:root {
  --void: #07080b;
  --glass: #0e1118;
  --stage: #141821;
  --rack: #10141c;
  --ink: #e7edf6;
  --mute: #9aa6b8;
  --line: #2a3344;
  --program: #ff2d2d;
  --preview: #3ee0ff;
  --amber: #ffc24a;
  --ok: #4ad48a;
  --font-ui: "Red Hat Text", "Segoe UI", sans-serif;
  --font-lt: "Teko", "Arial Narrow", sans-serif;
  --font-mono: "Red Hat Mono", ui-monospace, monospace;
  --radius: 2px;
}

* { box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 70% -10%, #1a2436 0%, transparent 55%),
    var(--void);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--preview); color: #041018; }
:focus-visible { outline: 2px solid var(--preview); outline-offset: 2px; }
input, textarea, button, select { font: inherit; color: inherit; }

.shell {
  height: 100%;
  min-height: 0;
  display: grid;
  grid-template-rows: 44px minmax(0, 1fr) 28px;
  grid-template-columns: 168px minmax(0, 1fr);
  grid-template-areas:
    "strip strip"
    "rail main"
    "tick tick";
}

.strip {
  grid-area: strip;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 14px;
  background: #080a0f;
  border-bottom: 1px solid var(--line);
}
.wordmark {
  font-family: var(--font-lt);
  font-size: 26px;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--ink);
  line-height: 1;
}
.wordmark span { color: var(--program); }
.strip-clock, .strip-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mute);
}
.strip-meta { margin-left: auto; display: flex; gap: 14px; align-items: center; }
.pill {
  border: 1px solid var(--line);
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.pill.live { border-color: var(--program); color: var(--program); }
.pill.ok { border-color: var(--ok); color: var(--ok); }
.pill.warn { border-color: var(--amber); color: var(--amber); }

.rail {
  grid-area: rail;
  background: var(--glass);
  border-right: 1px solid var(--line);
  padding: 12px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 0;
  overflow-y: auto;
}
.rail a {
  color: var(--mute);
  text-decoration: none;
  padding: 10px 14px;
  display: block;
  border-left: 2px solid transparent;
}
.rail a:hover { color: var(--ink); background: #161b26; }
.rail a[aria-current="page"] {
  color: var(--ink);
  border-left-color: var(--program);
  background: #161b26;
}
.rail .id {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--amber);
}

.main { grid-area: main; min-width: 0; min-height: 0; overflow: auto; }
.ticker {
  grid-area: tick;
  background: #080a0f;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--mute);
  display: flex;
  align-items: center;
  padding: 0 14px;
  overflow: hidden;
  white-space: nowrap;
}
.ticker b { color: var(--amber); font-weight: 600; margin-right: 10px; }

.booth {
  height: 100%;
  max-height: 100%;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 360px);
  grid-template-rows: minmax(0, 1fr);
  overflow: hidden;
}
.stage, .rack {
  min-height: 0;
  max-height: 100%;
  overflow: auto;
}
.stage {
  padding: 12px 16px 48px;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: #6a7a90 #12161e;
}
.stage > * { flex-shrink: 0; }
.stage::-webkit-scrollbar { width: 10px; }
.stage::-webkit-scrollbar-track { background: #12161e; }
.stage::-webkit-scrollbar-thumb { background: #5a6a80; }
html[data-booth="arena"] .stage { overflow: hidden; scrollbar-gutter: auto; }
.board-slot {
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  container-type: size;
}
.rack {
  background: var(--rack);
  border-left: 1px solid var(--line);
  padding: 14px 14px 24px;
}

h1, h2, h3 { margin: 0; }
h1 {
  font-family: var(--font-lt);
  font-size: 42px;
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 0.95;
}
h2 {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 600;
  margin-bottom: 10px;
}
.lede { color: var(--mute); max-width: 62ch; margin: 8px 0 16px; }

label { display: block; font-size: 11px; color: var(--mute); margin: 0 0 4px; }
input[type="text"], input[type="password"], input[type="number"], textarea, select {
  width: 100%;
  background: #0a0d13;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 8px 10px;
  outline: none;
}
textarea { min-height: 140px; resize: vertical; font-family: var(--font-mono); font-size: 12px; }
input:focus, textarea:focus, select:focus { border-color: var(--preview); }

