:root{color-scheme:light;color:#202522;font-synthesis:none;--paper:#f9fbfa;--mist:#eef2f0;--graphite:#202522;--metal:#66746b;--oxidized:#a8b0aa;--amber:#d5913d;--line:#2025221f;--page:min(1440px, calc(100% - 56px));background:#eef2f0;font-family:Inter,-apple-system,BlinkMacSystemFont,SF Pro Text,PingFang SC,Noto Sans CJK SC,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--mist);min-width:320px}body{background:radial-gradient(circle at 78% 10%, #ffffffd1, transparent 34rem), var(--mist);min-height:100vh;margin:0}button,input{font:inherit}button,a{color:inherit}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.site-header{width:var(--page);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:24px;min-height:82px;margin:0 auto;display:flex}.wordmark{letter-spacing:-.03em;align-items:center;gap:11px;font-weight:650;text-decoration:none;display:inline-flex}.wordmark-mark{border:1.5px solid;border-radius:50%;width:24px;height:24px;position:relative}.wordmark-mark:after{content:"";background:var(--amber);border-radius:50%;width:8px;height:8px;position:absolute;inset:6.5px}.header-actions{align-items:center;gap:16px;display:flex}.header-actions button{color:#20252294;cursor:pointer;background:0 0;border:0;border-bottom:1px solid #0000;padding:5px 0;font-size:11px}.header-actions button:hover,.header-actions button:focus-visible{color:var(--graphite);border-color:currentColor}.header-note{color:#2025227a;letter-spacing:.04em;font-size:11px}.calculator-shell{width:var(--page);grid-template-columns:minmax(360px,450px) minmax(0,1fr);align-items:stretch;gap:clamp(32px,5vw,88px);min-height:calc(100vh - 82px);margin:0 auto;display:grid}.control-panel{z-index:3;padding:clamp(44px,6vh,76px) 0 64px;position:relative}.eyebrow,.section-label{color:var(--metal);letter-spacing:.16em;margin:0 0 14px;font-family:DIN Alternate,Arial Narrow,sans-serif;font-size:11px;font-weight:700}h1{letter-spacing:-.075em;max-width:420px;margin:0;font-size:clamp(54px,5.2vw,78px);font-weight:650;line-height:.98}.lede{color:#2025229e;max-width:365px;margin:24px 0 0;font-size:15px;line-height:1.7}.calibration-callout{background:#f9fbfa9e;border:1px solid #2025221a;border-radius:18px;justify-content:space-between;align-items:flex-end;gap:18px;margin-top:34px;padding:20px;display:flex}.calibration-callout .section-label{margin-bottom:7px}.calibration-callout h2{letter-spacing:-.03em;margin:0;font-size:17px}.calibration-callout p:last-child{color:#20252285;max-width:250px;margin:7px 0 0;font-size:11px;line-height:1.6}.primary-button{background:var(--graphite);color:var(--paper);cursor:pointer;border:0;border-radius:11px}.calibration-callout .primary-button{flex:none;padding:10px 13px;font-size:11px}.primary-button:hover{background:#3d5145}.primary-button:focus-visible{outline-offset:2px;outline:3px solid #d5913d73}.height-control{border-radius:15px;margin-top:38px;transition:box-shadow .22s}.control-heading{justify-content:space-between;align-items:center;margin-bottom:15px;display:flex}.control-heading label{font-size:14px;font-weight:650}.number-field{align-items:baseline;gap:5px;display:flex}.number-field input{text-align:right;background:0 0;border:0;outline:0;width:72px;padding:0;font-family:DIN Alternate,ui-monospace,monospace;font-size:28px;font-weight:700}.number-field input:focus-visible{box-shadow:0 2px 0 var(--amber)}.number-field span{color:#20252280;font-size:12px}.height-range{appearance:none;cursor:ew-resize;background:0 0;width:100%;height:24px;margin:0}.height-range::-webkit-slider-runnable-track{background:linear-gradient(90deg, var(--graphite), var(--oxidized));height:2px}.offset-row input::-webkit-slider-runnable-track{background:linear-gradient(90deg, var(--graphite), var(--oxidized));height:2px}.height-range::-webkit-slider-thumb{appearance:none;border:5px solid var(--paper);background:var(--amber);border-radius:50%;width:20px;height:20px;margin-top:-9px;box-shadow:0 0 0 1px #2025222e,0 4px 14px #2025222e}.offset-row input::-webkit-slider-thumb{appearance:none;border:5px solid var(--paper);background:var(--amber);border-radius:50%;width:20px;height:20px;margin-top:-9px;box-shadow:0 