@import "https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;650;700;750;800&display=swap";:root{--navy:#102f3d;--navy2:#1b4554;--teal:#06776e;--cyan:#74e1d1;--gold:#d0a965;--bg:#f4f7f8;--line:#dce4e7;--text:#172f3c;--muted:#5e7078;--white:#fff;--radius:14px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.6 DM Sans,Arial,sans-serif}h1,h2,h3,h4{letter-spacing:-.04em;margin:0 0 12px;font-family:Manrope,Arial,sans-serif;line-height:1.25}h1{font-size:clamp(30px,3vw,42px);font-weight:800}h2{font-size:24px}h3{font-size:20px}p{margin:0 0 16px}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input,select,summary{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:default;opacity:.5}:is(a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible){outline-offset:4px;outline:3px solid #d4a029}button{border:0}a:hover{text-decoration:none}.sidebar{background:var(--navy);color:#eef8fa;z-index:10;flex-direction:column;width:248px;padding:35px 22px;display:flex;position:fixed;inset:0 auto 0 0}.brand{letter-spacing:.08em;align-items:center;gap:13px;font-size:16px;font-weight:800;line-height:1.25;display:flex}.brand small{letter-spacing:.18em;font-size:12px}.brand-symbol{color:var(--cyan);letter-spacing:-.09em;font:800 30px Manrope}.brand-symbol span{color:var(--gold)}.nav-caption{letter-spacing:.12em;color:#9db3bc;margin:55px 12px 13px;font-size:11px}.sidebar nav{gap:7px;display:grid}.sidebar nav a{color:#c3d2d9;border-radius:8px;align-items:center;gap:14px;padding:12px;font-size:14px;display:flex}.sidebar nav a span{width:23px;font-size:22px;line-height:1}.sidebar-bottom{margin-top:auto;padding:35px 12px 0}.sidebar-bottom p{color:#b4c5ca;font-size:19px;line-height:1.5}.sidebar-bottom a{color:#bfd3da;font-size:12px}.little-rule{background:var(--gold);width:35px;height:3px;margin-bottom:22px}.edition{color:#8eabb6;letter-spacing:.1em;margin-top:22px;font-size:10px;display:block}.topbar{border-bottom:1px solid var(--line);height:78px;color:var(--muted);background:#fff;justify-content:space-between;align-items:center;padding:0 44px;font-size:14px;display:flex}.review-pill{color:#806124;background:#fffcf5;border:1px solid #dccda8;border-radius:5px;padding:5px 11px;font-size:12px}main{max-width:1490px;min-height:80vh;margin:auto;padding:37px 44px 65px}.page-heading{margin-bottom:28px}.page-heading p:last-child{color:var(--muted);margin-bottom:0}.eyebrow{letter-spacing:.15em;color:var(--teal);margin-bottom:10px;font-size:11px;font-weight:700;display:block}.home-grid{grid-template-columns:1.65fr 1fr;gap:22px;margin-bottom:35px;display:grid}.feature-panel{background:var(--navy);border-radius:var(--radius);color:#fff;padding:30px 32px;position:relative;overflow:hidden}.feature-panel .eyebrow{color:var(--cyan)}.feature-panel h2{max-width:560px;font-size:29px}.feature-panel p{color:#c7d9df;max-width:460px;font-size:15px}.feature-foot{color:#8daeb9;letter-spacing:.18em;margin-top:25px;font-size:10px}.button{background:var(--cyan);color:var(--navy);border:1px solid #0000;border-radius:7px;justify-content:center;align-items:center;gap:9px;padding:10px 18px;font-size:14px;font-weight:700;line-height:1.5;display:inline-flex}.button:hover{filter:brightness(.96)}.button.dark{background:var(--navy);color:#fff}.button.outline{color:var(--text);background:#fff;border:1px solid #c8d5da}.button.small{padding:7px 12px;font-size:13px}.review-panel{border-radius:var(--radius);background:#e6f0f1;border:1px solid #d5e5e8;padding:30px}.review-panel p{color:#4b6770;font-size:15px}.section-head{justify-content:space-between;align-items:center;gap:16px;margin:30px 0 18px;display:flex}.section-head h2{margin:0;font-size:21px}.section-head>span{color:var(--muted);font-size:13px}.track-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;display:grid}.track{border:1px solid var(--line);background:#fff;border-radius:12px;flex-direction:column;padding:24px;transition:transform .15s,border-color .15s;display:flex;position:relative}.track:hover{border-color:#8eaaa9;transform:translateY(-2px)}.track-number{color:var(--teal);letter-spacing:.09em;margin-bottom:22px;font:600 