.durationgame-wrapper {
  max-width: 940px;
  margin: 0 auto 32px;
  padding: 16px;
  background: #f8f9ff;
  border-radius: 16px;
  box-shadow: 0 14px 34px rgba(44, 63, 116, 0.14);
}

.durationgame-hud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 24px;
  margin-bottom: 18px;
}

.durationgame-stat {
  display: flex;
  gap: 6px;
  align-items: baseline;
  font-size: 0.95rem;
  color: #1f2f4f;
}

.durationgame-stat strong {
  font-size: 1.2rem;
}

.durationgame-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 22px;
}

#durationStart {
  background: #6366f1;
  box-shadow: 0 10px 22px rgba(99, 102, 241, 0.2);
}

#durationStart:hover {
  background: #4f46e5;
  box-shadow: 0 12px 28px rgba(79, 70, 229, 0.24);
  transform: translateY(-2px);
}

#durationStart:focus-visible {
  outline: 3px solid rgba(99, 102, 241, 0.32);
  outline-offset: 3px;
}

#durationReset {
  background: #475569;
  box-shadow: 0 8px 20px rgba(71, 85, 105, 0.22);
}

#durationReset:hover {
  background: #334155;
  box-shadow: 0 10px 24px rgba(51, 65, 85, 0.26);
  transform: translateY(-2px);
}

#durationReset:focus-visible {
  outline: 3px solid rgba(51, 65, 85, 0.3);
  outline-offset: 3px;
}

#durationListen {
  background: #0ea5e9;
  box-shadow: 0 10px 22px rgba(14, 165, 233, 0.24);
}

#durationListen:hover {
  background: #0284c7;
  box-shadow: 0 12px 28px rgba(2, 132, 199, 0.28);
  transform: translateY(-2px);
}

#durationListen:focus-visible {
  outline: 3px solid rgba(14, 165, 233, 0.28);
  outline-offset: 3px;
}

.durationgame-prompt {
  max-width: 520px;
  margin: 0 auto 16px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(63, 81, 181, 0.12);
  color: #23316a;
  font-weight: 600;
  text-align: center;
  min-height: 48px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.durationgame-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 18px;
  margin-bottom: 20px;
}

.durationgame-view {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin: 0 auto 18px;
  flex-wrap: wrap;
}

.durationview-btn {
  border: none;
  border-radius: 999px;
  padding: 8px 18px;
  background: rgba(79, 70, 229, 0.12);
  color: #1f2f4f;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.durationview-btn:hover {
  background: rgba(79, 70, 229, 0.18);
  transform: translateY(-1px);
}

.durationview-btn.is-active {
  background: #4f46e5;
  color: #fff;
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.24);
}

.duration-card {
  border-radius: 18px;
  border: 3px solid transparent;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.96), rgba(224, 230, 255, 0.94));
  padding: 18px 16px;
  min-height: 210px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.duration-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 28px rgba(63, 81, 181, 0.24);
}

.duration-card:focus-visible {
  outline: none;
  border-color: #4f46e5;
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.2);
}

.duration-card.is-disabled {
  cursor: default;
  opacity: 0.75;
  pointer-events: none;
  transform: none;
  box-shadow: none;
}

.duration-card__sequence {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  min-height: 84px;
}

.duration-card__sequence--lines {
  flex-wrap: nowrap;
  gap: 18px;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 24px;
}

.duration-card__token {
  font-size: 2.5rem;
  line-height: 1;
  text-shadow: 0 6px 14px rgba(63, 81, 181, 0.15);
}

.duration-card[data-state="correct"] {
  border-color: #22c55e;
  box-shadow: 0 14px 32px rgba(34, 197, 94, 0.32);
}

.duration-card[data-state="wrong"] {
  border-color: #ef4444;
  box-shadow: 0 14px 32px rgba(239, 68, 68, 0.26);
}

.durationgame-feedback {
  min-height: 32px;
  text-align: center;
  font-size: 1rem;
  color: #243457;
  font-weight: 500;
}

@media (max-width: 640px) {
  .durationgame-wrapper {
    padding: 14px;
  }
  .duration-card {
    min-height: 196px;
  }
  .duration-card__token {
    font-size: 2.2rem;
  }
}

.duration-line {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 14px;
  min-width: 24px;
}

.duration-line__bar {
  display: block;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, #312e81, #6366f1);
  box-shadow: 0 6px 16px rgba(79, 70, 229, 0.2);
}

.duration-line__bar--short {
  width: 22px;
}

.duration-line__bar--medium {
  width: 40px;
}

.duration-line__bar--long {
  width: 72px;
}

.duration-line--blank {
  width: 80px;
  height: 12px;
  min-width: 44px;
}

.duration-line--blank::after {
  content: '';
  display: block;
  width: 100%;
  height: 4px;
}