@charset "UTF-8";
@font-face{font-family:LabSans;src:url('/chemistry/lab/assets/inter-latin-wght-normal-Dx4kXJAl.woff2') format('woff2');font-weight:100 900;font-display:swap}
@font-face{font-family:LabTamil;src:url('/chemistry/lab/assets/noto-sans-tamil-tamil-wght-normal-iihgzMBi.woff2') format('woff2');font-weight:100 900;font-display:swap;unicode-range:U+0B80-0BFF,U+200C-200D,U+20B9,U+25CC}
:root{--ink:#171e1b;--muted:#6a706b;--paper:#f8f7f3;--white:#fff;--dark:#151c19;--gold:#8d6e3e;--champagne:#d1b887;--line:#e0e0d9;--font:LabSans,LabTamil,Inter,system-ui,-apple-system,"Segoe UI",sans-serif;--serif:Georgia,"Times New Roman",serif}
*{box-sizing:border-box}[hidden]{display:none!important}html{scroll-behavior:smooth;scroll-padding-top:28px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;height:auto}a,button,input{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid #9d7b46;outline-offset:5px}::selection{background:#dfcba6;color:#141b18}h1,h2,h3,p,figure{margin-top:0}h1,h2,h3{line-height:1.1;letter-spacing:-.04em}h1{font-size:clamp(44px,5.2vw,77px);font-weight:500}h2{font-size:clamp(32px,3.3vw,49px);font-weight:450}h3{font-weight:500;font-size:25px}em{font-family:var(--serif);font-weight:400}p{color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;top:-100px;left:20px;background:var(--ink);color:white;padding:8px 18px;z-index:100}.skip:focus{top:10px}.topbar{max-width:1600px;margin:auto;display:flex;align-items:center;justify-content:space-between;padding:22px 5%;gap:26px;border-bottom:1px solid var(--line);background:var(--paper);min-height:94px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brand-emblem{position:relative;display:block;overflow:hidden;width:45px;height:43px;mix-blend-mode:multiply}.brand-emblem img{position:absolute;width:90px;max-width:none;height:90px;left:-22px;top:-16px}.brand-type{font-size:16px;letter-spacing:.035em;line-height:1.4;font-weight:600}.brand-type small{display:block;font-size:7px;letter-spacing:.14em;font-weight:500;color:#74766c;margin-top:3px}.topbar nav{display:flex;align-items:center;gap:25px;font-size:11px;font-weight:500;white-space:nowrap}.topbar nav a{padding:5px 0;position:relative}.topbar nav a:hover,.topbar nav a[aria-current]{color:var(--gold)}.founder-nav:after{content:"";display:inline-block;height:4px;width:4px;background:var(--gold);border-radius:50%;margin:0 0 2px 6px}.nav-search{display:flex;align-items:center;gap:10px;font-size:10px;border:1px solid #d8d8d0;border-radius:3px;padding:9px 12px;white-space:nowrap}.nav-search>span:first-child{font-size:20px;line-height:1}.nav-search kbd{border:1px solid #e0e0d8;padding:0 4px;font-size:9px;font-family:inherit;color:#90938a;margin-left:8px}.eyebrow{font-size:9px;font-weight:600;letter-spacing:.16em;line-height:1.6;text-transform:uppercase;color:var(--gold);display:flex;align-items:center;gap:9px;margin-bottom:20px}.status-dot{height:5px;width:5px;display:inline-block;border-radius:50%;background:var(--gold);flex-shrink:0}.hero{max-width:1600px;margin:auto;padding:72px 5% 0;display:grid;grid-template-columns:1.08fr 1fr;gap:5%;position:relative}.hero-copy{padding-top:18px}.hero h1{font-size:clamp(48px,5.6vw,85px);margin:25px 0;line-height:1.04;letter-spacing:-.055em;font-weight:500}.hero h1 em{font-size:1.02em}.hero-description{font-size:14px;line-height:1.9;max-width:475px;margin-bottom:26px}.hero-actions{display:flex;align-items:center;gap:25px;margin:26px 0 30px}.button{display:inline-flex;justify-content:center;align-items:center;gap:24px;padding:14px 21px;border:1px solid transparent;border-radius:3px;font-size:11px;font-weight:550;line-height:1.6;transition:background .2s,transform .2s}.button:hover{transform:translateY(-2px)}.primary{background:var(--ink);color:#fff}.primary:hover{background:#343e37}.light{background:var(--champagne);color:#17201a}.light:hover{background:#e0caa2}.outline{background:transparent;border-color:var(--line)}.text-link{display:inline-flex;align-items:center;gap:18px;font-size:11px;font-weight:500}.text-link:hover{text-decoration:underline;text-underline-offset:5px}.hero-tamil{font-size:11px;line-height:1.9;color:#707568;margin-bottom:24px}.hero-tags{display:flex;gap:18px;flex-wrap:wrap;font-size:8px;letter-spacing:.09em;color:#7a7e72}.hero-tags span+span:before{content:"/";color:#b0b2a7;margin-right:18px}.hero-visual{background:radial-gradient(ellipse at 65% 15%,#29342e 0,#19211d 45%,#141b17 100%);padding:24px 27px;border-radius:4px;position:relative;overflow:hidden;align-self:start;color:#ede8dc;min-height:465px}.visual-top{display:flex;justify-content:space-between;color:#b9bdaf;font-size:8px;letter-spacing:.15em}.visual-top