:root{--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--fs-xs: .75rem;--fs-sm: .875rem;--fs-base: 1rem;--fs-lg: 1.125rem;--fs-xl: 1.25rem;--fs-2xl: 1.5rem;--fs-3xl: 2rem;--fs-4xl: 2.5rem;--fw-normal: 400;--fw-medium: 500;--fw-semibold: 600;--fw-bold: 700;--lh-tight: 1.2;--lh-normal: 1.6;--lh-relaxed: 1.8;--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-primary-darker: #1e40af;--color-secondary: #64748b;--color-secondary-dark: #475569;--color-success: #10b981;--color-warning: #f59e0b;--color-error: #ef4444;--color-bg: #f0f4f8;--color-surface: #ffffff;--color-text: #1a1a1a;--color-text-muted: #64748b;--color-border: #e1e4e8;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-xl: 12px;--shadow-sm: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .35s ease}*{margin:0;padding:0;box-sizing:border-box}button{font-family:inherit;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--color-bg);color:var(--color-text);line-height:var(--lh-normal);font-size:var(--fs-base)}#app{max-width:1200px;margin:0 auto;padding:var(--space-lg)}header{margin-bottom:var(--space-2xl)}.header-content{display:flex;justify-content:space-between;align-items:center;gap:var(--space-lg)}.header-content>div:first-child{flex:1;text-align:center}header h1{color:var(--color-text);margin-bottom:var(--space-sm);font-size:var(--fs-4xl);font-weight:var(--fw-bold)}header p{color:var(--color-text-muted);font-size:var(--fs-lg)}section{background:var(--color-surface);border-radius:var(--radius-xl);padding:var(--space-lg);margin-bottom:var(--space-lg);box-shadow:var(--shadow-sm);border:1px solid rgba(0,0,0,.05)}h2{color:var(--color-text);margin-bottom:var(--space-md);font-size:var(--fs-xl);font-weight:var(--fw-semibold)}.primary-btn,.secondary-btn{padding:var(--space-md) var(--space-xl);border:none;border-radius:var(--radius-lg);font-size:var(--fs-lg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Helvetica Neue,sans-serif;cursor:pointer;transition:all var(--transition-base);margin-right:var(--space-sm);position:relative;overflow:hidden}.primary-btn{background-color:var(--color-primary);color:#fff;box-shadow:0 4px 14px #2563eb40;font-weight:var(--fw-semibold);font-size:var(--fs-lg);padding:var(--space-md) var(--space-xl);letter-spacing:.5px;text-transform:uppercase;border:2px solid transparent;background-image:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);animation:pulse 2s ease-in-out infinite}.primary-btn:hover:not(:disabled){background-image:linear-gradient(135deg,#1d4ed8,#1e40af);box-shadow:0 6px 20px #2563eb59;transform:translateY(-2px)}.primary-btn:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 8px #2563eb40}.secondary-btn{background-color:#64748b;color:#fff;box-shadow:0 1px 3px #64748b33;font-weight:500}.secondary-btn:hover:not(:disabled){background-color:#475569;box-shadow:0 4px 6px #64748b40;transform:translateY(-1px)}button:disabled{opacity:.5;cursor:not-allowed;animation:none;transform:none!important}.primary-btn:disabled{background-image:none;background-color:#94a3b8;box-shadow:none}.hidden{display:none}.external-provider{display:flex}#progress-container{display:flex;flex-direction:column;gap:var(--space-md)}.progress-item{padding:var(--space-md);background:#f8f9fa;border-radius:var(--radius-md);border-left:4px solid var(--color-border);transition:all var(--transition-slow)}.progress-item.active{background:#e3f2fd;border-left-color:#3498db;box-shadow:0 2px 8px #3498db1a}.progress-item.completed{background:#f0fdf4;border-left-color:#16a34a}.progress-item.error{background:#ffebee;border-left-color:#e74c3c}.progress-item>div:first-child{display:flex;align-items:center;gap:10px}.status-icon{font-size:20px;display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px}.status-icon.pending{color:#95a5a6}.status-icon.active{color:#3498db;animation:spin 2s linear infinite}.status-icon.success{color:var(--color-success)}.status-icon.error{color:var(--color-error)}@keyframes pulse{0%{box-shadow:0 4px 14px #2563eb40}50%{box-shadow:0 4px 20px #2563eb66}to{box-shadow:0 4px 14px #2563eb40}}.ai-analysis-section{margin-top:30px}.ai-analysis-card{background:#f8f9fa;border:2px dashed #3498db;border-radius:8px;padding:20px}.ai-analysis-card h3{margin-top:0;color:#2c3e50}.ai-options{margin:15px 0;display:flex;gap:20px}.ai-options label{display:flex;align-items:center;gap:5px;cursor:pointer}#ai-loading{text-align:center;padding:20px;color:#666}.spinner{display:inline-block;animation:spin 2s linear infinite}#ai-results{margin-top:20px;padding-top:20px;border-top:1px solid #ddd}.ai-analysis-content{background:#fff;padding:15px;border-radius:4px;margin:10px 0}.ai-analysis-content pre{background:#2c3e50;color:#ecf0f1;padding:10px;border-radius:4px;overflow-x:auto}.ai-metadata{margin-top:10px;color:#7f8c8d;font-style:italic}.ai-actions{margin-top:15px;display:flex;gap:10px}.spinner{width:20px;height:20px;border:2px solid #e1e4e8;border-top-color:#2563eb;border-radius:50%;animation:spin .8s linear infinite}.test-options{margin-top:20px;padding-top:20px;border-top:1px solid #e5e7eb}.checkbox-label{display:flex;align-items:center;margin-bottom:12px;cursor:pointer;font-size:15px;color:#4b5563;transition:color .2s ease}.checkbox-label:hover{color:#1f2937}.checkbox-label input[type=checkbox]{width:18px;height:18px;margin-right:10px;cursor:pointer;accent-color:#2563eb}.checkbox-label span{-webkit-user-select:none;user-select:none}.sub-progress{margin-top:10px;margin-left:30px;font-size:14px;color:#666}.turn-test{display:flex;align-items:center;gap:8px;padding:4px 0}.turn-icon{font-size:16px;display:inline-flex;align-items:center;justify-content:center;width:20px;height:20px}.turn-icon.pending{color:#95a5a6}.turn-icon.active{color:#3498db;animation:spin 2s linear infinite}.turn-icon.success{color:#27ae60}.turn-icon.error{color:#e74c3c}#candidate-types{margin-top:5px;font-size:12px}#media-progress div{padding:2px 0}#results-container{background:#f8f9fa;padding:15px;border-radius:4px;margin-bottom:15px;font-family:monospace;white-space:pre-wrap;max-height:400px;overflow-y:auto}#share-link{margin-top:15px;display:flex;flex-direction:column;gap:10px}.share-link-container{display:flex;gap:10px;align-items:center;width:100%;max-width:600px}#share-status{margin-bottom:10px;color:#666;font-size:14px}#share-url{flex:1;padding:12px 16px;border:1px solid #ddd;border-radius:6px;font-family:monospace;font-size:14px;min-width:0;background-color:#f8fafc;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}#copy-link{padding:14px 28px;background-color:#2563eb;color:#fff;border:none;border-radius:8px;cursor:pointer;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-weight:600;font-size:16px;transition:all .2s ease;white-space:nowrap;box-shadow:0 3px 10px #2563eb33;background-image:linear-gradient(135deg,#2563eb,#1d4ed8);text-transform:uppercase;letter-spacing:.3px}#copy-link:hover{background-image:linear-gradient(135deg,#1d4ed8,#1e40af);transform:translateY(-1px);box-shadow:0 4px 15px #2563eb4d}#copy-link:active{transform:translateY(0);box-shadow:0 2px 6px #2563eb33}#debug-section{margin-top:40px}#debug-section