:root{--paper:#f4f3eb;--ink:#1c2937;--muted:#5b665f;--lime:#d5f45b;--line:#cfd3c7;--soft:#e9ecdf;--white:#fbfbf5;--max:1280px;color-scheme:light}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit}button,a,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,summary:focus-visible{outline:3px solid var(--ink);outline-offset:6px}::selection{background:var(--lime);color:var(--ink)}.shell{width:min(var(--max),calc(100% - 96px));margin-inline:auto}.skip-link{position:absolute;z-index:10;left:24px;top:16px;transform:translateY(-150%);background:var(--ink);color:var(--paper);padding:14px 20px}.skip-link:focus{transform:translateY(0)}
.site-header{min-height:112px;display:flex;align-items:center;justify-content:space-between;gap:30px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:21px;text-decoration:none;white-space:nowrap}.wordmark{font-weight:800;font-size:27px;letter-spacing:-1.5px;text-decoration:none}.brand-dot{color:#5d7824}.brand-divider{height:24px;width:1px;background:#b8c0b2}.course-name{font-size:11px;text-transform:uppercase;letter-spacing:2px;font-weight:700}.site-header nav{display:flex;gap:33px;margin-left:auto;margin-right:19px}.site-header nav a{font-size:13px;text-decoration:none;padding-block:10px}.site-header nav a:hover{text-decoration:underline;text-underline-offset:6px}.preview-badge{font-size:9px;letter-spacing:1.3px;text-transform:uppercase;display:flex;align-items:center;gap:7px;white-space:nowrap;border:1px solid #bac3ae;border-radius:20px;padding:9px 12px}.preview-badge>span{height:5px;width:5px;border-radius:50%;background:#63832d}
.hero{display:grid;grid-template-columns:1.13fr 1fr;gap:32px;align-items:center;padding-block:74px 66px}.hero-copy{padding-bottom:7px}.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:1.8px;font-weight:700;margin:0 0 27px;line-height:1.5}.hero .eyebrow{display:flex;align-items:center;gap:12px}.short-rule{width:29px;height:2px;background:var(--ink)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(48px,5.2vw,73px);line-height:1.02;letter-spacing:-4.6px;font-weight:700;margin-bottom:27px}h1>span{display:block;white-space:nowrap}.title-dot{color:#75943c}.hero-intro{font-size:17px;line-height:1.65;max-width:480px;margin-bottom:13px}.hero-support{color:var(--muted);font-size:14px;line-height:1.7;max-width:445px;margin-bottom:29px}.button{display:inline-flex;align-items:center;justify-content:space-between;gap:45px;background:var(--ink);color:var(--white);font-size:13px;font-weight:700;padding:18px 22px;text-decoration:none;transition:background .2s,transform .2s}.button>span{font-size:22px;line-height:16px;color:var(--lime)}.button:hover{background:#344137;transform:translateY(-2px)}.course-facts{display:flex;align-items:center;gap:14px;margin-top:39px;font-size:11px;color:var(--muted)}.course-facts>span{white-space:nowrap}.course-facts strong{font-size:17px;color:var(--ink);margin-right:4px;font-weight:600}.fact-divider{height:19px;width:1px;background:var(--line)}.fact-note{margin-left:7px;font-size:10px}.hero-art{margin:0;align-self:center}.hero-art svg{width:100%;height:auto;display:block}.hero-art figcaption{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:14px;margin:0 24px}.art-label{font-size:10px;color:var(--muted)}.art-number{font-size:8px;letter-spacing:1.2px}