i{display:inline-block;width:4px;height:4px;background:var(--champagne);border-radius:50%;margin-right:7px}.science-visual{width:100%;height:auto;display:block;margin:10px 0 0}.visual-bottom{border-top:1px solid #c3c7b920;padding-top:20px;display:flex;justify-content:space-between;align-items:end}.visual-label{font-size:6.5px;letter-spacing:.12em;color:#adb7a9}.visual-bottom h2{font-family:var(--serif);font-size:26px;line-height:1.16;margin:10px 0 0;letter-spacing:-.025em;font-weight:400}.circle-link{border:1px solid #a5ac9852;border-radius:50%;width:40px;height:40px;display:grid;place-items:center;color:#d7c29b;font-size:20px;transition:background .2s}.circle-link:hover{background:#d7c29b;color:var(--ink)}.hero-footnote{grid-column:1/-1;display:flex;justify-content:space-between;gap:20px;font-size:9px;color:#7a7f73;padding:33px 0 30px;border-bottom:1px solid var(--line);margin-top:12px}.hero-footnote>span:last-child{font-size:7px;letter-spacing:.13em}.hero-footnote>span:last-child>span{font-size:14px;margin-left:18px}.metric-strip{max-width:1600px;padding:32px 5%;margin:auto;display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}.metric-strip>div{padding:0 30px;border-right:1px solid var(--line)}.metric-strip>div:first-child{padding-left:0}.metric-strip>div:last-child{border:0}.metric-strip strong{display:block;font-family:var(--serif);font-size:34px;letter-spacing:-.04em;line-height:1.2;font-weight:400}.metric-strip span{font-size:9px;color:#777d71;display:block;margin-top:9px}.section{max-width:1600px;margin:auto;padding:78px 5%}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}.section-heading h2{margin:0}.section-heading>p{font-size:11px;line-height:1.9;max-width:300px;margin:0 0 4px}.section-heading .eyebrow{margin-bottom:18px}.subject-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.subject-card{padding:23px 25px 20px;border:1px solid #dddfd6;background:#efefea;display:flex;flex-direction:column;overflow:hidden;transition:transform .25s,border-color .25s;border-radius:3px}.subject-card.chemistry{background:#f0ede5;border-color:#e0d9ca}.subject-card.biology{background:#eeefeb}.subject-card:hover{transform:translateY(-5px);border-color:#b7a47d}.subject-top{display:flex;justify-content:space-between;align-items:center;font-size:8px;letter-spacing:.12em;font-weight:600}.subject-top>span:last-child{font-size:18px;font-weight:400}.subject-art{height:200px;display:flex;align-items:center;justify-content:center;margin:15px -5px 17px;overflow:hidden}.subject-art svg{width:100%;height:100%}.anatomy-art{margin-left:-25px;margin-right:-25px;position:relative}.anatomy-art img{width:100%;height:100%;object-fit:cover;object-position:center 32%;mix-blend-mode:multiply;transition:transform .6s}.subject-card:hover .anatomy-art img{transform:scale(1.035)}.subject-card h3{font-size:27px;font-weight:450;letter-spacing:-.04em;margin:0 0 17px}.subject-card p{font-size:11px;line-height:1.9;flex:1;margin-bottom:25px}.subject-bottom{padding-top:17px;border-top:1px solid #2b382117;display:flex;align-items:center;gap:6px;font-size:10px;font-weight:550}.subject-bottom small{font-size:8px;color:#7c8175;margin-left:auto;font-weight:400}.subject-bottom b{font-size:16px;font-weight:400;margin-left:auto}.founder-preview{max-width:1440px;margin:0 auto;background:#19211c;color:#f5f0e5;position:relative;display:grid;grid-template-columns:.85fr 1.3fr;gap:7%;padding:0 7% 0 0;overflow:hidden;isolation:isolate;border-radius:3px}.founder-preview-image{height:530px;overflow:hidden;background:#f2f0e8}.founder-preview-image img{width:100%;height:100%;object-fit:cover;object-position:center 12%;mix-blend-mode:multiply}.founder-preview-copy{align-self:center;padding:45px 0;max-width:620px;position:relative;z-index:1}.founder-preview-copy .eyebrow{color:#cfb684;font-size:8px}.founder-preview h2{font-size:clamp(34px,3.1vw,48px);line-height:1.13;margin-bottom:23px;font-weight:400}.founder-preview h2 em{color:#dbc49c}.founder-name{font-size:12px;color:#e2d9c6;margin-bottom:12px}.founder-preview-copy>p:not(.eyebrow):not(.founder-name){font-size:12px;line-height:1.9;color:#b5beb1;max-width:530px}.founder-preview-copy .tamil-copy{font-size:11px!important;line-height:2!important;color:#c6cabc!important;margin:16px 0 25px}.chapter-number{font-family:var(--serif);font-size:290px;line-height:1;letter-spacing:-.07em;position:absolute;right:-45px;bottom:-45px;color:#ffffff03;z-index:0;pointer-events:none}.discovery-section{display:grid;grid-template-columns:1.45fr 