/* 自定义样式 */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    background-color: #f8f9fa;
    font-size: 14px;
    min-height: 100vh;
}

/* 导航栏样式 */
.navbar-brand {
    font-weight: bold;
    font-size: 1.25rem;
}

/* 统一导航栏增强样式 */
.navbar.shadow-sm {
    box-shadow: 0 2px 4px rgba(0,0,0,.1) !important;
}

.navbar-nav .nav-link {
    transition: all 0.3s ease;
    border-radius: 0.375rem;
    margin: 0 0.125rem;
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    font-weight: 600 !important;
}

.dropdown-menu {
    border: none;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
    margin-top: 0.5rem;
}

.dropdown-item {
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background-color: var(--light-color);
    transform: translateX(2px);
}

.dropdown-item i {
    margin-right: 0.5rem;
    width: 1rem;
    text-align: center;
}

/* 统一页面容器 */
.page-container {
    background-color: #f8f9fa;
    min-height: 100vh;
    padding-top: 1rem;
}

.page-title {
    background: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,.05);
}

.page-title h1 {
    margin: 0;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 2rem;
}

/* 卡片样式 */
.card {
    border: none;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    transition: box-shadow 0.3s ease-in-out;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.125);
    font-weight: 600;
}

/* 表格样式 */
.table th {
    border-top: none;
    font-weight: 600;
    color: var(--dark-color);
    background-color: var(--light-color);
}

.table-hover tbody tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

/* 按钮样式 */
.btn {
    border-radius: 0.375rem;
    font-weight: 500;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

/* 表单样式 */
.form-control, .form-select {
    border-radius: 0.375rem;
    border: 1px solid #ced4da;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
}

/* 状态徽章 */
.badge {
    font-size: 0.75em;
    padding: 0.35em 0.65em;
}

.badge-pending {
    background-color: var(--warning-color);
    color: var(--dark-color);
}

.badge-confirmed {
    background-color: var(--success-color);
    color: #fff;
}

.badge-cancelled {
    background-color: var(--danger-color);
    color: #fff;
}

/* 统计卡片 */
.stats-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.stats-card h3 {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.stats-card p {
    margin: 0;
    opacity: 0.9;
}

/* 页面标题 */
.page-header {
    background: white;
    padding: 2rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid #dee2e6;
}

.page-header h1 {
    margin: 0;
    font-weight: 600;
    color: var(--dark-color);
}

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

.login-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    max-width: 400px;
    width: 100%;
}

.login-card .card-header {
    background: var(--primary-color);
    color: white;
    border-radius: 1rem 1rem 0 0;
    text-align: center;
    padding: 2rem;
}

.login-card .card-header h3 {
    margin: 0;
    font-weight: 600;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .stats-card h3 {
        font-size: 2rem;
    }
    
    .page-header {
        padding: 1rem 0;
    }
    
    .page-header h1 {
        font-size: 1.75rem;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 工具提示 */
.tooltip-inner {
    background-color: var(--dark-color);
}

/* 模态框样式 */
.modal-content {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.modal-header {
    background-color: var(--light-color);
    border-bottom: 1px solid #dee2e6;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
}

/* 空状态样式 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--secondary-color);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h4 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* 进度条样式 */
.progress {
    height: 0.5rem;
    border-radius: 0.25rem;
}

.progress-bar {
    border-radius: 0.25rem;
}