:root{color-scheme:dark;--bg:#101817;--panel:#17201f;--panel-raised:#1b2523;--panel-hover:#22312d;--canvas:#080c0c;--line:#2b3531;--line-soft:#24302c;--text:#eceee6;--muted:#8f9e96;--quiet:#65776c;--mint:#b6d9bf;--mint-bright:#d0ead5;--mint-bg:#293d30;--gold:#cfbb8e;--danger:#e3958e;--radius:14px;--font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:13px;line-height:1.5;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,select{cursor:pointer}button{color:inherit}a{color:inherit;text-decoration:none}button,input,select,a{ -webkit-tap-highlight-color:transparent}button{border:0}button:disabled,input:disabled,select:disabled{cursor:not-allowed;opacity:.38}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:2px solid var(--mint);outline-offset:4px}button,a,input,select{transition:background .18s,color .18s,border-color .18s,box-shadow .18s}::selection{background:#426448;color:#fff}h1,h2,h3,p{margin:0}h1,h2,h3{font-weight:560}.icon-sprite{position:absolute;width:0;height:0;overflow:hidden}.icon{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}.rotate-180{transform:rotate(180deg)}[hidden]{display:none!important}
.site-header{height:90px;padding:0 33px;display:flex;align-items:center;gap:40px;border-bottom:1px solid var(--line);background:#121b19}.brand{display:flex;align-items:center;gap:11px;min-width:227px}.brand-mark{width:35px;height:42px;display:grid;place-items:center}.brand-mark svg{width:34px;height:34px;fill:none;stroke:var(--mint);stroke-width:1.6;stroke-linejoin:round}.brand-wordmark{font-size:18px;letter-spacing:2.4px;line-height:1.2;font-weight:700}.brand-wordmark>span{font-weight:350;margin-left:5px}.brand-wordmark small{display:block;font-size:8px;letter-spacing:2.25px;color:var(--muted);font-weight:500;margin-top:7px}.main-nav{align-self:stretch;display:flex;align-items:stretch;gap:27px}.nav-item{position:relative;display:flex;align-items:center;gap:8px;padding:0 2px;background:none;color:var(--muted);font-size:12px;font-weight:550;white-space:nowrap}.nav-item .icon{width:16px;height:16px}.nav-item:hover{color:var(--text)}.nav-item.active{color:var(--mint-bright)}.nav-item.active:after{content:"";height:2px;position:absolute;bottom:0;left:0;right:0;background:var(--mint)}.header-meta{margin-left:auto;display:flex;flex-direction:column;align-items:flex-end;gap:5px}.local-badge{display:inline-flex;align-items:center;gap:7px;font-size:11px;color:#b7c9bb}.local-badge i{width:5px;height:5px;border-radius:50%;background:#a5d4b0;box-shadow:0 0 8px #a5d4b029}.species-badge{font-size:7px;letter-spacing:1.45px;color:var(--quiet)}
.atlas-layout{display:grid;grid-template-columns:245px minmax(450px,1fr) 289px;min-height:calc(100vh - 134px);max-width:1920px;margin:0 auto}.library-panel{padding:30px 17px 24px 23px;border-right:1px solid var(--line);display:flex;flex-direction:column}.eyebrow{font-size:9px;letter-spacing:1.8px;font-weight:650;color:var(--mint);line-height:1.4}.library-heading{padding:0 6px 23px}.library-heading h2{font-size:18px;margin-top:8px;letter-spacing:-.4px}.library-heading>p:last-child{font-size:10px;color:var(--muted);margin-top:8px}.species-label{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:600;padding:12px 8px;border-top:1px solid var(--line-soft);margin-bottom:6px}.species-dot{width:5px;height:5px;border-radius:50%;background:var(--mint)}.species-label-detail{font-size:9px;font-weight:400;color:var(--quiet);margin-left:auto}.region-list{display:flex;flex-direction:column;gap:7px}.region-card{display:flex;width:100%;align-items:center;gap:11px;text-align:left;border:1px solid transparent;background:transparent;padding:13px 10px;border-radius:10px;min-height:70px;position:relative}.region-card:hover{background:#1b2722;border-color:#2e4035}.region-card.active{background:linear-gradient(110deg,#283c2f,#213127);border-color:#49614b;box-shadow:0 2px 9px #0001}.region-icon{width:36px;height:42px;flex:none;display:grid;place-items:center;color:var(--quiet)}.region-icon svg{width:34px;height:34px}.region-card.active .region-icon{color:var(--mint)}.region-card .region-meta{min-width:0;flex:1}.region-card .region-meta strong,.region-card .region-meta h3{display:block;font-size:12px;line-height:1.4;font-weight:560}.region-card .region-meta small,.region-card .region-meta p,.region-card .region-meta>span{display:block;color:var(--muted);font-size:10px;line-height:1.5;margin-top:4px}.region-card.active .region-meta strong{color:#e1efdf}.region-card .region-meta .status-chip{display:inline-flex}.region-card>svg{width:13px;height:13px;margin-left:auto;color:var(--quiet)}.status-chip{display:inline-flex;align-items:center;gap:4px;font-size:8px;line-height:1.6;letter-spacing:.25px;padding:2px 6px;border-radius:4px;background:#26342d;color:#b7cebb;border:1px solid #3a4b3d;white-space:nowrap}.status-chip.muted{background:#1e2824;color:#8a9d90;border-color:#344139}.library-footer{margin-top:auto;padding:37px 10px 2px}.footer-icon{display:grid;place-items:center;width:29px;height:29px;color:var(--mint);background:#1e2c24;border-radius:8px;margin-bottom:12px}.footer-icon .icon{width:15px;height:15px}.library-footer h3{font-size:11px;font-weight:550;line-height:1.5;color:#c8d2c7}.library-footer p{color:var(--muted);font-size:10px;line-height:1.75;margin-top:7px;max-width:175px}.educational-note{display:flex;align-items:center;gap:7px;color:var(--quiet);font-size:9px;margin-top:25px}.educational-note:before{content:"";height:1px;width:20px;background:#425046}
.study-workspace{padding:29px 26px 18px;min-width:0}.study-heading{display:flex;align-items:center;gap:14px;min-height:91px;padding-bottom:23px}.study-heading h1{font-size:27px;letter-spacing:-1px;line-height:1.2;margin-top:7px}.study-heading #study-subtitle{color:var(--muted);font-size:11px;margin-top:8px;line-height:1.5;max-width:600px}.study-status{margin-left:auto;align-self:flex-start;display:flex;align-items:center;gap:6px;font-size:8px;letter-spacing:1px;color:var(--quiet);padding-top:5px;white-space:nowrap}.study-status>span{height:4px;width:4px;background:#7fa789;border-radius:50%}.viewer-card{overflow:hidden;border:1px solid #354039;background:var(--panel);border-radius:var(--radius);box-shadow:0 8px 25px #00000012}.viewer-toolbar{height:59px;padding:10px 13px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid var(--line)}.segmented-control{display:flex;gap:3px;background:#0f1815;padding:3px;border-radius:7px}.segmented-control button{background:transparent;color:var(--muted);border:1px solid transparent;font-size:10px;padding:6px 11px;border-radius:5px;line-height:1.3}.segmented-control button:hover{color:var(--text);background:#223028}.segmented-control button.active,.segmented-control button[aria-pressed="true"]{background:#2a3b2e;border-color:#435846;color:#d5e9d4}.zoom-controls{display:flex;align-items:center;gap:3px}.zoom-controls output{font-size:10px;min-width:39px;text-align:center;color:#aab9ad;font-variant-numeric:tabular-nums}.icon-button{width:29px;height:29px;display:inline-grid;place-items:center;flex:none;background:transparent;color:var(--muted);border-radius:5px}.icon-button:hover{color:var(--mint-bright);background:#2b3b30}.icon-button .icon{width:15px;height:15px}.toolbar-divider{height:15px;width:1px;background:var(--line);margin:0 5px}.viewport{position:relative;background:var(--canvas);height:clamp(390px,48vw,590px);min-height:390px;overflow:hidden;isolation:isolate;cursor:crosshair;touch-action:none;outline-offset:-3px!important}.viewport:after{pointer-events:none;position:absolute;inset:0;border:1px solid #ffffff03;content:"";z-index:3}.viewport canvas{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:block;image-rendering:auto;max-width:none;max-height:none}.viewport #scan-canvas{z-index:0}.viewport #overlay-canvas{z-index:1;pointer-events:none}.orientation{position:absolute;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;color:#9ead9f;font-size:10px;z-index:3;pointer-events:none}.orientation-top{top:13px;left:50%;transform:translateX(-50%)}.orientation-bottom{bottom:15px;left:50%;transform:translateX(-50%)}.orientation-left{left:16px;top:50%;transform:translateY(-50%)}.orientation-right{right:16px;top:50%;transform:translateY(-50%)}.image-hud{position:absolute;top:17px;left:18px;display:flex;gap:6px;align-items:center;color:#7d8e80;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:9px;z-index:3;pointer-events:none;letter-spacing:.5px}.hud-dot{width:3px;height:3px;border-radius:50%;background:#85a58d}.viewport-hint{position:absolute;bottom:15px;left:17px;font-size:9px;color:#6c8071;z-index:3;pointer-events:none;display:flex;align-items:center;gap:5px}.pointer-glyph{font-size:16px;line-height:1}.hover-label{position:absolute;left:15px;bottom:40px;z-index:6;pointer-events:none;padding:8px 11px;font-size:11px;line-height:1.5;border-radius:6px;background:#18271fed;color:#d5e7d6;border:1px solid #5f7b61;box-shadow:0 5px 20px #0005;max-width:calc(100% - 