:root{--ink:#203c37;--muted:#79847d;--green:#245c4c;--line:#e3e8df;--bg:#f6f7f2;--light:#eaf0e5;--purple:#776c9a}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);font:14px/1.5 'Helvetica Neue',Arial,sans-serif}button,input,select{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #a995e6;outline-offset:3px}button{color:inherit}a{color:var(--green)}.rail{position:fixed;inset:0 auto 0 0;width:230px;border-right:1px solid var(--line);background:#fcfdf9;padding:34px 22px 20px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:23px;font-weight:650;line-height:1.05;letter-spacing:-1px}.brand-sub{display:block;font-size:20px;font-weight:400}.brandmark{background:var(--ink);color:#f5f7e9;width:49px;height:49px;border-radius:15px;display:grid;place-content:center;position:relative;font:27px Georgia}.brandmark span{position:absolute;right:7px;top:1px;color:#c9dfaa}.rail-label{font-size:9px;letter-spacing:1.6px;color:#94a092;margin:52px 10px 18px}.nav{display:flex;align-items:center;gap:12px;width:100%;border:0;background:transparent;padding:13px 12px;margin:5px 0;border-radius:7px;text-align:left;color:#768178;font-size:13px}.nav>span{font-size:19px;line-height:1}.nav.active{background:var(--light);color:var(--green);font-weight:600}.nav small{margin-left:auto;background:#fff9;padding:0 6px;border-radius:4px;font-size:10px}.rail-note{margin-top:auto;border:1px solid var(--line);border-radius:10px;padding:18px 14px;background:linear-gradient(135deg,#f7f9ee,#edf2e6)}.leaf{display:block;font-size:25px;margin-bottom:12px}.rail-note strong{font-size:12px}.rail-note p{font-size:11px;color:var(--muted);line-height:1.8}.text-button{border:0;background:none;padding:0;color:var(--green);font-size:11px}.student{display:flex;gap:10px;align-items:center;margin-top:24px;font-size:11px}.avatar{display:grid;place-content:center;border:1px solid #d1d9c9;border-radius:50%;width:32px;height:32px;background:#e9eddd;font-family:Georgia;font-size:16px}.student small{display:block;font-size:9px;color:var(--muted)}.online{width:5px;height:5px;background:#82a274;border-radius:50%;margin-left:auto}.shell{margin-left:230px}header{height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 38px;background:#fbfcf8}.breadcrumb{font-size:11px;color:var(--muted)}.breadcrumb span{margin:0 15px;color:#bac2b5}.breadcrumb strong{color:var(--ink);font-weight:500}.header-right{display:flex;align-items:center;gap:22px}.free-pill{font-size:8px;letter-spacing:1.2px;color:#547754}.icon-button{border:1px solid var(--line);background:#fff;border-radius:6px;padding:7px 12px;font-size:11px}main{max-width:1600px;margin:auto;padding:38px}.intro{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:5px 0 30px}.eyebrow{font-size:9px;letter-spacing:1.7px;color:#7c8e76;font-weight:600}h1{font:normal clamp(28px,2.6vw,40px)/1.2 Georgia,serif;letter-spacing:-1.1px;margin:13px 0 11px}h1>span{color:#90a577}.intro p{font-size:12px;color:var(--muted);margin:0}.progress-card{display:flex;gap:13px;align-items:center;flex-shrink:0}.progress-icon{width:41px;height:41px;display:grid;place-content:center;border:3px solid #dbe5d3;border-radius:50%;color:#7a9769}.progress-card strong{display:block;font-size:17px;font-weight:500}.progress-card span{font-size:10px;color:var(--muted)}.region-tabs{display:flex;align-items:center;border-bottom:1px solid var(--line);gap:30px;margin-bottom:24px}.region{border:0;border-bottom:2px solid transparent;background:transparent;padding:14px 0 17px;display:flex;gap:10px;align-items:center;color:var(--muted);font-size:13px}.region>span{font-size:9px;color:#a1ab98}.region small{font-size:9px;background:#eeeee6;padding:3px 7px;border-radius:4px}.region.active{color:var(--green);border-color:var(--green);font-weight:600}.region.active>span{color:var(--green)}.starter{margin-left:auto;font-size:8px;letter-spacing:1px;color:#8d9687}.starter