/**
 * 供应链管理教学工具 - 全局样式
 */

body {
    font-family: system-ui, 'Segoe UI', 'Roboto', 'Noto Sans', sans-serif;
    background-color: #f8f9fa;
}

.main-content {
    padding-top: 20px;
    min-height: calc(100vh - 76px);
}

.chart-container {
    height: 400px;
    width: 100%;
}

.nav-link {
    cursor: pointer;
}

.nav-link.active {
    color: #0d6efd !important;
    font-weight: 600;
}

.card {
    margin-bottom: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.table th {
    font-weight: 600;
}

.btn-sm {
    margin-right: 5px;
}

.modal-header {
    background-color: #f8f9fa;
}

.form-label {
    font-weight: 500;
}

.badge {
    font-size: 0.85em;
}

.text-muted {
    color: #6c757d !important;
}

.alert {
    margin-bottom: 20px;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .chart-container {
        height: 300px;
    }
    
    .main-content {
        padding: 10px;
    }
}