/* Ice Age Museum — home page system, pass 2 (photos always whole). Tokens + iam-* classes as drawn on the 1440 / 375 artboards.
   Fonts: <link href="https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600&family=Space+Grotesk:wght@400;500&display=swap" rel="stylesheet">
   Rule: a specimen photo is shown whole, in its own proportion — the frame follows the photo. No object-fit: cover anywhere.
   Breakpoints: ≥1024 rows of three, widths ∝ photo proportion; 768–1023 two masonry columns, hero stacked; ≤767 one column.
   The mockup's fixed heights (hero 836, card widths) are replaced with fluid rules here. */
:root{--iam-bg:#0B0C10;--iam-surface:#191A1E;--iam-bone:#DCD7C9;--iam-cold:#8C92AC;--iam-warm:#A97142;--iam-line:rgba(220,215,201,.13);--iam-line-strong:rgba(220,215,201,.34);--iam-bone-70:rgba(220,215,201,.72);--iam-bone-55:rgba(220,215,201,.56);--iam-photo:#111216;--iam-serif:'Shippori Mincho',Georgia,'Times New Roman',serif;--iam-sans:'Space Grotesk','Helvetica Neue',Arial,sans-serif}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{margin:0;background:#0B0C10;color:#DCD7C9;font-family:'Space Grotesk','Helvetica Neue',Arial,sans-serif}
a{color:#DCD7C9;text-decoration:none}a:hover{color:#8C92AC}
h1,h2,h3,p,dl,dd,dt{margin:0}
.iam-page{background:var(--iam-bg);color:var(--iam-bone);font:400 16px/26px var(--iam-sans);text-align:left;min-height:100vh}
.iam-page img{max-width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:1px solid var(--iam-cold);outline-offset:3px}
.iam-container{width:min(1280px,calc(100% - 160px));margin:0 auto;box-sizing:border-box}
/* header */
.iam-header{height:64px;box-sizing:border-box;border-bottom:1px solid var(--iam-line);background:var(--iam-bg)}
.iam-header__in{height:63px;display:flex;align-items:center;justify-content:space-between}
.iam-mark{display:flex;align-items:center;gap:14px;color:var(--iam-bone)}
.iam-mark:hover{color:var(--iam-bone)}
.iam-mark__icon{flex:none;height:34px;width:auto;display:block;color:var(--iam-bone);transform:scaleX(-1)}
.iam-mark__text{display:flex;flex-direction:column;gap:3px}
[dir=rtl] .iam-mark__icon{transform:none}
.iam-mark__name{font:600 18px/20px var(--iam-serif);letter-spacing:.22em;text-transform:uppercase;white-space:nowrap}
.iam-mark__lab{font:400 11px/14px var(--iam-sans);letter-spacing:.02em;color:var(--iam-cold);white-space:nowrap}
.iam-nav{display:flex;align-items:center;gap:32px;font:400 14px/20px var(--iam-sans)}
.iam-nav a{color:var(--iam-bone-70);white-space:nowrap}.iam-nav a:hover{color:var(--iam-bone)}
.iam-nav a.iam-nav__req{color:var(--iam-warm)}.iam-nav a.iam-nav__req:hover{color:var(--iam-bone)}
.iam-lang{display:flex;align-items:center;gap:8px;padding-left:32px;border-left:1px solid var(--iam-line);height:20px;font:400 13px/20px var(--iam-sans)}
.iam-lang span{color:var(--iam-bone)}.iam-lang i{font-style:normal;color:var(--iam-bone-55)}
.iam-lang a{color:var(--iam-cold);font-family:'Space Grotesk','Shippori Mincho',sans-serif}.iam-lang a:hover{color:var(--iam-bone)}
/* hero: the photo keeps its own proportion, full height, never cropped */
.iam-hero{height:calc(100vh - 64px);min-height:720px;display:flex;background:var(--iam-bg)}
/* the photo is height-driven: width follows its own proportion; max-width only guards very narrow viewports, and even then contain never crops */
.iam-hero__photo{height:100%;width:auto;max-width:42vw;flex-shrink:0;display:block;object-fit:contain;object-position:0 50%;background:var(--iam-photo)}
.iam-hero__body{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;padding:0 80px 0 64px;box-sizing:border-box}
.iam-eyebrow{font:400 12px/16px var(--iam-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--iam-cold)}
.iam-display{font:400 72px/1.08 var(--iam-serif);font-size:clamp(44px,5vw,72px);letter-spacing:-.005em;color:var(--iam-bone);margin:28px 0 0;max-width:740px;text-wrap:balance}
.iam-lead{font:400 18px/28px var(--iam-sans);color:var(--iam-bone-70);margin:28px 0 0;max-width:600px}
.iam-hero__actions{display:flex;gap:12px;margin-top:40px}
.iam-caption{font:400 12px/16px var(--iam-sans);color:var(--iam-bone-55);margin:20px 0 0;letter-spacing:.01em}
/* buttons */
.iam-btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;box-sizing:border-box;border-radius:2px;font:500 15px/20px var(--iam-sans);background:var(--iam-warm);color:#0B0C10;border:1px solid var(--iam-warm);cursor:pointer;white-space:nowrap;text-decoration:none}
.iam-btn:hover{background:#B87C4A;border-color:#B87C4A;color:#0B0C10}
.iam-btn--line{background:transparent;color:var(--iam-bone);border-color:var(--iam-line-strong)}
.iam-btn--line:hover{background:transparent;border-color:var(--iam-bone);color:var(--iam-bone)}
.iam-btn--sm{height:44px;padding:0 16px;font-size:14px;background:transparent;color:var(--iam-warm);border-color:var(--iam-warm)}
.iam-btn--sm:hover{background:transparent;color:var(--iam-bone);border-color:var(--iam-bone)}
/* exhibition strip */
.iam-strip{height:48px;border-top:1px solid var(--iam-line);border-bottom:1px solid var(--iam-line);box-sizing:border-box;background:var(--iam-bg)}
