:root {
  --ground: #15121e;
  --surface: #1e1a2b;
  --line: #2e2840;
  --line-strong: #3a3350;
  --ink: #f3eee4;
  --muted: #b9b1c9;
  --faint: #8d85a0;
  --amber: #f2b33d;
  --amber-hi: #ffc657;
  --coral: #e4572e;
  --teal: #1fa392;
  --teal-ink: #8fd9cc;
  --violet: #7b6cf6;
  --bone: #e9e4d8;
  --on-amber: #1b1426;
  --display: "Bricolage Grotesque", "Avenir Next", sans-serif;
  --mono: "DM Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { color-scheme: dark; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
/* Stops double-tap zoom when tapping buttons or tiles in quick succession. */
html, body, button { touch-action: manipulation; }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--display);
  -webkit-tap-highlight-color: transparent;
}
[hidden] { display: none !important; }
button { font: inherit; }

.app {
  position: relative;
  max-width: 440px;
  min-height: 100dvh;
  margin: 0 auto;
  padding: max(20px, env(safe-area-inset-top)) 16px max(20px, env(safe-area-inset-bottom));
  display: flex;
}
.screen { flex: 1; display: flex; flex-direction: column; gap: 16px; }
.playing .app { height: 100dvh; padding-top: max(12px, env(safe-area-inset-top)); padding-bottom: max(12px, env(safe-area-inset-bottom)); }
#play { min-height: 0; gap: 10px; }

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.strong { font-weight: 700; }
.amber { color: var(--amber); }
.teal { color: var(--teal-ink); }
p { margin: 0; line-height: 1.4; }
.push-down { margin-top: auto; }
.eyebrow { font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; }

.topline { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.swatches { display: flex; gap: 6px; }
.swatches span { width: 14px; height: 14px; border-radius: 4px; }
.pills { display: flex; gap: 8px; }

.flame { width: 16px; height: 16px; fill: var(--coral); }
.flame.big { width: 34px; height: 34px; flex: none; }

.hero { margin-top: 12px; }
.hero h1 { margin: 0; font-size: clamp(52px, 16vw, 64px); line-height: .92; font-weight: 800; letter-spacing: -0.03em; }
.hero p { margin-top: 12px; font-size: 17px; color: var(--muted); }
h2 { margin: 0 0 6px; font-size: 40px; font-weight: 800; letter-spacing: -0.02em; }

.card {
  background: var(--surface);
  border: 1.5px solid var(--line);
  border-radius: 20px;
  padding: 18px;
  display: flex; flex-direction: column; gap: 12px;
}
.card .muted { font-size: 15px; }
.card-head, .card-row { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.card-head .num { font-size: 13px; }
.card-row { font-size: 14px; }

.btn {
  appearance: none; border: 0; cursor: pointer;
  min-height: 52px; border-radius: 14px; padding: 0 20px;
  font-weight: 700; font-size: 17px;
  background: var(--amber); color: var(--on-amber);
  transition: transform .1s ease, background .15s ease;
}
.btn:hover { background: var(--amber-hi); }
.btn:active { transform: scale(.97); }
.btn:disabled { background: #2e2840; color: var(--faint); cursor: not-allowed; }

.ghost {
  appearance: none; cursor: pointer;
  min-height: 48px; border-radius: 14px; padding: 0 18px;
  font-weight: 600; font-size: 15px;
  background: transparent; color: var(--ink);
  border: 1.5px solid var(--line-strong);
  transition: border-color .15s ease, background .15s ease;
}
.ghost:hover { border-color: var(--amber); background: #1f1a2c; }
.ghost.big { min-height: 52px; font-size: 17px; }
.pill, .pill-static { min-height: 40px; padding: 0 12px; display: inline-flex; align-items: center; gap: 6px; }
.pill-static .num { font-size: 18px; }

.icon {
  appearance: none; cursor: pointer;
  width: 44px; height: 44px; padding: 0;
  border-radius: 12px; border: 1.5px solid var(--line-strong);
  background: transparent; color: var(--ink);
  display: flex; align-items: center; justify-content: center;
}
.icon:hover { border-color: var(--amber); }
.icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.hearth {
  appearance: none; cursor: pointer; color: var(--ink);
  border: 1.5px solid var(--line-strong); background: #1c1828;
  border-radius: 16px; padding: 12px 14px;
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  transition: transform .08s ease, border-color .15s;
}
.hearth:hover { border-color: var(--coral); }
.hearth:active { transform: scale(.98); }
.hearth:disabled { cursor: default; opacity: .6; }
.hearth:disabled .flame { fill: #5a5170; }
.hearth-body { display: flex; flex-direction: column; gap: 2px; flex: 1; font-size: 15px; }

