@font-face{font-family:LocalCalibri;src:local(Calibri);font-display:swap}
:root{--ink:#282932;--muted:#62626a;--accent:#722e38;--gold:#ba954e;--line:#e6e0dc;--paper:#fff;scroll-behavior:smooth;color-scheme:light}
*{box-sizing:border-box}body{margin:0;color:var(--ink);background:#fff;font-family:LocalCalibri,Calibri,"Segoe UI",Arial,sans-serif;font-size:17px;line-height:1.5}a{color:inherit}button,input{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}a,button{touch-action:manipulation}button{cursor:pointer}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #ba954e;outline-offset:5px}button:disabled{cursor:default}[hidden]{display:none!important}.skip{position:fixed;top:-100px;left:20px;background:white;padding:12px;z-index:10}.skip:focus{top:15px}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden}
.site-header{background:linear-gradient(105deg,#6b2932,#401d25);border-bottom:3px solid #d5b56f;color:#fff}.header-inner{max-width:1380px;padding:15px 56px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:24px;min-height:110px}.brand{display:flex;align-items:center;gap:24px}.brand img{object-fit:contain;filter:drop-shadow(0 3px 6px #0004)}.brand-eyebrow{display:block;font-size:12px;letter-spacing:.19em;color:#ead3a1}.brand strong{display:block;font-size:29px;letter-spacing:.015em;font-weight:600}.header-credit{font-size:16px;letter-spacing:.03em;color:#eadbc8}.wordmark{display:flex;align-items:center;gap:15px;font-size:29px;letter-spacing:-.025em;text-decoration:none;font-weight:600}.science-mark{font-size:46px;font-weight:400;color:var(--accent);line-height:1}
main{max-width:1380px;margin:auto;padding:0 56px}.intro{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:center;min-height:525px;padding:49px 0 38px}.intro-copy{position:relative;z-index:1}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-weight:700;font-size:12px;color:var(--accent);margin:0 0 13px}h1{font-size:clamp(46px,4.7vw,68px);letter-spacing:-.045em;line-height:1.04;font-weight:600;margin:0 0 23px}h1 em{color:var(--accent);font-style:normal}.intro-text{max-width:430px;font-size:20px;line-height:1.5;color:var(--muted);margin:0 0 27px}.primary{display:inline-flex;align-items:center;gap:35px;padding:12px 21px;border-radius:5px;text-decoration:none;background:var(--accent);color:#fff;font-weight:600;transition:background .2s,transform .2s;min-height:48px}.primary:hover{background:#4e1f28;transform:translateY(-2px)}.collection-note{display:flex;align-items:center;gap:13px;margin-top:25px;color:var(--muted);font-size:13px;line-height:1.25}.collection-note strong{font-size:34px;font-weight:400;color:var(--accent);border-right:1px solid #ccb9bb;padding-right:13px;line-height:1}.hero-model{position:relative;align-self:stretch;display:flex;align-items:center;justify-content:center;min-width:0}.hero-model>img{position:relative;width:100%;max-height:435px;height:auto;object-fit:contain;z-index:1;filter:drop-shadow(0 15px 16px #3b2a201f)}.model-orbit{position:absolute;inset:15px 0;border:1px solid #d5c3a772;border-radius:50%;transform:rotate(-20deg)}.model-orbit:after{content:"";position:absolute;inset:25px -15px;border:1px solid #d5c3a745;border-radius:50%;transform:rotate(40deg)}.model-caption{position:absolute;bottom:0;right:0;display:flex;gap:12px;align-items:flex-start;z-index:2;font-size:13px;line-height:1.4;background:#ffffffdc;padding:8px 10px}.caption-line{width:30px;border-top:1px solid var(--gold);margin-top:8px}
.lesson-library{padding:37px 0 15px;border-top:1px solid var(--line);scroll-margin-top:20px}.library-heading{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-bottom:26px}h2{font-size:34px;font-weight:600;line-height:1.15;letter-spacing:-.035em;margin:0}.library-heading .eyebrow{margin-bottom:8px}.search{display:flex;align-items:center;gap:12px;border:1px solid #d9d6d4;background:#fff;border-radius:5px;padding:0 15px;min-height:49px;width:330px}.search svg{color:#74717a;flex-shrink:0}.search input{min-width:0;width:100%;height:47px;outline:none;border:0;background:transparent;font-size:15px;color:var(--ink)}.search:focus-within{outline:2px solid var(--accent);outline-offset:2px}.search input:focus-visible{outline:0}.filters{display:flex;gap:9px;flex-wrap:wrap}.filter{border:1px solid #e0d9d7;background:#fff;border-radius:30px;color:#62535a;padding:9px 17px;font-size:14px;min-height:43px}.filter:hover{border-color:var(--accent)}.filter.selected{background:var(--accent);border-color:var(--accent);color:white}.result-count{font-size:13px;letter-spacing:.02em;color:var(--muted);margin:19px 0 