/* 挖冷门 — original earth-drill look. System fonts only. */
:root {
  --ink: #f4ead5;
  --ink-dim: #c2b293;
  --ink-faint: #8a7b64;
  --panel: rgba(17, 11, 8, 0.88);
  --line: #5a4330;
  --gold: #f4c04e;
  --gold-deep: #9c6a17;
  --teal: #6fe3c6;
  --heat: #ff7a3d;
  --zero: #8d8a84;
  --font: system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --notch: polygon(4px 0, calc(100% - 4px) 0, 100% 4px, 100% calc(100% - 4px), calc(100% - 4px) 100%, 4px 100%, 0 calc(100% - 4px), 0 4px);
  --kb: 0px;
  --vvt: 0px;
  --controls-h: 100px;
  --safe-t: max(10px, env(safe-area-inset-top));
  --safe-b: max(10px, env(safe-area-inset-bottom));
  --tc: var(--gold);
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; }
body {
  margin: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: #140d09;
  color: var(--ink);
  font-family: var(--font);
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}
button { font: inherit; color: inherit; cursor: pointer; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ── World layers ─────────────────────────────────────────── */
#world {
  position: fixed; inset: 0; width: 100vw; height: 100%;
  image-rendering: pixelated; image-rendering: crisp-edges; z-index: 0;
}
.scanlines {
  position: fixed; inset: 0; pointer-events: none; z-index: 60;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.13) 0 1px, transparent 1px 3px),
    radial-gradient(ellipse at center, transparent 58%, rgba(0, 0, 0, 0.38) 100%);
}
.ruler, .strata-labels {
  position: fixed; top: 0; bottom: 0; pointer-events: none; overflow: hidden; z-index: 4; display: none;
}
body.is-play .ruler, body.is-reveal .ruler, body.is-play .strata-labels, body.is-reveal .strata-labels { display: block; }
.ruler { right: 0; width: 62px; }
.ruler .track, .strata-labels .track { position: absolute; left: 0; right: 0; top: 0; will-change: transform; }
.ruler .track {
  height: 7800px;
  background:
    repeating-linear-gradient(to bottom, rgba(244, 234, 213, 0.85) 0 2px, transparent 2px 100px) right top / 14px 100% no-repeat,
    repeating-linear-gradient(to bottom, rgba(244, 234, 213, 0.45) 0 1px, transparent 1px 20px) right top / 7px 100% no-repeat;
}
.ruler .lbl {
  position: absolute; right: 16px; transform: translateY(-50%);
  font: 600 9px/1 var(--mono); color: rgba(244, 234, 213, 0.75); white-space: nowrap;
  text-shadow: 0 1px 0 #000;
}
.ruler-you {
  position: absolute; right: 0; top: 0; display: flex; align-items: center; gap: 2px;
  transform: translateY(-50%); will-change: transform;
}
.ruler-you span { font: 800 9px/1 var(--mono); color: var(--gold); text-shadow: 0 1px 0 #000; letter-spacing: 0.06em; }
.ruler-you i { width: 14px; height: 2px; background: var(--gold); box-shadow: 0 0 0 1px #000; }
.strata-labels { left: 0; width: 150px; z-index: 3; }
.strata-labels .lbl {
  position: absolute; left: 8px; transform: translateY(-50%);
  font: 600 10px/1 var(--mono); letter-spacing: 0.12em; color: rgba(244, 234, 213, 0.42); white-space: nowrap;
}
.strata-labels .lbl::before { content: "— "; }

/* ── Shared bits ──────────────────────────────────────────── */
.panel {
  background: var(--panel); border: 2px solid var(--line); clip-path: var(--notch);
}
.screen { position: fixed; inset: 0; z-index: 10; display: flex; flex-direction: column; pointer-events: none; }
.screen > * { pointer-events: auto; }

/* ── HUD ──────────────────────────────────────────────────── */
.hud {
  position: fixed; z-index: 20; left: 8px; right: 8px; top: calc(var(--vvt) + var(--safe-t));
  display: grid; grid-template-columns: auto 1fr auto; align-items: start; gap: 6px; pointer-events: none;
}
.hud-box {
  display: flex; flex-direction: column; gap: 3px; min-width: 76px; padding: 5px 9px 6px;
  background: var(--panel); border: 2px solid var(--line); clip-path: var(--notch);
}
.hud-score { text-align: right; }
.hud-label { font: 700 9px/1 var(--mono); letter-spacing: 0.16em; color: var(--ink-dim); }
.hud-val { font: 800 20px/1 var(--mono); color: var(--teal); font-variant-numeric: tabular-nums; }
.hud-score .hud-val { color: var(--gold); }
.hud-mid { display: flex; flex-direction: column; align-items: center; gap: 5px; padding-top: 4px; }
.hud-mid .hud-label { font-size: 8px; text-shadow: 0 1px 0 #000; }
.pips { display: flex; gap: 4px; }
.pip { width: 12px; height: 12px; background: #2a1f18; box-shadow: 0 0 0 2px #000, inset 0 0 0 1px rgba(255, 255, 255, 0.07); }
.pip.done { background: var(--pc, var(--zero)); }
.pip.cur { background: var(--gold); animation: pip 0.9s steps(2) infinite; }
@keyframes pip { 50% { background: #7a5a1c; } }

/* ── Corner controls ──────────────────────────────────────── */
.corner {
  position: fixed; z-index: 30; right: 8px; top: calc(var(--vvt) + var(--safe-t));
  display: flex; flex-direction: column; gap: 6px;
}
body.is-home .corner, body.is-results .corner { flex-direction: row; align-items: flex-start; }
body.is-play .corner, body.is-reveal .corner { top: calc(var(--vvt) + var(--safe-t) + 52px); right: 44px; flex-direction: row; }
/* The shared game menu (platform/nav.css) sits last in the row; never during a running round. */
.corner-nav { --pnav-line: var(--line); --pnav-gold: var(--gold); --pnav-size: 36px; }
body.is-play .corner-nav, body.is-reveal .corner-nav { display: none; }
.sq {
  width: 36px; height: 34px; padding: 0; display: grid; place-items: center;
  background: var(--panel); border: 2px solid var(--line); clip-path: var(--notch);
  font: 800 11px/1 var(--mono); letter-spacing: 0.04em; color: var(--ink);
}
.sq svg { width: 18px; height: 18px; image-rendering: pixelated; }
.sq:active { transform: translateY(1px); }
body.is-play .sq, body.is-reveal .sq { width: 32px; height: 28px; font-size: 10px; }

