hud-tr { top: 28px; right: 32px; text-align: right; }
.hud-bl { bottom: 28px; left: 32px; }
.hud-br { bottom: 28px; right: 32px; text-align: right; }
.hud .row { display: flex; gap: 12px; align-items: center; line-height: 1.7; }
.hud .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber-glow);
  animation: blink 1.4s infinite ease-in-out;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

/* corner brackets — fixed in viewport */
.bracket { position: fixed; width: 28px; height: 28px; border: 1px solid var(--hud); pointer-events: none; z-index: 5; }
.bracket.tl { top: 18px; left: 18px; border-right: 0; border-bottom: 0; }
.bracket.tr { top: 18px; right: 18px; border-left: 0; border-bottom: 0; }
.bracket.bl { bottom: 18px; left: 18px; border-right: 0; border-top: 0; }
.bracket.br { bottom: 18px; right: 18px; border-left: 0; border-top: 0; }

/* hero */
.hero {
  position: relative;
  padding: 140px 0 64px;
  text-align: center;
}
.hero__eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 24px;
}
.hero__eyebrow .amber { color: var(--amber-soft); }
.hero__title {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: clamp(40px, 6vw, 76px);
  letter-spacing: -0.035em;
  line-height: 1.02;
  background: linear-gradient(180deg, #fff5dd 0%, #f59e0b 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 20px;
}
.hero__subtitle {
  font-size: 16px;
  color: var(--ink-dim);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
}
.hero__rings {
  position: absolute;
  top: 110px;
  left: 50%;
  transform: translateX(-50%);
  width: 380px;
  height: 380px;
  opacity: 0.35;
  pointer-events: none;
}
.hero__rings svg { width: 100%; height: 100%; overflow: visible; }
.ring-spin { animation: ringspin 60s linear infinite; transform-origin: 50% 50%; transform-box: fill-box; }
.ring-spin-rev { animation: ringspin 80s linear infinite reverse; transform-origin: 50% 50%; transform-box: fill-box; }
@keyframes ringspin { to { transform: rotate(360deg); } }

/* section header */
.section-head {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin: 96px 0 40px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}
.section-head__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--amber-soft);
}
.section-head__title {
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.section-head__meta {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

/* episode cards — triptych */
.triptych {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.episode {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--amber-edge);
  border-radius: 4px;
  padding: 28px 28px 24px;
  backdrop-filter: blur(8px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-height: 320px;
  transition: border-color 200ms ease, transform 200ms ease;
}
.episode:hover {
  border-color: var(--amber-soft);
  transform: translateY(-2px);
}

/* corner brackets per card */
.episode__bracket { position: absolute; width: 14px; height: 14px; border: 1px solid var(--hud-strong); pointer-events: none; }
.episode__bracket.tl { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
.episode__bracket.tr { top: 8px; right: 8px; border-left: 0; border-bottom: 0; }
.episode__bracket.bl { bottom: 8px; left: 8px; border-right: 0; border-top: 0; }
.episode__bracket.br { bottom: 8px; right: 8px; border-left: 0; border-top: 0; }

.episode__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.episode__num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--amber-soft);
}
.episode__meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
}
.episode__title {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.012em;
  line-height: 1.15;
  color: var(--ink);
}
.episode__question {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.episode__body {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-dim);
  flex: 1;
}
.episode__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
}
.episode__cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-soft);
  text-decoration: none;
  transition: color 150ms;
}
.episode__cta:hover { color: var(--ink); }
.episode__cta::after { content: '→'; }
.episode__duration {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  text-transform: uppercase;
}

/* weekly section */
.weekly-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.weekly-row {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  background: var(--bg-card);
  border: 1px solid var(--amber-edge);
  border-radius: 4px;
  backdrop-filter: blur(6px);
  transition: border-color 200ms;
}
.weekly-row:hover { border-color: var(--amber-soft); }
.weekly-row__date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-soft);
}
.weekly-row__title { font-size: 16px; color: var(--ink); }
.weekly-row__cta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--amber-soft);
  text-decoration: none;
}
.weekly-row__cta:hover { color: var(--ink); }

/* footnote */
.footnote {
  margin-top: 96px;
  padding: 32px 0;
  border-top: 1px solid var(--rule);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  line-height: 1.8;
  text-transform: uppercase;
}
.footnote .amber { color: var(--amber-soft); }
.footnote a { color: var(--amber-soft); text-decoration: none; border-bottom: 1px dashed var(--amber-edge); }
.footnote a:hover { color: var(--ink); }

@media (max-width: 720px) {
  body { padding: 0 20px 80px; }
  .hud { font-size: 10px; }
  .hud-tl { top: 18px; left: 22px; }
  .hud-tr { top: 18px; right: 22px; }
  .hud-bl, .hud-br { display: none; }
  .hero { padding: 100px 0 48px; }
  .section-head { margin: 64px 0 28px; flex-wrap: wrap; }
  .section-head__meta { margin-left: 0; width: 100%; }
  .weekly-row { grid-template-columns: 1fr; gap: 6px; }
  .weekly-row__cta { justify-self: start; margin-top: 8px; }
}