17px}.lesson-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:23px}.lesson-card{min-width:0;border:1px solid #e4dfdc;border-radius:9px;overflow:hidden;text-decoration:none;background:white;display:flex;flex-direction:column;box-shadow:0 3px 8px #28202604;transition:transform .22s,box-shadow .22s,border-color .22s}.lesson-card:hover{transform:translateY(-5px);box-shadow:0 12px 25px #36223112;border-color:#bb989d}.card-image{position:relative;height:184px;background:radial-gradient(ellipse at 45% 50%,#24323b,#080e14);overflow:hidden;display:flex;align-items:center;justify-content:center}.card-image img{width:100%;height:100%;object-fit:contain;transition:transform .4s}.lesson-card:hover .card-image img{transform:scale(1.05)}.lesson-number{position:absolute;top:12px;left:12px;font-size:11px;background:#15202ae8;color:#edddbc;border:1px solid #ffffff35;border-radius:50%;width:26px;height:26px;display:grid;place-items:center;letter-spacing:.04em}.card-copy{padding:20px 20px 17px;display:flex;flex-direction:column;flex:1}.card-topic{font-size:10px;text-transform:uppercase;letter-spacing:.095em;font-weight:700;color:var(--accent)}h3{font-size:23px;line-height:1.12;letter-spacing:-.025em;font-weight:600;margin:9px 0 10px}.card-copy p{font-size:15px;line-height:1.45;color:var(--muted);margin:0 0 22px}.open-lesson{font-size:14px;font-weight:600;color:var(--accent);display:flex;justify-content:space-between;align-items:center;border-top:1px solid #eee7e3;padding-top:12px;margin-top:auto}.open-lesson>span{font-size:20px;font-weight:400;line-height:1}.empty{text-align:center;padding:55px 20px;background:#ffffffdf;border:1px dashed #bca9ab;border-radius:8px}.empty h3{margin:0 0 12px}.empty p{color:var(--muted)}.empty button{border:0;padding:12px 22px;background:var(--accent);color:white;border-radius:5px}
.learning-note{display:flex;align-items:center;gap:22px;padding:36px 0 40px;margin-top:34px;border-top:1px solid var(--line)}.learning-note>span{font:68px Georgia,serif;color:var(--gold);line-height:.8;height:35px}.learning-note strong{font-size:23px;font-weight:500}.learning-note p{font-size:15px;color:var(--muted);margin:3px 0 0}.learning-note>a{margin-left:auto;text-decoration:none;font-size:13px;color:var(--accent);padding:12px 0 12px 12px;white-space:nowrap}.site-footer{max-width:1268px;margin:auto;border-top:1px solid var(--line);padding:22px 0 25px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}
.independent{--accent:#225d78;--gold:#6e98ab;--line:#9eb9c44a;background:#eef5f8 url(background.webp) center top/cover fixed no-repeat}.independent .site-header{background:#f8fcffe6;border-bottom:1px solid #9fb6c45c;color:#234d60;backdrop-filter:blur(8px)}.independent .header-inner{min-height:94px}.independent .header-credit{color:#536e7b;font-size:14px}.independent .intro{min-height:541px}.independent .primary:hover{background:#143e52}.independent .lesson-card{border-color:#d4e0e5;box-shadow:0 3px 12px #234f6810}.independent .lesson-card:hover{border-color:#7cabc0;box-shadow:0 10px 25px #2452691f}.independent .model-orbit{border-color:#6c9bb04a}.independent .model-orbit:after{border-color:#6c9bb02a}.independent .model-caption{background:#f4fafde0}.independent .filter{color:#355c70;border-color:#b6ccd8;background:#f9fdffbd}.independent .filter.selected{background:var(--accent);color:#fff}.independent .card-topic{color:#42798f}.independent .open-lesson{border-color:#e1eaee}
@media(min-width:1500px){.intro{min-height:560px}.hero-model>img{max-height:465px}.card-image{height:205px}}
@media(max-width:1100px){.header-inner{padding:15px 32px}main{padding:0 32px}.lesson-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.site-footer{margin:0 32px}.card-image{height:190px}.intro{min-height:500px}.hero-model>img{max-height:390px}.filter{padding:8px 14px}.intro-text{font-size:18px}}
@media(max-width:760px){.header-inner{padding:13px 22px;min-height:87px;gap:15px}.brand{gap:12px}.brand img{width:62px;height:62px}.brand strong,.wordmark{font-size:23px}.brand-eyebrow{font-size:9px;letter-spacing:.12em}.header-credit{font-size:12px;max-width:90px;text-align:right}.independent .header-credit{font-size:11px;max-width:100px}.independent .header-inner{min-height:78px}.science-mark{font-size:35px}main{padding:0 22px}.intro,.independent .intro{grid-template-columns:1fr;gap:10px;padding:36px 0 25px;min-height:0}.intro h1{font-size:48px}.intro-text{max-width:420px;font-size:18px;margin-bottom:22px}.collection-note{margin-top:20px}.hero-model{min-height:275px;max-width:470px;width:100%;margin:auto}.hero-model>img{max-height:310px}.model-orbit{inset:10px 