.iam-strip__in{height:46px;display:flex;align-items:center;justify-content:space-between;font:400 13px/18px var(--iam-sans);color:var(--iam-bone-70)}
.iam-strip__in a{color:var(--iam-bone);border-bottom:1px solid var(--iam-line-strong);padding-bottom:1px;white-space:nowrap}
.iam-strip__in a:hover{color:var(--iam-warm);border-color:var(--iam-warm)}
/* facts */
.iam-facts{padding:48px 0}
.iam-facts__row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.iam-fact{padding:0 32px;border-left:1px solid var(--iam-line);box-sizing:border-box}
.iam-fact:first-child{padding-left:0;border-left:0}
.iam-fact__n{font:400 40px/44px var(--iam-sans);font-variant-numeric:tabular-nums;letter-spacing:-.01em;color:var(--iam-bone);white-space:nowrap}
.iam-fact__l{font:400 13px/16px var(--iam-sans);color:var(--iam-bone-55);margin-top:8px}
/* sections */
.iam-section{padding:120px 0}
.iam-section--surface{background:var(--iam-surface)}
.iam-section--ruled .iam-container{border-top:1px solid var(--iam-line);padding-top:120px}
.iam-section--ruled{padding-top:0}
.iam-h2{font:400 48px/54px var(--iam-serif);letter-spacing:-.005em;color:var(--iam-bone);text-wrap:balance}
.iam-sub{font:400 17px/28px var(--iam-sans);color:var(--iam-bone-70);max-width:640px;margin:20px 0 0}
.iam-h3{font:500 24px/30px var(--iam-serif);color:var(--iam-bone)}
.iam-p{font:400 16px/26px var(--iam-sans);color:var(--iam-bone-70);margin:12px 0 0;max-width:520px}
.iam-blocks{display:grid;gap:56px 48px;margin-top:64px}
.iam-blocks--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.iam-blocks--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.iam-block{border-top:1px solid var(--iam-line);padding-top:24px}
/* collection: rows of three (array_chunk of the specimen list); each card grows in proportion to its photo's width/height (--ar),
   so every photo in a row gets the same height and none is cropped. A short last row is capped at 480 px of photo height. */
.iam-grid{display:flex;flex-direction:column;gap:1px;background:var(--iam-line);border:1px solid var(--iam-line);margin-top:64px}
.iam-row{display:flex;gap:1px}
.iam-card{flex:var(--ar,1.5) 1 0;min-width:0;max-width:calc(var(--ar,1.5) * 480px);background:var(--iam-surface);display:flex;flex-direction:column;color:var(--iam-bone);text-decoration:none}
.iam-card:hover{color:var(--iam-bone)}
.iam-card:hover .iam-card__title{color:var(--iam-warm)}
.iam-card__photo{display:block;width:100%;height:auto;object-fit:contain;background:var(--iam-photo);flex-shrink:0}
.iam-card__todo{display:flex;align-items:flex-end;width:100%;aspect-ratio:var(--ar,1.5);padding:12px 16px;box-sizing:border-box;background:var(--iam-photo);font:400 12px/16px var(--iam-sans);letter-spacing:.02em;color:var(--iam-cold);flex-shrink:0}
.iam-card__label{padding:20px 20px 24px;display:flex;flex-direction:column;flex:1;box-sizing:border-box}
.iam-card__title{font:500 22px/28px var(--iam-serif);color:var(--iam-bone)}
.iam-card--featured .iam-card__title{font-size:28px;line-height:34px}
.iam-card__latin{font:italic 400 15px/22px var(--iam-serif);color:var(--iam-cold);margin:2px 0 0}
.iam-data{margin:16px 0 0;display:grid;grid-template-columns:56px minmax(0,1fr);column-gap:12px;font:400 14px/22px var(--iam-sans);font-variant-numeric:tabular-nums}
.iam-data dt{color:var(--iam-bone-55)}.iam-data dd{color:var(--iam-bone)}
/* tucson */
.iam-tucson{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
.iam-tucson__main{padding-right:80px;box-sizing:border-box}
.iam-tucson__side{border-left:1px solid var(--iam-line);padding-left:48px;box-sizing:border-box;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start}
.iam-tucson__side .iam-p{margin:0;max-width:400px}
.iam-tucson__side .iam-btn{margin-top:32px}
.iam-date{font:400 56px/64px var(--iam-sans);font-variant-numeric:tabular-nums;letter-spacing:-.015em;margin:20px 0 0;color:var(--iam-bone);white-space:nowrap}
.iam-tucson__main .iam-sub{margin-top:24px;max-width:560px}
.iam-tucson__main .iam-btn{margin-top:40px}
/* request */
.iam-request{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 80px}
.iam-request .iam-sub{margin-top:24px;max-width:560px}
.iam-form{display:flex;flex-direction:column;gap:28px}
.iam-field{display:flex;flex-direction:column;gap:8px}
.iam-field label{font:400 12px/16px var(--iam-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--iam-cold)}
.iam-field input,.iam-field select,.iam-field textarea{appearance:none;-webkit-appearance:none;background:transparent;border:0;border-bottom:1px solid var(--iam-line-strong);border-radius:0;color:var(--iam-bone);font:400 16px/24px var(--iam-sans);padding:8px 0;outline:none;width:100%;box-sizing:border-box;margin:0}
.iam-field input::placeholder,.iam-field textarea::placeholder{color:var(--iam-bone-55)}
.iam-field input:focus,.iam-field select:focus,.iam-field textarea:focus{border-bottom-color:var(--iam-bone)}
.iam-field textarea{height:88px;resize:vertical;display:block}
.iam-select{position:relative}
.iam-select select{padding-right:24px;cursor:pointer}
.iam-select::after{content:"↓";position:absolute;right:0;top:8px;font:400 16px/24px var(--iam-sans);color:var(--iam-cold);pointer-events:none}
.iam-form .iam-btn{align-self:flex-start;margin-top:12px}