1fr;gap:11%;align-items:center}.discovery-section>div>p:not(.eyebrow){font-size:12px;line-height:1.9}.search-form{display:flex;align-items:center;gap:10px;background:white;border:1px solid #d4d5cb;padding:8px;border-radius:3px;max-width:720px;margin-top:24px}.search-form:focus-within{outline:2px solid #8d6e3e;outline-offset:3px}.search-form input{flex:1;width:100%;min-width:0;outline:0;border:0;background:transparent;padding:10px;font-size:12px;color:var(--ink)}.search-form button{width:42px;height:42px;background:var(--ink);color:#fff;font-size:22px;border:0;border-radius:2px;flex-shrink:0}.search-hint{font-size:9px!important;margin:14px 0 0;color:#7e8377!important}.search-hint a{color:var(--ink);border-bottom:1px solid #b4baa9}.discovery-note{padding:20px 0 20px 50px;border-left:1px solid var(--line)}.discovery-note>span{font-family:var(--serif);font-size:70px;letter-spacing:-.06em;line-height:1;color:#9e8457;display:block;margin-bottom:18px}.discovery-note h3{font-size:27px;line-height:1.18;margin-bottom:22px;font-weight:400}.discovery-note p{font-size:11px;line-height:1.9}.discovery-note>a{font-size:10px;display:flex;align-items:center;gap:30px;margin-top:25px}.selected-lessons{padding-top:30px}.lesson-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.lesson-card{background:#fcfbf8;border:1px solid var(--line);padding:26px;display:flex;flex-direction:column;min-height:260px;border-radius:3px;transition:border-color .2s,transform .2s}.lesson-card:hover{border-color:#aa9369;transform:translateY(-3px)}.lesson-subject{display:flex;align-items:center;gap:8px;color:#6f755f;font-size:8px;font-weight:600;letter-spacing:.06em}.lesson-subject:before{content:"";height:4px;width:4px;display:inline-block;border-radius:50%;background:#7c8867}.lesson-subject.chemistry:before{background:#a58c60}.lesson-subject.biology:before{background:#a47565}.lesson-subject small{font-size:8px;color:#888d80;font-weight:400;margin-left:auto;letter-spacing:0}.lesson-card h3{font-size:21px;line-height:1.3;margin:20px 0 13px;font-weight:450;letter-spacing:-.025em;overflow-wrap:anywhere}.lesson-card p{font-size:11px;line-height:1.9;flex:1}.card-link{border-top:1px solid #e4e5db;margin-top:10px;padding-top:15px;font-size:10px;display:flex;justify-content:space-between;gap:15px}.free-banner{max-width:1440px;margin:0 auto 75px;padding:54px 60px;background:#e9e6dc;display:flex;justify-content:space-between;align-items:center;gap:40px;border-radius:3px}.free-banner .eyebrow{font-size:8px;margin-bottom:18px}.free-banner h2{margin:0 0 23px;font-size:42px;font-weight:400}.free-banner p{font-size:11px;line-height:1.9;margin:0}.free-banner>.button{background:var(--ink);color:white;flex-shrink:0}.site-footer{max-width:1600px;margin:auto;padding:0 5% 24px;display:grid;grid-template-columns:1.5fr .8fr .8fr .7fr;gap:35px;font-size:11px}.footer-brand{font-size:17px;font-weight:600;letter-spacing:.03em;display:block;line-height:1.5}.footer-brand span{display:block;font-size:7px;color:#727867;font-weight:500;letter-spacing:.1em;margin-top:5px}.site-footer p{font-size:11px;line-height:1.9;margin:17px 0}.footer-founder{font-size:10px;color:var(--gold)!important}.site-footer>div>strong{font-size:9px;font-weight:600;display:block;margin:2px 0 19px}.site-footer>div>a:not(.footer-brand){display:block;font-size:10px;margin-bottom:9px;color:#71776a}.site-footer>div>a:hover{text-decoration:underline;text-underline-offset:4px}.footer-logo{text-align:center}.footer-logo img{width:130px;height:100px;object-fit:cover;object-position:center 52%;mix-blend-mode:multiply;display:block;margin:-12px auto 7px}.footer-logo>span{font-size:6px;letter-spacing:.12em;color:#7d806d}.footer-bottom{grid-column:1/-1;margin-top:25px;padding-top:22px;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:#929587;font-size:8px}.footer-bottom>span:last-child{font-size:6.5px;letter-spacing:.11em}.page-hero{max-width:1440px;margin:auto;padding:65px 0 10px}.page-hero h1{font-size:clamp(42px,5vw,70px);line-height:1.08}.page-hero>p:not(.eyebrow){font-size:15px;max-width:680px;line-height:1.9}.page-hero .button{margin-top:15px}.page-hero.compact{padding-top:60px}.large{margin-top:30px}.large input{font-size:14px;padding:13px}.