12px Manrope}.track h3{letter-spacing:-.025em;font-size:18px;line-height:1.35}.track p{color:var(--muted);font-size:14px}.text-link{color:var(--teal);margin-top:auto;font-size:13px;font-weight:700}.badge{color:#48616b;background:#edf3f4;border:1px solid #dfe8ea;border-radius:4px;padding:2px 8px;font-size:12px;font-weight:500;display:inline-block}.draft{color:#7b602a;background:#fff8e8;border-color:#eddfbc}.toolbar{flex-wrap:wrap;gap:12px;margin:24px 0;display:flex}.search{flex:1;min-width:220px;position:relative}.search input,select{width:100%;color:var(--text);background:#fff;border:1px solid #cdd9df;border-radius:8px;padding:11px 14px;font-size:14px}.search input{padding-left:39px}.search:before{content:"⌕";color:#5e7781;font-size:24px;position:absolute;top:2px;left:13px}select{width:auto;min-width:170px}.subtle{color:var(--muted);font-size:14px}.notice{border-left:3px solid var(--gold);color:#695533;background:#fffbf1;margin:22px 0;padding:13px 17px;font-size:14px}.row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.stack{gap:16px;display:grid}.two-col{grid-template-columns:minmax(0,1.7fr) minmax(250px,1fr);gap:25px;display:grid}.card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:25px}.card h3{font-size:19px}.back{color:var(--teal);margin-bottom:20px;font-size:14px;display:inline-block}.chapter-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:20px;padding:20px 0;display:flex}.chapter-row:last-child{border-bottom:0}.chapter-row h3{margin:0 0 4px;font-size:17px}.chapter-row p{color:var(--muted);margin:0;font-size:13px}.lesson-body{font-size:17px}.pearls{margin:10px 0 25px;padding:0;list-style:none}.pearls li{border-bottom:1px solid var(--line);padding:17px 0 17px 24px;position:relative}.pearls li:before{content:"•";color:var(--teal);font-size:22px;position:absolute;left:0}.source-refs{color:var(--teal);margin-left:5px;font-size:12px}.source-list{padding-left:20px;font-size:14px}.source-list li{overflow-wrap:anywhere;padding:8px 0}.source-list a{text-underline-offset:3px;color:var(--teal);text-decoration:underline}.question-box{background:#eff5f6;border:1px solid #d5e3e7;border-radius:10px;margin:18px 0;padding:23px}.question-box h3{letter-spacing:-.015em;font-size:18px;line-height:1.5}.options{gap:9px;display:grid}.option{text-align:left;color:var(--text);background:#fff;border:1px solid #cbdce0;border-radius:7px;padding:13px 15px;font-size:15px}.option:hover{background:#e7f7f2}.option.correct{background:#dcefe7;border-color:#2f8070}.option.wrong{background:#fff0f0;border-color:#b16363}.feedback{background:#fff;border-radius:7px;margin-top:15px;padding:16px;font-size:15px}.feedback strong{margin-bottom:7px;display:block}.atlas-layout{grid-template-columns:310px minmax(0,1fr);gap:25px;display:grid}.map-panel{background:var(--navy);color:#fff;border-radius:13px;align-self:start;padding:23px 18px}.map-panel h2{padding-left:6px;font-size:19px}.body-map{background:linear-gradient(90deg,#0000 49.8%,#365360 50%,#0000 50.2%);width:100%;height:440px;position:relative}.body-map img{object-fit:contain;filter:invert(.88)sepia(.12)saturate(.8)hue-rotate(110deg);opacity:.65;width:100%;height:100%}.body-point{background:#267c75;border:2px solid #a4ecdb;border-radius:50%;width:25px;height:25px;position:absolute;transform:translate(-50%,-50%);box-shadow:0 0 0 6px #74e1d118}.body-point:hover,.body-point.active{background:#e7bd68;border-color:#ffe2a5;box-shadow:0 0 0 8px #e7bd6822}.body-point .sr-only{display:none}.region-chips{flex-wrap:wrap;gap:7px;margin-top:15px;display:flex}.chip{color:#daecef;background:#264956;border:1px solid #46616b;border-radius:5px;padding:6px 9px;font-size:12px}.chip.active{background:var(--cyan);color:#123d43;border-color:var(--cyan)}.map-credit{color:#a9bdc6;margin-top:16px;font-size:10px;line-height:1.5}.flap-list{gap:14px;display:grid}.flap-card{border:1px solid var(--line);background:#fff;border-radius:11px;grid-template-columns:1fr auto;gap:10px;padding:23px;display:grid}.flap-card h3{margin:8px 0;font-size:21px}.flap-card