/* W441 page-only styles. The shared site header, title and footer remain global. */
#st334Content:has(#aa441){width:86.5%;max-width:1120px;padding-left:0;padding-right:0}
#st334Content:has(#aa441)>.st-master-intro{display:none}
#aa441{--ink:#000066;--text:#536eae;--muted:#637cac;--line:#c9def8;--paper:#fff;--soft:#f0f7ff;--blue:#0768ff;--green:#e2fbee;--green-line:#b2ebd2;--ref-shield-paper:#f5faff;--ref-shield-inner:#e1efff;--ref-shield-layer:#cde4fb;font:14px/1.45 Arial,Helvetica,sans-serif;color:var(--text);background:var(--paper)}
#aa441 *{box-sizing:border-box}#aa441 [hidden]{display:none!important}#aa441 h2,#aa441 h3{color:var(--ink);line-height:1.2;letter-spacing:-.4px;margin:0 0 10px}#aa441 h2{font-size:22px}#aa441 h3{font-size:20px}#aa441 p{margin:7px 0 10px}#aa441 .intro{font:15px/1.4 Arial,Helvetica,sans-serif;color:#06266e;margin:0 8px 10px;padding-top:8px}#aa441 a{color:var(--blue);text-decoration:none}#aa441 a:hover{text-decoration:underline}#aa441 .hint{font-size:12px;line-height:1.45;color:var(--muted)}#aa441 button,#aa441 input,#aa441 select{font:inherit;touch-action:manipulation}#aa441 button{color:var(--blue);background:var(--paper);border:1px solid #89b8ff;border-radius:4px;padding:8px 12px;line-height:1.25;cursor:pointer}#aa441 button:hover{background:var(--soft);border-color:var(--blue)}#aa441 button.primary,#aa441 .toggle .selected,#aa441 .units .selected{color:#fff;background:#0768ff;border-color:#0768ff}#aa441 button:disabled{opacity:.5;cursor:not-allowed}#aa441 :is(button,input,select,a,summary,.error):focus-visible{outline:3px solid #88b9ff;outline-offset:3px}#aa441 [id]{scroll-margin-top:165px}#aa441 .panel{border:1px solid var(--line);background:var(--paper);border-radius:5px;padding:12px;min-width:0}#aa441 input,#aa441 select{width:100%;min-width:0;background:var(--paper);color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:7px 9px;line-height:1.25}#aa441 label{color:var(--ink);font-weight:bold}#aa441 input[aria-invalid=true]{border-color:#b32238}#aa441 .st-reference-notice{display:grid;grid-template-columns:minmax(0,1fr) 185px;gap:12px;align-items:center;padding:10px 16px;border:1px solid var(--line);border-radius:4px;background:linear-gradient(105deg,#f8fafc,#eff6ff);margin:10px 0;min-height:100px}#aa441 .st-reference-copy{min-width:0}#aa441 .st-reference-notice h2{font-size:18px;line-height:1.3;margin:0 0 5px;letter-spacing:-.2px}#aa441 .st-reference-notice p{font-size:12px;line-height:1.5;margin:0}#aa441 .st-reference-notice .reference-disclaimer{margin-top:3px}#aa441 .st-reference-link{display:inline-block;margin-top:4px;font-size:12px}#aa441 .st-reference-seal{align-self:stretch;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding-left:12px;border-left:1px solid var(--line);color:var(--ink)}#aa441 .st-reference-shield{display:block;width:40px;height:44px;flex:none;margin:0 0 3px}#aa441 .st-reference-seal b{font-size:9px;line-height:1.3}#aa441 .st-reference-seal small{font-size:8px;color:var(--muted);margin-top:2px}
#aa441 .modes{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-bottom:10px}#aa441 .mode{display:flex;align-items:center;gap:10px;min-width:0;height:116px;padding:6px 10px;text-align:left;border-color:var(--line);color:var(--ink);overflow:hidden}#aa441 .mode.selected{border-color:#0768ff;box-shadow:inset 0 0 0 1px #0768ff;background:#fbfdff}#aa441 .walk-art{display:block;width:42%;height:100%;max-height:100px;flex:0 0 42%;overflow:hidden}#aa441 .mode>span{min-width:0;flex:1}#aa441 .mode b{display:block;font-size:17px;line-height:1.3;letter-spacing:-.35px}#aa441 .mode small{display:block;color:var(--text);font-size:12px;line-height:1.35;margin-top:5px}
