@font-face{font-family:Spartan;src:url(assets/spartan-400.ttf);font-weight:400;font-display:swap}@font-face{font-family:Spartan;src:url(assets/spartan-600.ttf);font-weight:600;font-display:swap}@font-face{font-family:Spartan;src:url(assets/spartan-700.ttf);font-weight:700;font-display:swap}
:root{--paper:#fcfaf5;--ink:#292d35;--muted:#697079;--line:#e2ddd3;--blue:#0369a1;--rose:#be123c;--tint:#eaf3f6}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:17px/1.5 Spartan,Arial,sans-serif}button,select{font:inherit;cursor:pointer}button{color:inherit}button,a,select{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,select:focus-visible{outline:3px solid var(--blue);outline-offset:5px}button{touch-action:manipulation}header,main{max-width:1320px;margin:auto;padding:0 48px}header{height:94px;display:flex;align-items:center;gap:25px;border-bottom:1px solid var(--line)}.brand img{width:155px;display:block}.header-divider{height:25px;border-left:1px solid var(--line)}.header-title{font-size:15px;color:var(--muted)}.prototype{margin-left:auto;font-size:10px;letter-spacing:.15em;border:1px solid var(--line);padding:5px 9px;border-radius:5px;color:var(--muted)}.intro{display:flex;justify-content:space-between;align-items:center;padding:49px 0 39px;gap:20px}.eyebrow{font-size:10px;letter-spacing:.17em;font-weight:700;color:var(--rose)}h1,h2,h3,p{margin:0}h1{font-size:76px;line-height:1.1;letter-spacing:-.055em;margin:13px 0 9px;font-weight:700}h1 span{color:var(--rose)}.intro p{color:var(--muted);font-size:19px;line-height:1.45}.scale-art{width:370px;height:145px;display:flex;align-items:flex-end;gap:9px;position:relative;padding-bottom:28px;transform:rotate(-4deg)}.scale-art>span{display:flex;align-items:center;justify-content:center;background:#c9e8f5;color:#0369a1;font-weight:700;border-radius:6px;font-size:22px;width:55px;height:45px}.scale-art>span:nth-child(2){height:65px;width:65px;background:#98cce3}.scale-art>span:nth-child(3){height:88px;width:88px;background:#0369a1;color:white;font-size:30px}.scale-art>span:nth-child(4){height:116px;width:116px;background:#be123c;color:white;font-size:33px}.scale-art small{position:absolute;bottom:0;left:0;width:100%;font-size:12px;text-align:center;color:var(--muted)}.browse{display:flex;justify-content:space-between;border-block:1px solid var(--line);padding:14px 0;gap:20px}.category-tabs{display:flex;gap:8px}.category-tabs button{border:0;background:none;padding:10px 18px;border-radius:7px;color:var(--muted);font-weight:600;display:flex;align-items:center;gap:10px}.category-tabs button[aria-pressed=true]{background:var(--blue);color:white}.unit-picker{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--muted)}select{border:1px solid var(--line);border-radius:6px;background:transparent;padding:8px 32px 8px 12px;color:var(--ink);font-weight:600}.section-heading{display:flex;align-items:end;justify-content:space-between;padding:28px 0 23px;gap:20px}.section-heading h2{font-size:32px;line-height:1.15;letter-spacing:-.025em;margin-top:6px}.section-heading p{max-width:315px;color:var(--muted);font-size:15px}.powers{display:flex;margin-bottom:18px;gap:0}.power{position:relative;flex:1;border:1px solid var(--line);background:transparent;padding:12px;border-right:0;font-size:20px;font-weight:600}.power:first-child{border-radius:8px 0 0 8px}.power:last-child{border-right:1px solid var(--line);border-radius:0 8px 8px 0}.power[aria-pressed=true]{background:var(--tint);color:var(--blue);box-shadow:inset 0 -3px var(--blue)}.power:not(:last-child):after{content:'×10';position:absolute;right:-15px;top:15px;background:var(--paper);border:1px solid var(--line);border-radius:20px;font-size:10px;font-weight:600;padding:1px 