p{color:var(--muted);margin:5px 0;font-size:14px}.flap-card .actions{flex-direction:column;justify-content:center;gap:8px;display:flex}.compare-bar{background:var(--navy);color:#fff;border-radius:9px;justify-content:space-between;align-items:center;gap:15px;margin-top:20px;padding:13px 17px;display:flex;position:sticky;bottom:16px;box-shadow:0 5px 15px #102f3d24}.empty{text-align:center;color:var(--muted);border:1px dashed #b9cdd4;border-radius:12px;padding:38px}.facts{background:var(--line);border:1px solid var(--line);border-radius:10px;grid-template-columns:1fr 1fr;gap:1px;display:grid;overflow:hidden}.fact{background:#fff;padding:18px}.fact label{text-transform:uppercase;letter-spacing:.1em;color:var(--teal);margin-bottom:9px;font-size:11px;font-weight:700;display:block}.fact p{margin:0;font-size:15px}.tabs{border-bottom:1px solid var(--line);gap:5px;margin-bottom:25px;display:flex;overflow-x:auto}.tab{color:var(--muted);white-space:nowrap;background:0 0;border-bottom:3px solid #0000;padding:13px 16px;font-size:14px}.tab.active{border-color:var(--teal);color:var(--teal);font-weight:700}.review-card{border:1px solid var(--line);background:#fff;border-radius:16px;max-width:770px;margin:25px auto;padding:35px}.review-card h2{margin:25px 0;font-size:26px;line-height:1.45}.answer{border-top:1px solid var(--line);margin-top:25px;padding-top:25px}.stats{grid-template-columns:repeat(3,1fr);gap:15px;display:grid}.stat{border:1px solid var(--line);background:#fff;border-radius:10px;padding:20px}.stat strong{font:800 28px Manrope;display:block}.stat span{color:var(--muted);font-size:13px}.media-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;display:grid}.media-card{border:1px solid var(--line);background:#fff;border-radius:12px;overflow:hidden}.media-card img{aspect-ratio:16/9;object-fit:cover;background:var(--navy);width:100%}.media-info h3{font-size:21px}.media-info p{color:var(--muted);font-size:14px}.media-info .row{gap:8px}.media-info a{font-size:13px}.download-row{border:1px solid var(--line);background:#fff;border-radius:10px;justify-content:space-between;align-items:center;gap:20px;padding:23px;display:flex}.download-row h3{font-size:18px}.download-row p{color:var(--muted);margin:0;font-size:14px}.illustration{object-fit:contain;background:#fff;width:100%;max-height:390px;margin:15px 0}.credit{color:var(--muted);font-size:12px}.credit a{text-decoration:underline}.progress{background:#e5eded;border-radius:3px;height:5px;overflow:hidden}.progress div{background:var(--teal);height:100%}details{border:1px solid var(--line);background:#fff;border-radius:8px;margin-top:15px;padding:15px 18px}summary{cursor:pointer;font-size:14px;font-weight:600}details p{margin:15px 0 0;font-size:14px}dialog{width:calc(100% - 40px);max-width:1040px;color:var(--text);border:0;border-radius:14px;padding:30px;box-shadow:0 25px 80px #0005}dialog::backdrop{background:#102f3d99}.dialog-header{justify-content:space-between;align-items:center;gap:20px;margin-bottom:20px;display:flex}.close{background:#eaf0f2;border-radius:50%;width:38px;height:38px;font-size:24px}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{vertical-align:top;border-bottom:1px solid var(--line);text-align:left;min-width:200px;padding:16px}th:first-child,td:first-child{min-width:120px}th{background:#eff5f6}footer{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;gap:15px;padding:23px 44px;font-size:11px;display:flex}footer>span:first-child{color:var(--text);font-weight:700}.skip{z-index:100;background:#fff;padding:10px;position:fixed;top:-100px;left:10px}.skip:focus{top:10px}#toast{background:var(--navy);color:#fff;z-index:100;border-radius:8px;max-width:90vw;padding:12px 20px;display:none;position:fixed;bottom:25px;right:25px}.sr-only{clip:rect(0,0,0,0);width:1px;height:1px;position:absolute;overflow:hidden}.link-button{color:var(--teal);background:0 0;padding:0;font-size:14px;text-decoration:underline}.review-answer{white-space:pre-line}.pathway{color:var(--muted);align-items:center;gap:10px;margin-bottom:16px;font-size:12px;display:flex}.pathway