/* ── Home ─────────────────────────────────────────────────── */
.screen-home {
  justify-content: space-between; align-items: center;
  padding: calc(var(--safe-t) + 54px) 16px calc(var(--safe-b) + 8px);
}
.home-top { text-align: center; margin-top: 3vh; }
.title { margin: 0; line-height: 0; }
#titleCanvas { image-rendering: pixelated; display: block; margin: 0 auto; filter: drop-shadow(0 4px 0 rgba(0, 0, 0, 0.35)); }
.brand-sub { margin: 14px 0 6px; font: 800 12px/1 var(--mono); letter-spacing: 0.5em; color: #fff3d6; text-shadow: 0 2px 0 rgba(0, 0, 0, 0.5); }
.tagline { margin: 0; font: 600 14px/1.5 var(--font); color: #fff8ea; text-shadow: 0 1px 0 rgba(0, 0, 0, 0.55), 0 0 8px rgba(0, 0, 0, 0.35); }
.home-bottom { width: 100%; max-width: 460px; }
.howto summary {
  list-style: none; cursor: pointer; display: inline-block; padding: 6px 2px;
  font: 700 12px/1 var(--mono); letter-spacing: 0.2em; color: var(--ink-dim);
}
.howto summary::-webkit-details-marker { display: none; }
.howto summary::before { content: "▸ "; display: inline-block; transition: transform 0.15s; }
.howto[open] summary::before { transform: rotate(90deg); }
.howto ol {
  margin: 4px 0 10px; padding: 10px 12px 10px 30px; font: 13px/1.6 var(--font); color: var(--ink);
  background: var(--panel); border: 2px solid var(--line); clip-path: var(--notch);
}
.big-btn {
  display: flex; width: 100%; align-items: center; justify-content: center; gap: 0.9em; margin-top: 8px;
  padding: 18px 12px; background: rgba(14, 9, 6, 0.92); color: var(--gold);
  font: 900 20px/1 var(--font); letter-spacing: 0.32em;
  border: 3px solid var(--gold); clip-path: var(--notch);
  box-shadow: inset 0 0 0 3px #000, inset 0 -6px 0 rgba(244, 192, 78, 0.12);
}
.big-btn:active { transform: translateY(2px); }
.arr { font-size: 0.7em; letter-spacing: 0; animation: bob 1.1s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(3px); } }
.home-meta {
  display: flex; flex-direction: column; align-items: center; gap: 3px; margin-top: 12px;
  font: 600 11px/1.4 var(--mono); color: var(--ink-dim); letter-spacing: 0.04em; text-shadow: 0 1px 0 #000;
}
.home-meta .test { color: var(--heat); }
.note { margin: 10px 0 0; font: 11px/1.5 var(--font); color: var(--ink-dim); text-align: center; text-shadow: 0 1px 0 #000; }

/* ── Play ─────────────────────────────────────────────────── */
.screen-play { top: calc(var(--vvt) + var(--safe-t) + 92px); bottom: calc(var(--kb) + var(--safe-b) + var(--controls-h) + 8px); padding: 0 46px 0 10px; }
.prompt-card {
  position: relative; padding: 14px 16px 14px; background: rgba(15, 10, 7, 0.86);
  min-height: 0; max-height: 100%; overflow-y: auto; overscroll-behavior: contain;
  border: 2px solid var(--line); clip-path: var(--notch);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}
.prompt-card.enter { animation: cardIn 0.35s steps(5); }
@keyframes cardIn { from { opacity: 0; transform: translateY(-10px); } }
.kicker { font: 800 10px/1 var(--mono); letter-spacing: 0.22em; color: var(--heat); }
.prompt { margin: 10px 0 8px; font: 800 clamp(20px, 6.3vw, 30px)/1.32 var(--font); color: #fff8e8; text-wrap: balance; }
.rule { margin: 0 0 10px; font: 13px/1.5 var(--font); color: var(--ink-dim); }
.rule-tools { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.rule-tools button { padding: 6px 0; border: 0; background: transparent; color: var(--gold); font: 12px/1.2 var(--font); text-decoration: underline; text-underline-offset: 3px; }
.question-details { max-height: 150px; overflow-y: auto; overscroll-behavior: contain; margin-top: 6px; border-top: 1px solid var(--line); font: 12px/1.5 var(--font); color: var(--ink-dim); }
.question-details p { margin: 8px 0; }
.rules-clock { color: var(--gold); }
.ratings-notice { margin: 5px 0 0; font: 11px/1.4 var(--font); color: var(--teal); }
.foot { font: 600 10px/1 var(--mono); letter-spacing: 0.16em; color: var(--ink-faint); }
.preview-bar { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255, 255, 255, 0.06); }
.preview-bar i { display: block; height: 100%; background: var(--gold); transform-origin: left; transform: scaleX(var(--pv, 0)); }

.controls {
  position: fixed; z-index: 25; left: 8px; right: 8px; bottom: calc(var(--kb) + var(--safe-b));
  max-width: 560px; margin: 0 auto;
}
.controls::before {
  content: ""; position: fixed; left: 0; right: 0; bottom: 0; z-index: -1; pointer-events: none;
  height: calc(var(--kb) + var(--safe-b) + 150px);
  background: linear-gradient(to bottom, transparent, rgba(10, 6, 4, 0.82) 45%, rgba(10, 6, 4, 0.94));
}
.feedback {
  margin: 0 0 8px 56px; padding: 9px 11px; font: 14px/1.45 var(--font); color: var(--ink);
  background: rgba(15, 10, 7, 0.92); border: 2px solid var(--line); clip-path: var(--notch);
}
.feedback:empty { display: none; }
.feedback.is-suggest { border-color: var(--gold); }
.feedback.is-stale > .sug, .feedback.is-stale > .sub { opacity: 0.55; }
.feedback .sug { font-weight: 700; }
.feedback .sug b { color: var(--gold); }
.feedback .sub { margin-top: 3px; font: 600 11px/1.3 var(--mono); color: var(--ink-dim); letter-spacing: 0.04em; }
.feedback .sug-actions { display: flex; gap: 8px; margin-top: 8px; }
.feedback .sug-actions button {
  flex: 1 1 0; min-width: 0; min-height: 42px; padding: 0 10px; font: 800 15px/1.1 var(--font); letter-spacing: 0.06em;
  color: var(--ink); background: rgba(40, 28, 20, 0.95); border: 2px solid var(--line); clip-path: var(--notch);
  touch-action: manipulation;
}
.feedback .sug-actions .sug-yes {
  color: #1d1108; background: var(--gold); border-color: #000;
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.22), inset 0 2px 0 rgba(255, 255, 255, 0.35);
}
.feedback .sug-actions button:active { transform: translateY(1px); }
.feedback.shake { animation: shake 0.28s steps(4); }
@keyframes shake { 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }
.row { display: flex; align-items: center; gap: 8px; }
.clock {
  --p: 1; position: relative; flex: none; width: 48px; height: 48px; border-radius: 50%;
  display: grid; place-items: center;
  background: conic-gradient(var(--cc, var(--teal)) calc(var(--p) * 360deg), rgba(255, 255, 255, 0.1) 0);
}
.clock::before { content: ""; position: absolute; inset: 4px; border-radius: 50%; background: #120c09; box-shadow: inset 0 0 0 1px #3a2a1e; }
.clock span { position: relative; font: 800 18px/1 var(--mono); color: var(--cc, var(--teal)); font-variant-numeric: tabular-nums; }
.clock.is-preview { --cc: var(--gold); }
.clock.is-low { --cc: var(--heat); }
#answer {
  flex: 1 1 auto; min-width: 0; height: 48px; padding: 0 12px; border-radius: 0;
  font: 500 17px/1 var(--font); color: #fff; caret-color: var(--gold);
  background: rgba(10, 7, 5, 0.94); border: 2px solid #6a5038; outline: none;
  -webkit-appearance: none; appearance: none;
}
#answer:focus { border-color: var(--gold); }
#answer::placeholder { color: #8a7b64; }
.dig {
  flex: none; height: 48px; min-width: 66px; padding: 0 14px;
  font: 900 16px/1 var(--font); letter-spacing: 0.16em; color: #1d1108;
  background: var(--gold); border: 2px solid #000; clip-path: var(--notch);
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.22), inset 0 2px 0 rgba(255, 255, 255, 0.35);
}
.dig:active { transform: translateY(1px); }
.dig[aria-disabled="true"] { filter: grayscale(0.7) brightness(0.6); }
.timer { margin: 7px 0 0 56px; height: 4px; background: rgba(255, 255, 255, 0.1); }
.timer i { display: block; height: 100%; background: var(--teal); transform-origin: left; transform: scaleX(var(--tl, 1)); }
.timer.is-low i { background: var(--heat); }
.timer.is-preview i { background: #6f5a30; }
.under { display: flex; justify-content: space-between; align-items: center; margin: 2px 0 0 56px; min-height: 22px; }
.hint { font: 11px/1.3 var(--font); color: var(--ink-dim); text-shadow: 0 1px 0 #000; }
.skip {
  margin-left: auto; padding: 4px 2px 2px 10px; background: none; border: 0;
  font: 600 12px/1 var(--font); color: var(--ink-faint); text-decoration: underline; text-underline-offset: 3px;
}