5px;z-index:1;color:var(--muted)}.feature{display:grid;grid-template-columns:1.1fr 1fr;min-height:440px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:white}.photo-wrap{position:relative;min-height:440px;overflow:hidden;background:#e9ece5}.photo-wrap>img{width:100%;height:100%;position:absolute;object-fit:cover}.photo-label{position:absolute;bottom:20px;left:20px;background:#fffef6ee;backdrop-filter:blur(8px);border-radius:5px;padding:7px 12px;font-size:12px;color:#45535c}.feature-copy{padding:33px 40px;display:flex;flex-direction:column;align-items:flex-start}.feature-copy .eyebrow{color:var(--blue)}.amount{display:flex;align-items:baseline;gap:14px;margin:0 0 9px;line-height:1.1}.amount>span:first-child{font-size:89px;letter-spacing:-.06em;font-weight:600}.amount>span:last-child{font-size:28px;color:var(--blue)}.about{font-size:10px;letter-spacing:.15em;color:var(--muted);margin:7px 0}.feature h3{font-size:30px;letter-spacing:-.025em;line-height:1.15}.feature p{color:var(--muted);margin-top:10px;font-size:16px;max-width:350px}.connection{padding:12px 0 15px;margin-top:16px;border-top:1px solid var(--line);font-size:14px;width:100%;color:#53616c}.connection strong{color:var(--blue)}.primary{display:inline-flex;align-items:center;justify-content:space-between;gap:50px;background:var(--blue);border:0;color:white;border-radius:7px;padding:13px 20px;font-weight:600;font-size:18px;min-height:48px}.primary:hover{background:#075985}.primary span{font-size:23px;line-height:1}.practice-note{font-size:12px;color:var(--muted);margin-top:9px}.look-heading{display:flex;align-items:center;justify-content:space-between;margin:31px 0 14px}.look-heading h3{font-size:23px;letter-spacing:-.02em}.look-heading>span{font-size:13px;color:var(--muted)}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}.mini-card{text-align:left;background:white;border:1px solid var(--line);border-radius:9px;overflow:hidden;padding:0;transition:transform .15s}.mini-card:hover{transform:translateY(-3px)}.mini-card[aria-pressed=true]{outline:2px solid var(--blue);outline-offset:2px}.mini-card img{display:block;width:100%;height:160px;object-fit:cover}.mini-card .mini-info{padding:14px 15px}.mini-card strong{font-size:25px;letter-spacing:-.03em}.mini-card strong small{font-size:16px;font-weight:400;color:var(--blue)}.mini-card p{font-size:14px;color:var(--muted);margin-top:3px}.bottom-note{display:flex;align-items:center;gap:18px;background:#f2eee5;border-radius:8px;padding:19px 23px;margin:28px 0 0}.note-mark{font-size:40px;color:var(--blue)}.bottom-note p{font-size:13px;color:var(--muted);max-width:700px}.bottom-note p strong{color:var(--ink)}.bottom-note button{margin-left:auto;white-space:nowrap;border:0;background:none;font-size:14px;color:var(--blue);font-weight:600}footer{display:flex;justify-content:space-between;gap:20px;padding:30px 0;font-size:10px;letter-spacing:.08em;color:var(--muted)}footer b{color:var(--rose);margin:0 8px}.water-grid{display:grid;grid-template-columns:repeat(2,1fr);height:100%;position:absolute;inset:0}.water-grid img{width:100%;height:100%;object-fit:cover;min-height:0}.mini-card .water-grid{position:static;height:160px}.mini-card .water-grid img{height:80px}dialog{margin:auto;position:fixed;inset:0;width:min(820px,calc(100% - 28px));max-height:calc(100dvh - 28px);overflow:auto;background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:25px 30px;color:var(--ink);box-shadow:0 30px 100px #17233540}dialog::backdrop{background:#17233599;backdrop-filter:blur(7px)}.practice-top{display:flex;align-items:center;justify-content:space-between}.close{border:1px solid var(--line);border-radius:50%;background:transparent;width:35px;height:35px;font-size:25px;line-height:1}.practice-content{text-align:center;padding:6px 