:root {
  color-scheme: dark;
  --bg: #070a14;
  --panel: #101526;
  --panel-2: #161d33;
  --fg: #e8eef7;
  --muted: #9aa6c4;
  --line: #26304d;
  --accent: #5ad1a0;
  --accent-ink: #06231a;
  --star: #ffd23f;
  --plum: #b892ff;
  --lose: #ff5d73;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 70% -10%, #16203f 0%, transparent 60%),
    var(--bg);
  color: var(--fg);
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.site-head {
  text-align: center;
  padding: 32px 16px 8px;
}
.site-head h1 {
  margin: 0;
  font-size: clamp(40px, 8vw, 64px);
  letter-spacing: -0.03em;
  background: linear-gradient(120deg, var(--accent), var(--star) 55%,
    var(--plum));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline {
  margin: 4px 0 0;
  color: var(--muted);
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
  display: grid;
  gap: 20px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card h2 {
  margin: 0 0 12px;
  font-size: 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.step {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 16px;
  font-weight: 800;
}

.concept {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
}
.pill {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--star);
  background: rgba(255, 210, 63, 0.12);
  border: 1px solid rgba(255, 210, 63, 0.3);
  padding: 4px 10px;
  border-radius: 999px;
}
.concept h2 {
  margin: 10px 0 6px;
}
.concept p {
  margin: 0;
  color: var(--muted);
  max-width: 62ch;
}

.hint {
  color: var(--muted);
  font-size: 14px;
}

/* --- paint --- */

.paint-layout,
.play-layout {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  align-items: flex-start;
}
.paint-canvas {
  width: min(300px, 100%);
  height: auto;
  aspect-ratio: 1;
  background: #f4f7ff;
  border-radius: 12px;
  border: 2px solid var(--line);
  touch-action: none;
  cursor: crosshair;
}
.paint-tools {
  flex: 1 1 240px;
  display: grid;
  gap: 12px;
  align-content: start;
}
.palette {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.swatch {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}
.swatch.active {
  border-color: var(--fg);
  transform: scale(1.08);
}
.toolrow {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.toolrow.save {
  margin-top: 4px;
}
button {
  font: inherit;
}
.tool {
  background: var(--panel-2);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 8px 12px;
  cursor: pointer;
}
.tool:hover {
  border-color: var(--accent);
}
.tool.active {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
  font-weight: 700;
}
.primary {
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 9px;
  padding: 9px 14px;
  font-weight: 700;
  cursor: pointer;
}
.primary:hover {
  filter: brightness(1.06);
}
.primary.big {
  font-size: 18px;
  padding: 12px 22px;
  width: 100%;
}
.brush {
  display: grid;
  gap: 4px;
  font-size: 14px;
  color: var(--muted);
}
.slots {
  display: flex;
  gap: 16px;
  margin-top: 4px;
}
.slots figure {
  margin: 0;
  text-align: center;
  font-size: 12px;
  color: var(--muted);
}
.slots canvas {
  width: 72px;
  height: 72px;
  background: #0c1122;
  border: 1px solid var(--line);
  border-radius: 10px;
}

/* --- sliders / rules --- */

.sliders {
  display: grid;
  gap: 14px;
  margin: 8px 0 16px;
}
.sliders label {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 8px 12px;
}
.sliders input[type="range"] {
  grid-column: 1 / -1;
  accent-color: var(--accent);
}
.sliders output {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--star);
}
.rules-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}
.rules-list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--panel-2);
  border-left: 4px solid var(--line);
}
.rules-list li.win {
  border-left-color: var(--accent);
}
.rules-list li.lose {
  border-left-color: var(--lose);
}
.rules-list code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  color: var(--fg);
  background: #0b1020;
  padding: 2px 8px;
  border-radius: 6px;
  white-space: nowrap;
}
.rules-list span {
  color: var(--muted);
}

/* --- play --- */

.stage {
  position: relative;
  flex: 1 1 360px;
  max-width: 520px;
}
.game-canvas {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #05070f;
  touch-action: none;
  display: block;
}
.readout {
  flex: 1 1 200px;
  display: grid;
  gap: 14px;
  align-content: start;
}
.vars {
  margin: 0;
  display: grid;
  gap: 10px;
}
.vars div {
  display: flex;
  justify-content: space-between;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 12px;
}
.vars dt {
  color: var(--muted);
}
.vars dd {
  margin: 0;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}
.status {
  min-height: 1.5em;
  font-weight: 600;
}

.outcome {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 6px;
  text-align: center;
  padding: 24px;
  border-radius: 12px;
  background: rgba(5, 7, 15, 0.86);
  backdrop-filter: blur(2px);
}
.outcome.hidden {
  display: none;
}
.outcome.is-win {
  box-shadow: inset 0 0 0 3px var(--accent);
}
.outcome.is-lose {
  box-shadow: inset 0 0 0 3px var(--lose);
}
.outcome-msg {
  font-size: 24px;
  font-weight: 800;
  margin: 0;
}
.edge-label {
  margin: 12px 0 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--star);
}
.edge-prompt {
  margin: 0;
  max-width: 34ch;
  color: var(--fg);
}

.site-foot {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 24px 16px 40px;
}