:root{color-scheme:light dark;--bg:#f5f2ea;--panel:#fffdf7;--text:#18211d;--muted:#69736d;--line:#d9ddd7;--accent:#0b6b4f;--accent2:#dcefe7;--danger:#a33a31;--shadow:0 18px 50px #18332820;font:16px/1.5 Inter,ui-sans-serif,system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:300px;padding:20px;background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;gap:18px;z-index:20;overflow:auto}.brand-row,.topbar,.nav-row,.row-actions{display:flex;align-items:center}.brand-row,.nav-row{justify-content:space-between}.brand{font-size:1.5rem;font-weight:800;color:var(--text);text-decoration:none}.shell{margin-left:300px;min-height:100vh;display:grid;grid-template-rows:auto 1fr auto}.topbar{gap:14px;padding:14px 24px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--panel) 90%,transparent);position:sticky;top:0;z-index:10}.topbar h1{font-size:1.1rem;margin:0}.eyebrow{font-size:.75rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.chat-main{width:min(820px,100%);margin:auto;padding:28px 22px}.messages{display:flex;flex-direction:column;gap:14px}.message{max-width:78%;padding:14px 17px;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:0 5px 20px #1833280c}.message.user{align-self:flex-end;background:var(--accent);color:white;border-color:transparent}.message p{margin:.35rem 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.variant{margin-top:12px;padding:13px;border:1px solid var(--line);border-radius:14px;background:var(--bg)}.variant h3{margin:0}.variant small{display:block;color:var(--muted);margin:.4rem 0}.composer{position:sticky;bottom:0;display:flex;gap:10px;padding:16px max(20px,calc((100% - 820px)/2));background:var(--panel);border-top:1px solid var(--line)}textarea{flex:1;resize:none;min-height:48px;max-height:140px;padding:12px;border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--text);font:inherit}.primary,.secondary,.examples button,.nav-open,.mini,.icon-button{font:inherit;cursor:pointer;border-radius:12px}.primary{border:0;background:var(--accent);color:white;padding:11px 16px;font-weight:700}.secondary{border:1px solid var(--line);background:var(--panel);color:var(--text);padding:10px 15px}.wide{width:100%}.icon-button,.mini{border:1px solid var(--line);background:transparent;color:var(--text);padding:6px 10px}.nav-list{display:flex;flex-direction:column;gap:6px}.nav-row{border-radius:12px}.nav-row.active{background:var(--accent2)}.nav-open{border:0;background:transparent;color:var(--text);padding:9px;text-align:left;display:flex;flex-direction:column;min-width:0;flex:1}.nav-open span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:180px}.nav-open small,.muted{color:var(--muted)}.nav-list>a{color:var(--text);padding:8px;border-radius:10px}.demo-note{margin-top:auto;font-size:.78rem;color:var(--muted)}.status{margin:16px 0;color:var(--accent);font-weight:700}.error{margin:16px 0;color:var(--danger)}.examples{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.examples button{border:1px solid var(--line);background:transparent;color:var(--text);padding:8px 12px}.link-button{display:inline-block;text-decoration:none;margin:10px 8px 0 0}.trip-page{width:min(1080px,calc(100% - 32px));margin:24px auto}.trip-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.panel{padding:20px;border:1px solid var(--line);border-radius:18px;background:var(--panel)}.map-frame{width:100%;height:65vh;border:1px solid var(--line);border-radius:18px}.map-shell{position:relative;height:100vh}.map-canvas{height:100%;background:#dce7df}.map-fallback{position:absolute;inset:20px;pointer-events:none}.map-fallback svg{width:100%;height:100%}.map-layers{position:absolute;top:16px;left:16px;z-index:4;display:grid;gap:6px;min-width:190px;margin:0;padding:10px 12px;border:1px solid var(--line);border-radius:12px;background:color-mix(in srgb,var(--panel) 94%,transparent);box-shadow:var(--shadow)}.map-layers legend{padding:0 5px;font-weight:700}.map-layers label{display:flex;gap:8px;align-items:center;font-size:.85rem}.map-layers label:has(input:disabled){color:var(--muted)}.map-note{position:absolute;left:16px;bottom:16px;z-index:3;background:var(--panel);padding:8px 12px;border-radius:9px;font-size:.78rem}.drawer-overlay{position:fixed;inset:0;background:#0008;z-index:15}.mobile-only{display:none}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.no-js{position:fixed;inset:auto 20px 20px;padding:14px;background:var(--danger);color:white;border-radius:12px;z-index:50}@media(max-width:760px){.sidebar{transform:translateX(-105%);transition:transform .2s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.shell{margin-left:0}.mobile-only{display:block}.message{max-width:90%}.trip-grid{grid-template-columns:1fr}.chat-main{padding:20px 14px}.composer{padding:12px}.topbar{padding:10px 14px}}@media(prefers-color-scheme:dark){:root{--bg:#101713;--panel:#17211c;--text:#edf4ef;--muted:#a5b1aa;--line:#33423a;--accent:#39a77e;--accent2:#224737;--danger:#ff8f83}}