/* ============================================================
   Aurum — private bullion desk
   Aesthetic: obsidian ink, gold leaf, hairline rules, tabular figures.
   ============================================================ */

:root {
  --ink:        #0a0b0e;
  --ink-2:      #101218;
  --panel:      #14161d;
  --panel-2:    #181b23;
  --line:       rgba(212, 175, 55, 0.14);
  --line-soft:  rgba(255, 255, 255, 0.06);

  --gold:       #d4af37;
  --gold-soft:  #e8c766;
  --gold-bright:#f7e08a;
  --silver:     #c7ccd6;
  --silver-soft:#e7ebf2;

  --txt:        #eef0f4;
  --txt-dim:    #9aa0ad;
  --txt-faint:  #5d626d;

  --up:         #54c98a;
  --down:       #e2696b;

  --r:          16px;
  --r-sm:       10px;

  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --ui:   'Hanken Grotesk', system-ui, sans-serif;
  --disp: 'Fraunces', Georgia, serif;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--ui);
  color: var(--txt);
  background: var(--ink);
  min-height: 100vh;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
  background-image:
    radial-gradient(1200px 600px at 78% -10%, rgba(212,175,55,0.10), transparent 60%),
    radial-gradient(900px 500px at 0% 110%, rgba(120,130,160,0.07), transparent 55%);
  background-attachment: fixed;
}

/* fine film grain for depth */
body::after {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  opacity: 0.025;
  z-index: 9999;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 22px 60px;
}

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 26px;
}

.brand { display: flex; align-items: center; gap: 14px; }

.brand .mark {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: linear-gradient(150deg, #1c1d22, #0c0d10);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}
.brand .mark svg { width: 24px; height: 24px; }

.brand h1 {
  font-family: var(--disp);
  font-optical-sizing: auto;
  font-weight: 600;
  font-size: 1.55rem;
  letter-spacing: -0.02em;
  line-height: 1;
  background: linear-gradient(90deg, var(--gold-bright), var(--gold) 60%, #b9962b);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand .sub {
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--txt-faint);
  margin-top: 3px;
}

.topbar-right { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }

.fx {
  display: flex; gap: 18px;
}
.fx .rate {
  text-align: right;
  font-size: 0.7rem;
  color: var(--txt-dim);
  letter-spacing: 0.04em;
}
.fx .rate b {
  display: block;
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--txt);
  font-weight: 500;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.status {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--txt-dim);
  padding: 7px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 100px;
  white-space: nowrap;
}
.status .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--txt-faint);
  box-shadow: 0 0 0 0 rgba(84,201,138,0.5);
}
.status.live .dot {
  background: var(--up);
  animation: pulse 2s infinite;
}
.status.down .dot { background: var(--down); }
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(84,201,138,0.45); }
  70%  { box-shadow: 0 0 0 7px rgba(84,201,138,0); }
  100% { box-shadow: 0 0 0 0 rgba(84,201,138,0); }
}

/* ---------- currency switch ---------- */
.controls {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  margin-bottom: 22px;
}
.controls .legend {
  font-size: 0.72rem; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--txt-faint);
}
.seg {
  display: inline-flex;
  padding: 4px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: 100px;
}
.seg button {
  font-family: var(--ui);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--txt-dim);
  background: none; border: none; cursor: pointer;
  padding: 7px 16px;
  border-radius: 100px;
  transition: color 0.2s, background 0.2s;
}
.seg button.active {
  color: var(--ink);
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  box-shadow: 0 2px 10px rgba(212,175,55,0.25);
}
.seg.silver button.active {
  background: linear-gradient(180deg, var(--silver-soft), var(--silver));
}

/* ---------- panel grid ---------- */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
@media (max-width: 880px) { .grid { grid-template-columns: 1fr; } }

.panel {
  position: relative;
  background:
    linear-gradient(180deg, var(--panel) 0%, var(--ink-2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 22px 8px;
  overflow: hidden;
  box-shadow: 0 24px 60px -30px rgba(0,0,0,0.8);
}
.panel.gold   { --accent: var(--gold); }
.panel.silver { --accent: var(--silver); }

.panel.flash { animation: flash 0.6s ease; }
@keyframes flash {
  0%,100% { box-shadow: 0 24px 60px -30px rgba(0,0,0,0.8); }
  40%     { box-shadow: 0 0 0 1px var(--accent), 0 24px 70px -24px rgba(212,175,55,0.35); }
}

.panel-head {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 16px;
}
.panel-head .name {
  font-family: var(--disp);
  font-weight: 500;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  color: var(--accent);
  display: flex; align-items: center; gap: 9px;
}
.panel-head .name .sym {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--txt-faint);
  border: 1px solid var(--line-soft);
  padding: 3px 7px; border-radius: 6px;
  margin-top: 2px;
}
.src-tag {
  font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--txt-faint);
}
.src-tag b { color: var(--txt-dim); font-weight: 600; }

/* spot block */
.spot {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 4px;
}
.spot .val {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  color: var(--txt);
  transition: color 0.4s;
}
.spot .val .cur { font-size: 1rem; color: var(--txt-faint); font-weight: 400; margin-right: 4px; }
.spot .unit { font-size: 0.72rem; color: var(--txt-faint); letter-spacing: 0.1em; text-transform: uppercase; }

