/* ==========================================================================
   Third Base — blackjack trainer chrome.
   Materials (felt/wood/cards) live in assets/table.svg + assets/cards.js.
   Every colour here is either a var(--tb-*) token from assets/tokens.css or
   copied verbatim from thirdbase-design-package/reference/mockup.html — the
   authoritative reference this restyle implements. Nothing here is invented.
   ========================================================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; }

body {
  background: var(--tb-backdrop);
  font-family: var(--tb-font-ui);
  color: var(--tb-cream);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

button, select, input { font: inherit; }

.tb-sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- frame / stage ---------- */
.tb-frame {
  position: relative;
  width: 100%;
  max-width: 640px;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 40px 90px -30px #000, 0 0 0 1px #1c211d;
  background: #0b0f0c;
}
/* The SVG viewBox stays 1180x760 (every internal coordinate is unchanged) —
   narrowing this box to 640/760 relies on preserveAspectRatio="xMidYMid slice"
   to crop the sides at 1:1 scale, centred on the felt, rather than shrinking
   everything down. That keeps text/cards/chips at the same rendered size. */
.tb-stage { position: relative; width: 100%; aspect-ratio: 640 / 760; }
.tb-stage svg.table { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.tb-layer { position: absolute; inset: 0; pointer-events: none; }
.tb-layer > * { pointer-events: auto; }

/* ---------- gear: the only permanent chrome ---------- */
.tb-gear {
  position: absolute; top: 2.4%; left: 1.6%;
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--tb-glass); border: 1px solid var(--tb-glass-br);
  backdrop-filter: var(--tb-blur);
  display: grid; place-items: center; cursor: pointer;
  color: var(--tb-gold-ink); font-size: 16px;
  transition: background var(--tb-t-fast), border-color var(--tb-t-fast);
}
.tb-gear:hover, .tb-gear[aria-expanded="true"] { background: rgba(8,14,10,.8); border-color: rgba(238,213,150,.6); }

/* ---------- onboarding tooltip: points at the gear, dismissed on first click ---------- */
.tb-tooltip {
  position: absolute; top: 2.4%; left: 58px;
  max-width: 180px; z-index: 3;
  padding: 9px 13px; border-radius: 10px;
  background: #fff; border: 1px solid rgba(0,0,0,.08);
  box-shadow: var(--tb-shadow-pop);
  color: var(--tb-ink); font-size: 12.5px; line-height: 1.35;
  animation: tb-tooltip-in var(--tb-t-slow) var(--tb-ease);
}
.tb-tooltip[hidden] { display: none; }
.tb-tooltip::before {
  content: ""; position: absolute; top: 50%; left: -6px;
  width: 11px; height: 11px;
  background: #fff;
  border-left: 1px solid rgba(0,0,0,.08); border-bottom: 1px solid rgba(0,0,0,.08);
  transform: translateY(-50%) rotate(45deg);
}
@keyframes tb-tooltip-in {
  from { opacity: 0; transform: translateX(-6px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ---------- count readout: hidden unless asked for ---------- */
.tb-count {
  position: absolute; top: 2.4%; left: 72px;
  display: flex; gap: 1px; border-radius: 9px; overflow: hidden;
  border: 1px solid var(--tb-glass-br);
  background: var(--tb-glass-br);
  opacity: 0; transform: translateY(-6px); pointer-events: none;
  transition: opacity var(--tb-t-slow), transform var(--tb-t-slow);
}
body.show-count .tb-count { opacity: 1; transform: none; pointer-events: auto; }
.tb-count > div { background: var(--tb-glass-2); padding: 7px 13px; text-align: center; backdrop-filter: var(--tb-blur); }
.tb-count .k { font-size: 8.5px; letter-spacing: var(--tb-tracking-label); text-transform: uppercase; color: var(--tb-muted); }
.tb-count .v { font-size: 14px; font-weight: 600; color: var(--tb-cream); font-variant-numeric: tabular-nums; margin-top: 2px; }
.tb-count .v.pos { color: var(--tb-win); }