.course-section{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft);padding-block:76px 81px}.course-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:100px}.section-intro{padding-top:4px}.section-intro .eyebrow{margin-bottom:21px}h2{font-size:38px;line-height:1.13;letter-spacing:-1.6px;font-weight:600;margin-bottom:22px}.section-intro>p:not(.eyebrow){color:var(--muted);font-size:14px;line-height:1.75;max-width:330px}.section-intro .interaction-hint{font-size:11px!important;margin-top:28px;display:flex;gap:10px;align-items:baseline}.interaction-hint>span{font-size:21px;color:var(--ink)}.strands{border-top:1px solid #b8c0ae}.strand{border-bottom:1px solid #b8c0ae}.strand summary{display:flex;align-items:center;gap:22px;padding:25px 7px 24px 0;cursor:pointer;list-style:none}.strand summary::-webkit-details-marker{display:none}.strand-number{font-size:11px;align-self:flex-start;padding-top:4px;color:var(--muted);font-variant-numeric:tabular-nums;flex:0 0 22px}.strand-heading{display:flex;flex-direction:column;gap:9px;min-width:0}.strand-heading>span{font-size:20px;line-height:1.2;font-weight:500;letter-spacing:-.45px}.strand-heading>small{color:var(--muted);font-size:11px;line-height:1.4}.strand-toggle{width:26px;height:26px;border:1px solid #adb7a0;border-radius:50%;position:relative;margin-left:auto;flex-shrink:0}.strand-toggle::before,.strand-toggle::after{content:"";position:absolute;left:7px;top:11px;width:10px;height:1px;background:var(--ink)}.strand-toggle::after{transform:rotate(90deg)}.strand[open] .strand-toggle{background:var(--lime);border-color:var(--ink)}.strand[open] .strand-toggle::after{transform:rotate(0)}.strand summary:hover .strand-heading>span{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}.strand-content{padding:0 43px 25px 44px;font-size:13px;line-height:1.7;color:var(--muted)}.strand-content>p{margin-bottom:20px}.standards{list-style:none;margin:0;padding:0;display:grid;gap:16px}.standards li{display:grid;gap:3px}.standards strong{font-size:9px;text-transform:uppercase;letter-spacing:1.2px;color:var(--ink)}
.approach-section{padding-block:76px 80px}.approach-header{display:flex;justify-content:space-between;align-items:flex-end;gap:50px;margin-bottom:38px}.approach-header .eyebrow{margin-bottom:17px}.approach-header h2{margin-bottom:0}.approach-header>p{max-width:275px;color:var(--muted);font-size:13px;line-height:1.7;margin-bottom:2px}.study-steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.study-steps li{border-top:1px solid var(--ink);padding-top:19px}.step-number{font-size:10px;letter-spacing:1px;color:var(--muted)}.study-steps h3{font-size:27px;letter-spacing:-.7px;font-weight:500;margin-block:22px 14px;display:flex;align-items:center;justify-content:space-between}.study-steps h3>span{font-size:23px;line-height:1;background:var(--lime);width:36px;height:36px;border-radius:50%;display:flex;justify-content:center;align-items:center;margin-right:9px}.study-steps p{max-width:300px;font-size:13px;color:var(--muted);line-height:1.75;margin-bottom:0}.site-footer{border-top:1px solid var(--line);padding-block:29px 33px;display:flex;align-items:center;justify-content:space-between;gap:24px}.site-footer>div{display:flex;align-items:center;gap:26px}.site-footer .wordmark{font-size:23px}.footer-course{color:var(--muted);font-size:10px}.site-footer>p{font-size:9px;line-height:1.7;color:var(--muted);text-align:right;margin-bottom:0}
@media(min-width:1500px){h1{font-size:76px}}
@media(max-width:1150px){.shell{width:calc(100% - 64px)}.site-header nav{gap:22px;margin-right:0}.hero{gap:10px;padding-block:64px 62px}h1{font-size:clamp(46px,5.2vw,64px);letter-spacing:-3.3px}.hero-intro{font-size:15px;max-width:420px}.hero-support{max-width:360px;font-size:13px}.fact-note{display:none}.course-layout{gap:55px;grid-template-columns:.72fr 1.28fr}.strand-heading>span{font-size:18px}h2{font-size:33px}.art-number{display:none}.brand{gap:15px}.wordmark{font-size:25px}.preview-badge{font-size:8px;padding:8px 9px}}