span{margin-left:12px}.atlas-layout{display:grid;grid-template-columns:230px minmax(260px,1fr) 265px;gap:18px}.panel{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.library{padding:17px 12px}.panel-title{display:flex;justify-content:space-between;align-items:center;font-size:12px;font-weight:600;margin:0 5px 15px}.tiny-label{font-size:9px;color:var(--muted);font-weight:400}.search{display:flex;align-items:center;gap:8px;background:#f5f7f2;border:1px solid var(--line);border-radius:5px;margin-bottom:12px;padding:7px 10px;color:#9ca696}.search input{width:100%;min-width:0;border:0;background:transparent;outline:none;font-size:11px;color:var(--ink)}.filters{display:flex;gap:5px;margin-bottom:16px}.filter{font-size:10px;border:1px solid var(--line);background:white;border-radius:4px;padding:4px 8px}.filter.active{background:var(--ink);border-color:var(--ink);color:white}.structure{width:100%;border:1px solid transparent;background:transparent;text-align:left;padding:12px 9px;border-radius:6px;display:flex;gap:10px;align-items:center}.structure.active{background:#edf3e8;border-color:#dee8d6}.structure-name{font-size:11px;display:block}.structure small{font-size:9px;color:var(--muted);display:block;margin-top:3px}.dot{height:7px;width:7px;border-radius:50%;background:#cfb1a3;flex-shrink:0}.dot.bone{background:#d1bd83}.structure .check{margin-left:auto;color:#618853;font-size:12px}.list-caption{font-size:9px;color:var(--muted);padding:15px 8px 0;border-top:1px solid var(--line);margin-top:15px}.plate{display:flex;flex-direction:column;min-height:520px}.plate-top{display:flex;justify-content:space-between;align-items:center;padding:17px 19px;border-bottom:1px solid var(--line);font-size:11px}.plate-top small{font-size:9px;color:var(--muted);display:block;margin-top:3px}.plate-label{font-size:8px;letter-spacing:1px;color:var(--purple);background:#f2f0f7;padding:4px 7px;border-radius:4px}.image-area{flex:1;display:grid;place-content:center;padding:22px;background:radial-gradient(#fff 30%,#f7f9f3);position:relative;min-height:365px}.image-area img{width:100%;height:345px;object-fit:contain;mix-blend-mode:multiply}.zoom{position:absolute;bottom:13px;right:13px;font-size:10px;background:white;border:1px solid var(--line);border-radius:5px;padding:7px 10px}.plate-footer{padding:13px 18px;border-top:1px solid var(--line);font-size:9px;color:var(--muted);line-height:1.6}.plate-footer a{font-size:9px}.detail{padding:21px;position:relative}.detail-type{font-size:9px;letter-spacing:1.2px;color:#9d8272;text-transform:uppercase}.save{position:absolute;right:15px;top:15px;font-size:22px;border:0;background:transparent;color:#597953}.detail h2{font:normal 26px/1.15 Georgia;margin:15px 0 7px;letter-spacing:-.5px;padding-right:12px}.detail-sub{font-size:10px;color:var(--muted)}.detail .divider{height:1px;background:var(--line);margin:22px 0}.fact-label{font-size:8px;letter-spacing:1.2px;color:#8b9686;margin-bottom:8px}.detail p{font-size:12px;line-height:1.75;margin:0 0 20px}.recall{background:#f4f1fa;border-radius:7px;padding:13px;margin:15px 0 20px}.recall .fact-label{color:#8c7caa}.recall p{font-size:11px;margin:0}.primary{border:0;background:var(--green);color:#fff;padding:11px 18px;border-radius:6px;font-size:12px}.secondary{border:1px solid var(--line);background:white;padding:10px 18px;border-radius:6px;font-size:12px}.full{width:100%}.detail-source{display:block;font-size:9px;margin-top:13px;text-align:center}.bottom-note{margin-top:18px;background:#eef1e7;border:1px solid #e0e6d5;border-radius:8px;padding:14px 18px;display:flex;align-items:center;gap:13px;font-size:11px}.bottom-note strong{font-weight:500}.bottom-note span{font-size:10px;color:#77836f}.bottom-note .number{font:22px Georgia;color:#859475}footer{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:28px;font-size:9px;color:#939c8e}footer .text-button{font-size:9px}.study-container{max-width:760px;margin:30px auto}.study-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;color:var(--muted);font-size:12px}.flashcard{min-height:300px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:40px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 30px #203c3706}.flashcard h2{font:32px Georgia;margin:20px 0}.flashcard p{max-width:440px;color:var(--muted)}.study-actions{display:flex;justify-content:center;gap:12px;margin-top:20px;flex-wrap:wrap}.quiz-card{padding:32px}.quiz-card h2{font:27px/1.3 Georgia;margin:12px 0 25px}.answers{display:grid;gap:10px}.answer{text-align:left;padding:14px;border:1px solid var(--line);border-radius:6px;background:white}.answer.correct{background:#edf5e8;border-color:#709868}.answer.wrong{background:#fff0eb;border-color:#c7907e}.feedback{padding:16px;background:#f3f5ed;border-radius:7px;margin:18px 0;font-size:13px}.score{font:65px Georgia;color:var(--green)}.saved-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}.saved-card{padding:24px;cursor:pointer}.saved-card h2{font:25px Georgia}.empty{padding:65px;text-align:center;border:1px dashed #bfcbb5;border-radius:10px}.empty h2{font:28px Georgia}.empty p{color:var(--muted)}dialog{border:1px solid var(--line);border-radius:14px;padding:35px;max-width:850px;width:90%;color:var(--ink);max-height:90vh}dialog::backdrop{background:#152f2be0;backdrop-filter:blur(4px)}dialog h2{font:32px Georgia;margin-top:0}dialog p,dialog li{font-size:13px;line-height:1.8}dialog img{width:100%;max-height:65vh;object-fit:contain}.close{position:sticky;top:0;float:right;background:#edf1e7;border:0;border-radius:50%;height:29px;width:29px;font-size:22px}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--ink);color:white;padding:12px 20px;border-radius:8px;transition:transform .2s;z-index:20;font-size:12px;max-width:90%;text-align:center}#toast.show{transform:translateX(-50%) translateY(0)}@media(min-width:1500px){.atlas-layout{grid-template-columns:250px minmax(400px,1fr) 310px}.image-area img{height:410px}}@media(max-width:1200px){.rail{width:190px;padding:28px 15px}.shell{margin-left:190px}main{padding:25px}.atlas-layout{grid-template-columns:190px minmax(230px,1fr)}.detail{grid-column:1/-1;display:block}.detail h2{font-size:28px}.detail .divider{margin:15px 0}.detail p{margin-bottom:12px}.detail .full{width:auto}.detail-source{display:inline-block;margin-left:15px}.starter{display:none}.progress-card{display:none}}@media(max-width:750px){.rail{position:static;width:100%;height:auto;padding:15px 18px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:18px;gap:9px}.brand-sub{display:inline;font-size:18px;margin-left:4px}.brandmark{width:34px;height:34px;font-size:21px;border-radius:10px}.rail-label,.rail-note,.student{display:none}nav{display:flex;gap:6px;margin-top:16px;overflow:auto}.nav{white-space:nowrap;padding:9px 10px;width:auto;font-size:10px;margin:0}.nav>span{font-size:14px}.nav small{display:none}.shell{margin:0}header{height:52px;padding:0 18px}.header-right{gap:10px}.free-pill{font-size:7px}.icon-button{font-size:10px}.intro{margin:5px 0 20px}main{padding:23px 16px}.eyebrow{font-size:7px;letter-spacing:1px}h1{font-size:30px;max-width:330px}.intro p{font-size:11px;max-width:300px}.region-tabs{gap:20px;margin-bottom:18px}.region{font-size:12px;gap:6px}.region small{display:none}.atlas-layout{grid-template-columns:1fr;gap:15px}.library{padding:13px}.panel-title{margin-bottom:10px}.search{margin-bottom:9px}#structures{display:flex;overflow-x:auto;gap:6px}.structure{min-width:155px;width:auto;padding:10px}.structure-name{font-size:11px}.structure small{font-size:8px}.list-caption{display:none}.filters{margin-bottom:10px}.plate{min-height:390px}.image-area{min-height:290px;padding:12px}.image-area img{height:280px}.plate-top{padding:13px}.plate-footer{font-size:8px}.detail{grid-column:auto;padding:22px}.detail h2{font-size:30px}.bottom-note{align-items:flex-start}.bottom-note span{display:block;margin-top:4px}footer{font-size:8px;margin-top:22px;gap:10px}.flashcard{min-height:300px;padding:25px}.quiz-card{padding:23px}.quiz-card h2{font-size:25px}.study-container{margin-top:15px}.empty{padding:35px 20px}dialog{padding:25px}}

