/* ================================================================
   搜索系统 - Search System
   包含：搜索框、搜索结果、搜索历史、搜索建议、搜索状态
   ================================================================ */

/* ============= 搜索容器 ============= */
.search-container {
  max-width: 720px;
  margin: 0 auto;
  position: relative;
}

/* ============= 搜索框 ============= */
.search-box {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  position: relative;
}

.search-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition-base);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-light);
}

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

.search-btn {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
  cursor: pointer;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: var(--transition-base);
  white-space: nowrap;
}

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

.search-btn:active {
  transform: translateY(0);
}

.search-options {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 1rem;
}

/* ============= 搜索建议 ============= */
.search-suggestions {
  position: absolute;
  top: 100%;
  left: 0;
  right: 75px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-top: none;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-height: 300px;
  overflow-y: auto;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition-base);
}

.search-container:focus-within .search-suggestions {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.suggestion-item {
  display: flex;
  align-items: center;
  padding: 0.6rem 1rem;
  cursor: pointer;
  transition: var(--transition-base);
  border-bottom: 1px solid var(--border-color);
}

.suggestion-item:last-child {
  border-bottom: none;
}

.suggestion-item:hover {
  background: var(--bg-tertiary);
}

.suggestion-icon {
  margin-right: 0.6rem;
  font-size: 0.9rem;
  opacity: 0.7;
}

.suggestion-text {
  color: var(--text-primary);
  font-size: 0.9rem;
}

/* ============= 搜索历史 ============= */
.history-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.history-item-container {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 1.5rem;
  padding: 0.25rem 0.4rem;
  transition: var(--transition-base);
}

.history-item-container:hover {
  background: var(--accent-light);
  transform: scale(1.02);
  box-shadow: var(--shadow-sm);
}

.history-item {
  flex: 1;
  background: transparent;
  border: none;
  padding: 0.15rem 0.5rem;
  border-radius: 1rem;
  cursor: pointer;
  transition: var(--transition-base);
  color: var(--text-primary);
  font-size: 0.8rem;
  font-weight: 500;
}

.history-item:hover {
  background: var(--accent-primary);
  color: white;
}

.history-delete-btn {
  background: var(--error-color);
  color: white;
  border: none;
  width: 1.8rem;
  height: 1.8rem;
  border-radius: 50%;
  font-weight: bold;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-base);
  opacity: 0.8;
}

.history-delete-btn:hover {
  background: #dc2626;
  transform: scale(1.1);
  opacity: 1;
}

/* ============= 搜索结果网格 ============= */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeIn 0.3s ease-in-out;
}

/* ============= 搜索结果项 ============= */
.result-item {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 1rem;
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 180px;
  overflow: visible;
}

.result-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
}

.result-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent-primary);
}

/* 不可用结果样式 */
.result-item.result-unavailable {
  opacity: 0.75;
  border-left: 4px solid var(--error-color);
  background: linear-gradient(135deg, var(--bg-primary) 0%, rgba(239, 68, 68, 0.02) 100%);
}

.result-item.result-unavailable::before {
  background: var(--error-color);
}

.result-item.result-unavailable::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(239, 68, 68, 0.03) 10px,
    rgba(239, 68, 68, 0.03) 20px
  );
  pointer-events: none;
  border-radius: var(--radius-md);
  z-index: 0;
}

.result-item.result-unavailable .result-title {
  color: var(--text-muted);
  text-decoration: line-through !important;
  text-decoration-color: var(--error-color);
}

/* ============= 结果内容 ============= */
.result-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.result-image {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 0.5rem;
}

.result-title {
  font-weight: 600;
  color: var(--accent-primary);
  font-size: 1rem;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.result-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.4;
}

.result-url {
  font-size: 0.75rem;
  color: var(--text-muted);
  word-break: break-all;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ============= 结果元信息 ============= */
.result-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

/* ============= 结果状态 ============= */
.result-status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.75rem;
  font-size: 0.7rem;
  font-weight: 500;
}