#aa441 .main-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:8px;align-items:stretch}#aa441 .input-panel{display:flex;flex-direction:column}#aa441 .field{display:grid;grid-template-columns:34% minmax(0,1fr);gap:8px;align-items:center;margin-bottom:8px}#aa441 .field label,#aa441 #walkSexLabel{font-size:13px;font-weight:bold;color:var(--ink)}#aa441 .field>div{min-width:0}#aa441 .unit-row{display:flex;gap:6px}#aa441 .unit-row>input{flex:1;min-width:0}#aa441 .units{display:flex;flex:0 0 44%;gap:3px}#aa441 .units button{flex:1;min-width:0;padding:7px 6px;border-color:var(--line)}#aa441 .suffix{display:flex;border:1px solid var(--line);border-radius:4px;align-items:center;min-width:0}#aa441 .suffix input{border:0;flex:1;min-width:0;background:transparent}#aa441 .suffix>span{padding:0 10px;color:var(--ink);font-size:13px}#aa441 .suffix select{flex:0 0 68px;border:0;padding:7px 7px;background:transparent}#aa441 .toggle{display:flex;gap:6px}#aa441 .toggle>button{flex:1;min-width:0;padding:7px 9px;border-color:var(--line)}#aa441 #walkProfile .hint{margin:3px 0 4px}#aa441 .form-actions{display:grid;grid-template-columns:1.1fr .9fr;gap:7px;margin:10px 0}#aa441 .error:empty{margin:0}#aa441 .error:not(:empty){font-size:12px;color:#b32238;padding:9px;border:1px solid currentColor;border-radius:4px}#aa441 .walk-photo{display:block;position:relative;line-height:0;margin:auto 0 0;width:100%;overflow:hidden;border-radius:4px;background:var(--soft)}#aa441 .walk-photo>img:first-child{display:block;width:100%;height:auto;aspect-ratio:3/2;object-fit:cover}#aa441 .watermark{position:absolute;right:9px;bottom:8px;width:96px;max-width:24%;height:auto;opacity:.65;filter:drop-shadow(0 1px 1px #253848);pointer-events:none}
#aa441 .dashboard{display:flex;flex-direction:column}#aa441 .result{background:var(--green);border:1px solid var(--green-line);border-radius:4px;text-align:center;padding:18px 10px 16px;color:var(--ink)}#aa441 .result>b{display:block;font-size:14px;font-weight:400}#aa441 .result>strong{display:block;font-size:72px;line-height:1.12;letter-spacing:-1.5px;margin:5px 0 6px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}#aa441 .result h3{font-size:27px;margin:0 0 6px}#aa441 .result>p{font-size:13px;margin:0;color:var(--text);font-style:italic}#aa441 .metrics{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin-top:10px}#aa441 .metrics>div{border:1px solid var(--line);border-radius:4px;padding:10px;min-width:0}#aa441 .metrics b{display:block;color:var(--ink);font-size:13px}#aa441 .metrics strong{display:block;color:var(--ink);font-size:30px;line-height:1.2;margin:3px 0 2px;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}#aa441 .comparison{border:1px solid var(--line);border-radius:4px;padding:12px;margin-top:14px;flex:1;display:flex;flex-direction:column;justify-content:center;min-height:215px}#aa441 .comparison h3{margin-bottom:18px}#aa441 #walkChart{padding-right:55px}#aa441 .compare-row{margin:0 0 22px}#aa441 .compare-row>span{font-size:12px;color:var(--ink);display:block;margin-bottom:6px}#aa441 .bar-track{position:relative;height:23px;background:repeating-linear-gradient(to right,transparent,transparent calc(33.333% - 1px),var(--line) calc(33.333% - 1px),var(--line) 33.333%)}#aa441 .actual-bar{height:100%;background:#2dbb86;border-radius:4px}#aa441 .predicted-bar{height:100%;background:#299bfa;border-radius:4px}#aa441 .bar-track>b{position:absolute;top:2px;margin-left:7px;white-space:nowrap;font-size:11px;color:var(--ink);font-variant-numeric:tabular-nums}#aa441 .axis{display:flex;justify-content:space-between;font-size:11px;border-top:1px solid var(--line);padding-top:6px;color:var(--text)}#aa441 .profile-strip{text-align:center;background:var(--soft);color:var(--ink);font-size:12px;padding:9px 5px;border-radius:4px;margin:10px 0 0}#aa441 .reference-context{text-align:center;margin:8px 0 0;font-size:11px}#aa441 .export-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:8px 0 0}#aa441 .export-actions button{width:100%;padding:8px 7px}#aa441 .export-status{font-size:11px;margin:6px 0 0}#aa441 .export-status:empty{margin:0}