h2{font-size:1.1em;color:#64748b;margin-bottom:10px;display:flex;align-items:center;cursor:pointer;-webkit-user-select:none;user-select:none}#debug-section h2:before{content:"▶";margin-right:8px;font-size:.8em;transition:transform .2s ease}#debug-section.expanded h2:before{transform:rotate(90deg)}#debug-log{background:#1e293b;color:#e2e8f0;padding:16px;border-radius:8px;font-family:SF Mono,Monaco,Consolas,monospace;font-size:12px;max-height:200px;overflow-y:auto;white-space:pre-wrap;border:1px solid #334155;line-height:1.5;margin-bottom:var(--space-md)}#copy-debug-log{margin-top:0}.route-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:var(--space-md);margin-top:var(--space-md);align-items:start}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.route-card{background:var(--color-surface);border:2px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-md);box-shadow:var(--shadow-sm);transition:all var(--transition-slow);position:relative;overflow:hidden;display:flex;flex-direction:column}.route-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:#e1e4e8;transition:background .3s ease}.route-card.testing{border-color:#2563eb;background:#eff6ff;box-shadow:0 4px 12px #2563eb26}.route-card.testing:before{background:linear-gradient(90deg,#2563eb,#60a5fa,#2563eb);background-size:200% 100%;animation:shimmer 1.5s ease-in-out infinite}.route-card.success{border-color:#16a34a;background:#f0fdf4;box-shadow:0 4px 12px #16a34a1a}.route-card.success:before{background:#16a34a}.route-card.failed{border-color:#dc2626;background:#fef2f2;box-shadow:0 4px 12px #dc26261a}.route-card.failed:before{background:#dc2626}.route-card h4{margin:0 0 12px;font-size:15px;font-weight:600;color:#1a1a1a;display:flex;align-items:center;gap:10px;padding-bottom:12px;border-bottom:1px solid #e8e8e8}.route-card .status-icon{width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:16px;background:#f0f2f5;flex-shrink:0;box-shadow:0 1px 3px #00000014}.route-card.testing .status-icon{background:linear-gradient(135deg,#e3f2fd,#bbdefb);color:#1976d2;box-shadow:0 2px 8px #1976d240}.route-card.success .status-icon{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);color:#388e3c;box-shadow:0 2px 8px #388e3c40}.route-card.failed .status-icon{background:linear-gradient(135deg,#ffebee,#ffcdd2);color:#d32f2f;box-shadow:0 2px 8px #d32f2f40}.route-card .metrics{font-size:14px;color:#5a6c7d;line-height:1.8;flex:1;display:flex;flex-direction:column;gap:4px}.route-card .metric-row{display:flex;justify-content:space-between;align-items:center;margin:4px 8px;padding:8px 12px;background:#fafbfc;border:1px solid #e8ecef;border-radius:6px;transition:all .2s ease;min-height:36px}.route-card .metric-row:hover{background:#f4f6f8;border-color:#d8dee4;transform:translate(2px)}.route-card .metric-row:first-child{margin-top:2px}.route-card .metric-row:last-child{margin-bottom:8px}.route-card .metric-label{font-weight:500;color:#495057;font-size:13px;display:flex;align-items:center;gap:6px;flex:0 0 120px;margin:0 3px}.route-card .metric-value{font-family:SF Mono,Monaco,Consolas,monospace;color:#1a1a1a;font-weight:600;font-size:13px;padding:2px 8px;background:#fff;border-radius:4px;border:1px solid #e1e4e8;white-space:nowrap;margin:0 3px}.route-card .metric-value.excellent{color:#15803d;background:#f0fdf4;border-color:#bbf7d0}.route-card .metric-value.good{color:#1e40af;background:#eff6ff;border-color:#bfdbfe}.route-card .metric-value.fair{color:#d97706;background:#fffbeb;border-color:#fde68a}.route-card .metric-value.poor{color:#dc2626;background:#fef2f2;border-color:#fecaca}.route-card .test-duration{margin-top:10px;padding-top:10px;border-top:1px solid #e1e4e8;font-size:12px;color:#7f8c8d;text-align:center;font-style:italic}.validation-section{margin:20px 0;padding:15px;background-color:#f5f5f5;border-radius:8px;border:1px solid #ddd}.validation-section h3{margin:0 0 10px;color:#666;font-size:1.1em}.validation-section label{display:flex;align-items:center;gap:8px;cursor:pointer;font-weight:400}.validation-section input[type=checkbox]{cursor:pointer}#validation-scenarios{margin-top:15px;display:flex;gap:10px;align-items:center}#scenario-select{flex:1;padding:8px;border:1px solid #ddd;border-radius:4px;background-color:#fff;font-size:14px}#apply-scenario{padding:8px 16px;font-size:14px}@media (max-width: 480px){header h1{font-size:1.5rem}header p{font-size:.9rem}.route-cards{grid-template-columns:1fr}.route-card .metric-label{flex:0 0 80px;font-size:12px}.route-card .metric-value{font-size:12px}button,input[type=checkbox],select{min-height:44px}.checkbox-label{min-height:44px;align-items:center}}@media (max-width: 768px){#app{padding:10px}section{padding:15px}.primary-btn,.secondary-btn{display:block;width:100%;margin-bottom:10px}#validation-scenarios{flex-direction:column}#scenario-select{width:100%}.share-link-container{flex-direction:column;align-items:stretch}#share-url{width:100%;font-size:13px;padding:10px 12px}#copy-link{width:100%;margin-left:0}.route-cards{grid-template-columns:1fr;gap:12px}.route-card{padding:14px}.route-card h4{font-size:16px}.route-card .metrics{font-size:13px}.route-card .metric-row{flex-wrap:wrap;gap:4px}.route-card .metric-label{flex:0 0 100px}.header-content{flex-direction:column;text-align:center}header h1{font-size:1.8rem}header p{font-size:1rem}header .language-switcher,header .language-selector{position:static;margin-top:15px}}@media (min-width: 769px) and (max-width: 1024px){#app{padding:15px}.header-content{flex-direction:row}header h1{font-size:2.2rem}.route-cards{grid-template-columns:repeat(2,1fr)}.primary-btn{font-size:17px;padding:14px 28px}}@media (min-width: 1200px){#app{max-width:1400px}.route-cards{grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:20px}section{padding:28px}}.language-switcher,.language-selector{display:flex;gap:8px}.lang-btn,.lang-button{background:transparent;border:1px solid #ddd;padding:6px 14px;border-radius:6px;cursor:pointer;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Helvetica Neue,sans-serif;font-size:14px;font-weight:500;transition:all .2s;color:#333;min-width:50px;text-align:center}.lang-btn:hover,.lang-button:hover{background:#f8f9fa;border-color:#999;transform:translateY(-1px)}.lang-btn.active,.lang-button.active{background:#2563eb;color:#fff;border-color:#2563eb}header .language-switcher,header .language-selector{position:absolute;top:20px;right:20px}.language-switcher{position:relative;display:inline-block}.lang-dropdown{position:absolute;top:100%;right:0;margin-top:4px;background:#fff;border:1px solid #e0e0e0;border-radius:6px;box-shadow:0 4px 12px #00000026;min-width:140px;z-index:1000}.lang-option{display:flex;align-items:center;gap:10px;width:100%;padding:10px 16px;background:none;border:none;cursor:pointer;font-size:14px;color:#333;text-align:left;transition:background .2s}.lang-option:first-child{border-radius:5px 5px 0 0}.lang-option:last-child{border-radius:0 0 5px 5px}.lang-option:hover{background:#f5f5f5}.lang-option.active{background:#e8f4fd;color:#2563eb;font-weight:500}.lang-flag{font-size:18px;line-height:1}.lang-code{font-weight:500}.lang-arrow{transition:transform .2s}.lang-name{flex:1}