/* Topic cards */
.topic-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-lg) var(--space-md);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  text-align: center;
  min-height: 120px;
  justify-content: center;
}

.topic-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(67, 97, 238, 0.15);
}

.topic-card:active {
  transform: translateY(0);
}

.topic-card__icon {
  font-size: 2rem;
  line-height: 1;
}

.topic-card__label {
  font-size: var(--font-size-small);
  font-weight: 600;
  color: var(--color-text);
}

/* Question text */
.question-text {
  font-size: var(--font-size-question);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
}

/* Answer buttons */
.answer-btn {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  min-height: 52px;
  font-size: var(--font-size-answer);
  font-weight: 500;
  text-align: center;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
}

.answer-btn:hover:not(.answer-btn--disabled) {
  border-color: var(--color-primary);
  background: rgba(67, 97, 238, 0.04);
}

.answer-btn:active:not(.answer-btn--disabled) {
  transform: scale(0.98);
}

.answer-btn--disabled {
  pointer-events: none;
  cursor: default;
}

.answer-btn--correct {
  border-color: var(--color-correct);
  background: var(--color-correct-bg);
  color: #1a5c2a;
}

.answer-btn--wrong {
  border-color: var(--color-wrong);
  background: var(--color-wrong-bg);
  color: #8b1a30;
}

.answer-btn--dimmed {
  opacity: 0.5;
}

.answer-btn__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* Progress bar */
.progress {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.progress__bar {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 4px;
  overflow: hidden;
}

.progress__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 4px;
  transition: width var(--transition-normal);
}

.progress__text {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-text-light);
  white-space: nowrap;
}

/* Results */
.results__score {
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.results__label {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
}

.results__message {
  font-size: clamp(1.1rem, 3.5vw, 1.4rem);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2xl);
  max-width: 300px;
}

.results__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  width: 100%;
  max-width: 300px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  min-height: 48px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--color-primary);
  color: white;
}

.btn--primary:hover {
  background: var(--color-primary-dark);
}

.btn--outline {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: rgba(67, 97, 238, 0.04);
}

/* Tap to continue hint */
.tap-hint {
  text-align: center;
  font-size: var(--font-size-small);
  color: var(--color-text-light);
  padding-top: var(--space-md);
  animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Feedback animation */
@keyframes popIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); opacity: 1; }
}

.answer-btn__icon {
  animation: popIn 0.3s ease;
}