.result-status.status-available {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.result-status.status-unavailable {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.result-status.status-timeout {
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.result-status.status-checking {
  background: rgba(59, 130, 246, 0.1);
  color: #2563eb;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.unavailable-reason {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error-color);
  padding: 0.375rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  margin: 0.25rem 0;
  border: 1px solid rgba(239, 68, 68, 0.2);
  display: flex;
  align-items: center;
  gap: 0.25rem;
  position: relative;
  z-index: 1;
}

.unavailable-reason::before {
  content: '⚠️';
  font-size: 0.7rem;
}

/* ============= 结果操作按钮 ============= */
.result-actions {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
}

.result-actions .action-btn {
  height: 2.25rem;
  padding: 0.375rem 0.75rem;
  font-size: 0.8rem;
  white-space: nowrap;
  min-width: 70px;
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
}

.result-actions .action-btn:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.result-actions .action-btn.disabled {
  background: var(--bg-tertiary);
  color: var(--text-muted);
  cursor: not-allowed;
  opacity: 0.6;
}

.result-actions .action-btn.disabled:hover {
  transform: none;
  box-shadow: none;
}

/* ============= 搜索信息区域 ============= */
.search-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.search-status-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.search-unavailable-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  background: rgba(239, 68, 68, 0.1);
  color: var(--error-color);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.search-unavailable-summary::before {
  content: '⚠️';
  font-size: 0.75rem;
}

/* ============= 收藏夹 ============= */
.favorites-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.favorite-item {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 1rem;
  border: 1px solid var(--border-color);
  transition: var(--transition-base);
}

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

.favorite-title {
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.favorite-url {
  font-size: 0.85rem;
  color: var(--text-secondary);
  word-break: break-all;
  margin-bottom: 0.75rem;
}

.favorite-actions {
  display: flex;
  gap: 0.5rem;
}

/* 搜索状态指示器 */
.search-status-indicator {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}

.search-status-indicator .status-message {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.search-status-indicator .status-icon {
  font-size: 1.25rem;
}

/* 快速提示 */
.quick-tips {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-left: 4px solid var(--accent-primary);
}

.quick-tips .tips-content h3 {
  margin: 0 0 1rem 0;
  color: var(--accent-primary);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.quick-tips .tips-content ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.quick-tips .tips-content li {
  padding: 0.5rem 0;
  color: var(--text-primary);
  font-size: 0.95rem;
  position: relative;
  padding-left: 1.5rem;
}

.quick-tips .tips-content li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: bold;
}

/* ============= 响应式设计 ============= */
@media (max-width: 768px) {
  .search-box {
    flex-direction: column;
  }
  
  .search-options {
    flex-direction: column;
    gap: 0.75rem;
  }
  
  .results-grid,
  .favorites-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .result-item {
    padding: 0.875rem;
    min-height: 160px;
  }
  
  .search-info {
    flex-direction: column;
    align-items: stretch;
  }
  
  .result-actions .action-btn {
    flex: 0 0 calc(50% - 0.25rem);
    font-size: 0.75rem;
  }
  
  .history-item-container {
    flex-direction: column;
    align-items: stretch;
    padding: 0.375rem;
  }
  
  .history-item-container .history-item {
    text-align: center;
    padding: 0.5rem;
  }
  
  .history-delete-btn {
    width: 1.6rem;
    height: 1.6rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .search-container {
    padding: 0 0.5rem;
  }
  
  .result-item {
    padding: 0.75rem;
    min-height: 150px;
  }
  
  .result-actions .action-btn {
    flex: 1;
    min-width: calc(50% - 0.25rem);
    font-size: 0.7rem;
  }
}

/* ============= 深色主题适配 ============= */
[data-theme="dark"] .result-item.result-unavailable {
  background: linear-gradient(135deg, var(--bg-primary) 0%, rgba(239, 68, 68, 0.05) 100%);
}

[data-theme="dark"] .result-item.result-unavailable::after {
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(239, 68, 68, 0.06) 10px,
    rgba(239, 68, 68, 0.06) 20px
  );
}

[data-theme="dark"] .unavailable-reason {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
}

[data-theme="dark"] .search-unavailable-summary {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.3);
}