:root{--green:#155e4b;--green-dark:#0c4133;--mint:#c9f2dc;--ink:#14251f;--muted:#65766e;--line:#dde8e2;--bg:#f5f8f6;--danger:#b83232}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding-bottom:88px}.topbar{height:70px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100% - 700px)/2));border-bottom:1px solid var(--line);position:sticky;top:0;z-index:3}.brand{font-weight:500;font-size:19px;display:flex;align-items:center;gap:9px}.brand b{font-weight:800}.brand-mark{display:grid;place-items:center;background:var(--green);color:#fff;width:32px;height:32px;border-radius:10px;font-weight:900}main{width:min(700px,100%);margin:auto;padding:28px 20px}.view{display:none}.view.active{display:block}.eyebrow{margin:0 0 8px;color:var(--green);font-size:11px;font-weight:850;letter-spacing:.15em}h1{font-size:34px;letter-spacing:-.04em;margin:0}.intro{color:var(--muted);margin:8px 0 22px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:19px;box-shadow:0 5px 20px #0b302008}.setup-card{display:grid;gap:15px}label{color:var(--ink);font-size:13px;font-weight:750}label span{color:var(--muted);font-weight:500}input,select{display:block;width:100%;margin-top:7px;border:1px solid #cbd9d1;border-radius:10px;background:#fff;padding:13px;font:inherit;color:var(--ink);outline:none}input:focus,select:focus{border-color:var(--green);box-shadow:0 0 0 3px #c9f2dc}.primary-button,.stop-button{border:0;border-radius:11px;padding:15px;font:inherit;font-weight:800;cursor:pointer}.primary-button{background:var(--green);color:#fff;margin-top:4px}.primary-button:disabled{opacity:.55}.privacy-note{color:var(--muted);font-size:12px;line-height:1.4;text-align:center;margin:0}.active-trip{margin-top:20px;background:linear-gradient(135deg,var(--green-dark),var(--green));color:#fff;border:0}.status-row{display:flex;align-items:center;gap:8px;color:var(--mint);font-size:11px;font-weight:850;letter-spacing:.1em}.status-row time{margin-left:auto;color:#fff;font-variant-numeric:tabular-nums}.pulse{background:#78f2b1;width:8px;height:8px;border-radius:50%;box-shadow:0 0 0 5px #78f2b133;animation:pulse 1.5s infinite}.distance{display:flex;align-items:baseline;gap:10px;margin:25px 0 7px}.distance strong{font-size:53px;letter-spacing:-.06em;font-variant-numeric:tabular-nums}.distance span{color:#d9f6e7}.trip-meta{display:flex;justify-content:space-between;border-top:1px solid #ffffff2a;padding-top:13px;color:#d9f6e7;font-size:12px}.stop-button{width:100%;color:var(--danger);background:#fff;margin-top:19px}.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}.summary-grid article{border:1px solid var(--line);background:#fff;border-radius:14px;padding:15px}.summary-grid span{display:block;color:var(--muted);font-size:12px}.summary-grid strong{display:block;font-size:19px;margin-top:5px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fffffff2;backdrop-filter:blur(12px);border-top:1px solid var(--line);display:flex;justify-content:center;gap:min(150px,18vw);padding:8px env(safe-area-inset-right) calc(8px + env(safe-area-inset-bottom)) env(safe-area-inset-left);z-index:3}.nav-item{border:0;background:transparent;color:var(--muted);font:inherit;font-size:11px;display:grid;gap:2px;place-items:center;padding:4px 25px;cursor:pointer}.nav-item span{font-size:23px;line-height:22px}.nav-item.active{color:var(--green);font-weight:800}.view-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:21px}.outline-button{border:1px solid #a9c3b6;border-radius:9px;background:white;color:var(--green);font:inherit;font-size:12px;font-weight:800;padding:9px 11px;cursor:pointer}.history-list{display:grid;gap:11px}.trip-row{display:grid;grid-template-columns:1fr auto;gap:4px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px}.trip-row h2{font-size:15px;margin:0}.trip-row p{font-size:12px;color:var(--muted);margin:5px 0 0}.trip-row strong{text-align:right;color:var(--green);font-size:18px}.trip-row time{font-size:11px;color:var(--muted);align-self:end;text-align:right}.empty{border:1px dashed #b8cbc1;border-radius:14px;padding:30px 20px;text-align:center;color:var(--muted);line-height:1.5}.toast{position:fixed;z-index:5;bottom:94px;left:50%;transform:translate(-50%,20px);opacity:0;pointer-events:none;background:#192f27;color:white;padding:11px 14px;border-radius:10px;font-size:13px;transition:.2s;box-shadow:0 8px 20px #0003}.toast.show{opacity:1;transform:translate(-50%,0)}@keyframes pulse{50%{box-shadow:0 0 0 8px #78f2b100}}@media(max-width:390px){h1{font-size:31px}.distance strong{font-size:45px}.trip-meta{gap:12px}.summary-grid{gap:8px}}