:root {
  color-scheme: dark;
  --bg: #101913;
  --panel: #18251c;
  --text: #f9f0de;
  --muted: #b9c3b6;
  --gold: #f4cb85;
  --line: #415043;
  font-family: system-ui, sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--text); background: var(--bg); }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
.shell { width: min(68rem, calc(100% - 2rem)); margin-inline: auto; }
.gallery-head, .controls { display: flex; flex-wrap: wrap; gap: .7rem 1rem; justify-content: space-between; align-items: center; }
main { padding-bottom: 3rem; }
.hero { padding-block: clamp(3rem, 8vw, 6rem) clamp(2rem, 5vw, 3.5rem); }
.eyebrow { font-size: .75rem; font-weight: 650; letter-spacing: .15em; }
.eyebrow, em { color: var(--gold); }
h1, h2 { font-family: Georgia, serif; font-weight: normal; }
h1 { margin: .18em 0; font-size: clamp(2.75rem, 8.8vw, 6.5rem); line-height: .98; letter-spacing: -.045em; }
h2 { margin: 0; font-size: clamp(1.4rem, 3vw, 2rem); }
.intro, .steps p {color: var(--muted); line-height: 1.6; }
.cta { display: inline-flex; gap: .75rem; padding: .75rem 1rem; border-radius: .45rem; background: var(--gold); color: var(--bg); text-decoration: none; font-weight: 700; }
.cta:hover { background: #ffe0a6; }
.gallery-head { margin-bottom: .9rem; }
.hint, figcaption, output { color: var(--muted); }
.hint { font-size: .85rem; }
.track { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; border: 1px solid var(--line); border-radius: .85rem; background: var(--panel); }
.track figure { flex: 0 0 100%; min-width: 0; margin: 0; scroll-snap-align: start; }
.track img { display: block; width: 100%; aspect-ratio: 2.2; object-fit: contain; }
figcaption { padding: .85rem 1rem; }
.controls { margin-top: .75rem; font-variant-numeric: tabular-nums; }
.controls[hidden] { display: none; }
.buttons { display: flex; gap: .5rem; }
button { min-width: 2.75rem; min-height: 2.75rem; padding-inline: .75rem; background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: .45rem; font: inherit; cursor: pointer; }
button:hover { border-color: var(--gold); }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: step; max-width: 47rem; }
.steps li { counter-increment: step; padding: 1.25rem 1rem 1.25rem 3.5rem; position: relative; border-top: 1px solid var(--line); }
.steps li::before { content: counter(step, decimal-leading-zero); position: absolute; left: .5rem; top: 1.4rem; color: var(--gold); }
.steps p { margin: .45rem 0 0; }
.back { margin-top: 1rem; }
@media (max-width: 36rem) { .track img { aspect-ratio: 4 / 3; } }