/* ── Reveal ───────────────────────────────────────────────── */
.screen-reveal {
  align-items: center; justify-content: center; text-align: center;
  padding: calc(var(--safe-t) + 100px) 46px calc(var(--safe-b) + 110px) 14px;
}
.reveal {
  position: relative; padding: 20px 22px;
  background: radial-gradient(closest-side, rgba(10, 6, 4, 0.78), rgba(10, 6, 4, 0.45) 70%, transparent);
}
.reveal.enter { animation: revealIn 0.42s steps(6); }
@keyframes revealIn { from { opacity: 0; transform: scale(0.88); } }
.reveal-icon { width: 72px; height: 72px; image-rendering: pixelated; filter: drop-shadow(0 0 14px var(--tc)); }
.reveal-tier {
  margin: 12px 0 14px; font: 900 clamp(34px, 11vw, 50px)/1 var(--font); letter-spacing: 0.22em; color: var(--tc);
  text-shadow: 0 3px 0 #000, 0 0 22px rgba(0, 0, 0, 0.6); padding-left: 0.22em;
}
.reveal-answer { font: 800 20px/1.35 var(--font); color: #fff8e8; text-shadow: 0 2px 0 #000; }
.reveal-answer small { display: block; margin-top: 2px; font: 500 13px/1.3 var(--font); color: var(--ink-dim); }
.reveal-pts { margin: 12px 0 8px; font: 800 15px/1.3 var(--mono); color: var(--tc); letter-spacing: 0.06em; text-shadow: 0 1px 0 #000; }
.reveal-flavor { font: 13px/1.5 var(--font); color: var(--ink-dim); text-shadow: 0 1px 0 #000; }
.reveal.is-zero { --tc: var(--zero); }
html:lang(en) .reveal-tier { letter-spacing: 0.06em; padding-left: 0.06em; font-size: clamp(30px, 9.4vw, 44px); }
html:lang(en) .big-btn { letter-spacing: 0.14em; font-size: 18px; }
html:lang(en) .next-btn { letter-spacing: 0.16em; }
.reveal.is-zero .reveal-tier { font-size: clamp(26px, 8.4vw, 38px); letter-spacing: 0.08em; padding-left: 0.08em; color: #cfc8bb; }
.next-btn {
  position: fixed; left: 50%; bottom: calc(var(--safe-b) + 14px); transform: translateX(-50%);
  min-width: 210px; padding: 17px 26px; background: rgba(14, 9, 6, 0.94); color: #fff8e8; white-space: nowrap;
  font: 900 17px/1 var(--font); letter-spacing: 0.3em; border: 3px solid var(--heat); clip-path: var(--notch);
  box-shadow: inset 0 0 0 3px #000;
}
.next-btn.enter { animation: cardIn 0.3s steps(4); }
.next-btn:active { transform: translateX(-50%) translateY(2px); }
.next-btn:disabled { cursor: default; filter: saturate(0.5) brightness(0.8); }
.next-btn:disabled:active { transform: translateX(-50%); }
.ladder { display: flex; flex-direction: column; align-items: center; gap: 5px; }
.ladder .lad-answer { margin-bottom: 8px; font: 800 20px/1.3 var(--font); color: #fff8e8; text-shadow: 0 2px 0 #000; }
.ladder .lad-title { margin-bottom: 6px; font: 700 10px/1 var(--mono); letter-spacing: 0.22em; color: var(--ink-dim); }
.rungs { display: flex; flex-direction: column-reverse; gap: 4px; }
.rung {
  display: grid; grid-template-columns: 26px 1fr auto; align-items: center; gap: 10px;
  width: min(250px, 66vw); padding: 5px 10px; opacity: 0.38;
  background: rgba(15, 10, 7, 0.88); border: 2px solid var(--line); clip-path: var(--notch);
  font: 700 14px/1 var(--font); text-align: left;
}
.rung img { width: 24px; height: 24px; image-rendering: pixelated; }
.rung .pts { font: 700 12px/1 var(--mono); color: var(--ink-dim); }
.rung.on { opacity: 1; border-color: var(--rc); box-shadow: inset 0 0 0 1px var(--rc); }
.rung.land { opacity: 1; border-color: var(--rc); background: rgba(40, 26, 14, 0.95); transform: scale(1.05); }