/* footer */
.iam-footer{border-top:1px solid var(--iam-line);padding:40px 0 48px;font:400 14px/20px var(--iam-sans);color:var(--iam-bone-55);box-sizing:border-box}
.iam-footer__in{display:flex;justify-content:space-between;align-items:flex-start;gap:32px}
.iam-footer a{color:var(--iam-bone-70)}.iam-footer a:hover{color:var(--iam-bone)}
.iam-footer__right{display:flex;gap:24px;white-space:nowrap}
.iam-footer a[lang]{font-family:'Space Grotesk','Shippori Mincho',sans-serif}

/* ---- 768–1023: hero stacks (photo whole, centred, capped at 80vh); the collection packs into two masonry columns ---- */
@media (max-width:1023px){
.iam-hero{flex-direction:column;height:auto;min-height:0}
.iam-hero__photo{width:auto;max-width:100%;height:auto;max-height:80vh;margin:0 auto}
.iam-hero__body{padding:48px 0 64px;width:min(1280px,calc(100% - 160px));margin:0 auto;flex:none}
.iam-row{display:contents}
.iam-grid{display:block;column-count:2;column-gap:1px;column-rule:1px solid var(--iam-line);background:none;border:0;border-top:1px solid var(--iam-line)}
.iam-card{max-width:none;border-bottom:1px solid var(--iam-line);break-inside:avoid;display:flex}
}

/* ---- ≤767: phone layout (the 375 artboards) ---- */
@media (max-width:767px){
.iam-container{width:calc(100% - 32px)}
.iam-header{height:56px}.iam-header__in{height:55px}
.iam-header__in{gap:14px}
.iam-mark{gap:10px;min-width:0}.iam-mark__icon{height:28px;flex:none}
.iam-mark__text{min-width:0}
.iam-mark__name{font-size:14px;line-height:16px;letter-spacing:.2em}
/* на 390 px подпись лаборатории упиралась в рамку кнопки Request: держим зазор, многоточие — страховка для совсем узких */
.iam-mark__lab{font-size:10px;line-height:14px;overflow:hidden;text-overflow:ellipsis}
.iam-strip{height:auto;border-top:0;padding:10px 0}
.iam-strip__in{height:auto;display:block;font-size:11px;line-height:16px}
.iam-strip__in p{display:inline}
.iam-strip__in a{white-space:normal}
.iam-hero{flex-direction:column;height:auto;min-height:0}
.iam-hero__photo{width:100%;max-width:none;height:auto;max-height:none;margin:0;object-position:50% 50%}
.iam-hero__body{padding:28px 16px 32px;justify-content:flex-start;flex:none;width:auto;margin:0}
.iam-eyebrow{font-size:11px;line-height:16px;letter-spacing:.12em}
.iam-display{font-size:40px;line-height:44px;margin-top:16px;max-width:none}
.iam-lead{font-size:15px;line-height:22px;margin-top:16px}
.iam-hero__actions{flex-direction:column;gap:8px;margin-top:24px;width:100%}
.iam-hero__actions .iam-btn{width:100%}
.iam-caption{margin-top:16px}
.iam-facts{padding:0;border-top:1px solid var(--iam-line);border-bottom:1px solid var(--iam-line)}
.iam-facts__row{grid-template-columns:repeat(2,minmax(0,1fr))}
.iam-fact{padding:20px 16px 20px 0;border-left:0}
.iam-fact:nth-child(2n){padding:20px 0 20px 16px;border-left:1px solid var(--iam-line)}
.iam-fact:nth-child(n+3){border-top:1px solid var(--iam-line)}
.iam-fact__n{font-size:24px;line-height:28px}
.iam-fact__l{margin-top:6px}
.iam-section{padding:72px 0}
.iam-section--ruled{padding-top:0}
.iam-section--ruled .iam-container{padding-top:72px}
.iam-h2{font-size:32px;line-height:38px}
.iam-sub{font-size:15px;line-height:22px;margin-top:16px}
.iam-grid{margin-top:40px;display:flex;flex-direction:column;gap:1px;background:var(--iam-line);border:1px solid var(--iam-line);column-count:auto}
.iam-row{display:contents}
.iam-card{flex:none;width:100%;max-width:none;border-bottom:0}
.iam-card--featured .iam-card__title{font-size:22px;line-height:28px}
.iam-h3{font-size:22px;line-height:28px}
.iam-p{font-size:15px;line-height:24px;margin-top:10px;max-width:none}
.iam-blocks{grid-template-columns:repeat(1,minmax(0,1fr));gap:32px;margin-top:40px}
.iam-block{padding-top:20px}
.iam-tucson{grid-template-columns:repeat(1,minmax(0,1fr));gap:32px}
.iam-tucson__main{padding-right:0}
.iam-tucson__main .iam-sub{margin-top:20px}
.iam-tucson__main .iam-btn{margin-top:28px}
.iam-tucson__side{border-left:0;padding-left:0;border-top:1px solid var(--iam-line);padding-top:28px}
.iam-tucson__side .iam-btn{margin-top:24px}
.iam-date{font-size:34px;line-height:40px;margin-top:16px}
.iam-request{grid-template-columns:repeat(1,minmax(0,1fr));gap:40px 0}
.iam-request .iam-sub{margin-top:16px}
.iam-form{gap:24px}
.iam-form .iam-btn{align-self:stretch;margin-top:8px}
.iam-footer{padding:32px 0 40px;font-size:13px;line-height:20px}
.iam-footer__in{flex-direction:column;gap:16px}
}


/* ---- header: desktop nav vs the 375 artboard's single "Request" button (added at build, not in the handoff) ---- */
.iam-header__req{display:none}
@media (max-width:767px){.iam-nav{display:none}.iam-header__req{display:inline-flex;height:36px;padding:0 14px;font-size:13px}}
/* на телефонной ширине строка лаборатории целиком не влезала рядом с кнопкой — чуть мельче, зато без обрыва */
@media (max-width:440px){.iam-mark__lab{font-size:9px;letter-spacing:.01em}}
.iam-ex-scale__cap b{white-space:nowrap}
/* Ice Age Museum — exhibit page (single specimen). Loads AFTER iam.css; adds the iam-ex-* classes, the height scale,
   the gallery rows and the pager. Same rule as everywhere: the photo is whole, in its own proportion; no object-fit: cover.
