/* Ahlchemy Coin Vault — coin-metal design system (gold · silver · bronze) */
:root {
  /* brand darks + copper (dark vault surfaces, primary copper accents) */
  --emerald-900:#17120C; --emerald-800:#241C12; --emerald-700:#4A3B26;
  --emerald-600:#8A5E28; --emerald-500:#A97A34; --emerald-300:#E6D2A6;
  /* gold */
  --gold-600:#A67C1F; --gold-500:#C9992E; --gold-400:#E3BC4E; --gold-200:#F3E2AC;
  /* silver */
  --silver-600:#767E86; --silver-400:#A9B1B8; --silver-200:#D9DEE2;
  /* bronze / copper */
  --bronze-600:#73421F; --bronze-500:#8A542A; --bronze-300:#C0855A;
  --ink:#1A140D; --paper:#F7F2E8; --card:#ffffff; --muted:#6A6052; --line:#E6DFD0;
  --danger:#b4432f; --warn:#c8871b; --ok:#2e8b57;
  --radius:16px; --radius-sm:10px; --shadow:0 6px 24px rgba(40,26,10,.12);
  --font: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
* { box-sizing:border-box; }
html,body { margin:0; }
body { font-family:var(--font); color:var(--ink); background:var(--paper); -webkit-font-smoothing:antialiased; line-height:1.5; }
a { color:var(--emerald-600); }
h1,h2,h3 { line-height:1.2; margin:0 0 .4em; }
.wrap { max-width:720px; margin:0 auto; padding:0 16px; }

/* Header */
.topbar { background:linear-gradient(135deg,var(--emerald-800),var(--emerald-600)); color:#fff; position:sticky; top:0; z-index:20; box-shadow:var(--shadow); }
.topbar .wrap { display:flex; align-items:center; gap:10px; height:56px; }
.brand { display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:.2px; color:#fff; text-decoration:none; }
.brand .emblem { width:30px; height:30px; }
.brand small { display:block; font-weight:500; font-size:11px; color:var(--gold-200); letter-spacing:.3px; }
.spacer { flex:1; }
.pill { font-size:12px; padding:4px 10px; border-radius:999px; background:var(--silver-400); color:var(--emerald-900); border:1px solid var(--silver-200); font-weight:600; }
.pill.pro { background:var(--gold-500); color:var(--emerald-900); border-color:var(--gold-400); font-weight:700; }

/* Tabs */
.tabs { display:flex; gap:4px; background:var(--emerald-900); position:sticky; top:56px; z-index:19; }
.tabs .wrap { display:flex; gap:4px; padding:0; }
.tab { flex:1; text-align:center; padding:12px 6px; color:var(--emerald-300); font-size:13px; font-weight:600; background:none; border:none; cursor:pointer; border-bottom:3px solid transparent; }
.tab.active { color:#fff; border-bottom-color:var(--gold-500); }

/* Cards */
.card { background:var(--card); border:1px solid var(--line); border-radius:var(--radius); padding:16px; margin:14px 0; box-shadow:var(--shadow); }
.card h2 { font-size:17px; }
.muted { color:var(--muted); }
.small { font-size:13px; }
.center { text-align:center; }

/* Buttons */
.btn { display:inline-flex; align-items:center; justify-content:center; gap:8px; padding:14px 18px; border-radius:var(--radius-sm);
  border:none; font-weight:700; font-size:15px; cursor:pointer; background:linear-gradient(135deg,var(--bronze-500),var(--bronze-600)); color:#fff; width:100%; }
.btn:active { transform:translateY(1px); }
.btn.gold { background:linear-gradient(135deg,var(--gold-500),var(--gold-600)); color:var(--emerald-900); }
.btn.ghost { background:transparent; color:var(--emerald-700); border:1.5px solid var(--emerald-600); }
.btn.sm { padding:9px 12px; font-size:13px; width:auto; }
.btn.danger { background:var(--danger); }
.btn[disabled] { opacity:.5; }
.btnrow { display:flex; gap:10px; }

