/* ============================================
   搜索功能样式
   ============================================ */

/* 搜索框容器 */
.search-box {
    position: relative;
    flex: 1;
    max-width: 300px;
    margin: 0 16px;
}

/* 搜索输入框 */
#searchInput {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    background: #fff;
    color: #333;
    transition: all 0.3s ease;
    font-family: inherit;
    box-sizing: border-box;
}

#searchInput:focus {
    outline: none;
    border-color: #4a90e2;
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
    background: #f9fbff;
}

#searchInput::placeholder {
    color: #999;
}

/* 搜索结果容器 */
.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    width: 100%;
    box-sizing: border-box;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    animation: slideDown 0.2s ease;
}

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

.search-results ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* 搜索结果项 */
.search-result-item {
    border-bottom: 1px solid #f0f0f0;
    display: block;
}

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

.search-result-item a {
    display: block;
    padding: 16px;
    text-decoration: none;
    color: inherit;
    transition: background 0.2s, box-shadow 0.2s, border-radius 0.2s;
    border-radius: 4px;
}

.search-result-item a:hover {
    background: #f5f8fc;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.1);
}

/* 结果标题 */
.search-result-item strong {
    display: block;
    color: #333;
    font-size: 14px;
    margin-bottom: 6px;
    line-height: 1.4;
    word-break: break-word;
}

/* 结果元数据 */
.result-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: #999;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.result-meta .date {
    color: #999;
}

.result-meta .relevance {
    color: #4a90e2;
    font-weight: 500;
}

/* 标签 */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tag {
    display: inline-block;
    padding: 4px 10px;
    background: #f0f0f0;
    border-radius: 12px;
    font-size: 11px;
    color: #666;
    white-space: nowrap;
    transition: background 0.2s;
}

.tag:hover {
    background: #e0e0e0;
    cursor: pointer;
}

/* 未找到结果 */
.no-result {
    list-style: none !important;
    padding: 20px 12px !important;
    text-align: center;
    color: #999;
    font-size: 14px;
}

/* ============================================
   深色主题适配
   ============================================ */
[data-theme="dark"] .search-results {
    background: #2a2a2a;
    border-color: #444;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] #searchInput {
    background: #333;
    border-color: #555;
    color: #e0e0e0;
}

[data-theme="dark"] #searchInput:focus {
    border-color: #5a9fd4;
    background: #3a3a3a;
    box-shadow: 0 0 0 3px rgba(90, 159, 212, 0.1);
}

[data-theme="dark"] #searchInput::placeholder {
    color: #666;
}

[data-theme="dark"] .search-result-item a:hover {
    background: #3a4a5a;
    box-shadow: 0 2px 8px rgba(90, 159, 212, 0.2);
}

[data-theme="dark"] .search-result-item strong {
    color: #e0e0e0;
}

[data-theme="dark"] .result-meta {
    color: #999;
}

[data-theme="dark"] .tag {
    background: #444;
    color: #999;
    transition: background 0.2s;
}

[data-theme="dark"] .tag:hover {
    background: #555;
}

/* ============================================
   响应式设计（平板和手机）
   ============================================ */
@media (max-width: 768px) {
    .search-box {
        max-width: 200px;
        margin: 0 8px;
    }
    
    #searchInput {
        font-size: 16px; /* iOS 避免自动放大 */
    }
    
    .search-results {
        position: fixed;
        left: 10px;
        right: 10px;
        top: auto;
        bottom: auto;
        max-width: none;
        width: calc(100% - 20px);
    }
    
    .search-result-item a {
        padding: 10px;
    }
    
    .search-result-item strong {
        font-size: 13px;
    }
    
    .result-meta {
        font-size: 11px;
    }
    
    .tag {
        font-size: 10px;
    }
}

@media (max-width: 480px) {
    .search-box {
        max-width: 150px;
        margin: 0 4px;
    }
    
    .search-results {
        max-height: 300px;
    }
    
    .search-result-item a {
        padding: 8px;
    }
    
    .result-meta {
        flex-direction: column;
        gap: 2px;
    }
    
    .tags {
        gap: 4px;
    }
}

/* ============================================
   滚动条美化（仅 Webkit 浏览器）
   ============================================ */
.search-results::-webkit-scrollbar {
    width: 6px;
}

.search-results::-webkit-scrollbar-track {
    background: transparent;
}

.search-results::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.search-results::-webkit-scrollbar-thumb:hover {
    background: #999;
}

[data-theme="dark"] .search-results::-webkit-scrollbar-thumb {
    background: #555;
}

[data-theme="dark"] .search-results::-webkit-scrollbar-thumb:hover {
    background: #777;
}