:root{--bg: #f6f7f9;--panel: #ffffff;--text: #111827;--muted: #6b7280;--line: #e5e7eb;--blue: #2563eb;--red: #dc2626;--orange: #d97706;--green: #059669}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text)}.safety-banner{position:sticky;top:0;z-index:20;background:#7f1d1d;color:#fff;padding:9px 20px;text-align:center;font-weight:700}.app-header{position:sticky;top:0;z-index:10;background:#111827;color:#fff;padding:14px 22px;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.app-header span{display:block;font-size:12px;color:#d1d5db}.nav{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}.nav button,button{border:1px solid var(--line);background:#fff;color:var(--text);border-radius:8px;padding:8px 11px;cursor:pointer}.nav button{background:#1f2937;color:#fff;border-color:#374151}.nav button.active{background:var(--blue);border-color:var(--blue)}button:focus-visible,textarea:focus-visible{outline:3px solid #93c5fd;outline-offset:2px}main{max-width:1180px;margin:0 auto;padding:24px}footer{text-align:center;color:var(--muted);padding:30px}.grid{display:grid;gap:16px;margin:16px 0}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stack{display:grid;gap:10px}.button-row{display:flex;gap:10px;flex-wrap:wrap}.primary-action{background:var(--blue);border-color:var(--blue);color:#fff;font-weight:700}.welcome-panel{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:end;background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;margin-bottom:22px}.welcome-panel h1{margin:0}.lead{max-width:760px;color:#374151;line-height:1.6}.eyebrow{margin:0 0 8px;color:var(--blue);font-weight:800}textarea{width:100%;resize:vertical;border:1px solid var(--line);border-radius:8px;padding:10px;font:inherit}.route-result{margin-top:14px}.error-text{color:var(--red);font-weight:700}.state-message{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px}.state-message.warn{border-color:#fbbf24;background:#fffbeb}.state-message.danger{border-color:#fca5a5;background:#fef2f2}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:18px;box-shadow:0 1px 2px #00000008}.card.locked{border:2px solid #fecaca;background:#fff7f7}.card h3{margin-top:0}.muted{color:var(--muted)}.score{font-size:34px;font-weight:800;color:var(--blue)}.badge{display:inline-block;padding:4px 8px;border-radius:999px;background:#eef2ff;color:#3730a3;font-size:12px;margin:2px 4px 2px 0}.badge.ok{background:#d1fae5;color:#065f46}.badge.warn{background:#fef3c7;color:#92400e}.badge.danger{background:#fee2e2;color:#991b1b}.badge.lock{background:#111827;color:#fff}.button.locked,button.locked{background:#fee2e2;color:#991b1b;border-color:#fecaca;cursor:not-allowed}table{width:100%;border-collapse:collapse;background:#fff;border-radius:12px;overflow:hidden}.table-scroll{overflow-x:auto}th,td{border-bottom:1px solid var(--line);padding:10px;text-align:left;font-size:14px}th{background:#f9fafb}.flow{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:#f9fafb;border:1px dashed var(--line);padding:12px;border-radius:10px;white-space:pre-wrap}@media(max-width:900px){.welcome-panel,.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.app-header{align-items:flex-start;gap:12px;flex-direction:column}main{padding:16px}table{min-width:680px}}