:root{--bg:#0a0e17;--panel:#121a2b;--line:#293953;--text:#f5f7fa;--muted:#acbad0;--accent:#54e5d3;--warm:#ffd39b;color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.7 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#c6fff7}a:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px;border-radius:3px}.wrap{width:min(1080px,100%);margin:auto;padding:0 28px}.skip{position:absolute;top:-100px;left:16px;background:var(--text);color:var(--bg);padding:12px;z-index:50}.skip:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
nav{position:sticky;top:0;z-index:10;background:rgba(10,14,23,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(14px)}.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:76px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:750;letter-spacing:.02em;font-size:16px;color:var(--text);text-decoration:none;white-space:nowrap}.brand-accent{color:var(--accent)}.brand img{border-radius:7px;border:1px solid var(--line)}nav ul{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin:0;padding:0;list-style:none}nav li a{color:var(--muted);font-size:14px;text-decoration:none}nav li a:hover{text-decoration:underline}
.hero{padding:64px 0 70px;background:radial-gradient(ellipse at 90% 10%,rgba(75,91,255,.13),transparent 65%)}.hero.compact{padding:70px 0 54px}.kicker{color:var(--accent);font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin:0 0 24px}.kicker strong{font-weight:600}h1{font-size:clamp(36px,5.3vw,60px);line-height:1.1;letter-spacing:-.035em;max-width:890px;margin:0 0 28px;font-weight:760}h2{font-size:clamp(26px,3.3vw,38px);line-height:1.2;letter-spacing:-.02em;max-width:840px;margin:0 0 24px}h3{font-size:23px;line-height:1.3;margin:0 0 16px}.hero-copy{max-width:800px;font-size:18px}.hero-copy p{color:var(--muted);margin:18px 0}.hero-copy p:first-child{font-size:clamp(19px,2.2vw,23px);color:var(--text)}.button{display:inline-block;text-decoration:none;font-size:15px;font-weight:650;padding:12px 19px;border-radius:8px;margin:10px 5px 0 0}.primary{background:var(--accent);color:#052c2a}.primary:hover{background:#9bffef;color:#052c2a}.secondary{border:1px solid #7086a8;color:var(--text)}
main>section{position:relative;padding:64px 0;border-top:1px solid var(--line)}.reading{max-width:810px}.reading p{margin:0 0 20px;color:var(--muted)}.reading strong{color:var(--text)}.reading p:last-child{margin-bottom:0}.anchor{position:absolute;top:0;scroll-margin-top:100px}.guide{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:28px;margin-top:36px;max-width:870px}.guide>p{color:var(--warm);font-size:14px}.guide details{border-top:1px solid #344763}.guide summary{cursor:pointer;font-size:17px;font-weight:650;padding:18px 0;line-height:1.4}.detail-body{padding:0 0 14px 20px;color:var(--muted);max-width:760px}.detail-body p{margin:0 0 15px}.table-wrap{margin:30px 0}table{border-collapse:collapse;width:100%;font-size:15px}th,td{text-align:left;vertical-align:top;padding:17px 18px 17px 0;border-bottom:1px solid var(--line)}thead th{color:var(--accent);font-size:13px;text-transform:uppercase;letter-spacing:.06em}tbody th{width:26%;font-weight:600;color:var(--text)}td{color:var(--muted)}
footer{border-top:1px solid var(--line);padding:44px 0 70px;color:var(--muted);font-size:14px}.footer-inner{display:flex;justify-content:space-between;gap:28px;flex-wrap:wrap}footer p{margin:10px 0 0}footer .brand{gap:0}
@media(max-width:900px){.nav-inner{flex-wrap:wrap;gap:13px;padding-top:16px;padding-bottom:16px}nav ul{width:100%;gap:14px 20px}.hero{padding-top:58px}html{scroll-padding-top:145px}.anchor{scroll-margin-top:145px}}
@media(max-width:480px){.wrap{padding-left:20px;padding-right:20px}.hero{padding:48px 0}.hero.compact{padding:44px 0}.hero-copy{font-size:17px}.button{display:block;text-align:center;margin-right:0}.hero-actions{font-size:0!important}.hero-actions .button{font-size:15px}nav ul{gap:8px 17px}nav li a{font-size:13px}main>section{padding:44px 0}.guide{padding:20px}.guide h3{font-size:21px}.guide summary{font-size:16px}.detail-body{padding-left:0}table{font-size:14px;table-layout:fixed}tbody th{width:33%}th,td{padding-right:10px;overflow-wrap:anywhere}h1{font-size:36px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}