:root {
  --bg: #1a1712;
  --panel: #241f18;
  --ink: #e8dfd0;
  --muted: #9a8f7d;
  --accent: #c45c26;
  --line: #3d3428;
  --ok: #6b8f71;
  --danger: #b33a2b;
  --roll: #c9a227;
  --gate: #5a6d7a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at 20% 0%, #2a2218 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, #1e1810 0%, transparent 45%),
    var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", "Noto Sans TC", "PingFang TC", sans-serif;
}

.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.25rem 1rem 2rem;
}

.top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1rem;
  align-items: end;
}

.eyebrow {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
}

h1 {
  margin: 0.2rem 0 0;
  font-size: 1.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

h1 span {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.9rem;
  margin-left: 0.35rem;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 22rem;
}

.stage {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 0.85rem;
  align-items: stretch;
}

@media (max-width: 900px) {
  .stage { grid-template-columns: 1fr; }
}

#game {
  width: 100%;
  height: auto;
  display: block;
  background: #12100c;
  border: 1px solid var(--line);
  image-rendering: pixelated;
}

.hud {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 0.9rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.hud-block h2 {
  margin: 0 0 0.25rem;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-weight: 600;
}

.hud-block p { margin: 0.15rem 0; }

.muted { color: var(--muted); font-size: 0.85rem; }

.timer {
  font-size: 1.75rem;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 700;
}

.actions {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

button {
  appearance: none;
  border: 1px solid var(--line);
  background: #2e271e;
  color: var(--ink);
  padding: 0.55rem 0.7rem;
  cursor: pointer;
  font: inherit;
}

button:hover { border-color: var(--accent); }

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.legend {
  list-style: none;
  margin: auto 0 0;
  padding: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.legend li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0.25rem 0;
}

.swatch {
  width: 0.7rem;
  height: 0.7rem;
  display: inline-block;
  border-radius: 1px;
}

.swatch.you { background: #e8dfd0; }
.swatch.roll { background: var(--roll); }
.swatch.gate { background: var(--gate); }
.swatch.npc { background: #7a8fa3; }
.swatch.enemy { background: #8b3a2a; }
.swatch.nest { background: #c9a227; outline: 1px dashed #e8dfd0; }
.swatch.exit { background: #6b8f71; outline: 1px dashed #a3c4a8; }
.swatch.item { background: #d4a017; box-shadow: 0 0 0 2px #7a5a10; }
.swatch.escape { background: var(--ok); outline: 1px dashed var(--ok); outline-offset: 1px; }

kbd {
  display: inline-block;
  padding: 0.05rem 0.35rem;
  border: 1px solid var(--line);
  background: #2e271e;
  font-size: 0.8em;
}

.banner {
  margin-top: 0.85rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  background: #2a2218;
  text-align: center;
  font-size: 1.05rem;
}

.banner.win { border-color: var(--ok); color: #b8d4bc; }
.banner.lose { border-color: var(--danger); color: #e0a39a; }
.banner.warn { border-color: var(--roll); }