/* ==========================================
   通用组件：卡片、弹窗、按钮、稀有度徽章
   ========================================== */

/* ---- 按钮 ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-base);
  font-weight: 600;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
  opacity: 0.9;
}

.btn-primary {
  background: linear-gradient(135deg, #FF6B9D, #FF8FAB);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(255, 107, 157, 0.4);
}

.btn-secondary {
  background: rgba(255,255,255,0.9);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

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

.btn-danger {
  background: linear-gradient(135deg, #FF5252, #F44336);
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(255, 82, 82, 0.4);
}

.btn-ghost {
  background: rgba(255,255,255,0.15);
  color: #FFFFFF;
  backdrop-filter: blur(8px);
}

.btn-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius-full);
  padding: 0;
  font-size: 20px;
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-md);
}

.btn-full {
  width: 100%;
}

/* ---- 卡片 ---- */
.card {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  padding: var(--space-md);
  box-shadow: var(--shadow-md);
}

.card-glass {
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--border-radius-lg);
}

/* ---- 稀有度徽章 ---- */
.rarity-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: var(--border-radius-full);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.rarity-N {
  background: linear-gradient(135deg, #9E9E9E, #757575);
}

.rarity-SR {
  background: linear-gradient(135deg, #CE93D8, #7B1FA2);
}

.rarity-SSR {
  background: linear-gradient(135deg, #FFD700, #FFA000);
  box-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
  animation: ssrGlow 2s ease-in-out infinite alternate;
}

.rarity-Legend {
  background: linear-gradient(135deg, #FF6B9D, #4A90E2, #50E3C2, #FFD700);
  background-size: 200% 200%;
  animation: legendRainbow 3s linear infinite;
  box-shadow: 0 0 15px rgba(255, 107, 157, 0.6);
}

/* ---- 星级显示 ---- */
.star-rating {
  display: inline-flex;
  gap: 2px;
  font-size: 14px;
}

.star { color: #FFD700; }
.star-empty { color: #DDD; }

/* ---- 弹窗 ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-sheet {
  background: #FFFFFF;
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-lg);
  transform: translateY(100%);
  transition: transform var(--transition);
}

.modal-overlay.active .modal-sheet {
  transform: translateY(0);
}

.modal-handle {
  width: 40px;
  height: 4px;
  background: #DDD;
  border-radius: 2px;
  margin: 0 auto var(--space-md);
}

.modal-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
  text-align: center;
}

/* ---- 输入框 ---- */
.input-group {
  margin-bottom: var(--space-md);
}

.input-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.input-field {
  width: 100%;
  padding: 12px 16px;
  background: #F5F5F5;
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.input-field:focus {
  border-color: var(--primary);
  background: #FFF;
  outline: none;
}

.input-field::placeholder {
  color: var(--text-muted);
}

/* ---- emoji选择器 ---- */
.emoji-picker {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.emoji-option {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border-radius: var(--border-radius);
  background: #F5F5F5;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
}

.emoji-option:active,
.emoji-option.selected {
  background: var(--primary);
  border-color: var(--primary-dark);
  transform: scale(1.1);
}

/* ---- 反馈条（toast） ---- */
.feedback-bar {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(76, 175, 80, 0.95);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-base);
  font-weight: 600;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  transition: all var(--transition);
}

.feedback-bar.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.feedback-bar.negative {
  background: rgba(244, 67, 54, 0.95);
}

/* ---- 空状态 ---- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-2xl);
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 64px;
  opacity: 0.5;
}

.empty-state .empty-title {
  font-size: var(--font-size-md);
  font-weight: 600;
}

.empty-state .empty-desc {
  font-size: var(--font-size-sm);
  text-align: center;
}

/* ---- 进度条 ---- */
.progress-bar {
  width: 100%;
  height: 8px;
  background: rgba(0,0,0,0.1);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 4px;
  background: var(--theme-gradient, linear-gradient(90deg, #FF6B9D, #FF8FAB));
  transition: width var(--transition-slow);
}

/* ---- Tab 选择器 ---- */
.tab-selector {
  display: flex;
  gap: var(--space-xs);
  background: rgba(0,0,0,0.08);
  border-radius: var(--border-radius-full);
  padding: 4px;
}

.tab-selector .tab-item {
  flex: 1;
  padding: 8px 12px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-selector .tab-item.active {
  background: #FFFFFF;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}

/* ---- 选择卡片 ---- */
.select-card {
  padding: var(--space-md);
  border-radius: var(--border-radius);
  border: 2px solid #E0E0E0;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
}

.select-card.active,
.select-card:active {
  border-color: var(--primary);
  background: rgba(255, 107, 157, 0.08);
}

/* ---- 徽章/标签 ---- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: var(--border-radius-full);
  font-size: 11px;
  font-weight: 700;
}

.badge-primary {
  background: var(--primary);
  color: #FFF;
}

.badge-gold {
  background: linear-gradient(135deg, #FFD700, #FFA000);
  color: #FFF;
}

/* 虚线添加按钮 */
.add-card-btn {
  border: 2px dashed rgba(255, 107, 157, 0.4);
  background: rgba(255, 107, 157, 0.05);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  min-height: 100px;
}

.add-card-btn:active {
  background: rgba(255, 107, 157, 0.12);
  border-color: var(--primary);
}

.add-card-btn .add-icon {
  font-size: 28px;
  opacity: 0.6;
}