/* ---------- board message: repurposes the spec's hint slot for general
   status (deal prompts, outcomes, errors) rather than misplay-only text. ---------- */
.tb-message {
  position: absolute; left: 50%; top: 54%; transform: translate(-50%, 0);
  max-width: min(600px, 90%);
  padding: 11px 20px; border-radius: 11px;
  background: var(--tb-glass-2); border: 1px solid var(--tb-glass-br);
  box-shadow: var(--tb-shadow-pop); backdrop-filter: var(--tb-blur);
  font-size: 13.5px; color: var(--tb-cream); text-align: center;
  transition: background var(--tb-t-slow), border-color var(--tb-t-slow);
}
.tb-message:empty { display: none; }
.tb-message.warn { background: var(--tb-warn-bg); border-color: var(--tb-warn-br); color: #f0ded9; }
.tb-message.correct { border-color: rgba(140, 224, 168, .5); }

/* ---------- actions ---------- */
.tb-actions {
  position: absolute; left: 50%; bottom: 8.4%; transform: translateX(-50%);
  display: flex; gap: 10px; align-items: center;
}
.tb-act {
  min-width: 104px; padding: 11px 20px; border-radius: 11px; cursor: pointer;
  background: linear-gradient(180deg, rgba(20,28,22,.86), rgba(6,12,8,.92));
  border: 1px solid var(--tb-glass-br);
  box-shadow: var(--tb-shadow-btn);
  backdrop-filter: var(--tb-blur);
  color: var(--tb-cream-2); font-size: 12.5px; font-weight: 600;
  letter-spacing: var(--tb-tracking-btn); text-transform: uppercase; text-align: center;
  white-space: nowrap;
  transition: color var(--tb-t-fast), border-color var(--tb-t-fast), transform var(--tb-t-fast), box-shadow var(--tb-t-fast);
}
.tb-act:hover:not(:disabled) { color: var(--tb-gold-hi); border-color: rgba(238,213,150,.6); transform: translateY(-1px); }
.tb-act:disabled { opacity: .3; cursor: not-allowed; }
.tb-act--primary {
  background: linear-gradient(180deg, var(--tb-gold-hi), var(--tb-gold) 55%, #a8842f);
  color: #2a1f06; border-color: var(--tb-gold-lo);
  box-shadow: 0 12px 28px -12px rgba(216,180,92,.7), inset 0 1px 0 rgba(255,255,255,.6);
}
.tb-act--primary:hover { filter: brightness(1.06); transform: translateY(-1px); }
/* Subtle marking of the correct move — kept from the old design, restyled to
   the new palette, rather than the spec's post-hoc misplay-only hint. */
.tb-act--recommended:not(:disabled) {
  color: #052a19; border-color: var(--tb-win);
  background: var(--tb-win);
  box-shadow: 0 0 0 4px rgba(140,224,168,.2);
}

/* ---------- status bar ---------- */
.tb-status {
  position: absolute; left: 0; right: 0; bottom: 0; height: 7.2%;
  display: flex; align-items: center; justify-content: center; gap: 22px;
  padding: 0 14px;
  background: linear-gradient(180deg, rgba(4,8,6,.72), rgba(2,4,3,.94));
  border-top: 1px solid var(--tb-glass-br);
  backdrop-filter: blur(10px);
}
.tb-status-field { display: flex; align-items: baseline; gap: 7px; white-space: nowrap; }
.tb-status-field .k { font-size: 9.5px; letter-spacing: var(--tb-tracking-label); text-transform: uppercase; color: var(--tb-muted); }
.tb-status-field .v { font-size: 16px; font-weight: 600; color: var(--tb-cream); font-variant-numeric: tabular-nums; white-space: nowrap; }
.tb-status-field .v.gold { color: var(--tb-gold-ink); }
.tb-status-field .v.pos { color: var(--tb-win); }
.tb-status-field .v.neg { color: var(--tb-lose); }

/* ---------- gear panel: settings, hidden until the gear is clicked ---------- */
.tb-gear-panel[hidden] { display: none; }
.tb-gear-panel {
  position: absolute; top: calc(2.4% + 46px); left: 1.6%;
  z-index: 2;
  display: grid; grid-template-columns: repeat(2, minmax(160px, 1fr)); gap: 12px 16px;
  width: min(480px, 90%);
  padding: 16px;
  border-radius: var(--tb-r-lg);
  background: var(--tb-glass-2); border: 1px solid var(--tb-glass-br);
  box-shadow: var(--tb-shadow-pop); backdrop-filter: var(--tb-blur);
}
.tb-setting label { display: block; margin-bottom: 6px; color: var(--tb-muted); font-size: .72rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.tb-setting select, .tb-setting input {
  width: 100%; min-height: 37px; padding: 7px 9px;
  border: 1px solid var(--tb-glass-br); border-radius: var(--tb-r-sm);
  color: var(--tb-cream); background: rgba(8,14,10,.7);
}
.tb-toggle { display: flex; align-items: center; gap: 9px; min-height: 33px; cursor: pointer; }
.tb-toggle input { width: 16px; height: 16px; accent-color: var(--tb-gold); }
.tb-toggle span { font-size: .82rem; color: var(--tb-cream-2); }