30px);backdrop-filter:blur(8px)}.loading{position:absolute;inset:0;z-index:5;display:flex;align-items:center;justify-content:center;flex-direction:column;gap:13px;font-size:11px;color:var(--muted);background:var(--canvas)}.loading-spinner{height:24px;width:24px;border:2px solid #27392e;border-top-color:var(--mint);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.slice-controls{display:flex;align-items:center;gap:13px;min-height:55px;padding:9px 12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.slice-label{font-size:10px;color:var(--muted)}.slice-controls input{flex:1;min-width:40px}.slice-controls output{min-width:62px;text-align:right;color:#c4d0c3;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:10px;white-space:nowrap}.image-controls{padding:14px 17px 15px;display:flex;flex-direction:column;gap:16px}.overlay-controls{display:flex;align-items:center;gap:15px}.switch-label{position:relative;display:inline-flex;align-items:center;gap:7px;cursor:pointer;font-size:10px;color:#c3d0c2;white-space:nowrap}.switch-label input{position:absolute;inset:0;opacity:0;cursor:pointer;margin:0}.switch-track{height:16px;width:29px;flex:none;border-radius:20px;border:1px solid #536659;background:#27372d;position:relative;transition:background .2s}.switch-track:after{content:"";position:absolute;top:2px;left:3px;height:10px;width:10px;background:#92a695;border-radius:50%;transition:transform .2s,background .2s}.switch-label input:checked+.switch-track{background:var(--mint);border-color:var(--mint)}.switch-label input:checked+.switch-track:after{transform:translateX(11px);background:#243829}.switch-label input:focus-visible+.switch-track{outline:2px solid var(--mint);outline-offset:4px}.switch-label input:focus-visible{outline:none}.image-controls select{height:28px;font-size:9px;width:150px;padding:3px 25px 3px 9px;color:var(--muted);background-color:#121d17;border-color:#304234}.range-control{display:flex;align-items:center;gap:11px;color:var(--muted);font-size:10px;min-width:0}.range-control span{white-space:nowrap}.range-control input{width:100%;min-width:45px}.opacity-control{margin-left:auto;width:155px}.tonal-controls{display:grid;grid-template-columns:1fr 1fr;gap:30px;padding-top:14px;border-top:1px solid #2a352d}.tonal-controls .range-control>span{width:49px;flex:none}input[type="range"]{-webkit-appearance:none;appearance:none;background:transparent;height:16px;cursor:pointer;margin:0;accent-color:var(--mint)}input[type="range"]::-webkit-slider-runnable-track{height:3px;background:#3a4d3e;border-radius:4px}input[type="range"]::-moz-range-track{height:3px;background:#3a4d3e;border-radius:4px}input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;height:10px;width:10px;border-radius:50%;background:var(--mint);border:2px solid #c3dfc6;margin-top:-3.5px;box-shadow:0 0 0 3px #172019}input[type="range"]::-moz-range-thumb{height:7px;width:7px;border-radius:50%;background:var(--mint);border:2px solid #c3dfc6;box-shadow:0 0 0 3px #172019}#slice-range::-webkit-slider-runnable-track{background:linear-gradient(90deg,#6a8c6f,#394a3c)}#slice-range::-webkit-slider-thumb{width:11px;height:11px;margin-top:-4px}.viewer-caption{display:flex;gap:18px;justify-content:space-between;align-items:flex-start;padding:13px 2px 0}.viewer-caption p{color:var(--quiet);font-size:9px;line-height:1.65;max-width:72%}.keyboard-hint{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;color:var(--quiet);font-size:8px;white-space:nowrap;padding-top:1px}.keyboard-hint span{margin-left:3px}kbd{font-family:inherit;font-size:9px;border:1px solid #3a473c;background:#19231b;border-radius:3px;min-width:17px;height:17px;display:inline-grid;place-items:center;color:#9eaf9e}
.structures-panel{border-left:1px solid var(--line);padding:32px 19px 20px;display:flex;flex-direction:column;min-width:0}.structures-heading{margin-bottom:22px}.structures-heading h2{font-size:18px;letter-spacing:-.4px;margin-top:7px;display:flex;align-items:center;gap:8px}.count-badge{font-size:9px;letter-spacing:0;background:#25362b;border:1px solid #3b503e;border-radius:4px;color:#a8c4ad;padding:1px 6px;font-variant-numeric:tabular-nums}.structure-filters{display:flex;flex-direction:column;gap:10px}.search-field{position:relative;display:flex;align-items:center;border:1px solid #3a483e;background:#121b16;border-radius:7px;height:35px;gap:7px;padding:0 10px;color:var(--quiet)}.search-field:focus-within{border-color:#789d7d;box-shadow:0 0 0 2px #a5caaa0d}.search-field>.icon{width:14px;height:14px}.search-field