/* 公共样式 */

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --success-color: #06d6a0;
    --danger-color: #ef476f;
    --warning-color: #ffd166;
    --info-color: #06b6d4;
    --light-bg: #f8f9fa;
    --dark-text: #2d3748;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px rgba(0,0,0,0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--dark-text);
    background-color: var(--light-bg);
}

/* 卡片样式 */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    border-radius: 15px 15px 0 0 !important;
    font-weight: 600;
    padding: 1rem 1.5rem;
}

/* 按钮样式 */
.btn {
    border-radius: 10px;
    padding: 0.5rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

.btn-success {
    background-color: var(--success-color);
    border: none;
}

.btn-danger {
    background-color: var(--danger-color);
    border: none;
}

.btn-warning {
    background-color: var(--warning-color);
    border: none;
}

/* 导航栏 */
.navbar {
    background: white;
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 侧边栏 */
.sidebar {
    background: white;
    min-height: calc(100vh - 76px);
    box-shadow: var(--shadow);
    padding: 2rem 0;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
}

.sidebar-menu li {
    padding: 0;
}

.sidebar-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--dark-text);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.1) 0%, transparent 100%);
    border-left-color: var(--primary-color);
    color: var(--primary-color);
}

/* 统计卡片 */
.stat-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--dark-text);
}

.stat-label {
    color: #718096;
    font-size: 0.9rem;
}

/* 表格样式 */
.table {
    background: white;
    border-radius: 15px;
    overflow: hidden;
}

.table thead {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.table tbody tr {
    transition: background 0.3s;
}

.table tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* 徽章 */
.badge {
    border-radius: 8px;
    padding: 0.4rem 0.8rem;
    font-weight: 500;
}

/* 输入框 */
.form-control,
.form-select {
    border-radius: 10px;
    border: 2px solid var(--border-color);
    padding: 0.6rem 1rem;
    transition: all 0.3s;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
}

/* 加载动画 */
.spinner-border {
    width: 2rem;
    height: 2rem;
    border-width: 0.2rem;
}

/* 进度条 */
.progress {
    border-radius: 10px;
    height: 1.2rem;
    background-color: #e2e8f0;
}

.progress-bar {
    border-radius: 10px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        display: none;
    }

    .stat-card {
        margin-bottom: 1rem;
    }
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Toast容器 */
.toast-container {
    z-index: 9999;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: #718096;
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* 图表容器 */
.chart-container {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    min-height: 400px;
}