span{color:#22685f;background:#e4efee;border-radius:5px;padding:4px 9px}.lesson-note{resize:vertical;border:1px solid #cbd8df;border-radius:7px;width:100%;min-height:110px;padding:12px}.highlight-card{border-top:4px solid var(--teal)}@media (min-width:1550px){main{padding-top:45px}.home-grid{margin-bottom:45px}.feature-panel,.review-panel{padding:37px}.track{padding:28px}}@media (max-width:1150px){.sidebar{width:218px;padding:28px 16px}.workspace{margin-left:218px}main{padding:30px 28px}.topbar{padding:0 28px}.track-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.home-grid{grid-template-columns:1.35fr 1fr}.atlas-layout{grid-template-columns:260px minmax(0,1fr)}.flap-card{grid-template-columns:1fr}.flap-card .actions{flex-direction:row;justify-content:flex-start}.two-col{grid-template-columns:1.6fr 1fr}}@media (max-width:820px){.sidebar{width:100%;padding:17px 20px;display:block;position:static}.brand{font-size:13px}.brand-symbol{font-size:25px}.brand small{font-size:10px}.nav-caption,.sidebar-bottom{display:none}.sidebar nav{gap:8px;margin-top:17px;padding-bottom:2px;display:flex;overflow-x:auto}.sidebar nav a{white-space:nowrap;padding:9px 11px;font-size:12px}.sidebar nav a span{display:none}.sidebar nav a.active{box-shadow:inset 0 -2px var(--cyan)}.workspace{margin:0}.topbar{height:55px;padding:0 22px;font-size:12px}.review-pill{font-size:10px}main{padding:25px 22px 40px}.home-grid{grid-template-columns:1.25fr 1fr;gap:14px}.feature-panel,.review-panel{padding:24px}.feature-panel h2,.review-panel h2{font-size:24px}.atlas-layout{grid-template-columns:250px minmax(0,1fr)}.two-col{grid-template-columns:1fr}.sticky-aside{order:2}.media-grid{gap:15px}.facts{grid-template-columns:1fr 1fr}footer{flex-wrap:wrap;padding:20px 22px}.flap-card{padding:20px}}@media (max-width:580px){h1{font-size:30px}.home-grid,.track-grid,.media-grid,.atlas-layout{grid-template-columns:1fr}.feature-panel h2{font-size:27px}.review-panel h2 br{display:none}.review-panel{padding:22px}.review-panel p{max-width:300px}.feature-panel{min-height:270px}.section-head{align-items:flex-start}.section-head span{font-size:11px}.track{padding:22px}.track-number{margin-bottom:13px}.map-panel{padding:20px}.body-map{max-width:260px;height:330px;margin:auto}.region-chips{justify-content:center}.map-credit{text-align:center}.download-row{flex-direction:column;align-items:flex-start}.facts{grid-template-columns:1fr}.review-card{padding:24px}.review-card h2{font-size:22px}.stats{gap:8px}.stat{padding:14px}.stat strong{font-size:24px}.stat span{font-size:11px}.toolbar select{width:100%}.topbar>span{font-size:11px}.compare-bar,.chapter-row{flex-wrap:wrap}.tabs{margin:15px -5px}.tab{padding:12px;font-size:13px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}@media print{.sidebar,.topbar,footer,.toolbar,.button,.tabs{display:none!important}.workspace{margin:0}main{padding:0}.card{border:none}.two-col{display:block}body{background:#fff;font-size:12pt}a{text-decoration:underline}.notice{background:#fff}}.brand-logo{background:#fff;border-radius:5px;width:100%;max-width:195px;height:auto;padding:7px}:root{--navy:#123b45;--navy2:#205763;--teal:#087c74;--cyan:#a0ecdd;--bg:#f7f9fa;--line:#dfe8eb;--text:#153440;--muted:#61757d}.sidebar{color:var(--text);border-right:1px solid var(--line);background:#fff;width:232px;padding:29px 18px}.brand{justify-content:center}.brand-logo{mix-blend-mode:multiply;background:0 0;border-radius:0;width:100%;max-width:183px;padding:0}.nav-caption{color:#829398;margin:38px 12px 12px;font-size:10px}.sidebar nav a{color:#60757c;padding:10px 12px;font-size:13px}.sidebar nav a span{color:#64868b;font-size:21px}.sidebar nav a:hover,.sidebar nav a.active{color:var(--teal);background:#eaf4f2}.sidebar nav a.active{box-shadow:inset 3px 0 var(--teal)}.sidebar-bottom p{color:#6c8087;font-size:16px}.sidebar-bottom strong{color:var(--text)}.sidebar-bottom a{color:var(--muted)}.edition{color:#849a9f}.little-rule{background:var(--teal)}.workspace{margin-left:232px}.topbar{background:#ffffffb3;height:76px}.page-heading