#aa441 .symptoms{margin-top:10px}#aa441 .symptom-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}#aa441 .symptom-grid>.symptom+div{border-left:1px solid var(--line);padding-left:16px}#aa441 .symptom-top{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px}#aa441 .symptom-top label{font-size:13px}#aa441 .symptom-top>div{display:flex;align-items:center;gap:6px;color:var(--ink)}#aa441 .symptom-top input{width:78px}#aa441 input[type=range]{accent-color:#0768ff;padding:0;border:0;display:block;height:20px;width:100%;background:transparent}#aa441 .scale{display:flex;justify-content:space-between;font-size:10px;color:var(--muted)}#aa441 .symptoms>.hint{text-align:center;font-size:11px;margin:9px 0}#aa441 .safety-note{background:var(--soft);border-radius:4px;padding:7px;text-align:center;font-size:11px;margin:0;color:var(--text)}
#aa441 .details-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px;align-items:start}#aa441 .assumptions ul{padding-left:17px;margin:5px 0;font-size:12px;line-height:1.65}#aa441 .assumptions details{margin-top:7px}#aa441 .assumptions p{font-size:12px;line-height:1.6}#aa441 summary{cursor:pointer;color:var(--ink);font-size:12px;line-height:1.4}#aa441 .faq details{border:1px solid var(--line);border-radius:4px;padding:5px 10px;margin-top:5px}#aa441 .faq summary{list-style:none;position:relative;padding-right:18px}#aa441 .faq summary::-webkit-details-marker{display:none}#aa441 .faq summary:after{content:'⌄';position:absolute;right:0;top:-2px;color:var(--blue);font-size:17px}#aa441 .faq details[open]>summary:after{content:'⌃'}#aa441 .faq p{font-size:12px;line-height:1.7;margin-bottom:3px}
#aa441 .sources{margin-top:10px}#aa441 .sources h2{margin-bottom:6px}#aa441 .source-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}#aa441 .source-grid>a{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:4px;padding:8px;min-width:0;text-decoration:none}#aa441 .source-grid>a:hover{background:var(--soft);border-color:var(--blue)}#aa441 .source-logo{display:flex;align-items:center;justify-content:center;flex:0 0 42%;height:64px;border-right:1px solid var(--line);padding-right:10px;min-width:0}#aa441 .source-logo img{display:block;max-width:100%;width:100%;height:56px;object-fit:contain}#aa441 .source-grid b{display:block;color:var(--ink);font-size:11px;line-height:1.4}#aa441 .source-grid small{display:block;color:var(--text);font-size:10px;line-height:1.4;margin-top:4px}#aa441 .small-print{text-align:center;font-size:9px;color:var(--muted);margin:5px 0 0}#aa441 .related{padding:14px 0 8px}#aa441 .related-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:6px}#aa441 .related-heading h2{margin:0}#aa441 .related-heading>a{font-size:12px;white-space:nowrap}#aa441 .related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}#aa441 .related-grid>a{display:flex;align-items:center;gap:14px;min-width:0;border:1px solid var(--line);border-radius:5px;padding:14px;min-height:120px;text-decoration:none}#aa441 .related-grid>a:hover{border-color:var(--blue);background:var(--soft)}#aa441 .related-grid .walk-art{width:105px;flex-basis:105px;height:80px}#aa441 .related-grid b{display:block;color:var(--ink);font-size:15px;line-height:1.4}#aa441 .related-grid small{display:block;color:var(--text);font-size:12px;line-height:1.5;margin-top:5px}#aa441 .sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}
html.st-master-dark #aa441{--ink:#e9f2ff;--text:#c3d3e9;--muted:#a3b7d1;--line:#365371;--paper:#102235;--soft:#172d44;--blue:#83baff;--green:#153f30;--green-line:#3c7158;--ref-shield-paper:#17334f;--ref-shield-inner:#234b70;--ref-shield-layer:#305b81;color-scheme:dark}html.st-master-dark #aa441 .intro{color:var(--text)}html.st-master-dark #aa441 .mode.selected{background:#17334f}html.st-master-dark #aa441 .st-reference-notice{background:linear-gradient(105deg,#142a41,#193652)}html.st-master-dark #aa441 .error:not(:empty){color:#ffb3c1}html.st-master-dark #aa441 .source-logo{background:#fff;padding:5px 8px;border-radius:3px}html.st-master-dark #aa441 .walk-art{filter:brightness(1.1) drop-shadow(0 0 .4px #c9def2)}html.st-master-dark #aa441 input[aria-invalid=true]{border-color:#ffb3c1}