10px 10px}.practice-content h2{font-size:36px;line-height:1.12;letter-spacing:-.025em;margin:10px 0}.practice-content .lead{font-size:16px;color:var(--muted)}.practice-image{position:relative;width:min(100%,400px);height:270px;border-radius:9px;overflow:hidden;margin:18px auto}.practice-image>img{width:100%;height:100%;object-fit:cover}.practice-amount{font-size:33px;color:var(--blue);font-weight:600;margin:15px 0}.practice-content .primary{min-width:240px;justify-content:center;margin-top:12px}.progress{display:flex;gap:5px;justify-content:center;margin-top:15px}.progress span{width:38px;height:4px;border-radius:3px;background:#e0dbd0}.progress span.active{background:var(--blue)}.round-label{font-size:11px;letter-spacing:.12em;color:var(--muted);margin-top:15px}.answers{display:grid;grid-template-columns:1fr 1fr;gap:14px;max-width:560px;margin:0 auto}.answer{border:1px solid #b2c9d5;border-radius:8px;background:white;padding:17px;font-size:27px;color:var(--blue);font-weight:600}.answer:hover:not(:disabled){background:var(--tint)}.answer.correct{border:2px solid #277362;background:#e4f3ed;color:#226250}.answer.wrong{background:#fce9ec;border-color:#be123c;color:#9d2442}.answer:disabled{cursor:default}.feedback{min-height:76px;padding-top:13px;font-size:16px}.feedback strong{display:block;color:#226250}.feedback p{font-size:14px;color:var(--muted)}.done-icon{font-size:60px;color:var(--blue);padding:30px 0 0}.recap{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:25px 0}.recap span{background:var(--tint);color:var(--blue);padding:9px 14px;border-radius:6px}.text-button{display:block;margin:17px auto 0;background:none;border:0;color:var(--blue);font-size:15px}#how-dialog{max-width:520px;padding:35px}#how-dialog>.close{float:right}#how-dialog h2{font-size:36px;line-height:1.1;margin:20px 0}#how-dialog p{color:var(--muted);margin:16px 0}
@media(min-width:1400px){.feature{min-height:470px}.photo-wrap{min-height:470px}.feature-copy{padding:42px 45px}}@media(max-width:900px){header,main{padding-inline:25px}.scale-art{width:290px;transform:scale(.85) rotate(-4deg);transform-origin:right center}.intro h1{font-size:65px}.intro .eyebrow{font-size:9px}.feature-copy{padding:27px}.amount>span:first-child{font-size:72px}.amount>span:last-child{font-size:24px}.mini-card img{height:130px}.bottom-note{flex-wrap:wrap}.bottom-note button{margin-left:50px}.header-title{display:none}}@media(max-width:650px){header,main{padding-inline:20px}header{height:75px}.brand img{width:133px}.header-divider{display:none}.intro{padding:30px 0 25px}.intro h1{font-size:58px}.intro p{font-size:17px}.intro .eyebrow{font-size:8px;max-width:260px}.scale-art{display:none}.browse{flex-direction:column;gap:14px}.category-tabs{justify-content:space-between;gap:3px}.category-tabs button{padding:10px 9px;font-size:14px;gap:6px}.unit-picker{justify-content:space-between}.unit-picker select{flex:1;max-width:230px}.section-heading{padding:24px 0 20px;display:block}.section-heading h2{font-size:28px}.section-heading p{margin-top:10px;font-size:14px;max-width:none}.power{font-size:17px;padding:10px 4px}.power:not(:last-child):after{top:12px;font-size:8px;right:-12px}.feature{grid-template-columns:1fr}.photo-wrap{min-height:0;height:310px}.feature-copy{padding:25px}.amount>span:first-child{font-size:80px}.feature h3{font-size:30px}.feature p{max-width:none}.feature .primary{width:100%}.look-heading{display:block;margin-top:26px}.look-heading h3{font-size:21px}.look-heading>span{display:block;margin-top:4px}.cards{grid-template-columns:1fr 1fr;gap:14px}.mini-card img{height:145px}.mini-card .mini-info{padding:12px}.mini-card strong{font-size:24px}.mini-card p{font-size:13px}.bottom-note{padding:16px;gap:10px}.bottom-note p{flex:1}.bottom-note button{margin-left:34px}footer{font-size:9px;display:grid;gap:7px}dialog{padding:18px 14px}.practice-top .eyebrow{font-size:9px}.practice-content{padding:8px 0}.practice-content h2{font-size:29px}.practice-image{height:240px}.answer{font-size:23px;padding:14px 6px}.feedback{min-height:85px}.practice-content .primary{width:100%}}