h1{letter-spacing:-.045em;font-size:clamp(29px,3.05vw,43px)}.page-heading .eyebrow{letter-spacing:.18em;font-size:10px}.home-grid{grid-template-columns:1.6fr 1fr;gap:22px}.feature-panel{background:linear-gradient(115deg,#113e46,#20626a);padding:32px}.feature-panel h2{font-size:29px;line-height:1.3}.feature-panel p{max-width:380px;margin:17px 0 22px;font-size:15px}.review-panel{background:#e8f2f1;border:0}.review-panel h2{font-size:29px}.review-panel p{margin:18px 0 22px}.track-number{color:#789196;margin-bottom:18px;font-size:10px}.track{padding:25px;box-shadow:0 3px 12px #14384203}.track h3{font-size:19px}.track-progress{margin:8px 0 20px}.progress-label{color:var(--muted);justify-content:space-between;gap:8px;margin-bottom:8px;font-size:11px;display:flex}.progress-label strong{color:#4b6b74;font-weight:600}.progress{border-radius:4px;height:4px}.track .text-link{font-size:12px}.library-update{color:#6c858c;margin:30px 0 0;font-size:13px}.account-link{align-items:center;gap:10px;font-size:13px;line-height:1.35;display:flex}.account-link small{color:var(--muted);margin-top:3px;font-size:10px;display:block}.avatar{width:34px;height:34px;color:var(--teal);background:#e2f0ed;border-radius:50%;justify-content:center;align-items:center;font:700 13px Manrope;display:inline-flex}.avatar.large{width:54px;height:54px;font-size:20px}.lesson-meta{color:var(--muted);gap:15px;margin-bottom:27px;font-size:13px}.lesson-layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px;display:grid}.lesson-body{padding:30px}.lesson-body h2{margin:26px 0 10px;font-size:23px}.lesson-body h2:first-child{margin-top:0}.lesson-body p{font-size:16px;line-height:1.8}.lesson-body section{scroll-margin-top:40px}.lesson-aside{align-self:start}.source-refs{white-space:nowrap;text-underline-offset:2px;margin-left:4px;font-size:11px;font-weight:400;text-decoration:underline}.pearls li{padding:13px 0 13px 23px;line-height:1.65}.takeaway-box{background:#e7f4ef;border:1px solid #d3e8df;border-radius:12px;margin:26px 0;padding:24px}.takeaway-box h2,.takeaway-box h3{margin-top:0}.takeaway-box .pearls{margin:6px 0 0}.takeaway-box .pearls li{border-color:#d3e5de;font-size:15px}.takeaway-box .pearls li:last-child{border-bottom:0}.surgical-application{padding-top:20px}.option{align-items:flex-start;gap:12px;min-height:48px;line-height:1.5;display:flex}.option-letter{color:#64828b;text-align:center;border:1px solid #c7d8db;border-radius:4px;min-width:24px;margin-top:1px;font-size:12px;line-height:23px}.rationale-list{gap:9px;display:grid}.rationale{background:#f8fafb;border-left:2px solid #d7e1e5;padding:12px 14px}.rationale.right{background:#ecf6f2;border-color:#389581}.rationale>span{letter-spacing:.04em;color:#53777b;font-size:11px;font-weight:700}.rationale p{margin:3px 0 0;font-size:14px;line-height:1.6}.feedback-source{margin:18px 0}.feedback>.button{margin-top:5px}.question-box{margin:24px 0;padding:24px}.question-box h3{font-size:18px;line-height:1.55}.map-panel{color:var(--text);background:#edf3f4;border:1px solid #dce7e8}.map-panel .eyebrow{padding-left:5px;font-size:10px}.map-panel h2{font-size:19px;line-height:1.4}.body-map{aspect-ratio:970/2200;background:0 0;width:min(100%,194px);height:auto;margin:20px auto;overflow:visible}.body-map img{object-fit:fill;filter:grayscale()brightness(.9)sepia(.15)hue-rotate(120deg);opacity:.65;width:100%;height:100%;display:block}.body-point{background:#25887b;border:2px solid #f2fffc;width:28px;height:28px;box-shadow:0 0 0 5px #2a887b1b}.body-point:after{content:"";position:absolute;inset:-8px}.body-point.active,.body-point:hover{background:#c4994c;border-color:#fff6d9;box-shadow:0 0 0 6px #c4994c22}.chip{color:#52727b;background:#fff;border-color:#d2e1e4;padding:8px 10px;font-size:12px}.chip.active{background:var(--navy);border-color:var(--navy);color:#fff}.map-credit{color:#71868b;font-size:10px}.flap-card{padding:25px}.flap-card h3{font-size:21px}.flap-card p{line-height:1.6}.anatomy-figure{border:1px solid var(--line);background:#fff;border-radius:10px;margin:20px 0;padding:18px}.anatomy-figure img{object-fit:contain;width:100%;max-height:450px}.anatomy-figure