@media(max-width:850px){.site-header{min-height:95px;flex-wrap:wrap;gap:0;padding-block:22px 16px}.site-header nav{order:3;width:100%;margin-top:19px;gap:25px}.site-header nav a{font-size:12px;padding:0}.hero{grid-template-columns:1fr 1fr;gap:0;padding-block:54px}.hero-art{margin-left:-15px;margin-right:-20px}h1{font-size:clamp(35px,5.2vw,46px);letter-spacing:-2.4px}.hero .eyebrow{font-size:8px;letter-spacing:1.1px;gap:8px}.short-rule{width:20px}.hero-intro{font-size:14px}.hero-support{font-size:12px}.button{font-size:12px;padding:16px 18px;gap:28px}.course-facts{margin-top:28px;font-size:10px}.hero-art figcaption{margin-inline:35px 15px}.art-label{font-size:8px}.course-layout{grid-template-columns:1fr;gap:25px}.section-intro>p:not(.eyebrow){max-width:570px}.section-intro h2 br{display:none}.section-intro .interaction-hint{margin-top:15px;margin-bottom:0}.course-section{padding-block:53px 58px}.strand summary{padding-block:23px}.approach-section{padding-block:54px 57px}.approach-header{gap:25px;align-items:flex-start;flex-direction:column;margin-bottom:30px}.approach-header>p{max-width:none}.study-steps{gap:24px}.study-steps h3{font-size:25px}.study-steps p{font-size:12px}.study-steps h3>span{width:28px;height:28px;font-size:18px;margin-right:0}.footer-course{display:none}}
@media(max-width:600px){.shell{width:calc(100% - 40px)}.site-header{padding-top:23px;min-height:100px}.wordmark{font-size:24px}.brand{gap:12px}.brand-divider{height:20px}.course-name{font-size:9px;letter-spacing:1.5px}.preview-badge{font-size:7px;letter-spacing:.8px;padding:7px 8px}.preview-badge>span{width:4px;height:4px}.hero{grid-template-columns:1fr;padding-block:40px 37px;gap:21px}.hero .eyebrow{font-size:9px;letter-spacing:1.5px;margin-bottom:22px}h1{font-size:clamp(34px,9.6vw,56px);letter-spacing:-2.3px;line-height:1.06;margin-bottom:22px}.hero-intro{font-size:15px;max-width:450px;line-height:1.7}.hero-support{font-size:13px;max-width:420px;margin-bottom:24px}.button{font-size:12px;gap:43px;padding:17px 20px}.course-facts{margin-top:28px;gap:13px;font-size:10px}.fact-note{display:inline;font-size:9px;margin-left:0}.hero-art{max-width:470px;width:100%;margin:0 auto}.hero-art svg{margin-top:-4px}.hero-art figcaption{margin:0 15px;padding-top:12px}.art-label{font-size:9px}.art-number{display:inline;font-size:7px}.course-section{padding-block:42px 45px}.section-intro .eyebrow{font-size:9px;margin-bottom:17px}h2{font-size:31px;letter-spacing:-1.4px}.section-intro>p:not(.eyebrow){font-size:13px}.course-layout{gap:24px}.strand summary{gap:12px;padding:22px 1px 22px 0}.strand-number{font-size:10px;flex-basis:19px;padding-top:3px}.strand-heading>span{font-size:17px;letter-spacing:-.4px}.strand-heading>small{font-size:10px;line-height:1.5;max-width:240px}.strand-toggle{width:24px;height:24px}.strand-toggle::before,.strand-toggle::after{left:6px;top:10px}.strand-content{padding:0 6px 23px 31px;font-size:12px}.standards{gap:14px}.approach-section{padding-block:43px 45px}.approach-header .eyebrow{font-size:9px}.approach-header{gap:17px;margin-bottom:27px}.study-steps{grid-template-columns:1fr;gap:26px}.study-steps li{padding-top:16px;display:grid;grid-template-columns:50px 1fr;column-gap:8px}.step-number{grid-column:1;grid-row:1;padding-top:11px}.study-steps h3{grid-column:2;margin:0 0 10px;font-size:26px;align-items:center}.study-steps p{grid-column:2;font-size:13px;max-width:330px}.study-steps h3>span{width:31px;height:31px;font-size:20px}.site-footer{align-items:flex-start;padding-block:25px;gap:15px}.site-footer .wordmark{font-size:22px}.site-footer>p{font-size:8px;max-width:195px}.site-footer>div{gap:0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.button:hover{transform:none}}