:root {
  color-scheme: light;
  --bg: #f5f2eb;
  --surface: #fffdf8;
  --inset: #f7f4ee;
  --line: #d8cfc1;
  --control-line: #aa9c8d;
  --text: #26211e;
  --muted: #625950;
  --accent: #842e35;
  --accent-hover: #672129;
  --accent-soft: #f2e4e3;
  --mono: ui-monospace, "SFMono-Regular", Consolas, monospace;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; min-width: 280px; min-height: 100vh; background: var(--bg); color: var(--text); font-family: var(--sans); }
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: .48; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
svg { width: 1em; height: 1em; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; vertical-align: middle; }
.symbols, .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
.wrap { width: min(1280px, calc(100% - 96px)); margin-inline: auto; }
.help-button, .secondary-button { background: var(--surface); color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 8px 12px; font-size: 13px; }
.help-button { display: inline-flex; align-items: center; justify-content: center; gap: 7px; min-height: 40px; white-space: nowrap; }
.help-button svg { width: 16px; height: 16px; color: var(--accent); }
.help-button:hover, .secondary-button:hover { background: var(--accent-soft); }
.intro { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 30px 0 22px; }
.intro-actions { display: flex; align-items: center; gap: 8px; }
.mode-nav { display: flex; gap: 2px; padding: 3px; background: var(--inset); border: 1px solid var(--line); border-radius: 7px; }
.mode-nav a { padding: 8px 10px; border-radius: 4px; color: var(--muted); font-size: 12px; font-weight: 650; text-decoration: none; white-space: nowrap; }
.mode-nav a:hover { background: var(--accent-soft); }
.mode-nav a[aria-current] { background: var(--accent); color: var(--surface); }
.eyebrow { margin: 0; color: var(--accent); font: 600 11px/1.4 var(--mono); letter-spacing: .15em; display: flex; align-items: center; gap: 9px; }
.intro h1 { margin: 0; font: 700 clamp(34px, 6vw, 64px)/1 var(--serif); letter-spacing: -.055em; }
.subtitle { margin: 9px 0 0; color: var(--muted); font-size: clamp(14px, 1.55vw, 17px); line-height: 1.5; }
.game-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(318px, 352px); gap: 18px; align-items: start; }
.map-card, .progress-card, .guess-card, .summary, dialog { background: var(--surface); border: 1px solid var(--line); border-radius: 9px; box-shadow: 0 2px 5px #26211e0a; }
.map-card { overflow: hidden; }
.map-head, .map-foot { padding: 0 15px; min-height: 42px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.map-head h2, .map-head-tag { margin: 0; display: flex; align-items: center; gap: 8px; font: 600 11px var(--mono); letter-spacing: .09em; }
.map-head h2 svg { color: var(--accent); width: 17px; height: 17px; }
.map-head-tag { color: var(--muted); font-size: 10px; white-space: nowrap; }
.map-head-tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.viewport { height: clamp(355px, 68vh - 75px, 640px); position: relative; overflow: hidden; touch-action: none; background: #e7dfd2; border-block: 1px solid var(--line); outline-offset: -3px; cursor: grab; }
.viewport.dragging { cursor: grabbing; }
[data-mode="borders"] .viewport { background: #dce8e7; }
.map-plane { position: absolute; top: 0; left: 0; transform-origin: 0 0; pointer-events: none; user-select: none; }
.map-plane img { position: absolute; display: block; user-select: none; }
.map-plane .base-image { inset: 0; width: 100%; height: 100%; }
.date-covers { position: absolute; inset: 0; z-index: 1; }
.date-covers span { position: absolute; background: #e0d5bc; }
.map-overlay { position: absolute; inset: 0; display: grid; align-content: center; justify-items: center; background: var(--inset); color: var(--text); padding: 20px; text-align: center; cursor: default; }
.map-overlay p { margin: 0 0 10px; max-width: 32ch; line-height: 1.5; }
.map-overlay [id="map-recovery"] { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.map-tools { position: absolute; z-index: 1; bottom: 13px; right: 13px; display: flex; border: 1px solid var(--control-line); border-radius: 6px; background: var(--surface); box-shadow: 0 2px 8px #26211e24; }
.map-tools button { background: transparent; border: none; border-right: 1px solid var(--line); color: var(--text); width: 38px; height: 37px; }