figcaption{color:#4d6b75;margin-top:12px;font-size:14px}.anatomy-figure .credit{margin:10px 0 0;font-size:11px;line-height:1.6}.harvest-step{border-bottom:1px solid var(--line);grid-template-columns:32px 1fr;gap:15px;padding:24px 0;display:grid}.harvest-step h3{margin-bottom:8px;font-size:18px}.harvest-step p{font-size:15px}.step-index{color:var(--teal);padding-top:3px;font-size:12px;font-weight:700}.instrument-chips{flex-wrap:wrap;gap:7px;display:flex}.instrument-chip{color:var(--teal);background:#f2faf7;border:1px solid #c7e0d9;border-radius:5px;padding:5px 9px;font-size:12px}.instrument-chip:hover{background:#e1f3ec}.instrument-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.instrument-card{border:1px solid var(--line);background:#fff;border-radius:12px;display:block;overflow:hidden}.instrument-photo{background:#fff;height:220px;padding:22px}.instrument-photo img{object-fit:contain;width:100%;height:100%}.instrument-no-photo{color:#617a7e;background:#e7efef;justify-content:center;align-items:center;height:150px;font-size:12px;display:flex}.instrument-info{border-top:1px solid #edf1f2;padding:22px}.instrument-info h3{font-size:19px}.instrument-info p{color:var(--muted);font-size:14px}.topic-list{color:var(--muted);padding-left:18px;font-size:14px}.topic-list li{padding:7px 0}.video-row{border-bottom:1px solid var(--line);grid-template-columns:35px 1fr;gap:12px;padding:16px 0;display:grid}.video-row:last-child{border-bottom:0}.play-icon{width:34px;height:34px;color:var(--teal);background:#e4f1ed;border-radius:50%;margin-top:2px;font-size:20px}.title-button{text-align:left;color:var(--text);background:0 0;padding:0;font-size:14px;font-weight:600;line-height:1.45}.video-row small{color:var(--muted);margin-top:5px;font-size:11px;display:block}.media-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.video-poster{aspect-ratio:16/9;background:#173f4a;width:100%;padding:0;display:block;position:relative;overflow:hidden}.video-poster img{object-fit:cover;width:100%;height:100%;display:block}.video-title-art{text-align:left;color:#fff;background:linear-gradient(120deg,#1b525e,#102f3d);flex-direction:column;justify-content:center;gap:13px;height:100%;padding:25px;display:flex}.video-title-art span{letter-spacing:.16em;color:#9ddbd3;font-size:8px}.video-title-art strong{max-width:85%;font:700 21px/1.3 Manrope}.poster-play{color:#fff;background:#183d4ab3;border:1px solid #ffffff7a;border-radius:50%;justify-content:center;align-items:center;width:37px;height:37px;font-size:24px;display:flex;position:absolute;bottom:17px;right:18px}.video-format{color:#21424a;background:#ffffffed;border-radius:4px;padding:3px 8px;font-size:10px;position:absolute;bottom:13px;left:14px}.media-info{padding:22px}.media-info h3{font-size:17px;line-height:1.45}.media-info .eyebrow{font-size:9px}.media-info .row{margin-top:16px}.media-info p{font-size:12px}.load-more{text-align:center;padding:30px}.video-frame{aspect-ratio:16/9;width:100%;min-height:200px}.video-frame.portrait{aspect-ratio:9/16;width:min(100%,340px);max-height:70vh;margin:auto}.video-frame iframe{border:0;border-radius:8px;width:100%;height:100%}.modal-links{margin:20px 0}.guide-row{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:18px;padding:22px 0;display:flex}.guide-row:last-child{border-bottom:0}.guide-row h3{margin:0 0 5px;font-size:16px;line-height:1.45}.guide-row .subtle{font-size:12px}.guide-frame{border:1px solid var(--line);background:#fff;border-radius:8px;width:100%;height:65vh}.anki-panel{padding:32px}.anki-panel p{max-width:760px;color:var(--muted)}.anki-panel .toolbar{margin-bottom:15px}.account-summary{border:1px solid var(--line);background:#fff;border-radius:12px;align-items:center;gap:16px;margin-bottom:24px;padding:24px;display:flex}.account-summary h2{margin:0 0 6px;font-size:22px}.account-summary p{margin:0}.account-summary>.text-link{margin-left:auto}.progress-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;display:grid}.progress-grid h3{font-size:17px}.signin-card{margin-bottom:25px;padding:30px}.signin-card