/* 极简主题样式 */
:root {
  --primary-color: #000000;
  --secondary-color: #666666;
  --accent-color: #0066cc;
  --background-color: #ffffff;
  --surface-color: #f8f9fa;
  --text-primary: #000000;
  --text-secondary: #666666;
  --border-color: #e9ecef;
  --hover-color: #f1f3f4;
}

[data-theme="dark"] {
  --primary-color: #ffffff;
  --secondary-color: #cccccc;
  --accent-color: #4da6ff;
  --background-color: #000000;
  --surface-color: #111111;
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --border-color: #333333;
  --hover-color: #222222;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: var(--background-color);
  color: var(--text-primary);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  transition: all 0.3s ease;
}

/* 极简布局 */
.minimal-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.minimal-header {
  border-bottom: 1px solid var(--border-color);
  padding: 20px 0;
  margin-bottom: 40px;
}

.minimal-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.minimal-logo {
  font-size: 24px;
  font-weight: 600;
  color: var(--primary-color);
  text-decoration: none;
}

.minimal-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.minimal-menu a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

.minimal-menu a:hover,
.minimal-menu a.active {
  color: var(--primary-color);
}

/* 极简卡片 */
.minimal-card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 20px;
  transition: all 0.2s ease;
}

.minimal-card:hover {
  border-color: var(--accent-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.minimal-card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--primary-color);
}

.minimal-card-description {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

/* 极简按钮 */
.minimal-button {
  background: var(--primary-color);
  color: var(--background-color);
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
}

.minimal-button:hover {
  opacity: 0.8;
}

.minimal-button-outline {
  background: transparent;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
}

.minimal-button-outline:hover {
  background: var(--primary-color);
  color: var(--background-color);
}

/* 极简搜索 */
.minimal-search {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--background-color);
  color: var(--text-primary);
  font-size: 16px;
}

.minimal-search:focus {
  outline: none;
  border-color: var(--accent-color);
}

/* 极简网格 */
.minimal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

/* 极简标签 */
.minimal-tag {
  background: var(--surface-color);
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 2px;
  font-size: 12px;
  text-decoration: none;
  border: 1px solid var(--border-color);
}

.minimal-tag:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

/* 极简分页 */
.minimal-pagination {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin: 40px 0;
}

.minimal-pagination a,
.minimal-pagination span {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 2px;
}

.minimal-pagination a:hover,
.minimal-pagination .current {
  background: var(--primary-color);
  color: var(--background-color);
  border-color: var(--primary-color);
}

/* 极简页脚 */
.minimal-footer {
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  margin-top: 80px;
  text-align: center;
  color: var(--text-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
  .minimal-container {
    padding: 0 15px;
  }
  
  .minimal-nav {
    flex-direction: column;
    gap: 20px;
  }
  
  .minimal-menu {
    gap: 20px;
  }
  
  .minimal-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  
  .minimal-card {
    padding: 15px;
  }
}

/* 深色模式切换 */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.theme-toggle:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

/* 动画效果 */
.fade-in {
  animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 极简表单 */
.minimal-form {
  max-width: 500px;
  margin: 0 auto;
}

.minimal-form-group {
  margin-bottom: 20px;
}

.minimal-label {
  display: block;
  margin-bottom: 5px;
  font-weight: 500;
  color: var(--primary-color);
}

.minimal-input,
.minimal-textarea,
.minimal-select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  background: var(--background-color);
  color: var(--text-primary);
  font-size: 14px;
}

.minimal-input:focus,
.minimal-textarea:focus,
.minimal-select:focus {
  outline: none;
  border-color: var(--accent-color);
}

.minimal-textarea {
  resize: vertical;
  min-height: 100px;
}

/* 极简消息提示 */
.minimal-message {
  padding: 12px 16px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.minimal-message.success {
  background: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.minimal-message.error {
  background: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.minimal-message.info {
  background: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

/* Loading States */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  text-align: center;
}

.loading-state i[data-lucide="loader"] {
  animation: spin 1s linear infinite;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.loading-state p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

/* Empty States */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  text-align: center;
}

.empty-state i[data-lucide="inbox"] {
  color: var(--border-color);
  margin-bottom: 0.5rem;
  opacity: 0.5;
}

.empty-state p {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Hidden/Visible States */
.hidden {
  display: none !important;
}

.visible {
  display: block;
}

/* Subcategory Container States */
.subcategory-container {
  margin-bottom: 2.5rem;
}

.subcategory-container .websites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.subcategory-container .websites-grid.hidden {
  display: none;
}

/* View More Link */
.view-more-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  color: var(--accent-color);
  text-decoration: none;
  transition: all 0.2s ease;
}

.view-more-link:hover {
  text-decoration: underline;
  opacity: 0.8;
}

.view-more-link.hidden {
  display: none;
}

.view-more-link i {
  width: 1rem;
  height: 1rem;
}

/* Responsive Layout for Loading and Empty States */
@media (max-width: 768px) {
  .loading-state,
  .empty-state {
    padding: 2rem 1rem;
  }
  
  .loading-state i[data-lucide="loader"],
  .empty-state i[data-lucide="inbox"] {
    width: 2rem;
    height: 2rem;
  }
  
  .subcategory-container .websites-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
}

@media (max-width: 1024px) {
  .subcategory-container .websites-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}

/* Loading Spinner Animation Enhancement */
.loading-state i[data-lucide="loader"] {
  width: 2rem;
  height: 2rem;
}

/* Smooth Transitions for State Changes */
.subcategory-container .loading-state,
.subcategory-container .empty-state,
.subcategory-container .websites-grid {
  transition: opacity 0.3s ease-in-out;
}

/* Active State Highlighting */
.subcategory-link.active {
  background-color: var(--hover-color);
  color: var(--accent-color);
  font-weight: 600;
}

/* Scroll Smooth Behavior */
html {
  scroll-behavior: smooth;
}

/* Dark Mode Toggle Icon Visibility */
#theme-toggle span {
  display: flex;
  align-items: center;
  justify-content: center;
}

#theme-toggle span.hidden {
  display: none !important;
}

#theme-toggle span.block {
  display: flex !important;
}

/* Loading Overlay (Optional Enhancement) */
.loading-overlay {
  position: relative;
}

.loading-overlay::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--background-color);
  opacity: 0.7;
  display: none;
}

.loading-overlay.is-loading::after {
  display: block;
}


/* Glass Card Effect for Unified Layout */
.glass-card {
    background: linear-gradient(145deg, rgba(255,255,255,0.03) 0%, rgba(255,255,255,0.01) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light mode glass card */
:root:not(.dark) .glass-card {
    background: linear-gradient(145deg, rgba(255,255,255,0.95) 0%, rgba(249,250,251,0.95) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(229, 231, 235, 0.8);
}

.glass-card:hover {
    background: linear-gradient(145deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}

/* Light mode glass card hover */
:root:not(.dark) .glass-card:hover {
    background: linear-gradient(145deg, rgba(255,255,255,1) 0%, rgba(249,250,251,1) 100%);
    border-color: rgba(59, 130, 246, 0.3);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.1);
}

/* Shadow Glow Effect */
.shadow-glow {
    box-shadow: 0 0 20px rgba(48, 140, 232, 0.35);
}

/* Shadow Sub Active Effect */
.shadow-sub-active {
    box-shadow: 0 0 15px rgba(48, 140, 232, 0.15), inset 0 0 10px rgba(48, 140, 232, 0.05);
}

/* Scrollbar Hide */
.scrollbar-hide::-webkit-scrollbar {
    display: none;
}

.scrollbar-hide {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

/* Line Clamp Utilities */
.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}