:root{--ink:#1e2522;--muted:#58615c;--line:#c7cfca;--paper:#eef1ef;--white:#fcfdfc;--green:#174b3a;--blue:#27577a;--reading-size:18px;--ui-size:13px;--touch-size:44px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-size:var(--reading-size);font-family:Arial,Helvetica,sans-serif;line-height:1.65}a{color:inherit}
nav{min-height:66px;padding:10px clamp(18px,5vw,70px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:24px}.brand img{display:block;width:116px}nav>div{display:flex;align-items:center;justify-content:flex-end;gap:18px;flex-wrap:wrap}nav>div>a{display:inline-flex;align-items:center;min-height:var(--touch-size);font-size:var(--ui-size);font-weight:800;text-decoration:none}.locale-switch{display:flex;border:1px solid var(--ink)}.locale-switch a{display:inline-flex;align-items:center;min-height:var(--touch-size);padding:7px 12px;font-size:var(--ui-size);font-weight:800;text-decoration:none}.locale-switch a[aria-current="page"]{background:var(--ink);color:#fff}
.hero{padding:clamp(62px,9vw,112px) clamp(20px,8vw,118px);border-bottom:1px solid var(--line);background:linear-gradient(132deg,var(--paper) 0 72%,#d9e2dd 72%)}.hero>span,.section-heading>span,.learning-contract>span{color:var(--green);font-size:12px;font-weight:900;letter-spacing:.16em}.hero h1{max-width:1080px;margin:18px 0 22px;font:clamp(2.8rem,6.3vw,6.7rem)/.94 Georgia,"Times New Roman",serif;letter-spacing:-.052em}.hero>p{max-width:810px;margin:0;color:var(--muted);font:var(--reading-size)/1.75 Georgia,"Times New Roman",serif}.hero .status{margin-top:24px;padding:16px 18px;border-left:4px solid var(--blue);background:rgba(255,255,255,.55);font-size:16px}
main>section{width:min(1220px,calc(100% - 40px));margin:auto;padding:78px 0;border-bottom:1px solid var(--line);scroll-margin-top:20px}.section-heading{display:grid;grid-template-columns:180px minmax(0,1fr);gap:24px;margin-bottom:38px}.section-heading h2,.learning-contract h2{max-width:940px;margin:0 0 12px;font:clamp(2.2rem,4.8vw,4.6rem)/1 Georgia,"Times New Roman",serif;letter-spacing:-.04em}.section-heading p{max-width:810px;margin:0;color:var(--muted);font:var(--reading-size)/1.75 Georgia,"Times New Roman",serif}
.course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line)}.course-card{display:grid;grid-template-columns:58px 1fr;gap:16px;padding:27px;background:var(--white)}.course-card>span{color:var(--green);font:700 12px/1.5 ui-monospace,SFMono-Regular,Menlo,monospace}.course-card small{display:block;margin-bottom:9px;color:#6b625d;font-size:12px;font-weight:900;letter-spacing:.08em}.course-card h3{margin:0 0 9px;font:1.55rem/1.1 Georgia,"Times New Roman",serif}.course-card p{margin:0;color:var(--muted);font:16px/1.68 Georgia,"Times New Roman",serif}.course-card dl{display:grid;grid-template-columns:100px 1fr;gap:6px 12px;margin:17px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:13px;line-height:1.5}.course-card dt{font-weight:900;text-transform:uppercase}.course-card dd{margin:0;color:var(--muted)}
.principles{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line)}.principles article{padding:24px;background:var(--white)}.principles b{color:var(--blue);font-size:12px}.principles h3{margin:28px 0 10px;font:1.2rem Georgia,serif}.principles p{margin:0;color:var(--muted);font-size:16px;line-height:1.65}
.learning-contract{padding:68px!important;background:var(--green);color:#fff}.learning-contract>span{color:#bcd7cd}.learning-contract h2{margin-top:14px}.learning-contract ol{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;margin:30px 0 0;padding:0;background:#668276;list-style:none;counter-reset:contract}.learning-contract li{padding:22px;background:var(--green);font:16px/1.68 Georgia,serif;counter-increment:contract}.learning-contract li::before{content:"0" counter(contract);display:block;margin-bottom:22px;color:#bcd7cd;font:700 12px Arial,sans-serif}
footer{padding:30px clamp(20px,5vw,70px);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;color:var(--muted);font-size:var(--ui-size)}footer img{display:block;width:100px}footer p{margin:0}footer span{text-align:right}
@media(max-width:900px){.principles,.learning-contract ol{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){nav{align-items:flex-start}nav>div>a{display:none}.hero{background:var(--paper)}.section-heading{grid-template-columns:1fr;gap:10px}.course-grid,.principles,.learning-contract ol{grid-template-columns:1fr}.learning-contract{padding:48px 20px!important}footer{grid-template-columns:1fr}footer span{text-align:left}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}