:root{color-scheme:light dark;--paper:#f5f0e5;--surface:#fffdf7;--ink:#292c25;--muted:#5b6054;--line:#8b8e7c;--accent:#9c381a;--wash:#ebe7d8;--green:#315c45;--focus:#005fbd;--chart:#315c45;font:16px/1.5 Arial,Helvetica,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--paper);color:var(--ink)}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button{min-height:48px;padding:12px 20px;border:1px solid var(--ink);background:var(--ink);color:var(--surface);font-weight:bold;cursor:pointer;border-radius:3px}button:hover{filter:brightness(1.15)}button:disabled{opacity:.55;cursor:default}.quiet{background:transparent;color:var(--ink)}:focus-visible{outline:3px solid var(--focus);outline-offset:4px}input,select{max-width:100%;min-width:0;min-height:48px;padding:10px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:3px}input[type=checkbox],input[type=radio]{min-height:24px;width:24px;height:24px;accent-color:var(--green);flex:none}input[type=range]{width:100%;padding:0;accent-color:var(--green)}label{display:grid;gap:6px;font-size:.875rem;font-weight:bold}p{margin:0 0 16px}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;font-weight:normal;line-height:1.12}h1{font-size:clamp(2.5rem,6vw,4.8rem);letter-spacing:-.05em;margin:18px 0 20px}h2{font-size:clamp(1.7rem,4vw,2.25rem);margin:0}h3{font-size:1.4rem;margin:20px 0 12px}.masthead,main{width:min(1120px,calc(100% - 40px));margin:auto}.masthead{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:22px 0;gap:15px}.brand{font:bold 28px Georgia,serif;letter-spacing:-1.5px;text-decoration:none;min-height:48px}.brand span{display:block;font:10px/2 Arial,sans-serif;letter-spacing:2px}.hero{padding:48px 0 28px;max-width:900px}.eyebrow{font-size:.75rem;letter-spacing:.14em;font-weight:bold;text-transform:uppercase;color:var(--accent)}.intro{font-size:1.15rem}.mode{font-size:.8125rem;border-left:3px solid var(--accent);padding:8px 14px;max-width:65ch;color:var(--muted)}.panel{background:var(--surface);border:1px solid var(--line);padding:clamp(18px,4vw,36px);margin-bottom:24px}.section-heading{display:flex;align-items:center;gap:14px;margin-bottom:24px;flex-wrap:wrap}.number{border:1px solid var(--line);display:grid;place-items:center;width:30px;height:30px;flex:none;font:italic 18px Georgia,serif}.capture-grid,.calibration-layout,.chart-layout{display:grid;gap:30px}.capture-sketch{border:1px solid var(--line);background:var(--paper);height:150px;position:relative;display:flex;align-items:center;justify-content:center;gap:32px}.sketch-grounds{font-size:30px;line-height:.8;letter-spacing:4px;color:var(--accent)}.sketch-dime{border:2px double var(--muted);width:60px;height:60px;border-radius:50%;display:grid;place-items:center;font:10px Georgia,serif}.sketch-caption{position:absolute;bottom:8px;left:12px;font-size:9px;letter-spacing:1px}.guidance{font-size:.875rem;margin:14px 0 0;max-width:60ch}.upload{border:1px dashed var(--green);padding:22px;background:var(--wash);display:flex;flex-direction:column;justify-content:center;gap:12px;text-align:center}.upload.dragging{outline:4px solid var(--green)}.upload label{cursor:pointer;justify-items:center}.upload strong{font-size:1rem}.upload label span:last-child{font-weight:normal}.upload-symbol{font:32px Georgia,serif}.upload input{width:100%;font-size:.75rem}.upload p{font-size:.75rem;margin:0}.upload a{font-size:.875rem;padding:10px;min-height:44px}.photo-frame{position:relative;align-self:start;background:#fff}.photo-frame canvas{display:block;width:100%;height:auto}.photo-frame svg{position:absolute;inset:0;width:100%;height:100%;touch-action:none}.reference-ring{fill:#00675418;stroke:#007460;stroke-width:3;vector-effect:non-scaling-stroke;cursor:move}.reference-handle{fill:#fff;stroke:#005a48;stroke-width:2;vector-effect:non-scaling-stroke;cursor:move}.numeric{font-variant-numeric:tabular-nums;margin-top:12px}.small,.optional{font-size:.8125rem;font-weight:normal;color:var(--muted)}.check{display:flex;align-items:center;min-height:48px;gap:10px;margin:12px 0;font-weight:normal}.actions{display:flex;flex-wrap:wrap;gap:12px}.actions>*{flex:1 1 180px}.notice{background:var(--wash);border-left:3px solid var(--accent);padding:14px;font-size:.875rem}.error{color:var(--accent);font-weight:bold}.error:empty{display:none}.progress{display:flex;align-items:center;gap:14px;padding:24px;background:var(--wash);margin-bottom:24px}.progress-dot{height:12px;width:12px;background:var(--green);border-radius:50%;animation:pulse 