/* ============================================================
   CuratedLux — "Provenance" Design System
   Minimalist Monochrome Editorial — auction-catalog aesthetic
   Pure black/white, zero radius, no shadows, hairline rules,
   instant tap-inversion, single oxblood accent used as a "seal".
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,900;1,400;1,600&family=Source+Serif+4:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --ink:#0a0a0a;
  --paper:#fbfaf7;
  --paper-2:#f2f0ea;
  --line:#0a0a0a;
  --line-hair:#d8d5cc;
  --seal:#6e1423;      /* oxblood — the single accent, used like a wax seal / ink stamp */
  --seal-ink:#4a0d18;
  --mono-dim:#6b6b63;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Source Serif 4', serif;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,video{max-width:100%;display:block;}

/* Typography */
.display{
  font-family:'Playfair Display', serif;
  font-weight:900;
  letter-spacing:-0.02em;
  line-height:0.92;
  margin:0;
}
.display.italic{font-style:italic; font-weight:600;}
.mono{
  font-family:'JetBrains Mono', monospace;
  letter-spacing:0.12em;
  text-transform:uppercase;
  font-weight:500;
}
.mono-tight{letter-spacing:0.04em; text-transform:none;}
.lede{
  font-family:'Source Serif 4', serif;
  font-weight:300;
  font-style:italic;
  line-height:1.5;
}

/* Zero radius, no shadow, hairline everywhere */
button, .btn, input, textarea, select, .card, .thumb{
  border-radius:0 !important;
  box-shadow:none !important;
}

/* Buttons — instant color inversion, no easing on tap (deliberate, mechanical) */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.6rem;
  font-family:'JetBrains Mono', monospace;
  font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  font-size:.72rem;
  padding:1.05rem 1.6rem;
  border:1.5px solid var(--ink);
  background:var(--ink); color:var(--paper);
  cursor:pointer;
  min-height:44px;
  transition:none; /* instant, not eased — matches "mechanical" editorial spec */
  user-select:none;
}
.btn:active{ background:var(--paper); color:var(--ink); }
.btn.ghost{ background:transparent; color:var(--ink); }
.btn.ghost:active{ background:var(--ink); color:var(--paper); }
.btn.seal{ border-color:var(--seal); background:var(--seal); color:var(--paper); }
.btn.seal:active{ background:var(--paper); color:var(--seal); }
.btn.block{ width:100%; }
.btn.lg{ padding:1.3rem 1.8rem; font-size:.8rem; }

/* Hairline rule (section divider) */
.rule{ height:1px; background:var(--line); border:0; margin:0; }
.rule-thick{ height:3px; background:var(--line); border:0; margin:0; }
.rule-hair{ height:1px; background:var(--line-hair); border:0; margin:0; }

/* Layout helpers */
.wrap{ max-width:1180px; margin:0 auto; padding:0 1.5rem; }
.section{ padding:5rem 0; }
@media (max-width:768px){ .section{ padding:3rem 0; } }

/* Nav */
.nav{
  position:sticky; top:0; z-index:40; background:var(--paper);
  border-bottom:1.5px solid var(--ink);
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; padding:1.1rem 1.5rem; }
.nav-mark{ font-family:'Playfair Display', serif; font-weight:900; font-size:1.3rem; letter-spacing:-0.01em; }
.nav-mark .seal-dot{ color:var(--seal); }
.nav-links{ display:flex; gap:1.6rem; align-items:center; }
.nav-links a{ font-family:'JetBrains Mono', monospace; font-size:.7rem; letter-spacing:.1em; text-transform:uppercase; color:var(--ink); text-decoration:none; }
@media (max-width:640px){ .nav-links{ display:none; } }

/* Hero */
.hero{ padding:4.5rem 0 3rem; border-bottom:1.5px solid var(--ink); }
.hero-tag{ font-size:.72rem; color:var(--mono-dim); margin-bottom:1.4rem; display:flex; align-items:center; gap:.6rem;}
.hero-tag .dot{ width:6px; height:6px; background:var(--seal); display:inline-block; }
.hero h1{ font-size:clamp(2.6rem, 8vw, 6.2rem); }
.hero .lede{ max-width:32rem; margin-top:1.6rem; font-size:1.15rem; color:#2a2a26; }
.hero-cta{ display:flex; gap:.9rem; margin-top:2.2rem; flex-wrap:wrap; }