.tb-highscores-open {
  grid-column: 1 / -1;
  background: none; border: 1px solid var(--tb-glass-br); border-radius: var(--tb-r-sm);
  color: var(--tb-gold-ink); font-size: .82rem; font-weight: 600; text-align: left;
  padding: 8px 10px; cursor: pointer;
}
.tb-highscores-open:hover { border-color: rgba(238,213,150,.6); }

/* ---------- high scores: longest no-hint streak, shared across players ---------- */
.tb-highscores[hidden] { display: none; }
.tb-highscores {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  z-index: 4; width: min(340px, 88%);
  padding: 16px; border-radius: var(--tb-r-lg);
  background: var(--tb-glass-2); border: 1px solid var(--tb-glass-br);
  box-shadow: var(--tb-shadow-pop); backdrop-filter: var(--tb-blur);
}
.tb-highscores-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-bottom: 10px; padding-bottom: 10px; border-bottom: 1px solid var(--tb-glass-br);
  font-size: .78rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--tb-muted);
}
.tb-highscores-head button {
  background: none; border: 0; color: var(--tb-cream-2); font-size: 1.1rem; line-height: 1;
  cursor: pointer; padding: 2px 4px;
}
.tb-highscores-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.tb-highscores-list li {
  display: flex; align-items: baseline; gap: 10px;
  font-size: .86rem; color: var(--tb-cream);
}
.tb-highscores-list .rank { width: 1.4em; color: var(--tb-muted); font-variant-numeric: tabular-nums; }
.tb-highscores-list .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tb-highscores-list .streak { color: var(--tb-gold-ink); font-weight: 700; font-variant-numeric: tabular-nums; }
.tb-highscores-status { margin: 8px 0 0; font-size: .78rem; color: var(--tb-muted); text-align: center; }

/* ---------- streak prompt: only shown when a broken streak would actually
   place on the leaderboard — a real moment, styled a touch more deliberately
   than the plain settings/high-scores panels. ---------- */
.tb-streak-prompt[hidden] { display: none; }
.tb-streak-prompt {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  z-index: 5; width: min(300px, 88%);
  padding: 20px; border-radius: var(--tb-r-lg);
  background: var(--tb-glass-2); border: 1px solid rgba(238,213,150,.5);
  box-shadow: 0 0 0 4px rgba(216,180,92,.12), var(--tb-shadow-pop); backdrop-filter: var(--tb-blur);
  text-align: center;
}
.tb-streak-prompt-title {
  margin: 0 0 6px; font-family: var(--tb-font-felt); font-size: 1.1rem; font-weight: 600;
  color: var(--tb-gold-ink); letter-spacing: .02em;
}
.tb-streak-prompt-body { margin: 0 0 14px; font-size: .84rem; color: var(--tb-cream-2); line-height: 1.5; }
.tb-streak-prompt-body #tb-streak-count { color: var(--tb-gold-ink); font-weight: 700; font-variant-numeric: tabular-nums; }
#streak-initials {
  width: 100%; margin-bottom: 12px; padding: 10px; text-align: center;
  font-size: 1.2rem; font-weight: 700; letter-spacing: .3em; text-transform: uppercase;
  border: 1px solid var(--tb-glass-br); border-radius: var(--tb-r-sm);
  color: var(--tb-cream); background: rgba(8,14,10,.7);
}
.tb-streak-prompt .tb-act--primary { width: 100%; }

/* ---------- rules disclosure: below the frame, not on the felt ---------- */
.tb-help { width: 100%; max-width: 1180px; margin-top: 14px; color: var(--tb-muted); font-size: .85rem; }
.tb-help summary { color: var(--tb-cream); cursor: pointer; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
}