/* ==============================================
   Component Style System - Design Token-Based Component Library
   ============================================== */

/* 站点头部 */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(11, 15, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-primary);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.site-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-brand);
  opacity: 0.6;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  padding: var(--space-lg) 0;
  position: relative;
}

.nav .brand {
  font-weight: var(--font-weight-extrabold);
  font-size: var(--font-size-xl);
  letter-spacing: -0.02em;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.nav .brand::after {
  content: '🍔';
  position: absolute;
  right: -28px;
  top: 50%;
  transform: translateY(-50%);
  font-size: var(--font-size-lg);
}

.nav .spacer {
  flex: 1;
}

.nav a {
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-lg);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.nav a::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-brand);
  transition: left var(--transition-normal);
  z-index: -1;
  opacity: 0.1;
}

.nav a:hover {
  color: var(--color-text-primary);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.nav a:hover::before {
  left: 0;
}

/* 按钮系统 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
  background: var(--color-interactive-default);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:hover {
  background: var(--color-interactive-hover);
  border-color: var(--color-border-active);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.btn.primary {
  background: var(--color-brand-primary);
  border: 0;
  color: #062016;
  font-weight: var(--font-weight-bold);
}

.btn.primary:hover {
  background: #5dd396;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn.secondary {
  background: var(--color-brand-secondary);
  border: 0;
  color: #0a1628;
  font-weight: var(--font-weight-bold);
}

.btn.secondary:hover {
  background: #7bc3ff;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Hero 区域 */
.hero-section {
  background: var(--gradient-hero);
  padding: var(--space-5xl) 0 var(--space-4xl);
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 30% 20%, rgba(105, 228, 165, 0.1) 0%, transparent 50%),
              radial-gradient(circle at 70% 80%, rgba(154, 211, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.hero-title {
  font-size: clamp(var(--font-size-2xl), 5vw, 3.5rem);
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
  line-height: var(--line-height-tight);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto var(--space-2xl);
  line-height: var(--line-height-relaxed);
}

.hero-features {
  margin-top: var(--space-3xl);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
  max-width: 800px;
  margin: 0 auto;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
}

.feature-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-active);
}

.feature-icon {
  font-size: var(--font-size-2xl);
  flex-shrink: 0;
}

.feature-text {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
}

.feature-text strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
  display: block;
  margin-bottom: var(--space-xs);
}

@media (max-width: 640px) {
  .feature-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .feature-item {
    padding: var(--space-md);
    gap: var(--space-md);
  }
  
  .feature-icon {
    font-size: var(--font-size-xl);
  }
}

/* KPI 指标卡片 */
.kpi {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin: var(--space-2xl) 0;
  position: relative;
  z-index: 1;
}

.kpi-card {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  padding: var(--space-2xl) var(--space-xl);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-border-active);
}

.kpi-card:hover::before {
  transform: scaleX(1);
}

.kpi-value {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
  line-height: 1;
  text-shadow: 0 2px 4px rgba(105, 228, 165, 0.3);
  letter-spacing: -0.02em;
  position: relative;
}

.kpi-value::before {
  content: attr(data-value);
  position: absolute;
  top: 0;
  left: 0;
  background: linear-gradient(45deg, #69e4a5, #9ad3ff);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: blur(1px);
  opacity: 0.6;
  z-index: -1;
}

.kpi-value.loading {
  background: linear-gradient(90deg, 
    var(--color-text-muted) 25%, 
    var(--color-brand-primary) 50%, 
    var(--color-text-muted) 75%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }
  100% {
    background-position: 200% 0;
  }
}

.kpi-label {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.kpi-icon {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-sm);
  opacity: 0.8;
}

@media (max-width: 768px) {
  .kpi {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .hero-section {
    padding: var(--space-4xl) 0 var(--space-3xl);
  }
}

/* 工具栏 */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
  margin: var(--space-4xl) 0 var(--space-3xl);
  padding: var(--space-xl) var(--space-2xl);
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  position: relative;
}

.toolbar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gradient-brand);
  opacity: 0.3;
}

/* 筛选芯片 */
.chip {
  background: var(--color-interactive-default);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-primary);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-normal);
  user-select: none;
  position: relative;
  overflow: hidden;
}

.chip::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: var(--gradient-brand);
  transition: left var(--transition-normal);
  z-index: -1;
  opacity: 0.8;
}

.chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-text-primary);
}

.chip:hover::before {
  left: 0;
}

.chip.active {
  background: var(--gradient-brand);
  border-color: var(--color-brand-primary);
  color: #062016;
  font-weight: var(--font-weight-bold);
  box-shadow: var(--shadow-lg);
}

.chip.active::before {
  display: none;
}

/* 搜索框 */
.search {
  flex: 1;
  min-width: 220px;
  position: relative;
}

.search input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-fast);
}

.search input:focus {
  outline: none;
  border-color: var(--color-brand-secondary);
  box-shadow: 0 0 0 3px rgba(154, 211, 255, 0.1);
}