input{background:transparent;border:none;width:100%;min-width:0;color:var(--text);font-size:10px;outline:none;box-shadow:none}.search-field input:focus-visible{outline:none}.search-field input::placeholder{color:#7e9182}.search-field>span{display:none}input[type="search"]::-webkit-search-cancel-button{filter:grayscale(1);opacity:.5}select{appearance:none;border:1px solid #34443a;border-radius:6px;padding:7px 26px 7px 10px;color:#a5b6a7;background-color:#18241c;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238f9e96' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-position:right 9px center;background-repeat:no-repeat;font-size:10px}select:hover{border-color:#526b55}.check-label{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:10px;cursor:pointer;margin:2px 0 0}input[type="checkbox"]{accent-color:var(--mint);width:12px;height:12px;cursor:pointer;margin:0}.structure-list{margin:18px -8px 18px;max-height:456px;min-height:140px;overflow-y:auto;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:#3d5141 transparent;display:flex;flex-direction:column;gap:3px;padding:0 5px 0 0}.structure-list::-webkit-scrollbar{width:4px}.structure-list::-webkit-scrollbar-thumb{background:#3d5141;border-radius:3px}.structure-row{width:100%;display:flex;gap:9px;align-items:center;text-align:left;padding:10px 9px;min-height:50px;border:1px solid transparent;border-radius:7px;color:#c6d1c4;background:transparent}.structure-row:hover{background:#1c2b21;border-color:#304438}.structure-row.active{background:#283e2d;border-color:#48664c;color:#dfecdb}.swatch{display:block;width:7px;height:7px;border-radius:50%;flex:none;background:var(--swatch,var(--mint));box-shadow:0 0 0 3px color-mix(in srgb,var(--swatch,var(--mint)) 9%,transparent)}.structure-name{font-size:11px;line-height:1.5;display:block;font-weight:500;overflow-wrap:anywhere}.structure-subtitle{display:block;font-size:9px;color:var(--quiet);line-height:1.5;margin-top:2px}.structure-row.active .structure-subtitle{color:#91ad94}.structure-row>span:not(.swatch){min-width:0}.structure-row>small{font-size:8px;color:var(--quiet);margin-left:auto;flex:none}.structure-row .status-chip{margin-left:auto}.selection-detail{margin-top:auto;border-top:1px solid var(--line);padding:21px 0 0;font-size:11px;color:var(--muted);line-height:1.7}.selection-detail .selection-kicker,.selection-detail .eyebrow{font-size:8px;letter-spacing:1.2px;color:#9eb8a0}.selection-detail h3{font-size:15px;line-height:1.4;letter-spacing:-.25px;color:#d5e0cf;font-weight:500;margin:7px 0 7px;overflow-wrap:anywhere}.selection-detail p{font-size:10px;line-height:1.8;color:var(--muted)}.selection-detail small{font-size:9px;line-height:1.7;color:var(--quiet)}.selection-detail strong{color:#c7d8c4;font-weight:500}.selection-detail dl{margin:12px 0 0;display:grid;grid-template-columns:auto 1fr;gap:5px 12px;font-size:10px}.selection-detail dt{color:var(--quiet)}.selection-detail dd{margin:0;color:#b5c9b5;text-align:right}.selection-detail .status-chip{margin-bottom:8px}.empty-state,.error-state{padding:25px 15px;text-align:center;color:var(--muted);font-size:11px;line-height:1.8}.empty-state h3,.error-state h3{font-size:14px;color:var(--text);margin-bottom:8px}.error-state{color:var(--danger)}.site-footer{display:flex;justify-content:space-between;gap:20px;padding:15px 30px;font-size:8px;letter-spacing:.2px;color:#607363;border-top:1px solid var(--line);min-height:44px}.footer-separator{padding:0 9px;color:#415545}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);z-index:30;padding:11px 18px;background:#28422f;border:1px solid #5e8263;color:#d9edda;font-size:12px;border-radius:9px;box-shadow:0 10px 30px #0005;max-width:calc(100vw - 40px)}.app-dialog{color:var(--text);background:var(--panel);padding:0;border:1px solid #455949;box-shadow:0 25px 100px #0008;border-radius:17px;max-width:calc(100vw - 36px);width:720px;max-height:calc(100vh - 60px);overflow:hidden}.app-dialog::backdrop{background:#050d09b8;backdrop-filter:blur(7px)}.dialog-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:25px 26px 20px;border-bottom:1px solid var(--line)}.dialog-heading h2{font-size:23px;line-height:1.25;letter-spacing:-.6px;margin-top:7px}.dialog-heading>.icon-button{margin-top:-4px}.dialog-content{padding:23px 26px;overflow-y:auto;max-height:calc(100vh - 190px);scrollbar-width:thin;scrollbar-color:#3d5141 transparent}.dialog-content p{color:var(--muted);font-size:12px;line-height:1.8}.dialog-content a{color:var(--mint);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}.dialog-content a:hover{color:#e2f3e2}.dialog-content h3{font-size:15px;color:#d3e4d0;margin:0 0 8px}.dialog-content p+p{margin-top:10px}.dialog-content ul{padding-left:19px;color:var(--muted);line-height:1.8;font-size:12px}.source-card{border:1px solid #354b3b;background:#142119;padding:18px;border-radius:10px;margin-bottom:13px}.source-card:last-child{margin-bottom:0}.source-card .status-chip{margin-bottom:9px}.source-card small{display:block;margin-top:10px;color:var(--quiet);line-height:1.7}.