0 0 1px #2025222e,0 4px 14px #2025222e}.height-range::-moz-range-track{background:var(--oxidized);height:2px}.offset-row input::-moz-range-track{background:var(--oxidized);height:2px}.height-range::-moz-range-thumb{border:4px solid var(--paper);background:var(--amber);border-radius:50%;width:12px;height:12px}.offset-row input::-moz-range-thumb{border:4px solid var(--paper);background:var(--amber);border-radius:50%;width:12px;height:12px}.height-range:focus-visible,.offset-row input:focus-visible{outline:2px solid var(--amber);outline-offset:4px}.range-ends,.offset-ends{color:#20252259;justify-content:space-between;font-family:DIN Alternate,ui-monospace,monospace;font-size:10px;display:flex}.posture-switch{background:#f9fbfa9e;border:1px solid #2025221a;border-radius:15px;grid-template-columns:1fr 1fr;width:100%;height:48px;margin:28px 0 0;padding:4px;transition:box-shadow .22s;display:grid;position:relative}.posture-button{z-index:1;cursor:pointer;background:0 0;border:0;font-size:13px;font-weight:650;position:relative}.posture-button:focus-visible{outline:2px solid var(--amber);outline-offset:-3px;border-radius:11px}.posture-button:disabled{cursor:not-allowed;opacity:.45}.posture-indicator{background:var(--paper);border-radius:11px;transition:transform .48s cubic-bezier(.22,1,.36,1);position:absolute;inset:4px 50% 4px 4px;box-shadow:0 3px 12px #20252217}.posture-switch.is-standing .posture-indicator{transform:translate(calc(100% - 4px))}.calibration-panel{background:#fff9efc7;border:1px solid #d5913d59;border-radius:18px;margin-top:22px;padding:22px}.calibration-panel .section-label{color:#9a601f;margin-bottom:7px}.calibration-panel h2{letter-spacing:-.04em;margin:0;font-size:25px}.calibration-panel p:not(.section-label){color:#202522a3;margin:9px 0 0;font-size:12px;line-height:1.7}.calibration-actions{justify-content:space-between;gap:12px;margin-top:18px;display:flex}.calibration-actions button{cursor:pointer;border-radius:11px;padding:10px 14px;font-size:11px}.calibration-actions button:not(.primary-button){border:1px solid var(--line);background:0 0}.calibration-actions .primary-button{border:0}.result-heading{justify-content:space-between;align-items:flex-start;margin-top:34px;display:flex}.result-heading .section-label{margin-bottom:6px}.result-heading p:last-child{color:#2025226b;margin:0;font-size:11px}#posture-caption{color:var(--metal);font-size:12px;font-weight:650}.results{border-top:1px solid var(--line);margin-top:14px}.result-card{border-bottom:1px solid var(--line);padding:18px 0 20px;transition:padding .22s,background .22s;position:relative}.result-card.is-active{color:#3d5145;padding-left:12px}.result-card.is-calibration-target{background:#fff9efcc;border-radius:14px;margin-inline:-12px;padding-inline:12px;box-shadow:0 0 0 1px #d5913d47}.result-card:focus-visible{outline:2px solid var(--amber);outline-offset:2px}.result-main{justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.result-copy>span{font-size:12px;font-weight:650;display:block}.result-copy strong{align-items:baseline;gap:6px;margin-top:4px;font-family:DIN Alternate,ui-monospace,monospace;display:flex}.result-copy strong b{letter-spacing:-.04em;font-size:28px}.result-copy strong small{color:#2025226b;font-size:10px}.result-copy p{color:#2025227a;margin:4px 0 0;font-size:10px;line-height:1.45}.result-meta{flex-direction:column;align-items:flex-end;gap:7px;display:flex}.evidence-status{color:#20252285;white-space:nowrap;border:1px solid #2025221c;border-radius:999px;padding:4px 7px;font-size:9px}.evidence-status.is-trend{color:#9a601f;background:#fff9efd1;border-color:#d5913d57}.source-footnote{color:#2025227a;text-underline-offset:3px;font-size:9px}.source-footnote:hover{color:var(--graphite)}.evidence-boundary{color:#20252275;text-align:right;max-width:165px;font-size:8px;line-height:1.45}.offset-control{margin-top:15px}.offset-heading{color:#2025227a;justify-content:space-between;align-items:center;font-size:9px;display:flex}.offset-heading strong{color:var(--metal);font-weight:650}.offset-row{grid-template-columns:32px 