/* ============================================================
   CELESTIAL CODEX — shared design system
   Aesthetic: arcane atlas of the heavens. Deep cosmic void,
   gilded filigree, per-element glow. Real CSS 3D depth.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700;800;900&family=Cinzel+Decorative:wght@700;900&family=Spectral:ital,wght@0,300;0,400;0,500;0,600;1,400&display=swap');

:root {
  /* core void palette */
  --void-0: #06060f;
  --void-1: #0a0a18;
  --void-2: #11112a;
  --void-3: #1a1838;
  --mist: #c9c6e0;
  --mist-dim: #8b87ad;
  --ink: #efeaff;

  /* celestial gold */
  --gold: #e8c87e;
  --gold-bright: #f6e3aa;
  --gold-deep: #b8924a;

  /* elemental spectrum */
  --anemo: #6fd0b0;
  --geo: #f0b71d;
  --electro: #b18fe0;
  --dendro: #9bd45a;
  --hydro: #4cc3e8;
  --pyro: #f2683f;
  --cryo: #a7e0ef;

  --shadow-deep: 0 30px 80px -20px rgba(0,0,0,.8);
  --ring: rgba(232,200,126,.35);

  --font-display: 'Cinzel', serif;
  --font-decor: 'Cinzel Decorative', serif;
  --font-body: 'Spectral', serif;

  --maxw: 1240px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--void-0);
  color: var(--mist);
  line-height: 1.7;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* cosmic backdrop layers ------------------------------------ */
.cosmos {
  position: fixed;
  inset: 0;
  z-index: -3;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(232,200,126,.10), transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 20%, rgba(177,143,224,.10), transparent 55%),
    radial-gradient(ellipse 70% 60% at 10% 80%, rgba(76,195,232,.08), transparent 55%),
    linear-gradient(180deg, var(--void-0), var(--void-1) 40%, var(--void-0));
}
#starfield {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
}
.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .04;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* typography ------------------------------------------------- */
h1,h2,h3,h4 { font-family: var(--font-display); color: var(--ink); font-weight: 700; line-height: 1.12; letter-spacing: .01em; }
a { color: var(--gold); text-decoration: none; transition: color .3s; }
a:hover { color: var(--gold-bright); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px, 5vw, 56px); }

.eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: .42em;
  font-size: .72rem;
  font-weight: 600;
  color: var(--gold);
  display: inline-block;
}

.gild { color: var(--gold); }
.shimmer {
  background: linear-gradient(100deg, var(--gold-deep), var(--gold-bright) 35%, var(--gold) 50%, var(--gold-bright) 65%, var(--gold-deep));
  background-size: 220% auto;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shine 6s linear infinite;
}
@keyframes shine { to { background-position: 220% center; } }

/* gilded divider */
.rule {
  display: flex; align-items: center; gap: 14px;
  color: var(--gold-deep); margin: 0 auto;
}
.rule::before, .rule::after { content:''; height:1px; flex:1; background: linear-gradient(90deg, transparent, var(--gold-deep)); }
.rule::after { background: linear-gradient(270deg, transparent, var(--gold-deep)); }
.rule .glyph { font-size: 1.1rem; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px clamp(20px, 5vw, 56px);
  transition: background .4s, backdrop-filter .4s, padding .4s;
}
.nav.scrolled {
  background: rgba(8,8,18,.78);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(232,200,126,.14);
  padding: 12px clamp(20px, 5vw, 56px);
}
.brand { display:flex; align-items:center; gap:12px; font-family: var(--font-decor); font-weight:900; color: var(--ink); font-size: 1.15rem; letter-spacing:.04em; }
.brand .seal {
  width: 34px; height: 34px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--gold-bright), var(--gold-deep));
  box-shadow: 0 0 18px var(--ring), inset 0 0 8px rgba(0,0,0,.4);
  display:grid; place-items:center; color: var(--void-0); font-family: var(--font-display); font-weight:900; font-size:.9rem;
}
.nav-links { display:flex; align-items:center; gap: 30px; list-style:none; }
.nav-links a {
  font-family: var(--font-display); font-size:.82rem; font-weight:500;
  text-transform: uppercase; letter-spacing:.16em; color: var(--mist);
  position: relative; padding: 4px 0;
}
.nav-links a::after {
  content:''; position:absolute; left:0; bottom:-2px; height:1px; width:0;
  background: var(--gold); transition: width .35s var(--ease);
}
.nav-links a:hover, .nav-links a.active { color: var(--gold-bright); }
.nav-links a:hover::after, .nav-links a.active::after { width:100%; }