.change {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono); font-size: 0.82rem; font-variant-numeric: tabular-nums;
  padding: 3px 9px; border-radius: 7px; margin-bottom: 14px;
  color: var(--txt-dim);
  background: rgba(255,255,255,0.03);
}
.change.up   { color: var(--up);   background: rgba(84,201,138,0.10); }
.change.down { color: var(--down); background: rgba(226,105,107,0.10); }
.change .arrow { font-size: 0.7rem; }

.spark { width: 100%; height: 40px; display: block; margin-bottom: 14px; opacity: 0.9; }

/* unit selector */
.units {
  display: flex; gap: 4px; flex-wrap: wrap;
  margin-bottom: 12px;
}
.units button {
  font-family: var(--mono);
  font-size: 0.7rem; letter-spacing: 0.02em;
  color: var(--txt-dim);
  background: var(--panel-2);
  border: 1px solid var(--line-soft);
  border-radius: 7px; cursor: pointer;
  padding: 6px 10px;
  transition: all 0.18s;
}
.units button:hover { color: var(--txt); border-color: var(--line); }
.units button.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(212,175,55,0.07);
}
.panel.silver .units button.active { background: rgba(199,204,214,0.08); }

/* matrix table */
table.matrix {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 6px;
}
table.matrix thead th {
  font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--txt-faint); font-weight: 600;
  text-align: right;
  padding: 8px 6px 10px;
  border-bottom: 1px solid var(--line);
}
table.matrix thead th:first-child { text-align: left; }
table.matrix tbody td {
  padding: 11px 6px;
  border-bottom: 1px solid var(--line-soft);
  text-align: right;
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  font-size: 0.95rem;
  color: var(--txt);
  transition: color 0.45s;
}
table.matrix tbody tr:last-child td { border-bottom: none; }
table.matrix tbody td.label {
  text-align: left;
  font-family: var(--ui);
  font-size: 0.86rem;
  color: var(--txt-dim);
  letter-spacing: 0;
}
table.matrix tbody td.label b { color: var(--txt); font-weight: 600; }
table.matrix tbody td.label span { color: var(--txt-faint); font-size: 0.72rem; }
table.matrix tbody tr.hi td { background: linear-gradient(90deg, transparent, rgba(212,175,55,0.05)); }
table.matrix tbody td .cur { color: var(--txt-faint); font-size: 0.7em; margin-right: 3px; }

.tick-up   { color: var(--up) !important; }
.tick-down { color: var(--down) !important; }

.panel-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 0 14px;
  font-size: 0.68rem; color: var(--txt-faint);
  letter-spacing: 0.03em;
}

/* footer */
.foot {
  margin-top: 34px; padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: 0.7rem; color: var(--txt-faint); letter-spacing: 0.04em;
}
.foot a { color: var(--gold); text-decoration: none; }
.foot a:hover { color: var(--gold-bright); }
.foot .credit { color: var(--txt-faint); letter-spacing: 0.04em; }

/* ---------- SEO / crawlable content ---------- */
.seo {
  margin-top: 30px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  color: var(--txt-dim);
}
.seo h2 {
  font-family: var(--disp);
  font-weight: 500;
  font-size: 1.25rem;
  color: var(--txt);
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.seo h3 {
  font-family: var(--ui);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--txt);
  margin: 18px 0 8px;
}
.seo p { font-size: 0.9rem; line-height: 1.7; margin-bottom: 12px; max-width: 70ch; }
.seo .summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin: 16px 0 6px;
}
.seo .summary .row {
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  padding: 12px 14px;
}
.seo .summary .row .k { display: block; font-size: 0.74rem; color: var(--txt-faint); letter-spacing: 0.04em; }
.seo .summary .row .v {
  display: block;
  font-family: var(--mono); font-variant-numeric: tabular-nums;
  font-size: 0.95rem; color: var(--txt); margin-top: 5px;
}
.seo .updated { font-size: 0.72rem; color: var(--txt-faint); margin-top: 4px; }
.seo details {
  border-bottom: 1px solid var(--line-soft);
  padding: 10px 0;
}
.seo details summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--txt);
  font-size: 0.9rem;
  list-style: none;
}
.seo details summary::-webkit-details-marker { display: none; }
.seo details summary::before { content: "+ "; color: var(--gold); }
.seo details[open] summary::before { content: "– "; }
.seo details p { margin: 8px 0 2px; color: var(--txt-dim); }
.seo a { color: var(--gold); text-decoration: none; }
.install {
  font-family: var(--ui); font-size: 0.74rem; font-weight: 600; letter-spacing: 0.04em;
  color: var(--ink); cursor: pointer;
  background: linear-gradient(180deg, var(--gold-soft), var(--gold));
  border: none; border-radius: 100px; padding: 9px 18px;
  display: none;
}
.install.show { display: inline-block; }

@media (max-width: 540px) {
  .brand h1 { font-size: 1.25rem; }
  .spot .val { font-size: 2rem; }
  .fx { gap: 12px; }
  .wrap { padding: 20px 14px 50px; }
  .panel { padding: 18px 16px 6px; }
  table.matrix tbody td { font-size: 0.85rem; padding: 10px 4px; }
}