   Breakpoints: ≥1024 photo left + label right; 768–1023 photo above label; ≤767 phone layout with a fixed request bar. */
/* ---- exhibit page: hero = photo whole + label ---- */
.iam-ex-hero{padding:48px 0 64px}
.iam-ex-hero__in{display:flex;gap:64px;align-items:flex-start}
/* whole photo: both limits keep the image's own proportion (width/height auto), so the box IS the photo — portraits are height-bound, landscapes width-bound */
.iam-ex-hero__photo{display:block;width:auto;height:auto;max-height:calc(100vh - 160px);max-width:60%;flex-shrink:0;object-fit:contain;background:var(--iam-photo)}
.iam-ex-label{flex:1;min-width:0;display:flex;flex-direction:column;align-items:flex-start}
.iam-ex-label__no{font:400 12px/16px var(--iam-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--iam-cold)}
.iam-ex-title{font:400 56px/62px var(--iam-serif);letter-spacing:-.005em;color:var(--iam-bone);margin:16px 0 0;text-wrap:balance}
.iam-ex-latin{font:italic 400 20px/28px var(--iam-serif);color:var(--iam-cold);margin:8px 0 0}
.iam-ex-label__body{display:flex;flex-wrap:wrap;gap:32px 48px;margin-top:32px;width:100%}
.iam-ex-label__main{flex:1 1 440px;min-width:0;max-width:460px;display:flex;flex-direction:column;align-items:flex-start}
.iam-data--ex{margin:0;width:100%;grid-template-columns:152px minmax(0,1fr);column-gap:24px;font-size:16px;line-height:26px;border-bottom:1px solid var(--iam-line)}
.iam-data--ex dt,.iam-data--ex dd{border-top:1px solid var(--iam-line);padding:10px 0}
.iam-data--ex dt{font-size:12px;line-height:16px;letter-spacing:.12em;text-transform:uppercase;color:var(--iam-cold);padding-top:15px}
.iam-ex-cta{margin-top:32px}
/* height against a person: two columns generated from a number (--cm), --max = tallest specimen in the collection */
.iam-ex-scale{flex:0 0 195px;margin:0;--max:300}
.iam-ex-scale__title{font:400 12px/16px var(--iam-sans);letter-spacing:.14em;text-transform:uppercase;color:var(--iam-cold);white-space:nowrap}
.iam-ex-scale__plot{display:flex;align-items:flex-end;gap:24px;height:200px;margin-top:20px;border-bottom:1px solid var(--iam-line-strong)}
.iam-ex-scale__col{display:flex;flex-direction:column;justify-content:flex-end;height:100%}
.iam-ex-scale__col--specimen{width:120px}.iam-ex-scale__col--person{width:51px}
.iam-ex-scale__bar{height:calc(var(--cm) / var(--max) * 100%);box-sizing:border-box}
.iam-ex-scale__bar--specimen{width:64px;background:var(--iam-line);border:1px solid var(--iam-line-strong);border-bottom:0}
.iam-ex-scale__bar--person{width:28px;border:1px solid var(--iam-cold);border-bottom:0}
.iam-ex-scale__caps{display:flex;gap:24px;margin-top:10px}
.iam-ex-scale__cap{display:flex;flex-direction:column;gap:2px;font:400 12px/16px var(--iam-sans);color:var(--iam-bone-55)}
.iam-ex-scale__cap--specimen{width:120px}.iam-ex-scale__cap--person{width:51px}
.iam-ex-scale__cap b{font:400 15px/20px var(--iam-sans);font-variant-numeric:tabular-nums;color:var(--iam-bone)}
/* about the species */
.iam-ex-species{padding:0 0 120px}
.iam-ex-species__in{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:80px;align-items:start;border-top:1px solid var(--iam-line);padding-top:120px}
.iam-ex-lead{font:400 40px/48px var(--iam-serif);letter-spacing:-.005em;color:var(--iam-bone);max-width:640px;margin:20px 0 0;text-wrap:balance}
.iam-ex-species .iam-p{margin-top:24px;font-size:17px;line-height:28px;max-width:560px}
.iam-ex-facts{margin:36px 0 0;display:grid;grid-template-columns:88px minmax(0,1fr);column-gap:16px;border-bottom:1px solid var(--iam-line)}
.iam-ex-facts dt,.iam-ex-facts dd{border-top:1px solid var(--iam-line);padding:12px 0}
.iam-ex-facts dt{font:400 12px/16px var(--iam-sans);letter-spacing:.12em;text-transform:uppercase;color:var(--iam-cold);padding-top:16px}
.iam-ex-facts dd{font:400 16px/24px var(--iam-sans);color:var(--iam-bone)}
/* papers and delivery (short, links to the home sections) */
.iam-ex-links{display:flex;gap:40px;margin-top:40px;font:400 14px/20px var(--iam-sans)}
.iam-ex-links a{color:var(--iam-bone-70);border-bottom:1px solid var(--iam-line-strong);padding-bottom:1px}
.iam-ex-links a:hover{color:var(--iam-warm);border-color:var(--iam-warm)}
/* gallery: frames whole, rows of two or three, widths ∝ proportion (same mechanism as the collection) */
.iam-ex-frames{display:flex;flex-direction:column;gap:1px;background:var(--iam-line);border:1px solid var(--iam-line);margin-top:48px}
.iam-ex-frames .iam-row{display:flex;gap:1px}
.iam-ex-frame{flex:var(--ar,1.5) 1 0;min-width:0;max-width:calc(var(--ar,1.5) * 480px);background:var(--iam-surface);display:block}
.iam-ex-frame img{display:block;width:100%;height:auto;object-fit:contain}