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0}.filter-row button,.filter-row>a{font-size:10px;background:transparent;color:#757b6b;border:1px solid #dedfd5;padding:7px 15px;border-radius:2px}.filter-row button[aria-pressed=true],.filter-row>a:hover{background:var(--ink);color:white;border-color:var(--ink)}.search-results{padding-top:20px;min-height:350px}.search-results>p{font-size:12px}.search-results>.button{margin-top:30px}.empty-state{grid-column:1/-1;padding:40px 0}.empty-state h2{font-size:28px}.empty-state p{font-size:14px}.empty-state a{text-decoration:underline}.pagination{display:flex;flex-wrap:wrap;gap:7px;margin-top:35px}.pagination a{font-size:11px;border:1px solid var(--line);padding:6px 12px;border-radius:2px}.pagination a[aria-current]{background:var(--ink);color:white}.prose{max-width:840px;margin:20px auto 85px;padding:0 35px;font-size:15px;line-height:1.95;color:var(--muted)}.prose .lead{font-size:21px;color:var(--ink);line-height:1.7}.prose h2{font-size:28px;color:var(--ink);margin-top:40px}.prose a{color:#806537;text-decoration:underline;text-underline-offset:4px}
/* The profile is a complete editorial experience, with its own opening chapter. */
.profile-hero{max-width:1600px;position:relative;margin:auto;background:#151d18;color:#f0ebe1;display:grid;grid-template-columns:1.3fr .9fr;gap:5%;padding:70px 7% 65px;isolation:isolate;overflow:hidden}.profile-hero:before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 80% 5%,#c1a67312 0,transparent 55%);z-index:-1}.profile-hero-copy{align-self:center;padding-bottom:35px}.profile-hero .eyebrow{color:#c1aa7e;font-size:8px;letter-spacing:.17em}.intro-line{height:1px;width:35px;background:var(--champagne);transform-origin:left;animation:intro-line 1s ease both}.profile-hero h1{font-family:var(--serif);font-size:clamp(48px,5.2vw,78px);font-weight:400;line-height:1.07;letter-spacing:-.055em;margin:30px 0 23px;animation:profile-intro .9s ease both}.profile-hero h1>span{color:#d9c29a;white-space:nowrap;font-size:.88em}.profile-tagline{color:#d5d7cb;font-size:19px;line-height:1.45;margin-bottom:22px;animation:profile-intro .9s .12s ease both}.profile-tagline em{font-size:1.12em}.profile-intro{color:#a8b5a6;font-size:12px;line-height:1.95;max-width:475px;animation:profile-intro .9s .2s ease both}.profile-hero-actions{display:flex;align-items:center;gap:28px;margin:28px 0 35px;animation:profile-intro .9s .27s ease both}.profile-hero .text-link{color:#e3dccb}.profile-origin{display:flex;gap:25px;flex-wrap:wrap;color:#889a87;font-size:6.5px;letter-spacing:.13em;border-top:1px solid #b3bfaa25;padding-top:22px;max-width:475px}.profile-portrait{margin:0;background:#f2f1eb;position:relative;align-self:center;overflow:hidden;box-shadow:0 0 0 1px #b9a17650,0 30px 70px #0002;animation:portrait-intro 1.2s ease both;max-width:450px;width:100%;justify-self:end}.profile-portrait:before{content:"";position:absolute;inset:12px;border:1px solid #99825b40;z-index:2;pointer-events:none}.profile-portrait>img{width:100%;height:580px;display:block;object-fit:cover;object-position:center 12%;mix-blend-mode:multiply}.profile-portrait figcaption{position:absolute;bottom:20px;left:25px;right:25px;display:flex;justify-content:space-between;font-size:7px;letter-spacing:.1em;color:#434b3c;border-top:1px solid #9fa08b60;padding-top:12px;background:linear-gradient(transparent,#f5f3ea80);font-weight:550}.profile-scroll{position:absolute;bottom:22px;left:7%;right:7%;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:6px;letter-spacing:.2em;color:#81937d}.profile-scroll>span:last-child{font-size:20px;line-height:1;color:#c5ae83}.profile-section-nav{max-width:1440px;margin:auto;display:flex;justify-content:space-between;padding:26px 0;border-bottom:1px solid var(--line);align-items:center;gap:20px}.profile-section-nav>span{font-size:7px;letter-spacing:.12em;color:#8b8e7c}.profile-section-nav>div{display:flex;gap:30px;font-size:10px}.profile-section-nav a:hover{color:var(--gold)}.profile-vision{display:grid;grid-template-columns:1fr 1.25fr;gap:10%;padding-top:80px;padding-bottom:85px}.profile-vision h2{font-size:48px}.profile-prose p{font-size:13px;line-height:2;color:#72786b;margin:0 0 20px}.profile-prose p.lead{font-size:23px;line-height:1.65;color:#313d2f;letter-spacing:-.025em;margin-bottom:25px}.mission-statement{max-width:1440px;margin:auto;padding:55px 50px;background:#eae6db;text-align:center}.mission-statement .eyebrow{justify-content:center;font-size:8px}.mission-statement h2{font-family:LabTamil,var(--font);font-size:clamp(22px,2.5vw,38px);line-height:1.7;letter-spacing:-.035em;font-weight:500;margin:18px 0}.mission-statement h2 span{color:#8a6e42}.mission-statement>p:last-child{font-size:10px;line-height:1.9;margin:17px 0 0;color:#858774}.values-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:45px;padding-top:12px}.values-grid