/* Scan */
.dropzone { border:2px dashed var(--bronze-300); border-radius:var(--radius); padding:26px 16px; text-align:center; background:#F4EEDF; }
.dropzone input { display:none; }
.stage-badge { display:inline-block; font-size:12px; font-weight:700; color:var(--emerald-700); background:#F1E7D0; padding:3px 10px; border-radius:999px; margin-bottom:8px; }
canvas.triage { width:100%; border-radius:var(--radius-sm); background:#111; display:block; }
.candidate-chip { display:inline-block; margin:4px 6px 0 0; padding:6px 10px; font-size:12px; border-radius:999px; background:#F1ECE0; border:1px solid var(--line); cursor:pointer; }
.candidate-chip.flagged { background:#FCF3D9; border-color:var(--gold-400); }

/* Identification result */
.conf { font-size:12px; font-weight:700; padding:2px 8px; border-radius:999px; }
.conf.high { background:#def3e7; color:#166b4a; }
.conf.medium { background:#fcf3d9; color:#8a6410; }
.conf.low, .conf.none { background:#f6ddd6; color:#8a331f; }
.kv { display:flex; justify-content:space-between; padding:7px 0; border-bottom:1px dashed var(--line); font-size:14px; }
.kv:last-child { border-bottom:none; }
.kv b { font-weight:600; }
.unreadable { color:var(--warn); font-style:italic; }
.tip { background:#FFFaef; border:1px solid var(--gold-400); border-radius:var(--radius-sm); padding:10px 12px; font-size:13px; margin-top:10px; }
.flaglist { margin:8px 0 0; padding-left:18px; font-size:13px; }
.flaglist li { margin:3px 0; }

/* Melt panel */
.melt { background:linear-gradient(135deg,var(--emerald-800),var(--emerald-700)); color:#fff; border-radius:var(--radius); padding:16px; }
.melt .big { font-size:30px; font-weight:800; color:var(--gold-400); }
.melt .asof { font-size:11px; color:var(--emerald-300); }
.melt .row { display:flex; justify-content:space-between; font-size:13px; padding:4px 0; border-bottom:1px solid rgba(255,255,255,.08); }
.melt .row:last-child { border-bottom:none; }
.floorbar { height:12px; border-radius:999px; background:var(--gold-500); position:relative; margin:10px 0 4px; overflow:hidden; }
.floorbar .prem { position:absolute; left:0; top:0; bottom:0; background:rgba(255,255,255,.25); }
.stale { background:#c8871b; color:#241a02; font-size:11px; font-weight:700; padding:2px 8px; border-radius:999px; }

/* Collection */
.coin-row { display:flex; gap:12px; align-items:center; padding:10px 0; border-bottom:1px solid var(--line); }
.coin-row img, .coin-thumb { width:52px; height:52px; border-radius:50%; object-fit:cover; background:#EFE8D9; flex:none; }
.coin-row .meta { flex:1; min-width:0; }
.coin-row .meta b { font-size:14px; }
.coin-row .meta .sub { font-size:12px; color:var(--muted); }
.coin-row .val { text-align:right; font-size:13px; }
.coin-row .val .melt { background:none; color:var(--emerald-700); padding:0; font-weight:700; }

/* Pro lock */
.locked { position:relative; }
.lockbadge { font-size:11px; font-weight:700; color:var(--gold-600); border:1px solid var(--gold-400); background:#FFFaef; padding:2px 8px; border-radius:999px; }

/* Forms */
label.fld { display:block; font-size:13px; font-weight:600; margin:10px 0 4px; }
input[type=text], input[type=number], textarea, select { width:100%; padding:11px 12px; border:1px solid var(--line); border-radius:var(--radius-sm); font-size:15px; font-family:inherit; }
.grid2 { display:grid; grid-template-columns:1fr 1fr; gap:10px; }