@media(max-width:1100px){#aa441 .mode b{font-size:15px}#aa441 .mode small{font-size:11px}#aa441 .related-grid>a{padding:12px;gap:10px}#aa441 .related-grid .walk-art{width:86px;flex-basis:86px;height:76px}#aa441 .metrics strong{font-size:27px}#aa441 .result>strong{font-size:64px}#aa441 .symptom-top label{font-size:12px}}
@media(max-width:820px){#st334Content:has(#aa441){width:calc(100% - 28px)}#aa441 .main-grid,#aa441 .details-grid{grid-template-columns:1fr}#aa441 .st-reference-notice{grid-template-columns:minmax(0,1fr) 130px;padding:12px}#aa441 .st-reference-notice h2{font-size:16px}#aa441 .st-reference-notice p{font-size:11px}#aa441 .source-grid,#aa441 .related-grid{grid-template-columns:1fr}#aa441 .source-logo{flex-basis:110px}#aa441 .source-grid b{font-size:13px}#aa441 .source-grid small{font-size:11px}#aa441 .related-grid>a{min-height:110px;padding:14px;gap:20px}#aa441 .related-grid .walk-art{width:110px;flex-basis:110px;height:80px}#aa441 .related-grid b{font-size:16px}#aa441 .symptom-grid{grid-template-columns:1fr}#aa441 .symptom-grid>.symptom+div{border-left:0;padding-left:0;padding-top:10px;border-top:1px solid var(--line)}#aa441 .comparison{min-height:220px;flex:auto}#aa441 .walk-photo{max-width:600px;align-self:center}}
@media(max-width:540px){#aa441 .modes{gap:7px}#aa441 .mode{height:144px;flex-direction:column;text-align:center;padding:7px 4px;gap:4px;justify-content:flex-start}#aa441 .mode .walk-art{width:100%;height:76px;flex:0 0 76px}#aa441 .mode b{font-size:12px}#aa441 .mode small{font-size:10px;margin-top:3px}#aa441 .st-reference-notice{grid-template-columns:minmax(0,1fr) 95px;gap:9px}#aa441 .st-reference-notice h2{font-size:14px}#aa441 .st-reference-shield{width:35px;height:39px}#aa441 .st-reference-seal{padding-left:8px}#aa441 .st-reference-seal b,#aa441 .st-reference-seal small{font-size:8px}#aa441 h2{font-size:18px}#aa441 h3{font-size:17px}#aa441 .field{grid-template-columns:32% minmax(0,1fr)}#aa441 .field label,#aa441 #walkSexLabel{font-size:11px}#aa441 input,#aa441 select{font-size:12px}#aa441 .toggle>button{font-size:12px}#aa441 .units{flex-basis:42%}#aa441 .result>strong{font-size:52px}#aa441 .result h3{font-size:24px}#aa441 .metrics strong{font-size:25px}#aa441 .export-actions button{font-size:12px}#aa441 .related-heading{flex-direction:column;align-items:flex-start;gap:5px}#aa441 .related-heading>a{font-size:11px}#aa441 .bar-track>b{font-size:10px}#aa441 #walkChart{padding-right:48px}#aa441 .profile-strip{font-size:11px}#aa441 .symptom-top input{width:70px}#aa441 .symptom-top label{font-size:12px}}

/* Approved A-a layout: same card geometry, chart and action row. */
#aa441 .field{grid-template-columns:41% minmax(0,1fr)}
#aa441 .field .hint{font-size:10px;margin:4px 0 0}
#aa441 #aaUnitLabel{font-size:13px;font-weight:bold;color:var(--ink)}
#aa441 .units{width:100%;flex-basis:auto}
#aa441 .suffix span{font-size:12px;white-space:nowrap}
#aa441 .advanced{border:1px solid var(--line);border-radius:4px;margin:5px 0}
#aa441 .advanced>summary{padding:8px 10px;background:var(--soft);font-weight:bold;font-size:14px;list-style:none;position:relative}
#aa441 .advanced>summary::-webkit-details-marker{display:none}
#aa441 .advanced>summary:after{content:'⌄';position:absolute;right:10px;top:5px;font-size:18px;color:var(--blue)}
#aa441 .advanced[open]>summary:after{content:'⌃'}
#aa441 .advanced-body{padding:9px}
#aa441 .advanced-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
#aa441 .advanced-grid>div+div{border-left:1px solid var(--line);padding-left:12px}
#aa441 .advanced-grid label{display:block;font-size:12px;font-weight:400;margin-bottom:4px}