25px}.model-caption{right:0;font-size:11px}.library-heading{display:block;margin-bottom:20px}h2{font-size:30px}.search{width:100%;margin-top:22px}.filters{gap:8px}.filter{font-size:12px;padding:9px 13px;min-height:42px}.lesson-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.card-image{height:170px}.card-copy{padding:16px 14px 13px}h3{font-size:21px}.card-topic{font-size:9px}.card-copy p{font-size:14px;margin-bottom:18px}.open-lesson{font-size:13px}.lesson-number{top:9px;left:9px}.learning-note{gap:12px;align-items:flex-start;flex-wrap:wrap;margin-top:22px;padding:27px 0}.learning-note strong{font-size:22px}.learning-note p{font-size:13px}.learning-note>a{margin-left:39px;padding:0}.site-footer{margin:0 22px;padding:20px 0;display:block;font-size:11px}.site-footer span{display:block;margin-bottom:6px}.independent{background-image:url(background-mobile.webp);background-attachment:scroll}}
@media(max-width:380px){.lesson-grid{grid-template-columns:1fr}.card-image{height:220px}.header-credit{display:none}.intro h1{font-size:43px}.brand strong,.wordmark{font-size:22px}}
@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}
html{overflow-x:clip}.hero-model{overflow:hidden}.hero-model>img{border-radius:13px}.wordmark img.science-mark{width:37px;height:37px;filter:none}.independent{background-image:linear-gradient(90deg,#f5faff99,#f5faff20 65%),url(background.webp)}
@media(max-width:760px){.independent{background-image:linear-gradient(#f5faff99,#f5faff40),url(background-mobile.webp)}}
@media(max-width:480px){.brand strong,.wordmark{white-space:nowrap}.school .header-credit{font-size:11px;white-space:nowrap;max-width:none}.school .brand strong{font-size:22px}.school .brand img{width:54px;height:54px}.independent .header-credit{display:none}}
.school .brand strong{color:#ecd098}
.breadcrumbs{display:flex;align-items:center;gap:12px;padding:14px 0 0;font-size:14px;color:var(--muted);min-height:44px}.breadcrumbs a{display:inline-flex;align-items:center;min-height:44px;color:var(--accent);text-decoration:none}.breadcrumbs a:hover{text-decoration:underline}.breadcrumbs [aria-current]{font-weight:600;color:var(--ink)}.breadcrumbs+.intro{padding-top:20px}
.breadcrumbs .home-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-width:112px;min-height:48px;padding:10px 17px;border:1px solid #174b65;border-radius:6px;background:#225d78;color:#fff;font-size:18px;font-weight:600;box-shadow:0 3px 8px #163b4b30;text-decoration:none}.breadcrumbs .home-button:hover{background:#153f55;text-decoration:none}.home-button svg{flex-shrink:0}
.independent .lesson-card{border-color:#afc3cf;box-shadow:0 8px 20px #183c5138,0 2px 6px #183c511c}.independent .lesson-card:hover{border-color:#6694ac;box-shadow:0 13px 28px #183c514d,0 3px 8px #183c5126}.independent .card-image{box-shadow:0 3px 8px #102c3d40;z-index:1}
.school{--ink:#f3eee8;--muted:#bdb5b4;--accent:#e8c77a;--gold:#e8c77a;--line:#42323a;--paper:#111115;background:#000;color-scheme:dark}.school h1,.school h2{color:#e8c77a}.school .primary{background:#e8c77a;color:#211b15}.school .primary:hover{background:#f3dca8}.school .search{border-color:#59414c;background:#171319}.school .search svg{color:#d0bdbd}.school .filter{border-color:#614650;background:#1c151b;color:#e4d7d1}.school .filter.selected{background:#e8c77a;border-color:#e8c77a;color:#211b15}.school .lesson-card{background:#111115;border-color:#49373f;box-shadow:0 6px 18px #0009}.school .lesson-card:hover{border-color:#b59554;box-shadow:0 12px 24px #000b}.school .open-lesson{border-color:#49373f}.school .model-caption{background:#111115ed;color:#e7ddcf}.school .empty{background:#111115;border-color:#94733f}.school .empty button{color:#211b15}.school .collection-note strong{border-right-color:#786249}
.hero-model{--hero-art-width:544px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:13px;overflow:visible;transform:translateY(-14px)}.hero-model>img{width:min(100%,var(--hero-art-width));height:auto;max-height:none;filter:none;box-shadow:0 20px 34px #102c3d45,0 5px 12px #102c3d26}.model-caption{position:static;bottom:auto;right:auto;display:flex;align-items:center;justify-content:flex-end;gap:10px;width:min(100%,var(--hero-art-width));padding:0 2px;background:transparent!important;text-align:right;font-size:14px;line-height:1.4;box-shadow:none}.model-caption .caption-line{width:25px;margin:0;flex-shrink:0}.school .hero-model>img{box-shadow:0 20px 34px #000a,0 0 0 1px #8d744b40}
@media(min-width:1500px){.hero-model{--hero-art-width:581px}}
@media(max-width:1100px){.hero-model{--hero-art-width:488px}}
@media(max-width:760px){.hero-model{--hero-art-width:388px;transform:none}.model-caption{font-size:12px}}