.map-tools button:last-child { border-right: none; }
.map-tools button:hover:not(:disabled) { color: var(--accent); background: var(--accent-soft); }
.map-tools button svg { width: 17px; height: 17px; }
.zoom-level { position: absolute; bottom: 14px; left: 13px; background: var(--surface); border: 1px solid var(--control-line); padding: 6px 8px; border-radius: 5px; font: 11px var(--mono); color: var(--text); }
.map-foot { font-size: 11px; color: var(--muted); }
.map-credit { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 5px; }
.map-credit svg { color: var(--accent); width: 15px; height: 15px; margin-right: 3px; }
.map-tip { white-space: nowrap; color: var(--muted); }
.map-tip span { padding-inline: 3px; }
.clue-bar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px 14px; padding: 10px 15px; border-top: 1px solid var(--line); background: var(--inset); }
.clue-bar p { flex: 1 1 180px; margin: 0; color: var(--muted); font-size: 12px; line-height: 1.5; }
.clue-bar strong { display: block; margin-bottom: 2px; color: var(--text); font-size: 12px; }
.clue-bar button { display: inline-flex; align-items: center; gap: 7px; font-weight: 600; }
.clue-bar svg { color: var(--accent); }
.date-cover-note { margin: 0; border-top: 1px solid var(--line); padding: 7px 15px; color: var(--muted); font-size: 11px; }
.tile-warning { border-top: 1px solid var(--line); padding: 9px 15px; color: var(--accent); font-size: 12px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px; align-items: center; }
.tile-warning button { border: 0; background: none; color: inherit; text-decoration: underline; padding: 4px; }
.game-sidebar { display: grid; gap: 13px; }
.progress-card { padding: 13px 18px; }
.stat-row { display: flex; justify-content: space-between; align-items: end; gap: 15px; }
.stat-label { display: block; color: var(--muted); font: 600 10px/1.4 var(--mono); letter-spacing: .1em; }
.stat-row p { margin: 2px 0 0; }
.stat-row strong { font: 400 34px/1 var(--serif); font-variant-numeric: lining-nums tabular-nums; }
.score-stat { text-align: right; }
.score-stat strong { color: var(--accent); font-size: 46px; display: inline-block; }
.stat-max { color: var(--muted); font: 11px var(--mono); }
.progress-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 5px; margin-top: 11px; }
.progress-track span { height: 5px; background: var(--line); border-radius: 2px; }
.progress-track .current { background: var(--accent); }
.progress-track .complete { background: #ba8889; }
.guess-card { padding: 17px 18px; }
.form-eyebrow { font-size: 10px; }
.form-eyebrow svg { width: 13px; height: 13px; }
.guess-card h2, .summary h2, dialog h2 { margin: 0; font: 400 32px/1.08 var(--serif); letter-spacing: -.035em; }
.year-choices { min-width: 0; margin: 14px 0 0; padding: 0; border: 0; }
.year-choices legend { padding: 0; color: var(--muted); font-size: 13px; }
.choice-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; margin-top: 11px; }
.year-choice { display: flex; align-items: center; gap: 9px; min-height: 54px; padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; background: var(--inset); cursor: pointer; }
.year-choice span { font: 700 clamp(22px,3vw,28px)/1 var(--serif); font-variant-numeric: tabular-nums; }
.year-choice input { margin: 0; width: 14px; height: 14px; flex: 0 0 auto; accent-color: var(--accent); }
.year-choice:hover, .year-choice:has(:checked) { background: var(--accent-soft); border-color: var(--accent); }
.year-choice:has(:checked) span { color: var(--accent); }
.timeline-panel { margin-top: 13px; padding: 12px 12px 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--inset); text-align: center; }
.year-label { display: block; font: 600 10px/1.4 var(--mono); letter-spacing: .11em; text-transform: uppercase; color: var(--muted); }
.year-picker { margin-top: 3px; display: grid; grid-template-columns: 42px minmax(0, 1fr) 42px; align-items: center; }
.year-step { width: 42px; height: 42px; border: 1px solid var(--control-line); border-radius: 6px; background: var(--surface); color: var(--accent); display: grid; place-items: center; }
.year-step svg { width: 18px; height: 18px; }
.year-step:hover:not(:disabled) { background: var(--accent-soft); }
