.lab{--sidebar-space:0px;--muted:#637281;--line:#dce3e6;--teal:#176b64;--orange:#8f4f28;color:#263340;background:#edf1f3;height:100svh;min-height:840px;position:relative;overflow:hidden}.lab.sidebar-open{--sidebar-space:328px}.lab button,#explanation button{cursor:pointer;color:inherit;border:0}.lab button:disabled{opacity:.45;cursor:default}.lab button:not(:disabled):hover,#explanation button:hover{filter:brightness(.96)}.lab [hidden]{display:none!important}.topbar{z-index:5;align-items:center;gap:15px;display:flex;position:absolute;top:24px;left:24px}.menu-toggle{background:#fff;border-radius:9px;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;display:flex;border:1px solid var(--line)!important}.menu-toggle span{background:#31474f;border-radius:1px;width:18px;height:2px}.brand{color:#53616d;font-size:13px;font-weight:600;text-decoration:none}.help-button{background:#ffffffb3;border-radius:50%;place-items:center;width:36px;height:36px;font-size:16px;display:grid}.menu-backdrop{display:none}.header{top:105px;left:calc(var(--sidebar-space) + 40px);z-index:1;pointer-events:none;position:absolute}.eyebrow{letter-spacing:1px;color:#526b77;margin:0;font-size:11px;font-weight:600}.header h1{letter-spacing:-1.9px;margin:8px 0 0;font-size:clamp(29px,2.8vw,42px);font-weight:650;line-height:1.25}.header h1>span{color:#71908f;margin-left:3px}.intro{color:#526b77;margin:12px 0 0;font-size:13px;line-height:1.6}.view-tools{z-index:2;background:#ffffffb3;border:1px solid #dce3e6;border-radius:9px;gap:2px;padding:4px;display:flex;position:absolute;top:24px;right:24px}.view-button{background:0 0;border-radius:5px;min-height:36px;padding:8px 13px;font-size:12px;font-weight:500;color:#617581!important}.view-button.selected{background:#fff;box-shadow:0 1px 5px #22384012;color:#263f45!important}.icon-button{background:0 0;border-radius:6px;flex:none;place-items:center;width:40px;height:40px;font-size:24px;line-height:1;display:grid;color:#526b77!important}.view-tools .icon-button{border-left:1px solid var(--line);border-radius:0;width:38px;height:36px;margin-left:3px;font-size:21px}#stage{inset:200px 0 268px var(--sidebar-space);position:absolute}#scene,#section{touch-action:none;width:100%;height:100%;display:block}#scene:focus-visible,#section:focus-visible{outline-offset:-4px;outline:3px solid #117b77}.panel{background:#ffffffeb;border:1px solid #fff;border-radius:14px;box-shadow:0 10px 50px #334b5510,0 1px 2px #334b550a}.settings{z-index:3;scrollbar-width:thin;width:300px;padding:22px;position:absolute;top:88px;bottom:24px;left:24px;overflow:auto}.settings-heading{justify-content:space-between;align-items:center;margin:-5px -6px 15px 0;display:flex}.settings-heading h2{letter-spacing:-.8px;margin:0;font-size:21px;font-weight:600}.presets{background:#f1f4f5;border:1px solid #e6ebed;border-radius:7px;gap:5px;margin-bottom:25px;padding:4px;display:flex}.preset{background:0 0;border-radius:4px;flex:1;min-height:38px;padding:8px 0;font-size:12px;color:#526b77!important}.preset.selected{background:#fff;font-weight:600;box-shadow:0 1px 4px #29494f13;color:#295252!important}.control{margin:25px 0}.control label{justify-content:space-between;align-items:baseline;font-size:13px;font-weight:500;display:flex}.control output{color:#31454c;font-variant-numeric:tabular-nums;font-size:20px;font-weight:500}.control output small{color:#526b77;font-size:11px}.control input[type=range]{appearance:none;background:linear-gradient(to right, #6ba5a1 var(--progress,50%), #e0e8eb var(--progress,50%));cursor:pointer;border-radius:3px;width:100%;height:5px;margin:18px 0 13px;display:block}.control input[type=range]::-webkit-slider-thumb{appearance:none;background:#fff;border:3px solid #548e8b;border-radius:50%;width:19px;height:19px;box-shadow:0 1px 3px #25384120}.control input[type=range]::-moz-range-thumb{background:#fff;border:3px solid #548e8b;border-radius:50%;width:13px;height:13px}.range-labels{color:#526b77;justify-content:space-between;font-size:10px;display:flex}.distance-card{background:#eef5f4;border:1px solid #dfebe8;border-radius:7px;margin-top:29px;padding:13px}.distance-card>div{justify-content:space-between;align-items:center;gap:8px;display:flex}.distance-card