.attribution{width:100%;font-size:9px;line-height:1.8;color:#7b8776;border-top:1px solid var(--line);padding-top:12px}.attribution a{color:inherit}

.beta-banner{display:flex;align-items:center;gap:16px;background:#eef1e7;border:1px solid #dde5d4;border-radius:8px;padding:14px 18px;margin-bottom:12px}.beta-tag{font-size:8px;letter-spacing:1px;white-space:nowrap;color:#697b56;background:white;padding:5px 7px;border-radius:4px}.beta-banner strong{font-size:11px;font-weight:500;display:block}.beta-banner div>span{font-size:10px;color:var(--muted);display:block;margin-top:3px}.beta-banner .text-button{margin-left:auto;white-space:nowrap}.testing-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.testing-panel{padding:28px}.testing-panel h2,.prep-roadmap h2{font:normal 28px/1.2 Georgia;margin:13px 0}.testing-intro{color:var(--muted);font-size:12px;line-height:1.8}.test-count{font-size:10px;color:var(--green);background:#eef3e8;display:inline-block;padding:4px 10px;border-radius:4px;margin:6px 0 14px}.test-task{display:flex;align-items:flex-start;gap:12px;padding:13px 0;border-bottom:1px solid var(--line);cursor:pointer}.test-task input{accent-color:var(--green);margin-top:4px;width:16px;height:16px;flex-shrink:0}.test-task strong{display:block;font-size:12px;font-weight:500}.test-task small{display:block;font-size:11px;color:var(--muted);margin-top:3px;line-height:1.7}.scope-note{background:#f5f3e9;padding:16px;border-radius:6px;margin-top:20px;font-size:11px}.scope-note p{margin-bottom:0;color:var(--muted);line-height:1.8}.field{display:block;font-size:11px;font-weight:500;margin:17px 0}.field input,.field select,.field textarea{display:block;width:100%;border:1px solid #d7dfd1;border-radius:5px;padding:10px;margin-top:7px;color:var(--ink);background:#fcfdf9;font:12px/1.6 Arial;min-width:0}.field textarea{resize:vertical}.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.privacy-note{font-size:10px;color:var(--muted);line-height:1.8}.report-actions{display:flex;gap:10px;flex-wrap:wrap}#report-area{border-top:1px solid var(--line);margin-top:22px}.prep-roadmap{display:flex;align-items:center;gap:35px;border:1px solid var(--line);border-radius:8px;padding:25px;margin-top:22px}.prep-roadmap div{min-width:270px}.prep-roadmap p{font-size:12px;line-height:1.9;color:var(--muted)}
@media(max-width:950px){.testing-grid{grid-template-columns:1fr}.beta-banner{flex-wrap:wrap}.beta-banner .text-button{margin-left:0}.prep-roadmap{display:block}}@media(max-width:750px){.testing-panel{padding:21px}.field-row{grid-template-columns:1fr;gap:0}.header-right{gap:7px}.free-pill{display:none}.beta-banner{padding:13px;gap:10px}.beta-banner>div{flex:1;min-width:190px}.beta-banner strong{font-size:10px}.beta-banner div>span{font-size:9px}.beta-banner .text-button{font-size:10px}.prep-roadmap div{min-width:0}}
#toast:not(.show){visibility:hidden}

.brandmark{font-size:23px;letter-spacing:-1px;flex-shrink:0}.brand-title{font-size:20px;letter-spacing:-.5px}.brand-title .brand-sub{font-size:16px;line-height:1.3;margin-top:3px;letter-spacing:-.2px}.creator-credit{width:100%;font-size:12px;color:#6a7c6c;padding-bottom:12px;border-bottom:1px solid var(--line)}.creator-credit strong{color:var(--green);font-weight:600}@media(max-width:750px){.brandmark{font-size:18px}.brand-title{font-size:18px}.brand-title .brand-sub{display:inline;font-size:18px;margin-left:4px}.creator-credit{font-size:11px;padding-bottom:10px}}