:root {
  --black: #0b0b0c;
  --panel: #141416;
  --panel-2: #1c1b1e;
  --ivory: #f4eedd;
  --muted: #bbb4a2;
  --gold: #d4af5a;
  --gold-light: #f1d58a;
  --gold-dark: #8c6b22;
  --line: rgba(212, 175, 90, 0.32);
  --serif: Baskerville, "Baskerville Old Face", "Libre Baskerville", "Hoefler Text", Garamond, "Times New Roman", serif;
  --gutter: clamp(16px, 4vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--black); color: var(--ivory); font: 400 1.125rem/1.6 var(--serif); }
[hidden] { display: none !important; }
a { color: var(--gold-light); text-underline-offset: 0.2em; }
h1, h2, h3 { margin: 0; font-weight: 400; line-height: 1.1; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--gold-light); outline-offset: 3px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: var(--gutter); top: -80px; z-index: 20; background: var(--gold); color: var(--black); padding: 0.6rem 1rem; }
.skip:focus { top: 12px; }

.small-caps { font-variant: small-caps; text-transform: lowercase; letter-spacing: 0.16em; color: var(--gold); font-size: 1.05rem; }

/* Header */
.site-header {
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 0.5rem 1.5rem;
  padding: 18px var(--gutter); border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 0.6rem; color: var(--ivory); text-decoration: none; font-size: 1.35rem; letter-spacing: 0.12em; }
.brand svg { width: 30px; height: 30px; }
.slash { color: var(--gold); padding: 0 0.15em; }
.site-header ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; margin: 0; padding: 0; list-style: none; }
.site-header nav a { color: var(--ivory); text-decoration: none; font-variant: small-caps; text-transform: lowercase; letter-spacing: 0.12em; }
.site-header nav a:hover { color: var(--gold-light); }
.header-note { font-variant: small-caps; text-transform: lowercase; letter-spacing: 0.14em; color: var(--muted); }

/* Split */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); min-height: calc(100vh - 70px); border-bottom: 1px solid var(--line); }
.left { padding: clamp(36px, 6vw, 88px) var(--gutter); }
.right {
  display: grid; place-items: center; padding: clamp(28px, 5vw, 64px) var(--gutter);
  background:
    radial-gradient(60% 50% at 50% 40%, rgba(212, 175, 90, 0.16), transparent 70%),
    var(--panel);
  border-left: 1px solid var(--line);
}
.left h1 { font-size: clamp(2.3rem, 4.8vw, 4rem); margin: 0.9rem 0 1.2rem; letter-spacing: -0.01em; }
.lede { color: var(--muted); max-width: 44ch; }

.inputs { margin-top: 2.25rem; display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem 1.75rem; }
.field label, .holdings legend { display: block; font-variant: small-caps; text-transform: lowercase; letter-spacing: 0.12em; color: var(--gold); font-size: 1.05rem; margin-bottom: 0.35rem; padding: 0; }
.field label span, .holdings legend span { color: var(--muted); letter-spacing: 0.06em; }
.money { display: flex; align-items: baseline; gap: 0.5rem; border-bottom: 1px solid var(--gold); }
.money:focus-within { border-bottom-color: var(--gold-light); box-shadow: 0 1px 0 var(--gold-light); }
.money input, .field-ccy input {
  flex: 1; min-width: 0; width: 100%; background: transparent; border: 0; color: var(--ivory);
  font: 400 clamp(1.5rem, 3vw, 2rem)/1.3 var(--serif); font-variant-numeric: lining-nums tabular-nums; padding: 0.2rem 0;
}
.money input:focus, .field-ccy input:focus { outline: none; }
.money input::placeholder { color: #6f6a5e; }
.money input[aria-invalid="true"] { color: #ff9b8a; }
.ccy, .unit { color: var(--muted); font-size: 0.95rem; letter-spacing: 0.1em; }
.field-ccy input { border-bottom: 1px solid var(--line); font-size: 1.3rem; text-transform: uppercase; letter-spacing: 0.16em; max-width: 8ch; }
.field-ccy input:focus-visible { border-bottom-color: var(--gold-light); }
.holdings { grid-column: 1 / -1; border: 1px solid var(--line); padding: 1.1rem 1.25rem 1.3rem; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem 1.75rem; min-width: 0; }
.holdings legend { padding: 0 0.4rem; margin-left: -0.4rem; }
.privacy { grid-column: 1 / -1; color: var(--muted); font-size: 0.95rem; font-style: italic; }

.scale-figure { margin: 0; width: 100%; max-width: 520px; text-align: center; }
#scale { width: 100%; height: auto; display: block; overflow: visible; }
.beam { transform-box: view-box; transform-origin: 200px 104px; transition: transform 1.1s cubic-bezier(0.34, 1.4, 0.64, 1); }
.pan { transition: transform 1.1s cubic-bezier(0.34, 1.4, 0.64, 1); }
.coin-text { font: 700 13px var(--serif); letter-spacing: 1px; fill: var(--gold-light); }
#scale-caption { margin-top: 1.25rem; color: var(--muted); font-style: italic; min-height: 3.2em; }

/* Results */
.results {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 2rem clamp(24px, 5vw, 72px); align-items: end;
  padding: clamp(40px, 6vw, 80px) var(--gutter); border-bottom: 1px solid var(--line);
}
.big {
  font-size: clamp(3rem, 9vw, 6.5rem); line-height: 1; margin-top: 0.4rem; font-variant-numeric: lining-nums;
  background: linear-gradient(180deg, #f6e2a2, #d4af5a 55%, #a7843a);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  overflow-wrap: anywhere;
}
.big span { font-size: 0.35em; letter-spacing: 0.1em; }
.figures { margin: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.figures div { padding: 1rem 0.25rem 1rem 0; border-bottom: 1px solid var(--line); }
.figures div:nth-child(odd) { padding-right: 1.25rem; }
.figures dt { font-variant: small-caps; text-transform: lowercase; letter-spacing: 0.12em; color: var(--gold); }
.figures dd { margin: 0.2rem 0 0; font-size: clamp(1.25rem, 2.4vw, 1.6rem); font-variant-numeric: lining-nums tabular-nums; overflow-wrap: anywhere; }

/* Notes */
.notes { padding: clamp(48px, 7vw, 96px) var(--gutter); }
.notes > h2 { font-size: clamp(2rem, 4.5vw, 3rem); margin-bottom: 2rem; }
.note-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 clamp(20px, 3vw, 40px); }
.note-grid article { border-top: 1px solid var(--gold); padding-top: 1rem; }
.note-grid h3 { font-size: 1.35rem; margin-bottom: 0.6rem; color: var(--gold-light); }
.note-grid p { color: var(--muted); font-size: 1.05rem; }
.disclaimer { margin-top: 2.5rem; padding-top: 1.25rem; border-top: 1px solid var(--line); color: var(--muted); font-style: italic; max-width: 70ch; }

.site-footer { padding: 1.5rem var(--gutter) 2.5rem; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 2rem; color: var(--muted); }

@media (max-width: 1020px) {
  .note-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem clamp(20px, 3vw, 40px); }
}
@media (max-width: 880px) {
  .split { grid-template-columns: 1fr; min-height: 0; }
  .right { border-left: 0; border-top: 1px solid var(--line); }
  .results { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .inputs, .holdings { grid-template-columns: 1fr; }
  .figures { grid-template-columns: 1fr; }
  .figures div:nth-child(odd) { padding-right: 0; }
  .note-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}