:root {
  --bg0: #1a2a24;
  --bg1: #243d34;
  --ink: #f4efe4;
  --muted: #b7c7bc;
  --accent: #ffb347;
  --accent2: #ff6b6b;
  --panel: rgba(18, 32, 28, 0.82);
  --line: rgba(244, 239, 228, 0.16);
  --ok: #7dffa6;
  --font-display: "Mochiy Pop One", "Zen Maru Gothic", sans-serif;
  --font-body: "Zen Maru Gothic", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 700px at 10% -10%, #3d6a55 0%, transparent 55%),
    radial-gradient(900px 600px at 100% 0%, #5a3d2e 0%, transparent 50%),
    linear-gradient(160deg, var(--bg0), var(--bg1));
  color: var(--ink);
  font-family: var(--font-body);
}

body {
  overflow-x: hidden;
}

#app {
  max-width: 1280px;
  margin: 0 auto;
  padding: 16px 16px 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 14px;
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--accent), #ff7a59);
  color: #2a1a10;
  font-family: var(--font-display);
  font-size: 18px;
  box-shadow: 0 10px 24px rgba(0,0,0,.28);
}

.brand h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  letter-spacing: 0.02em;
}

.brand p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hud {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.hud-chip {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 179, 71, 0.18);
  border: 1px solid rgba(255, 179, 71, 0.45);
  font-weight: 700;
  font-size: 0.85rem;
}

.hud-chip.subtle {
  background: rgba(255,255,255,0.06);
  border-color: var(--line);
  color: var(--muted);
  font-weight: 500;
}

.stage-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 14px;
  align-items: start;
}

#game-container {
  width: 100%;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #1a3a30;
  box-shadow: 0 18px 50px rgba(0,0,0,.35);
  min-height: 420px;
  line-height: 0;
}

#game-container canvas {
  display: block !important;
  width: 100% !important;
  height: auto !important;
  max-width: 100%;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  backdrop-filter: blur(10px);
}

.panel-block + .panel-block {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.panel h2 {
  margin: 0 0 8px;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.panel ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  font-size: 0.9rem;
}

.swatch {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.25);
}

.actions {
  display: grid;
  gap: 8px;
}

.btn {
  appearance: none;
  border: none;
  cursor: pointer;
  border-radius: 12px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform .12s ease, filter .12s ease, background .12s ease;
}

.btn:hover { transform: translateY(-1px); filter: brightness(1.05); }
.btn:active { transform: translateY(1px); }

.btn.primary {
  background: linear-gradient(135deg, var(--accent), #ff7e4f);
  color: #2a160c;
  box-shadow: 0 8px 20px rgba(255, 126, 79, 0.28);
}

.btn.ghost {
  background: rgba(255,255,255,0.06);
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn.share {
  background: #111;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn.share#btnShareX {
  background: #0f0f0f;
}

.hidden { display: none !important; }

.score-block {
  text-align: center;
}

.score-label {
  font-family: var(--font-display);
  letter-spacing: 0.2em;
  color: var(--accent);
  font-size: 0.8rem;
}

.score-value {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: 1.1;
  margin: 4px 0 8px;
  background: linear-gradient(180deg, #fff6df, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 30px rgba(255, 179, 71, 0.25);
}

.score-detail {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
  text-align: left;
}

.share-row {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.fx-overlay {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0;
  transition: opacity .2s ease;
  background:
    radial-gradient(circle at 50% 40%, rgba(255, 215, 120, 0.35), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(255, 107, 107, 0.2), transparent 35%),
    radial-gradient(circle at 80% 70%, rgba(125, 255, 166, 0.18), transparent 35%);
  z-index: 40;
}

.fx-overlay.on {
  opacity: 1;
  animation: pulseFlash 1.1s ease;
}

@keyframes pulseFlash {
  0% { opacity: 0; }
  20% { opacity: 1; }
  100% { opacity: 0; }
}

.foot {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.4;
}

@media (max-width: 960px) {
  .stage-wrap {
    grid-template-columns: 1fr;
  }
  .panel {
    order: 2;
  }
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}