1fr 32px;align-items:center;gap:9px;margin-top:5px;display:grid}.offset-row button{border:1px solid var(--line);cursor:pointer;background:#f9fbfa9e;border-radius:9px;width:32px;height:30px;padding:0;font-size:16px}.offset-row button:hover{background:var(--paper)}.offset-row button:focus-visible{outline:2px solid var(--amber);outline-offset:2px}.offset-row input{appearance:none;cursor:ew-resize;background:0 0;width:100%;height:24px;margin:0}.offset-ends{margin-inline:41px;font-size:8px}.observation-note{color:#20252280;margin:14px 0 0;font-size:10px}.stage{isolation:isolate;min-height:780px;transition:box-shadow .22s;position:relative;overflow:hidden}.stage:before{content:"";z-index:-1;aspect-ratio:1;background:#ffffff6b;border-radius:50%;width:min(66vw,930px);position:absolute;top:47%;left:50%;transform:translate(-50%,-50%)}#workstation-canvas{cursor:grab;touch-action:pan-y;width:100%;height:100%;display:block}#workstation-canvas:active{cursor:grabbing}.dimension-label{backdrop-filter:blur(8px);color:#20252273;white-space:nowrap;pointer-events:none;background:#f9fbfacc;border:1px solid #2025221a;border-radius:8px;padding:5px 8px;font-family:DIN Alternate,ui-monospace,monospace;font-size:10px;font-weight:700;position:absolute;top:0;left:0}.dimension-label.is-active{color:#9a601f;background:#fff9efeb;border-color:#d5913d57}.stage-fallback{color:#2025228c;text-align:center;width:240px;line-height:1.7;position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%)}.content-section{width:var(--page);border-top:1px solid var(--line);margin:0 auto;padding:clamp(72px,10vw,148px) 0}.content-section h2{letter-spacing:-.065em;max-width:780px;margin:0;font-size:clamp(36px,5vw,68px);line-height:1.04}.credibility{grid-template-columns:minmax(280px,.9fr) minmax(420px,1.1fr);gap:clamp(40px,8vw,120px);display:grid}.credibility-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.credibility-grid p{margin:0}.credibility-grid strong,.credibility-grid span{display:block}.credibility-grid strong{font-size:13px}.credibility-grid span{color:#2025228c;margin-top:10px;font-size:11px;line-height:1.75}.text-link{width:fit-content;color:var(--metal);text-underline-offset:4px;grid-column:2;margin-top:-34px;font-size:11px}.section-intro{max-width:760px}.section-intro>p:last-child{color:#20252294;max-width:620px;margin:22px 0 0;font-size:13px;line-height:1.8}.evidence-list{gap:18px;margin-top:64px;display:grid}.evidence-card{border:1px solid var(--line);background:#f9fbfa94;border-radius:22px;padding:clamp(24px,4vw,48px);scroll-margin-top:24px}.evidence-card:target{border-color:#d5913d80;box-shadow:0 0 0 4px #d5913d1a}.evidence-card header{grid-template-columns:48px 1fr;align-items:start;gap:18px;display:grid}.evidence-number{color:var(--amber);font-family:DIN Alternate,ui-monospace,monospace;font-size:12px}.evidence-card h3{letter-spacing:-.04em;margin:0;font-size:26px}.evidence-card header p{color:#2025228c;margin:7px 0 0;font-size:12px}.evidence-card dl{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 32px;margin:32px 0 0 66px;display:grid}.evidence-card dl div{border-top:1px solid var(--line);padding:15px 0}.evidence-card dt{color:var(--metal);letter-spacing:.12em;font-size:9px;font-weight:700}.evidence-card dd{margin:7px 0 0;font-size:11px;line-height:1.7}.source-links{grid-template-columns:repeat(3,1fr);gap:10px;margin:28px 0 0 66px;display:grid}.source-links a{border:1px solid var(--line);border-radius:14px;flex-direction:column;align-items:flex-start;min-height:112px;padding:15px;text-decoration:none;display:flex}.source-links a:hover,.source-links a:focus-visible{background:var(--paper);border-color:#20252257}.source-links span{color:var(--amber);letter-spacing:.08em;font-size:8px}.source-links strong{margin-top:12px;font-size:10px}.source-links small{color:#20252280;margin-top:5px;font-size:9px;line-height:1.45}.episode-section{grid-template-columns:minmax(280px,.72fr) minmax(440px,1.28fr);align-items:center;gap:clamp(42px,8vw,120px);display:grid}.episode-copy