.howto { margin-top: auto; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; font-size: 12px; line-height: 1.35; color: var(--muted); }
.howto b { display: block; color: var(--ink); font-size: 13px; }

/* play */
.level { min-width: 44px; text-align: right; font-size: 15px; }
.scoreline { display: flex; justify-content: space-between; align-items: flex-end; }
.scoreline .right { text-align: right; }
.label { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.big-num { font-size: 40px; font-weight: 500; line-height: 1.05; }
.big-num.low { color: #ff8a65; }

.progress { display: flex; flex-direction: column; gap: 6px; }
.progress-head { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); }
.bar { height: 10px; border-radius: 6px; background: #2a2439; overflow: hidden; }
.fill { height: 100%; width: 0; border-radius: 6px; background: var(--amber); transition: width .3s ease; }

.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.stat { background: var(--surface); border-radius: 12px; padding: 8px 10px; gap: 6px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; }
.stat .num { font-size: 17px; }

.board-wrap { position: relative; flex: 1; min-height: 0; container-type: size; display: flex; align-items: center; justify-content: center; }
/* Largest 7×8 board that fits: 6 column gaps (24px) across, 7 row gaps (28px) down. */
.board { width: min(100cqw, (100cqh - 28px) * 7 / 8 + 24px); display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 4px; }

.tile {
  appearance: none; border: 0; padding: 0; margin: 0;
  border-radius: 22%;
  width: 100%; aspect-ratio: 1 / 1;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: transform .12s ease, opacity .15s ease, box-shadow .12s ease;
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, .2);
}
.tile { position: relative; }
.tile svg { width: 52%; height: 52%; }
.tile.ash { cursor: default; background-image: repeating-linear-gradient(135deg, rgba(255, 255, 255, .07) 0 3px, transparent 3px 9px); }
.tile.ash:hover { transform: none; }
.tile.spark::after, .spark-chip::after {
  content: ""; position: absolute; top: 9%; right: 9%;
  width: 22%; height: 22%; border-radius: 50%;
  background: #fffaf0; box-shadow: 0 0 0 2px rgba(20, 16, 30, .55), 0 0 8px 2px rgba(255, 236, 190, .9);
}
.tile:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; }
.board.focus .tile { opacity: .38; }
.board.focus .tile.hl { opacity: 1; }
.tile.hl { box-shadow: 0 0 0 2px var(--ink), inset 0 -3px 0 rgba(0, 0, 0, .2); }
@keyframes armed { 50% { box-shadow: 0 0 0 4px var(--amber), 0 0 18px 4px rgba(242, 179, 61, .55); } }
.tile.armed { opacity: 1 !important; box-shadow: 0 0 0 3px var(--amber); animation: armed 1s ease-in-out infinite; }
@media (hover: hover) { .tile:hover { transform: translateY(-2px); } }
@keyframes drop { from { transform: translateY(-26px); opacity: 0; } to { transform: none; opacity: 1; } }
.tile.drop { animation: drop .34s cubic-bezier(.2, .9, .3, 1.25) both; }

.pop { position: absolute; left: 50%; top: 50%; pointer-events: none; text-align: center; white-space: nowrap; text-shadow: 0 2px 12px rgba(0, 0, 0, .6); opacity: 0; }
.pop-main { font-size: 44px; font-weight: 500; color: #fff6e2; }
.pop-sub { font-size: 16px; color: var(--amber); }
@keyframes pop {
  0% { opacity: 0; transform: translate(-50%, -30%) scale(.7); }
  18% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
  100% { opacity: 0; transform: translate(-50%, -140%) scale(1); }
}
.pop.go { animation: pop 1s ease-out both; }

.overlay {
  position: absolute; inset: 0; border-radius: 16px; overflow-y: auto;
  background: rgba(21, 18, 30, .9);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; text-align: center; padding: 16px;
}
.overlay.dim { background: rgba(21, 18, 30, .82); }
.overlay .btn { margin-top: 6px; min-width: 200px; }
.ending { font-size: 26px; font-weight: 800; }