article{border-top:1px solid #c8cdbf;padding-top:18px}.values-grid article>span{font-family:var(--serif);font-size:25px;color:#a58e66}.values-grid h3{font-size:26px;margin:26px 0 20px;line-height:1.2;font-weight:400}.values-grid p{font-size:12px;line-height:1.95}.profile-work{display:grid;grid-template-columns:.9fr 1.2fr;gap:11%;padding-top:35px}.profile-work>div>p:not(.eyebrow){max-width:350px;font-size:12px;line-height:1.95}.profile-work .text-link{margin-top:14px}.work-list>a{display:flex;gap:23px;align-items:start;border-top:1px solid var(--line);padding:24px 0}.work-list>a>span:first-child{font-size:9px;color:#9e8963;margin-top:8px}.work-list h3{font-size:24px;margin:0 0 9px;font-weight:450}.work-list p{font-size:11px;line-height:1.9;margin:0}.work-list>a>span:last-child{margin-left:auto;color:#8c774c;font-size:20px;line-height:1.2}.work-list>a:hover h3{color:#8c6b34}.profile-tamil{display:grid;grid-template-columns:.95fr 1.3fr;gap:10%;border-top:1px solid var(--line);padding-top:70px}.profile-tamil .eyebrow{letter-spacing:0;font-size:11px}.profile-tamil h2{font-family:LabTamil,var(--font);font-size:34px;line-height:1.6;letter-spacing:-.035em;font-weight:500}.profile-tamil h2 em{font-family:inherit;color:#8d754b;font-style:normal}.profile-tamil .tamil-lead{font-size:14px;line-height:2.2;color:#858372;max-width:400px}.profile-tamil .profile-prose p{font-size:12px;line-height:2.3;margin-bottom:24px}.profile-tamil .profile-prose h3{font-size:18px;line-height:1.8;letter-spacing:0;font-weight:500;margin-bottom:22px}.brand-signature{max-width:1440px;margin:0 auto 80px;border-top:1px solid var(--line);display:grid;grid-template-columns:.7fr 1.3fr;align-items:center;gap:60px;padding:55px 70px;background:#f2f0e8}.signature-logo{max-width:250px;mix-blend-mode:multiply;justify-self:center}.signature-logo img{display:block;width:100%;height:auto}.brand-signature h2{font-size:42px;margin:0 0 20px}.brand-signature p:not(.eyebrow){font-size:11px;line-height:1.9}.brand-signature .button{margin-top:14px}
@keyframes profile-intro{from{opacity:0;transform:translateY(17px)}to{opacity:1;transform:none}}@keyframes portrait-intro{from{opacity:0;transform:translateY(20px) scale(1.025)}to{opacity:1;transform:none}}@keyframes intro-line{from{transform:scaleX(0)}to{transform:scaleX(1)}}
@media(min-width:1601px){.founder-preview,.free-banner,.page-hero,.profile-section-nav,.mission-statement,.brand-signature{max-width:1440px}}
@media(max-width:1600px){.founder-preview,.free-banner,.page-hero,.profile-section-nav,.mission-statement,.brand-signature{margin-left:5%;margin-right:5%}}
@media(max-width:1100px){.topbar{gap:15px}.brand-type{font-size:14px}.brand-type small{font-size:6px}.topbar nav{gap:17px;font-size:10px}.nav-search{font-size:9px;padding:8px}.nav-search kbd{display:none}.hero{padding-top:50px;gap:4%}.hero h1{font-size:64px}.hero-description{font-size:12px}.hero-visual{min-height:430px;padding:22px}.hero-actions{gap:20px}.hero-actions .text-link{font-size:10px;gap:10px}.metric-strip strong{font-size:30px}.subject-card{padding:20px}.subject-art{height:170px}.subject-card h3{font-size:24px}.subject-bottom small{display:none}.founder-preview{grid-template-columns:.8fr 1.15fr;gap:7%;padding-right:6%}.founder-preview-image{height:520px}.founder-preview h2{font-size:38px}.section{padding-top:62px;padding-bottom:62px}.profile-hero{padding-left:6%;padding-right:6%;gap:4%}.profile-hero h1{font-size:63px}.profile-portrait>img{height:530px}.profile-hero-actions{gap:20px}.profile-hero-actions .text-link{font-size:10px}.profile-vision{gap:7%}.profile-vision h2{font-size:41px}.profile-tamil{gap:6%}.profile-tamil h2{font-size:28px}.profile-tamil .tamil-lead{font-size:12px}.values-grid{gap:28px}.values-grid h3{font-size:23px}.brand-signature{padding:45px;gap:40px}}
@media(max-width:860px){.topbar{flex-wrap:wrap;padding-top:17px;padding-bottom:16px}.topbar nav{order:3;justify-content:space-between;gap:16px;width:100%;padding-top:15px;margin-top:5px;border-top:1px solid var(--line);font-size:11px}.brand-type{font-size:16px}.brand-type small{font-size:6.5px}.nav-search{margin-left:auto;font-size:10px}.hero h1{font-size:53px}.hero-visual{min-height:400px;padding:20px}.visual-bottom h2{font-size:22px}.visual-label{font-size:5px}.hero-copy{padding-top:0}.hero .eyebrow{font-size:7px}.hero-actions{flex-direction:column;align-items:start;gap:15px;margin-bottom:24px}.hero-tamil{font-size:9px}.hero-tags{font-size:6px;gap:12px}.hero-tags span+span:before{margin-right:12px}.hero-footnote{margin-top:2px}.metric-strip>div{padding:0 