/* Retro Puzzle Lab — shared shell styles.
   Tokens follow the house hypercasual-ui system: named by role, re-themed per game by
   swapping values (see PZ.game({ theme })). Each game commits to one visual world, so the
   shell is single-theme per game and sets color-scheme explicitly. */
:root {
  --bg-base: #101828;
  --bg-elevated: #1b2740;
  --bg-sunken: #0a111e;
  --bg-scrim: rgba(6, 10, 20, 0.78);
  --text-primary: #f2f6ff;
  --text-secondary: #93a3bd;
  --text-on-accent: #1a1204;
  --accent-play: #ffb020;
  --accent-purchase: #ff3b30;
  --accent-reward: #ffc739;
  --accent-support: #0a84ff;
  --state-danger: #c2382f;
  --state-disabled: #3a4a63;
  --stroke-subtle: #2a3a58;

  --font: "Nunito", ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", sans-serif;
  /* type scales off the shorter screen side, base frame 393 wide */
  --k: min(calc(min(100vw, 100vh) / 393), 1.35px);
  --s-xs: 4px; --s-sm: 8px; --s-md: 12px; --s-lg: 16px; --s-xl: 24px; --s-2xl: 32px;
  --r-sm: 12px; --r-md: 20px; --r-pill: 999px;
  --touch: 48px; --corner-hit: 56px; --glyph: 26px; --play-h: 72px; --row-h: 56px;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font);
  font-weight: 600;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-user-select: none; user-select: none;
  -webkit-touch-callout: none;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
  touch-action: manipulation;
}
[hidden] { display: none !important; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; margin: 0; cursor: pointer; touch-action: manipulation; }
button:focus-visible, a:focus-visible, textarea:focus-visible { outline: 3px solid var(--accent-support); outline-offset: 2px; }
a { color: inherit; }
svg { display: block; }

.pz-app { position: fixed; inset: 0; background: var(--bg-base); }
.pz-screen { position: absolute; inset: 0; display: flex; flex-direction: column; }

/* ---------- icon buttons (glyph 26, hit 48–56) ---------- */
.pz-ib {
  width: var(--corner-hit); height: var(--corner-hit);
  display: grid; place-items: center; border-radius: 50%;
  color: var(--text-primary); opacity: 0.72;
  transition: transform 80ms ease-out, opacity 120ms;
}
.pz-ib:active { transform: scale(0.96); opacity: 1; }
.pz-ib svg { width: var(--glyph); height: var(--glyph); }
.pz-ib[disabled] { opacity: 0.25; }