.preview { min-height: 22px; font-size: 14px; text-align: center; color: var(--muted); }
.preview.on { color: var(--ink); }
.preview.off { color: var(--faint); }

.legend { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 10px; font-size: 12px; line-height: 1.35; color: var(--muted); }
.legend > div { display: flex; gap: 8px; align-items: center; }
.legend b { color: var(--ink); }
.chip { flex: none; width: 28px; height: 28px; border-radius: 8px; display: flex; align-items: center; justify-content: center; }
.chip svg { width: 18px; height: 18px; }
.chip.nova { background: #fff1d0; fill: var(--coral); }
.chip.prism { background: #2a2240; fill: var(--ink); }
.chip.ash { background: #4a4458 repeating-linear-gradient(135deg, rgba(255, 255, 255, .07) 0 3px, transparent 3px 9px); }
.spark-chip { position: relative; background: var(--teal); }

.run-boons { font-size: 12px; color: var(--muted); text-align: center; min-height: 16px; }
.run-boons b { color: var(--ink); font-weight: 600; }

.boons { display: flex; flex-direction: column; gap: 8px; width: 100%; }
.boon {
  appearance: none; cursor: pointer; text-align: left; color: var(--ink);
  background: var(--surface); border: 1.5px solid var(--line-strong); border-radius: 12px;
  padding: 10px 12px; display: flex; flex-direction: column; gap: 2px;
  transition: border-color .15s ease, transform .1s ease;
}
.boon:hover, .boon:focus-visible { border-color: var(--amber); outline: none; }
.boon:active { transform: scale(.98); }
.boon-name { font-weight: 700; font-size: 15px; }
.boon-name .num { color: var(--amber); font-size: 12px; margin-left: 6px; }
.boon-desc { font-size: 13px; color: var(--muted); }
.clear-foot { display: flex; justify-content: space-between; align-items: center; width: 100%; gap: 8px; }
.small-btn { min-height: 40px; padding: 0 12px; font-size: 13px; }

/* forge */
.upgrades { display: flex; flex-direction: column; gap: 12px; }
.upgrade { background: var(--surface); border: 1.5px solid var(--line); border-radius: 18px; padding: 14px 14px 14px 16px; display: flex; align-items: center; gap: 12px; }
.upgrade-body { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.upgrade-name { font-weight: 700; font-size: 17px; }
.pips { display: flex; gap: 4px; }
.pips span { width: 18px; height: 6px; border-radius: 3px; background: var(--line-strong); }
.pips span.on { background: var(--amber); }
.upgrade .btn { min-width: 88px; min-height: 48px; font-size: 15px; padding: 0 12px; }

/* feats */
.feats { display: flex; flex-direction: column; gap: 8px; }
.feat { display: flex; align-items: center; gap: 12px; background: var(--surface); border: 1.5px solid var(--line); border-radius: 14px; padding: 12px 14px; }
.feat-mark { flex: none; width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--line-strong); display: flex; align-items: center; justify-content: center; }
.feat-mark svg { width: 16px; height: 16px; fill: none; stroke: var(--on-amber); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.feat.done .feat-mark { background: var(--amber); border-color: var(--amber); }
.feat-body { flex: 1; display: flex; flex-direction: column; gap: 2px; }
.feat-name { font-weight: 700; font-size: 15px; }
.feat.done .feat-name { color: var(--amber); }

/* run over */
.huge { font-size: 64px; font-weight: 500; line-height: 1; }
.badge { margin-top: 10px; display: inline-flex; padding: 6px 12px; border-radius: 999px; background: var(--amber); color: var(--on-amber); font-weight: 700; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.tiles4 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.tile4 { background: var(--surface); border-radius: 14px; padding: 14px; }
.tile4 .num { font-size: 26px; }
.actions { display: flex; flex-direction: column; gap: 10px; }
.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }

.toast {
  position: fixed; left: 50%; bottom: max(28px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: var(--ink); color: var(--on-amber);
  padding: 10px 16px; border-radius: 12px;
  font-size: 14px; font-weight: 600; text-align: center;
  width: max-content; max-width: calc(100vw - 32px);
  pointer-events: none; animation: toast .2s ease-out both;
}
@keyframes toast { from { opacity: 0; transform: translate(-50%, 8px); } to { opacity: 1; transform: translate(-50%, 0); } }

@media (max-height: 760px) {
  .legend { display: none; }
  .playing .big-num { font-size: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .tile.drop, .pop.go, .toast { animation-duration: 1ms; }
}