.burger { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:6px; }
.burger span { width:24px; height:2px; background: var(--gold); transition:.3s; }

@media (max-width: 860px) {
  .burger { display:flex; }
  .nav-links {
    position: fixed; inset: 0 0 0 35%; flex-direction: column; justify-content: center;
    gap: 28px; background: rgba(8,8,18,.96); backdrop-filter: blur(20px);
    transform: translateX(100%); transition: transform .45s var(--ease);
    border-left: 1px solid rgba(232,200,126,.2);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 1rem; }
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display:inline-flex; align-items:center; gap:10px;
  font-family: var(--font-display); font-weight:600; font-size:.82rem;
  text-transform: uppercase; letter-spacing:.18em;
  padding: 14px 30px; border-radius: 2px; cursor:pointer;
  transition: all .35s var(--ease); position:relative; overflow:hidden;
}
.btn-gold {
  color: var(--void-0);
  background: linear-gradient(135deg, var(--gold-bright), var(--gold) 50%, var(--gold-deep));
  box-shadow: 0 8px 30px -8px var(--ring);
}
.btn-gold:hover { color: var(--void-0); transform: translateY(-2px); box-shadow: 0 14px 40px -8px var(--ring); }
.btn-ghost {
  color: var(--gold); border: 1px solid rgba(232,200,126,.4); background: rgba(232,200,126,.04);
}
.btn-ghost:hover { color: var(--gold-bright); border-color: var(--gold); background: rgba(232,200,126,.1); }

/* ============================================================
   HERO (homepage) — parallax 3D scene
   ============================================================ */
.hero {
  min-height: 100vh; display:grid; place-items:center; text-align:center;
  position: relative; perspective: 1400px; padding: 120px 0 80px;
}
.hero-stage { transform-style: preserve-3d; will-change: transform; }
.hero-img-layer {
  position:absolute; inset:0; z-index:-1; overflow:hidden;
  -webkit-mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, #000 30%, transparent 75%);
}
.hero-img-layer img { width:100%; height:100%; object-fit:cover; opacity:.5; transform: scale(1.12); }
.hero .eyebrow { margin-bottom: 22px; }
.hero h1 {
  font-size: clamp(2.8rem, 8vw, 6.4rem); font-weight: 800; line-height: .98;
  text-shadow: 0 4px 40px rgba(0,0,0,.6);
}
.hero h1 .line { display:block; }
.hero p.lead {
  max-width: 620px; margin: 28px auto 40px; font-size: clamp(1.02rem, 2vw, 1.22rem);
  color: var(--mist); font-weight: 300;
}
.hero-cta { display:flex; gap: 16px; justify-content:center; flex-wrap:wrap; }

.scroll-hint {
  position:absolute; bottom: 30px; left:50%; transform: translateX(-50%);
  font-family: var(--font-display); font-size:.66rem; letter-spacing:.34em;
  text-transform:uppercase; color: var(--gold-deep);
  display:flex; flex-direction:column; align-items:center; gap:10px;
}
.scroll-hint .dot { width:5px; height:5px; border-radius:50%; background: var(--gold);
  animation: fall 1.8s var(--ease) infinite; }
@keyframes fall { 0%{transform:translateY(-8px);opacity:0;} 40%{opacity:1;} 100%{transform:translateY(18px);opacity:0;} }

/* floating constellation glyphs */
.float-glyph {
  position:absolute; font-size: clamp(2rem, 5vw, 4rem); color: rgba(232,200,126,.12);
  font-family: var(--font-decor); pointer-events:none; will-change: transform;
}