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--mint);color:#14271b;font-weight:600;font-size:12px;padding:11px 17px;border-radius:7px}.primary-button:hover{background:#d0e8d2}.primary-button .icon{width:14px;height:14px}.quiz-dialog{width:670px}.quiz-progress{font-size:10px;color:var(--muted);margin-bottom:12px;letter-spacing:.4px}.quiz-image-wrap{display:flex;align-items:center;justify-content:center;background:#070c08;border:1px solid #293d2f;border-radius:10px;overflow:hidden;height:310px;margin-bottom:16px}.quiz-image-wrap canvas{display:block;max-width:100%;max-height:310px;object-fit:contain}.quiz-options{display:grid;grid-template-columns:1fr 1fr;gap:8px}.quiz-options>button,.quiz-option{display:flex;align-items:center;text-align:left;gap:10px;min-height:49px;padding:12px;background:#202e24;color:#d2dece;border:1px solid #3b5140;border-radius:8px;font-size:11px;line-height:1.6}.quiz-options>button:hover:not(:disabled),.quiz-option:hover:not(:disabled){background:#2c4231;border-color:#779d7b}.quiz-options>button.correct,.quiz-option.correct{background:#294f34;border-color:#88bd91;color:#d2f1d4;opacity:1}.quiz-options>button.incorrect,.quiz-option.incorrect{background:#462c29;border-color:#ba7871;color:#f3c6bf;opacity:1}.quiz-feedback{font-size:12px;line-height:1.8;min-height:24px;margin:14px 0;color:var(--muted)}.quiz-feedback.correct{color:#b8dfbd}.quiz-feedback.incorrect{color:#eab0a6}.quiz-content>.primary-button{display:flex;margin-left:auto}
@media(min-width:1600px){.atlas-layout{grid-template-columns:270px minmax(450px,1fr) 320px}.study-workspace{padding:34px 34px 20px}.library-panel{padding-left:29px;padding-right:22px}.structures-panel{padding:37px 25px 22px}.viewport{height:600px}.structure-list{max-height:490px}.study-heading{padding-bottom:28px}.study-heading h1{font-size:30px}.region-card{padding:15px 11px}.region-card .region-meta strong{font-size:13px}.structure-name{font-size:12px}}
@media(max-width:1250px){.site-header{padding:0 24px;gap:20px}.brand{min-width:209px}.atlas-layout{grid-template-columns:219px minmax(390px,1fr) 254px}.study-workspace{padding:27px 18px 16px}.library-panel{padding-left:17px;padding-right:13px}.structures-panel{padding-left:15px;padding-right:15px}.study-heading h1{font-size:25px}.study-status{display:none}.viewer-toolbar{padding:9px}.segmented-control button{padding:6px 8px}.zoom-controls{gap:0}.toolbar-divider{margin:0 3px}.image-controls{padding:13px 12px}.overlay-controls{gap:9px;flex-wrap:wrap}.opacity-control{width:130px;flex:1}.overlay-controls select{width:137px}.viewer-caption{flex-direction:column;gap:9px}.viewer-caption p{max-width:none}.viewport{min-height:410px;height:45vw}.main-nav{gap:22px}}
@media(max-width:1080px){.atlas-layout{grid-template-columns:190px minmax(340px,1fr) 230px}.library-panel{padding:27px 10px 20px}.library-heading{padding-left:7px}.library-heading h2{font-size:17px}.library-heading>p:last-child{font-size:9px}.species-label-detail{display:none}.region-card{gap:7px;padding:11px 8px}.region-icon{width:26px}.region-icon svg{width:26px;height:30px}.region-card .region-meta strong{font-size:11px}.region-card .region-meta small,.region-card .region-meta>span{font-size:9px}.study-workspace{padding:26px 14px 15px}.structures-panel{padding:30px 12px 17px}.structures-heading h2{font-size:17px}.study-heading h1{font-size:23px}.study-heading #study-subtitle{font-size:10px}.viewer-toolbar{flex-wrap:wrap;justify-content:center;height:auto;min-height:56px;gap:8px}.zoom-controls .toolbar-divider{margin-left:3px}.segmented-control button{font-size:9px;padding:6px}.zoom-controls output{font-size:9px;min-width:32px}.zoom-controls .icon-button{width:24px}.viewport{min-height:410px}.viewport-hint{font-size:8px}.slice-controls{gap:8px;padding-left:7px;padding-right:7px}.slice-label{display:none}.image-controls select{flex:1;min-width:130px}.opacity-control{width:100%;flex-basis:100%;max-width:none;margin-top:3px}.opacity-control span{min-width:62px}.tonal-controls{gap:17px}.range-control{font-size:9px;gap:8px}.tonal-controls .range-control>span{width:auto}.main-nav{gap:18px}.site-header{height:80px}.brand{min-width:170px}.header-meta .species-badge{display:none}.structure-list{max-height:505px}}
