/* ========================================
   活动模块现代样式 (Event Modern CSS)
   基于思源黑体，响应式设计
   ======================================== */

/* 字体定义 */
@font-face {
    font-family: 'SourceHanSansCN';
    src: url('../../../public/mainpack/fonts/SOURCEHANSANSCN-NORMAL.woff') format('woff');
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: 'SourceHanSansCN';
    src: url('../../../public/mainpack/fonts/SOURCEHANSANSCN-MEDIUM.woff') format('woff');
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: 'SourceHanSansCN';
    src: url('../../../public/mainpack/fonts/SOURCEHANSANSCN-BOLD.woff') format('woff');
    font-weight: 600;
    font-display: swap;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 4px;
}

/* 基础重置 */
.event-page {
    background-color: var(--bg-body);
    font-family: 'SourceHanSansCN', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    padding-bottom: 40px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   列表页 (Index)
   ======================================== */

/* 页面头部 */
.page-header {
    padding: 40px 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 32px;
}

.header-title h1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 8px 0;
    line-height: 1.2;
}

.header-title p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0;
}

.header-actions {
    display: flex;
    gap: 12px;
}

.btn-create {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-create:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: white;
}

/* 筛选区域 */
.filter-section {
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.filter-tabs {
    display: flex;
    gap: 8px;
    background: white;
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.filter-tab {
    padding: 6px 16px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.filter-tab:hover {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.05);
    text-decoration: none;
}

.filter-tab.active {
    background-color: var(--primary-color);
    color: white;
}

/* 活动网格 */
.event-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* 活动卡片 */
.event-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.event-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: rgba(37, 99, 235, 0.3);
}

.card-cover {
    position: relative;
    width: 100%;
    padding-bottom: 66.67%; /* 3:2 比例 */
    overflow: hidden;
    background-color: #f1f5f9;
}

.card-cover img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.event-card:hover .card-cover img {
    transform: scale(1.05);
}

.card-status {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    backdrop-filter: blur(4px);
}

.card-status.ongoing {
    background: rgba(37, 99, 235, 0.9);
}

.card-status.ended {
    background: rgba(100, 116, 139, 0.9);
}

.card-body {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 12px 0;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.card-meta {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.meta-item i {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* 响应式适配 */
@media (max-width: 1200px) {
    .event-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .event-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .event-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
        padding: 24px 0;
    }
    
    .filter-section {
        overflow-x: auto;
        padding-bottom: 8px;
        margin-bottom: 24px;
    }
    
    .filter-tabs {
        flex-wrap: nowrap;
    }
    
    .filter-tab {
        white-space: nowrap;
    }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 0;
    color: var(--text-muted);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--border-color);
}

/* 翻页 */
.pagination {
    margin-top: 40px;
    display: flex;
    justify-content: center;
}