@font-face{font-family:AtlasSong;src:url('assets/song.woff2?edition=9') format('woff2');font-display:swap;font-weight:400}
:root{color-scheme:light;--paper:#f5f5ef;--page:#fffefa;--ink:#293d32;--text:#3e473f;--muted:#626b60;--line:#ccd2c5;--green:#385a40;--wash:#e5eadd;--ease:cubic-bezier(.2,.7,.2,1);font-family:AtlasSong,'Songti SC','SimSun',serif;font-size:18px;color:var(--text);background:var(--paper)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}h1,h2,h3,p,figure{margin:0}h1,h2,h3{font-weight:400;color:var(--ink)}button,input,select{font:inherit;color:inherit}button,a,input,select{font-size:18px}button{cursor:pointer;touch-action:manipulation;border:0;border-radius:0;background:none;min-height:44px}button:active{transform:translateY(1px)}button:disabled{opacity:.35;cursor:default}a{color:inherit;text-underline-offset:5px}img{display:block;max-width:100%}p{line-height:1.85}[hidden]{display:none!important}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:2px solid var(--green);outline-offset:4px}.masthead{max-width:1640px;margin:auto;min-height:92px;padding:20px 40px;display:grid;grid-template-columns:1fr auto 1fr;gap:35px;align-items:center;border-bottom:1px solid var(--line)}.identity{display:flex;align-items:baseline;gap:20px}.identity h1{font-size:36px;line-height:1.4;white-space:nowrap;letter-spacing:2px}.identity>span{font-size:20px;color:var(--muted)}.masthead nav{display:flex;gap:32px;align-items:center}.masthead nav button{padding:5px 0;border-bottom:2px solid transparent;white-space:nowrap}.masthead nav button[aria-pressed=true]{border-bottom-color:var(--green);color:var(--green)}.total{text-align:right;color:var(--muted);white-space:nowrap}.atlas-shell{max-width:1640px;margin:auto;display:grid;grid-template-columns:200px minmax(0,1fr);gap:34px;padding:30px 40px 60px}.directory{align-self:start;position:sticky;top:24px;max-height:calc(100dvh - 48px);overflow:auto;scrollbar-width:thin;padding-right:18px}.group-nav{display:grid;gap:5px;padding-bottom:24px;border-bottom:1px solid var(--line)}.group-nav button{display:flex;align-items:center;justify-content:space-between;text-align:left;padding:8px 14px}.group-nav button[aria-pressed=true]{background:var(--green);color:var(--page)}.group-nav button:hover:not([aria-pressed=true]){background:var(--wash)}.group-nav span{font-size:18px}.species-index{padding-top:22px}.species-index summary{font-size:22px;cursor:pointer;min-height:44px;line-height:1.5;padding-block:4px 12px;list-style:none}.species-index summary::-webkit-details-marker{display:none}.species-index summary::after{content:'−';float:right}.species-index:not([open]) summary::after{content:'＋'}#species-index{display:grid;gap:2px}#species-index button{text-align:left;line-height:1.55;padding:8px 12px;border-left:2px solid transparent}#species-index button:hover{border-left-color:var(--green);background:var(--wash)}.catalog{min-width:0}.catalog-tools{display:grid;grid-template-columns:minmax(240px,1fr) minmax(160px,260px) minmax(120px,160px);gap:16px;align-items:center}.search-control{display:flex;align-items:center;gap:14px;border:1px solid var(--line);background:var(--page);padding:0 14px;min-width:0;height:48px}.search-control span{white-space:nowrap}.search-control input{width:100%;min-width:0;height:44px;padding:4px 0;border:0;border-radius:0;background:transparent;outline-offset:1px}.search-control input::placeholder{color:var(--muted);opacity:1}select{width:100%;height:48px;min-width:0;padding:8px 30px 8px 12px;border:1px solid var(--line);border-radius:0;background:var(--page)}.catalog-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:26px 0 19px}.catalog-heading h2{font-size:29px;line-height:1.5}.catalog-heading output{color:var(--muted);font-size:18px}.atlas-group+.atlas-group{margin-top:38px}.group-title{display:flex;align-items:baseline;gap:15px;border-top:1px