:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-secondary: #64748b;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--color-bg: #ffffff;--color-bg-alt: #f8fafc;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-light: #64748b;--spacing-xs: .5rem;--spacing-sm: 1rem;--spacing-md: 1.5rem;--spacing-lg: 2rem;--spacing-xl: 3rem;--border-radius: 8px;--border-radius-lg: 12px;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", monospace;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);color:var(--color-text);background-color:var(--color-bg);line-height:1.6;-webkit-font-smoothing:antialiased}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.header{background:var(--color-bg);border-bottom:1px solid var(--color-border);padding:var(--spacing-md) 0;position:sticky;top:0;z-index:100}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--color-primary)}.nav{display:flex;gap:var(--spacing-md)}.nav-link{color:var(--color-text-light);text-decoration:none;font-weight:500;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--color-primary)}.hero{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:var(--spacing-xl) 0;text-align:center}.hero-title{font-size:2.5rem;font-weight:700;margin-bottom:var(--spacing-sm)}.hero-subtitle{font-size:1.25rem;opacity:.9;max-width:700px;margin:0 auto}.section-title{font-size:1.875rem;font-weight:700;margin-bottom:var(--spacing-lg);text-align:center}.seed-cases{padding:var(--spacing-xl) 0;background:var(--color-bg-alt)}.cases-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--spacing-md)}.case-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-lg);padding:var(--spacing-md);cursor:pointer;transition:all .2s}.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-primary)}.case-icon{font-size:2rem;margin-bottom:var(--spacing-sm)}.case-title{font-size:1.25rem;font-weight:600;margin-bottom:var(--spacing-sm)}.case-description{color:var(--color-text-light);font-size:.9rem;margin-bottom:var(--spacing-md);line-height:1.5}.case-tags{display:flex;flex-wrap:wrap;gap:var(--spacing-xs)}.tag{background:var(--color-primary);color:#fff;padding:.25rem .75rem;border-radius:999px;font-size:.75rem;font-weight:500}.custom-query{padding:var(--spacing-xl) 0}.query-form{max-width:800px;margin:0 auto}.form-group{margin-bottom:var(--spacing-md)}.form-label{display:block;font-weight:600;margin-bottom:var(--spacing-xs)}.form-textarea{width:100%;padding:var(--spacing-sm);border:1px solid var(--color-border);border-radius:var(--border-radius);font-family:var(--font-sans);font-size:1rem;resize:vertical}.form-textarea:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px #2563eb1a}.form-hint{margin-top:var(--spacing-xs);font-size:.875rem;color:var(--color-warning)}.btn{padding:.75rem 1.5rem;border:none;border-radius:var(--border-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:var(--spacing-xs)}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-secondary{background:var(--color-bg-alt);color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){background:var(--color-border)}.btn:disabled{opacity:.6;cursor:not-allowed}.results{padding:var(--spacing-xl) 0;background:var(--color-bg-alt)}.results-header{text-align:center;margin-bottom:var(--spacing-lg)}.results-meta{display:flex;justify-content:center;gap:var(--spacing-md);margin-top:var(--spacing-sm);color:var(--color-text-light)}.tier{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--border-radius-lg);padding:var(--spacing-lg);margin-bottom:var(--spacing-md)}.tier-header{margin-bottom:var(--spacing-md);padding-bottom:var(--spacing-sm);border-bottom:2px solid var(--color-border)}.tier-header h4{font-size:1.5rem;margin-bottom:var(--spacing-xs)}.tier-description{color:var(--color-text-light);font-size:.9rem}.tier-content p{margin-bottom:var(--spacing-sm)}.issue-card{background:var(--color-bg-alt);border-radius:var(--border-radius);padding:var(--spacing-md);margin-bottom:var(--spacing-md)}.issue-card h5{font-size:1.25rem;margin-bottom:var(--spacing-sm);color:var(--color-primary)}.issue-description{color:var(--color-text-light);margin-bottom:var(--spacing-md)}.issue-section{margin-top:var(--spacing-md)}.issue-section h6{font-weight:600;margin-bottom:var(--spacing-xs)}.issue-section ul{margin-left:var(--spacing-md);margin-top:var(--spacing-xs)}.issue-section li{margin-bottom:var(--spacing-xs)}.actions-list{margin-left:var(--spacing-md);margin-top:var(--spacing-sm)}.actions-list li{margin-bottom:var(--spacing-xs)}.results-actions{display:flex;justify-content:center;gap:var(--spacing-md);margin-top:var(--spacing-lg)}.stats{padding:var(--spacing-xl) 0}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-md)}.stat-card{text-align:center;padding:var(--spacing-lg);background:var(--color-bg-alt);border-radius:var(--border-radius-lg)}.stat-number{font-size:2.5rem;font-weight:700;color:var(--color-primary);margin-bottom:var(--spacing-xs)}.stat-label{color:var(--color-text-light)}.modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1000;display:none;align-items:center;justify-content:center}.modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#00000080}.modal-content{position:relative;background:var(--color-bg);border-radius:var(--border-radius-lg);max-width:600px;width:90%;max-height:80vh;overflow-y:auto;box-shadow:var(--shadow-lg)}.modal-header{padding:var(--spacing-lg);border-bottom:1px solid var(--color-border)}.modal-title{font-size:1.5rem;font-weight:700}.modal-body{padding:var(--spacing-lg)}.modal-footer{padding:var(--spacing-lg);border-top:1px solid var(--color-border);display:flex;justify-content:flex-end;gap:var(--spacing-sm)}.footer{background:var(--color-text);color:#fff;padding:var(--spacing-lg) 0;text-align:center;margin-top:var(--spacing-xl)}@media (max-width: 768px){.hero-title{font-size:2rem}.cases-grid{grid-template-columns:1fr}.results-meta{flex-direction:column;gap:var(--spacing-xs)}.results-actions{flex-direction:column}}