:root{--ink:#172d37;--teal:#007c91;--line:#d6e1e5;--paper:#f4f7f8;--muted:#536973}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.5 Arial,sans-serif}button,select,a{touch-action:manipulation}button,select{font:inherit}button,a,select,summary{outline-offset:4px}button:focus-visible,a:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #007c91}button{cursor:pointer;border:1px solid var(--line);background:white;color:var(--ink);border-radius:7px;padding:10px 14px;min-height:42px}button:hover{background:#edf5f6}button:disabled{opacity:.4;cursor:default}a{color:var(--teal)}.tour-header{min-height:76px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:14px 28px;gap:20px}.logo{text-decoration:none;font-weight:800;color:var(--ink);font-size:30px;letter-spacing:-1.5px;white-space:nowrap}.logo span{color:var(--teal)}.logo small{font-size:8px;letter-spacing:2px;margin-left:15px;color:var(--muted)}.tour-label{font-size:11px;letter-spacing:1.8px}.tour-label span{margin-left:12px;color:var(--muted)}.exit{font-size:13px;text-decoration:none}.tour-shell{display:grid;grid-template-columns:365px minmax(0,1fr);height:calc(100dvh - 76px)}.guide{padding:25px;overflow:auto;border-right:1px solid var(--line);background:#fff}.eyebrow{font-size:10px;font-weight:700;color:var(--teal);letter-spacing:1.6px}h1{font-size:27px;line-height:1.16;letter-spacing:-.6px;margin:12px 0}.lede{font-size:13px;color:var(--muted);margin-bottom:20px}label{display:block;font-size:11px;font-weight:700;margin-bottom:6px}select{width:100%;background:#fff;border:1px solid var(--line);padding:10px;border-radius:6px;color:var(--ink)}.progress{height:3px;background:#e6edef;margin:14px 0 24px}#progress-fill{height:100%;background:var(--teal);transition:width .2s}.step-counter{color:var(--teal);font-size:11px;letter-spacing:1px;font-weight:700}h2{font-size:23px;line-height:1.2;letter-spacing:-.4px;margin:9px 0 13px}.story{color:var(--muted);font-size:14px}.try{border-left:3px solid var(--teal);padding:12px 15px;background:#eef7f8;margin:18px 0}.try b{font-size:10px;letter-spacing:1.4px;color:var(--teal)}.try p{margin:6px 0 0;font-size:14px}.boundary{font-size:12px;color:#765018;background:#fff6e7;padding:10px 12px;border-radius:5px}.guide details{border-top:1px solid var(--line);padding-top:14px;margin-top:20px;font-size:12px}.guide summary{cursor:pointer;font-weight:700}.guide details p{color:var(--muted)}.tour-controls{display:flex;justify-content:space-between;gap:12px;margin-top:22px}.tour-controls button{flex:1}.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.primary:hover{background:#006577}.keys{font-size:10px;color:var(--muted)}.stage{min-width:0;display:flex;flex-direction:column;padding:18px;gap:10px}.stage-toolbar{display:flex;align-items:center;gap:8px;font-size:11px}.stage-toolbar>div{margin-right:auto;display:flex;align-items:center;gap:7px;flex-wrap:wrap}.stage-toolbar button{padding:7px 10px;font-size:11px;min-height:36px}.live-dot{height:7px;width:7px;background:var(--teal);border-radius:50%}#route-label{color:var(--muted)}iframe{width:100%;flex:1;min-height:0;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:0 5px 24px #172d3708}.stage-foot{font-size:10px;color:var(--muted);display:flex;justify-content:space-between;gap:15px}.stage-foot a{text-decoration:none}.expanded .guide{display:none}.expanded .tour-shell{grid-template-columns:1fr}@media(min-width:1600px){.tour-shell{grid-template-columns:395px minmax(0,1fr)}.guide{padding:30px}}@media(max-width:850px){.tour-header{padding:12px 16px;min-height:65px;gap:12px}.tour-label{display:none}.logo{font-size:26px}.logo small{font-size:7px;margin-left:8px}.tour-shell{height:auto;display:flex;flex-direction:column}.guide{padding:20px;border-right:0;border-bottom:1px solid var(--line);overflow:visible}.guide-top h1{font-size:24px}.guide-top .lede{display:none}.guide-top h1 br{display:none}.progress{margin:10px 0 16px}.stage{height:80dvh;min-height:560px;padding:12px}.stage-toolbar{flex-wrap:wrap}.stage-toolbar>div{width:100%}.stage-foot{flex-wrap:wrap;gap:3px}.keys{display:none}.expanded .stage{height:calc(100dvh - 65px);min-height:500px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}