:root {
  color-scheme: dark;
  --ink: #f5edda;
  --ink-soft: #c9c0ad;
  --paper: #0b0b0a;
  --paper-2: #15130f;
  --line: rgba(245, 237, 218, .17);
  --line-strong: rgba(245, 237, 218, .34);
  --amber: #f2b45f;
  --amber-soft: rgba(242, 180, 95, .18);
  --red: #b34f3f;
  --max: 1220px;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}
* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 300px;
  color: var(--ink);
  background:
    radial-gradient(circle at 70% -10%, rgba(179,79,63,.13), transparent 34rem),
    linear-gradient(180deg, #090908 0%, #0d0c0a 42%, #090908 100%);
  font-family: var(--sans);
  line-height: 1.5;
}
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 99; background: var(--ink); color: #111; padding: .7rem 1rem; }
.skip-link:focus { top: 1rem; }
.topbar {
  width: min(calc(100% - 2rem), var(--max));
  margin: 0 auto;
  padding: 1.2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.brand { text-decoration: none; font-family: var(--mono); font-size: .78rem; letter-spacing: .06em; color: var(--ink-soft); }
.lang-switch { text-decoration: none; border: 1px solid var(--line-strong); border-radius: 999px; padding: .38rem .68rem; font: 700 .72rem/1 var(--mono); letter-spacing: .08em; }
.lang-switch:hover, .lang-switch:focus-visible { background: var(--ink); color: #111; outline: 0; }
main { overflow: hidden; }
.hero {
  width: min(calc(100% - 2rem), 1050px);
  margin: 0 auto;
  padding: clamp(4.5rem, 10vw, 9rem) 0 clamp(3.5rem, 7vw, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, .48fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: end;
}
.kicker { margin: 0 0 1rem; font: 700 .72rem/1.2 var(--mono); letter-spacing: .18em; color: var(--amber); }
h1 { margin: 0; max-width: 12ch; font: 400 clamp(3.5rem, 9vw, 8.2rem)/.88 var(--serif); letter-spacing: -.055em; text-wrap: balance; }
.dek { margin: 2rem 0 0; max-width: 46rem; font: 400 clamp(1.08rem, 2vw, 1.38rem)/1.55 var(--serif); color: var(--ink-soft); }
.hero-stat { border-top: 1px solid var(--line-strong); padding-top: 1.2rem; color: var(--ink-soft); }
.hero-stat strong { display: block; margin-bottom: .5rem; font: 400 clamp(3rem, 7vw, 5.8rem)/.9 var(--serif); color: var(--ink); letter-spacing: -.05em; }
.hero-stat p { margin: 0; font-size: .93rem; }
.observatory { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto clamp(5rem, 10vw, 9rem); }
.instrument {
  position: relative;
  border: 1px solid var(--line-strong);
  background: rgba(13, 12, 10, .72);
  box-shadow: 0 30px 90px rgba(0,0,0,.35);
}
.instrument::before { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(105deg, rgba(255,255,255,.025), transparent 22%); }
.control-deck { display: grid; grid-template-columns: minmax(280px, .78fr) minmax(0, 1.65fr); border-bottom: 1px solid var(--line); }
.controls { padding: clamp(1.2rem, 3vw, 2.4rem); border-right: 1px solid var(--line); }
.control-label { display: block; margin: 0 0 .6rem; font: 700 .72rem/1.2 var(--mono); letter-spacing: .11em; text-transform: uppercase; color: var(--ink-soft); }
.year-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .7rem; align-items: stretch; }
.year-input {
  width: 100%; min-width: 0; color: var(--ink); background: #080807; border: 1px solid var(--line-strong);
  padding: .62rem .75rem; font: 400 clamp(2rem, 5vw, 3.4rem)/1 var(--serif); letter-spacing: -.035em;
}
.year-input:focus, .search-input:focus { outline: 2px solid var(--amber); outline-offset: 2px; }
.surprise { border: 1px solid var(--line-strong); color: var(--ink); background: transparent; padding: .55rem .75rem; cursor: pointer; }
.surprise:hover, .surprise:focus-visible { background: var(--ink); color: #111; outline: 0; }
.quick-years { display: flex; flex-wrap: wrap; gap: .45rem; margin: .8rem 0 1.5rem; }