/* ---------- home ---------- */
.pz-home {
  padding: calc(env(safe-area-inset-top, 0px) + 12px) 16px calc(env(safe-area-inset-bottom, 0px) + 16px);
  background:
    radial-gradient(120% 70% at 50% 0%, var(--bg-elevated) 0%, transparent 70%),
    var(--bg-base);
}
.pz-corners { position: absolute; top: calc(env(safe-area-inset-top, 0px) + 12px); left: 8px; right: 8px; display: flex; justify-content: space-between; z-index: 2; }
.pz-home-body {
  flex: 1; min-height: 0; display: grid; justify-items: center; text-align: center;
  grid-template-rows: 11fr 11fr 3fr 6fr 3fr 23fr 6fr 11fr 6fr 9fr 11fr;
}
.pz-home-body > * { align-self: center; min-width: 0; max-width: 100%; }
.pz-title { grid-row: 2; font-weight: 900; font-size: calc(var(--k) * 44); line-height: 1.05; letter-spacing: -0.5px; text-wrap: balance; text-transform: uppercase; margin: 0; }
.pz-inspired { grid-row: 3; align-self: start; font-size: 13px; letter-spacing: 0.6px; color: var(--text-secondary); text-transform: uppercase; }
.pz-stat { grid-row: 4; font-weight: 800; font-size: calc(var(--k) * 26); letter-spacing: 0.5px; font-variant-numeric: tabular-nums; }
.pz-band { grid-row: 6; display: grid; gap: 14px; justify-items: center; width: min(100%, 340px); }
.pz-hook { font-size: 17px; line-height: 1.35; color: var(--text-primary); opacity: 0.9; text-wrap: balance; margin: 0; }
.pz-hook::before { content: "“"; } .pz-hook::after { content: "”"; }
.pz-progress { width: 100%; display: grid; gap: 6px; }
.pz-bar { height: 10px; border-radius: var(--r-pill); background: var(--bg-sunken); overflow: hidden; }
.pz-bar > i { display: block; height: 100%; width: 0; background: var(--accent-reward); border-radius: inherit; transition: width 400ms ease-out; }
.pz-progress-label { font-size: 13px; letter-spacing: 0.6px; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.pz-play-wrap { grid-row: 8; width: min(68%, 300px); }
.pz-play {
  width: 100%; height: var(--play-h); border-radius: var(--r-md);
  background: var(--accent-play); color: var(--text-on-accent);
  font-weight: 800; font-size: calc(var(--k) * 28); letter-spacing: 1px; text-transform: uppercase;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.28), 0 14px 30px rgba(0, 0, 0, 0.25);
  transition: transform 80ms ease-out;
  animation: pz-pulse 1.4s ease-in-out 0.6s 3; /* three pulses, then rest */
}
.pz-play:active { transform: scale(0.96); }
@keyframes pz-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.045); } }
.pz-secondary { grid-row: 10; display: flex; gap: 20px; justify-content: center; }
.pz-sec { display: grid; justify-items: center; gap: 2px; color: var(--text-secondary); font-size: 13px; letter-spacing: 0.6px; min-width: 56px; }
.pz-sec .pz-ib { width: 48px; height: 48px; opacity: 0.85; background: var(--bg-elevated); border: 1px solid var(--stroke-subtle); }
.pz-sec a, .pz-sec button { text-decoration: none; display: grid; justify-items: center; gap: 4px; }

/* ---------- play ---------- */
.pz-top {
  display: grid; grid-template-columns: var(--corner-hit) 1fr var(--corner-hit); align-items: center;
  padding: calc(env(safe-area-inset-top, 0px) + 6px) 6px 2px;
}
.pz-hud { text-align: center; min-width: 0; }
.pz-level { font-weight: 900; font-size: calc(var(--k) * 20); letter-spacing: 1px; text-transform: uppercase; line-height: 1.1; }
.pz-info { font-size: 13px; letter-spacing: 0.6px; color: var(--text-secondary); font-variant-numeric: tabular-nums; min-height: 18px; line-height: 18px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pz-stage { position: relative; flex: 1; min-height: 0; }
.pz-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; touch-action: none; }
.pz-bottom {
  display: flex; justify-content: center; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 8px 16px calc(env(safe-area-inset-bottom, 0px) + 14px);
}
.pz-btn {
  height: 56px; min-width: 56px; padding: 0 18px; border-radius: var(--r-md);
  background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--stroke-subtle);
  font-weight: 700; font-size: 17px; letter-spacing: 0.8px; text-transform: uppercase;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: transform 80ms ease-out, background 120ms;
}
.pz-btn svg { width: 24px; height: 24px; flex: none; }
.pz-btn:active { transform: scale(0.96); }
.pz-btn[disabled] { background: var(--state-disabled); color: var(--text-secondary); border-color: transparent; opacity: 0.55; }
.pz-btn.icon { width: 56px; padding: 0; }
.pz-btn.primary {
  background: var(--accent-play); color: var(--text-on-accent); border: 0;
  font-weight: 800; font-size: 20px; letter-spacing: 1px; min-width: 132px; height: 60px;
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.28);
}
.pz-btn.on { background: var(--accent-support); color: #fff; border-color: transparent; }
.pz-btn.primary[disabled] { background: var(--state-disabled); color: var(--text-secondary); box-shadow: none; }