20px}.metric-strip strong{font-size:26px}.metric-strip span{font-size:8px}.subject-grid{gap:15px}.subject-card{padding:17px}.subject-art{height:145px}.subject-top{font-size:6px}.subject-card h3{font-size:22px}.subject-card p{font-size:10px}.subject-bottom{font-size:8px}.founder-preview h2{font-size:32px}.founder-preview-copy>p:not(.eyebrow):not(.founder-name){font-size:10px}.founder-preview-image{height:475px}.founder-preview-copy .tamil-copy{font-size:9px!important}.founder-preview .eyebrow{font-size:6px}.discovery-section{gap:7%}.discovery-note{padding-left:35px}.discovery-note>span{font-size:60px}.lesson-grid{gap:14px}.lesson-card{padding:20px}.lesson-card h3{font-size:19px}.lesson-subject{font-size:7px}.lesson-subject small{font-size:6px}.free-banner{padding:40px}.free-banner h2{font-size:36px}.site-footer{grid-template-columns:1.5fr 1fr 1fr;gap:25px}.footer-logo{display:none}.profile-hero{padding-top:50px;padding-bottom:65px;grid-template-columns:1.05fr .9fr}.profile-hero h1{font-size:53px}.profile-tagline{font-size:17px}.profile-intro{font-size:11px}.profile-hero .eyebrow{font-size:6px}.profile-portrait>img{height:490px}.profile-hero-actions{flex-direction:column;align-items:start;gap:18px}.profile-origin{font-size:5px;gap:13px}.profile-vision{grid-template-columns:1fr 1.2fr;gap:7%}.profile-vision h2{font-size:36px}.profile-prose p{font-size:12px}.profile-prose p.lead{font-size:20px}.values-grid{gap:24px}.values-grid h3{font-size:21px}.values-grid p{font-size:11px}.profile-work{gap:7%}.profile-work h2{font-size:36px}.profile-tamil{grid-template-columns:1fr;gap:20px}.profile-tamil .tamil-lead{max-width:650px;font-size:14px}.profile-tamil h2{font-size:34px}.profile-tamil .profile-prose p{font-size:13px}.profile-section-nav>span{display:none}.profile-section-nav>div{width:100%;justify-content:space-between;gap:15px}.brand-signature{padding:35px;gap:25px}.brand-signature h2{font-size:36px}}
@media(max-width:640px){body{font-size:15px}.topbar{padding-left:5%;padding-right:5%;row-gap:12px}.brand{gap:8px}.brand-emblem{width:36px;height:36px}.brand-emblem img{width:76px;height:76px;left:-19px;top:-13px}.brand-type{font-size:14px}.brand-type small{font-size:5.5px;letter-spacing:.1em}.nav-search{padding:6px 8px;gap:7px;font-size:8px}.nav-search>span:first-child{font-size:19px}.topbar nav{font-size:9px;padding-top:13px;gap:8px;margin-top:0}.founder-nav:after{height:3px;width:3px;margin-left:4px}.hero{grid-template-columns:1fr;gap:35px;padding-top:36px}.hero .eyebrow{font-size:8px}.hero h1{font-size:clamp(47px,12vw,70px);margin:22px 0;line-height:1.06}.hero-description{font-size:13px;line-height:1.95;max-width:550px}.hero-actions{flex-direction:row;align-items:center;gap:21px;margin-bottom:26px}.hero-actions .button{font-size:10px;padding:13px 17px;gap:18px}.hero-actions .text-link{font-size:9px;gap:10px}.hero-tamil{font-size:10px;line-height:2;margin-bottom:21px}.hero-tags{font-size:7px;gap:15px}.hero-tags span+span:before{margin-right:15px}.hero-visual{min-height:0;padding:22px 23px}.science-visual{margin-top:10px}.visual-top{font-size:7px}.visual-bottom{padding-top:18px}.visual-bottom h2{font-size:29px}.visual-label{font-size:6px}.hero-footnote{padding:0 0 22px;margin-top:-9px;font-size:7px;align-items:center;gap:12px}.hero-footnote>span:last-child{font-size:5px;flex-shrink:0}.hero-footnote>span:last-child>span{font-size:12px;margin-left:8px}.metric-strip{grid-template-columns:1fr 1fr;row-gap:25px;padding-top:28px;padding-bottom:28px}.metric-strip>div{padding:0 20px!important}.metric-strip>div:nth-child(odd){padding-left:0!important}.metric-strip>div:nth-child(even){border:0}.metric-strip strong{font-size:30px}.metric-strip span{font-size:8px}.section{padding-top:48px;padding-bottom:48px}.section-heading{display:block;margin-bottom:27px}.section-heading .eyebrow{font-size:8px;margin-bottom:15px}.section-heading h2{font-size:36px}.section-heading>p{margin-top:20px;font-size:11px}.section-heading>.text-link{margin-top:20px}.subject-grid,.lesson-grid,.two-grid{grid-template-columns:1fr;gap:18px}.subject-card{padding:24px}.subject-art{height:210px;margin:15px -3px}.subject-top{font-size:8px}.subject-card h3{font-size:29px;line-height:1.1}.subject-card p{font-size:12px}.subject-bottom{font-size:11px;padding-top:20px}.subject-bottom small{display:block;font-size:9px}.subject-card .anatomy-art{margin-left:-24px;margin-right:-24px}.founder-preview{grid-template-columns:1fr;padding:0;gap:0}.founder-preview-image{height:400px}.founder-preview-image img{object-position:center 