/* ── Results ──────────────────────────────────────────────── */
.screen-results {
  overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; pointer-events: auto;
  background: linear-gradient(rgba(12, 8, 6, 0.35), rgba(12, 8, 6, 0.8) 30%, rgba(12, 8, 6, 0.9));
}
.results { width: 100%; max-width: 520px; margin: 0 auto; padding: calc(var(--safe-t) + 52px) 16px calc(var(--safe-b) + 28px); }
.res-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; font: 700 11px/1.3 var(--mono); letter-spacing: 0.12em; color: var(--ink-dim); }
.res-head .brand { font: 900 16px/1 var(--font); letter-spacing: 0.2em; color: var(--gold); }
.res-score { display: flex; align-items: baseline; gap: 10px; margin-top: 14px; }
.res-score .big { font: 900 76px/0.9 var(--mono); color: #fff8e8; text-shadow: 0 4px 0 #000; font-variant-numeric: tabular-nums; }
.res-score .unit { font: 800 16px/1 var(--font); color: var(--ink-dim); }
.res-score .depth { margin-left: auto; font: 800 15px/1 var(--mono); color: var(--teal); }
.res-sub { margin: 8px 0 0; font: 12px/1.4 var(--mono); color: var(--ink-faint); }
.res-block { margin-top: 22px; }
.res-block h3 { margin: 0 0 10px; font: 800 11px/1 var(--mono); letter-spacing: 0.2em; color: var(--ink-dim); text-transform: uppercase; }
.res-block h3 small { margin-left: 8px; font-weight: 600; letter-spacing: 0.06em; color: var(--ink-faint); text-transform: none; }
.fixture-tag {
  display: inline-block; margin-left: 6px; padding: 2px 5px; font: 800 9px/1 var(--mono); letter-spacing: 0.08em;
  color: #1d1108; background: var(--heat); vertical-align: 1px;
}
svg.chart { display: block; width: 100%; height: auto; overflow: visible; }
.chart .axis { stroke: rgba(244, 234, 213, 0.35); stroke-width: 1; }
.chart .grid { stroke: rgba(244, 234, 213, 0.12); stroke-width: 1; }
.chart .lbl { fill: var(--ink-faint); font: 600 9px var(--mono); }
.chart .curve { fill: none; stroke: var(--teal); stroke-width: 2; }
.chart .area { fill: rgba(111, 227, 198, 0.12); }
.chart.dist .area { fill: url(#distFill); }
.chart.dist .curve { stroke-linejoin: round; stroke-linecap: round; }
.chart .rug { stroke: var(--teal); stroke-width: 1; opacity: 0.7; }
.chart .you { stroke: var(--heat); stroke-width: 2; }
.chart .you-dot { fill: var(--heat); stroke: #000; stroke-width: 1.5; }
.chart .you-lbl { fill: var(--heat); font: 800 10px var(--mono); }
.chart .stem { stroke-width: 2; }
.pct { margin: 8px 0 0; font: 700 12px/1.4 var(--mono); color: var(--teal); letter-spacing: 0.04em; }
.note-sm { margin: 6px 0 0; font: 11px/1.45 var(--font); color: var(--ink-faint); }
.legend { list-style: none; margin: 0; padding: 0; }
.legend li { display: grid; grid-template-columns: 26px 64px 42px 1fr; align-items: center; gap: 8px; padding: 7px 0; border-bottom: 1px solid rgba(244, 234, 213, 0.08); }
.legend img { width: 24px; height: 24px; image-rendering: pixelated; }
.legend .nm { font: 800 14px/1 var(--font); color: var(--rc); }
.legend .pts { font: 700 12px/1 var(--mono); color: var(--ink-dim); }
.legend .fl { font: 12px/1.4 var(--font); color: var(--ink-dim); }
.share-box {
  margin: 0; padding: 12px 14px; white-space: pre-wrap; word-break: break-all; user-select: text; -webkit-user-select: text;
  font: 14px/1.6 var(--mono); color: #fff8e8; background: rgba(8, 5, 4, 0.8); border: 2px dashed var(--line);
}
.btns { display: flex; gap: 10px; margin-top: 10px; }
.btn {
  flex: 1; padding: 14px 10px; font: 800 15px/1 var(--font); letter-spacing: 0.14em; color: var(--gold);
  background: rgba(14, 9, 6, 0.92); border: 2px solid var(--gold); clip-path: var(--notch);
}
.btn.primary { color: #1d1108; background: var(--gold); border-color: #000; }
.btn.ghost { color: var(--ink-dim); border-color: var(--line); letter-spacing: 0.06em; font-size: 13px; }
.btn.warn { color: var(--heat); border-color: var(--heat); }
.status { min-height: 18px; margin: 8px 0 0; font: 12px/1.4 var(--font); color: var(--teal); }
.qrows { border-top: 1px solid rgba(244, 234, 213, 0.12); }
.qrow { border-bottom: 1px solid rgba(244, 234, 213, 0.12); }
.qhead {
  display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 10px; width: 100%;
  padding: 12px 0; background: none; border: 0; text-align: left;
}
.qhead .qn { font: 800 13px/1 var(--mono); color: var(--ink-faint); }
.qhead .qp { display: block; font: 13px/1.4 var(--font); color: var(--ink-dim); }
.qhead .qy { display: flex; align-items: center; gap: 6px; margin-top: 4px; font: 800 16px/1.3 var(--font); color: #fff8e8; }
.qhead .qy img { width: 20px; height: 20px; image-rendering: pixelated; }
.qhead .qen { display: block; margin-top: 2px; font: 12px/1.3 var(--font); color: var(--ink-faint); }
.qhead .qy.zero { color: var(--zero); font-weight: 600; }
.qhead .qpts { font: 800 15px/1 var(--mono); color: var(--rc, var(--zero)); }
.qhead .qt { font: 800 18px/1 var(--mono); color: var(--ink-dim); text-align: center; }
.qbody { padding: 0 0 14px 32px; }
.qbody .sample { margin: 0 0 10px; font: 12px/1.45 var(--font); color: var(--ink-faint); }
.qsearch {
  width: 100%; height: 40px; padding: 0 10px; border-radius: 0; font: 16px/1 var(--font); color: #fff;
  background: rgba(8, 5, 4, 0.85); border: 2px solid var(--line); outline: none; -webkit-appearance: none; appearance: none;
}
.qsearch:focus { border-color: var(--gold); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0 10px; }
.chip {
  display: inline-flex; align-items: center; gap: 5px; padding: 6px 8px; font: 700 12px/1 var(--font); color: var(--ink-dim);
  background: rgba(14, 9, 6, 0.9); border: 1px solid var(--line);
}
.chip img { width: 14px; height: 14px; image-rendering: pixelated; }
.chip .n { font: 700 11px/1 var(--mono); color: var(--ink-faint); }
.chip[aria-pressed="true"] { color: #1d1108; background: var(--rc, var(--gold)); border-color: #000; }
.chip[aria-pressed="true"] .n { color: #3a230d; }
.showing { margin: 0 0 6px; font: 600 11px/1 var(--mono); color: var(--ink-faint); }
.acc { list-style: none; margin: 0; padding: 0; }
.acc li { display: grid; grid-template-columns: 20px 1fr auto; align-items: center; gap: 8px; padding: 6px 4px; border-bottom: 1px dotted rgba(244, 234, 213, 0.1); }
.acc img { width: 18px; height: 18px; image-rendering: pixelated; }
.acc .zh { font: 600 14px/1.35 var(--font); color: var(--ink); }
.acc .en { display: block; font: 11px/1.3 var(--font); color: var(--ink-faint); }
.acc .pts { font: 700 12px/1 var(--mono); color: var(--rc); }
.acc li.you { background: rgba(244, 192, 78, 0.14); box-shadow: inset 3px 0 0 var(--gold); }
.acc .tag { margin-left: 6px; padding: 1px 4px; font: 800 9px/1.2 var(--mono); color: #1d1108; background: var(--gold); vertical-align: 2px; }
.more { width: 100%; margin-top: 8px; }
.empty-list { padding: 10px 4px; font: 13px/1.4 var(--font); color: var(--ink-faint); }
.res-foot { display: flex; flex-direction: column; gap: 10px; margin-top: 24px; }
.res-next { margin: 14px 0 0; text-align: center; font: 600 12px/1.5 var(--mono); color: var(--ink-dim); }
.noscript { position: fixed; inset: auto 16px 40% 16px; z-index: 70; text-align: center; color: #fff; }

@media (min-width: 700px) {
  .screen-play { padding-left: max(16px, calc(50vw - 300px)); padding-right: max(50px, calc(50vw - 300px)); }
}
@media (max-height: 560px) {
  .screen-play { top: calc(var(--vvt) + var(--safe-t) + 82px); }
  .prompt-card { padding: 10px 12px; }
  .prompt { margin: 6px 0 4px; font-size: clamp(18px, 5.4vw, 24px); }
  .rule { margin-bottom: 4px; font-size: 12px; }
  .foot { display: none; }
}
html.reduce-motion *, html.reduce-motion *::before, html.reduce-motion *::after {
  animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* Source evidence stays one click away from the answer sheet. */
.source-details { margin: 10px 0 14px; font-size: 11px; line-height: 1.55; color: var(--muted, #b7ad9d); }
.source-details summary { cursor: pointer; }
.source-details p, .source-details ul { margin: 8px 0; }
.source-details ul { padding-left: 18px; }
.source-details a { color: #a8d1c5; overflow-wrap: anywhere; }
.source-details pre { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 180px; overflow-y: auto; font-size: 10px; }

/* Hosted controls stay one click away from the primary play action. */
.hosted-home{font:12px/1.55 monospace;color:var(--muted,#bca98a);text-align:center;margin-top:8px;max-width:100%}.hosted-home summary{cursor:pointer}.archive-links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin:10px 0;max-height:130px;overflow:auto}.hosted-home a{color:#e9bd72}.metric-choice{display:flex;align-items:flex-start;gap:8px;text-align:left;margin:12px 0}.metric-choice input{width:18px;height:18px;flex:none}.appeal{display:block;font:11px/1.35 monospace;max-width:100%;margin:5px auto 0;padding:5px 8px;color:#f2d397;background:#291b0e;border:1px solid #846b41;cursor:pointer;overflow-wrap:anywhere}.home-bottom{max-height:60dvh;overflow-y:auto;scrollbar-width:thin}

.answer-frequency{font-size:10px;color:#b8ada0;white-space:nowrap;grid-column:2;justify-self:start}.answer-frequency:empty{display:none}.acc li .pts{grid-column:3;grid-row:1 / span 2}