#year { width: 100%; height: 53px; border: 1px solid transparent; border-radius: 5px; color: var(--text); background: transparent; text-align: center; font: 400 clamp(37px, 5vw, 50px)/1 var(--serif); font-variant-numeric: lining-nums tabular-nums; padding: 0 1px 3px; }
#year:hover { border-color: var(--control-line); }
#year[aria-invalid] { color: var(--accent); border-color: var(--accent); }
.field-error { margin: 7px 0 0; color: var(--accent); font-size: 12px; }
#year-slider { --year-progress: 50%; --track-fill: linear-gradient(90deg, var(--accent) var(--year-progress), #c6bbae var(--year-progress)); display: block; appearance: none; width: 100%; margin: 0; height: 39px; background: transparent; cursor: grab; }
#year-slider:active { cursor: grabbing; }
#year-slider::-webkit-slider-runnable-track { height: 8px; border-radius: 3px; background: var(--track-fill); }
#year-slider::-moz-range-track { height: 8px; border-radius: 3px; background: var(--track-fill); }
#year-slider::-webkit-slider-thumb { appearance: none; width: 23px; height: 27px; margin-top: -9.5px; border: 2px solid var(--surface); border-radius: 5px; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
#year-slider::-moz-range-thumb { width: 19px; height: 23px; border: 2px solid var(--surface); border-radius: 5px; background: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.ruler-ticks { height: 9px; margin: -3px 11px 4px; background: repeating-linear-gradient(90deg, var(--control-line) 0 1px, transparent 1px 10%) top / 100% 100% no-repeat, repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 2%) top / 100% 52% no-repeat; border-right: 1px solid var(--control-line); pointer-events: none; }
.range-labels { display: flex; justify-content: space-between; font: 11px var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.timeline-hint { margin: 9px 0 0; color: var(--muted); font-size: 11px; }
.primary-button { display: flex; align-items: center; justify-content: space-between; gap: 8px; width: 100%; margin-top: 13px; min-height: 45px; padding: 9px 12px; color: var(--surface); background: var(--accent); border: 1px solid transparent; border-radius: 6px; font-size: 14px; font-weight: 750; text-align: left; transition: background .15s, transform .15s; }
.primary-button:hover:not(:disabled) { background: var(--accent-hover); }
.primary-button:active:not(:disabled) { transform: translateY(1px); }
.primary-button svg { width: 19px; height: 19px; }
.aside-note { margin: 0 2px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.aside-note svg { color: var(--accent); margin-right: 4px; }
#reveal { animation: reveal-in .25s ease-out both; }
.reveal-heading { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; column-gap: 9px; }
#actual-year { color: var(--accent); font-size: 50px; margin-top: 6px; }
.region-label { color: var(--muted); font: 10px var(--mono); letter-spacing: .06em; text-transform: uppercase; }
.reveal-title { font: 19px/1.18 var(--serif); margin: 6px 0 12px; }
.round-result { display: flex; align-items: start; justify-content: space-between; gap: 10px; border-block: 1px solid var(--line); padding-block: 8px; }
.round-result strong { display: block; font: 28px/1 var(--serif); font-variant-numeric: lining-nums tabular-nums; margin-top: 3px; }
.round-points { text-align: right; }
#round-score { color: var(--accent); font-size: 44px; }
.guess-distance { display: block; margin-top: 4px; color: var(--muted); font-size: 11px; }
.field-note { margin-top: 12px; padding: 12px 13px; background: var(--inset); border: 1px solid var(--line); border-radius: 6px; }
.field-note h3 { margin: 0; color: var(--text); font: 700 17px/1.2 var(--serif); }
.field-note-description { margin: 7px 0 0; color: var(--muted); font-size: 13px; line-height: 1.48; }
.field-note-list { margin: 9px 0 0; padding-inline-start: 17px; list-style-type: disc; color: var(--text); font-size: 13px; line-height: 1.48; }
.field-note-list li + li { margin-top: 7px; }
.field-note-list li::marker { color: var(--accent); }
.field-note-list strong { color: var(--accent); margin-inline-end: 3px; }
.field-note-source { display: inline-block; margin-top: 8px; color: var(--accent); font-size: 12px; text-underline-offset: 3px; }
@keyframes reveal-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.record-link { display: inline-flex; align-items: center; gap: 5px; margin-top: 11px; color: var(--accent); font-size: 12px; text-underline-offset: 3px; }