@media(max-width:900px){.site-header{padding:0 20px;height:77px}.main-nav{gap:19px}.nav-item{font-size:11px}.header-meta{display:none}.main-nav{margin-left:auto}.atlas-layout{grid-template-columns:167px minmax(0,1fr)}.study-workspace{padding:24px 20px 18px}.study-heading h1{font-size:27px}.study-heading #study-subtitle{font-size:11px}.library-panel{grid-row:1 / 3;padding-left:10px;padding-right:10px}.library-heading h2{font-size:15px}.library-heading .eyebrow{font-size:8px;letter-spacing:1.2px}.library-heading>p:last-child{max-width:120px;line-height:1.7}.region-card{flex-wrap:nowrap;min-height:66px;padding:10px 6px}.region-icon{width:25px}.region-card .region-meta strong{font-size:10px}.region-card .region-meta small{font-size:8px}.library-footer{padding-left:8px;padding-right:8px}.library-footer h3{font-size:10px}.library-footer p{font-size:9px}.structures-panel{grid-column:2;border-left:none;border-top:1px solid var(--line);padding:23px 20px 24px;display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.structures-heading{grid-column:1 / 3;margin-bottom:17px}.structure-filters{grid-column:1;align-self:start}.structure-list{grid-column:2;grid-row:2 / 4;max-height:300px;margin:0;min-height:210px}.selection-detail{grid-column:1;margin-top:20px}.viewport{height:490px}.viewer-toolbar{justify-content:space-between;padding:10px 13px}.segmented-control button{font-size:10px;padding:6px 11px}.zoom-controls .icon-button{width:27px}.zoom-controls output{min-width:35px;font-size:10px}.image-controls{padding:14px 16px}.overlay-controls{flex-wrap:nowrap;gap:12px}.opacity-control{flex-basis:auto;flex:1;max-width:150px;margin-top:0}.opacity-control span{min-width:auto}.image-controls select{flex:0;width:144px;min-width:0}.tonal-controls{gap:28px}.viewer-caption{flex-direction:row}.viewer-caption p{max-width:70%}.range-control{font-size:10px}}
@media(max-width:680px){.site-header{height:73px;padding:0 17px;gap:12px}.brand{min-width:0;gap:6px}.brand-mark{width:27px}.brand-mark svg{width:27px}.brand-wordmark{font-size:14px;letter-spacing:1.5px}.brand-wordmark small{font-size:6px;letter-spacing:1.65px;margin-top:6px}.main-nav{gap:14px}.nav-item{font-size:10px;gap:5px}.nav-item .icon{display:none}.atlas-layout{display:flex;flex-direction:column}.library-panel{padding:20px 17px 16px;border-right:none;border-bottom:1px solid var(--line)}.library-heading{padding:0 0 13px;display:flex;align-items:center;gap:12px}.library-heading .eyebrow{font-size:8px}.library-heading h2{margin:0;font-size:14px}.library-heading>p:last-child{display:none}.species-label{display:none}.region-list{flex-direction:row;overflow-x:auto;gap:7px;margin:0 -17px;padding:0 17px 4px;scrollbar-width:none}.region-list::-webkit-scrollbar{display:none}.region-card{min-width:138px;width:auto;flex:none;min-height:61px;border-color:#2b3b31;background:#18251d;padding:9px;gap:7px}.region-card .region-meta strong{font-size:11px}.region-card .region-meta small{font-size:9px}.region-card>svg{display:none}.region-icon{width:26px}.region-card .region-meta .status-chip{font-size:7px}.library-footer{display:none}.study-workspace{padding:23px 17px 18px}.study-heading{min-height:91px;padding-bottom:20px}.study-heading h1{font-size:27px;margin-top:6px}.study-heading .eyebrow{font-size:8px;letter-spacing:1.5px}.study-heading #study-subtitle{font-size:10px}.viewer-card{border-radius:11px}.viewer-toolbar{padding:9px 8px;gap:5px;min-height:52px}.segmented-control button{padding:6px 8px;font-size:9px}.zoom-controls .icon-button{width:24px}.zoom-controls output{min-width:32px;font-size:9px}.toolbar-divider{display:none}.viewport{height:440px;min-height:360px}.image-hud{font-size:8px;left:13px;top:13px}.orientation{font-size:9px}.viewport-hint{font-size:8px;left:12px;bottom:12px}.orientation-bottom{bottom:12px}.orientation-left{left:12px}.orientation-right{right:12px}.slice-controls{min-height:51px;padding:9px;gap:10px}.slice-controls output{font-size:9px;min-width:54px}.image-controls{padding:13px 12px;gap:13px}.overlay-controls{gap:10px;flex-wrap:wrap}.switch-label{font-size:10px}.image-controls select{flex:1;margin-left:auto;max-width:167px;font-size:9px}.opacity-control{max-width:none;flex-basis:100%;margin-top:5px}.opacity-control>span{width:49px;flex:none}.tonal-controls{gap:23px;padding-top:13px}.range-control{font-size:9px}.viewer-caption{flex-direction:column;gap:8px;padding-top:12px}.viewer-caption