:root{--teal:#0f766e;--teal-d:#115e59;--amber:#f59e0b;--ink:#1f2937;--muted:#6b7280;--bg:#f8fafc;--card:#fff;--line:#e5e7eb;--r:14px}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}a{color:var(--teal-d)}img{max-width:100%}main{max-width:760px;margin:0 auto;padding:0 16px 32px}.site-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1000}.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:1.1rem;color:var(--ink);text-decoration:none}.brand b{color:var(--teal);font-weight:800}.site-header nav a{font-weight:600;text-decoration:none}.site-footer{max-width:760px;margin:0 auto;padding:20px 16px 90px;color:var(--muted);font-size:.8rem;border-top:1px solid var(--line)}h1{font-size:1.6rem;line-height:1.2;margin:18px 0 6px}h2{font-size:1.2rem;margin:22px 0 8px}.lede{color:var(--muted);margin:0 0 14px}.crumbs{font-size:.85rem;color:var(--muted);margin-top:14px}.crumbs a{text-decoration:none}.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:16px;margin:12px 0;box-shadow:0 1px 2px #0000000a}.card-link{display:block;text-decoration:none;color:inherit}.card-link:active{transform:scale(.99)}.row{display:flex;align-items:center;justify-content:space-between;gap:10px}.badge{display:inline-block;font-size:.72rem;font-weight:700;padding:3px 9px;border-radius:999px;white-space:nowrap}.badge.live{background:#dcfce7;color:#166534}.badge.prod{background:#fef3c7;color:#92400e}.badge.planned{background:#e5e7eb;color:#374151}.meta{display:flex;flex-wrap:wrap;gap:6px 14px;color:var(--muted);font-size:.85rem;margin-top:6px}.note{background:#ecfeff;border:1px solid #a5f3fc;border-radius:var(--r);padding:12px 14px;font-size:.9rem}.ai-label{background:#fff7ed;border:1px solid #fed7aa;color:#9a3412;border-radius:10px;padding:8px 12px;font-size:.85rem;margin:10px 0}.ai-label a{color:#9a3412;font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:44px;padding:10px 14px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:600;font-size:.92rem;text-decoration:none;cursor:pointer}.btn.primary{background:var(--teal);border-color:var(--teal);color:#fff}.btn[disabled]{opacity:.55;cursor:not-allowed}.btn-row{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}#map{height:42vh;min-height:260px;border-radius:var(--r);border:1px solid var(--line);margin:10px 0;z-index:1}.num-marker{width:28px;height:28px;border-radius:50%;background:var(--teal);color:#fff;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center;border:2px solid #fff;box-shadow:0 1px 4px #0006}.num-marker.locked{background:#9ca3af}.num-marker.current{background:var(--amber);color:#111;transform:scale(1.2)}.you-marker{width:18px;height:18px;border-radius:50%;background:#2563eb;border:3px solid #fff;box-shadow:0 0 0 6px #2563eb40}.stop-card h2{margin:4px 0 2px;font-size:1.3rem}.stop-card .addr{color:var(--muted);font-size:.88rem;margin:0 0 8px}.stop-card .narration p{margin:0 0 10px}.walk-cue{background:#f0fdfa;border-left:4px solid var(--teal);padding:10px 12px;border-radius:8px;margin:10px 0;font-size:.95rem}.lock{background:linear-gradient(180deg,#f9fafb,#f3f4f6);border:1px dashed #cbd5e1;border-radius:var(--r);padding:16px;text-align:center}.lock .icon{font-size:1.8rem}.stop-list{list-style:none;margin:0;padding:0}.stop-list li button{display:flex;width:100%;align-items:center;gap:10px;text-align:left;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;margin:6px 0;font-size:.95rem;color:var(--ink);cursor:pointer;min-height:48px}.stop-list li button[aria-current=true]{border-color:var(--teal);box-shadow:0 0 0 2px #0f766e33}.stop-list .n{flex:0 0 28px;height:28px;border-radius:50%;background:var(--teal);color:#fff;font-weight:800;font-size:13px;display:flex;align-items:center;justify-content:center}.stop-list .locked .n{background:#9ca3af}.stop-list .t{flex:1}.stop-list .d{color:var(--muted);font-size:.8rem;white-space:nowrap}.pager{position:fixed;left:0;right:0;bottom:0;background:#fffffff7;border-top:1px solid var(--line);padding:10px 16px calc(10px + env(safe-area-inset-bottom));display:flex;gap:10px;z-index:1001;max-width:760px;margin:0 auto}.pager .btn{flex:1}.pager .pos{align-self:center;font-weight:700;color:var(--muted);font-size:.9rem;min-width:52px;text-align:center}audio{width:100%;margin:6px 0}.sources{font-size:.78rem;color:var(--muted);word-break:break-word}.small{font-size:.8rem;color:var(--muted)}.city-grid{display:grid;gap:10px}@media(min-width:640px){.city-grid{grid-template-columns:1fr 1fr}h1{font-size:2rem}}.hero{padding:10px 0}.hero h1{font-size:1.9rem}