/* 主样式文件 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 工具类 */
.hidden {
    display: none !important;
}

.active {
    display: block !important;
}

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

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.login-header {
    text-align: center;
    margin-bottom: 40px;
}

.login-header h1 {
    color: #667eea;
    font-size: 28px;
    margin-bottom: 8px;
}

.login-header h1 i {
    margin-right: 8px;
}

.login-header p {
    color: #666;
    font-size: 14px;
}

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

.login-form label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
}

.input-group {
    position: relative;
}

.input-group i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.input-group input {
    width: 100%;
    padding: 12px 16px 12px 44px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.login-btn i {
    margin-right: 8px;
}

/* 主应用容器 */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 顶部导航 */
.app-header {
    background: white;
    border-bottom: 1px solid #e1e5e9;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 20px;
    font-weight: 600;
    color: #667eea;
}

.logo i {
    margin-right: 12px;
    font-size: 24px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

#user-name {
    color: #666;
    font-weight: 500;
}

.logout-btn {
    padding: 8px 16px;
    background: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
}

.logout-btn:hover {
    background: #e9ecef;
    color: #495057;
}

/* 布局容器 */
.app-wrapper {
    display: flex;
    flex: 1;
}

/* 侧边导航 */
.sidebar {
    width: 240px;
    background: white;
    border-right: 1px solid #e1e5e9;
    padding: 24px 0;
}

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

.nav-item {
    margin-bottom: 4px;
}

.nav-item a {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    color: #666;
    text-decoration: none;
    transition: all 0.3s ease;
}

.nav-item a:hover {
    background: #f8f9fa;
    color: #667eea;
}

.nav-item.active a {
    background: #667eea;
    color: white;
}

.nav-item i {
    width: 20px;
    margin-right: 12px;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e1e5e9;
}

.page-header h2 {
    color: #333;
    font-size: 24px;
    font-weight: 600;
}

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

/* 按钮样式 */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5a6fd8;
}

.btn-outline {
    background: white;
    border: 1px solid #dee2e6;
    color: #666;
}

.btn-outline:hover {
    background: #f8f9fa;
    border-color: #adb5bd;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    background: #f8f9fa;
    color: #667eea;
}

.stat-icon.success {
    background: #d4edda;
    color: #28a745;
}

.stat-icon.warning {
    background: #fff3cd;
    color: #ffc107;
}

.stat-icon.danger {
    background: #f8d7da;
    color: #dc3545;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-label {
    color: #666;
    font-size: 14px;
}

/* 快捷操作 */
.quick-actions {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.quick-actions h3 {
    margin-bottom: 24px;
    color: #333;
    font-size: 18px;
    font-weight: 600;
}

.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.action-btn {
    padding: 20px;
    background: #f8f9fa;
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.action-btn:hover {
    background: white;
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.action-btn i {
    font-size: 24px;
    color: #667eea;
}

.action-btn span {
    color: #333;
    font-weight: 500;
}

/* 加载提示 */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    background: white;
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.loading-spinner i {
    font-size: 32px;
    color: #667eea;
    margin-bottom: 16px;
}

.loading-spinner p {
    color: #666;
    font-size: 14px;
}

/* 消息提示 */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    animation: slideInRight 0.3s ease;
}

.toast-content {
    background: white;
    border-radius: 8px;
    padding: 16px 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
}

.toast-content i {
    font-size: 20px;
    color: #28a745;
}

.toast.error .toast-content i {
    color: #dc3545;
}

.toast.warning .toast-content i {
    color: #ffc107;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 表格样式 */
.table-container {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    margin-bottom: 24px;
}

.orders-table,
.bracelets-table {
    width: 100%;
    border-collapse: collapse;
}

.orders-table th,
.orders-table td,
.bracelets-table th,
.bracelets-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
}

.orders-table th,
.bracelets-table th {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.orders-table td,
.bracelets-table td {
    font-size: 14px;
    color: #666;
}

