:root{color-scheme:dark;--bg:#0c131b;--panel:#172337;--line:#34465b;--gold:#edcc87;--text:#eef2f7;--muted:#b6c5d8;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 80% 0,#173143 0,transparent 55%),var(--bg)}a{color:var(--gold);text-underline-offset:4px}a:hover{color:#fff}a:focus-visible,summary:focus-visible{outline:3px solid #75dbe0;outline-offset:5px}header,main,footer{max-width:1160px;margin:auto;padding:24px 30px}header{display:flex;justify-content:space-between;gap:24px;align-items:center;border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:800;text-decoration:none;color:var(--text)}nav{display:flex;flex-wrap:wrap;gap:20px;font-size:14px}.breadcrumb{font-size:13px;margin:10px 0 30px;color:var(--muted)}.hero{padding:24px 0 34px;max-width:840px}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--gold);font-weight:700}h1{font-size:clamp(32px,5vw,52px);letter-spacing:-1.5px;line-height:1.15;margin:14px 0 20px}h2{font-size:clamp(21px,3vw,27px);letter-spacing:-.4px;line-height:1.3;margin:0 0 13px}p,li{line-height:1.8;color:var(--muted)}.intro{font-size:18px}.button{display:inline-block;background:linear-gradient(135deg,#f2d99e,#c9a459);color:#14202e;border:1px solid #f6dfab;border-radius:12px;padding:13px 22px;text-decoration:none;font-weight:750}.button:hover{color:#14202e;filter:brightness(1.1)}.layout{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:36px;align-items:start}.article-section{margin-bottom:30px;scroll-margin-top:20px}.article-section p{margin:0}.contents{border:1px solid var(--line);border-radius:16px;background:#172337b8;padding:20px;font-size:14px}.contents h2{font-size:16px}.contents ol{padding-left:18px;margin-bottom:0}.contents li{margin-bottom:9px;line-height:1.5}.examples{display:grid;gap:12px}.example{padding:18px 22px;background:linear-gradient(130deg,#223149,#14202f);border:1px solid var(--line);border-radius:13px}.example strong{font-size:13px;color:var(--gold)}.example p{margin:5px 0 0;color:var(--text)}.practice{padding:24px;border:1px solid #597a7c;border-radius:18px;background:#193238;margin:30px 0}.practice p{margin:12px 0}.practice details{border-top:1px solid #3c595d;padding-top:16px}.practice summary{cursor:pointer;color:var(--gold);font-weight:700}.related{border-top:1px solid var(--line);padding-top:30px;margin-top:36px}.links{display:flex;flex-wrap:wrap;gap:12px}.links a{padding:10px 14px;border:1px solid var(--line);border-radius:10px;text-decoration:none;background:var(--panel);font-size:14px}.cta{margin-top:30px;padding:28px;background:linear-gradient(120deg,#253b47,#1a2538);border-radius:18px;border:1px solid #5c6263}.cta h2{color:var(--gold)}footer{border-top:1px solid var(--line);margin-top:40px;display:flex;flex-wrap:wrap;gap:20px;font-size:13px}footer span{color:var(--muted)}@media(max-width:780px){.layout{grid-template-columns:1fr}.contents{grid-row:1}header,main,footer{padding:20px}.hero{padding-top:12px}header{align-items:flex-start}.brand{font-size:20px}nav{gap:12px;font-size:13px}.intro{font-size:16px}.cta{padding:22px}}

.skip-link{position:absolute;left:16px;top:-100px;z-index:1000;background:#edcc87;color:#101929;padding:12px;border-radius:8px}.skip-link:focus{top:12px}.public-learning-links{display:flex;gap:10px 16px;flex-wrap:wrap;font-size:14px;margin-top:20px}.public-learning-links a{color:#edcc87}.account-welcome h1{font-size:clamp(30px,3.3vw,49px);line-height:1.13;letter-spacing:-1.3px;margin:18px 0;color:#eef3fa}.account-box h2{font-size:28px;letter-spacing:-.8px;margin:12px 0 8px;color:inherit}@media(max-width:900px){.account-welcome h1{font-size:29px}}