.summary { max-width: 740px; padding: 25px clamp(18px, 4vw, 38px); }
.summary h2, dialog h2 { font-size: clamp(30px, 5vw, 43px); }
.summary-score { margin: 7px 0 20px; font-size: 14px; color: var(--muted); }
.summary-score strong { color: var(--accent); font: 58px var(--serif); }
.results { margin: 0; padding: 0; list-style: none; }
.results > li { border-top: 1px solid var(--line); padding: 12px 0; display: grid; grid-template-columns: 25px 1fr auto; gap: 9px; align-items: baseline; }
.result-number, .result-detail { color: var(--muted); font: 11px var(--mono); }
.result-name { color: var(--text); font-family: var(--serif); text-underline-offset: 3px; }
.result-detail { display: block; margin-top: 4px; line-height: 1.5; }
.result-points { color: var(--accent); font: 16px var(--mono); white-space: nowrap; }
.result-note { margin-top: 5px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.result-note summary { color: var(--accent); cursor: pointer; }
.summary .primary-button { max-width: 235px; }
.site-footer { display: flex; flex-wrap: wrap; gap: 10px 20px; justify-content: space-between; margin-top: 24px; padding: 14px 0 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.site-footer a { text-underline-offset: 3px; }
dialog { color: var(--text); width: min(480px, calc(100% - 30px)); padding: 25px; }
dialog::backdrop { background: #26211e80; }
.dialog-close { position: absolute; right: 13px; top: 13px; border: 0; background: transparent; color: var(--text); padding: 6px; }
.dialog-close svg { width: 20px; height: 20px; }
dialog ol { padding-left: 21px; color: var(--muted); line-height: 1.6; font-size: 14px; }
dialog li + li { margin-top: 8px; }
.score-dialog {
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: clamp(14px, 4vw, 38px);
  border: 0;
  border-radius: 0;
  background: var(--bg);
}
.score-dialog[open] { display: grid; place-items: center; animation: score-enter .26s ease-out both; }
.score-stage {
  width: min(100%, 800px);
  border: 1px solid var(--line);
  padding: clamp(22px, 6vh, 58px) clamp(14px, 4vw, 48px);
  background: var(--surface);
  text-align: center;
}
.score-seal {
  display: grid;
  place-items: center;
  width: clamp(48px, 9vh, 74px);
  aspect-ratio: 1;
  margin: 0 auto 15px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  animation: stamp-in .54s .12s cubic-bezier(.2,.8,.3,1.14) both;
}
.score-seal svg { width: 52%; height: 52%; }
.score-kicker { margin: 0; color: var(--muted); font: 600 11px/1.4 var(--mono); letter-spacing: .13em; }
#score-title { margin: 8px 0 0; }
.celebration-points { margin: 4px 0 3px; color: var(--accent); font: 700 clamp(66px, 16vw, 156px)/1 var(--serif); font-variant-numeric: lining-nums tabular-nums; letter-spacing: -.06em; }
.score-meter { width: min(100%, 260px); height: 5px; margin: 16px auto; overflow: hidden; background: var(--line); border-radius: 3px; }
.score-meter span { display: block; width: 100%; height: 100%; background: var(--accent); transform-origin: left; transform: scaleX(0); }
.celebration-total { margin: 0; color: var(--muted); font-size: 13px; }
.celebration-total strong { margin-inline-start: 5px; color: var(--text); font-size: 17px; font-variant-numeric: tabular-nums; }
.score-stage form { max-width: 255px; margin: 23px auto 0; }
@keyframes score-enter { from { opacity: 0; } to { opacity: 1; } }
@keyframes stamp-in { from { opacity: 0; transform: scale(1.35) rotate(-13deg); } to { opacity: 1; transform: scale(1) rotate(0); } }
.noscript { color: var(--accent); }
@media (max-width: 1050px) { .wrap { width: calc(100% - 56px); } .division { display: none; } }
@media (max-width: 760px) {
  .wrap { width: calc(100% - 32px); }
  .intro { padding: 22px 0 17px; flex-wrap: wrap; }
  .game-layout { grid-template-columns: 1fr; gap: 12px; }
  .game-sidebar { gap: 10px; }
  .viewport { height: clamp(240px, 52vw, 390px); }
  .map-head, .map-foot { padding-inline: 10px; min-height: 37px; }
  .progress-card { padding-block: 11px; }
  .progress-track { margin-top: 8px; }
}
@media (max-width: 430px) {
  .help-button { width: 40px; padding: 0; }
  .help-button span { display: none; }
}
@media (max-width: 365px) { .map-tip { display: none; } }
@media (prefers-reduced-motion: reduce) {
  #reveal, .score-dialog[open], .score-seal { animation: none; }
  .primary-button { transition: none; }
}