:root{color-scheme:light;--ink:#17263a;--muted:#526176;--blue:#0059bd;--line:#dce3eb;--paper:#fff;--wash:#f5f7fa;--nav:#edf4fe}
*{box-sizing:border-box}html{scroll-padding-top:6rem}body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.75}
a{color:var(--blue);text-decoration-thickness:1px;text-underline-offset:.19em}a:hover{text-decoration-thickness:2px}a:focus-visible,main:focus-visible{outline:3px solid #0059bd;outline-offset:4px;border-radius:3px}
.topbar{height:78px;padding:0 40px;display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);background:#ffffffed;position:sticky;top:0;z-index:2;backdrop-filter:blur(12px)}
.brand{font-size:27px;font-weight:760;letter-spacing:-1.2px;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:13px}.brand span{font-size:11px;letter-spacing:.08em;font-weight:650;text-transform:uppercase;border:1px solid var(--line);border-radius:6px;padding:2px 8px;color:var(--muted)}.source-link{font-size:13px;text-decoration:none;font-weight:600}
.docs-shell{display:grid;grid-template-columns:250px minmax(0,1fr);max-width:1380px;margin:auto}.sidebar{padding:37px 24px 36px 32px;border-right:1px solid var(--line);position:sticky;top:78px;align-self:start;max-height:calc(100dvh - 78px);overflow:auto}.nav-label{font-size:11px;letter-spacing:.13em;text-transform:uppercase;font-weight:750;color:var(--muted);margin:0 0 17px 12px}.sidebar nav{display:flex;flex-direction:column;gap:4px}.sidebar nav a{font-size:14px;font-weight:550;color:var(--muted);padding:9px 12px;text-decoration:none;border-radius:7px}.sidebar nav a:hover{background:var(--wash);color:var(--ink)}.sidebar nav a[aria-current]{background:var(--nav);color:var(--blue);font-weight:700;box-shadow:inset 3px 0 var(--blue)}.sidebar-note{margin:32px 12px 24px;border-top:1px solid var(--line);padding-top:23px;font-size:13px;line-height:1.8;color:var(--muted)}.privacy-link{font-size:12px;margin-left:12px;color:var(--muted)}
main{padding:48px clamp(24px,5vw,78px) 24px;min-width:0}.content{max-width:850px}.content>h1{font-size:clamp(32px,4.3vw,54px);line-height:1.1;letter-spacing:-.045em;margin:10px 0 25px;font-weight:760;max-width:770px}.content h2{margin:42px 0 13px;font-size:25px;line-height:1.3;letter-spacing:-.025em}.content h3{font-size:19px;margin-top:28px;line-height:1.4}.content p{margin:0 0 19px}.eyebrow{font-size:11px;font-weight:750;letter-spacing:.13em;text-transform:uppercase;color:var(--blue)}.content .eyebrow{margin-bottom:10px}.lead{font-size:20px;line-height:1.65;max-width:710px;color:var(--muted);margin-bottom:28px!important}.content ul,.content ol{padding-left:24px;margin:0 0 24px}.content li{margin:7px 0;padding-left:4px}.notice{background:#eef5ff;border:1px solid #ccdef6;border-left:3px solid var(--blue);padding:18px 21px;border-radius:7px;font-size:15px;margin:25px 0}.warning{background:#fff7e8;border-color:#e7d2a6;border-left-color:#9c6200;color:#523b15}
.hero{padding:clamp(26px,4vw,48px);border-radius:18px;background:radial-gradient(ellipse at top right,#174d78,transparent 70%),#10263e;color:#fff;margin-bottom:30px}.hero .eyebrow{color:#a8d8ff}.hero h1{font-size:clamp(36px,4.6vw,58px);line-height:1.08;letter-spacing:-.045em;margin:17px 0 23px;font-weight:760}.hero h1>span{color:#a8d8ff}.hero .lead{color:#d7e5f3;font-size:18px;max-width:580px;margin-bottom:18px!important}.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:8px 18px}.hero-button{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;min-height:54px;padding:12px 22px;background:#fff;color:#10263e;border-radius:7px;text-decoration:none;font-weight:700;font-size:15px}.hero-button:hover{background:#dff0ff}.play-badge{display:inline-flex;border-radius:7px}.play-badge img{display:block;width:210px;max-width:100%;height:auto}.hero a:focus-visible{outline-color:#a8d8ff}.hero .hero-platforms{font-size:18px;font-weight:650;color:#fff;margin:20px 0 0}