.iam-ex-frame__todo{display:flex;align-items:flex-end;aspect-ratio:var(--ar,1.5);padding:12px 16px;box-sizing:border-box;background:var(--iam-photo);font:400 12px/16px var(--iam-sans);letter-spacing:.02em;color:var(--iam-cold)}
/* neighbours */
.iam-ex-pager{border-top:1px solid var(--iam-line);border-bottom:1px solid var(--iam-line)}
.iam-ex-pager__in{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:stretch}
.iam-ex-pager a{display:flex;align-items:center;padding:28px 0;font:400 15px/20px var(--iam-sans);color:var(--iam-bone-70)}
.iam-ex-pager a:hover{color:var(--iam-bone)}
.iam-ex-pager__all{padding:28px 48px;border-left:1px solid var(--iam-line);border-right:1px solid var(--iam-line);justify-content:center}
.iam-ex-pager__next{justify-content:flex-end}
.iam-ex-pager__prev{padding-right:32px}.iam-ex-pager__next{padding-left:32px}
/* fixed request bar, phones only */
.iam-ex-bar{display:none}

/* ---- 768–1023: photo above the label, whole and centred; species text in one column ---- */
@media (max-width:1023px){
.iam-ex-hero__in{flex-direction:column;gap:40px}
.iam-ex-hero__photo{max-width:100%;max-height:80vh;margin:0 auto}
.iam-ex-label__body{flex-wrap:wrap}
.iam-ex-species__in{grid-template-columns:repeat(1,minmax(0,1fr));gap:48px}
.iam-ex-frames .iam-row{display:contents}
.iam-ex-frames{display:block;column-count:2;column-gap:1px;column-rule:1px solid var(--iam-line);background:none;border:0;border-top:1px solid var(--iam-line)}
.iam-ex-frame{max-width:none;border-bottom:1px solid var(--iam-line);break-inside:avoid}
}

/* ---- ≤767: phone layout (the 375 artboard) ---- */
@media (max-width:767px){
.iam-ex-hero{padding:0}
.iam-ex-hero__in{width:100%;flex-direction:column;gap:0}
.iam-ex-hero__photo{width:100%;height:auto;max-width:none;max-height:none}
.iam-ex-label{padding:24px 16px 32px;width:100%;box-sizing:border-box}
.iam-ex-label__no{font-size:11px;letter-spacing:.12em}
.iam-ex-title{font-size:36px;line-height:40px;margin-top:8px}
.iam-ex-latin{font-size:17px;line-height:24px;margin-top:6px}
.iam-ex-label__body{flex-direction:column;gap:36px;margin-top:24px}
.iam-ex-label__main{flex:none;max-width:none;width:100%}
.iam-data--ex{grid-template-columns:104px minmax(0,1fr);column-gap:16px;font-size:15px;line-height:22px}
.iam-data--ex dt{padding-top:13px}
.iam-ex-cta{margin-top:24px;width:100%}
.iam-ex-scale{flex:none}
.iam-ex-scale__plot{height:160px;margin-top:16px}
.iam-ex-species{padding:0 0 56px}
.iam-ex-species__in{grid-template-columns:repeat(1,minmax(0,1fr));gap:32px;padding-top:56px}
.iam-ex-lead{font-size:26px;line-height:32px;margin-top:12px}
.iam-ex-species .iam-p{font-size:15px;line-height:24px;margin-top:16px;max-width:none}
.iam-ex-facts{margin-top:0}
.iam-ex-links{flex-direction:column;gap:12px;margin-top:24px}
.iam-ex-frames{margin-top:24px}
.iam-ex-frames .iam-row{display:contents}
.iam-ex-frame{flex:none;max-width:none;width:100%}
.iam-ex-pager__in{grid-template-columns:repeat(2,minmax(0,1fr))}
.iam-ex-pager__prev{grid-row:1;grid-column:1}
.iam-ex-pager__next{grid-row:1;grid-column:2}
.iam-ex-pager__all{grid-row:2}
.iam-ex-pager a{padding:20px 0;font-size:14px}
.iam-ex-pager__prev{padding-right:16px}.iam-ex-pager__next{padding-left:16px;border-left:1px solid var(--iam-line)}
.iam-ex-pager__all{grid-column:1/3;border-left:0;border-right:0;border-top:1px solid var(--iam-line);padding:20px 0;justify-content:flex-start}
.iam-ex-bar{position:fixed;left:0;right:0;bottom:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;height:calc(64px + env(safe-area-inset-bottom));padding:0 16px env(safe-area-inset-bottom);box-sizing:border-box;background:var(--iam-bg);border-top:1px solid var(--iam-line)}
.iam-page--exhibit{padding-bottom:calc(64px + env(safe-area-inset-bottom))}
.iam-ex-bar__who{display:flex;flex-direction:column;gap:2px;min-width:0}
.iam-ex-bar__who b{font:400 14px/18px var(--iam-serif);color:var(--iam-bone);white-space:nowrap}
.iam-ex-bar__who span{font:400 11px/14px var(--iam-sans);letter-spacing:.08em;text-transform:uppercase;color:var(--iam-cold);white-space:nowrap}
.iam-ex-bar .iam-btn{height:44px;padding:0 16px}
}
/* build: `.iam-page img{max-width:100%}` outranks the handoff's `.iam-ex-hero__photo{max-width:60%}`; on wide screens a
   landscape photo then swallowed the row and the label collapsed to a word-wide column (seen 18-09 at 1880 px) */
@media (min-width:1024px){.iam-page .iam-ex-hero__photo{max-width:60%}}
/* build: two actions under the plaque — request and the specimen's own PDF sheet */
.iam-ex-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.iam-ex-actions .iam-ex-cta{margin-top:0}
@media (max-width:767px){.iam-ex-actions{margin-top:24px}}
/* build: silhouettes instead of bars on the height scale (Kirill, 18-09; PhyloPic CC0 vectors in resources/site/silhouettes).
