/* ============================================
   标准化西格玛性能验证图及自动选择质控程序
   样式文件
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Microsoft YaHei", "PingFang SC", sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9fafb;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #374151;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="tel"],
.form-group input[type="date"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    line-height: 1.5;
    transition: all 0.2s ease-in-out;
    background-color: #fff;
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #9ca3af;
}

.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
    background-color: #f3f4f6;
    cursor: not-allowed;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: #ef4444;
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-group .error-message {
    color: #ef4444;
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* 表格样式 */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: #fff;
}

th, td {
    padding: 0.75rem 1rem;
    text-align: left;
    border: 1px solid #e5e7eb;
}

th {
    background-color: #f3f4f6;
    font-weight: 600;
    color: #374151;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

tbody tr {
    transition: background-color 0.15s ease;
}

tbody tr:hover {
    background-color: #f9fafb;
}

tbody tr:nth-child(even) {
    background-color: #fafafa;
}

tbody tr:nth-child(even):hover {
    background-color: #f3f4f6;
}

/* 表格单元格内容 */
.td-sigma {
    font-weight: 600;
}

.td-sigma.excellent {
    color: #059669;
}

.td-sigma.good {
    color: #2563eb;
}

.td-sigma.marginal {
    color: #d97706;
}

.td-sigma.poor {
    color: #dc2626;
}

.td-performance {
    font-weight: 500;
}

.td-performance.excellent {
    color: #059669;
    background-color: #d1fae5;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.td-performance.good {
    color: #2563eb;
    background-color: #dbeafe;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.td-performance.marginal {
    color: #d97706;
    background-color: #fef3c7;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.td-performance.poor {
    color: #dc2626;
    background-color: #fee2e2;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    border-radius: 0.375rem;
    transition: all 0.15s ease-in-out;
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
}

/* 操作按钮 */
.btn-edit {
    color: #2563eb;
    background-color: #eff6ff;
    border-color: #bfdbfe;
}

.btn-edit:hover {
    background-color: #dbeafe;
    border-color: #93c5fd;
}

.btn-delete {
    color: #dc2626;
    background-color: #fef2f2;
    border-color: #fecaca;
}

.btn-delete:hover {
    background-color: #fee2e2;
    border-color: #fca5a5;
}

/* 标签页样式 */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 导航标签 */
.nav-tab {
    position: relative;
    transition: all 0.2s ease;
}

.nav-tab.active {
    color: #2563eb;
    border-bottom-color: #2563eb;
}

/* 模态框样式 */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: #fff;
    border-radius: 0.75rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 32rem;
    width: 100%;
    margin: 1rem;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

/* Toast 消息提示 */
.toast {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    color: #fff;
    font-weight: 500;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    z-index: 100;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background-color: #059669;
}

.toast.error {
    background-color: #dc2626;
}

.toast.warning {
    background-color: #d97706;
}

.toast.info {
    background-color: #2563eb;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: #6b7280;
}

.empty-state-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto 1rem;
    color: #d1d5db;
}

/* 统计卡片 */
.stat-card {
    background-color: #fff;
    border-radius: 0.5rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid #e5e7eb;
}

.stat-card-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-card.excellent {
    border-color: #10b981;
    background-color: #ecfdf5;
}

.stat-card.excellent .stat-card-value {
    color: #059669;
}

.stat-card.good {
    border-color: #3b82f6;
    background-color: #eff6ff;
}

.stat-card.good .stat-card-value {
    color: #2563eb;
}

.stat-card.marginal {
    border-color: #f59e0b;
    background-color: #fffbeb;
}

.stat-card.marginal .stat-card-value {
    color: #d97706;
}

.stat-card.poor {
    border-color: #ef4444;
    background-color: #fef2f2;
}

.stat-card.poor .stat-card-value {
    color: #dc2626;
}

/* 图表容器 */
.chart-container {
    position: relative;
    height: 24rem;
    width: 100%;
}

/* 响应式布局 */
@media (max-width: 640px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    table {
        font-size: 0.75rem;
    }
    
    th, td {
        padding: 0.5rem 0.75rem;
    }
    
    .btn {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
    
    .modal-content {
        margin: 0.5rem;
        max-height: 95vh;
    }
}

@media (max-width: 768px) {
    .nav-tab {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
    
    .chart-container {
        height: 18rem;
    }
}

/* 打印样式 */
@media print {
    header, footer, nav, .btn, .modal-overlay, .toast {
        display: none !important;
    }
    
    .tab-content {
        display: block !important;
    }
    
    body {
        background-color: #fff;
    }
    
    .container {
        max-width: 100%;
    }
    
    table {
        font-size: 10pt;
    }
    
    th, td {
        border: 1px solid #000;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a1a1a1;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 1.25rem;
    height: 1.25rem;
    border: 2px solid #e5e7eb;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin 0.75s linear infinite;
}

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

/* 工具提示 */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-0.5rem);
    padding: 0.5rem 0.75rem;
    background-color: #1f2937;
    color: #fff;
    font-size: 0.75rem;
    border-radius: 0.375rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    z-index: 10;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* 帮助文本 */
.help-text {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.25rem;
}

/* 必填标记 */
.required::after {
    content: " *";
    color: #dc2626;
}

/* 卡片样式 */
.card {
    background-color: #fff;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 1px solid #e5e7eb;
    overflow: hidden;
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid #e5e7eb;
    background-color: #f9fafb;
}

/* 徽章样式 */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.125rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
}

.badge-success {
    background-color: #d1fae5;
    color: #065f46;
}

.badge-info {
    background-color: #dbeafe;
    color: #1e40af;
}

.badge-warning {
    background-color: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background-color: #fee2e2;
    color: #991b1b;
}