.seg {
  display: flex;
  background: #0a0d13;
  border: 1px solid var(--line);
  padding: 3px;
  gap: 3px;
  margin-bottom: 10px;
}
.seg button {
  flex: 1;
  background: transparent;
  border: 0;
  color: var(--mute);
  padding: 6px 8px;
  cursor: pointer;
  font-weight: 600;
}
.seg button[aria-pressed="true"], .seg button.active {
  background: #1a2230;
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--preview);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--program);
  color: #140404;
  border: 0;
  padding: 9px 12px;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 12px;
}
.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.preview { background: var(--preview); color: #041018; }
.btn-row { display: flex; gap: 8px; margin: 10px 0; }
.btn-row .btn { flex: 1; }

.field { margin-bottom: 12px; }
.kv { display: flex; justify-content: space-between; gap: 10px; font-size: 12px; }
.kv .k { color: var(--mute); }
.kv .v { font-family: var(--font-mono); }
.mass { height: 6px; background: #0a0d13; border: 1px solid var(--line); margin: 6px 0 10px; }
.mass > i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--ok), var(--amber)); transition: width 500ms ease-out; }

.plate {
  border: 1px solid var(--line);
  padding: 10px 12px;
  margin-bottom: 12px;
  background: #0c1018;
}
.plate.live { border-color: var(--program); }
.plate.wait { border-style: dashed; }
.plate h3 {
  font-family: var(--font-lt);
  font-size: 28px;
  letter-spacing: 0.06em;
}
.san-xl {
  font-family: var(--font-lt);
  font-size: 56px;
  line-height: 0.9;
  color: var(--amber);
}

.board-wrap {
  width: min(100cqw, 100cqh);
  height: min(100cqw, 100cqh);
  max-width: 100%;
  max-height: 100%;
  overflow: visible;
}
@supports not (width: 1cqh) {
  .board-wrap {
    width: min(100%, 70vh);
    max-height: 100%;
    aspect-ratio: 1;
    height: auto;
  }
}
g-chess-board {
  display: block; width: 100%; height: 100%;
  --square-color-dark: #3d4a63;
  --square-color-light: #c5cde0;
  --arrow-color-primary: hsl(186deg 100% 55% / 85%);
}
.lower-third {
  flex: 0 0 auto;
  margin-top: 10px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-left: 4px solid var(--program);
  padding-left: 12px;
}
.hist-row { display: grid; grid-template-columns: 28px 1fr 1fr; gap: 6px; margin-bottom: 4px; }
.hist-num { color: var(--mute); font-family: var(--font-mono); font-size: 12px; }
.ply {
  background: #0a0d13;
  border: 1px solid var(--line);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: left;
  padding: 4px 8px;
  cursor: pointer;
}
.ply.active { background: var(--amber); color: #1a1204; border-color: var(--amber); }
.ply.chase { box-shadow: inset 3px 0 0 var(--preview); }
.lower-third .pip {
  width: 8px; height: 8px; background: var(--program);
  display: inline-block; margin-left: 8px;
  animation: chase 1.05s steps(4) infinite;
}
@keyframes chase {
  0% { opacity: 1; transform: translateX(0); }
  50% { opacity: 0.25; transform: translateX(6px); }
  100% { opacity: 1; transform: translateX(0); }
}
@media (prefers-reduced-motion: reduce) {
  .lower-third .pip { animation: none; }
}

.top-row { display: grid; grid-template-columns: 16px 1fr auto; gap: 8px; font-family: var(--font-mono); font-size: 12px; padding: 2px 0; }
.top-row.lead { color: var(--amber); }

.promo-overlay {
  position: fixed; inset: 0; background: rgba(4, 6, 10, 0.72);
  display: none; align-items: center; justify-content: center; z-index: 40;
}
.promo-overlay.show { display: flex; }
.promo-card { background: var(--rack); border: 1px solid var(--line); padding: 18px; min-width: 260px; text-align: center; }
.promo-choices { display: flex; gap: 8px; justify-content: center; margin: 12px 0; }
.promo-btn {
  width: 56px; height: 56px; background: #0a0d13; border: 1px solid var(--line); cursor: pointer;
  font-size: 28px;
}

.home {
  padding: 28px 32px 48px;
  max-width: 980px;
}
.home-cta { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.booth-index {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-top: 28px;
}
.booth-index a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  padding: 14px 14px 16px;
  background: #0c1018;
}
.booth-index a:hover { border-color: var(--preview); }

.examples {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0 14px;
}
.ex-btn, .examples button {
  font: inherit;
  font-size: 12px;
  color: var(--ink);
  background: #0a0d13;
  border: 1px solid var(--line);
  padding: 6px 10px;
  cursor: pointer;
}
.ex-btn.active, .examples button.active {
  border-color: var(--amber);
  color: var(--amber);
}
.ex-group { margin: 8px 0 14px; }
.ex-group h3 {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mute);
}
.scene {
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.45;
  border: 1px solid var(--line);
  padding: 12px 14px;
  background: #0c1018;
  max-width: 72ch;
  margin: 0 0 12px;
}
.legend { color: var(--mute); font-size: 12px; margin: 0 0 10px; }
.loop-hud { margin: 12px 0; max-width: 420px; }
.loop-hud .kv { margin-top: 4px; }