/* visualViewport shrinks for the phone keyboard even when CSS viewport height does not. */
html.compact-play .screen-play { top: calc(var(--vvt) + var(--safe-t) + 82px); }
html.compact-play .prompt-card { padding: 8px 12px; }
html.compact-play .prompt { margin: 6px 0 4px; font-size: clamp(18px, 5.4vw, 24px); }
html.compact-play .rule { margin-bottom: 2px; font-size: 12px; }
html.compact-play .foot { display: none; }

/* ── Results layout (one narrow column), rewards, shop and upsell ─── */
.clock.is-free { --cc: var(--teal); }
.res-score .big { font-size: clamp(76px, 22vw, 112px); }
.res-score .depth { margin-left: 4px; align-self: flex-end; padding-bottom: 8px; font-size: 14px; }
.results .res-block { margin-top: 26px; }
.pct { margin: 8px 0 0; font: 800 15px/1.3 var(--mono); color: #fff8e8; text-align: center; }
.chart .lbl.pts { font-size: 9px; fill: var(--ink); }
.share-row { margin-top: 0; }
.share-box[hidden] { display: none; }
.share-block .share-box { margin-top: 10px; }
.dig-btn { display: block; width: 100%; margin-top: 18px; padding: 18px 10px; font-size: 18px; }
.res-aux { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px; margin-top: 14px; }
.link-btn { min-height: 40px; padding: 6px 4px; font: 700 13px/1.2 var(--font); color: var(--ink-dim); background: none; border: 0; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.qrow .popular { margin: -4px 0 6px 32px; font: 12px/1.6 var(--font); color: var(--ink-dim); }
.qrow .popular b { margin-right: 6px; color: var(--ink); font-weight: 800; }
.qrow .popular .pop { margin-right: 10px; border-bottom: 2px solid var(--rc, var(--line)); white-space: nowrap; }
.qrow .popular .pop.mine { color: #fff8e8; font-weight: 800; }
.qrow .popular small, .qrow .popular .muted { color: var(--ink-faint); }
.qall { display: block; min-height: 40px; margin: 0 0 10px 32px; padding: 6px 10px; font: 700 13px/1.2 var(--font); color: var(--gold); background: rgba(14, 9, 6, 0.9); border: 1px solid var(--line); cursor: pointer; }
.acc-scroll { max-height: min(60vh, 520px); overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }

/* Coin bank: top-left. Chip (opens the coin hub) + drill shop + trophy on home and
   results; while playing only the chip stays, below the HUD's depth box, and taps on
   it are ignored by rewardsUI. */
.bank {
  position: fixed; z-index: 30; left: 8px; top: calc(var(--vvt) + var(--safe-t));
  display: flex; align-items: center; gap: 6px;
}
body.is-play .bank, body.is-reveal .bank { top: calc(var(--vvt) + var(--safe-t) + 52px); }
body.is-play .bank-btn, body.is-reveal .bank-btn, body.is-play .coin-hint, body.is-reveal .coin-hint { display: none; }
.coin-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 34px; padding: 0 10px 0 8px;
  font: 900 15px/1 var(--mono); color: #ffe08a; background: var(--panel); border: 2px solid var(--gold-deep); clip-path: var(--notch); cursor: pointer;
  font-variant-numeric: tabular-nums;
}
body.is-play .coin-chip, body.is-reveal .coin-chip { height: 28px; font-size: 12px; }
.bank-btn {
  display: inline-flex; align-items: center; gap: 5px; height: 34px; padding: 0 9px 0 7px;
  font: 800 13px/1 var(--font); color: var(--ink); background: var(--panel); border: 2px solid var(--line); clip-path: var(--notch); cursor: pointer;
}
.bank-btn svg { width: 16px; height: 16px; color: var(--gold); }
.bank-btn.bank-sq { width: 36px; padding: 0; justify-content: center; }
.bank-btn:active, .coin-chip:active { transform: translateY(1px); }
/* An original pixel-ish coin: gold disc, dark rim, a bright notch. */
.coin-ico, .coin-fly {
  display: inline-block; flex: none; width: 14px; height: 14px; border-radius: 50%;
  background: radial-gradient(circle at 35% 32%, #fff6c8 0 18%, #ffd54a 19% 58%, #c48322 59% 100%);
  box-shadow: 0 0 0 2px #3a2208, inset -2px -2px 0 rgba(120, 70, 10, 0.55);
}
.coin-ico.big { width: 22px; height: 22px; }
.coin-chip.bump { animation: coinBump 0.32s steps(3); }
@keyframes coinBump { 50% { transform: scale(1.16); } }
.coin-fly { position: fixed; z-index: 61; width: 18px; height: 18px; margin: -9px 0 0 -9px; pointer-events: none; }
.chip-plus {
  position: fixed; z-index: 61; pointer-events: none; font: 900 17px/1 var(--mono); color: #ffe08a; text-shadow: 0 2px 0 #000;
  animation: chipPlus 1.25s ease-out forwards;
}
@keyframes chipPlus { from { transform: translateY(6px); opacity: 0; } 15% { transform: none; opacity: 1; } 70% { opacity: 1; } to { transform: translateY(-10px); opacity: 0; } }
.coin-hint {
  position: fixed; z-index: 31; left: 8px; top: calc(var(--vvt) + var(--safe-t) + 46px); max-width: min(260px, calc(100vw - 70px));
  display: grid; gap: 3px; padding: 9px 12px; text-align: left; color: #1d1108; background: #ffe08a; border: 2px solid #000;
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.45); cursor: pointer; animation: hintIn 0.3s ease-out;
}
.coin-hint::before { content: ""; position: absolute; left: 22px; top: -9px; border: 8px solid transparent; border-top: 0; border-bottom: 8px solid #000; }
.coin-hint::after { content: ""; position: absolute; left: 24px; top: -6px; border: 6px solid transparent; border-top: 0; border-bottom: 6px solid #ffe08a; }
.coin-hint b { font: 800 14px/1.3 var(--font); }
.coin-hint small { font: 700 11px/1.2 var(--font); opacity: 0.7; }
@keyframes hintIn { from { transform: translateY(-6px); opacity: 0; } }
.toasts { position: fixed; z-index: 55; left: 8px; top: calc(var(--vvt) + var(--safe-t) + 42px); display: grid; gap: 6px; width: min(300px, calc(100vw - 16px)); pointer-events: none; }
body.is-play .toasts, body.is-reveal .toasts { top: calc(var(--vvt) + var(--safe-t) + 86px); }
.toast { display: grid; gap: 2px; padding: 8px 12px; color: var(--ink); background: rgba(24, 15, 9, 0.96); border: 2px solid var(--gold); clip-path: var(--notch); animation: toastIn 0.22s ease-out; }
.toast b { font: 800 13px/1.3 var(--font); color: var(--gold); }
.toast small { font: 12px/1.35 var(--font); color: var(--ink-dim); }
.toast .toast-coins { font: 800 14px/1 var(--mono); color: #ffe08a; }
.toast.out { opacity: 0; transition: opacity 0.2s; }
@keyframes toastIn { from { transform: translateX(-12px); opacity: 0; } }
/* Centred reward celebration: never takes pointer input or focus. */
.celebrate { position: fixed; inset: 0; z-index: 56; display: grid; place-items: center; padding: 16px; pointer-events: none; }
body.is-reveal .celebrate, body.is-play .celebrate { align-items: start; padding-top: calc(var(--safe-t) + 96px); }
.cel-card {
  width: min(320px, 100%); padding: 16px 18px 14px; text-align: center; color: var(--ink);
  background: rgba(27, 17, 9, 0.97); border: 3px solid var(--gold); clip-path: var(--notch);
  box-shadow: 0 0 0 3px #000, 0 10px 40px rgba(0, 0, 0, 0.6);
}
.celebrate.in .cel-card { animation: celPop 0.42s cubic-bezier(.2, 1.5, .4, 1); }
.celebrate.out .cel-card { opacity: 0; transform: scale(0.94); transition: opacity 0.24s, transform 0.24s; }
@keyframes celPop { from { transform: scale(0.6); opacity: 0; } }
.cel-kicker { margin: 0; font: 800 12px/1 var(--mono); letter-spacing: 0.18em; color: var(--teal); }
.cel-total { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 10px 0 2px; font: 900 46px/1 var(--mono); color: #ffe08a; text-shadow: 0 3px 0 #000; }
.cel-total small { font: 800 16px/1 var(--font); color: var(--ink); text-shadow: none; }
.cel-head { margin: 4px 0 0; font: 800 16px/1.3 var(--font); color: var(--gold); }
.cel-lines { list-style: none; margin: 10px 0 0; padding: 0; border-top: 1px solid var(--line); }
.cel-lines li { display: flex; justify-content: space-between; gap: 10px; padding: 6px 2px; font: 13px/1.3 var(--font); color: var(--ink-dim); border-bottom: 1px solid rgba(244, 234, 213, 0.08); }
.cel-lines b { font: 800 13px/1.3 var(--mono); color: #ffe08a; }
.cel-foot { margin: 10px 0 0; font: 12px/1.35 var(--font); color: var(--ink-faint); }