/* Stat strip — mono ledger row */
.stats{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1.5px solid var(--ink); }
.stat{ padding:1.6rem 1.2rem; border-right:1px solid var(--line-hair); }
.stat:last-child{ border-right:0; }
.stat .num{ font-family:'Playfair Display', serif; font-weight:700; font-size:2.1rem; }
.stat .lbl{ font-family:'JetBrains Mono', monospace; font-size:.65rem; letter-spacing:.1em; text-transform:uppercase; color:var(--mono-dim); margin-top:.3rem; }
@media (max-width:768px){ .stats{ grid-template-columns:repeat(2,1fr); } .stat:nth-child(2){ border-right:0; } }

/* Numbered editorial steps */
.steps{ counter-reset:step; }
.step{ display:grid; grid-template-columns:5rem 1fr; gap:1.6rem; padding:2.2rem 0; border-top:1px solid var(--line-hair); }
.step:first-child{ border-top:1.5px solid var(--ink); }
.step-num{ font-family:'Playfair Display', serif; font-weight:700; font-size:2.4rem; color:var(--seal); }
.step h3{ font-family:'Playfair Display', serif; font-weight:700; font-size:1.5rem; margin:0 0 .5rem; }
.step p{ color:#3a3a35; margin:0; max-width:34rem; }

/* Category grid — asset types as a museum catalog index */
.cat-grid{ display:grid; grid-template-columns:repeat(5,1fr); border-top:1.5px solid var(--ink); border-left:1.5px solid var(--ink); }
.cat{ border-right:1.5px solid var(--ink); border-bottom:1.5px solid var(--ink); padding:2rem 1.2rem; cursor:pointer; }
.cat:active, .cat.active{ background:var(--ink); color:var(--paper); }
.cat .idx{ font-family:'JetBrains Mono', monospace; font-size:.65rem; color:var(--seal); }
.cat.active .idx{ color:var(--paper); }
.cat h4{ font-family:'Playfair Display', serif; font-weight:700; font-size:1.15rem; margin:.6rem 0 0; }
@media (max-width:768px){ .cat-grid{ grid-template-columns:repeat(2,1fr); } }

/* ── Certificate / Lot page ── */
.lot{ border:1.5px solid var(--ink); padding:0; background:var(--paper); }
.lot-head{ padding:1.6rem 1.8rem; border-bottom:1.5px solid var(--ink); display:flex; justify-content:space-between; align-items:flex-start; gap:1rem;}
.lot-num{ font-family:'JetBrains Mono', monospace; font-size:.75rem; letter-spacing:.1em; color:var(--mono-dim); }
.lot-title{ font-family:'Playfair Display', serif; font-weight:700; font-size:1.9rem; margin:.3rem 0 0; }
.lot-sub{ font-family:'JetBrains Mono', monospace; font-size:.72rem; color:var(--mono-dim); margin-top:.4rem; }

/* Stamp — the signature creative flourish: rotated ink-stamp seal */
.stamp-wrap{ position:relative; width:120px; height:120px; flex-shrink:0; }
.stamp{
  position:absolute; inset:0;
  border:3px solid var(--seal);
  border-radius:50%; /* the ONE deliberate exception — a genuine ink-stamp is circular */
  display:flex; align-items:center; justify-content:center;
  transform:rotate(-14deg);
  color:var(--seal);
}
.stamp::before{
  content:''; position:absolute; inset:7px; border:1px solid var(--seal); border-radius:50%;
}
.stamp span{
  font-family:'JetBrains Mono', monospace; font-weight:700; font-size:.68rem;
  letter-spacing:.08em; text-align:center; line-height:1.3; text-transform:uppercase;
}
.stamp.review{ border-color:#8a7a3a; color:#8a7a3a; }
.stamp.review::before{ border-color:#8a7a3a; }