span{color:#4f716a;font-size:11px}.distance-card strong{color:#246d68;white-space:nowrap;font-size:22px;font-weight:500}.distance-card strong small{font-size:12px}.distance-card>span{margin-top:4px;font-size:10px;display:block}.display-settings{border-top:1px solid #edf0f1;gap:17px;margin-top:23px;padding-top:19px;display:grid}.checkbox-label{color:#526d77;cursor:pointer;align-items:center;gap:8px;font-size:12px;display:flex}.checkbox-label input{accent-color:#397e79;width:17px;height:17px;margin:0}.playback-speed{color:#526d77;justify-content:space-between;align-items:center;gap:8px;font-size:12px;display:flex}.playback-speed select{color:#52666e;cursor:pointer;background:#f5f7f8;border:1px solid #dce5e8;border-radius:5px;max-width:145px;min-height:34px;padding:5px 8px;font-size:11px}.setting-note{color:#526b77;margin:17px 0;font-size:10px;line-height:1.8}.explain-button{background:#f0f4f5;border-radius:6px;justify-content:space-between;align-items:center;width:100%;min-height:44px;padding:11px 12px;font-size:12px;font-weight:500;display:flex;color:#50686f!important;border:1px solid #e6ebed!important}.explain-button>span:last-child{font-size:19px}.results{bottom:145px;right:40px;left:calc(var(--sidebar-space) + 40px);grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;display:grid;position:absolute}.result-card{background:#ffffffb8;border:1px solid #fff;border-radius:9px;min-width:0;padding:15px 17px}.method-heading{align-items:center;gap:8px;display:flex}.method-id{width:23px;height:23px;color:var(--orange);background:#f1dfd4;border-radius:5px;flex:none;place-items:center;font-size:11px;font-weight:600;display:inline-grid}.continuous .method-id{color:var(--teal);background:#d7e9e6}.method-heading h2{margin:0;font-size:13px;font-weight:600}.status{white-space:nowrap;border-radius:4px;margin-left:auto;padding:4px 6px;font-size:10px;font-weight:500}.status.pending{color:#526b77;background:#e9eef0}.status.hit{color:#246b5f;background:#dcf0e8}.status.missed{color:#985027;background:#f9e7d9}.result-card>p{color:#526b77;margin:8px 0 10px 31px;font-size:11px;line-height:1.6}.result-detail{color:#536e7c;font-variant-numeric:tabular-nums;overflow-wrap:anywhere;border-top:1px solid #dde5e780;min-height:28px;padding-top:10px;font-size:11px;line-height:1.6}.playbar{bottom:58px;left:calc((100% + var(--sidebar-space)) / 2);white-space:nowrap;background:#ffffffed;border:1px solid #fff;border-radius:10px;align-items:center;gap:10px;padding:10px 13px;display:flex;position:absolute;transform:translate(-50%);box-shadow:0 6px 20px #2c455c0a}.play-button{background:#2d6c67;border-radius:6px;justify-content:center;align-items:center;gap:9px;min-width:118px;min-height:40px;padding:0 15px;font-size:12px;font-weight:500;display:flex;color:#fff!important}#play-icon{font-size:11px}.step-button{background:0 0;min-height:40px;padding:8px 10px;font-size:12px;color:#526e7b!important}.step-button>span{margin-left:7px;font-size:13px}.time-display{border-left:1px solid var(--line);flex-direction:column;gap:3px;min-width:87px;margin-left:3px;padding-left:15px;display:flex}.time-display span{color:#526b77;letter-spacing:.6px;font-size:9px}.time-display strong{color:#526e7b;font-variant-numeric:tabular-nums;font-size:14px;font-weight:500}.scene-hint{bottom:23px;left:calc((100% + var(--sidebar-space)) / 2);max-width:calc(100% - var(--sidebar-space) - 48px);color:#526b77;text-align:center;margin:0;font-size:10px;line-height:1.7;position:absolute;transform:translate(-50%)}.render-error{color:#765722;background:#fff4db;border-radius:6px;margin:0;padding:10px 13px;font-size:11px;line-height:1.6;position:absolute;top:4px;left:20px;right:20px}.no-script{z-index:2;top:230px;left:calc(var(--sidebar-space) + 40px);color:#765722;background:#fff4db;border-radius:8px;padding:16px;position:absolute;right:40px}#explanation{overscroll-behavior:contain;color:#31474f;background:#fbfcfc;border:1px solid #fff;border-radius:16px;width:min(600px,100% - 32px);max-height:calc(100svh - 40px);margin:auto;padding:25px 34px 32px;overflow:auto;box-shadow:0 30px 120px #172f4533}#explanation::backdrop{backdrop-filter:blur(6px);background:#213a4860}.dialog-top{justify-content:space-between;align-items:center;display:flex}.dialog-top>span{color:#526b77;font-size:11px}#explanation h2{letter-spacing:-1.2px;margin:15px 0 23px;font-size:29px;line-height:1.4}.observation-guide{color:#426b64;background:#edf5f1;border-radius:8px;margin:0 0 27px;padding:15px;font-size:12px;line-height:1.9}.observation-guide b{margin-bottom:3px;display:block}.explanation-step{gap:17px;margin:25px 0;display:flex}.explanation-step>span{color:#4f716a;padding-top:3px;font-size:12px;font-weight:600}.explanation-step h3,.reading-results h3{margin:0 0 8px;font-size:14px;font-weight:600}.explanation-step p,.reading-results p{color:#596f7a;margin:0;font-size:13px;line-height:1.9}.explanation-step p+p{margin-top:9px}.reading-results{border-top:1px solid #dce5e8;margin:27px 0 20px;padding-top:20px}.reading-results p{font-size:12px}.source-link{color:#33776d;text-underline-offset:4px;gap:8px;padding-block:7px;font-size:12px;display:inline-flex}@media (width<=1120px) and (width>=801px){.lab.sidebar-open{--sidebar-space:286px}.settings{width:270px;padding:18px;left:16px}.header{left:calc(var(--sidebar-space) + 24px)}.results{left:calc(var(--sidebar-space) + 24px);gap:8px;right:24px}.result-card{padding:12px}.method-heading{flex-wrap:wrap;gap:6px}.method-heading h2{font-size:12px}.status,.result-card>p{margin-left:0}.intro{font-size:12px}}@media (height<=850px) and (width>=801px){.settings{padding-block:16px}.settings-heading{margin-bottom:10px}.presets{margin-bottom:19px}.control{margin-block:20px}.distance-card{margin-top:22px}.display-settings{margin-top:18px;padding-top:15px}}@media (width<=800px){.lab,.lab.sidebar-open{--sidebar-space:0px;flex-direction:column;height:auto;min-height:100svh;padding:88px 16px 22px;display:flex;overflow:visible}.topbar{z-index:8;gap:12px;position:absolute;top:16px;left:16px;right:16px}.help-button{margin-left:auto}.brand{font-size:13px}.header{order:0;position:static}.header h1{letter-spacing:-1.6px;font-size:31px}.eyebrow{font-size:10px}.intro{margin-top:8px;font-size:11px}.view-tools{order:1;align-self:flex-start;margin-top:16px;position:static}.view-button{padding-inline:12px;font-size:11px}#stage{flex:none;order:2;height:360px;margin:0 -16px;position:relative;inset:auto}.results{order:3;gap:8px;position:static}.result-card{padding:11px}.method-heading{grid-template-columns:22px minmax(0,1fr);gap:5px;display:grid}.method-heading h2{letter-spacing:-.3px;font-size:11px}.method-heading .status{grid-column:2;justify-self:start;margin:0;padding:3px 5px;font-size:9px}.result-card>p{min-height:34px;margin:7px 0 8px;font-size:10px;line-height:1.7}.result-detail{min-height:44px;padding-top:8px;font-size:10px;line-height:1.7}.playbar{order:4;justify-content:center;align-self:center;gap:4px;width:100%;margin:16px 0 10px;padding:8px 6px;position:static;transform:none}.playbar .icon-button{width:33px}.play-button{min-width:95px;padding-inline:10px;font-size:11px}.step-button{padding-inline:6px;font-size:11px}.step-button>span{margin-left:3px;font-size:11px}.time-display{min-width:72px;margin-left:0;padding-left:9px}.time-display strong{font-size:12px}.scene-hint{order:5;max-width:none;font-size:10px;position:static;transform:none}.settings{z-index:7;overscroll-behavior:contain;background:#fff;width:min(320px,100% - 32px);padding:22px;position:fixed;top:76px;bottom:16px;left:16px}.menu-backdrop{z-index:6;background:#243c4860;display:block;position:fixed;inset:0}.render-error{padding:8px 10px;font-size:10px;top:3px;left:16px;right:16px}.no-script{font-size:12px;top:285px;left:16px;right:16px}#explanation{padding:19px 22px 25px}#explanation h2{font-size:26px}.explanation-step{gap:12px}}@media (width<=360px){.lab{padding-inline:12px}#stage{margin-inline:-12px}.result-card{padding:9px}.method-id{width:20px}.method-heading{grid-template-columns:20px minmax(0,1fr);gap:3px}.method-heading h2{font-size:10px}.playbar{gap:2px}.playbar .icon-button{width:28px}.play-button{min-width:84px;padding-inline:7px}.step-button{padding-inline:5px}.time-display{min-width:66px;padding-left:7px}}