/* Sheet (native dialog): a centred pixel card on every screen size. Phones get a
   near-full-height card with a margin all round; tablets and desktops a modal card. */
.sheet {
  --sheet-max-h: min(calc(100dvh - var(--safe-t) - var(--safe-b) - 20px), 780px);
  width: min(540px, calc(100vw - 20px)); max-width: none; max-height: var(--sheet-max-h); margin: auto; padding: 0;
  color: var(--ink); background: #1b120b; border: 2px solid var(--gold-deep);
  box-shadow: 0 0 0 2px #000, 0 8px 0 2px rgba(0, 0, 0, 0.55);
}
.sheet[open] { animation: sheetIn 0.18s ease-out; }
@keyframes sheetIn { from { opacity: 0; transform: translateY(14px) scale(0.98); } }
.sheet::backdrop { background: rgba(6, 3, 2, 0.72); }
.sheet-inner { display: flex; flex-direction: column; max-height: var(--sheet-max-h); }
@media (min-width: 700px) and (min-height: 560px) { .sheet { --sheet-max-h: min(84dvh, 760px); width: min(560px, calc(100vw - 48px)); } }
@media (prefers-reduced-motion: reduce) { .sheet[open] { animation: none; } }
.sheet-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 14px; border-bottom: 1px solid var(--line); background: linear-gradient(#26180e, #1b120b); box-shadow: inset 0 3px 0 rgba(244, 192, 78, 0.18); }
.sheet-head h2 { margin: 0; font: 900 17px/1.2 var(--font); color: var(--gold); letter-spacing: 0.06em; }
.sheet-close { width: 40px; height: 40px; font: 800 16px/1 var(--mono); color: var(--ink-dim); background: none; border: 1px solid var(--line); cursor: pointer; }
.sheet-body { overflow-y: auto; padding: 12px 14px 18px; overscroll-behavior: contain; }
.sheet-body h3 { margin: 18px 0 8px; font: 800 11px/1 var(--mono); letter-spacing: 0.2em; color: var(--ink-dim); }
.stat-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.stat { display: grid; gap: 4px; padding: 8px 4px; text-align: center; background: rgba(8, 5, 4, 0.6); border: 1px solid var(--line); }
.stat b { font: 800 20px/1 var(--mono); color: #fff8e8; }
.stat small { font: 11px/1.2 var(--font); color: var(--ink-faint); }
.ach-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.ach-list li { display: grid; gap: 4px; padding: 8px 10px; border: 1px solid var(--line); color: var(--ink-faint); }
.ach-list li.on { color: var(--ink); border-color: var(--gold); }
.ach-top { display: flex; align-items: center; gap: 8px; }
.ach-top b { flex: 1; font: 800 14px/1.3 var(--font); }
.ach-coins { font: 800 12px/1 var(--mono); color: #ffe08a; }
.ach-list .new { padding: 2px 5px; font: 800 9px/1 var(--mono); color: #1d1108; background: var(--teal); }
.ach-list small { font: 12px/1.35 var(--font); }
.ach-list .done { color: var(--teal); }
.ach-list .bar { display: block; height: 6px; background: #2b2018; border: 1px solid var(--line); }
.ach-list .bar i { display: block; height: 100%; background: var(--teal); }
.balance { margin: 0 0 10px; font: 800 16px/1 var(--mono); color: #ffe08a; }
.shop { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.shop li { display: grid; grid-template-columns: 26px 1fr auto; align-items: center; gap: 10px; padding: 8px 10px; border: 1px solid var(--line); }
.shop li.on { border-color: var(--teal); }
.shop .swatch { width: 22px; height: 22px; background: linear-gradient(var(--sk) 55%, var(--sk2) 55%); border: 2px solid #000; }
.shop .nm { font: 700 14px/1.3 var(--font); }
.shop .nm small { display: block; font: 12px/1.2 var(--mono); color: var(--ink-faint); }
.shop .btn { flex: none; padding: 10px 12px; font-size: 13px; letter-spacing: 0.04em; }
.shop .btn:disabled { opacity: 0.55; }
.shop .equipped { font: 800 12px/1 var(--mono); color: var(--teal); }
.upsell-lead { margin: 0 0 8px; font: 15px/1.5 var(--font); }
.upsell-points { margin: 0 0 12px; padding-left: 20px; font: 14px/1.7 var(--font); color: var(--ink); }
.upsell-state .soon { margin: 6px 0; font: 900 18px/1.3 var(--font); color: var(--gold); }
.upsell-state .price { font: 900 22px/1.2 var(--mono); color: #fff8e8; }
.upsell-state .hi { font: 800 15px/1.3 var(--font); color: var(--teal); }
.upsell-state .archive-links { display: grid; gap: 6px; max-height: 40vh; overflow-y: auto; justify-content: stretch; }
.past-row { display: block; min-height: 40px; padding: 8px 10px; font: 13px/1.3 var(--font); color: var(--ink); text-decoration: none; background: #1f150d; border: 1px solid var(--line); }
.past-row b { font-family: var(--mono); color: var(--gold); }
@media (prefers-reduced-motion: reduce) { .coin-chip.bump, .toast, .coin-hint, .chip-plus, .celebrate.in .cel-card { animation: none; } .toast.out, .celebrate.out .cel-card { transition: none; } }
/* Keep digging: earned-coin past rounds (ui/upsell.js) */
dialog .archive-links { display: grid; gap: 6px; max-height: 50vh; overflow-y: auto; justify-content: stretch; flex-wrap: nowrap; }
dialog .past-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
dialog .past-row > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.btn.small { flex: none; min-height: 34px; padding: 4px 12px; font-size: 13px; }
.btn.small:disabled { opacity: .55; cursor: default; }
/* Results: the next free round, right under Keep digging; first-finish reward of a past round. */
.res-next.free-next { margin: 10px 0 0; font: 800 15px/1.4 var(--mono); color: #fff8e8; letter-spacing: 0.02em; }
.res-reward { margin: 10px 0 0; padding: 8px 10px; font: 800 15px/1.3 var(--font); color: #ffe08a; text-align: center; background: rgba(36, 22, 8, 0.85); border: 2px solid var(--gold-deep); }
/* Coin hub (Keep digging) and the shared earn list */
.hub-balance { padding: 12px; text-align: center; background: rgba(8, 5, 4, 0.6); border: 2px solid var(--gold-deep); }
.hub-coins { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 0; }
.hub-coins b { font: 900 40px/1 var(--mono); color: #ffe08a; font-variant-numeric: tabular-nums; }
.hub-coins small { font: 800 15px/1 var(--font); color: var(--ink); }
.hub-short { margin: 10px 0 0; font: 900 18px/1.3 var(--font); color: var(--heat); }
.hub-ok { margin: 8px 0 0; font: 800 15px/1.3 var(--font); color: var(--teal); }
.hub-balance .note-sm { margin-top: 8px; font-size: 12px; color: var(--ink-dim); }
.earn { width: 100%; border-collapse: collapse; font: 14px/1.35 var(--font); color: var(--ink); }
.earn td { padding: 9px 4px; vertical-align: top; border-bottom: 1px solid rgba(244, 234, 213, 0.1); }
.earn td small { display: block; margin-top: 2px; font: 12px/1.35 var(--font); color: var(--ink-faint); }
.earn .earn-c { width: 1%; padding-left: 10px; text-align: right; white-space: nowrap; font: 900 14px/1.35 var(--mono); color: #ffe08a; }
.earn .bar { display: block; height: 5px; margin-top: 5px; background: #2b2018; border: 1px solid var(--line); }
.earn .bar i { display: block; height: 100%; background: var(--teal); }
.hub-btns { display: flex; gap: 8px; margin-top: 14px; }
.hub-btns .btn { display: inline-flex; align-items: center; justify-content: center; gap: 4px; padding: 12px 8px; }
.hub-btns svg { width: 15px; height: 15px; color: var(--gold); }
.past-tag { font: 12px/1 var(--font); color: var(--teal); }
.balance { display: flex; align-items: center; gap: 6px; }