p{max-width:none;font-size:9px}.structures-panel{display:block;padding:23px 17px;border-top:1px solid var(--line)}.structures-heading{margin-bottom:16px}.structures-heading h2{font-size:20px}.structure-filters{display:grid;grid-template-columns:1fr 1fr;gap:9px}.check-label{grid-column:1 / 3;margin-top:3px}.structure-list{max-height:350px;margin:15px 0 20px;padding:0 4px 0 0;display:grid;grid-template-columns:1fr 1fr;align-content:start;gap:4px 7px;min-height:0}.structure-row{padding:10px 8px;min-height:54px;gap:8px}.structure-name{font-size:10px}.structure-subtitle{font-size:8px}.selection-detail{padding-top:18px}.site-footer{font-size:8px;padding:15px 17px;display:block}.site-footer>span:last-child{display:block;margin-top:5px}.app-dialog{max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px);border-radius:13px}.dialog-heading{padding:21px 18px 18px}.dialog-heading h2{font-size:20px}.dialog-heading .eyebrow{font-size:8px}.dialog-content{padding:18px;max-height:calc(100dvh - 135px)}.quiz-image-wrap{height:270px}.quiz-image-wrap canvas{max-height:270px}.quiz-options{grid-template-columns:1fr}.quiz-options>button{min-height:43px}.source-card{padding:15px}.toast{bottom:14px;font-size:11px;width:max-content;max-width:calc(100vw - 26px)}}
@media(max-width:370px){.site-header{padding:0 12px;gap:8px}.brand-wordmark{font-size:12px}.brand-wordmark small{font-size:5px}.main-nav{gap:10px}.nav-item{font-size:9px}.study-workspace{padding-left:12px;padding-right:12px}.segmented-control button{padding:6px}.zoom-controls .icon-button{width:23px}.viewport{height:385px}.tonal-controls{gap:15px}.range-control{gap:5px}.structure-filters{grid-template-columns:1fr}.check-label{grid-column:1}.structure-list{grid-template-columns:1fr}}
/* Data-driven viewer details. */
.region-arrow{margin-left:auto;align-self:center;color:#879e8a;font-size:15px;flex:none;line-height:1}.region-card.active .region-arrow{color:var(--mint)}
.slice-dot{width:5px;height:5px;margin-left:auto;flex:none;border-radius:50%;border:1px solid #4c6252;background:transparent}.slice-dot.on{background:#a9cfb0;border-color:#a9cfb0;box-shadow:0 0 7px #a9cfb018}
.detail-kicker{display:flex;align-items:center;gap:8px;font-size:9px;letter-spacing:.85px;color:#a5bea7;line-height:1.6}.detail-kicker .swatch{width:6px;height:6px}.selection-detail .latin-name{font-style:italic;font-size:11px;color:#a7b9a7;line-height:1.6;margin:-1px 0 10px}.detail-action{display:flex;align-items:center;justify-content:space-between;gap:10px;width:100%;margin:15px 0 10px;padding:10px 11px;background:#2b4130;border:1px solid #526b53;border-radius:7px;color:#d9e9d5;font-size:11px;line-height:1.5;text-align:left}.detail-action:hover{background:#36533c;border-color:#809e7d}.detail-action>span{font-size:15px;line-height:1;color:#aacaab}.selection-status{display:block;color:#92a896;font-size:10px;line-height:1.7}.original-labels-control{display:flex;align-items:center;gap:8px;margin:13px 2px 0;color:#a5b7a8;font-size:11px;line-height:1.6;cursor:pointer}.original-labels-control input{flex:none;width:13px;height:13px}.viewer-caption>.original-labels-control{margin:0;flex:none}.answer-letter{width:25px;height:25px;flex:none;border:1px solid #526755;border-radius:5px;background:#18271c;display:grid;place-items:center;font-size:10px;font-weight:650;color:#acbfac}.correct .answer-letter{border-color:#81b18b;background:#31573b;color:#d5f0d7}.incorrect .answer-letter{border-color:#b57d75;background:#59352e;color:#f7ccc3}.source-card .source-citation{padding-top:12px;margin-top:14px;border-top:1px solid #304636;font-size:11px;line-height:1.75;color:#91a793}.source-card p a{line-height:1.8}.structure-row>span:last-child.slice-dot{min-width:5px}
/* Keep supporting text legible at normal workstation viewing distance. */
:root{--muted:#a0afa4;--quiet:#809484}
@media(min-width:681px){