.pill { border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink-soft); padding: .38rem .68rem; font: 700 .72rem/1 var(--mono); cursor: pointer; }
.pill:hover, .pill:focus-visible, .pill[aria-pressed="true"] { border-color: var(--amber); color: var(--ink); outline: 0; background: var(--amber-soft); }
.year-slider { width: 100%; accent-color: var(--amber); }
.timeline-wrap { position: relative; margin-top: .5rem; }
#timelineCanvas { width: 100%; height: 78px; display: block; cursor: crosshair; }
.timeline-labels { display: flex; justify-content: space-between; font: 600 .64rem/1 var(--mono); color: var(--ink-soft); margin-top: .3rem; }
.window-set { margin: 1.6rem 0 0; padding: 0; border: 0; }
.window-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: .35rem; }
.window-options button { border: 1px solid var(--line); background: transparent; color: var(--ink-soft); padding: .62rem .25rem; cursor: pointer; font: 700 .75rem/1 var(--mono); }
.window-options button:hover, .window-options button:focus-visible, .window-options button[aria-pressed="true"] { background: var(--amber); color: #16110a; border-color: var(--amber); outline: 0; }
.result-box { margin-top: 1.8rem; padding-top: 1.3rem; border-top: 1px solid var(--line); }
.result-big { margin: 0; font: 400 clamp(1.25rem, 2vw, 1.8rem)/1.25 var(--serif); }
.result-note { margin: .7rem 0 0; font-size: .78rem; color: var(--ink-soft); }
.sky-panel { min-width: 0; padding: clamp(1rem, 2.4vw, 2rem); display: flex; flex-direction: column; }
.panel-head { display: flex; justify-content: space-between; align-items: start; gap: 1rem; margin-bottom: .75rem; }
.panel-head h2 { margin: 0; font: 400 clamp(1.4rem, 3vw, 2.2rem)/1.1 var(--serif); }
.panel-head p { margin: .3rem 0 0; color: var(--ink-soft); font-size: .82rem; max-width: 48rem; }
.map-key { flex: none; font: 700 .67rem/1.2 var(--mono); color: var(--amber); text-transform: uppercase; letter-spacing: .08em; }
.sky-frame { position: relative; min-height: 280px; flex: 1; display: grid; place-items: center; }
#skyCanvas { width: 100%; aspect-ratio: 2 / 1; min-height: 280px; display: block; cursor: crosshair; touch-action: manipulation; }
.lower-deck { display: grid; grid-template-columns: minmax(260px,.72fr) minmax(0,1.28fr); }
.search-panel, .selection-panel { padding: clamp(1.2rem, 3vw, 2.2rem); }
.search-panel { border-right: 1px solid var(--line); }
.search-panel h2, .selection-panel h2, .method h2 { margin: 0 0 1rem; font: 400 clamp(1.45rem, 3vw, 2.1rem)/1.1 var(--serif); }
.search-wrap { position: relative; }
.search-input { width: 100%; border: 1px solid var(--line-strong); background: #080807; color: var(--ink); padding: .85rem .9rem; }
.suggestions { list-style: none; margin: .35rem 0 0; padding: 0; border: 1px solid var(--line); max-height: 15rem; overflow: auto; display: none; }
.suggestions.open { display: block; }
.suggestions button { width: 100%; display: flex; justify-content: space-between; gap: .8rem; border: 0; border-bottom: 1px solid var(--line); background: #0c0b09; color: var(--ink); padding: .72rem .8rem; text-align: left; cursor: pointer; }
.suggestions button:hover, .suggestions button:focus-visible { background: var(--amber-soft); outline: 0; }
.suggestions small { color: var(--ink-soft); }
.star-card { margin-top: 1.2rem; min-height: 10rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.star-card.empty { color: var(--ink-soft); }
.star-name { margin: 0; font: 400 2rem/1.05 var(--serif); }
.star-meta { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .7rem 1rem; margin: 1rem 0; }
.star-meta dt { font: 700 .64rem/1.2 var(--mono); color: var(--ink-soft); text-transform: uppercase; letter-spacing: .08em; }
.star-meta dd { margin: .2rem 0 0; }