/* ---------- toast + intro card ---------- */
.pz-toast {
  position: absolute; left: 50%; top: 10px; z-index: 6;
  transform: translate(-50%, -8px); opacity: 0; pointer-events: none;
  max-width: calc(100% - 32px); width: max-content; text-align: center;
  background: var(--bg-elevated); color: var(--text-primary); border: 1px solid var(--stroke-subtle);
  border-radius: var(--r-pill); padding: 10px 18px; font-size: 15px; font-weight: 700;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  transition: opacity 180ms ease-out, transform 180ms ease-out;
}
.pz-toast.show { opacity: 1; transform: translate(-50%, 0); }
.pz-intro {
  position: absolute; left: 16px; right: 16px; bottom: 10px; z-index: 5;
  margin: 0 auto; max-width: 420px;
  background: var(--bg-elevated); border: 1px solid var(--stroke-subtle); border-radius: var(--r-sm);
  padding: 12px 16px; display: grid; gap: 4px; text-align: left;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  opacity: 0; transform: translateY(10px); transition: opacity 200ms ease-out, transform 200ms ease-out; pointer-events: none;
}
.pz-intro.show { opacity: 1; transform: none; pointer-events: auto; }
.pz-intro b { font-size: 13px; letter-spacing: 0.6px; text-transform: uppercase; color: var(--accent-reward); }
.pz-intro span { font-size: 16px; line-height: 1.35; }

/* ---------- sheets (settings / pause / levels) ---------- */
.pz-sheet-wrap {
  position: fixed; inset: 0; z-index: 20; background: var(--bg-scrim);
  display: flex; align-items: flex-end; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 200ms ease-out;
}
.pz-sheet-wrap.open { opacity: 1; pointer-events: auto; }
.pz-sheet {
  width: 100%; max-width: 520px; max-height: 88%; overflow-y: auto; -webkit-overflow-scrolling: touch;
  background: var(--bg-elevated); border-radius: 24px 24px 0 0;
  padding: 8px 16px calc(env(safe-area-inset-bottom, 0px) + 20px);
  transform: translateY(28px); transition: transform 220ms ease-out;
  -webkit-user-select: none; user-select: none;
}
.pz-sheet-wrap.open .pz-sheet { transform: none; }
.pz-sheet-head { display: grid; grid-template-columns: 48px 1fr 48px; align-items: center; min-height: 56px; }
.pz-sheet-head h2 { margin: 0; text-align: center; font-size: 20px; font-weight: 800; letter-spacing: 0.8px; text-transform: uppercase; }
.pz-sheet-head .pz-ib { width: 48px; height: 48px; }
.pz-sheet-body { display: grid; gap: 12px; }
.pz-row {
  min-height: var(--row-h); display: flex; align-items: center; justify-content: space-between; gap: 12px;
  border-bottom: 1px solid var(--stroke-subtle); font-size: 17px; text-decoration: none;
}
.pz-row:last-child { border-bottom: 0; }
.pz-row small { display: block; font-size: 13px; color: var(--text-secondary); letter-spacing: 0.3px; font-weight: 600; }
.pz-toggle { width: 52px; height: 32px; border-radius: var(--r-pill); background: var(--state-disabled); position: relative; flex: none; transition: background 150ms; }
.pz-toggle::after { content: ""; position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%; background: #fff; transition: transform 150ms ease-out; }
.pz-toggle[aria-checked="true"] { background: var(--accent-support); }
.pz-toggle[aria-checked="true"]::after { transform: translateX(20px); }
.pz-sheet .pz-btn { width: 100%; }
.pz-sheet .pz-stack { display: grid; gap: 10px; }
.pz-rules { font-size: 15px; line-height: 1.45; color: var(--text-secondary); margin: 0; white-space: pre-line; }
.pz-rate { display: flex; gap: 6px; }
.pz-rate button { font-size: 30px; line-height: 1; color: var(--state-disabled); width: 44px; height: 44px; }
.pz-rate button.on { color: var(--accent-reward); }
.pz-note {
  width: 100%; min-height: 72px; resize: vertical; border-radius: var(--r-sm); border: 1px solid var(--stroke-subtle);
  background: var(--bg-sunken); color: var(--text-primary); font: 600 15px/1.4 var(--font); padding: 10px 12px;
  -webkit-user-select: text; user-select: text;
}
.pz-danger { color: var(--state-danger); }