#aa441 .advanced-grid .suffix span{font-size:11px;padding:0 6px}
#aa441 .advanced .hint{font-size:11px;margin:6px 0}
#aa441 .pressure-presets{display:flex;gap:5px}
#aa441 .pressure-presets button{font-size:11px;padding:6px 9px}
#aa441 .pressure-presets .selected{color:#fff;background:#0768ff;border-color:#0768ff}
#aa441 #aaSampleNote,#aa441 #aaProfileNote{font-size:11px;margin:6px 0}
#aa441 .walk-photo>img:first-child{aspect-ratio:2/1;object-fit:cover}
#aa441 .result{padding:16px 8px 12px}
#aa441 .result>strong{font-size:clamp(36px,4.3vw,58px);letter-spacing:-1px;white-space:nowrap}
#aa441 .result h3{font-size:22px;color:#15803d}
#aa441 .result[data-state=above] h3,#aa441 .result[data-state=review] h3{color:#945c00}
#aa441 .result[data-state=unclassified] h3,#aa441 .result[data-state=invalid] h3{color:var(--ink)}
#aa441 .metrics .age-reference{grid-column:1/-1}
#aa441 .metrics strong{font-size:25px}
#aa441 .age-reference .hint{font-size:11px;margin:4px 0 0}
#aa441 .comparison{min-height:235px;margin-top:10px;justify-content:flex-start}
#aa441 .comparison h3{font-size:19px;margin-bottom:12px}
#aa441 #aaChart{padding-right:44px}
#aa441 .compare-row{margin:0 0 12px}
#aa441 .bar-track{height:20px;background:repeating-linear-gradient(to right,transparent,transparent calc(20% - 1px),var(--line) calc(20% - 1px),var(--line) 20%)}
#aa441 .axis-label{font-size:11px;text-align:center;margin:4px 0 0}
#aa441 .difference{font-size:16px;color:var(--ink);font-weight:bold;margin:16px 0 0}
#aa441 .profile-strip{background:transparent;padding:0;margin:10px 0 0;font-size:11px;color:var(--text)}
#aa441 .dashboard>.safety-note{margin-top:8px}
#aa441 .context{margin-top:10px}
#aa441 .context>p{font-size:12px;margin:4px 0}
#aa441 .context-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:8px}
#aa441 .context-grid>div{border:1px solid var(--line);border-radius:4px;padding:9px 10px;min-width:0}
#aa441 .context-grid b{font-size:13px;color:var(--ink)}
#aa441 .context-grid p{font-size:12px;margin:2px 0}
#aa441 .context-note{background:var(--soft);border-radius:4px;padding:6px}
#aa441 .warning{background:#fff7d6;border:1px solid #f6e4a6;border-radius:4px;color:#714619;padding:6px 8px;font-size:12px;line-height:1.45}
#aa441 .st-reference-notice .warning{margin-top:7px;font-size:11px;padding:4px 6px}
#aa441 .assumptions>p{font-size:12px;margin:3px 0}
#aa441 .assumptions details{background:var(--soft);border-radius:4px;padding:6px;margin-top:7px}
#aa441 .assumptions details p{font-size:12px}
#aa441 .source-logo{background:#fff;padding:5px 8px;border-radius:3px}
html.st-master-dark #aa441 .warning{background:#3c301b;border-color:#816a39;color:#ffe2a0}
html.st-master-dark #aa441 .result h3{color:#9de1b8}
html.st-master-dark #aa441 .result[data-state=above] h3,html.st-master-dark #aa441 .result[data-state=review] h3{color:#ffe2a0}
html.st-master-dark #aa441 .result[data-state=unclassified] h3,html.st-master-dark #aa441 .result[data-state=invalid] h3{color:var(--ink)}
@media(max-width:1100px){#aa441 .mode b{font-size:14px}#aa441 .metrics strong{font-size:22px}#aa441 .result h3{font-size:19px}}
@media(max-width:820px){#aa441 .context-grid{grid-template-columns:1fr}#aa441 .comparison{min-height:235px}#aa441 .result>strong{font-size:48px}}
@media(max-width:540px){#aa441 .field{grid-template-columns:40% minmax(0,1fr)}#aa441 .field label,#aa441 #aaUnitLabel{font-size:11px}#aa441 .suffix span{font-size:10px;padding:0 7px}#aa441 .advanced-grid{gap:8px}#aa441 .advanced-grid>div+div{padding-left:8px}#aa441 .advanced-grid label{font-size:10px}#aa441 .mode b{font-size:11px}#aa441 .mode small{font-size:9px}#aa441 .result>strong{font-size:39px;white-space:normal}#aa441 .result h3{font-size:18px}#aa441 .metrics strong{font-size:22px}#aa441 .comparison h3{font-size:17px}#aa441 #aaChart{padding-right:35px}#aa441 .bar-track>b{font-size:10px}}