html,body{height:100%;height:100dvh}body{display:flex;flex-direction:column;overflow:hidden;touch-action:manipulation}.mtop{position:relative;z-index:20;text-align:center;padding:14px 20px 2px;flex:none}.mtop .eyebrow{margin-bottom:4px}.mtop h1{font-family:var(--serif);font-weight:300;font-size:clamp(24px,3.5vw,42px);line-height:1.02;letter-spacing:-.02em}.mtop p{font-size:13px;color:var(--fg-2);max-width:64ch;margin:4px auto 0;line-height:1.45}@media(max-width:600px){.mtop{padding:10px 14px 2px}.mtop p{display:none}}.legend-wrap{position:relative;z-index:20;flex:none;padding:4px 16px 2px;max-width:1440px;margin:0 auto;width:100%}.filter-toolbar{display:flex;flex-wrap:wrap;gap:12px 20px;justify-content:center;align-items:center;padding:2px 0}.filter-group{display:inline-flex;align-items:center;gap:8px}.f-label{font-family:var(--disp);font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3)}.seg-ctrl{display:inline-flex;background:var(--bg-2);border:1px solid var(--line);border-radius:30px;padding:3px;gap:2px}:root[data-theme=light] .seg-ctrl{background:#fff;box-shadow:0 4px 16px -6px #0000000f}.seg-btn{background:transparent;border:none;border-radius:20px;padding:5px 12px;font-family:var(--disp);font-size:11px;font-weight:600;color:var(--fg-2);cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:.18s;white-space:nowrap;user-select:none}.seg-btn .pip{width:7px;height:7px;border-radius:50%;flex:none}.seg-btn .diamond-pip{width:7px;height:7px;background:currentColor;transform:rotate(45deg);flex:none;opacity:.8}.seg-btn .dash-pip{width:12px;height:0;border-top:2px dashed currentColor;flex:none;opacity:.85}.seg-btn:hover{color:var(--fg);background:#ffffff0a}.seg-btn.active{background:var(--fg);color:var(--bg)}:root[data-theme=light] .seg-btn.active{background:var(--fg);color:#fff}.routes-scroller-wrap{display:flex;align-items:center;gap:8px;margin-top:6px;padding-top:4px;border-top:1px solid var(--line);position:relative;overflow:hidden}.routes-label{font-family:var(--disp);font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--fg-3);flex:none}.routes-track{display:flex;gap:6px;overflow-x:auto;overflow-y:hidden;scrollbar-width:none;-webkit-overflow-scrolling:touch;padding:2px 4px}.routes-track::-webkit-scrollbar{display:none}.rchip{cursor:pointer;background:transparent;font-family:var(--disp);font-size:10.5px;font-weight:600;color:var(--fg-2);padding:4px 10px;border-radius:20px;border:1px solid var(--line);display:inline-flex;align-items:center;gap:5px;transition:.18s;white-space:nowrap;user-select:none;flex:none}.rchip .pip{width:6px;height:6px;border-radius:50%;flex:none}.rchip:hover{color:var(--fg);border-color:var(--line-2)}.rchip.active{color:var(--fg);background:#ffffff14;border-color:var(--fg-2)}.rchip.reset{color:var(--fg-3)}@media(max-width:768px){.filter-toolbar{justify-content:flex-start;overflow-x:auto;scrollbar-width:none;flex-wrap:nowrap;padding-bottom:4px}.filter-toolbar::-webkit-scrollbar{display:none}.seg-btn{padding:6px 10px;font-size:10.5px}}.stage{position:relative;z-index:5;flex:1;min-height:0;touch-action:none}#maze{width:100%;height:100%;display:block;cursor:grab;touch-action:none}#maze:active{cursor:grabbing}.edge{stroke-linecap:round;transition:stroke-opacity .25s,stroke-width .25s}.node{cursor:pointer;transition:opacity .22s}.node circle,.node polygon{transition:r .2s,fill-opacity .2s,stroke-opacity .2s,transform .2s}.node:hover circle,.node:hover polygon{filter:drop-shadow(0 0 6px currentColor)}.node-label{pointer-events:none;transition:opacity .2s,transform .2s;transform-origin:0 0;opacity:0}.node-label rect{rx:4px;ry:4px;fill:var(--bg);fill-opacity:.92;stroke:var(--line);stroke-width:.8;backdrop-filter:blur(4px)}:root[data-theme=light] .node-label rect{fill:#fff;fill-opacity:.96;stroke:#0000001f;box-shadow:0 2px 8px #0000000f}.node-label text{font-family:var(--disp);font-size:11.5px;font-weight:600;fill:var(--fg);text-anchor:middle;dominant-baseline:central}.node.landmark .node-label{opacity:.88}.node:hover .node-label,.node.highlighted .node-label{opacity:1!important;transform:scale(1.08)}.node.highlighted .node-label rect{stroke:currentColor;stroke-width:1.2;fill-opacity:.98}.dim{opacity:.04}.dim .node-label{opacity:0}.maze-ctrls{position:absolute;bottom:18px;right:20px;z-index:30;display:flex;flex-direction:column;gap:6px}.maze-ctrls