solid var(--line);padding-top:18px;margin-bottom:18px}.group-title h3{font-size:25px}.group-title span{color:var(--muted);font-size:18px}.plates{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.plate{background:var(--page);border:1px solid var(--line);min-width:0;display:flex;flex-direction:column}.plate-photo{display:block;position:relative;width:100%;aspect-ratio:3/2;padding:0;min-height:0;overflow:hidden;background:var(--wash)}.plate-photo img{position:absolute;inset:0;width:100%;height:100%;max-width:100%;max-height:100%;object-fit:cover;transition:transform .65s var(--ease)}.plate-photo:hover img{transform:scale(1.035)}.plate figcaption{padding:19px 22px 20px;display:flex;flex-direction:column;flex:1}.plate-title-line{display:flex;justify-content:space-between;align-items:baseline;gap:12px}.plate-title{font-size:28px;text-align:left;padding:0;line-height:1.5;min-height:0}.open-mark{font-size:25px;color:var(--green)}.plate-latin{font-size:19px;font-style:italic;line-height:1.6;color:var(--muted);margin-top:5px;overflow-wrap:anywhere}.plate-diagnostic{font-size:18px;line-height:1.8;margin-top:14px}.plate-record{display:flex;justify-content:space-between;gap:14px;align-items:baseline;padding-top:16px;margin-top:auto;font-size:18px;color:var(--muted)}.plate-record span:first-child{overflow-wrap:anywhere}.plate-record span:last-child{white-space:nowrap}.all-photos .plates{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.all-photos .plate figcaption{padding:15px 16px 17px}.all-photos .plate-title{font-size:23px}.all-photos .plate-latin{font-size:18px}.all-photos .plate-photo img{object-fit:cover}.all-photos .plate-record{font-size:18px}.empty{padding:70px 0}.empty p{margin-bottom:20px}.solid-button{background:var(--green);color:var(--page);padding:10px 22px}.text-button{padding:4px 0;min-height:44px;border-bottom:1px solid transparent;white-space:nowrap}.text-button:hover{color:var(--green);border-bottom-color:var(--green)}
/* The dialog is the specimen page. Photos and text retain their own column widths. */
dialog{width:min(1510px,96vw);max-width:1510px;max-height:94dvh;padding:0;border:1px solid var(--line);background:var(--page);color:var(--text);overflow:auto;overscroll-behavior:contain}dialog::backdrop{background:#dce1d6e8;backdrop-filter:blur(5px)}dialog[open]{animation:page-in .35s var(--ease)}@keyframes page-in{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}.viewer-head{position:sticky;top:0;z-index:3;display:flex;align-items:center;justify-content:space-between;gap:20px;background:var(--page);padding:15px 28px;border-bottom:1px solid var(--line)}.viewer-head h2{font-size:27px;line-height:1.6}.close-button{white-space:nowrap;padding:4px 0}.viewer-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(320px,360px);gap:30px;padding:28px}.specimen{min-width:0}.stage{position:relative;width:100%;aspect-ratio:3/2;background:var(--wash);overflow:hidden;isolation:isolate}.scene{position:absolute;max-width:none;transform-origin:0 0;transition:transform .8s var(--ease)}.focus-photo{position:absolute;inset:0;display:block;width:100%;height:100%;max-width:none;object-fit:cover;opacity:0;pointer-events:none;transition:opacity .35s var(--ease);background:var(--wash)}.stage.found .focus-photo.ready{opacity:1;transition-delay:.45s}.stage.instant .focus-photo.ready{transition-delay:0s}.hotspot{position:absolute;padding:0;min-width:40px;min-height:40px;opacity:0;border:2px solid var(--page);outline:2px solid var(--green);border-radius:50%;box-shadow:0 0 0 12px #fffefa40;z-index:1}.stage.hint .hotspot,.hotspot:focus-visible{opacity:1}.stage.found .hotspot{display:none}.tap-mark{position:absolute;width:32px;height:32px;border:1px solid var(--page);border-radius:50%;outline:1px