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

/* 计数显示 */
.count {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  white-space: nowrap;
}

/* 菜谱卡片 */
.recipe-card {
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  padding: 0;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.recipe-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.recipe-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-2xl);
  border-color: var(--color-border-active);
}

.recipe-card:hover::before {
  transform: scaleX(1);
}

.recipe-card-image {
  position: relative;
  overflow: hidden;
}

.recipe-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.recipe-card:hover img {
  transform: scale(1.05);
}

.recipe-card-content {
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  flex: 1;
}

.recipe-title {
  font-weight: var(--font-weight-extrabold);
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  margin: 0;
}

.recipe-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.recipe-badges {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

.badge {
  font-size: var(--font-size-xs);
  background: var(--color-interactive-default);
  border: 1px solid var(--color-border-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.badge.popular {
  background: var(--color-brand-primary);
  color: #062016;
  border-color: var(--color-brand-primary);
}

.badge.quick {
  background: var(--color-success);
  color: #0a2e1a;
  border-color: var(--color-success);
}

/* 稀有度标签 */
.rarity-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.rarity-pill {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
}

.rarity-pill.legendary {
  background: #fbbf24;
  color: #92400e;
  border-color: #fbbf24;
}

.rarity-pill.mythical {
  background: #a855f7;
  color: #581c87;
  border-color: #a855f7;
}

.rarity-pill.divine {
  background: #06b6d4;
  color: #0e7490;
  border-color: #06b6d4;
}

.rarity-pill.prismatic {
  background: linear-gradient(45deg, #f59e0b, #ef4444, #8b5cf6, #06b6d4);
  color: white;
  border: none;
  font-weight: var(--font-weight-bold);
}

/* 卡片操作区 */
.card-actions {
  margin-top: auto;
  display: flex;
  gap: var(--space-md);
}



/* 区域容器 */
.section {
  margin: var(--space-3xl) 0;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.section-header {
  background: var(--color-bg-secondary);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border-primary);
}

.section-header h2 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
}

.section-body {
  padding: var(--space-lg);
}

/* How to Cook Section - Enhanced Layout */
.howto {
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  padding: var(--space-5xl) var(--space-2xl);
  border-radius: var(--radius-xl);
  margin: var(--space-4xl) 0;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.howto::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
}

.howto .content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5xl);
  max-width: 1200px;
  margin: 0 auto;
}

.howto .content-column {
  display: flex;
  flex-direction: column;
}

.howto h3 {
  color: var(--text-primary);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--space-2xl);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.howto p {
  color: var(--text-secondary);
  line-height: var(--line-height-loose);
  margin-bottom: var(--space-2xl);
  font-size: 1.1rem;
}

.howto ol {
  padding: 0;
  list-style: none;
  counter-reset: step-counter;
  display: grid;
  gap: var(--space-xl);
}

.howto li {
  counter-increment: step-counter;
  display: flex;
  align-items: flex-start;
  gap: var(--space-xl);
  padding: var(--space-2xl);
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.howto li::before {
  content: counter(step-counter);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: white;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 2;
}

.howto li::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary));
  transform: scaleY(0);
  transition: transform 0.3s ease;
}

.howto li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.howto li:hover::after {
  transform: scaleY(1);
}

.howto li strong {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1.1rem;
  display: block;
  margin-bottom: var(--space-sm);
}

.howto li br + text,
.howto li strong + br + text {
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

.howto b {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  position: relative;
}

.howto b::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0.1;
  border-radius: var(--radius-sm);
  z-index: -1;
}

/* Tips Section Enhancement */
.howto .content-column:last-child {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  height: fit-content;
}

/* Rarity Guide Styling */
.rarity-guide {
  display: grid;
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.rarity-item {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.rarity-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  transition: transform 0.3s ease;
  transform: scaleY(0);
}

.rarity-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.rarity-item:hover::before {
  transform: scaleY(1);
}

.rarity-badge {
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-width: 80px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.rarity-badge.normal {
  background: linear-gradient(135deg, #9CA3AF, #6B7280);
  color: white;
}

.rarity-item:has(.rarity-badge.normal)::before {
  background: linear-gradient(180deg, #9CA3AF, #6B7280);
}

.rarity-badge.rare {
  background: linear-gradient(135deg, #3B82F6, #1D4ED8);
  color: white;
}

.rarity-item:has(.rarity-badge.rare)::before {
  background: linear-gradient(180deg, #3B82F6, #1D4ED8);
}

.rarity-badge.legendary {
  background: linear-gradient(135deg, #F59E0B, #D97706);
  color: white;
}

.rarity-item:has(.rarity-badge.legendary)::before {
  background: linear-gradient(180deg, #F59E0B, #D97706);
}

.rarity-badge.mythical {
  background: linear-gradient(135deg, #8B5CF6, #7C3AED);
  color: white;
}

.rarity-item:has(.rarity-badge.mythical)::before {
  background: linear-gradient(180deg, #8B5CF6, #7C3AED);
}

