:root{color-scheme:dark;--bg:#0d1117;--panel:#151d27;--text:#f1f5fa;--muted:#b1bfce;--accent:#55c7ff;--line:#2a3847;font-family:Arial,Helvetica,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);line-height:1.7}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#fff}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}header,main,footer{width:min(1080px,calc(100% - 48px));margin:auto}header{display:flex;justify-content:space-between;align-items:center;padding:28px 0;border-bottom:1px solid var(--line);gap:24px}.brand{text-decoration:none;color:var(--text);font-size:32px;font-weight:900;letter-spacing:-2px;line-height:1}.brand span{color:var(--accent)}.brand small{display:block;font-size:10px;letter-spacing:2px;margin-top:7px}nav,footer div{display:flex;gap:24px;flex-wrap:wrap}nav a{color:var(--muted);font-size:14px;text-decoration:none}.hero{padding:90px 0 76px;border-bottom:1px solid var(--line)}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:bold;color:var(--accent)}h1,h2,h3{line-height:1.15;letter-spacing:-.035em}h1{font-size:clamp(40px,7vw,78px);margin:22px 0}h2{font-size:32px}h3{font-size:21px}.intro{font-size:21px;max-width:630px;color:var(--muted)}.button{display:inline-flex;gap:35px;align-items:center;background:var(--accent);color:#08111a;font-weight:bold;padding:14px 22px;border-radius:6px;text-decoration:none;margin-top:20px}.button:hover{background:#a5e3ff;color:#08111a}section{padding:50px 0}section>p{max-width:780px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px}.cards article{background:var(--panel);padding:26px;border:1px solid var(--line);border-radius:8px}.cards p,.notice p{color:var(--muted)}.number{color:var(--accent);font-size:13px}.notice{border-top:1px solid var(--line);padding-bottom:60px}.document{max-width:760px;padding:48px 0 64px}.document h1{font-size:clamp(36px,6vw,56px)}.document h2{font-size:25px;margin-top:38px}.document p{color:var(--muted)}footer{border-top:1px solid var(--line);padding:30px 0;display:flex;justify-content:space-between;gap:24px;font-size:13px;color:var(--muted)}.skip{position:absolute;left:12px;top:-80px;padding:10px;background:var(--bg)}.skip:focus{top:12px}@media(max-width:650px){header,main,footer{width:calc(100% - 32px)}.hero{padding:52px 0}.cards{grid-template-columns:1fr}nav{gap:16px}footer{flex-direction:column}.intro{font-size:18px}}