:root {
  --bg-1: #0f2e2c;
  --bg-2: #153d46;
  --panel: #f3edd6;
  --ink: #1f1e18;
  --accent: #ff8a3d;
  --accent-2: #4ecdc4;
  --danger: #d1495b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Noto Sans JP", sans-serif;
  color: var(--panel);
  min-height: 100vh;
  background: radial-gradient(circle at 20% 20%, #204d45, transparent 45%),
    radial-gradient(circle at 80% 15%, #2d5f55, transparent 35%),
    linear-gradient(145deg, var(--bg-1), var(--bg-2));
}

.app {
  width: min(1100px, 95vw);
  margin: 1.4rem auto 2rem;
}

header h1 {
  margin: 0;
  letter-spacing: 0.04em;
}

header p {
  margin: 0.4rem 0 1rem;
  opacity: 0.9;
}

.game-panel {
  border: 3px solid rgba(243, 237, 214, 0.25);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 18px 45px rgba(8, 15, 15, 0.45);
}

#gameRoot canvas {
  width: 100%;
  height: auto;
  display: block;
  background: linear-gradient(180deg, #5a8154 0%, #3f6643 70%);
}

.controls {
  margin-top: 1rem;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 0.9rem;
}

.howto p {
  margin: 0.2rem 0;
  font-size: 0.95rem;
}

.mobile-controls {
  margin-top: 0.8rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.dpad {
  display: grid;
  grid-template-columns: repeat(3, 52px);
  grid-template-rows: repeat(3, 44px);
  gap: 0.35rem;
}

.dpad button:nth-child(1) {
  grid-column: 2;
  grid-row: 1;
}

.dpad button:nth-child(2) {
  grid-column: 1;
  grid-row: 2;
}

.dpad button:nth-child(3) {
  grid-column: 2;
  grid-row: 3;
}

.dpad button:nth-child(4) {
  grid-column: 3;
  grid-row: 2;
}

.actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 10px;
  color: #111;
  background: #f4f2e9;
  font-weight: 700;
  cursor: pointer;
  min-width: 52px;
  min-height: 44px;
}

button:active {
  transform: translateY(1px) scale(0.98);
}

.spell {
  background: var(--accent);
}

.rescue {
  background: var(--accent-2);
}

.restart {
  background: #e4e0ca;
}

@media (max-width: 680px) {
  .app {
    width: 96vw;
    margin-top: 0.9rem;
  }

  .howto p {
    font-size: 0.88rem;
  }
}