/* ============================================================
   SECTION SCAFFOLD
   ============================================================ */
section { position: relative; padding: clamp(70px, 12vh, 130px) 0; }
.section-head { text-align:center; margin-bottom: 64px; }
.section-head h2 { font-size: clamp(2rem, 5vw, 3.4rem); margin: 16px 0 18px; }
.section-head p { max-width: 600px; margin: 0 auto; color: var(--mist-dim); font-weight:300; }

/* ============================================================
   3D TILT CARDS (regions / general)
   ============================================================ */
.tilt-grid {
  display:grid; grid-template-columns: repeat(auto-fill, minmax(290px,1fr));
  gap: 30px; perspective: 1200px;
}
.tilt {
  position: relative; border-radius: 6px; overflow:hidden;
  transform-style: preserve-3d; transition: transform .15s ease, box-shadow .4s;
  will-change: transform; cursor: pointer; min-height: 380px;
  background: var(--void-2); border: 1px solid rgba(232,200,126,.12);
  box-shadow: var(--shadow-deep);
}
.tilt:hover { box-shadow: 0 40px 90px -20px rgba(0,0,0,.85), 0 0 50px -10px var(--elem, var(--ring)); }
.tilt .media { position:absolute; inset:0; }
.tilt .media img { width:100%; height:100%; object-fit:cover; transition: transform .6s var(--ease); }
.tilt:hover .media img { transform: scale(1.08); }
.tilt .scrim {
  position:absolute; inset:0;
  background: linear-gradient(180deg, transparent 30%, rgba(6,6,15,.55) 60%, rgba(6,6,15,.96));
}
.tilt .body { position:absolute; inset:auto 0 0 0; padding: 28px; transform: translateZ(40px); }
.tilt .elem-tag {
  display:inline-flex; align-items:center; gap:8px;
  font-family: var(--font-display); font-size:.66rem; letter-spacing:.22em; text-transform:uppercase;
  color: var(--elem, var(--gold)); margin-bottom: 12px;
}
.tilt .elem-tag .orb { width:9px; height:9px; border-radius:50%; background: var(--elem, var(--gold)); box-shadow: 0 0 12px var(--elem, var(--gold)); }
.tilt h3 { font-size: 1.5rem; margin-bottom: 8px; }
.tilt p { font-size:.92rem; color: var(--mist); font-weight:300;
  max-height:0; opacity:0; overflow:hidden; transition: all .45s var(--ease); }
.tilt:hover p { max-height: 120px; opacity:1; margin-top:6px; }
.tilt .glow-edge {
  position:absolute; inset:0; border-radius:6px; pointer-events:none;
  box-shadow: inset 0 0 0 1px var(--elem, transparent); opacity:0; transition:opacity .4s;
}
.tilt:hover .glow-edge { opacity:.6; }

/* sheen that follows pointer */
.tilt .sheen {
  position:absolute; inset:0; pointer-events:none; opacity:0; transition:opacity .3s;
  background: radial-gradient(circle at var(--mx,50%) var(--my,50%), rgba(255,255,255,.16), transparent 45%);
}
.tilt:hover .sheen { opacity:1; }

/* ============================================================
   FLIP CARDS (archons)
   ============================================================ */
.flip-grid { display:grid; grid-template-columns: repeat(auto-fill,minmax(240px,1fr)); gap:28px; perspective:1400px; }
.flip { height: 400px; perspective:1200px; cursor:pointer; }
.flip-inner { position:relative; width:100%; height:100%; transition: transform .9s var(--ease); transform-style:preserve-3d; }
.flip:hover .flip-inner, .flip.flipped .flip-inner { transform: rotateY(180deg); }
.flip-face {
  position:absolute; inset:0; backface-visibility:hidden; border-radius:6px; overflow:hidden;
  border:1px solid rgba(232,200,126,.18); box-shadow: var(--shadow-deep);
}
.flip-front .media { position:absolute; inset:0; }
.flip-front img { width:100%; height:100%; object-fit:cover; }
.flip-front .scrim { position:absolute; inset:0; background: linear-gradient(180deg, transparent 45%, rgba(6,6,15,.95)); }
.flip-front .cap { position:absolute; inset:auto 0 0 0; padding:24px; }
.flip-front .cap small { font-family:var(--font-display); letter-spacing:.2em; text-transform:uppercase; font-size:.64rem; color: var(--elem,var(--gold)); }
.flip-front .cap h3 { font-size:1.45rem; margin-top:6px; }
.flip-back {
  transform: rotateY(180deg);
  background: linear-gradient(160deg, var(--void-2), var(--void-3));
  padding: 30px; display:flex; flex-direction:column; justify-content:center;
}
.flip-back .elem-mark { font-family:var(--font-decor); font-size:2.2rem; color:var(--elem,var(--gold)); margin-bottom:14px; }
.flip-back h4 { font-size:1.2rem; margin-bottom:12px; color: var(--gold-bright); }
.flip-back p { font-size:.9rem; font-weight:300; color: var(--mist); }
.flip-back .ideal { margin-top:16px; font-family:var(--font-display); font-size:.7rem; letter-spacing:.18em; text-transform:uppercase; color:var(--mist-dim); }