/* level grid */
.pz-levels { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; padding-block: 4px 8px; }
.pz-lv {
  aspect-ratio: 1; border-radius: 14px; background: var(--bg-sunken); border: 1px solid var(--stroke-subtle);
  display: grid; place-items: center; align-content: center; gap: 2px;
  font-weight: 800; font-size: 20px; font-variant-numeric: tabular-nums; transition: transform 80ms ease-out;
}
.pz-lv:active { transform: scale(0.96); }
.pz-lv small { font-size: 11px; letter-spacing: 1px; color: var(--accent-reward); line-height: 1; min-height: 11px; }
.pz-lv.done { background: var(--bg-base); }
.pz-lv.current { border: 2px solid var(--accent-play); }
.pz-section-label { font-size: 13px; letter-spacing: 0.6px; text-transform: uppercase; color: var(--text-secondary); margin: 8px 0 0; }

/* ---------- result modal (level complete / fail) ---------- */
.pz-modal-wrap {
  position: fixed; inset: 0; z-index: 30; display: grid; place-items: center; padding: 16px;
  background: var(--bg-scrim); opacity: 0; pointer-events: none; transition: opacity 220ms ease-out;
}
.pz-modal-wrap.open { opacity: 1; pointer-events: auto; }
.pz-modal {
  width: min(360px, 100%); background: var(--bg-elevated); border-radius: 28px; padding: 24px 20px 20px;
  text-align: center; display: grid; gap: 14px; border: 1px solid var(--stroke-subtle);
  transform: scale(0.92); transition: transform 240ms cubic-bezier(0.2, 1.4, 0.4, 1);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.pz-modal-wrap.open .pz-modal { transform: none; }
.pz-modal h2 { margin: 0; font-size: calc(var(--k) * 34); font-weight: 900; letter-spacing: -0.3px; text-transform: uppercase; }
.pz-modal p { margin: 0; font-size: 17px; line-height: 1.35; color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.pz-stars { display: flex; justify-content: center; gap: 8px; min-height: 52px; }
.pz-stars svg { width: 48px; height: 48px; color: var(--state-disabled); transform: scale(0.4); opacity: 0.5; transition: transform 300ms cubic-bezier(0.2, 1.6, 0.4, 1), opacity 200ms, color 200ms; }
.pz-stars svg.on { color: var(--accent-reward); transform: scale(1); opacity: 1; }
.pz-stars svg.off { transform: scale(0.85); opacity: 0.7; }
.pz-modal .pz-actions { display: grid; gap: 10px; }
.pz-modal .pz-actions .pz-btn { width: 100%; }
.pz-modal .pz-row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

@media (prefers-reduced-motion: reduce) {
  .pz-play { animation: none; }
  .pz-sheet, .pz-modal, .pz-toast, .pz-intro { transition: opacity 150ms linear !important; transform: none !important; }
}

/* ---------- v2: economy, chapters, locks ---------- */
.pz-hint { position: relative; }
.pz-hint > span:first-child { display: grid; place-items: center; }
.pz-hint svg { width: var(--glyph); height: var(--glyph); }
.pz-badge {
  position: absolute; right: 2px; bottom: 4px; min-width: 22px; height: 18px; padding: 0 5px;
  border-radius: var(--r-pill); background: var(--accent-reward); color: #2a1d00;
  font-size: 11px; font-weight: 900; line-height: 18px; text-align: center; font-variant-numeric: tabular-nums;
}
.pz-sec-coins { color: var(--text-primary); font-weight: 800; font-variant-numeric: tabular-nums; }
.pz-sec-coins .pz-ib { background: transparent; border-color: transparent; opacity: 1; }
.pz-coin-line { display: inline-flex; align-items: center; justify-content: center; gap: 6px; color: var(--text-primary) !important; font-weight: 800; }
.pz-coin-line svg { width: 22px; height: 22px; }
.pz-coins-inline { font-weight: 800; font-variant-numeric: tabular-nums; }
.pz-chapter { display: flex; justify-content: space-between; gap: 8px; margin-top: 14px !important; }
.pz-chapter span:last-child { color: var(--accent-reward); }
.pz-lv.locked { opacity: 0.45; }
.pz-lock svg { width: 20px; height: 20px; }
a.pz-row { color: inherit; }