/* Measurement subjects must remain complete, whatever their aspect ratio. */
.photo-wrap,.practice-image,.mini-card{background:#f0f1ed}
.photo-wrap>img{object-fit:contain;padding:14px 14px 48px}
.photo-label{max-width:calc(100% - 28px);left:14px;bottom:12px}
.mini-card>img,.practice-image>img,.water-grid img{object-fit:contain}
.mini-card .mini-info{background:white}
.water-grid{grid-template-rows:repeat(2,minmax(0,1fr));padding:10px;gap:5px}
.photo-wrap>.water-grid{bottom:44px;height:auto}
.water-grid img{min-width:0}
.explore-launch{margin-top:20px}
.explore-header{display:none}
.back-intro{border:0;background:transparent;color:var(--blue);font-size:14px;padding:9px 0}
/* Desktop Explore is one viewport; smaller screens retain natural scrolling. */
body.exploring>header,body.exploring .intro,body.exploring footer{display:none}
body.exploring .explore-header{display:flex;align-items:center;gap:24px;height:52px;margin:auto;padding:0 28px;max-width:1440px;border-bottom:1px solid var(--line)}
.explore-name{font-size:23px;font-weight:700;letter-spacing:-.035em}
.explore-name b{color:var(--rose)}
.explore-hint{margin-left:auto;font-size:13px;color:var(--muted)}
body.exploring main{max-width:1440px;padding:12px 28px 16px}
body.exploring .look-heading{display:none}
@media(min-width:901px) and (min-height:680px){
 body.exploring main{height:calc(100dvh - 52px)}
 body.exploring .atlas{height:100%;display:grid;grid-template-rows:44px 38px 40px minmax(280px,1fr) 100px 32px;gap:8px}
 body.exploring .browse{padding:0;border:0;align-items:center}
 body.exploring .category-tabs button{padding:7px 13px}
 body.exploring .section-heading{padding:0;align-items:center}
 body.exploring .section-heading .eyebrow{display:none}
 body.exploring .section-heading h2{font-size:25px;margin:0}
 body.exploring .section-heading p{max-width:490px;font-size:13px;line-height:1.25}
 body.exploring .powers{margin:0}
 body.exploring .power{padding:5px;font-size:18px}
 body.exploring .power:not(:last-child):after{top:10px}
 body.exploring .feature{min-height:0;grid-template-columns:1.15fr 1fr}
 body.exploring .photo-wrap{height:100%;min-height:0}
 body.exploring .feature-copy{padding:16px 26px;justify-content:center;min-height:0}
 body.exploring .amount{margin:0 0 4px;gap:12px}
 body.exploring .amount>span:first-child{font-size:clamp(56px,8vh,84px)}
 body.exploring .amount>span:last-child{font-size:25px}
 body.exploring .about{display:none}
 body.exploring .feature h3{font-size:25px}
 body.exploring .feature p{font-size:14px;line-height:1.35;max-width:470px;margin-top:7px}
 body.exploring .connection{font-size:12px;line-height:1.3;padding:8px 0;margin-top:9px}
 body.exploring .primary{font-size:16px;min-height:38px;padding:8px 16px}
 body.exploring .practice-note{font-size:11px;margin-top:6px}
 body.exploring .cards{gap:12px;min-height:0}
 body.exploring .mini-card{display:grid;grid-template-columns:38% 1fr;align-items:stretch;min-width:0}
 body.exploring .mini-card>img,body.exploring .mini-card>.water-grid{width:100%;height:98px;padding:5px}
 body.exploring .mini-card .water-grid img{height:100%;min-height:0}
 body.exploring .mini-info{padding:9px 10px;display:flex;flex-direction:column;justify-content:center;min-width:0}
 body.exploring .mini-card strong{font-size:24px;line-height:1.1}