button{width:36px;height:36px;border-radius:10px;background:var(--bg-3);border:1px solid var(--line-2);color:var(--fg);font-family:var(--disp);font-weight:700;font-size:16px;cursor:pointer;display:grid;place-items:center;transition:.2s;box-shadow:0 8px 20px -6px #00000080}:root[data-theme=light] .maze-ctrls button{background:#fff;box-shadow:0 8px 20px -6px #00000026}.maze-ctrls button:hover{background:var(--fg);color:var(--bg);border-color:var(--fg)}.maze-ctrls button#zoom-fit{font-size:11px;text-transform:uppercase;letter-spacing:.05em}.mtip{position:fixed;z-index:40;pointer-events:none;max-width:300px;background:var(--bg-3);border:1px solid var(--line-2);border-radius:13px;padding:13px 15px;opacity:0;transform:translateY(6px);transition:opacity .15s,transform .15s;box-shadow:0 18px 44px -22px #000000d9}:root[data-theme=light] .mtip{background:#fff;box-shadow:0 18px 44px -22px #00000040}.mtip.show{opacity:1;transform:none}.mtip .tk{font-family:var(--disp);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--fg-3);margin-bottom:6px}.mtip .tt{font-family:var(--serif);font-size:16px;color:var(--fg);line-height:1.25;margin-bottom:7px}.mtip .tp{display:flex;flex-wrap:wrap;gap:4px}.mtip .tp span{font-size:10.5px;color:var(--fg-2);border:1px solid var(--line);border-radius:20px;padding:2px 8px;display:inline-flex;align-items:center;gap:4px}.mtip .tp span .pip{width:6px;height:6px;border-radius:50%}.mtip .tgo{margin-top:8px;font-family:var(--disp);font-size:11px;color:var(--fg-3)}.mobile-sheet{position:fixed;bottom:0;left:0;right:0;z-index:50;background:var(--bg-3);border-top:1px solid var(--line-2);border-radius:20px 20px 0 0;padding:16px 20px 28px;transform:translateY(110%);transition:transform .3s var(--ease);box-shadow:0 -12px 40px -10px #000000b3;display:none}:root[data-theme=light] .mobile-sheet{background:#fff;box-shadow:0 -12px 40px -10px #0003}.mobile-sheet.open{transform:translateY(0)}.sheet-handle{width:40px;height:4px;background:var(--line-2);border-radius:4px;margin:0 auto 12px}.sheet-close{position:absolute;top:12px;right:14px;background:none;border:none;color:var(--fg-3);font-size:22px;padding:4px 8px;cursor:pointer}.sheet-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}.sheet-tag{font-family:var(--disp);font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3)}.sheet-title{font-family:var(--serif);font-size:20px;color:var(--fg);line-height:1.25;margin-bottom:10px}.sheet-routes{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}.sheet-routes span{font-size:11px;color:var(--fg-2);border:1px solid var(--line);border-radius:20px;padding:3px 10px;display:inline-flex;align-items:center;gap:5px}.sheet-enter-btn{display:block;width:100%;text-align:center;background:var(--fg);color:var(--bg);font-family:var(--disp);font-size:13px;font-weight:700;padding:12px;border-radius:12px;text-decoration:none;transition:.2s}:root[data-theme=light] .sheet-enter-btn{background:var(--fg);color:#fff}@media(max-width:768px){.mobile-sheet{display:block}.mtip{display:none!important}}.mbar{position:relative;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:6px 20px 10px;flex:none;font-size:12px;color:var(--fg-3)}.mbar a{color:var(--fg-2);border-bottom:1px solid var(--line)}.mbar a:hover{color:var(--fg)}.mbar .home{display:flex;align-items:center;gap:8px;font-family:var(--disp);font-weight:700;font-size:13.5px;color:var(--fg);border:none}.mbar .home .mark{width:16px;height:16px;border-radius:50%;background:conic-gradient(from 200deg,var(--con),var(--orb),var(--way),var(--anch),var(--con))}.mhint{font-family:var(--disp);letter-spacing:.02em}@media(max-width:680px){.mhint{display:none}}@media(max-width:600px){.mbar{flex-wrap:wrap;justify-content:center;row-gap:4px;text-align:center;padding:6px 14px 8px}}details.sources{flex:none;font-size:11px;color:var(--fg-3);padding:0 20px 8px;line-height:1.5}details.sources>summary{cursor:pointer;list-style:none;font-family:var(--disp);font-size:9.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--fg-3);display:inline-flex;align-items:center;gap:6px;user-select:none}details.sources>summary::-webkit-details-marker{display:none}details.sources>summary:after{content:"▸";font-size:9px;transition:transform .18s;display:inline-block}details.sources[open]>summary:after{transform:rotate(90deg)}details.sources .src-list{margin:4px 0 0;display:flex;flex-wrap:wrap;gap:4px 16px}details.sources .src-list li{list-style:none}