/* ═══════════════════════════════════════════════════════════
   PuniCodex — Hub pages (Atlas/World, Culture, Tools, Library,
   Relics, About). Geometric chamfered cards over a 3D tetrahedral
   hero. Loaded alongside temple-base.css; nav injected by the
   desktop/mobile syncers.
   ═══════════════════════════════════════════════════════════ */

:root {
  --hub-bronze: #b87333;
  --hub-gold: #d4af37;
  --hub-ivory: #e8e0d5;
  --hub-obsidian: #0e0b08;
}

.hub-hero {
  position: relative;
  min-height: min(88vh, 820px);
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 70% 10%, rgba(184, 115, 51, 0.14), transparent 55%),
    radial-gradient(90% 70% at 20% 90%, rgba(212, 175, 55, 0.08), transparent 60%),
    var(--hub-obsidian);
}

.hub-hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hub-hero-veil {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg,
      rgba(14, 11, 8, 0.55) 0%,
      rgba(14, 11, 8, 0.05) 34%,
      rgba(14, 11, 8, 0.18) 62%,
      rgba(14, 11, 8, 0.92) 100%);
}

.hub-hero-copy {
  position: relative;
  z-index: 2;
  max-width: 1160px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(96px, 16vh, 180px) 24px 56px;
}

.hub-kicker {
  font-family: 'Montserrat', sans-serif;
  font-size: 12px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--hub-gold);
  margin: 0 0 14px;
}

.hub-title {
  font-family: 'Cinzel', serif;
  font-weight: 600;
  font-size: clamp(44px, 8vw, 104px);
  line-height: 0.98;
  color: var(--hub-ivory);
  margin: 0 0 18px;
  text-wrap: balance;
}

.hub-tagline {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic;
  font-size: clamp(19px, 2.4vw, 27px);
  color: rgba(232, 224, 213, 0.82);
  margin: 0 0 14px;
  max-width: 34ch;
}

.hub-blurb {
  font-family: 'Montserrat', sans-serif;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(232, 224, 213, 0.62);
  max-width: 62ch;
  margin: 0;
}

/* ── Card grid ─────────────────────────────────────────────── */

.hub-section {
  position: relative;
  max-width: 1160px;
  margin: 0 auto;
  padding: clamp(48px, 8vh, 88px) 24px 96px;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

.hub-card {
  --sheen: 0;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 26px 24px 22px;
  color: var(--hub-ivory);
  text-decoration: none;
  background:
    linear-gradient(160deg, rgba(232, 224, 213, 0.055), rgba(232, 224, 213, 0.015)),
    #14100c;
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
  transform: perspective(900px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)) translateY(var(--ty, 0));
  transition: transform 0.25s ease, background 0.25s ease;
  will-change: transform;
}

.hub-card::before {
  content: '';
  position: absolute;
  inset: 0;
  padding: 1px;
  background: linear-gradient(140deg, rgba(212, 175, 55, 0.55), rgba(184, 115, 51, 0.18) 38%, rgba(232, 224, 213, 0.08));
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px,
      1px 19px, 1px calc(100% - 1px), calc(100% - 19px) calc(100% - 1px), calc(100% - 1px) calc(100% - 19px),
      calc(100% - 1px) 1px, 19px 1px);
  pointer-events: none;
}

.hub-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(212, 175, 55, calc(var(--sheen) * 0.22)) 48%, transparent 62%);
  pointer-events: none;
  opacity: var(--sheen);
  transition: opacity 0.3s ease;
}

.hub-card:hover,
.hub-card:focus-visible {
  --ty: -4px;
  background:
    linear-gradient(160deg, rgba(232, 224, 213, 0.09), rgba(232, 224, 213, 0.03)),
    #181209;
}

.hub-card:hover::after,
.hub-card:focus-visible::after {
  opacity: 1;
}

.hub-card:focus-visible {
  outline: 2px solid var(--hub-gold);
  outline-offset: 3px;
}

.hub-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hub-card-title {
  font-family: 'Cinzel', serif;
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin: 0;
}

.hub-card-tag {
  font-family: 'Montserrat', sans-serif;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #0e0b08;
  background: var(--hub-gold);
  padding: 3px 8px;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}

.hub-card-blurb {
  font-family: 'Montserrat', sans-serif;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(232, 224, 213, 0.6);
  margin: 0;
  flex: 1;
}

.hub-card-go {
  font-family: 'Montserrat', sans-serif;
  font-size: 11.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--hub-bronze);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hub-card-go::after {
  content: '→';
  transition: transform 0.25s ease;
}

.hub-card:hover .hub-card-go::after {
  transform: translateX(5px);
}

/* ── Entrance reveal ───────────────────────────────────────── */

.hub-reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.hub-reveal.hub-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .hub-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hub-card {
    transform: none !important;
  }
}

/* ── Mobile ────────────────────────────────────────────────── */

@media (max-width: 720px) {
  .hub-hero {
    min-height: 68vh;
  }
  .hub-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .hub-card {
    padding: 22px 20px 18px;
  }
}