.jump-button, .action-button { border: 1px solid var(--amber); color: #15100a; background: var(--amber); padding: .68rem .85rem; cursor: pointer; font-weight: 700; }
.jump-button:hover, .jump-button:focus-visible, .action-button:hover, .action-button:focus-visible { filter: brightness(1.08); outline: 2px solid var(--ink); outline-offset: 2px; }
.match-list { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .5rem; }
.match-list button { min-width: 0; border: 1px solid var(--line); background: transparent; color: var(--ink); padding: .72rem; text-align: left; cursor: pointer; }
.match-list button:hover, .match-list button:focus-visible, .match-list button.selected { border-color: var(--amber); background: var(--amber-soft); outline: 0; }
.match-list strong, .match-list small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.match-list small { margin-top: .2rem; color: var(--ink-soft); }
.actions { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.2rem; }
.action-button.secondary { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.action-button.secondary:hover, .action-button.secondary:focus-visible { background: var(--ink); color: #111; }
.method { width: min(calc(100% - 2rem), 920px); margin: 0 auto clamp(5rem,10vw,9rem); }
.method-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem 4rem; }
.method p { color: var(--ink-soft); }
.method a { text-decoration-color: var(--amber); text-underline-offset: .2em; }
footer { width: min(calc(100% - 2rem), var(--max)); margin: 0 auto; padding: 1.5rem 0 2.5rem; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 1rem; font: 600 .68rem/1.4 var(--mono); color: var(--ink-soft); }
.back-to-top { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; flex: 0 0 44px; border: 1px solid var(--line-strong); color: var(--ink); text-decoration: none; font: 700 1.1rem/1 var(--mono); }
.back-to-top:hover, .back-to-top:focus-visible { background: var(--ink); color: #111; outline: 2px solid var(--amber); outline-offset: 2px; }
.js-back-to-top .back-to-top { position: fixed; right: max(1rem, env(safe-area-inset-right)); bottom: calc(8rem + env(safe-area-inset-bottom)); z-index: 90; opacity: 0; visibility: hidden; transform: translateY(1rem); pointer-events: none; transition: opacity .2s ease, transform .2s ease, visibility .2s ease; }
.js-back-to-top .back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); pointer-events: auto; }
.toast { position: fixed; left: 50%; bottom: 1.2rem; z-index: 80; transform: translate(-50%, 150%); opacity: 0; background: var(--ink); color: #111; padding: .65rem .9rem; box-shadow: 0 8px 30px rgba(0,0,0,.35); transition: transform .2s ease, opacity .2s ease; }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
@media (max-width: 850px) {
  .hero { grid-template-columns: 1fr; }
  .hero-stat { max-width: 30rem; }
  .control-deck, .lower-deck { grid-template-columns: 1fr; }
  .controls, .search-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .sky-panel { min-height: 460px; }
}
@media (max-width: 540px) {
  .topbar, .hero, .observatory, .method, footer { width: min(calc(100% - 1.25rem), var(--max)); }
  .hero { padding-top: 3.5rem; }
  h1 { font-size: clamp(3.35rem, 18vw, 5rem); }
  .year-row { grid-template-columns: 1fr; }
  .surprise { min-height: 44px; }
  .window-options { grid-template-columns: repeat(2, 1fr); }
  .match-list { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; gap: .5rem; }
  footer { flex-direction: column; }
  #skyCanvas { min-height: 220px; }
  .sky-frame { min-height: 220px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js-back-to-top .back-to-top { transition-duration: 0s !important; }
}
@media print {
  body { background: #fff; color: #000; }
  .topbar, .actions, .search-panel, .controls { display: none; }
}