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

:root {
  --obsidian: #000000;
  --near: #040302;
  --deep: #080604;
  --vault: #100c06;
  --gold: #c8960a;
  --gold-bright: #f0c030;
  --gold-pale: #f8e080;
  --gold-deep: #804800;
  --royal: #e0a020;
  --sheen: rgba(200,150,10,0.12);
  --border: rgba(200,150,10,0.2);
  --text: #806030;
  --text-bright: #d4a840;
  --text-dim: #302010;
  --white: #f8f0d8;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
body{font-family:'EB Garamond',serif;background:var(--obsidian);color:var(--text);min-height:100vh;overflow-x:hidden;}
#or-canvas{position:fixed;inset:0;z-index:0;pointer-events:none;}
body::before{content:'Au';position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);font-family:'Cinzel',serif;font-size:42vw;font-weight:900;opacity:0.018;z-index:1;pointer-events:none;color:var(--gold);}
.wrap{position:relative;z-index:2;max-width:1020px;margin:0 auto;padding:0 28px 90px;}

/* ── HERO ── */
.hero{padding:80px 0 64px;display:grid;grid-template-columns:1fr 260px;gap:48px;align-items:center;border-bottom:1px solid var(--border);margin-bottom:60px;}
.hero-tag{font-family:'Cinzel',serif;font-size:0.55rem;letter-spacing:5px;text-transform:uppercase;color:var(--gold);opacity:0.5;margin-bottom:18px;}
.hero h1{font-family:'Cinzel',serif;font-size:clamp(5rem,14vw,10rem);font-weight:900;line-height:0.85;
  background:linear-gradient(180deg,var(--gold-pale) 0%,var(--gold-bright) 40%,var(--gold) 70%,var(--gold-deep) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  letter-spacing:2px;text-transform:uppercase;}
.hero h1 em{display:block;font-size:0.2em;font-style:normal;font-weight:400;letter-spacing:6px;color:var(--text-dim);-webkit-text-fill-color:var(--text-dim);margin-top:14px;font-family:'Cinzel',serif;text-transform:uppercase;}
.hero-desc{font-size:1.05rem;line-height:1.9;color:var(--text);font-weight:400;margin-top:18px;font-style:italic;}

/* ── Periodic card (ingot style) ── */
.periodic-card{
  width:240px;height:240px;
  background:linear-gradient(135deg,#0a0700,#1a1005,#0a0700);
  border:1px solid var(--gold);
  border-radius:3px;padding:18px;
  display:flex;flex-direction:column;justify-content:space-between;
  position:relative;overflow:hidden;
  box-shadow:0 0 20px rgba(200,150,10,0.2),0 0 60px rgba(200,150,10,0.06),inset 0 1px 0 rgba(240,192,48,0.15);}
.periodic-card::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 40% 35%,rgba(240,192,48,0.12),transparent 60%);}
.pc-num{font-family:'Cinzel',serif;font-size:0.9rem;color:rgba(200,150,10,0.5);}
.pc-symbol{font-family:'Cinzel',serif;font-size:5rem;font-weight:900;line-height:1;text-align:center;
  background:linear-gradient(180deg,var(--gold-pale),var(--gold-bright),var(--gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.pc-name{font-family:'Cinzel',serif;font-size:0.8rem;color:var(--gold);text-align:center;letter-spacing:3px;text-transform:uppercase;}
.pc-mass{font-size:0.7rem;color:rgba(200,150,10,0.35);text-align:right;font-family:'Didact Gothic',sans-serif;}

/* ── Stats ── */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(148px,1fr));border:1px solid var(--border);overflow:hidden;margin-bottom:58px;}
.stat{padding:18px 14px;background:var(--near);border-right:1px solid var(--border);transition:background 0.2s;}
.stat:last-child{border-right:none;} .stat:hover{background:var(--sheen);}
.s-label{font-family:'Cinzel',serif;font-size:0.5rem;letter-spacing:3px;text-transform:uppercase;color:var(--gold);opacity:0.5;margin-bottom:7px;}
.s-value{font-size:1.05rem;font-weight:500;color:var(--gold-pale);line-height:1.1;}
.s-unit{font-size:0.6rem;color:var(--text-dim);font-family:'Didact Gothic',sans-serif;}

/* ── Sections ── */
.section{margin-bottom:56px;opacity:0;transform:translateY(18px);transition:opacity 0.7s,transform 0.7s;}
.section.visible{opacity:1;transform:none;}
.sh{display:flex;align-items:baseline;gap:14px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border);}
.sn{font-family:'Cinzel',serif;font-size:0.5rem;letter-spacing:3px;color:var(--gold);opacity:0.35;}
.section h2{font-family:'Cinzel',serif;font-size:1.5rem;font-weight:700;color:var(--gold-pale);letter-spacing:2px;text-transform:uppercase;}
p{font-size:1rem;line-height:1.9;color:var(--text);font-weight:400;margin-bottom:14px;}
strong{color:var(--text-bright);font-weight:500;}

/* ── Properties of gold ── */
.gold-props{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-top:18px;}
.gp-card{background:var(--vault);border:1px solid var(--border);border-top:1px solid rgba(240,192,48,0.4);padding:20px;transition:background 0.2s;}
.gp-card:hover{background:var(--sheen);}
.gp-card h3{font-family:'Cinzel',serif;font-size:0.82rem;color:var(--gold);margin-bottom:8px;letter-spacing:1px;}
.gp-card p{font-size:0.82rem;margin:0;line-height:1.6;}

/* ── Alloys ── */
.alloys-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:0;border:1px solid var(--border);overflow:hidden;margin-top:18px;border-radius:2px;}
.alloy{padding:18px 16px;background:var(--near);border-right:1px solid var(--border);text-align:center;transition:background 0.2s;}
.alloy:last-child{border-right:none;} .alloy:hover{background:var(--sheen);}
.alloy-karat{font-family:'Cinzel',serif;font-size:1.6rem;font-weight:900;display:block;margin-bottom:4px;
  background:linear-gradient(180deg,var(--gold-pale),var(--gold));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.alloy-name{font-size:0.7rem;color:var(--text-dim);letter-spacing:2px;text-transform:uppercase;font-family:'Cinzel',serif;display:block;margin-bottom:4px;}
.alloy-comp{font-size:0.72rem;color:var(--text);}

/* ── Uses ── */
.uses-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px;margin-top:18px;}
.use-card{background:var(--vault);border:1px solid var(--border);border-left:1px solid rgba(240,192,48,0.4);padding:16px;transition:background 0.2s;}
.use-card:hover{background:var(--sheen);}
.use-card h3{font-family:'Cinzel',serif;font-size:0.78rem;color:var(--gold);letter-spacing:1px;margin-bottom:6px;text-transform:uppercase;}
.use-card p{font-size:0.8rem;margin:0;line-height:1.55;}

/* ── History ── */
.hist-box{background:var(--vault);border:1px solid var(--border);padding:26px 28px;margin-top:18px;}
.hist-box h3{font-family:'Cinzel',serif;font-size:0.85rem;color:var(--gold);text-transform:uppercase;letter-spacing:2px;margin-bottom:14px;}
.hist-box p{margin:0 0 12px;} .hist-box p:last-child{margin:0;}

.footer-band{margin-top:70px;border-top:1px solid var(--border);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.footer-band span{font-family:'Cinzel',serif;font-size:0.48rem;letter-spacing:2px;color:var(--text-dim);text-transform:uppercase;}
@media(max-width:640px){.hero{grid-template-columns:1fr;} .periodic-card{width:180px;height:180px;margin:0 auto;}}