h2{font-size:clamp(34px,4.2vw,58px)}.episode-copy>p:not(.eyebrow){color:#20252294;margin:22px 0 0;font-size:12px;line-height:1.8}.platform-links{grid-template-columns:repeat(2,1fr);gap:8px;margin-top:26px;display:grid}.platform-links span,.platform-links a{border:1px solid var(--line);border-radius:11px;justify-content:space-between;padding:11px 12px;font-size:10px;display:flex}.platform-links a{text-decoration:none}.platform-links small{color:#20252261}.episode-placeholder{aspect-ratio:16/9;background:linear-gradient(135deg,#ffffff8c,#66746b24);border:1px solid #20252224;border-radius:22px;place-items:center;padding-block:0;display:grid;overflow:hidden}.episode-placeholder>img{object-fit:cover;width:100%;height:100%}.safe-area{aspect-ratio:4/3;text-align:center;border-inline:1px dashed #20252229;place-content:center;height:100%;display:grid}.safe-area span,.safe-area small{display:block}.safe-area span{font-size:12px;font-weight:650}.safe-area small{color:#2025226b;margin-top:7px;font-size:9px}.independent-footer{width:var(--page);border-top:1px solid var(--line);color:#20252275;justify-content:space-between;gap:30px;min-height:82px;margin:0 auto;padding:24px 0;font-size:10px;display:flex}.independent-footer p{margin:0}.onboarding-dialog{width:min(430px,100% - 32px);color:var(--graphite);z-index:10002;background:#f9fbfaf5;border:1px solid #20252229;border-radius:20px;margin:0;padding:28px;position:fixed;inset:auto 24px 24px auto;box-shadow:0 24px 80px #2025223d}.onboarding-dialog::backdrop{backdrop-filter:blur(3px);background:#20252238}.onboarding-dialog h2{letter-spacing:-.04em;margin:0;font-size:28px}.onboarding-dialog>p:not(.eyebrow){color:#20252299;margin:12px 0 0;font-size:12px;line-height:1.75}.onboarding-actions{grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin-top:26px;display:grid}.onboarding-actions button{cursor:pointer;border-radius:10px;min-height:38px;font-size:11px}.onboarding-actions button:first-child{border:1px solid var(--line);background:0 0}.onboarding-actions .primary-button{border:0;justify-self:end;min-width:92px}.onboarding-actions span{color:#2025226b;font-size:9px}.onboarding-target{z-index:10001;position:relative;box-shadow:0 0 0 5px #d5913d5c,0 20px 50px #2025222e}@media (width<=900px){:root{--page:calc(100% - 32px)}.site-header{min-height:70px}.header-note{display:none}.header-actions{gap:12px}.calculator-shell{grid-template-columns:1fr;gap:0;min-height:auto}.control-panel{padding:44px 0 36px}.stage{min-height:min(78vh,680px)}.credibility,.episode-section{grid-template-columns:1fr}.credibility-grid{margin-top:4px}.text-link{grid-column:1;margin-top:0}.source-links{grid-template-columns:1fr}.source-links a{min-height:auto}}@media (width<=560px){.wordmark{font-size:13px}.onboarding-dialog{width:auto;inset:auto 16px 16px}.wordmark-mark{width:20px;height:20px}.wordmark-mark:after{width:7px;height:7px;inset:5px}.header-actions button{font-size:9px}h1{font-size:58px}.calibration-callout{flex-direction:column;align-items:stretch}.calibration-callout .primary-button{width:100%}.stage{min-height:500px}.result-card.is-active{padding-left:0}.credibility-grid{grid-template-columns:1fr}.content-section{padding:72px 0}.content-section h2{font-size:40px}.evidence-card{padding:22px 18px}.evidence-card header{grid-template-columns:32px 1fr;gap:10px}.evidence-card h3{font-size:21px}.evidence-card dl,.source-links{margin-left:42px}.evidence-card dl,.platform-links{grid-template-columns:1fr}.episode-section{gap:32px}.episode-placeholder{border-radius:16px}.independent-footer{flex-direction:column;align-items:flex-start}body.is-calibrating .calculator-shell{flex-direction:column;display:flex}body.is-calibrating .site-header{display:none}body.is-calibrating .stage{z-index:8;background:var(--mist);border-bottom:1px solid var(--line);order:-1;height:38vh;min-height:38vh;position:sticky;top:0}body.is-calibrating .control-panel{padding-top:24px}body.is-calibrating .intro,body.is-calibrating .calibration-callout,body.is-calibrating .height-control,body.is-calibrating .posture-switch{display:none}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