.hero .hero-tagline{margin:26px 0 0;padding-top:22px;border-top:1px solid #54718e;color:#d7e5f3;font-size:20px;line-height:1.65}.hero-tagline>span{font-size:15px;color:#b7cee4}
.paths{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:31px 0 39px}.path{display:block;border:1px solid var(--line);border-radius:12px;padding:25px;color:var(--ink);text-decoration:none;transition:border-color .15s,background .15s}.path:hover{border-color:var(--blue);background:#f8fbff}.path h2{font-size:21px;margin:10px 0 10px;display:flex;justify-content:space-between;gap:12px}.path p{font-size:14px;color:var(--muted);margin:0}.path .eyebrow{font-size:10px}
.network-diagram{display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:16px;align-items:center;background:var(--wash);border:1px solid var(--line);border-radius:12px;padding:30px 18px;margin:28px 0}.network-diagram>div{text-align:center;display:flex;flex-direction:column;align-items:center}.network-diagram strong{font-size:13px}.network-diagram small{font-size:11px;color:var(--muted);margin-top:3px}.device-icon{display:grid;place-items:center;width:38px;height:46px;border:2px solid #8c9db2;border-radius:8px;margin-bottom:13px;font:600 12px monospace;color:var(--muted);background:white}.tunnel>span{font-size:31px;color:var(--blue);line-height:1.2;margin-bottom:10px}
pre{padding:19px 21px;background:#17263a;color:#f0f5ff;border-radius:9px;overflow:auto;line-height:1.7;font-size:13px;margin:20px 0 25px;tab-size:2}code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em}p code,li code,td code,.notice code{background:#edf1f6;padding:2px 5px;border-radius:4px;overflow-wrap:anywhere}pre code{font-size:inherit;background:none;padding:0}table{display:block;max-width:100%;overflow-x:auto;border-collapse:collapse;font-size:14px;margin:20px 0 28px}th,td{text-align:left;vertical-align:top;padding:13px 15px;border-bottom:1px solid var(--line);min-width:110px}th{background:var(--wash);font-weight:650}td:first-child{font-weight:550}blockquote{border-left:3px solid var(--line);padding-left:20px;color:var(--muted);margin-left:0}footer{max-width:850px;margin-top:55px;padding:25px 0;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}footer a{color:var(--muted)}.skip-link{position:fixed;left:16px;top:-100px;background:white;padding:12px;z-index:4}.skip-link:focus{top:10px}
@media(max-width:800px){.topbar{height:66px;padding:0 20px;position:static}.brand{font-size:24px}.source-link{font-size:12px}.docs-shell{display:block}.sidebar{position:static;max-height:none;padding:17px 20px;border-right:0;border-bottom:1px solid var(--line);background:var(--wash)}.nav-label,.sidebar-note,.privacy-link{display:none}.sidebar nav{flex-direction:row;flex-wrap:wrap;gap:4px 7px}.sidebar nav a{font-size:12px;padding:6px 8px}.sidebar nav a[aria-current]{box-shadow:none}.content>h1{font-size:38px}main{padding:32px 22px 15px}.lead{font-size:18px}.paths{gap:12px}.path{padding:19px}.path h2{font-size:18px}.content h2{font-size:23px}.network-diagram{gap:8px;padding:22px 10px}.network-diagram strong{font-size:12px}.network-diagram small{font-size:10px}}
@media(max-width:480px){.paths{grid-template-columns:1fr}.content>h1{font-size:35px}.brand span{display:none}.network-diagram{grid-template-columns:1fr}.network-diagram .tunnel{margin:5px 0}.tunnel>span{transform:rotate(90deg)}th,td{padding:11px 10px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
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