/* ===== Number Rush (ナンバーラッシュ) ===== */
:root {
  --game-accent: #F29CB2;
}

body { overflow-x: hidden; }

.top-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: .5rem 1rem; background: var(--surface);
  border-bottom: 3px solid var(--color-coral);
  box-shadow: var(--shadow-sm);
}
.top-bar .title { font-size: .85rem; font-weight: 600; color: var(--text-muted); }
.top-bar .title a { color: var(--text-muted); }
.top-bar .title span { color: var(--text); font-weight: 900; }
.top-bar-actions { display: flex; gap: .4rem; }
.icon-btn { background: var(--surface2); border: 2px solid var(--surface2); color: var(--text-muted); width: 30px; height: 30px; border-radius: 50%; font-size: .8rem; cursor: pointer; display: flex; align-items: center; justify-content: center; font-family: inherit; font-weight: 700; }

.game-page { max-width: 600px; margin: 0 auto; padding: .5rem .75rem; display: flex; flex-direction: column; gap: .6rem; min-height: calc(100vh - 48px); }

.setup-section { background: var(--surface); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); }
.setup-section h4 { font-size: .75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .5rem; font-weight: 700; }
.player-bar { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }
.player-bar input { padding: .35rem .6rem; font-size: .85rem; border-radius: 10px; width: 100px; min-width: 0; }
.player-bar .btn { padding: .35rem .6rem; font-size: .8rem; border-radius: 10px; }
.player-tags { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .4rem; }
.player-tags .player-tag { font-size: .75rem; padding: .15rem .5rem; }
.start-btn { margin-top: .8rem; width: 100%; padding: .7rem; font-size: 1.1rem; border-radius: 999px; background: var(--color-coral); color: #5A3A3A; box-shadow: 0 4px 14px rgba(242,156,178,.4); border: none; font-family: inherit; font-weight: 700; cursor: pointer; }
.start-btn:active { transform: scale(.97); }

.phase-section { background: var(--surface); border-radius: var(--radius); padding: 1rem; box-shadow: var(--shadow); text-align: center; }

/* --- Game Info Bar --- */
.game-info-bar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: .6rem; padding: 0 .2rem;
}
.next-number {
  font-size: 1.2rem; font-weight: 900; color: #5A3A3A;
  background: var(--surface2); padding: .3rem .8rem; border-radius: 999px;
}
.next-number span { font-size: 1.4rem; }
.timer-display {
  font-size: 1.2rem; font-weight: 900; color: #EF4444;
  font-variant-numeric: tabular-nums;
}

/* --- Number Grid --- */
.number-grid {
  display: grid; gap: 4px;
  margin: 0 auto; width: 100%; max-width: 400px;
  aspect-ratio: 1 / 1;
  user-select: none; -webkit-user-select: none;
}
.number-grid.grid-4 { grid-template-columns: repeat(4, 1fr); }
.number-grid.grid-5 { grid-template-columns: repeat(5, 1fr); }
.number-grid.grid-6 { grid-template-columns: repeat(6, 1fr); }

.grid-cell {
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--game-accent), #e87090);
  color: #5A3A3A; font-weight: 900; border-radius: 10px;
  cursor: pointer; transition: transform .1s, opacity .15s, background .15s;
  aspect-ratio: 1 / 1; font-size: 1.4rem;
  border: none; font-family: inherit;
  box-shadow: 0 2px 6px rgba(242,156,178,.3);
}
.grid-cell:active { transform: scale(.93); }

.grid-cell.tapped {
  background: var(--surface2); color: var(--text-muted);
  opacity: .35; cursor: default; box-shadow: none;
}
.grid-cell.tapped::after { content: '✓'; position: absolute; }
.grid-cell.tapped { position: relative; font-size: 0; }
.grid-cell.tapped::after { font-size: 1rem; }

.grid-cell.error-flash {
  background: #EF4444 !important; animation: cellShake .4s ease;
}

@keyframes cellShake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(3px); }
}

/* Result */
.result-section { text-align: center; }
.result-icon { font-size: 3rem; margin-bottom: .3rem; }
.result-title { font-size: 1.3rem; font-weight: 900; margin-bottom: .3rem; }
.result-details { font-size: .85rem; color: var(--text-muted); line-height: 1.8; }
.result-details strong { color: var(--text); }
.next-btn { margin-top: .6rem; padding: .6rem 2rem; font-size: 1rem; border-radius: 999px; }

.score-section { background: var(--surface); border-radius: var(--radius); padding: .5rem .8rem; box-shadow: var(--shadow); }
.score-section h4 { font-size: .7rem; color: var(--text-muted); margin-bottom: .3rem; text-transform: uppercase; font-weight: 700; }
.score-list { display: flex; flex-wrap: wrap; gap: .3rem .8rem; }
.score-item { font-size: .8rem; display: flex; gap: .3rem; align-items: center; }
.score-item .name { font-weight: 700; }
.score-item .pts { color: #5A3A3A; font-weight: 700; }

.log-section { background: var(--surface); border-radius: var(--radius); padding: .5rem .8rem; box-shadow: var(--shadow); }
.log-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: .3rem; }
.log-header h4 { font-size: .7rem; color: var(--text-muted); text-transform: uppercase; font-weight: 700; }
.clear-log-btn { background: var(--surface2); border: 2px solid var(--surface2); color: var(--text-muted); border-radius: 8px; padding: .15rem .5rem; font-size: .65rem; cursor: pointer; font-family: inherit; font-weight: 600; }
.log-entry { display: flex; justify-content: space-between; padding: .25rem 0; border-bottom: 1px solid var(--surface2); font-size: .75rem; }
.log-entry:last-child { border-bottom: none; }

.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(90,58,58,.3); backdrop-filter: blur(4px); z-index: 100; align-items: center; justify-content: center; padding: 1rem; }
.modal-overlay.show { display: flex; }
.modal-box { background: var(--surface); border-radius: var(--radius); padding: 1.5rem; max-width: 400px; width: 100%; max-height: 80vh; overflow-y: auto; position: relative; box-shadow: var(--shadow-lg); }
.modal-box h3 { margin-bottom: .8rem; font-weight: 900; }
.modal-box ul { margin: 0 0 0 1.2rem; line-height: 1.8; font-size: .85rem; color: var(--text-muted); }
.modal-close { position: absolute; top: .5rem; right: .8rem; background: none; border: none; color: var(--text-muted); font-size: 1.4rem; cursor: pointer; }

/* Countdown overlay */
.countdown-overlay {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(45,32,64,.7); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  font-size: 5rem; font-weight: 900; color: #fff;
  text-shadow: 0 4px 20px rgba(0,0,0,.3);
}

@keyframes countPulse {
  0% { transform: scale(.5); opacity: 0; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}
.countdown-overlay span { animation: countPulse .4s ease-out; }

/* Grid font size adjustments */
.number-grid.grid-5 .grid-cell { font-size: 1.2rem; border-radius: 8px; }
.number-grid.grid-6 .grid-cell { font-size: 1rem; border-radius: 7px; }

@media (max-width: 480px) {
  .number-grid.grid-4 .grid-cell { font-size: 1.2rem; }
  .number-grid.grid-5 .grid-cell { font-size: 1rem; }
  .number-grid.grid-6 .grid-cell { font-size: .85rem; }
}