.orders-table tr:hover,
.bracelets-table tr:hover {
    background: #f8f9fa;
}

/* 状态标签 */
.status-badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    line-height: 1;
}

.status-badge.success {
    background: #d4edda;
    color: #155724;
}

.status-badge.warning {
    background: #fff3cd;
    color: #856404;
}

.status-badge.info {
    background: #d1ecf1;
    color: #0c5460;
}

.status-badge.danger {
    background: #f8d7da;
    color: #721c24;
}

/* 筛选器样式 */
.filter-section {
    background: white;
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid #e1e5e9;
}

.tab-btn {
    padding: 12px 20px;
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    font-size: 14px;
    font-weight: 500;
}

.tab-btn:hover {
    color: #667eea;
}

.tab-btn.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.filter-controls {
    display: flex;
    gap: 16px;
    align-items: end;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.filter-group label {
    font-size: 14px;
    font-weight: 500;
    color: #333;
}

.filter-group select,
.filter-group input {
    padding: 8px 12px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    font-size: 14px;
    min-width: 150px;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.empty-state i {
    font-size: 48px;
    color: #dee2e6;
    margin-bottom: 16px;
}

/* 快速租还页面样式 */
.quick-container {
    max-width: 800px;
    margin: 0 auto;
}

.input-section {
    background: white;
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.input-wrapper {
    position: relative;
    max-width: 400px;
    margin: 0 auto;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.input-wrapper input {
    width: 100%;
    padding: 16px 16px 16px 44px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 18px;
    text-align: center;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.status-display {
    margin-top: 24px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.status-icon i {
    font-size: 24px;
    color: #667eea;
}

.action-result {
    background: white;
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.result-icon i {
    font-size: 48px;
    color: #28a745;
    margin-bottom: 16px;
}

.result-content h3 {
    margin-bottom: 16px;
    color: #333;
}

.action-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 24px;
}

.recent-actions {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.recent-actions h3 {
    margin-bottom: 16px;
    color: #333;
}

.actions-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.action-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    font-size: 14px;
}

.action-item-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.action-item i {
    font-size: 16px;
}

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

.modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid #e1e5e9;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #666;
}

.modal-body {
    padding: 24px;
}

.payment-info {
    margin-bottom: 24px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: 8px;
    text-align: center;
}

.payment-info p {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #333;
}

.payment-info span {
    color: #667eea;
}

.modal-footer {
    padding: 16px 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* 表单样式 */
.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.rent-form {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
    margin-top: 32px;
}

/* 归还页面样式 */
.search-section {
    background: white;
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.search-section .input-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
    position: relative;
}

.search-section .input-wrapper input {
    flex: 1;
    padding: 12px 16px 12px 44px;
}

.search-section .input-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
}

.order-info {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.order-info h3 {
    margin-bottom: 24px;
    color: #333;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-item label {
    font-weight: 500;
    color: #666;
    font-size: 14px;
}

.info-item span {
    color: #333;
    font-size: 16px;
}

.return-actions {
    display: flex;
    gap: 16px;
    justify-content: flex-end;
}

/* 手环状态页面样式 */
.bracelet-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.bracelet-list {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.list-header h3 {
    margin: 0;
    color: #333;
}

/* 操作按钮 */
.action-btn-small {
    padding: 6px 12px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.action-btn-small:hover {
    background: #5a6fd8;
}

.action-btn-small.danger {
    background: #dc3545;
}

.action-btn-small.danger:hover {
    background: #c82333;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .action-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .filter-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .action-buttons {
        flex-direction: column;
    }
    
    .modal-footer {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .app-header {
        padding: 0 16px;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .sidebar {
        width: 180px;
    }
    
    .action-grid {
        grid-template-columns: 1fr;
    }
    
    .input-section {
        padding: 20px;
    }
    
    .form-container {
        padding: 20px;
    }
}