 body.exploring .mini-card p{font-size:12px;line-height:1.15;margin-top:5px}
 body.exploring .bottom-note{margin:0;padding:0 10px;gap:10px;border-radius:5px;flex-wrap:nowrap}
 body.exploring .note-mark{font-size:25px}
 body.exploring .bottom-note p{font-size:11px;line-height:1.2;max-width:none}
 body.exploring .bottom-note button{font-size:12px;margin-left:auto}
}
@media(max-width:900px),(max-height:679px){
 body.exploring .explore-header{padding-inline:20px}
 body.exploring main{padding:0 20px 20px}
 body.exploring .explore-hint{display:none}
 body.exploring .section-heading{padding-block:16px}
 body.exploring .cards{margin-top:16px}
}
@media(max-width:650px){
 body.exploring .explore-header{justify-content:space-between;gap:12px}
 body.exploring .explore-name{font-size:21px}
 body.exploring .photo-wrap{height:280px}
 .photo-wrap>img{padding:10px 10px 46px}
}
/* Atlas workspace: one hierarchy, three examples, and a configurable practice mix. */
[hidden]{display:none!important}
body.exploring .atlas-logo{width:110px;height:auto}
body.exploring h1.explore-name{margin:0;font-size:25px;line-height:1;letter-spacing:-.04em}
body.exploring .explore-header{gap:25px}
.header-practice{margin-left:auto;border:1px solid #c2d7e3;background:#edf5f8;color:var(--blue);border-radius:7px;padding:7px 14px;font-size:14px;font-weight:600}
.header-practice span{margin-left:12px}
.category-tabs svg,.unit-group-heading svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.custom-select{position:relative;min-width:220px}
.dropdown-trigger{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;border-radius:12px;padding:8px 13px;background:white;border:1px solid #cbd5df;color:var(--ink);font-size:15px;font-weight:600;text-align:left}
.dropdown-trigger svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;transition:transform .15s}
.dropdown-trigger[aria-expanded=true] svg{transform:rotate(180deg)}
.dropdown-menu{position:absolute;z-index:40;top:calc(100% + 6px);left:0;right:0;max-height:300px;overflow:auto;overscroll-behavior:contain;background:white;border:1px solid #cbd5df;border-radius:12px;padding:5px;box-shadow:0 12px 30px #0f172a2e}
.dropdown-option{padding:10px;border-radius:7px;cursor:pointer;font-size:15px;color:var(--ink)}
.dropdown-option>span{display:block}.dropdown-option small{color:var(--muted);margin-left:5px}.dropdown-option .option-hint{font-size:11px;color:var(--muted);margin-top:2px}
.dropdown-option[aria-selected=true]{color:var(--blue);background:#eef7fb}
.dropdown-option.highlighted,.dropdown-option:hover{background:#e0f2fe}
.photo-wrap,.practice-image,.mini-card{background:var(--paper)}
body.exploring .photo-wrap{border-right:1px solid var(--line)}
.examples-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.examples-heading h3{font-size:17px;font-weight:600;letter-spacing:-.02em}
.examples-heading>span{font-size:12px;color:var(--muted);white-space:nowrap}
.cards{grid-template-columns:repeat(3,minmax(0,1fr))}
.example-number{color:var(--blue);font-size:10px;letter-spacing:.12em;margin-bottom:5px}
body.exploring .mini-card strong{font-size:18px;font-weight:600;line-height:1.15;letter-spacing:-.02em}
body.exploring .feature h3{font-size:25px}
body.exploring .amount>span:last-child{font-size:23px;line-height:1.1}
body.exploring .amount{flex-wrap:wrap;gap:6px 12px}
@media(min-width:901px) and (min-height:680px){
 body.exploring .atlas{grid-template-rows:40px 32px 38px minmax(265px,1fr) 22px 90px 28px;gap:7px}
 body.exploring .mini-card>img,body.exploring .mini-card>.water-grid{height:88px}
 body.exploring .feature-copy{padding:12px 22px}
 body.exploring .amount>span:first-child{font-size:clamp(50px,7vh,76px)}