p{max-width:620px;color:var(--muted)}.modal-open{overflow:hidden}.lesson-aside>.card{padding:23px}.review-card{max-width:850px}.review-card h2{font-size:24px}.review-card .feedback p{font-size:15px}.review-card .feedback .rationale p{font-size:14px}.feedback p{margin-bottom:14px}.track h3{letter-spacing:-.025em}footer{font-size:11px}@media (max-width:1200px){.media-grid,.instrument-grid,.progress-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-layout{grid-template-columns:minmax(0,1fr) 260px}.sidebar{width:215px}.workspace{margin-left:215px}.lesson-body{padding:24px}}@media (max-width:1000px){.lesson-layout{grid-template-columns:1fr}.lesson-aside{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-aside>.card:first-child{grid-column:1/-1}.atlas-layout{grid-template-columns:245px minmax(0,1fr)}}@media (max-width:820px){.sidebar{z-index:20;border-right:0;border-bottom:1px solid var(--line);background:#fffffffa;width:100%;padding:12px 20px 0;position:sticky;top:0}.brand{justify-content:flex-start;width:max-content}.brand-logo{object-fit:contain;width:150px;max-height:54px}.sidebar nav{scrollbar-width:none;gap:5px;margin-top:7px;padding-bottom:9px}.sidebar nav a{border-radius:6px;padding:8px 11px;font-size:12px}.sidebar nav a.active{box-shadow:none;background:#e7f3ee}.workspace{margin-left:0}.topbar{height:56px;padding:0 22px}.topbar>span{font-size:11px}.home-grid{gap:14px}.feature-panel,.review-panel{padding:24px}.feature-panel h2,.review-panel h2{font-size:24px}.track h3{font-size:18px}.lesson-meta,.account-link{font-size:12px}.account-link small{font-size:10px}.atlas-layout{grid-template-columns:245px minmax(0,1fr)}.tabs{scroll-margin-top:130px}.lesson-body section{scroll-margin-top:140px}}@media (max-width:580px){.sidebar{padding:10px 16px 0}.brand-logo{width:142px;max-height:50px}.sidebar nav a{padding:8px 10px;font-size:11px}.sidebar nav{margin-top:4px}.topbar{height:54px;padding:0 20px}.topbar>span{max-width:170px}.avatar{width:29px;height:29px}.page-heading{margin-bottom:24px}main{padding:27px 20px 40px}.page-heading h1{font-size:30px;line-height:1.22}.page-heading p:last-child{font-size:14px}.home-grid{grid-template-columns:1fr;gap:14px;margin-bottom:30px}.feature-panel{border-radius:14px;min-height:0;padding:25px}.feature-panel h2{font-size:26px;line-height:1.3}.feature-panel p{margin:15px 0 20px;font-size:14px}.review-panel{padding:22px 25px}.review-panel h2{font-size:23px}.review-panel h2 br{display:none}.review-panel p{margin:10px 0 17px;font-size:14px}.track-grid{gap:13px}.track{padding:23px}.track-number{margin-bottom:11px}.track-progress{margin:4px 0 16px}.track p{margin-bottom:15px}.section-head h2{font-size:21px}.section-head>span{font-size:11px}.lesson-body{padding:22px 18px}.lesson-body p{font-size:15px;line-height:1.8}.lesson-body .pearls li{font-size:15px}.lesson-body h2{font-size:22px}.lesson-aside{grid-template-columns:1fr}.question-box{margin:20px 0;padding:19px 15px}.question-box h3{font-size:17px}.option{padding:13px 11px;font-size:14px}.feedback{padding:14px}.rationale{padding:10px}.rationale p{font-size:13px!important}.takeaway-box{padding:20px 17px}.atlas-layout{grid-template-columns:1fr}.map-panel{padding:23px}.map-panel h2,.map-panel>.eyebrow{text-align:center}.body-map{width:155px;max-width:155px;height:auto;margin:20px auto}.region-chips{gap:6px}.map-credit{margin-top:13px}.flap-card{padding:23px}.flap-card .actions{margin-top:10px}.flap-card h3{font-size:22px}.facts{grid-template-columns:1fr}.fact{padding:21px}.fact p{font-size:15px}.fact label{font-size:10px}.tabs{margin-bottom:20px}.tab{padding:12px 10px;font-size:12px}.instrument-grid,.media-grid,.progress-grid{grid-template-columns:1fr}.instrument-photo{height:230px}.instrument-info{padding:23px}.media-card{border-radius:13px}.video-title-art strong{font-size:23px}.media-info h3{font-size:20px}.media-info .eyebrow{font-size:10px}.media-info p{font-size:13px}.media-grid{gap:20px}.guide-row{flex-direction:column;align-items:flex-start;gap:12px}.guide-row h3{font-size:17px}.guide-row .row{gap:18px}.anki-panel{padding:25px 20px}.anki-panel h2{font-size:25px}.anki-panel p{font-size:15px}.anki-panel .button{width:100%}.review-card{margin:22px 0;padding:23px 18px}.review-card h2{font-size:22px;line-height:1.5}.stats .stat{padding:16px 12px}.stat strong{font-size:22px}.stat span{margin-top:7px;font-size:11px;line-height:1.4;display:block}.toolbar{gap:9px}.toolbar select{font-size:14px}.toolbar>.button{flex:1}.account-summary{flex-wrap:wrap;gap:12px;padding:20px}.account-summary h2{font-size:20px}.account-summary>.text-link{margin-left:66px}.account-summary .subtle{font-size:12px}.progress-grid .card{padding:23px}.progress-label{font-size:12px}.harvest-step{grid-template-columns:25px 1fr;gap:10px}.harvest-step h3{font-size:18px}.harvest-step p{font-size:15px}.instrument-chip{padding:6px 8px;font-size:11px}dialog{border-radius:13px;width:calc(100% - 20px);max-height:94dvh;padding:20px 15px}.dialog-header{gap:10px}.dialog-header h2{font-size:19px;line-height:1.4}.close{flex:0 0 35px;width:35px;height:35px}.guide-frame{height:65dvh}.modal-links .button{font-size:12px}.anatomy-figure{padding:13px}.video-frame{min-height:200px}.video-frame.portrait{width:min(100%,300px)}footer{padding:22px 20px;line-height:1.7}}.editorial-note{background:#fff7e6;border-left:3px solid #ad782c;border-radius:8px;margin:20px 0;padding:18px 22px}.editorial-note h3{margin-bottom:8px;font-size:16px}.editorial-note p{margin-bottom:8px;font-size:14px}@media (max-width:820px){.topbar{z-index:60;background:0 0;border:0;width:auto;height:42px;min-height:0;padding:0;position:fixed;top:15px;right:20px}.topbar>span{display:none}.topbar .account-link{gap:7px;font-size:12px}.topbar .account-link small{display:none}.topbar .avatar{width:30px;height:30px}.brand{max-width:160px}}.image-references{background:#f1f7f6;border:1px solid #d9e8e4;border-radius:9px;margin:20px 0;padding:16px 20px}.image-references p{margin:0 0 8px;font-size:14px}.image-references p:last-child{margin-bottom:0}.image-references .subtle{margin-top:6px;font-size:12px;display:block}.application-note{background:#f0f7f4;border-radius:8px;margin-top:12px;padding:12px 14px;font-size:13px!important}.selection-context{background:#e9f3ef;border-radius:8px;padding:12px 16px;font-size:13px}.selection-context .link-button{margin-left:10px;font-size:12px}#video-topic{text-overflow:ellipsis;max-width:260px}@media (max-width:580px){#video-topic{max-width:none}}.auth-form{max-width:640px;margin-top:22px}.auth-form>label{margin-bottom:8px;font-size:13px;font-weight:700;display:block}.auth-input-row{gap:10px;margin-bottom:12px;display:flex}.auth-input-row input{min-width:0;color:var(--text);background:#fff;border:1px solid #c8d7dc;border-radius:8px;flex:1;padding:12px 14px;font-size:16px}.auth-input-row input:disabled{color:var(--muted);background:#f2f5f6}.auth-form .subtle{font-size:12px}.auth-destination{overflow-wrap:anywhere;font-size:14px}.auth-message{color:var(--teal);min-height:1em;margin:16px 0 0;font-size:13px}.auth-message.error{color:#8b3731}.account-notice{background:#edf5f2;border:1px solid #d7e7e0;border-radius:9px;margin:18px 0;padding:16px 18px;font-size:14px}.account-notice p{margin:10px 0}.account-signout{white-space:nowrap;margin-left:auto}.persistence-card,.backup-panel{margin-top:24px}.backup-panel>p{max-width:760px;color:var(--muted);font-size:14px}.backup-preview{background:#f2f7f5;border:1px solid #dce9e3;border-radius:10px;margin-top:22px;padding:20px}.backup-preview p{font-size:14px}.backup-preview .subtle{font-size:12px}.file-button{cursor:pointer}.file-button:focus-within{outline-offset:4px;outline:3px solid #d4a029}.backup-preview h4{font-size:17px}@media (max-width:580px){.auth-input-row{flex-direction:column}.signin-card{padding:25px 20px}.auth-form .button{min-height:46px}.auth-input-row input{width:100%}.backup-panel{padding:24px 20px}.backup-panel>.row{flex-direction:column;align-items:stretch}.backup-panel>.row .button{width:100%}.backup-preview{padding:17px}.backup-preview .row{flex-direction:column;align-items:stretch}.account-signout{margin-left:66px}}