/* ============================================================
   TIMELINE — layered 3D vertical
   ============================================================ */
.timeline { position:relative; max-width: 860px; margin: 0 auto; padding: 20px 0; }
.timeline::before {
  content:''; position:absolute; left: 50%; top:0; bottom:0; width:2px; transform:translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--gold-deep) 8%, var(--gold-deep) 92%, transparent);
}
.epoch { position:relative; width:50%; padding: 30px 44px; }
.epoch:nth-child(odd) { left:0; text-align:right; }
.epoch:nth-child(even) { left:50%; }
.epoch .node {
  position:absolute; top:38px; width:16px; height:16px; border-radius:50%;
  background: var(--gold); box-shadow: 0 0 0 5px rgba(232,200,126,.18), 0 0 22px var(--gold);
}
.epoch:nth-child(odd) .node { right:-9px; }
.epoch:nth-child(even) .node { left:-9px; }
.epoch .card {
  background: linear-gradient(160deg, rgba(26,24,56,.85), rgba(17,17,42,.85));
  border:1px solid rgba(232,200,126,.16); border-radius:6px; padding:24px;
  backdrop-filter: blur(6px); box-shadow: var(--shadow-deep);
  transition: transform .4s var(--ease), box-shadow .4s;
}
.epoch .card:hover { transform: translateY(-6px) scale(1.02); box-shadow: 0 30px 60px -18px rgba(0,0,0,.8); }
.epoch .era { font-family:var(--font-display); font-size:.7rem; letter-spacing:.24em; text-transform:uppercase; color: var(--gold); }
.epoch h3 { font-size:1.35rem; margin:8px 0 10px; }
.epoch p { font-size:.92rem; font-weight:300; color: var(--mist); }

@media (max-width: 720px) {
  .timeline::before { left: 18px; }
  .epoch, .epoch:nth-child(even) { width:100%; left:0; text-align:left; padding-left: 52px; padding-right: 8px; }
  .epoch:nth-child(odd) { text-align:left; }
  .epoch .node, .epoch:nth-child(odd) .node, .epoch:nth-child(even) .node { left: 10px; right:auto; }
}

/* ============================================================
   FEATURE STRIP / mosaic
   ============================================================ */
.mosaic { display:grid; grid-template-columns: repeat(6,1fr); gap:18px; }
.mosaic .cell { position:relative; border-radius:6px; overflow:hidden; min-height:200px;
  border:1px solid rgba(232,200,126,.12); box-shadow: var(--shadow-deep); }
.mosaic .cell img { width:100%; height:100%; object-fit:cover; position:absolute; inset:0; transition: transform .7s var(--ease); }
.mosaic .cell:hover img { transform: scale(1.07); }
.mosaic .cell .lbl { position:absolute; inset:auto 0 0 0; padding:18px;
  background: linear-gradient(transparent, rgba(6,6,15,.9));
  font-family: var(--font-display); font-weight:600; color: var(--ink); letter-spacing:.04em; }
.mosaic .a { grid-column: span 4; min-height: 320px; }
.mosaic .b { grid-column: span 2; }
.mosaic .c { grid-column: span 2; }
.mosaic .d { grid-column: span 2; }
.mosaic .e { grid-column: span 2; }
@media (max-width: 760px){ .mosaic{grid-template-columns:repeat(2,1fr);} .mosaic .a{grid-column:span 2;} .mosaic .b,.mosaic .c,.mosaic .d,.mosaic .e{grid-column:span 1;} }