 body.exploring .feature p{font-size:14px;line-height:1.3;margin-top:6px}
 body.exploring .connection{padding:6px 0;margin-top:7px}
 body.exploring .bottom-note p{font-size:11px}
}
#setup-dialog{width:min(820px,calc(100% - 28px));padding:25px 30px}
#setup-title{font-size:36px;line-height:1.1;letter-spacing:-.03em;margin:14px 0 8px}
.setup-intro{font-size:16px;color:var(--muted)}
.presets{display:flex;gap:6px;padding:5px;background:#eeeae1;border-radius:9px;margin:20px 0}
.presets button{flex:1;border:0;border-radius:6px;background:transparent;padding:10px 8px;font-weight:600;color:var(--muted);font-size:16px}
.presets button[aria-pressed=true]{color:var(--blue);background:white;box-shadow:0 1px 5px #182c3b12}
fieldset{border:0;margin:0 0 18px;padding:0;min-width:0}
legend{font-weight:600;font-size:17px;margin-bottom:12px;padding:0}
legend>span{font-size:13px;font-weight:400;color:var(--muted);margin-left:8px}
.unit-group{border:1px solid var(--line);background:white;border-radius:9px;padding:12px 14px;margin-bottom:9px}
.unit-group-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:9px}
.unit-group-heading h3{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:600}
.select-family{background:none;border:0;color:var(--blue);font-size:12px;padding:4px}
.choice-chips{display:flex;flex-wrap:wrap;gap:7px}
.choice-chips label{position:relative;cursor:pointer}
.choice-chips input{position:absolute;opacity:0;width:1px;height:1px}
.choice-chips span{display:block;padding:7px 12px;border:1px solid var(--line);background:var(--paper);border-radius:6px;font-size:14px;line-height:1.2;color:#58616a}
.choice-chips input:checked+span{background:#e5f2f8;border-color:var(--blue);color:var(--blue);box-shadow:inset 0 0 0 1px var(--blue)}
.choice-chips input:focus-visible+span{outline:3px solid var(--blue);outline-offset:3px}
.setup-columns{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.question-types{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.question-types label{display:flex;align-items:flex-start;gap:9px;cursor:pointer;background:white;border:1px solid var(--line);border-radius:8px;padding:12px}
.question-types strong{font-size:14px;font-weight:600;display:block}
.question-types small{font-size:12px;color:var(--muted);display:block;margin-top:4px}
input[type=checkbox],input[type=radio]{accent-color:var(--blue)}
.warmup{display:flex;align-items:center;gap:8px;font-size:14px;cursor:pointer}
.session-summary{background:#edf4f6;border:1px solid #d8e7ed;padding:14px 16px;border-radius:9px;margin-top:20px}
.session-summary strong{font-size:18px}.session-summary p{font-size:13px;line-height:1.4;color:var(--muted);margin-top:5px}#mix-error{color:#a51e43}
.setup-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:17px}
.setup-bottom small{font-size:12px;line-height:1.4;color:var(--muted)}
.setup-bottom .primary{white-space:nowrap;gap:12px}
.primary:disabled{opacity:.45;cursor:not-allowed}
.progress span{max-width:38px;flex:1}.progress{max-width:540px;margin-inline:auto}
.practice-content .lead{max-width:620px;margin:auto}
.answer{font-size:24px}.practice-amount{font-size:29px}
@media(max-width:900px),(max-height:679px){body.exploring .examples-heading{margin-top:18px}body.exploring .cards{margin-top:8px}.mini-card .mini-info{padding:12px}.mini-card>img{height:130px}}
@media(max-width:650px){
 body.exploring .atlas-logo{display:none}body.exploring .explore-header{gap:10px}body.exploring h1.explore-name{font-size:22px}.header-practice{font-size:12px;padding:7px 9px}.header-practice span{margin-left:4px}
 .unit-picker .custom-select{flex:1;min-width:0;max-width:260px}.category-tabs button{font-size:13px}.category-tabs svg{width:19px;height:19px}