.rarity-badge.divine {
  background: linear-gradient(135deg, #06B6D4, #0891B2);
  color: white;
}

.rarity-item:has(.rarity-badge.divine)::before {
  background: linear-gradient(180deg, #06B6D4, #0891B2);
}

.rarity-badge.prismatic {
  background: linear-gradient(135deg, #EC4899, #BE185D);
  color: white;
}

.rarity-item:has(.rarity-badge.prismatic)::before {
  background: linear-gradient(180deg, #EC4899, #BE185D);
}

.rarity-item span:last-child {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: var(--line-height-relaxed);
}

/* Pro Tips Section */
.pro-tips {
  margin-top: var(--space-2xl);
}

.pro-tips h4 {
  color: var(--text-primary);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pro-tips h4::before {
  content: '🔥';
  font-size: 1.3rem;
}

.pro-tips ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-md);
}

.pro-tips li {
  padding: var(--space-lg);
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-tertiary);
  transition: all 0.3s ease;
  position: relative;
}

.pro-tips li::before {
  content: '💡';
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  font-size: 1.2rem;
}

.pro-tips li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.pro-tips li {
  padding-left: var(--space-4xl);
  color: var(--text-secondary);
  line-height: var(--line-height-relaxed);
}

/* Responsive Design */
@media (max-width: 968px) {
  .howto .content-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3xl);
  }
  
  .howto h3 {
    font-size: 1.5rem;
  }
  
  .howto li {
    padding: var(--space-lg);
    gap: var(--space-lg);
  }
  
  .howto li::before {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}

/* 详细菜谱 */
.recipe-detail {
  margin: var(--space-xl) 0;
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-secondary);
}

.recipe-detail-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  background: var(--color-bg-tertiary);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border-primary);
}

.recipe-detail-header h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
}

.tag {
  font-size: var(--font-size-xs);
  border: 1px solid var(--color-border-primary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  background: var(--color-interactive-default);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
}

.tag.difficulty-hard {
  background: var(--color-error);
  color: white;
  border-color: var(--color-error);
}

.tag.difficulty-medium {
  background: var(--color-warning);
  color: #92400e;
  border-color: var(--color-warning);
}

.tag.difficulty-easy {
  background: var(--color-success);
  color: #0a2e1a;
  border-color: var(--color-success);
}

.recipe-detail-content {
  padding: var(--space-lg);
}

.recipe-columns {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

@media (max-width: 900px) {
  .recipe-columns {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 520px) {
  .recipe-columns {
    grid-template-columns: 1fr;
  }
}

.recipe-column {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.column-title {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-md);
}

.ingredient-row {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-sm);
}

.variant-item {
  margin: var(--space-sm) 0;
  padding: var(--space-sm);
  background: var(--color-bg-primary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-secondary);
}

.variant-rarity {
  font-weight: var(--font-weight-bold);
  color: var(--color-brand-primary);
}

.variant-ingredients {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

/* 站点底部 */
.site-footer {
  margin: var(--space-3xl) 0;
  padding: var(--space-xl) 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  border-top: 1px solid var(--color-border-primary);
}

/* 加载状态 */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
}

.loading::after {
  content: '';
  width: 20px;
  height: 20px;
  margin-left: var(--space-sm);
  border: 2px solid var(--color-border-primary);
  border-top-color: var(--color-brand-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
}

.empty-state h3 {
  margin: 0 0 var(--space-sm) 0;
  color: var(--color-text-secondary);
}

/* 响应式优化 */
@media (max-width: 1024px) {
  .recipe-columns {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: var(--space-lg) var(--space-md);
  }
  
  .hero-section {
    padding: var(--space-3xl) 0 var(--space-2xl);
  }
  
  .hero-title {
    font-size: clamp(var(--font-size-xl), 8vw, var(--font-size-2xl));
  }
  
  .nav {
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-md) 0;
  }
  
  .nav .brand {
    font-size: var(--font-size-lg);
  }
  
  .nav .brand::after {
    right: -24px;
    font-size: var(--font-size-md);
  }
  
  .toolbar {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-md);
    padding: var(--space-lg);
  }
  
  .search {
    min-width: auto;
    order: -1;
  }
  
  .recipe-columns {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .recipe-card-content {
    padding: var(--space-lg);
  }
  
  .card-actions {
    flex-direction: column;
    gap: var(--space-sm);
  }
}

@media (max-width: 480px) {
  .container {
    padding: var(--space-md) var(--space-sm);
  }
  
  .hero-section {
    padding: var(--space-2xl) 0 var(--space-xl);
  }
  
  .hero-subtitle {
    font-size: var(--font-size-base);
  }
  
  .kpi {
    gap: var(--space-md);
  }
  
  .kpi-card {
    padding: var(--space-lg);
  }
  
  .toolbar {
    padding: var(--space-md);
  }
  
  .chip {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-xs);
  }
  
  .recipe-card:hover {
    transform: translateY(-4px) scale(1.01);
  }
  
  .nav a {
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
  }
}