.answer-block {
  border: 1px solid var(--line);
  padding: 12px 14px;
  margin-bottom: 10px;
  background: #0c1018;
}
.answer-block.tone-bad { border-color: #7a2a2a; }
.answer-block.tone-warn { border-color: #5a4a18; }
.answer-block.tone-ok { border-color: #1a3a22; }
.score-hero {
  font-family: var(--font-lt);
  font-size: 36px;
  letter-spacing: 0.04em;
  line-height: 1.1;
  margin: 4px 0 10px;
}
.score-hero.tone-bad, .bar-row.tone-bad .k, .bar-row.tone-bad .v { color: var(--program); }
.score-hero.tone-warn, .bar-row.tone-warn .k, .bar-row.tone-warn .v { color: var(--amber); }
.score-hero.tone-ok, .bar-row.tone-ok .k, .bar-row.tone-ok .v { color: var(--ok); }
.meter {
  height: 10px;
  background: #080a0f;
  border: 1px solid var(--line);
  margin: 6px 0 10px;
  overflow: hidden;
}
.meter > i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--preview);
  transition: width 500ms ease-out;
}
.meter.tone-bad > i { background: var(--program); }
.meter.tone-warn > i { background: var(--amber); }
.meter.tone-ok > i { background: var(--ok); }
.bar-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: baseline;
  margin-top: 8px;
}
.bar-row .meter { grid-column: 1 / -1; margin-top: 0; }
#gateWhy.tone-bad { color: var(--program); }
#gateWhy.tone-warn { color: var(--amber); }
#gateWhy.tone-ok { color: var(--ok); }
@media (prefers-reduced-motion: reduce) {
  .meter > i, .mass > i { transition: none; }
}
.file-warn {
  display: none;
  margin: 0 0 12px;
  padding: 8px 10px;
  border: 1px solid var(--program);
  color: #ffd0d0;
}
.file-warn.show { display: block; }

.gate {
  font-family: var(--font-lt);
  font-size: 48px;
  letter-spacing: 0.06em;
  margin: 8px 0 12px;
}
.gate.pass { color: var(--ok); }
.gate.review { color: var(--amber); }
.gate.block { color: var(--program); }

.line-list {
  font-family: var(--font-mono);
  font-size: 12px;
  max-height: 52vh;
  overflow: auto;
  border: 1px solid var(--line);
  background: #0a0d13;
}
.line-list div {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 10px;
  padding: 4px 10px;
  border-bottom: 1px solid #1a2230;
}
.line-list div.hit { background: #1a2a18; color: var(--ok); }
.line-list .ln { color: var(--amber); }

.world {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 3px;
  width: min(360px, 100%);
  min-height: 220px;
}
.cell {
  aspect-ratio: 1;
  background: #0a0d13;
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
}
.cell.you { background: #1a2230; border-color: var(--preview); color: var(--preview); }
.cell.foe { background: #2a1212; border-color: var(--program); color: var(--program); }
.cell.shot { background: #2a2410; border-color: var(--amber); }

.log {
  font-family: var(--font-mono);
  font-size: 12px;
  max-height: 28vh;
  overflow: auto;
  border: 1px solid var(--line);
  padding: 8px 10px;
  background: #0a0d13;
}
.log div { margin-bottom: 4px; }

.home-proof {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin: 18px 0 8px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: #0c1018;
  font-family: var(--font-mono);
  font-size: 12px;
}
.home-proof b { color: var(--amber); font-weight: 600; }
.kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 8px;
}
.check { color: var(--mute); max-width: 56ch; }
.check + .check { margin-top: 6px; }

@media (max-width: 900px) {
  html, body { overflow: auto; }
  .shell {
    height: auto;
    min-height: 100%;
    grid-template-columns: 1fr;
    grid-template-rows: 44px auto 1fr 28px;
    grid-template-areas: "strip" "rail" "main" "tick";
  }
  .rail { flex-direction: row; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .rail a { white-space: nowrap; }
  .booth { grid-template-columns: 1fr; height: auto; overflow: visible; }
  .stage { overflow: visible; }
  .board-slot { min-height: min(72vw, 520px); }
  .rack { border-left: 0; border-top: 1px solid var(--line); }
  h1 { font-size: 32px; }
}