/* ============================================
   ADC Metal Tech - Custom CSS
   補充樣式與特殊效果
   ============================================ */

/* 菜單樣式 */
.nav-menu {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav-menu li {
    list-style: none;
}

.nav-menu a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--adc-foreground);
    transition: color 200ms;
}

.nav-menu a:hover {
    color: var(--adc-primary);
}

.nav-menu li.current-menu-item > a {
    color: var(--adc-primary);
    font-weight: 600;
}

/* 搜尋表單 */
.search-form {
    display: flex;
    gap: 0.5rem;
    max-width: 300px;
}

.search-form input[type="search"] {
    flex: 1;
    padding: 0.5rem 1rem;
    border: 1px solid var(--adc-border);
    border-radius: var(--adc-radius);
    font-size: 0.875rem;
}

.search-form button {
    padding: 0.5rem 1rem;
    background-color: var(--adc-primary);
    color: white;
    border: none;
    border-radius: var(--adc-radius);
    cursor: pointer;
    font-size: 0.875rem;
    transition: background-color 150ms;
}

.search-form button:hover {
    background-color: #0a3a6e;
}

/* 文章列表 */
.post-item {
    margin-bottom: 2rem;
    transition: all 300ms;
}

.post-item:hover {
    box-shadow: var(--adc-shadow-lg);
    transform: translateY(-4px);
}

.post-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.post-title a {
    color: var(--adc-foreground);
    transition: color 200ms;
}

.post-title a:hover {
    color: var(--adc-primary);
}

.post-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--adc-muted-foreground);
    margin-bottom: 1rem;
}

.post-thumbnail {
    margin: 1.5rem 0;
    border-radius: var(--adc-radius);
    overflow: hidden;
}

.post-thumbnail img {
    width: 100%;
    height: auto;
    display: block;
}

.post-content {
    margin-bottom: 1.5rem;
}

.post-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--adc-border);
}

/* 分頁 */
.pagination {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.pagination a,
.pagination span {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--adc-border);
    border-radius: var(--adc-radius);
    text-decoration: none;
    transition: all 150ms;
}

.pagination a:hover {
    background-color: var(--adc-primary);
    color: white;
    border-color: var(--adc-primary);
}

.pagination .current {
    background-color: var(--adc-primary);
    color: white;
    border-color: var(--adc-primary);
}

/* 分類篩選按鈕 */
.category-filter {
    transition: all 150ms cubic-bezier(0.4, 0, 0.2, 1);
}

.category-filter:hover {
    transform: translateY(-2px);
    box-shadow: var(--adc-shadow-md);
}

/* 產品卡片動畫 */
.product-card {
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 響應式圖片 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 嵌入式影片 */
iframe {
    max-width: 100%;
}

/* 表格樣式 */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

table th {
    background-color: rgba(15, 76, 142, 0.1);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--adc-border);
}

table td {
    padding: 1rem;
    border-bottom: 1px solid var(--adc-border);
}

table tr:hover {
    background-color: rgba(15, 76, 142, 0.05);
}

/* 清單樣式 */
ul, ol {
    margin: 1rem 0;
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
}

/* 引用樣式 */
blockquote {
    border-left: 4px solid var(--adc-primary);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    color: var(--adc-muted-foreground);
    font-style: italic;
}

/* 代碼樣式 */
code {
    background-color: var(--adc-input);
    padding: 0.2rem 0.4rem;
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
}

pre {
    background-color: var(--adc-input);
    padding: 1rem;
    border-radius: var(--adc-radius);
    overflow-x: auto;
    margin: 1.5rem 0;
}

pre code {
    background-color: transparent;
    padding: 0;
}

/* 水平分隔線 */
hr {
    border: none;
    border-top: 1px solid var(--adc-border);
    margin: 2rem 0;
}

/* 焦點狀態 */
:focus-visible {
    outline: 2px solid var(--adc-primary);
    outline-offset: 2px;
}

/* 打印樣式 */
@media print {
    header,
    footer,
    .menu-toggle,
    .search-wrapper {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    a {
        color: black;
        text-decoration: underline;
    }
}

/* 無障礙樣式 */
.screen-reader-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* 跳過鏈接 */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--adc-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    z-index: 100;
}

.skip-link:focus {
    top: 0;
}

/* 加載動畫 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(15, 76, 142, 0.3);
    border-radius: 50%;
    border-top-color: var(--adc-primary);
    animation: spin 1s ease-in-out infinite;
}

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

/* 提示訊息 */
.alert {
    padding: 1rem;
    border-radius: var(--adc-radius);
    margin-bottom: 1rem;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #166534;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #991b1b;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #92400e;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #1e40af;
}

/* 自訂顏色變數 */
:root {
    --adc-success: #22c55e;
    --error: #ef4444;
    --adc-warning: #f59e0b;
    --adc-info: #3b82f6;
}

/* 深色模式支持（可選） */
@media (prefers-color-scheme: dark) {
    :root {
        --adc-background: #1f2937;
        --adc-foreground: #f3f4f6;
        --adc-card: #374151;
        --adc-card-foreground: #f3f4f6;
        --adc-muted: #4b5563;
        --adc-muted-foreground: #d1d5db;
        --adc-border: #4b5563;
        --adc-input: #1f2937;
    }
    
    body {
        background-color: var(--adc-background);
        color: var(--adc-foreground);
    }
    
    header {
        background-color: var(--adc-card);
        border-bottom-color: var(--adc-border);
    }
}