solid var(--green);opacity:0;pointer-events:none;transform:translate(-50%,-50%)}.tap-mark.show{animation:tap .55s forwards}@keyframes tap{from{opacity:1;scale:.6}to{opacity:0;scale:1.7}}.photo-toolbar{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:14px;flex-wrap:wrap}#viewer-place{font-size:18px;color:var(--muted)}.filmstrip{display:flex;gap:10px;overflow:auto;padding:20px 0 8px;scrollbar-width:thin}.filmstrip button{padding:3px;width:112px;min-width:112px;border:1px solid transparent}.filmstrip button[aria-current=true]{border-color:var(--green)}.filmstrip img{width:104px;height:70px;object-fit:cover}.pagination{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:6px}.species-page{min-width:0;padding-left:24px;border-left:1px solid var(--line)}.species-page h3{font-size:34px;line-height:1.5}.latin{font-size:20px;font-style:italic;line-height:1.7;margin-top:7px;overflow-wrap:anywhere}.classification{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;color:var(--muted);font-size:18px}.species-intro{margin-top:22px;font-size:18px;line-height:1.9}.account-section{margin-top:24px}.account-section h4{font:inherit;color:var(--ink);margin:0 0 7px;font-size:21px}.account-section p{font-size:18px;line-height:1.9}.species-page details{margin-top:22px;font-size:18px}.species-page summary{cursor:pointer;min-height:44px;line-height:1.7;padding:8px 0}.photo-data{font-size:18px;line-height:1.9;overflow-wrap:anywhere}.photo-data a{display:inline-block;margin-top:12px}.source-link{display:inline-block;margin-top:24px;font-size:18px}.portrait .viewer-body{grid-template-columns:minmax(0,.76fr) minmax(350px,1fr)}.portrait .stage{aspect-ratio:1279/1706}.portrait .focus-photo{object-fit:contain}.image-error{position:absolute;inset:0;display:grid;place-content:center;background:var(--wash);text-align:center;gap:15px;padding:20px}.image-error button{border:1px solid var(--green);padding:7px 18px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:-100px;left:20px;z-index:5;background:var(--page);padding:15px}.skip:focus{top:10px}
@media(min-width:1650px){.plates{grid-template-columns:repeat(3,minmax(0,1fr))}.plate figcaption{padding-inline:20px}.plate-title{font-size:27px}.plate-diagnostic{font-size:18px}}
@media(max-width:1180px){.masthead{padding-inline:26px;gap:20px}.atlas-shell{padding-inline:26px;grid-template-columns:170px minmax(0,1fr);gap:24px}.directory{padding-right:10px}.catalog-tools{grid-template-columns:minmax(0,1fr) 180px}.catalog-tools #family-filter{grid-column:2;grid-row:1}.catalog-tools #place-filter{grid-column:1/-1;width:100%}.plate figcaption{padding:16px 17px}.plate-title{font-size:25px}.all-photos .plates{grid-template-columns:repeat(2,minmax(0,1fr))}.viewer-body{grid-template-columns:minmax(0,1fr) 315px;gap:24px;padding:24px}.species-page{padding-left:22px}.portrait .viewer-body{grid-template-columns:minmax(0,.8fr) minmax(300px,1fr)}}
@media(max-width:850px){.masthead{grid-template-columns:1fr auto;min-height:82px;padding:17px 20px}.identity{gap:12px}.identity h1{font-size:31px}.identity>span{font-size:18px}.total{display:none}.masthead nav{gap:20px}.atlas-shell{padding:22px 20px 40px;grid-template-columns:1fr;gap:22px}.directory{position:static;max-height:none;overflow:visible;padding:0}.group-nav{display:flex;padding:0;gap:5px;border:0}.group-nav button{flex:1;justify-content:center;gap:10px;padding:8px 10px;white-space:nowrap}.species-index{padding-top:10px;border-bottom:1px solid var(--line)}.species-index summary{font-size:20px;padding:8px 0 12px}#species-index{grid-template-columns:repeat(3,minmax(0,1fr));gap:2px}#species-index button{padding:8px;font-size:18px}.catalog-tools{grid-template-columns:minmax(0,1fr) 170px}.catalog-heading{padding-top:20px}.viewer-body,.portrait .viewer-body{grid-template-columns:1fr}.species-page{border:0;border-top:1px solid var(--line);padding:24px 0 0}.portrait .stage{aspect-ratio:1/1;max-height:none}.portrait .scene{object-fit:contain}.viewer-head{padding:12px 20px}.viewer-head h2{font-size:25px}}