   Height = --cm/--max of the plot as before; width follows the drawing (--ar = viewBox width/height), so columns and captions
   are sized from the same numbers. */
.iam-ex-scale{--plot:200px;flex:0 1 auto;max-width:100%}
.iam-ex-scale__plot{height:var(--plot)}
.iam-ex-scale__col,.iam-ex-scale__cap{width:calc(var(--cm) / var(--max) * var(--plot) * var(--ar))}
.iam-ex-scale__col--specimen,.iam-ex-scale__cap--specimen{min-width:120px}
.iam-ex-scale__col--person,.iam-ex-scale__cap--person{min-width:51px}
.iam-ex-scale__col{align-items:flex-start}
.iam-ex-scale__fig{display:block;height:calc(var(--cm) / var(--max) * 100%);width:auto}
.iam-ex-scale__fig--specimen{color:var(--iam-bone)}
.iam-ex-scale__fig--person{color:var(--iam-cold)}
@media (max-width:767px){.iam-ex-scale{--plot:160px}}
/* ---- motion (Kirill, 18-09: "плавности, премиальности, аккуратные анимации, тактильность"). A layer over the handoff: no colour,
   spacing or layout changes. Everything is visible at rest; the scroll reveal only bites once the head script has confirmed JS and
   IntersectionObserver and the viewer has not asked for reduced motion (html.iam-js). ---- */
:root{--iam-ease:cubic-bezier(.22,.61,.36,1);--iam-t:.28s}
html{scroll-behavior:smooth}
a,button,.iam-btn,.iam-card__title,.iam-card__photo,.iam-strip__in a,.iam-ex-links a,.iam-field input,.iam-field select,.iam-field textarea{transition:color var(--iam-t) var(--iam-ease),background-color var(--iam-t) var(--iam-ease),border-color var(--iam-t) var(--iam-ease),box-shadow var(--iam-t) var(--iam-ease),transform var(--iam-t) var(--iam-ease),opacity var(--iam-t) var(--iam-ease),filter .5s var(--iam-ease)}
a,button{-webkit-tap-highlight-color:transparent;touch-action:manipulation}
/* buttons: a hair of lift on hover, a press on click */
.iam-btn:hover{transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(169,113,66,.6)}
.iam-btn--line:hover,.iam-btn--sm:hover{box-shadow:0 10px 24px -14px rgba(220,215,201,.3)}
.iam-btn:active{transform:translateY(0) scale(.985);box-shadow:none;transition-duration:.08s}
/* nav: a hairline that draws from the reading start */
.iam-nav>a{position:relative}
.iam-nav>a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:currentColor;transform:scaleX(0);transform-origin:0 50%;transition:transform var(--iam-t) var(--iam-ease)}
[dir=rtl] .iam-nav>a::after{transform-origin:100% 50%}
.iam-nav>a:hover::after,.iam-nav>a:focus-visible::after{transform:scaleX(1)}
/* collection cards and gallery frames: the surface warms and the photo brightens a touch — the frame never moves or crops */
.iam-card{transition:background-color .4s var(--iam-ease)}
.iam-card:hover{background:#1F2025}
.iam-card:hover .iam-card__photo{filter:brightness(1.06)}
.iam-ex-frame img{transition:filter .5s var(--iam-ease)}
.iam-ex-frame:hover img{filter:brightness(1.06)}
/* pager: the arrows lean the way they point */
.iam-ex-pager a{transition:color var(--iam-t) var(--iam-ease),transform var(--iam-t) var(--iam-ease)}
.iam-ex-pager__prev:hover{transform:translateX(-3px)}.iam-ex-pager__next:hover{transform:translateX(3px)}
[dir=rtl] .iam-ex-pager__prev:hover{transform:translateX(3px)}[dir=rtl] .iam-ex-pager__next:hover{transform:translateX(-3px)}
/* form: the underline grows from the reading start on focus */
.iam-field input,.iam-field select,.iam-field textarea{background-image:linear-gradient(var(--iam-bone),var(--iam-bone));background-repeat:no-repeat;background-position:0 100%;background-size:0 1px;transition:background-size .4s var(--iam-ease),border-color var(--iam-t) var(--iam-ease)}
[dir=rtl] .iam-field input,[dir=rtl] .iam-field select,[dir=rtl] .iam-field textarea{background-position:100% 100%}
.iam-field input:focus,.iam-field select:focus,.iam-field textarea:focus{background-size:100% 1px}
/* first paint: the hero photo settles in, the label rises after it */
@keyframes iam-fade{from{opacity:0}to{opacity:1}}
@keyframes iam-rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.iam-hero__photo,.iam-ex-hero__photo{animation:iam-fade .9s var(--iam-ease) both}
.iam-hero__body>*,.iam-ex-label>*{animation:iam-rise .7s var(--iam-ease) both}
.iam-hero__body>:nth-child(2),.iam-ex-label>:nth-child(2){animation-delay:.08s}
.iam-hero__body>:nth-child(3),.iam-ex-label>:nth-child(3){animation-delay:.16s}
.iam-hero__body>:nth-child(4),.iam-ex-label>:nth-child(4){animation-delay:.24s}
.iam-hero__body>:nth-child(5){animation-delay:.32s}
.iam-ex-bar{animation:iam-rise .5s .4s var(--iam-ease) both}
/* scroll reveal: blocks rise as they enter, siblings staggered by --i (set by the script); the silhouettes grow from the baseline */
html.iam-js :is(.iam-fact,.iam-h2,.iam-sub,.iam-block,.iam-card,.iam-tucson__main,.iam-tucson__side,.iam-request>div,.iam-form,.iam-ex-species__in>*,.iam-ex-frame,.iam-ex-scale,.iam-ex-links){opacity:0;transform:translateY(16px);transition:opacity .7s var(--iam-ease),transform .7s var(--iam-ease);transition-delay:calc(var(--i,0) * 70ms)}
