/**
 * WMA Pro 组件样式
 * 
 * 包含：卡片、按钮、表单、徽章等可复用组件
 * 
 * @package WMA_Pro
 * @since 1.0.0
 */

/* ============================================
   文章卡片
   ============================================ */

.post-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.post-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.post-card-thumbnail {
    position: relative;
    overflow: hidden;
    padding-top: 62.5%; /* 16:10比例 */
}

.post-card-thumbnail img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.post-card:hover .post-card-thumbnail img {
    transform: scale(1.05);
}

.post-card-content {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.post-card-category {
    margin-bottom: var(--spacing-sm);
}

.post-card-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-tight);
}

.post-card-title a {
    color: var(--text-primary);
}

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

.post-card-excerpt {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-normal);
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.post-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: auto;
}

.post-card-meta span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

/* ============================================
   分类徽章
   ============================================ */

.category-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-primary);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-fast);
}

.category-badge:hover {
    background: var(--color-secondary);
    color: white;
    transform: translateY(-2px);
}

/* ============================================
   按钮
   ============================================ */

.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(102, 126, 234, 0.4);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: white;
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-outline:hover {
    background: var(--bg-secondary);
    border-color: var(--color-primary);
}

/* ============================================
   搜索表单
   ============================================ */

.search-form {
    position: relative;
    width: 100%;
}

.search-form-inner {
    display: flex;
    align-items: stretch;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    overflow: hidden;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.search-form-inner:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.search-field {
    flex: 1;
    padding: 14px 20px;
    border: none;
    background: transparent;
    font-size: 16px;
    color: var(--text-primary);
    outline: none;
    min-height: 48px;
}

.search-field::placeholder {
    color: var(--text-tertiary);
    font-size: 15px;
}

.search-submit {
    background: var(--color-primary);
    color: white;
    border: none;
    padding: 0 24px;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    font-weight: var(--font-weight-medium);
}

.search-submit:hover {
    background: var(--color-secondary);
}

.search-submit i,
.search-submit .dashicons {
    font-size: 20px;
    margin: 0;
}

/* ============================================
   标签
   ============================================ */

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
}

.tag-link {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.tag-link:hover {
    background: var(--color-primary);
    color: white;
}

/* ============================================
   分页导航
   ============================================ */

.pagination {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin: var(--spacing-2xl) 0;
}

.pagination .page-numbers {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 40px;
    height: 40px;
    padding: 0 var(--spacing-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.pagination .page-numbers:hover,
.pagination .page-numbers.current {
    background: var(--gradient-primary);
    color: white;
}

.pagination .page-numbers.dots {
    background: transparent;
}

/* ============================================
   面包屑导航
   ============================================ */

.breadcrumbs {
    padding: var(--spacing-md) 0;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.breadcrumbs-inner {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.breadcrumb-item {
    color: var(--text-secondary);
}

.breadcrumb-item:hover {
    color: var(--color-primary);
}

.breadcrumb-current {
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
}

.breadcrumb-separator {
    color: var(--text-tertiary);
}

/* ============================================
   加载动画
   ============================================ */

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   工具类
   ============================================ */

.screen-reader-text {
    clip: rect(1px, 1px, 1px, 1px);
    position: absolute !important;
    height: 1px;
    width: 1px;
    overflow: hidden;
    word-wrap: normal !important;
}

.skip-link:focus {
    clip: auto;
    height: auto;
    width: auto;
    display: block;
    padding: var(--spacing-md);
    background: var(--color-primary);
    color: white;
    text-align: center;
    z-index: 100000;
}