1s infinite alternate}@keyframes pulse{to{opacity:.3}}.result-top{display:grid;gap:20px}.measurement{font:clamp(4rem,12vw,7rem)/1 Georgia,serif;letter-spacing:-.05em;margin:12px 0}.measurement span:last-child{font:24px Arial,sans-serif;margin-left:12px;letter-spacing:0}.metrics{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 18px;margin:0 0 20px}.metrics div{border-top:1px solid var(--line);padding:13px 0}.metrics dt{font-size:.75rem;color:var(--muted)}.metrics dd{font:1.6rem/1.4 Georgia,serif;margin:4px 0 0}.chart-layout canvas{display:block;width:100%;height:auto;background:#fff}.chart-layout{margin-bottom:24px}.form-grid{display:grid;gap:20px;grid-template-columns:repeat(2,minmax(0,1fr))}fieldset{border:0;padding:0;margin:24px 0}legend{font-weight:bold;font-size:.875rem;margin-bottom:12px}.choices{display:flex;flex-wrap:wrap;gap:8px}.choices label{position:relative;display:flex;align-items:center;cursor:pointer;min-height:48px}.choices input{position:absolute;opacity:0;width:1px;height:1px}.choices span{display:flex;align-items:center;min-height:48px;padding:10px 16px;border:1px solid var(--line);font-weight:normal}.choices input:checked+span{background:var(--green);color:#fff;border-color:var(--green)}.choices input:checked+span:before{content:'✓';margin-right:7px}.choices input:focus-visible+span{outline:3px solid var(--focus);outline-offset:3px}.recommendation{border-top:6px solid var(--green)}.rec-heading{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin:12px 0}.rec-heading h2{font-size:clamp(3.5rem,10vw,5rem);letter-spacing:-.05em}.tag{display:inline-block;border:1px solid var(--green);color:var(--green);font-size:.75rem;padding:5px 9px}.delta{font:2rem Georgia,serif}.target{padding:12px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font-weight:bold}.reasons{padding-left:22px}.reasons li{padding:12px 0;border-bottom:1px solid var(--line)}.reasons .tag{margin:8px 0 0}.warnings{padding-left:22px}.warnings li{margin-bottom:10px}.widget-section{margin:24px 0}.widget-section>div{margin-top:20px}.history-list{list-style:none;padding:0}.history-list button{display:grid;grid-template-columns:1fr auto;width:100%;text-align:left;gap:8px;background:var(--surface);color:var(--ink);margin:10px 0}.history-list small{grid-column:1/-1;font-weight:normal}.history-list span{font-family:Georgia,serif;font-size:1.3rem}summary{cursor:pointer;min-height:48px;padding:12px 0;font-size:.875rem;font-weight:bold}table{width:100%;border-collapse:collapse;font-size:.8125rem}caption{text-align:left}th,td{text-align:left;border-bottom:1px solid var(--line);padding:8px}footer{border-top:1px solid var(--line);padding:30px 0 50px;font-size:.75rem;color:var(--muted);display:grid;gap:12px}footer p{max-width:60ch;margin:0}.skip{position:absolute;left:20px;top:-100px;padding:12px;background:var(--surface);z-index:10}.skip:focus{top:10px}section{scroll-margin-top:20px}button,p,h1,h2,h3,dd,span,a{overflow-wrap:anywhere}#history-detail{border-top:2px solid var(--line);margin-top:24px;padding-top:12px}#detail-stats{margin-top:24px}@media(min-width:760px){.capture-grid{grid-template-columns:1fr 1fr}.calibration-layout{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}.result-top{grid-template-columns:1fr 1fr}.chart-layout{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.form-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.metrics{align-content:center}}@media(max-width:400px){.masthead,main{width:calc(100% - 28px)}.form-grid{grid-template-columns:1fr}.hero{padding-top:30px}.capture-sketch{height:100px}.guidance{font-size:.8125rem}.panel{padding:16px}.choices span{padding:10px 12px}}@media(prefers-color-scheme:dark){:root{--paper:#1b211d;--surface:#242d26;--ink:#f3efdf;--muted:#c1c5b8;--line:#7c887c;--accent:#ffc19b;--wash:#323c31;--green:#c6dda9;--focus:#ffca80;--chart:#315c45}.choices input:checked+span{color:#18241a}.upload{border-color:var(--line)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;scroll-behavior:auto!important}}@media(forced-colors:active){.choices input:checked+span{border:3px solid Highlight}.reference-ring{stroke:Highlight}.reference-handle{stroke:Highlight;fill:Canvas}.panel,.tag{border-color:CanvasText}}