17%;width:100%}.founder-preview-copy{padding:34px 26px 39px}.founder-preview .eyebrow{font-size:7px}.founder-preview h2{font-size:37px;max-width:450px}.founder-name{font-size:12px}.founder-preview-copy>p:not(.eyebrow):not(.founder-name){font-size:12px;max-width:none}.founder-preview-copy .tamil-copy{font-size:11px!important;line-height:2.1!important;margin-top:20px}.chapter-number{font-size:240px}.discovery-section{grid-template-columns:1fr;gap:35px}.discovery-section h2{font-size:38px}.discovery-section>div>p:not(.eyebrow){font-size:12px}.search-form input{font-size:11px;padding-left:6px}.search-form button{width:40px;height:40px}.search-hint{font-size:8px!important}.discovery-note{padding:28px 0 0;border:0;border-top:1px solid var(--line);display:grid;grid-template-columns:.8fr 1fr;column-gap:25px;align-items:center}.discovery-note>span{font-size:55px;margin-bottom:0}.discovery-note h3{font-size:27px;margin:0}.discovery-note p{font-size:11px;margin:24px 0 0}.discovery-note>a{font-size:9px;line-height:1.8;margin-top:24px;gap:15px}.selected-lessons{padding-top:12px}.lesson-card{padding:26px;min-height:245px}.lesson-subject{font-size:9px}.lesson-subject small{font-size:8px}.lesson-card h3{font-size:23px;margin-top:22px}.lesson-card p{font-size:12px}.card-link{font-size:10px}.free-banner{display:block;padding:35px 25px;margin-bottom:48px}.free-banner h2{font-size:37px}.free-banner p{font-size:11px}.free-banner>.button{margin-top:25px}.free-banner .eyebrow{font-size:7px}.site-footer{grid-template-columns:1fr 1fr;gap:28px;padding-bottom:22px}.footer-identity{grid-column:1/-1}.footer-brand{font-size:17px}.footer-brand span{font-size:6px}.site-footer p{font-size:12px}.site-footer>div>strong{font-size:9px}.site-footer>div>a:not(.footer-brand){font-size:11px}.footer-founder{font-size:11px!important}.footer-bottom{margin-top:13px;display:block;font-size:8px;line-height:2}.footer-bottom>span{display:block}.footer-bottom>span:last-child{font-size:5.5px;margin-top:8px}.page-hero{padding-top:38px}.page-hero.compact{padding-top:38px}.page-hero h1{font-size:43px}.page-hero>p:not(.eyebrow){font-size:13px}.large input{font-size:12px}.filter-row button,.filter-row>a{font-size:10px;padding:6px 11px}.search-results{padding-top:16px}.prose{padding:0 6%;font-size:14px}.prose .lead{font-size:20px}.prose h2{font-size:27px}.profile-hero{grid-template-columns:1fr;padding:38px 6% 65px;gap:35px}.profile-hero-copy{padding-bottom:0}.profile-hero .eyebrow{font-size:7px;margin-bottom:20px}.profile-hero h1{font-size:clamp(41px,10.7vw,64px);margin:25px 0;line-height:1.1}.profile-hero h1>span{font-size:.88em;white-space:normal}.profile-tagline{font-size:19px;line-height:1.5}.profile-intro{font-size:12px;line-height:1.95}.profile-hero-actions{flex-direction:row;align-items:center;gap:22px;margin-bottom:26px}.profile-hero-actions .button{font-size:10px;padding:13px 16px;gap:17px}.profile-hero-actions .text-link{font-size:9px;gap:10px}.profile-origin{font-size:6px;gap:16px;padding-top:19px}.profile-portrait{max-width:420px;width:100%;justify-self:center}.profile-portrait>img{height:500px;object-position:center 14%}.profile-portrait figcaption{font-size:6px}.profile-scroll{left:6%;right:6%;bottom:20px}.profile-section-nav{padding:20px 0}.profile-section-nav>div{font-size:10px;gap:12px}.profile-vision{grid-template-columns:1fr;gap:24px;padding-top:47px;padding-bottom:38px}.profile-vision h2{font-size:39px;margin-bottom:0}.profile-prose p{font-size:13px;line-height:2}.profile-prose p.lead{font-size:22px;line-height:1.6}.mission-statement{padding:35px 21px}.mission-statement .eyebrow{font-size:6px;letter-spacing:.1em}.mission-statement h2{font-size:clamp(18px,5vw,26px);line-height:1.9;letter-spacing:-.045em;margin:22px 0}.mission-statement>p:last-child{font-size:9px}.profile-student-section .section-heading h2{font-size:38px}.values-grid{grid-template-columns:1fr;gap:27px;padding-top:8px}.values-grid article{position:relative;padding-left:45px;padding-top:22px}.values-grid article>span{position:absolute;left:0;top:21px;font-size:24px}.values-grid h3{font-size:27px;margin:0 0 16px;line-height:1.2}.values-grid h3 br{display:none}.values-grid p{font-size:12px;margin-bottom:0}.profile-work{grid-template-columns:1fr;gap:30px;padding-top:8px}.profile-work h2{font-size:39px}.profile-work>div>p:not(.eyebrow){max-width:none;font-size:13px}.work-list>a{gap:16px;padding:23px 0}.work-list h3{font-size:25px}.work-list p{font-size:11px}.profile-tamil{padding-top:40px;gap:18px}.profile-tamil .eyebrow{font-size:10px}.profile-tamil h2{font-size:29px;line-height:1.6}.profile-tamil .tamil-lead{font-size:13px;line-height:2.3}.profile-tamil .profile-prose p{font-size:12px;line-height:2.35}.profile-tamil .profile-prose h3{font-size:17px;line-height:1.9;margin-bottom:17px}.brand-signature{grid-template-columns:1fr;gap:20px;padding:30px 25px 38px;margin-bottom:45px}.signature-logo{max-width:180px}.brand-signature h2{font-size:38px}.brand-signature p:not(.eyebrow){font-size:12px}.brand-signature .eyebrow{font-size:8px}}