/* ============================================================
   ARTICLE / lore detail
   ============================================================ */
.article-hero { min-height: 62vh; display:flex; align-items:flex-end; position:relative; overflow:hidden; padding: 140px 0 60px; }
.article-hero .bg { position:absolute; inset:0; z-index:-1; }
.article-hero .bg img { width:100%; height:100%; object-fit:cover; opacity:.45; }
.article-hero .bg::after { content:''; position:absolute; inset:0; background: linear-gradient(180deg, rgba(6,6,15,.5), var(--void-0)); }
.article-hero h1 { font-size: clamp(2.2rem,6vw,4.4rem); max-width: 900px; }
.article-meta { display:flex; gap:24px; margin-top:18px; font-family:var(--font-display); font-size:.74rem; letter-spacing:.16em; text-transform:uppercase; color: var(--mist-dim); }

.prose { max-width: 760px; margin: 0 auto; padding: 70px 0; font-size: 1.08rem; }
.prose p { margin-bottom: 1.5em; color: var(--mist); font-weight:300; }
.prose h2 { font-size: 1.9rem; margin: 1.6em 0 .6em; }
.prose h3 { font-size: 1.35rem; margin: 1.3em 0 .5em; color: var(--gold-bright); }
.prose .drop::first-letter {
  font-family: var(--font-decor); font-size: 3.6em; float:left; line-height:.8;
  padding: 6px 12px 0 0; color: var(--gold);
}
.prose blockquote {
  border-left: 2px solid var(--gold); padding: 8px 0 8px 26px; margin: 2em 0;
  font-style: italic; font-size: 1.2rem; color: var(--gold-bright);
}
.prose figure { margin: 2.4em 0; }
.prose figure img { width:100%; border-radius:6px; box-shadow: var(--shadow-deep); border:1px solid rgba(232,200,126,.14); }
.prose figcaption { text-align:center; font-size:.82rem; color: var(--mist-dim); margin-top:10px; font-family:var(--font-display); letter-spacing:.08em; }

/* ============================================================
   IMAGE PLACEHOLDER (shown until real img loads)
   ============================================================ */
.ph {
  width:100%; height:100%; position:absolute; inset:0;
  background:
    radial-gradient(circle at 30% 30%, rgba(232,200,126,.12), transparent 60%),
    linear-gradient(135deg, var(--void-2), var(--void-3));
  display:grid; place-items:center;
}
.ph .ph-glyph { font-family: var(--font-decor); font-size: 2.4rem; color: rgba(232,200,126,.25); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { border-top: 1px solid rgba(232,200,126,.14); padding: 70px 0 40px; margin-top: 40px; }
.footer-grid { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; }
.footer h5 { font-family: var(--font-display); letter-spacing:.16em; text-transform:uppercase; font-size:.78rem; color: var(--gold); margin-bottom: 18px; }
.footer ul { list-style:none; }
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: var(--mist-dim); font-size:.92rem; }
.footer ul a:hover { color: var(--gold); }
.footer .blurb { font-weight:300; font-size:.94rem; color: var(--mist-dim); max-width: 320px; }
.footer-base { text-align:center; margin-top: 50px; padding-top: 26px; border-top:1px solid rgba(232,200,126,.08);
  font-size:.78rem; color: var(--mist-dim); letter-spacing:.06em; }
@media (max-width:760px){ .footer-grid{grid-template-columns:1fr 1fr;} }

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal { opacity:0; transform: translateY(40px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity:1; transform: none; }
.reveal.d1 { transition-delay:.1s; }
.reveal.d2 { transition-delay:.2s; }
.reveal.d3 { transition-delay:.3s; }
.reveal.d4 { transition-delay:.4s; }

/* utility */
.center { text-align:center; }
.mt-xl { margin-top: 56px; }
.grid-2 { display:grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items:center; }
@media (max-width:820px){ .grid-2{grid-template-columns:1fr;} }