:root{color-scheme:light;--bg:#F8F9FE;--ink:#191C20;--muted:#43474E;--line:#D4D9E3;--surface:#FFFFFF;--accent:#0061A4;--tint:#D1E4FF;--button:#FFFFFF}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 'Segoe UI',system-ui,sans-serif}a{color:var(--accent);text-underline-offset:4px}a:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{max-width:100%;height:auto}header,main,footer{max-width:1240px;margin:auto;padding:0 40px}header{display:flex;justify-content:space-between;align-items:center;gap:20px;padding-top:26px;padding-bottom:26px;border-bottom:1px solid var(--line)}.brand{font-size:23px;font-weight:750;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:12px}.brand img{width:38px;height:38px;object-fit:contain}nav{display:flex;gap:24px;align-items:center}nav>a:not(.support){font-size:14px;font-weight:650;text-decoration:none}.support img{display:block;width:170px}.skip{position:absolute;top:-100px}.skip:focus{top:0;background:var(--surface);padding:15px;z-index:10}.hero{padding:78px 0 64px;display:grid;grid-template-columns:1fr 1.1fr;gap:55px;align-items:center}.eyebrow{font-size:12px;font-weight:750;letter-spacing:.13em;text-transform:uppercase;color:var(--accent)}h1{font-size:clamp(44px,5.2vw,72px);line-height:1.04;letter-spacing:-.055em;margin:23px 0 25px;font-weight:720}h1 span{display:block}h2{font-size:clamp(30px,3vw,42px);line-height:1.18;letter-spacing:-.035em;margin:12px 0 24px}h3{font-size:21px;line-height:1.3;margin:0 0 13px}.intro{font-size:19px;line-height:1.7;color:var(--muted);max-width:570px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 18px}.button{border-radius:8px;padding:12px 20px;text-decoration:none;font-size:15px;font-weight:700;border:1px solid var(--accent);display:inline-block}.primary{background:var(--accent);color:var(--button)}.minor{font-size:13px;color:var(--muted)}.visual{padding:24px;background:var(--tint);border:1px solid var(--line);border-radius:20px;position:relative}.visual .screen{display:block;max-height:510px;width:auto;margin:auto;border-radius:10px;box-shadow:0 18px 35px #16231b25}.visual figcaption{font-size:12px;text-align:center;color:var(--muted);margin-top:18px}.visual figure{margin:0}.visual.diagram{padding:14px}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:35px;border-top:1px solid var(--line);padding:42px 0 70px}.features p{color:var(--muted);font-size:16px;margin:0}.number{font-size:12px;color:var(--accent);font-weight:700;display:block;margin-bottom:20px}.section{border-top:1px solid var(--line);padding:60px 0}.split{display:grid;grid-template-columns:1fr 1.15fr;gap:70px}.steps{list-style:none;counter-reset:step;padding:0;margin:0}.steps li{counter-increment:step;display:flex;gap:18px;margin:0 0 25px}.steps li:before{content:counter(step,decimal-leading-zero);font-size:13px;color:var(--accent);font-weight:750;padding-top:4px}.requirements{background:var(--tint);padding:26px;border-radius:12px;margin-top:30px;font-size:15px}.requirements h3{font-size:17px}.gallery{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.gallery figure{margin:0;padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--tint)}.gallery img{display:block;margin:auto;max-height:570px;object-fit:contain}.gallery figcaption{font-size:14px;color:var(--muted);padding-top:18px}.diagram-image{width:100%;display:block}.diagram-section{background:var(--tint);border-radius:16px;padding:16px;margin-top:28px}pre{padding:20px;border:1px solid var(--line);background:var(--surface);border-radius:8px;overflow:auto;font-size:14px}footer{border-top:1px solid var(--line);padding-top:30px;padding-bottom:40px;display:flex;justify-content:space-between;gap:20px;font-size:13px;color:var(--muted)}.siblings{display:flex;gap:18px;flex-wrap:wrap}.limits{font-size:15px;color:var(--muted)}@media(max-width:850px){header,main,footer{padding-left:24px;padding-right:24px}.hero{grid-template-columns:1fr;gap:30px;padding-top:46px}.hero .visual{max-width:640px;width:100%;margin:auto}.features{gap:25px}.split{gap:30px}.visual .screen{max-height:500px}nav>a:not(.support){display:none}footer{flex-direction:column}}@media(max-width:580px){body{font-size:16px}header{gap:10px}.brand{font-size:20px}.brand img{width:28px;height:28px}.support img{width:142px}.features,.split,.gallery{grid-template-columns:1fr}.features{gap:32px;padding-bottom:40px}.section{padding:40px 0}.hero{padding-bottom:40px}.intro{font-size:18px}.visual{padding:15px}.gallery figure{padding:14px}.actions .button{flex:1;text-align:center}h1{font-size:48px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
@media(prefers-color-scheme:dark){:root:not([data-theme="light"]){color-scheme:dark;--bg:#10131A;--ink:#E2E2E9;--muted:#C4C6D0;--line:#323742;--surface:#1A1E26;--accent:#9FCAFF;--tint:#172C42;--button:#003258}}
:root[data-theme="dark"]{color-scheme:dark;--bg:#10131A;--ink:#E2E2E9;--muted:#C4C6D0;--line:#323742;--surface:#1A1E26;--accent:#9FCAFF;--tint:#172C42;--button:#003258}
.theme-control{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap}.theme-control select{font:inherit;color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:7px;padding:8px 10px;cursor:pointer}.theme-control select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.diagram-image{height:auto}.architecture-scroll{overflow-x:auto;border-radius:12px;background:var(--surface)}.architecture-scroll .diagram-image{min-width:740px}.architecture-scroll:focus-visible{outline:3px solid var(--accent);outline-offset:4px}.diagram-hint{font-size:14px;color:var(--muted);margin-bottom:0}@media(max-width:580px){header{flex-wrap:wrap;gap:16px}header nav{width:100%;justify-content:space-between;gap:12px}.theme-control{order:-1}.architecture-scroll .diagram-image{min-width:740px}}