* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: linear-gradient(160deg, #fff9e6 0%, #ffe0b2 100%);
  min-height: 100vh;
  font-family: 'Hiragino Maru Gothic Pro', 'Rounded Mplus 1c', sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

/* ---- Screens ---- */
.screen { display: none; width: 100%; flex-direction: column; align-items: center; }
.screen.active { display: flex; }

/* ---- Title ---- */
#screen-title {
  justify-content: center;
  min-height: 100vh;
  padding: 24px 20px;
  gap: 16px;
}
.logo {
  font-size: 2rem;
  font-weight: 900;
  color: #e65100;
  text-shadow: 0 3px 0 rgba(0,0,0,0.12);
}
.title-scores {
  background: #fff;
  border-radius: 12px;
  padding: 10px 28px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.title-scores .label { font-size: 0.8rem; color: #888; display: block; }
.title-scores span:last-child { font-size: 1.5rem; font-weight: 800; color: #e65100; }
.title-rule { text-align: center; color: #555; font-size: 0.95rem; line-height: 1.6; }
.fruit-chain {
  font-size: 0.9rem;
  color: #888;
  letter-spacing: 2px;
  margin-top: 8px;
}

/* ---- Game screen ---- */
#screen-game {
  flex-direction: column;
  height: 100vh;
  padding: 8px;
  gap: 8px;
}

.game-header {
  width: 100%;
  max-width: 400px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  background: rgba(255,255,255,0.8);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.score-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}
.label { font-size: 0.7rem; color: #aaa; font-weight: 600; }
.score-group span:last-child { font-size: 1.3rem; font-weight: 800; color: #333; }
.next-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 48px;
}
.next-emoji { font-size: 1.6rem; line-height: 1; }

#field-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  width: 100%;
}

#canvas {
  display: block;
  border-radius: 12px 12px 0 0;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  cursor: crosshair;
  touch-action: none;
}

/* ---- Overlay ---- */
.overlay {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0,0,0,0.5);
  z-index: 100;
}
.overlay.hidden { display: none; }
.overlay-inner {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  width: 260px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.over-emoji { font-size: 2.8rem; margin-bottom: 8px; }
.over-title { font-size: 1.4rem; font-weight: 800; color: #e65100; margin-bottom: 12px; }
.over-score, .over-best { font-size: 1rem; color: #555; margin-bottom: 4px; }
.over-best { margin-bottom: 20px; }

/* ---- Buttons ---- */
.btn-primary, .btn-secondary {
  display: block;
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 14px;
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
  margin-bottom: 12px;
  transition: transform 0.08s;
}
.btn-primary {
  background: linear-gradient(135deg, #ff8f00, #e65100);
  color: #fff;
  box-shadow: 0 4px 0 #b34700;
}
.btn-primary:active { transform: translateY(3px); box-shadow: 0 1px 0 #b34700; }
.btn-secondary {
  background: #f0f0f0;
  color: #555;
  box-shadow: 0 4px 0 #bbb;
  margin-bottom: 0;
}
.btn-secondary:active { transform: translateY(3px); box-shadow: 0 1px 0 #bbb; }