 .examples-heading h3{font-size:16px}.examples-heading{align-items:flex-start}.examples-heading>span{font-size:11px}
 .cards{gap:9px}.mini-card>img{height:100px}.mini-card .water-grid{height:100px}.mini-card .water-grid img{height:100%;min-height:0}.mini-card .mini-info{padding:8px}body.exploring .mini-card strong{font-size:14px}
 #setup-dialog{padding:20px 16px}#setup-title{font-size:30px}.setup-intro{font-size:14px}.presets button{font-size:14px}legend>span{display:block;margin:4px 0 0}.setup-columns{gap:10px}.choice-chips span{font-size:13px;padding:7px 9px}.question-types{grid-template-columns:1fr}.setup-bottom{flex-direction:column;align-items:stretch}.setup-bottom .primary{justify-content:center}.answer{font-size:21px}.unit-group{padding:11px}
}

/* Four stable scales, with example browsing inside the main image. */
body.exploring .cards{grid-template-columns:repeat(4,minmax(0,1fr))}
body.exploring .mini-card strong{font-size:12px;line-height:1.4;font-weight:500}
.scale-number{display:block;font-size:23px;font-weight:750;letter-spacing:-.8px;margin-bottom:5px}.scale-number small{font-size:13px;color:var(--blue);letter-spacing:0}
#photo{touch-action:pan-y;isolation:isolate}#photo:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.carousel-arrow{position:absolute;z-index:2;top:45%;transform:translateY(-50%);width:44px;height:52px;border:1px solid #ffffffbb;border-radius:12px;background:#ffffffc9;backdrop-filter:blur(8px);color:var(--blue);box-shadow:0 2px 12px #18233012;font:36px/1 sans-serif;cursor:pointer}.carousel-arrow:hover{background:white}.carousel-arrow:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.carousel-arrow:disabled{opacity:.3;cursor:default}.carousel-arrow.previous{left:14px}.carousel-arrow.next{right:14px}
.carousel-count{position:absolute;bottom:16px;right:18px;border-radius:20px;background:#ffffffd9;padding:6px 10px;font-size:12px;color:var(--muted)}
#photo .photo-label{max-width:calc(100% - 105px)}
.image-pending{height:100%;width:100%;min-height:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--blue);gap:10px;background:linear-gradient(145deg,#f2f6f5,#e5eff2);border-radius:8px;padding:25px}.image-pending>span{font-size:46px;font-weight:300}.image-pending strong{font-size:20px}.image-pending small{font-size:12px;color:var(--muted)}
.mini-card .image-pending{padding:8px;border-radius:0;gap:0}.mini-card .image-pending>span{font-size:26px}.mini-card .image-pending strong,.mini-card .image-pending small{display:none}
@media(max-width:900px),(max-height:679px){.mini-card .image-pending{height:130px}}
@media(max-width:650px){body.exploring .cards{grid-template-columns:repeat(4,minmax(0,1fr));gap:6px}body.exploring .mini-card .mini-info{padding:7px 4px}body.exploring .mini-card strong{font-size:9px}.scale-number{font-size:17px;letter-spacing:-.6px}.scale-number small{font-size:10px}.mini-card>img,.mini-card .image-pending{height:70px}.examples-heading{gap:10px}.examples-heading h3{font-size:14px}.examples-heading>span{max-width:110px;text-align:right}.carousel-arrow{width:40px}.image-pending{min-height:250px}.mini-card .image-pending{min-height:0}}
@media(max-width:650px){.examples-heading>span{white-space:normal;min-width:0;flex-shrink:0;line-height:1.4}.examples-heading h3{min-width:0}.scale-number{white-space:nowrap}}

.measurement-source{font-size:11px;line-height:1.35;color:var(--muted,#69717c);margin:-4px 0 8px;display:block}.measurement-source[hidden]{display:none}

/* Square artwork keeps the same composition across explorer, cards and practice. */
.image-note{display:block;color:var(--muted);font-size:11px;line-height:1.4;margin:0 0 8px}.image-note[hidden],.carousel-arrow[hidden]{display:none}
.photo-wrap>img{object-fit:contain}.practice-image>img{object-fit:contain}