/* ══ ux/hub-ranks: coin hub, sheet leads, results rank badge, steady countdowns ══
   (ui/upsell.js, ui/rewardsUI.js sheet headers, ui/ranks.js, main.js countdowns).
   Shop item rows are styled elsewhere and are not touched here. */
.bank-btn span { white-space: nowrap; }
.bank-btn svg { flex: none; }
/* Countdowns: the label is written once; only the untranslated clock span ticks. */
.tick { font-family: var(--mono); font-variant-numeric: tabular-nums; white-space: nowrap; }
#homeNext { display: block; min-height: 1.4em; font-variant-numeric: tabular-nums; }
.res-next.free-next { min-height: 1.4em; font-variant-numeric: tabular-nums; }
.hud-val, #clockNum, .coin-n { font-variant-numeric: tabular-nums; }

/* Coin hub top: balance + achievements pill, the two uses of coins, status line. */
.hub-top { padding: 12px 10px; background: rgba(8, 5, 4, 0.6); border: 2px solid var(--gold-deep); }
.hub-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.hub-row .hub-coins { flex: none; gap: 6px; }
.hub-top .hub-coins { justify-content: flex-start; }
.hub-top .hub-coins b { font-size: 38px; }
.hub-ach {
  display: inline-flex; align-items: center; gap: 7px; min-height: 44px; padding: 4px 10px; flex: none; text-align: left;
  color: var(--ink); background: #241810; border: 2px solid var(--line); clip-path: var(--notch); cursor: pointer;
}
.hub-ach svg { flex: none; width: 18px; height: 18px; color: var(--gold); }
.hub-ach span { display: grid; gap: 3px; }
.hub-ach b { font: 800 13px/1 var(--font); }
.hub-ach small { font: 700 11px/1 var(--font); color: #ffe08a; white-space: nowrap; }
.hub-uses-lead { margin: 12px 0 6px; font: 800 11px/1 var(--mono); letter-spacing: 0.16em; color: var(--ink-dim); }
.hub-uses { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.hub-use {
  display: grid; grid-template-columns: 22px minmax(0, 1fr); grid-template-rows: auto auto; align-items: center; column-gap: 7px; row-gap: 5px;
  min-height: 64px; padding: 9px 8px; text-align: left; color: var(--ink); background: #2a1c10; border: 2px solid var(--gold-deep);
  clip-path: var(--notch); cursor: pointer; box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.35);
}
.hub-use:active { transform: translateY(1px); }
.hub-use .hub-use-ico { display: grid; place-items: center; width: 22px; height: 22px; background: #120c09; border: 1px solid var(--line); }
.hub-use .hub-use-ico svg { width: 14px; height: 14px; color: var(--gold); }
.hub-use b { font: 900 14px/1.15 var(--font); color: #ffe08a; }
.hub-use small { grid-column: 1 / -1; font: 12px/1.25 var(--font); color: var(--ink-dim); }
.hub-use.shop { border-color: #3d8f7a; }
.hub-use.shop .hub-use-ico svg, .hub-use.shop b { color: var(--teal); }
.hub-status { margin: 10px 0 0; font: 900 15px/1.3 var(--font); text-align: center; }
.hub-status.is-short { color: var(--heat); }
.hub-status.is-ok { color: var(--teal); }

/* Compact "how to earn coins" card. */
.earn-card { border: 1px solid var(--line); background: rgba(8, 5, 4, 0.45); }
.earn-row {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2px 10px; width: 100%;
  padding: 8px 10px; text-align: left; color: var(--ink); background: none; border: 0; border-bottom: 1px solid rgba(244, 234, 213, 0.08);
}
.earn-row:last-child { border-bottom: 0; }
.earn-what { display: grid; gap: 2px; min-width: 0; }
.earn-what b { font: 700 14px/1.3 var(--font); }
.earn-what small { font: 12px/1.3 var(--font); color: var(--ink-faint); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.earn-row .earn-c { font: 900 14px/1.3 var(--mono); color: #ffe08a; white-space: nowrap; text-align: right; }
.earn-row.go { cursor: pointer; background: rgba(244, 192, 78, 0.07); box-shadow: inset 3px 0 0 var(--gold); }
.earn-row.go .earn-all { grid-column: 2; justify-self: end; font: 800 12px/1 var(--font); color: var(--gold); }
.earn-row.go:active { background: rgba(244, 192, 78, 0.14); }
dialog .hub-past.archive-links { grid-template-columns: minmax(0, 1fr); max-height: none; overflow: visible; }
.sheet-body h3.hub-past-head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; letter-spacing: 0.12em; white-space: nowrap; scroll-margin-top: 8px; }
.hub-past-head small { font: 12px/1.2 var(--font); letter-spacing: 0; color: var(--ink-faint); }
.hub-past-head:focus { outline: none; }

/* Shop and achievements sheet headers. */
.sheet-lead { margin: 0 0 12px; padding: 10px 12px; background: rgba(8, 5, 4, 0.6); border: 1px solid var(--gold-deep); }
.lead-bal { display: flex; align-items: center; gap: 6px; margin: 0; font: 800 15px/1 var(--font); color: var(--ink); }
.lead-bal b { font: 900 24px/1 var(--mono); color: #ffe08a; font-variant-numeric: tabular-nums; }
.lead-txt { margin: 8px 0 0; font: 13px/1.45 var(--font); color: var(--ink-dim); }
.lead-links { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.lead-links .btn { display: inline-flex; align-items: center; gap: 6px; }
.lead-links svg { width: 14px; height: 14px; color: var(--gold); }

