/* ── Screens ─────────────────────────────────────────── */
.hidden {
  display: none !important;
}

/* ── Start Screen ────────────────────────────────────── */
.instructions {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.7;
}

.color-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 2rem;
}

.preview-arrow {
  font-size: 1rem;
  color: var(--color-text-secondary);
  font-style: italic;
}

#start-btn {
  font-size: 1.3rem;
  padding: 0.8rem 3rem;
}

/* ── Countdown ───────────────────────────────────────── */
#countdown-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

#countdown-screen.hidden {
  display: none !important;
}

.countdown-number {
  font-size: 6rem;
  font-weight: 800;
  color: var(--color-accent);
  animation: countPulse 0.6s ease;
}

@keyframes countPulse {
  0%   { transform: scale(1.4); opacity: 0.3; }
  100% { transform: scale(1); opacity: 1; }
}

/* ── Timer Bar ───────────────────────────────────────── */
.timer-bar {
  width: 100%;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 1rem;
}

.timer-fill {
  height: 100%;
  width: 100%;
  background: var(--color-accent);
  border-radius: 4px;
  transition: width 1s linear;
}

.timer-fill.warning {
  background: #f59e0b;
}

.timer-fill.danger {
  background: #ef4444;
}

/* ── Stats Row ───────────────────────────────────────── */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.5rem;
}

.stat-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 700;
}

/* ── Color Word Display ──────────────────────────────── */
.color-word {
  font-size: 4rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  min-height: 5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s;
  user-select: none;
}

.color-word.correct-flash {
  animation: correctPop 0.3s ease;
}

.color-word.wrong-shake {
  animation: wrongShake 0.4s ease;
}

@keyframes correctPop {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.1); }
  100% { transform: scale(1); }
}

@keyframes wrongShake {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-6px); }
  80%      { transform: translateX(6px); }
}

/* ── Input ───────────────────────────────────────────── */
.color-input {
  font-size: 1.4rem;
  text-align: center;
  max-width: 320px;
  margin: 0 auto;
  display: block;
  padding: 0.7rem 1rem;
  letter-spacing: 0.02em;
}

.color-input.flash-correct {
  border-color: #22c55e !important;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.25);
}

.color-input.flash-wrong {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.25);
}

/* ── Feedback Text ───────────────────────────────────── */
.feedback {
  height: 1.5rem;
  margin-top: 0.75rem;
  font-size: 0.9rem;
  font-weight: 600;
  transition: opacity 0.2s;
}

.feedback.correct-text {
  color: #22c55e;
}

.feedback.wrong-text {
  color: #ef4444;
}

/* ── Game Over Screen ────────────────────────────────── */
.gameover-title {
  font-size: 1.8rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.final-score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 1.5rem;
}

.final-score-value {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--color-accent);
}

.final-score-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

.gameover-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.gameover-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.correct-color {
  color: #22c55e;
}

.wrong-color {
  color: #ef4444;
}

#play-again-btn {
  font-size: 1.1rem;
  padding: 0.7rem 2.5rem;
}

/* ── Hint Panel ──────────────────────────────────────── */
.hint-toggle {
  position: fixed;
  bottom: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0;
  opacity: 0.5;
  z-index: 20;
}

.hint-toggle:hover {
  opacity: 1;
}

.hint-panel {
  position: fixed;
  bottom: 56px;
  right: 16px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  max-width: 180px;
  z-index: 20;
  font-size: 0.7rem;
  font-weight: 600;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 480px) {
  .color-word {
    font-size: 2.8rem;
    min-height: 3.5rem;
  }

  .color-input {
    font-size: 1.2rem;
    max-width: 260px;
  }

  .stats-row {
    gap: 1.2rem;
  }

  .final-score-value {
    font-size: 2.5rem;
  }
}