:root{color-scheme:light dark;--bg:#F3F8FF;--ink:#1C2B3A;--muted:#5E7186;--card:#FFFFFF;--line:#D6E6F7;--accent:#74B9FF;--accent-strong:#3A7BC2;--accent-ink:#0A1B33;--mint:#2B986D;--warm:#A29BFE}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.75}a{color:inherit;text-underline-offset:5px}header,main,footer{max-width:1120px;margin:auto;padding:28px}header{display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:21px;font-weight:750;text-decoration:none}.brand span{display:block;font-size:11px;font-weight:400;letter-spacing:2px}nav{display:flex;gap:24px;font-size:14px}nav a{padding:10px 0;text-decoration:none}nav a:hover{color:var(--mint)}.hero{display:grid;grid-template-columns:1.35fr 1fr;gap:72px;align-items:center;padding:76px 0 100px}.eyebrow,.number{font-size:12px;letter-spacing:2px;font-weight:650;color:var(--accent-strong)}h1{font-size:clamp(34px,4.5vw,54px);line-height:1.35;letter-spacing:-2px;margin:22px 0}h2{font-size:32px;line-height:1.4;letter-spacing:-1px}h3{font-size:20px;line-height:1.5}.lead{font-size:18px;color:var(--muted)}.badge{display:inline-block;margin-top:18px;border-radius:99px;padding:10px 22px;background:var(--accent);color:var(--accent-ink);font-size:14px}.small{font-size:12px;color:var(--muted)}.practice{background:var(--card);padding:28px;border:1px solid var(--line);border-radius:32px;transform:rotate(3deg);box-shadow:0 24px 65px #74B9FF26;border-top:5px solid var(--warm)}.practice>span{font-size:12px;color:var(--muted)}.kana{font-family:serif;font-size:160px;text-align:center;line-height:1.55;margin:22px 0;background:linear-gradient(90deg,transparent 49.7%,var(--line) 50%,transparent 50.3%),linear-gradient(transparent 49.7%,var(--line) 50%,transparent 50.3%);border:1px solid var(--line)}.caption{display:flex;flex-direction:column}.caption span{font-size:12px;color:var(--muted)}section{padding-bottom:64px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}article{padding:28px;background:var(--card);border:1px solid var(--line);border-radius:24px}article p,.quiet p{color:var(--muted)}.quiet{margin-top:30px;padding:40px 0;border-top:1px solid var(--line)}footer{border-top:1px solid var(--line);font-size:14px;padding-bottom:48px}.document{max-width:780px;padding-top:40px;padding-bottom:72px}.document h2{font-size:23px;margin-top:36px}:focus-visible{outline:3px solid var(--accent);outline-offset:6px}@media(max-width:720px){header{align-items:flex-start;flex-direction:column;gap:10px}nav{gap:22px}.hero{grid-template-columns:1fr;gap:35px;padding:35px 0 65px}.practice{max-width:360px;width:100%;margin:auto;transform:none}.grid{grid-template-columns:1fr}h2{font-size:27px}header,main,footer{padding-left:22px;padding-right:22px}}@media(prefers-color-scheme:dark){:root{--bg:#0E1720;--ink:#E3EEF9;--muted:#8DA2B8;--card:#16222E;--line:#2A3C4F;--accent:#74B9FF;--accent-strong:#74B9FF;--accent-ink:#0A1B33;--mint:#75CBA6;--warm:#A29BFE}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}