/**
 * 问卷调查结果分析器 - 样式文件
 */

/* CSS 变量 */
:root {
    --bg-primary: #f0f4f8;
    --bg-card: #ffffff;
    --bg-input: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* 顶部标题 */
.header {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    color: white;
}

.header h1 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.subtitle {
    opacity: 0.9;
    font-size: 1rem;
}

/* 步骤卡片 */
.step-section {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-color);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
}

.step-header h2 {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.step-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* 表单 */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

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

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-input);
    transition: 0.2s;
}

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

.form-group textarea {
    min-height: 300px;
    resize: vertical;
    font-family: inherit;
    line-height: 1.6;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #94a3b8;
}

/* 结果信息 */
.result-info {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    padding: 16px;
    color: #1e40af;
}

.result-info strong {
    color: var(--color-primary);
}

/* 结果容器 */
.results-container {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* 维度区块 */
.dimension-block {
    background: var(--bg-input);
    border-radius: 8px;
    padding: 20px;
    border: 1px solid var(--border-color);
}

.dimension-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary);
}

/* 表格样式 */
.result-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 16px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.result-table th {
    background: var(--color-primary);
    color: white;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
}

.result-table td {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
}

.result-table tr:last-child td {
    border-bottom: none;
}

.result-table tr:hover td {
    background: #f8fafc;
}

.result-table .question-cell {
    font-weight: 500;
    color: var(--text-primary);
}

.result-table .option-cell {
    color: var(--text-secondary);
}

.result-table .count-cell {
    text-align: center;
    font-weight: 600;
    color: var(--color-primary);
}

.result-table .percent-cell {
    text-align: center;
    font-weight: 600;
}

/* 分析文字 */
.analysis-text {
    background: white;
    border-radius: 8px;
    padding: 16px;
    line-height: 1.8;
    color: var(--text-primary);
    border-left: 4px solid var(--color-primary);
    text-indent: 2em;
}

/* 按钮 */
.step-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.2s;
    box-shadow: var(--shadow);
}

.btn-icon {
    font-size: 1.1rem;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-chart {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
}

.btn-chart:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-input);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    box-shadow: none;
}

.btn-outline:hover {
    background: var(--bg-input);
    color: var(--text-primary);
}

/* 加载状态 */
.loading-section {
    text-align: center;
    padding: 40px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* 错误提示 */
.error-section {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--border-radius);
    padding: 16px 24px;
    margin-bottom: 20px;
}

.error-content {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-danger);
}

.error-icon {
    font-size: 1.5rem;
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 响应式 */
@media (max-width: 640px) {
    .container {
        padding: 12px;
    }
    
    .header {
        padding: 30px 16px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .step-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .result-table {
        font-size: 0.9rem;
    }
    
    .result-table th,
    .result-table td {
        padding: 8px 10px;
    }
}

/* 饼状图区域 */
.charts-section {
    margin-top: 32px;
    padding-top: 32px;
    border-top: 2px dashed var(--border-color);
}

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

.charts-header h3 {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.chart-item {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid var(--border-color);
}

.chart-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.5;
}

.chart-title .dimension-tag {
    display: inline-block;
    background: var(--color-primary);
    color: white;
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-right: 8px;
}

.chart-canvas-wrapper {
    position: relative;
    height: 260px;
}

.charts-actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    justify-content: center;
}

/* 自动填入提示 */
.auto-fill-tip {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 1px solid #f59e0b;
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 16px;
    color: #92400e;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.3s;
}

.auto-fill-tip .tip-icon {
    font-size: 1.2rem;
}

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

.step-section,
.dimension-block {
    animation: fadeIn 0.4s ease forwards;
}