:root{color-scheme:light;--ink:#263e4b;--blue:#2458a9;--line:#d4dfe3;--paper:#fcfdfb;--muted:#566975;--wood:#d3ad78;font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}
*{box-sizing:border-box}body{margin:0}main{max-width:1440px;margin:auto;padding:24px}h1,h2,p{margin-top:0}a{color:var(--blue);text-underline-offset:4px}button,select,input{font:inherit}button,select{border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:7px;min-height:40px;padding:8px 12px}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible,svg a:focus-visible,canvas:focus-visible{outline:3px solid #dbac50;outline-offset:3px}button[aria-pressed=true]{background:var(--blue);color:white;border-color:var(--blue)}button:disabled{opacity:.5;cursor:default}[hidden]{display:none!important}.masthead{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:22px}.masthead>a{flex-shrink:0;font-size:14px}.eyebrow{text-transform:uppercase;font-weight:700;letter-spacing:.12em;font-size:10px;color:var(--muted);margin-bottom:8px}h1{font:500 clamp(26px,4vw,40px)/1.1 Georgia,serif;letter-spacing:-.035em;margin-bottom:8px}h1 span{color:var(--blue)}.disclosure,.hint,.fineprint{font-size:12px;line-height:1.6;color:var(--muted);margin-bottom:0}.toolbar,.options{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;margin-bottom:14px}.switch{display:flex;gap:4px;padding:4px;background:#edf2f5;border-radius:10px}.switch button{border:0;background:transparent;font-size:13px;min-height:36px}.switch button[aria-pressed=true]{background:var(--blue)}.options{align-items:center;justify-content:flex-start;gap:16px}.options label{display:flex;gap:6px;align-items:center;font-size:12px;color:var(--muted)}.options select{font-size:12px;max-width:270px}.check input{accent-color:var(--blue);width:16px;height:16px}.stage{position:relative;height:clamp(360px,58vw,620px);border:1px solid var(--line);border-radius:12px;overflow:hidden;background:#eef2f4}#viewer,#plan{width:100%;height:100%}canvas{width:100%;height:100%;display:block;touch-action:none}#plan svg{width:100%;height:100%;display:block}#plan a{cursor:pointer}#plan a:hover polygon,#plan a:focus polygon{stroke:var(--blue);stroke-width:.06}.stage-tag{position:absolute;top:16px;left:16px;background:#ffffffdf;pointer-events:none;color:#61757e;font-size:9px;letter-spacing:.14em;padding:7px 9px;border-radius:5px}.hint{padding:10px 2px 17px}.room-note{display:grid;grid-template-columns:1fr 2fr;gap:28px;border-block:1px solid var(--line);padding:22px 0}.room-note h2{font:500 22px/1.25 Georgia,serif;margin:0}.room-note>p{font-size:14px;line-height:1.7;margin:0}.fineprint{max-width:960px;margin-top:20px}footer{display:flex;flex-wrap:wrap;gap:20px;font-size:12px;margin-top:18px}#walk-controls{position:absolute;inset:0;pointer-events:none;display:flex;align-items:flex-end;justify-content:space-between;padding:15px}.walk-stops,.move-pad{pointer-events:auto;border-radius:9px;background:#ffffffde;padding:6px}.walk-stops{display:flex;align-items:center;gap:9px;font-size:12px}.move-pad{text-align:center}.move-pad button{width:38px;min-height:36px;padding:4px;touch-action:none}.move-pad>button{margin-bottom:4px}.move-pad div{display:flex;gap:4px}.plan-key{font-size:.17px;fill:#425a67}.guide{max-width:950px}.guide h1{max-width:700px;font-size:clamp(32px,6vw,56px);line-height:1.06;margin:28px 0}.guide p,.guide li{font-size:16px;line-height:1.8}.guide h2{margin-top:38px;font:500 27px/1.2 Georgia,serif}.guide .disclosure{background:#eef3f5;padding:16px 20px;border-left:3px solid var(--blue);font-size:14px}.guide table{border-collapse:collapse;width:100%;font-size:14px;line-height:1.6}.guide th,.guide td{text-align:left;padding:14px 10px;border-bottom:1px solid var(--line);vertical-align:top}.guide th{background:#edf2f5}.table-scroll{overflow:auto}.formula{padding:20px;background:#f3ebdd;border-radius:8px;font-weight:600}.guide footer{border-top:1px solid var(--line);padding-top:20px;margin-top:40px}.load-error{padding:80px 28px;max-width:520px;line-height:1.6}
@media(max-width:650px){main{padding:16px}.masthead{align-items:flex-start;gap:12px}.masthead>a{font-size:11px;max-width:70px}.disclosure{max-width:240px}.toolbar{gap:6px}.switch{width:100%;justify-content:space-between}.switch button{flex:1;padding-inline:8px}.options{gap:8px}.options label:not(.check){justify-content:space-between;width:100%}.options select{width:76%;max-width:none}.stage{height:400px}.room-note{grid-template-columns:1fr;gap:12px}.stage-tag{top:10px;left:10px}.guide th,.guide td{min-width:150px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}