/* Home / marketing */
.hero { background:linear-gradient(135deg,var(--emerald-800),var(--emerald-600)); color:#fff; padding:40px 0 34px; }
.hero h1 { font-size:30px; }
.hero p { color:var(--gold-200); font-size:16px; }
.feat { display:flex; gap:12px; align-items:flex-start; margin:14px 0; }
.feat .ic { width:34px; height:34px; flex:none; color:var(--gold-500); }
.tiers { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.tier { border:1px solid var(--line); border-radius:var(--radius); padding:16px; background:#fff; }
.tier.pro { border-color:var(--gold-400); background:#fffdf6; }
.tier h3 { color:var(--emerald-700); }
.tier ul { padding-left:18px; margin:8px 0 0; font-size:14px; }
.tier li { margin:5px 0; }
.foot { text-align:center; color:var(--muted); font-size:12px; padding:26px 0; }
.toast { position:fixed; left:50%; bottom:20px; transform:translateX(-50%); background:var(--emerald-800); color:#fff; padding:12px 18px; border-radius:999px; font-size:14px; box-shadow:var(--shadow); opacity:0; pointer-events:none; transition:opacity .2s; z-index:50; }
.toast.show { opacity:1; }
@media (max-width:420px){ .tiers{grid-template-columns:1fr;} }

/* Embedded checkout modal */
.co-overlay{position:fixed;inset:0;z-index:60;background:rgba(26,18,10,.55);backdrop-filter:blur(3px);display:flex;align-items:flex-start;justify-content:center;padding:24px 14px;overflow-y:auto}
.co-overlay[hidden]{display:none}
.co-card{width:100%;max-width:520px;background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.co-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--emerald-800);color:#fff}
.co-x{background:none;border:none;color:#fff;font-size:18px;cursor:pointer;line-height:1}
#checkout{padding:8px}
.co-status{padding:10px 16px;font-size:13px;color:var(--muted)}
.buy-opt{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;background:var(--card);cursor:pointer;width:100%;text-align:left}
.buy-opt:hover{border-color:var(--gold-500)}
.buy-opt .p{font-weight:800;font-size:18px;color:var(--emerald-700)}
.buy-opt .n{font-size:12px;color:var(--muted)}
.buy-opt.best{border-color:var(--gold-500);background:#fffdf6}

/* --- R0.5: collector-value comps (link-out) --- */
.complinks{margin-top:14px;padding:12px;border:1px solid var(--emerald-300,#E6D2A6);border-radius:12px;background:rgba(0,0,0,.02)}
.complinks-h{font-weight:700;margin-bottom:2px}
.comp-link{display:flex;flex-direction:column;gap:1px;padding:9px 11px;margin-top:7px;border:1px solid var(--line);border-radius:10px;text-decoration:none;color:inherit}
.comp-link:hover{border-color:var(--gold-600,#A67C1F)}
.comp-link.primary{border-color:var(--gold-600,#A67C1F);background:rgba(201,153,46,.08)}
.comp-link .cl-label{font-weight:600;color:var(--emerald-700,#4A3B26)}
.comp-link .cl-note{font-size:11px;color:var(--muted,#6A6052)}
.sub-link{display:inline-block;margin-top:3px;font-size:11px;color:var(--emerald-700,#4A3B26);text-decoration:none}
.sub-link:hover{text-decoration:underline}
/* --- R0.5: weigh-assist (weight-discriminated varieties) --- */
.weigh{margin-top:12px;padding:12px;border:1px dashed var(--gold-600,#A67C1F);border-radius:12px;background:rgba(201,153,46,.07)}
.weigh-h{font-weight:700}
.weigh-row{display:flex;gap:8px;align-items:center}
.weigh-row input{flex:1;min-width:0}

/* --- R0.5: home hero image --- */
.hero-img{display:block;width:100%;max-width:760px;margin:22px auto 0;height:auto}