/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--border-radius);
  font-size: var(--font-body);
  font-weight: 700;
  min-height: var(--tap-target);
  min-width: var(--tap-target);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn:active {
  transform: scale(0.95);
}

.btn-primary {
  background: var(--team-primary);
  color: var(--text-light);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  box-shadow: var(--shadow-sm);
}

.btn-secondary {
  background: var(--team-secondary);
  color: var(--text-dark);
  box-shadow: var(--shadow-md);
}

.btn-success {
  background: var(--correct-green);
  color: var(--text-light);
  box-shadow: var(--shadow-md);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-xxl);
  font-size: var(--font-lg);
  border-radius: var(--border-radius-lg);
}

.btn-icon {
  width: var(--tap-target);
  height: var(--tap-target);
  padding: 0;
  border-radius: 50%;
}

.btn-back {
  background: rgba(255,255,255,0.15);
  color: var(--text-light);
  font-size: var(--font-lg);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  padding: 0;
}

/* Cards */
.card {
  background: var(--bg-card);
  color: var(--text-dark);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.card-elevated {
  box-shadow: var(--shadow-md);
}

/* Progress bar */
.progress-bar {
  height: 12px;
  background: rgba(255,255,255,0.2);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 6px;
  transition: width var(--transition-slow);
  background: linear-gradient(90deg, var(--team-primary), var(--team-secondary));
}

/* Stars */
.stars {
  display: flex;
  gap: 4px;
}

.star {
  width: 32px;
  height: 32px;
  color: #444;
  transition: color var(--transition-normal), transform var(--transition-normal);
}

.star.earned {
  color: var(--star-yellow);
  transform: scale(1.1);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: 20px;
  font-size: var(--font-xs);
  font-weight: 700;
  text-transform: uppercase;
}

.badge-rank {
  background: var(--xp-gold);
  color: var(--text-dark);
}

.badge-locked {
  background: rgba(255,255,255,0.1);
  color: var(--text-muted);
}

/* Answer choices */
.choice-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.choice-btn {
  background: var(--bg-card);
  color: var(--text-dark);
  border: 3px solid transparent;
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-body);
  font-weight: 600;
  text-align: left;
  min-height: 60px;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  transition: border-color var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

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

.choice-btn.selected {
  border-color: var(--team-primary);
  background: rgba(0,48,135,0.05);
}

.choice-btn.correct {
  border-color: var(--correct-green);
  background: var(--correct-light);
}

.choice-btn.incorrect {
  border-color: var(--incorrect-red);
  background: var(--incorrect-light);
}

.choice-letter {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--team-primary);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

/* Scoreboard inline */
.score-display {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  background: rgba(0,0,0,0.3);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius);
  color: var(--text-light);
  font-weight: 700;
}

.score-team {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-lg);
}

.score-number {
  font-size: var(--font-xl);
  font-variant-numeric: tabular-nums;
  min-width: 40px;
  text-align: center;
}

.score-vs {
  font-size: var(--font-sm);
  opacity: 0.6;
}

/* Input field */
.text-input {
  width: 100%;
  padding: var(--spacing-md);
  border: 3px solid rgba(0,0,0,0.1);
  border-radius: var(--border-radius);
  font-size: var(--font-body);
  background: var(--bg-card);
  color: var(--text-dark);
  transition: border-color var(--transition-fast);
}

.text-input:focus {
  border-color: var(--team-primary);
}

/* Drag-and-drop item */
.drag-item {
  background: var(--bg-card);
  color: var(--text-dark);
  border: 2px solid rgba(0,0,0,0.1);
  border-radius: var(--border-radius);
  padding: var(--spacing-md) var(--spacing-lg);
  font-size: var(--font-body);
  font-weight: 600;
  cursor: grab;
  touch-action: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.drag-item.dragging {
  transform: scale(1.05);
  box-shadow: var(--shadow-lg);
  z-index: 50;
  opacity: 0.9;
}

.drop-zone {
  border: 3px dashed rgba(0,0,0,0.2);
  border-radius: var(--border-radius);
  padding: var(--spacing-lg);
  min-height: 80px;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-content: flex-start;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.drop-zone.drag-over {
  border-color: var(--team-primary);
  background: rgba(0,48,135,0.05);
}

/* Letter puck for spelling */
.letter-puck {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--text-dark);
  color: var(--text-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-lg);
  font-weight: 700;
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.letter-puck:active {
  transform: scale(0.9);
}

.letter-puck.used {
  opacity: 0.3;
  pointer-events: none;
}

/* Spelling slots */
.spelling-slots {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
}

.spelling-slot {
  width: 52px;
  height: 52px;
  border: 3px solid rgba(255,255,255,0.3);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-lg);
  font-weight: 700;
  color: var(--text-light);
  background: rgba(255,255,255,0.1);
}

.spelling-slot.filled {
  background: var(--team-primary);
  border-color: var(--team-secondary);
}