@media(max-width:370px){.nav-search>span:nth-child(2){font-size:0}.nav-search>span:nth-child(2):after{content:"Search";font-size:9px}.hero h1{font-size:45px}.hero-actions{gap:15px}.hero-actions .text-link{font-size:8px}.subject-bottom small{font-size:8px}.profile-hero-actions{gap:16px}.profile-origin{font-size:5px}.profile-portrait>img{height:430px}.mission-statement h2{font-size:18px}}
.profile-source-note{font-size:9px!important;color:#8d907f!important}.profile-source-note a{text-decoration:underline;text-underline-offset:3px}
.profile-tamil>div{min-width:0}
.founder-preview-image img,.profile-portrait>img{width:125%;max-width:none;transform:translateX(-10%);object-position:center top}
@media(max-width:360px){.profile-tamil h2{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.profile-hero h1,.profile-tagline,.profile-intro,.profile-hero-actions,.profile-portrait{opacity:1;transform:none}}

/* Topic discovery and the shared library browser. */
.topic-shortcuts{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}.topic-shortcuts a{font-size:10px;padding:7px 12px;border:1px solid var(--line);border-radius:3px;color:var(--ink);transition:background .15s}.topic-shortcuts a:hover{background:#eae6db}
.resource-filters{display:grid;grid-template-columns:repeat(4,minmax(0,1fr)) auto;gap:15px;align-items:end;max-width:1100px;margin-top:24px}.resource-filters label{display:flex;flex-direction:column;gap:7px;font-size:11px;color:var(--muted);letter-spacing:.02em}.resource-filters select{font:inherit;font-size:12px;color:var(--ink);width:100%;min-width:0;padding:12px 30px 12px 11px;background:var(--paper);border:1px solid #d5d5cc;border-radius:3px;min-height:46px}.resource-filters select:focus-visible{outline:2px solid var(--gold);outline-offset:3px}.reset-filters{border:0;background:transparent;text-decoration:underline;text-underline-offset:4px;color:var(--gold);font-size:11px;padding:12px 0;min-height:46px}.page-hero>p.filter-explanation{font-size:11px;line-height:1.8;max-width:780px;margin-top:18px;color:var(--muted)}.library-subjects{padding-top:30px}
@media(max-width:900px){.resource-filters{grid-template-columns:repeat(2,minmax(0,1fr))}.reset-filters{justify-self:start;min-height:36px;padding:5px 0}}
@media(max-width:640px){.resource-filters{gap:15px 12px;margin-top:20px}.resource-filters label{font-size:10px}.resource-filters select{font-size:11px;padding-left:8px;padding-right:20px}.page-hero>p.filter-explanation{font-size:10px}.topic-shortcuts{gap:8px}.topic-shortcuts a{font-size:9px;padding:7px 10px}}

.chemistry-filter{display:flex;align-items:end;gap:20px;margin-top:18px;max-width:800px}.chemistry-filter label{font-size:11px;color:var(--muted);display:flex;flex-direction:column;gap:7px;min-width:220px}.chemistry-filter select{font:inherit;font-size:12px;border:1px solid #d5d5cc;background:var(--paper);color:var(--ink);padding:12px;min-height:46px;border-radius:3px}.chemistry-filter p{font-size:10px;line-height:1.8;margin-bottom:8px}.chemistry-path-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.chemistry-path-grid>a{display:flex;flex-direction:column;padding:28px;border:1px solid var(--line);background:#f0eee6;transition:background .15s}.chemistry-path-grid>a:hover{background:#e8e4d8}.chemistry-path-grid>a>span{font-size:10px;color:var(--gold);margin-bottom:30px}.chemistry-path-grid h3{font-size:27px;line-height:1.2}.chemistry-path-grid p{font-size:12px;flex:1}.chemistry-path-grid b{font-size:10px;font-weight:500;margin-top:18px}
@media(max-width:900px){.chemistry-path-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.chemistry-filter{display:block}.chemistry-filter label{width:100%;min-width:0}.chemistry-filter p{margin-top:10px}.chemistry-path-grid{gap:12px}.chemistry-path-grid>a{padding:20px}.chemistry-path-grid h3{font-size:21px}.chemistry-path-grid p{font-size:11px}.chemistry-path-grid>a>span{margin-bottom:20px}}

.filter-control{display:flex;flex-direction:column;gap:7px;min-width:0}.chemistry-filter .filter-control{min-width:220px}@media(max-width:640px){.chemistry-filter .filter-control{min-width:0;width:100%}}