@media(max-width:560px){.masthead{padding:16px;gap:12px}.identity h1{font-size:29px}.identity>span{display:none}.masthead nav{gap:15px}.masthead nav button{font-size:18px}.atlas-shell{padding:18px 16px 32px;gap:18px}.group-nav{gap:0}.group-nav button{font-size:18px;gap:5px;padding:7px 8px}.group-nav span{display:none}#species-index{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-tools{grid-template-columns:minmax(0,1fr) 128px;gap:10px}.search-control{gap:8px;padding:0 10px}.search-control input{font-size:18px}.catalog-tools select{font-size:18px;padding-left:10px}.catalog-heading h2{font-size:27px}.catalog-heading output{font-size:18px}.plates,.all-photos .plates{grid-template-columns:1fr;gap:22px}.plate figcaption{padding:17px 18px 19px}.plate-title{font-size:28px}.plate-diagnostic{font-size:18px}.all-photos .plate-title{font-size:25px}.group-title h3{font-size:24px}.atlas-group+.atlas-group{margin-top:30px}dialog{width:100vw;max-width:100vw;height:100dvh;max-height:100dvh;margin:0;border:0}.viewer-head{padding:11px 16px}.viewer-head h2{font-size:24px}.viewer-body{padding:16px;gap:18px}.photo-toolbar{gap:10px}#viewer-place{width:100%;font-size:18px}.filmstrip button{width:98px;min-width:98px}.filmstrip img{width:90px;height:60px}.species-page h3{font-size:32px}.species-page{padding-top:20px}.account-section{margin-top:22px}.pagination button{font-size:18px}.portrait .stage{aspect-ratio:1/1}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;transition-delay:0ms!important}}

/* Small watercolor feather accents leave the photograph unobstructed. */
.nickname-sticker{position:absolute;top:12px;right:13px;z-index:2;display:grid;place-items:center;width:106px;height:48px;max-width:none;padding:0 5px 1px;background:url('assets/feather-sticker.png') center/100% 100% no-repeat;color:#213D2C;font-family:AtlasSong,'Songti SC',serif;font-size:18px;line-height:1.3;white-space:nowrap;transform:rotate(-3deg);border:0;border-radius:0;box-shadow:none;filter:none;pointer-events:none}.nickname-grebe{transform:rotate(-4deg)}.nickname-crow{transform:rotate(3deg)}.nickname-dove{transform:rotate(-2deg)}.nickname-sticker::before,.nickname-sticker::after{content:none}.stage .nickname-sticker{top:14px;right:15px}.all-photos .nickname-sticker{width:100px;height:45px;font-size:18px;padding:0 4px 1px}
.find-sticker{position:absolute;left:15px;bottom:16px;z-index:2;display:grid;place-items:center;width:132px;height:52px;min-height:44px;padding:0 8px;background:url('assets/feather-sticker.png') center/100% 100% no-repeat;color:#213D2C;border:0;border-radius:0;box-shadow:none;filter:none;transform:rotate(-2deg);font-family:AtlasSong,'Songti SC',serif;font-size:18px;line-height:1.4;text-align:center;transition:transform .25s var(--ease)}.find-sticker:hover{transform:rotate(0deg) translateY(-1px)}.find-sticker:active{transform:rotate(0deg)}.find-sticker span{display:block}.stage.clear-subject .hotspot{display:none}.photo-toolbar{justify-content:space-between;min-height:45px}
@media(max-width:560px){.nickname-sticker{top:10px;right:11px;width:100px;height:45px;font-size:18px}.stage .nickname-sticker{top:11px;right:12px}.find-sticker{left:11px;bottom:12px;width:126px;height:50px;font-size:18px}.photo-toolbar #viewer-place{width:auto;flex:1}.photo-toolbar{gap:12px}.photo-toolbar #return-scene{font-size:18px}}

/* Still photos remain the default; motion is played only on request. */