  .eyebrow{font-size:10px;letter-spacing:1.55px}.library-heading>p:last-child,.species-label,.species-label-detail,.region-card .region-meta small,.region-card .region-meta p,.region-card .region-meta>span,.library-footer p,.educational-note{font-size:11px}.region-card .region-meta strong,.region-card .region-meta h3{font-size:12px}.library-footer h3{font-size:12px}.region-card .region-meta .status-chip{font-size:9px}.library-footer p{line-height:1.75}.region-card{min-height:75px}.species-label-detail{font-size:10px}.study-heading #study-subtitle{font-size:12px}.study-status{font-size:9px}.segmented-control button{font-size:11px}.zoom-controls output,.slice-label,.slice-controls output{font-size:11px}.image-hud,.orientation,.viewport-hint{font-size:10px}.switch-label,.image-controls select,.range-control,.check-label,.search-field input,.structure-filters>select{font-size:11px}.overlay-controls{flex-wrap:wrap}.overlay-controls select{width:164px}.opacity-control{width:155px;flex:1;min-width:140px}.tonal-controls .range-control>span{width:55px}.structure-name{font-size:12px}.structure-subtitle{font-size:10px}.structure-row{min-height:54px}.count-badge{font-size:10px}.selection-detail p,.selection-detail small,.selection-status,.detail-action,.detail-kicker{font-size:11px}.detail-kicker{font-size:9px;letter-spacing:.6px}.selection-detail h3{font-size:16px}.viewer-caption p{font-size:11px;line-height:1.65}.keyboard-hint{font-size:10px}.keyboard-hint kbd{font-size:11px;min-width:19px;height:19px}.viewer-caption{flex-wrap:wrap;gap:9px 16px}.viewer-caption p{max-width:100%;flex:1;min-width:220px}.site-footer{font-size:10px}.quiz-options>button,.quiz-option{font-size:12px}.status-chip{font-size:9px}
}
@media(min-width:681px) and (max-width:1080px){.segmented-control button{font-size:10px;padding:6px 7px}.zoom-controls output{font-size:10px}.opacity-control{flex-basis:100%;max-width:none}.opacity-control span{min-width:55px}.tonal-controls{gap:16px}.tonal-controls .range-control>span{width:auto}.library-heading>p:last-child{font-size:10px}.library-footer p{font-size:10px}.library-footer h3{font-size:11px}.region-card .region-meta strong{font-size:11px}.region-card .region-meta small{font-size:10px}.region-arrow{font-size:12px}.study-heading #study-subtitle{font-size:11px}.selection-detail p{font-size:11px}}
@media(max-width:900px){.region-arrow{display:none}.original-labels-control{margin-top:12px}.viewer-caption p{min-width:0}}
@media(max-width:680px){.detail-action{max-width:300px}.detail-kicker{font-size:9px}.selection-status,.selection-detail p{font-size:11px}.structure-name{font-size:11px}.structure-subtitle{font-size:9px}.source-card .source-citation{font-size:11px}.quiz-option .answer-letter{width:24px;height:24px}.viewer-caption>.original-labels-control{margin-bottom:4px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}.loading-spinner{animation-duration:2s}}

.frame-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-top:13px}.frame-thumb{display:flex;align-items:center;gap:9px;padding:7px;border:1px solid var(--line);border-radius:8px;background:var(--panel);text-align:left;min-width:0}.frame-thumb:hover{background:var(--panel-hover)}.frame-thumb.active{border-color:#789d7d;background:var(--mint-bg)}.frame-thumb img{width:48px;height:44px;object-fit:cover;border-radius:4px;background:#000;flex:none}.frame-thumb>span{font-size:11px;font-weight:600}.frame-thumb small{display:block;font-size:9px;font-weight:400;color:var(--muted);margin-top:3px}.quiz-image-wrap canvas{width:100%;height:100%;object-fit:contain}.source-citation{overflow-wrap:anywhere}
@media(max-width:1100px){.frame-thumb{gap:6px}.frame-thumb img{width:34px;height:37px}.frame-thumb small{font-size:8px}}
@media(max-width:520px){.frame-thumb{flex-direction:column;align-items:flex-start;padding:6px}.frame-thumb img{width:100%;height:52px}.frame-thumb>span{font-size:10px}.frame-thumb small{font-size:9px}}

@media(min-width:901px) and (max-height:850px){
  .site-header{height:68px}.atlas-layout{min-height:calc(100vh - 102px)}
  .study-workspace{padding-top:20px}.study-heading{min-height:86px;padding-bottom:18px}.study-heading h1{font-size:25px}
  .viewer-toolbar{height:48px;min-height:48px;padding-top:6px;padding-bottom:6px}
  .viewport{height:clamp(290px,calc(100vh - 405px),400px);min-height:290px}
  .slice-controls{min-height:44px;padding-top:6px;padding-bottom:6px}.image-controls{padding-top:10px;padding-bottom:10px;gap:10px}.tonal-controls{padding-top:10px}
  .structures-panel{padding-top:23px}.structures-heading{margin-bottom:14px}.structure-list{max-height:clamp(160px,calc(100vh - 530px),280px);margin-top:14px;margin-bottom:14px;min-height:120px}
  .selection-detail{padding-top:14px;margin-top:10px}.selection-detail p{font-size:10px}.selection-detail .detail-action{margin-top:10px;padding:8px 10px}
  .library-panel{padding-top:24px}.region-card{min-height:61px;padding-top:10px;padding-bottom:10px}.library-footer{padding-top:15px}.library-footer p{display:none}
}