/* 增强样式 - 现代化Three.js & Cesium实例网站 */

/* 现代化头部样式 */
.modern-header {
  background: rgba(10, 14, 26, 0.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 212, 255, 0.3);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  padding: 0 24px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
}

.modern-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 8px 16px;
  border-radius: 12px;
  background: rgba(0, 212, 255, 0.1);
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.modern-logo:hover {
  background: rgba(0, 212, 255, 0.2);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.15);
}

.modern-logo img {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  padding: 4px;
}

.modern-logo-text {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, #00d4ff 0%, #7b61ff 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* 现代化导航链接 */
.modern-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.modern-nav-link {
  padding: 10px 20px;
  border-radius: 8px;
  color: #b8c2cc;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.modern-nav-link:hover {
  color: #ffffff;
  background: rgba(0, 212, 255, 0.1);
  transform: translateY(-1px);
}

.modern-nav-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.modern-nav-link:hover::before {
  left: 100%;
}

/* 现代化主导航菜单 */
.modern-main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.modern-nav-item {
  padding: 10px 24px;
  border-radius: 8px;
  color: #b8c2cc;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 500;
  position: relative;
}

.modern-nav-item:hover {
  color: #ffffff;
  background: rgba(0, 212, 255, 0.1);
}

.modern-nav-item.active {
  color: #00d4ff;
  background: rgba(0, 212, 255, 0.15);
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

.modern-nav-item.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: #00d4ff;
  border-radius: 1px;
}

/* 现代化侧边栏 */
.modern-sidebar {
  background: linear-gradient(180deg, rgba(10, 14, 26, 0.95) 0%, rgba(26, 31, 46, 0.9) 100%);
  backdrop-filter: blur(15px);
  border-right: 1px solid rgba(0, 212, 255, 0.2);
  width: 280px;
  height: calc(100vh - 70px);
  overflow-y: auto;
  position: relative;
}

.modern-sidebar-group {
  margin: 16px 0;
}

.modern-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  color: #00d4ff;
  font-weight: 600;
  font-size: 14px;
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
  margin: 0 16px;
}

.modern-group-badge {
  background: linear-gradient(135deg, #00d4ff 0%, #7b61ff 100%);
  color: white;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.modern-sidebar-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  margin: 4px 16px;
  border-radius: 8px;
  color: #b8c2cc;
  cursor: pointer;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.modern-sidebar-item:hover {
  background: rgba(0, 212, 255, 0.1);
  color: #ffffff;
  transform: translateX(4px);
}

.modern-sidebar-item.active {
  background: rgba(0, 212, 255, 0.15);
  color: #00d4ff;
  border-left-color: #00d4ff;
  box-shadow: 0 4px 15px rgba(0, 212, 255, 0.1);
}

.modern-item-badge {
  background: rgba(123, 97, 255, 0.2);
  color: #7b61ff;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

/* 现代化内容区域 */
.modern-content {
  background: linear-gradient(135deg, rgba(10, 14, 26, 0.8) 0%, rgba(26, 31, 46, 0.7) 100%);
  backdrop-filter: blur(10px);
  border-left: 1px solid rgba(0, 212, 255, 0.1);
  height: calc(100vh - 70px);
  overflow-y: auto;
  position: relative;
  margin-top: 70px; /* 为固定头部留出空间 */
}

/* modern-content-header 样式在 modern-example.css 中定义 */

.modern-stats {
  display: flex;
  align-items: center;
  gap: 16px;
}

.modern-stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 8px;
  border: 1px solid rgba(0, 212, 255, 0.2);
  color: #00d4ff;
  font-weight: 500;
}

.modern-search {
  display: flex;
  align-items: center;
  gap: 8px;
}

.modern-search-input {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(0, 212, 255, 0.3);
  border-radius: 8px;
  padding: 10px 16px;
  color: #ffffff;
  font-size: 14px;
  min-width: 280px;
  transition: all 0.3s ease;
}

.modern-search-input:focus {
  outline: none;
  border-color: #00d4ff;
  box-shadow: 0 0 0 2px rgba(0, 212, 255, 0.1);
}

.modern-search-input::placeholder {
  color: #8a94a6;
}

/* 现代化示例卡片 */
.modern-examples-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
  padding: 16px;
}

.modern-example-card {
  background: linear-gradient(135deg, rgba(26, 31, 46, 0.8) 0%, rgba(10, 14, 26, 0.9) 100%);
  border: 1px solid rgba(0, 212, 255, 0.2);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  position: relative;
  backdrop-filter: blur(10px);
}

.modern-example-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 212, 255, 0.15);
  border-color: rgba(0, 212, 255, 0.5);
}

.modern-card-tag {
  position: absolute;
  top: 12px;
  right: 12px;
  background: linear-gradient(135deg, #ff6b9d 0%, #ff8e53 100%);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  z-index: 2;
}

.modern-card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.modern-example-card:hover .modern-card-image {
  transform: scale(1.05);
}

.modern-card-content {
  padding: 20px;
}

.modern-card-title {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 8px;
  line-height: 1.4;
}

.modern-card-author {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.modern-author-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid rgba(0, 212, 255, 0.5);
}

.modern-author-name {
  font-size: 12px;
  color: #8a94a6;
}

/* 现代化分割线 */
.modern-divider {
  margin: 32px 24px;
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.5), transparent);
  position: relative;
}

.modern-divider::before {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background: #00d4ff;
  border-radius: 50%;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .modern-sidebar {
    width: 200px;
  }
  
  .modern-examples-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
    padding: 12px;
  }
}

@media (max-width: 768px) {
  .modern-header {
    padding: 0 16px;
    height: 60px;
  }
  
  .modern-logo-text {
    font-size: 18px;
  }
  
  .modern-sidebar {
    width: 100%;
    height: auto;
    position: absolute;
    z-index: 999;
  }
  
  .modern-content {
    margin-left: 0;
  }
  
  .modern-examples-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 16px;
  }
}