.motion-toggle{align-self:flex-start;min-height:44px;margin:9px 0 0;padding:5px 0;color:var(--green);font-size:18px;border-bottom:1px solid var(--green);line-height:1.6}.motion-toggle[aria-pressed=true]{color:var(--ink)}.motion-playing .plate-photo img{object-fit:contain}.motion-photo{position:absolute;inset:0;z-index:1;display:block;width:100%;height:100%;max-width:none;object-fit:contain;background:var(--wash)}.stage.playing-motion .hotspot,.stage.playing-motion .find-sticker{display:none}.motion-thumb{position:relative}.motion-thumb>span{position:absolute;inset:3px;display:grid;place-items:center;font-family:serif;font-size:27px;color:#fffefa;text-shadow:0 1px 4px #1d3527;background:#213d2524}.photo-toolbar #motion-toggle{margin-left:auto}.identity>span{white-space:nowrap}.total{font-size:18px}
@media(max-width:1180px){.identity>span{font-size:18px}.identity{gap:12px}.masthead{gap:18px}.masthead nav{gap:24px}}
@media(max-width:980px){.identity>span{display:none}}
@media(max-width:560px){.photo-toolbar #motion-toggle{margin-left:0}.motion-toggle{font-size:18px}.photo-toolbar #viewer-place{flex-basis:100%}}

/* Desktop catalog density; the specimen dialog retains its existing dimensions. */
@media(min-width:1024px){.plates,.all-photos .plates{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.plate figcaption{padding:15px 16px 17px}.plate-title{font-size:24px}.plate-latin{font-size:18px}.plate-diagnostic{font-size:18px;margin-top:11px}.plate-record{flex-wrap:wrap;gap:5px 12px;padding-top:12px}.plate-record span:first-child{flex-basis:100%}.plate-photo .nickname-sticker{top:9px;right:10px;width:92px;height:42px;font-size:18px}.motion-toggle{margin-top:7px}}

/* Compact, naturally sized captions and a small independent media control. */
.plates{align-items:start}.plate{align-self:start}.plate-media{position:relative;aspect-ratio:3/2;min-width:0;background:var(--wash)}.plate-media .plate-photo{height:100%;aspect-ratio:auto}.plate figcaption{display:block;flex:none;padding:13px 16px 15px}.plate-record{display:grid;grid-template-columns:1fr;gap:3px;margin-top:12px;padding-top:0;line-height:1.65}.plate-diagnostic{margin-top:10px;line-height:1.7}.plate-media .motion-toggle{position:absolute;right:10px;bottom:10px;z-index:2;align-self:auto;min-height:32px;margin:0;padding:4px 9px;border:1px solid #c6cebf;border-radius:3px;background:#fffefaf2;color:var(--green);font-size:16px;line-height:1.35;box-shadow:0 1px 3px #233d2518;white-space:nowrap}.plate-media .motion-toggle::before{content:'';position:absolute;inset:-4px}.plate-media .motion-toggle:hover{background:#fffefa;border-color:var(--green)}.plate-media .motion-toggle[aria-pressed=true]{background:var(--green);color:var(--page);border-color:var(--green)}
@media(max-width:560px){.plate figcaption{padding:14px 16px 16px}.plate-media .motion-toggle{right:9px;bottom:9px;min-height:34px;font-size:16px;padding:5px 9px}.plate-record{margin-top:11px}.plate-diagnostic{margin-top:10px}}

.unlocking{justify-self:end;color:var(--green);font-size:18px;line-height:1.5;white-space:nowrap}
@media(max-width:850px){.masthead{grid-template-columns:1fr auto;gap:8px 16px;padding-block:14px 6px}.masthead nav{grid-column:1/-1;grid-row:2;justify-self:start;gap:28px}.masthead .unlocking{grid-column:2;grid-row:1}.masthead .identity{grid-column:1;grid-row:1}}

.plate-record,.all-photos .plate-record{font-size:17px}
@media(max-width:560px){.catalog-tools{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.search-control{grid-column:1/-1}.catalog-tools #place-filter{grid-column:1;grid-row:2}.catalog-tools #family-filter{grid-column:2;grid-row:2}}
.plate-media .plate-photo{position:absolute;inset:0;width:100%;height:100%}
@media(min-width:851px){.plates{align-items:stretch}.plate{align-self:stretch}.plate figcaption{display:flex;flex-direction:column;flex:1}.plate-record{margin-top:auto;padding-top:12px}}
.plate-record span:last-child{white-space:normal;overflow-wrap:anywhere}