html.iam-js .iam-in.iam-in{opacity:1;transform:none} /* doubled: must outrank the :is() list, whose specificity is that of `.iam-request>div` */
.iam-ex-scale__fig{transform-origin:50% 100%;transition:transform .9s var(--iam-ease)}
html.iam-js .iam-ex-scale:not(.iam-in) .iam-ex-scale__fig{transform:scaleY(0)}
.iam-ex-scale__fig--person{transition-delay:.15s}
@media (prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
*,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-delay:0s!important;transition-delay:0s!important}
html.iam-js :is(.iam-fact,.iam-h2,.iam-sub,.iam-block,.iam-card,.iam-tucson__main,.iam-tucson__side,.iam-request>div,.iam-form,.iam-ex-species__in>*,.iam-ex-frame,.iam-ex-scale,.iam-ex-links){opacity:1;transform:none}
html.iam-js .iam-ex-scale:not(.iam-in) .iam-ex-scale__fig{transform:none}
}
@media print{html.iam-js :is(.iam-fact,.iam-h2,.iam-sub,.iam-block,.iam-card,.iam-tucson__main,.iam-tucson__side,.iam-request>div,.iam-form,.iam-ex-species__in>*,.iam-ex-frame,.iam-ex-scale,.iam-ex-links){opacity:1;transform:none}html.iam-js .iam-ex-scale__fig{transform:none}}
/* build: the handoff's `.iam-ex-pager a{padding:28px 0}` outranks `.iam-ex-pager__all{padding:28px 48px}` and the prev/next paddings,
   so "All specimens" sat glued to its rules (Kirill, 18-09) — same rules, one step more specific, logical sides for RTL */
.iam-ex-pager a.iam-ex-pager__all{padding:28px 48px}
.iam-ex-pager a.iam-ex-pager__prev{padding-inline-end:32px}.iam-ex-pager a.iam-ex-pager__next{padding-inline-start:32px}
@media (max-width:767px){.iam-ex-pager a.iam-ex-pager__all{padding:20px 0}.iam-ex-pager a.iam-ex-pager__prev{padding-inline-end:16px}.iam-ex-pager a.iam-ex-pager__next{padding-inline-start:16px}}
/* ---- lightbox (Kirill, 18-09): the photo whole, in its own proportion, on the page's own black; counter and caption below,
   edge zones and the two halves of the photo page through it, × closes ---- */
.iam-lb-link{display:block;cursor:zoom-in}
.iam-ex-hero__photo[data-lb]{cursor:zoom-in}
.iam-lb{position:fixed;inset:0;z-index:100;background:rgba(11,12,16,.97);display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity .3s var(--iam-ease),visibility 0s .3s}
.iam-lb.is-open{opacity:1;visibility:visible;transition:opacity .3s var(--iam-ease),visibility 0s}
html.iam-lb-open{overflow:hidden}
.iam-lb__fig{margin:0;display:flex;flex-direction:column;align-items:flex-start;gap:14px;max-width:calc(100vw - 200px)}
.iam-lb__img{display:block;max-width:calc(100vw - 200px);max-height:calc(100vh - 140px);width:auto;height:auto;object-fit:contain;cursor:pointer;background:var(--iam-photo);transition:opacity .25s var(--iam-ease)}
.iam-lb__img.is-loading{opacity:0}
.iam-lb__bar{display:flex;gap:16px;align-items:baseline;font:400 13px/18px var(--iam-sans);color:var(--iam-bone-55);width:100%}
.iam-lb__n{font-weight:400;font-variant-numeric:tabular-nums;letter-spacing:.08em;color:var(--iam-bone);white-space:nowrap;direction:ltr;unicode-bidi:isolate} /* "02 / 04" must not flip in RTL */
.iam-lb__close,.iam-lb__nav{position:absolute;appearance:none;-webkit-appearance:none;background:none;border:0;padding:0;margin:0;color:var(--iam-bone-70);font:400 22px/1 var(--iam-sans);cursor:pointer;transition:color var(--iam-t) var(--iam-ease),opacity var(--iam-t) var(--iam-ease)}
.iam-lb__close{top:12px;right:20px;width:48px;height:48px;font-size:30px;line-height:48px;text-align:center;z-index:2} /* above the edge zones, which run the full height */
.iam-lb__close::before{content:"×"}
[dir=rtl] .iam-lb__close{right:auto;left:20px}
.iam-lb__nav{top:72px;bottom:0;width:18%;opacity:.55;display:flex;align-items:center;justify-content:center;font-size:26px}
.iam-lb__nav--prev{left:0}.iam-lb__nav--next{right:0}
.iam-lb__nav--prev::before{content:"←"}.iam-lb__nav--next::before{content:"→"}
[dir=rtl] .iam-lb__nav--prev{left:auto;right:0}[dir=rtl] .iam-lb__nav--next{right:auto;left:0}
[dir=rtl] .iam-lb__nav--prev::before{content:"→"}[dir=rtl] .iam-lb__nav--next::before{content:"←"}
.iam-lb__nav::before,.iam-lb__close::before{display:block;transition:transform var(--iam-t) var(--iam-ease)}
.iam-lb__nav:hover,.iam-lb__close:hover{color:var(--iam-bone);opacity:1}
.iam-lb__nav--prev:hover::before{transform:translateX(-3px)}.iam-lb__nav--next:hover::before{transform:translateX(3px)}
[dir=rtl] .iam-lb__nav--prev:hover::before{transform:translateX(3px)}[dir=rtl] .iam-lb__nav--next:hover::before{transform:translateX(-3px)}
.iam-lb__close:focus-visible,.iam-lb__nav:focus-visible{outline:1px solid var(--iam-cold);outline-offset:-4px}
@media (max-width:767px){
.iam-lb__fig,.iam-lb__img{max-width:calc(100vw - 32px)}
.iam-lb__img{max-height:calc(100vh - 120px)}
.iam-lb__nav{width:22%;opacity:0}
.iam-lb__close{top:4px;right:4px}[dir=rtl] .iam-lb__close{left:4px}
}
/* build: the select's arrow and its padding sit at the reading end, so in Arabic they move to the left */
[dir=rtl] .iam-select select{padding-right:0;padding-left:24px}[dir=rtl] .iam-select::after{right:auto;left:0}