.decoder-nav{display:flex;gap:4px 20px;flex-wrap:wrap;align-items:center}.decoder-nav a,.decoder-footer a{display:inline-flex;align-items:center;min-height:48px;font-size:.875rem}.decoder-nav [aria-current=page],.decoder-footer [aria-current=page]{text-decoration-thickness:3px;text-decoration-color:var(--accent)}.decoder-footer{display:grid;grid-template-columns:1fr 1fr;gap:20px}.decoder-footer strong{font:bold 26px Georgia,serif;color:var(--ink)}.decoder-footer nav{display:flex;gap:4px 20px;flex-wrap:wrap}.decoder-footer>p{grid-column:1/-1}.bag-source-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}.bag-source-tabs [aria-pressed=true]{background:var(--green);color:var(--surface);border-color:var(--green)}#bag-url,#bag-photo{width:100%;margin:8px 0}.bag-transcript{margin:24px 0}textarea{width:100%;max-width:100%;min-width:0;padding:14px;font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:3px;resize:vertical}#bag-image{display:block;max-width:100%;max-height:420px;object-fit:contain;margin-bottom:16px}.bag-facts{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 30px;margin:24px 0}.bag-fact{border-top:1px solid var(--line);padding:6px 0 24px;min-width:0}.bag-fact h3{font:12px Arial,sans-serif;text-transform:uppercase;letter-spacing:.12em}.bag-value{font:1.75rem/1.2 Georgia,serif;overflow-wrap:anywhere}.bag-value.unknown{color:var(--muted);font-style:italic}.bag-subtitle{margin-top:10px;color:var(--muted)}pre{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.6 Arial,sans-serif}#bag-widget{margin-top:24px}.tool-next{border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:24px 0;padding:24px 0}.tool-next a{display:inline-flex;min-height:48px;align-items:center}.tool-next p{max-width:60ch}@media(max-width:760px){.masthead{flex-wrap:wrap}.decoder-nav{width:100%;gap:4px 16px}.decoder-footer{grid-template-columns:1fr}.bag-facts{grid-template-columns:1fr}}@media(prefers-color-scheme:dark){.bag-source-tabs [aria-pressed=true]{color:#18241a}}
.share-panel{border-top:1px solid var(--line);padding:26px 0;margin-top:30px}.share-panel h2{font-size:1.6rem;margin-bottom:12px}.share-panel>p{font-size:.875rem;max-width:65ch}.share-download{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 16px;border:1px solid var(--line);border-radius:3px}.share-panel input{width:100%}
/* Mobile flow: one active task, with completed steps available to revisit. */
.flow-progress{margin:0 0 22px;scroll-margin-top:12px}.flow-status{font-size:.8125rem;font-weight:bold;margin:0 0 8px}.flow-progress ol{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:4px;list-style:none;padding:0;margin:0}.flow-progress button{width:100%;min-height:48px;padding:8px 4px;font-size:.75rem;background:var(--surface);color:var(--ink);border-color:var(--line);font-weight:normal}.flow-progress button[aria-current=step]{background:var(--green);color:var(--surface);font-weight:bold;border-width:2px}.flow-progress button:disabled{opacity:1;color:var(--muted);background:transparent;border-style:dashed}.continue-action{display:block;width:100%;margin-top:24px}.optional-context{border-top:1px solid var(--line);margin-top:22px}.optional-context summary span{font-size:.75rem;font-weight:normal;color:var(--muted);margin-left:8px}.optional-context .form-grid{margin:12px 0}.capture-guide-art{display:block;width:100%;height:auto;border-radius:6px}.bag-paste-help{margin:6px 0 10px}.bag-paste-help .capture-guide-art{margin-bottom:12px}.bag-fact{padding-bottom:18px}.bag-fact .bag-value{margin-bottom:6px}.bag-fact details{margin:0}.bag-fact summary{font-weight:normal;font-size:.8125rem}.bag-fact .tag{margin-top:8px}.recommendation>button{margin:6px 8px 6px 0}
@media(max-width:600px){.hero{padding:24px 0 16px}.hero h1{font-size:2.25rem;margin:10px 0 12px}.hero .intro{font-size:1rem;margin-bottom:12px}.hero .mode{font-size:.75rem}.capture-grid{gap:18px}.capture-guide-art{max-height:180px;object-fit:contain}.bag-facts{grid-template-columns:repeat(2,minmax(0,1fr));gap:0 16px}.bag-fact .bag-value{font-size:1.25rem}.bag-fact h3{font-size:.6875rem;letter-spacing:.08em}.bag-fact .tag{font-size:.625rem;padding:4px}.bag-fact details[open]{grid-column:1/-1}.bag-source-tabs{gap:6px}.bag-source-tabs button{flex:1;padding:10px 6px;font-size:.8125rem}.bag-transcript{margin-top:16px}input,select,textarea{font-size:1rem}}
@media(max-width:280px){.flow-progress ol{grid-template-columns:repeat(3,minmax(0,1fr))}.bag-facts{grid-template-columns:1fr}.hero h1{font-size:1.8rem}}
@media(prefers-color-scheme:dark){.flow-progress button[aria-current=step]{color:#18241a}}