.lot-body{ padding:1.8rem; display:grid; grid-template-columns:1fr 1fr; gap:2rem; }
@media (max-width:640px){ .lot-body{ grid-template-columns:1fr; } .lot-head{ flex-direction:column; } }
.spec-row{ display:flex; justify-content:space-between; padding:.65rem 0; border-bottom:1px solid var(--line-hair); font-size:.92rem; }
.spec-row .k{ font-family:'JetBrains Mono', monospace; font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; color:var(--mono-dim); }
.spec-row .v{ font-family:'Source Serif 4', serif; text-align:right; }

.confidence-bar{ height:6px; background:var(--paper-2); border:1px solid var(--line); position:relative; margin-top:.3rem;}
.confidence-fill{ height:100%; background:var(--ink); }

/* ── Mobile capture screen mock ── */
.phone-frame{
  max-width:390px; margin:0 auto;
  border:10px solid var(--ink);
  aspect-ratio:390/844;
  background:#000;
  position:relative; overflow:hidden;
}
.cam-view{ position:absolute; inset:0; background:linear-gradient(180deg,#1a1a1a,#000); }
.cam-hud-top{ position:absolute; top:0; left:0; right:0; padding:1rem; display:flex; justify-content:space-between; z-index:5;}
.cam-pill{ font-family:'JetBrains Mono', monospace; font-size:.62rem; letter-spacing:.08em; color:#fff; background:rgba(0,0,0,.55); border:1px solid rgba(255,255,255,.5); padding:.35rem .7rem; text-transform:uppercase; }
.reticle{ position:absolute; top:50%; left:50%; transform:translate(-50%,-50%); width:150px; height:150px; border:1.5px solid rgba(255,255,255,.55); border-radius:50%; }

.thumb-rail{ position:absolute; top:3.4rem; right:.8rem; display:flex; flex-direction:column; gap:.4rem; z-index:6; }
.thumb{ width:42px; height:42px; border:1.5px solid #fff; background:#333; position:relative; }
.thumb::after{ content:'✓'; position:absolute; top:-6px; right:-6px; width:16px; height:16px; background:var(--seal); color:#fff; font-size:.55rem; display:flex; align-items:center; justify-content:center; font-family:'JetBrains Mono',monospace; }

.dock{ position:absolute; left:0; right:0; bottom:0; background:var(--paper); border-top:1.5px solid #000; padding:1rem 1.1rem 1.2rem; z-index:8; }
.dock-progress{ display:flex; justify-content:space-between; align-items:center; padding:.7rem .9rem; border:1.5px solid var(--ink); margin-bottom:.8rem; }
.dock-progress .count{ font-family:'Playfair Display', serif; font-weight:900; font-size:1.15rem; }
.dock-progress .rem{ font-family:'JetBrains Mono', monospace; font-size:.62rem; letter-spacing:.06em; color:var(--mono-dim); text-transform:uppercase; }
.dock-progress.done .rem{ color:var(--seal); }
.dock-instr{ font-family:'Playfair Display', serif; font-weight:600; font-size:1rem; margin:0 0 .8rem; }
.dock-row{ display:flex; gap:.5rem; margin-top:.6rem; }
.dock-row .btn{ flex:1; padding:.85rem .5rem; font-size:.62rem; }

/* Footer */
.foot{ border-top:1.5px solid var(--ink); padding:2.4rem 0; }
.foot .mono{ color:var(--mono-dim); font-size:.68rem; }

/* nav dots for page-switch preview */
.pagejump{ position:fixed; bottom:1.2rem; right:1.2rem; z-index:50; display:flex; gap:.5rem; }
.pagejump a{ font-family:'JetBrains Mono',monospace; font-size:.65rem; letter-spacing:.08em; text-transform:uppercase; background:var(--ink); color:var(--paper); padding:.6rem 1rem; text-decoration:none; border:1.5px solid var(--ink); }
.pagejump a.active{ background:var(--paper); color:var(--ink); }