/* Results rank badge: big layer icon + name/range, a strip of all nine layers. */
.results .res-block.rank { margin-top: 14px; padding: 12px; background: rgba(8, 5, 4, 0.6); border: 1px solid var(--line); }
.rank-main { display: flex; align-items: center; gap: 12px; }
.rank-big { flex: none; padding: 3px; background: #000; border: 2px solid var(--gold); box-shadow: 0 3px 0 rgba(0, 0, 0, 0.5); }
.rank-ico { display: block; image-rendering: pixelated; }
.rank-txt { display: grid; gap: 3px; min-width: 0; }
.rank-txt small { font: 800 11px/1.2 var(--mono); letter-spacing: 0.12em; color: var(--ink-dim); }
.rank-txt b { font: 900 22px/1.15 var(--font); color: var(--gold); }
.rank-rng { font: 800 13px/1.2 var(--mono); color: #fff8e8; font-variant-numeric: tabular-nums; }
.rank-strip { display: flex; justify-content: space-between; gap: 4px; margin-top: 12px; }
.rank-step { position: relative; flex: 1 1 0; max-width: 36px; aspect-ratio: 1; padding: 2px; background: #000; border: 2px solid #2b2018; cursor: pointer; opacity: 0.45; }
.rank-step .rank-ico { width: 100%; height: 100%; }
.rank-step.past { opacity: 0.9; }
.rank-step.on { opacity: 1; border-color: var(--gold); transform: translateY(-3px); box-shadow: 0 3px 0 var(--gold-deep); }
.rank-step.on::after { content: ""; position: absolute; left: 50%; bottom: -10px; margin-left: -4px; border: 4px solid transparent; border-bottom: 0; border-top: 4px solid var(--gold); }
.rank-step.peek { opacity: 1; border-color: var(--teal); }
.rank-step:focus-visible { outline: 2px solid var(--teal); outline-offset: 1px; }
.rank-cap { min-height: 2.6em; margin: 10px 0 0; font: 12px/1.3 var(--font); color: var(--ink-dim); text-align: center; }
@media (prefers-reduced-motion: reduce) { .rank-step.on { transform: none; } }

/* Home: the rule as a headline (HERO_HEADLINE in ui/i18n.js), and a friend challenge note. */
.hero-rule { margin: 0 0 6px; font: 900 clamp(17px, 5vw, 22px)/1.35 var(--font); letter-spacing: 0.04em; color: var(--gold); text-shadow: 0 2px 0 #000, 0 0 10px rgba(0, 0, 0, 0.5); }
.challenge-home { margin: 0 0 8px; padding: 8px 10px; font: 13px/1.5 var(--font); color: var(--ink); background: var(--panel); border: 2px solid var(--gold-deep); clip-path: var(--notch); }
.challenge-home[hidden] { display: none; }
.challenge-home p { margin: 0; }
.challenge-home .ch-invalid { margin-bottom: 6px; color: var(--ink-dim); }
.challenge-home .link-btn { min-height: 32px; margin-right: 12px; font-size: 12px; }
.ch-tag { display: inline-block; padding: 1px 5px; font: 800 11px/1.4 var(--font); color: #1d1108; background: var(--gold); }
.ch-symbols { letter-spacing: 0.05em; white-space: nowrap; }

/* First-play explainer: a labelled 示例, shown once before the first round. */
.intro-hero { margin: 0 0 10px; font: 900 18px/1.35 var(--font); color: var(--gold); }
.intro-steps { margin: 0; padding-left: 20px; font: 14px/1.6 var(--font); color: var(--ink); }
.intro-steps > li { margin: 0 0 8px; }
.intro-example { margin: 8px 0 4px; padding: 8px 10px; background: rgba(8, 5, 4, 0.7); border: 1px dashed var(--line); }
.intro-example .ex-head { margin: 0 0 6px; font: 700 13px/1.3 var(--font); color: var(--ink-dim); }
.ex-tag { display: inline-block; padding: 1px 5px; font: 800 10px/1.4 var(--mono); letter-spacing: 0.1em; color: #1d1108; background: var(--heat); }
.intro-example ul { list-style: none; margin: 0; padding: 0; }
.intro-example li { display: grid; grid-template-columns: 22px auto auto 1fr; align-items: center; gap: 8px; padding: 4px 0; }
.intro-example img { width: 20px; height: 20px; image-rendering: pixelated; }
.intro-example .ex-ans { font: 800 15px/1.3 var(--font); color: #fff8e8; }
.intro-example .ex-ans small { font-weight: 600; color: var(--ink-faint); }
.intro-example b { font: 800 13px/1 var(--mono); color: var(--rc); }
.intro-example .ex-note { font: 12px/1.3 var(--font); color: var(--ink-faint); }
.intro-actions { margin-top: 14px; }

/* Results: you vs friend (from a challenge link), today's rare finds, credit. */
.vs-block { padding: 12px; background: rgba(8, 5, 4, 0.6); border: 1px solid var(--gold-deep); }
.vs-score { display: flex; justify-content: center; align-items: baseline; gap: 12px; margin: 0; font: 700 13px/1 var(--font); color: var(--ink-dim); }
.vs-score b { font: 900 30px/1 var(--mono); color: #fff8e8; font-variant-numeric: tabular-nums; }
.vs-colon { font: 900 22px/1 var(--mono); color: var(--ink-faint); }
.vs-verdict { margin: 8px 0 10px; text-align: center; font: 800 15px/1.3 var(--font); color: var(--ink-dim); }
.vs-verdict.vs-you { color: var(--teal); }
.vs-verdict.vs-friend { color: var(--heat); }
.vs-legend, .vs-rows li { display: grid; grid-template-columns: 22px 1fr 22px 1fr; align-items: center; gap: 6px; }
.vs-legend { font: 700 10px/1 var(--mono); letter-spacing: 0.12em; color: var(--ink-faint); }
.vs-legend span:first-child { grid-column: 2; }
.vs-legend span:last-child { grid-column: 4; text-align: right; }
.vs-rows { list-style: none; margin: 4px 0 0; padding: 0; }
.vs-rows li { padding: 5px 0; border-top: 1px solid rgba(244, 234, 213, 0.08); }
.vs-rows .qn { font: 800 12px/1 var(--mono); color: var(--ink-faint); }
.vs-side { display: flex; align-items: center; gap: 6px; font: 800 14px/1 var(--mono); color: var(--rc, var(--zero)); font-variant-numeric: tabular-nums; }
.vs-them { justify-content: flex-end; }
.vs-side img { width: 20px; height: 20px; image-rendering: pixelated; }
.vs-mark { text-align: center; font: 900 14px/1 var(--mono); color: var(--ink-faint); }
.vs-rows li.vs-you .vs-mark { color: var(--teal); }
.vs-rows li.vs-friend .vs-mark { color: var(--heat); }
.rf-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid rgba(244, 234, 213, 0.12); }
.rf-list > li { padding: 8px 0; border-bottom: 1px solid rgba(244, 234, 213, 0.12); }
.rf-q { display: block; font: 12px/1.4 var(--font); color: var(--ink-dim); }
.rf-q b { display: inline-block; min-width: 1.4em; font: 800 12px/1 var(--mono); color: var(--ink-faint); }
.rf-finds { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.rf-find { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 5px; padding: 5px 8px; font: 700 14px/1.2 var(--font); color: #fff8e8; background: rgba(8, 5, 4, 0.8); border: 1px solid var(--rc, var(--line)); }
.rf-find img { width: 16px; height: 16px; image-rendering: pixelated; }
.rf-find small { font: 700 11px/1 var(--mono); color: var(--rc); }
.rf-find .rf-en { font: 600 11px/1.2 var(--font); color: var(--ink-faint); }
.rf-find.mine { box-shadow: inset 0 0 0 1px var(--gold); }
.rf-find .tag { padding: 1px 4px; font: 800 9px/1.2 var(--mono); color: #1d1108; background: var(--gold); }
.rf-empty { margin: 0; padding: 10px 12px; font: 13px/1.5 var(--font); color: var(--ink-dim); background: rgba(8, 5, 4, 0.6); border: 1px dashed var(--line); }
.res-credit { margin: 22px 0 0; text-align: center; font: 700 11px/1.4 var(--font); letter-spacing: 0.12em; color: var(--ink-faint); }