/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #f8fafc;
    color: #334155;
    line-height: 1.6;
}

/* 登录页面样式 */
.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    padding: 40px;
    text-align: center;
}

.login-header h1 {
    color: #1e293b;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.login-header p {
    color: #64748b;
    margin-bottom: 32px;
}

.login-form {
    text-align: left;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #374151;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.2s ease;
    background: white;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.login-footer {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #e2e8f0;
    color: #64748b;
    font-size: 14px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    gap: 8px;
}

.btn-primary {
    background: #3b82f6;
    color: white;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    background: transparent;
    color: #64748b;
    border: 2px solid #e2e8f0;
}

.btn-outline:hover {
    background: #f8fafc;
    border-color: #cbd5e1;
}

.btn-danger {
    background: #ef4444;
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 14px;
}

.btn-block {
    width: 100%;
}

/* 警告框 */
.alert {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-error {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

/* 应用布局 */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
    width: 260px;
    background: white;
    border-right: 1px solid #e2e8f0;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid #e2e8f0;
}

.sidebar-header h2 {
    color: #1e293b;
    font-size: 20px;
    font-weight: 700;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    color: #64748b;
    text-decoration: none;
    transition: all 0.2s ease;
    gap: 12px;
}

.nav-item:hover {
    background: #f8fafc;
    color: #3b82f6;
}

.nav-item.active {
    background: #eff6ff;
    color: #3b82f6;
    border-right: 3px solid #3b82f6;
}

/* 主内容区 */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #f8fafc;
}

/* 顶部导航 */
.top-header {
    background: white;
    border-bottom: 1px solid #e2e8f0;
    padding: 24px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left h1 {
    color: #1e293b;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.header-left p {
    color: #64748b;
    font-size: 14px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    color: #64748b;
    font-size: 14px;
}

/* 工具栏 */
.toolbar {
    padding: 24px 32px;
    background: white;
    border-bottom: 1px solid #e2e8f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.search-form {
    flex: 1;
    max-width: 400px;
}

.search-box {
    display: flex;
    gap: 8px;
}

.search-box input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    font-size: 16px;
}

.search-box input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-type-select {
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    background: white;
    font-size: 16px;
    color: #374151;
    min-width: 120px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-type-select:hover {
    border-color: #3b82f6;
}

.search-type-select:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* 搜索结果信息 */
.search-result-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: #f0f9ff;
    border: 1px solid #0ea5e9;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 14px;
    color: #0369a1;
}

.search-type-badge {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.search-type-badge.all {
    background: #dbeafe;
    color: #1e40af;
}

.search-type-badge.remark {
    background: #dcfce7;
    color: #166534;
}

.search-type-badge.filename {
    background: #fef3c7;
    color: #92400e;
}

.result-count {
    margin-left: auto;
    font-weight: 500;
}

/* 内容卡片 */
.content-card {
    flex: 1;
    padding: 32px;
    background: white;
    margin: 24px 32px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 20px;
    color: #64748b;
}

.empty-state i {
    font-size: 64px;
    color: #cbd5e1;
    margin-bottom: 24px;
}

.empty-state h3 {
    color: #374151;
    font-size: 20px;
    margin-bottom: 8px;
}

.empty-state p {
    margin-bottom: 24px;
}

/* 二维码网格 */
.qr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.qr-card {
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.2s ease;
}

.qr-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.qr-image {
    aspect-ratio: 1;
    overflow: hidden;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.qr-info {
    padding: 20px;
}

.qr-info h4 {
    color: #1e293b;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    word-break: break-all;
}

.qr-remark {
    color: #64748b;
    font-size: 14px;
    margin-bottom: 12px;
    min-height: 20px;
}

.qr-remark em {
    color: #94a3b8;
    font-style: normal;
}

.qr-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #94a3b8;
}

.qr-actions {
    padding: 16px 20px;
    border-top: 1px solid #f1f5f9;
    display: flex;
    gap: 8px;
}

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid #e2e8f0;
}

.page-info {
    color: #64748b;
    font-size: 14px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: #1e293b;
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #64748b;
    cursor: pointer;
    padding: 4px;
}

.modal-close:hover {
    color: #374151;
}

.modal form {
    padding: 24px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

/* 图标样式 - 使用Font Awesome CDN */
.icon {
    margin-right: 0.5em;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        order: 2;
    }
    
    .sidebar-nav {
        display: flex;
        overflow-x: auto;
        padding: 0;
    }
    
    .nav-item {
        white-space: nowrap;
        border-right: 1px solid #e2e8f0;
    }
    
    .main-content {
        order: 1;
    }
    
    .top-header {
        padding: 16px 20px;
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .toolbar {
        padding: 16px 20px;
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-form {
        max-width: none;
    }
    
    .content-card {
        margin: 16px 20px;
        padding: 20px;
    }
    
    .qr-grid {
        grid-template-columns: 1fr;
    }
    
    .login-card {
        padding: 24px;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
}

@media (max-width: 480px) {
    .qr-actions {
        flex-direction: column;
    }
    
    .pagination {
        flex-direction: column;
        gap: 12px;
    }
    
    .modal-actions {
        flex-direction: column;
    }
}