/* build: the 768–1023 rule `.iam-ex-frames{column-count:2}` also matches phones, where the handoff sets each frame to 100% —
   so the gallery packed into two 171 px columns at 375 (seen 18-09). Phones get one column, as the collection grid does. */
@media (max-width:767px){.iam-ex-frames{display:flex;flex-direction:column;gap:1px;column-count:auto;background:var(--iam-line);border:1px solid var(--iam-line)}.iam-ex-frame{border-bottom:0}}
/* build: the handoff draws dividers and gutters with physical left/right; in Arabic the reading direction flips, so they move
   to the inline-start side (seen 18-09: the facts divider sat on the outer left edge at 375) */
[dir=rtl] .iam-lang{padding-left:0;padding-right:32px;border-left:0;border-right:1px solid var(--iam-line)}
[dir=rtl] .iam-fact{border-left:0;border-right:1px solid var(--iam-line)}
[dir=rtl] .iam-fact:first-child{border-right:0;padding-right:0;padding-left:32px}
[dir=rtl] .iam-hero__body{padding:0 64px 0 80px}
[dir=rtl] .iam-tucson__main{padding-right:0;padding-left:80px}
[dir=rtl] .iam-tucson__side{border-left:0;border-right:1px solid var(--iam-line);padding-left:0;padding-right:48px}
@media (max-width:1023px){[dir=rtl] .iam-hero__body{padding:48px 0 64px}}
@media (max-width:767px){
[dir=rtl] .iam-hero__body{padding:28px 16px 32px}
[dir=rtl] .iam-fact{padding:20px 0 20px 16px;border-right:0}
[dir=rtl] .iam-fact:nth-child(2n){padding:20px 16px 20px 0;border-left:0;border-right:1px solid var(--iam-line)}
[dir=rtl] .iam-tucson__main{padding-left:0}
[dir=rtl] .iam-tucson__side{border-right:0;padding-right:0}
}
/* build: the phone hides .iam-nav and with it the language switch (Kirill, 18-09: "на мобилке нет выбора языка") — a slim bar
   under the header on phones, and the languages in the footer at every size (the handoff's `.iam-footer a[lang]` rule was waiting for them) */
.iam-langbar{display:none}
.iam-footer__lang{display:inline-flex;gap:8px}.iam-footer__lang i{font-style:normal;color:var(--iam-bone-55)}.iam-footer__lang span{color:var(--iam-bone)}
@media (max-width:767px){
.iam-langbar{display:flex;align-items:center;gap:10px;height:36px;padding:0 16px;border-bottom:1px solid var(--iam-line);font:400 13px/20px var(--iam-sans)}
.iam-langbar span{color:var(--iam-bone)}.iam-langbar i{font-style:normal;color:var(--iam-bone-55)}
.iam-langbar a{color:var(--iam-cold);font-family:'Space Grotesk','Shippori Mincho',sans-serif}.iam-langbar a:hover{color:var(--iam-bone)}
.iam-footer__right{flex-wrap:wrap;gap:12px 24px}
}

/* build (Kirill, 18-09): photographs are copyright — one quiet line under the footer, on every page and in every language */
.iam-footer__in{flex-wrap:wrap}
.iam-footer__copy{flex-basis:100%;margin:0;font-size:12px;line-height:18px;color:var(--iam-bone-55)}
/* build: the fixed request bar on phones must not sit on the footer's last line */
@media (max-width:767px){.iam-page--exhibit .iam-footer{padding-bottom:104px}}

/* build (Kirill, 18-09): the loupe from the paleoart redesign lightbox — desktop with a real mouse only. Hover the photo to inspect at 2.5×, wheel dials 1.5–6× */
.iam-lb__loupe{position:fixed;width:240px;height:240px;border-radius:50%;pointer-events:none;display:none;z-index:3;background-repeat:no-repeat;background-color:var(--iam-photo);mask-image:radial-gradient(circle,#000 65%,rgba(0,0,0,.85) 78%,rgba(0,0,0,.5) 90%,transparent 100%);-webkit-mask-image:radial-gradient(circle,#000 65%,rgba(0,0,0,.85) 78%,rgba(0,0,0,.5) 90%,transparent 100%)}
.iam-lb__loupe::before{content:"";position:absolute;inset:0;border-radius:50%;pointer-events:none;background:radial-gradient(ellipse 60% 40% at 35% 30%,rgba(255,255,255,.12) 0%,transparent 70%),radial-gradient(ellipse 30% 20% at 65% 70%,rgba(255,255,255,.04) 0%,transparent 60%)}
.iam-lb__loupe::after{content:"";position:absolute;inset:-3px;border-radius:50%;pointer-events:none;border:2px solid rgba(169,113,66,.55);box-shadow:0 0 0 1px rgba(0,0,0,.9),inset 0 0 8px 2px rgba(80,60,200,.06),inset 0 0 12px 4px rgba(200,60,60,.04),0 4px 24px rgba(0,0,0,.5),0 12px 48px rgba(0,0,0,.3);background:linear-gradient(to right,transparent calc(50% - .5px),rgba(169,113,66,.25) calc(50% - .5px),rgba(169,113,66,.25) calc(50% + .5px),transparent calc(50% + .5px)),linear-gradient(to bottom,transparent calc(50% - .5px),rgba(169,113,66,.25) calc(50% - .5px),rgba(169,113,66,.25) calc(50% + .5px),transparent calc(50% + .5px))}
.iam-lb__hint{position:absolute;top:26px;left:50%;transform:translateX(-50%);display:none;align-items:center;gap:14px;font:400 12px/16px var(--iam-sans);letter-spacing:.08em;text-transform:uppercase;color:var(--iam-bone-55);opacity:0;transition:opacity .4s var(--iam-ease);pointer-events:none;white-space:nowrap}
.iam-lb__hint b{font-weight:400;color:var(--iam-bone);font-variant-numeric:tabular-nums;min-width:3ch}
.iam-lb__hint.is-on{opacity:1}
@media (hover:hover) and (pointer:fine) and (min-width:1024px){.iam-lb__hint{display:flex}}