:root {
  --bg: #14121f;
  --panel: #1f1c30;
  --panel-2: #2a2640;
  --ink: #f2eefc;
  --muted: #a39fbd;
  --accent: #8b7bff;
  --start: #3ddc97;
  --goal: #ffc94d;
  --danger: #ff5d73;
  --radius: 14px;
  font-family: "Nunito", system-ui, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 20% 0%, #2a2350 0%, var(--bg) 55%);
  color: var(--ink);
}

a { color: var(--accent); }

.wrap { max-width: 900px; margin: 0 auto; padding: 24px 16px 48px; }

header.site {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}
header.site h1 { margin: 0; font-size: 1.8rem; letter-spacing: -0.02em; }
header.site a { text-decoration: none; font-weight: 700; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
.toolbar .spacer { flex: 1; }
.group { display: flex; gap: 4px; background: var(--panel); padding: 4px; border-radius: 10px; }

button, select {
  font: inherit;
  font-weight: 700;
  color: var(--ink);
  background: var(--panel-2);
  border: 0;
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
}
button:hover { filter: brightness(1.2); }
button.active { background: var(--accent); color: #fff; }
button.primary { background: var(--accent); color: #fff; }
button:disabled { opacity: 0.4; cursor: default; }

.board-wrap { position: relative; }
canvas#board {
  display: block;
  width: 100%;
  aspect-ratio: 800 / 500;
  background: #0d0b17;
  border-radius: var(--radius);
  border: 2px solid var(--panel-2);
  touch-action: none;
  cursor: crosshair;
}
canvas#board.play { cursor: pointer; }

.hint { color: var(--muted); margin: 10px 2px 0; line-height: 1.5; }
.hud { display: flex; gap: 18px; font-weight: 800; font-size: 1.1rem; }
.hud .bad { color: var(--danger); }

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(13, 11, 23, 0.6);
  border-radius: var(--radius);
}
.overlay[hidden] { display: none; }
.overlay .box {
  background: var(--panel);
  border: 1px solid var(--panel-2);
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  max-width: 90%;
}
.overlay h2 { margin: 0 0 8px; }
.overlay p { margin: 0 0 14px; color: var(--muted); }
.overlay .row { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }