:root{--paper:#f5f8f7;--surface:#fff;--ink:#17313b;--muted:#51636a;--line:#d8e2e1;--teal:#1f7075;--teal-dark:#15565a;--mint:#d8ece8;--deep:#102d39;--gold:#e6b662;--radius:14px}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 "Segoe UI Variable","Segoe UI",Arial,sans-serif}
a{color:var(--teal-dark);text-underline-offset:.2em}
a:hover{color:#0d3f43}
a:focus-visible,summary:focus-visible{outline:3px solid var(--gold);outline-offset:4px}
.wrap{width:min(1180px,calc(100% - 48px));margin-inline:auto}
.skip{position:absolute;z-index:20;top:-100px;left:16px;background:var(--deep);color:#fff;padding:8px 14px}
.skip:focus{top:12px}
.site-header{background:rgba(255,255,255,.94);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:38px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;font-size:19px;font-weight:750;white-space:nowrap;letter-spacing:-.035em}
.brand em{font-style:normal;font-weight:430;color:var(--muted)}
.brand-mark{width:25px;height:25px;display:flex;gap:3px;align-items:flex-end;transform:skewX(-13deg)}
.brand-mark i{display:block;background:var(--teal);width:5px;border-radius:3px 3px 0 0}
.brand-mark i:nth-child(1){height:12px}.brand-mark i:nth-child(2){height:21px}.brand-mark i:nth-child(3){height:16px}
nav{display:flex;align-items:center;gap:26px;margin-left:auto}
nav a{font-size:14px;color:var(--muted);text-decoration:none;font-weight:600;padding:25px 0;border-bottom:2px solid transparent;white-space:nowrap}
nav a:hover,nav a[aria-current]{color:var(--teal-dark);border-bottom-color:var(--teal)}
.github-link{font-size:13px;font-weight:700;text-decoration:none;white-space:nowrap;border:1px solid var(--line);padding:8px 12px;border-radius:7px}
.hero{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(320px,.8fr);gap:70px;align-items:center;padding-block:92px 104px}
.kicker{margin:0 0 16px;color:var(--teal-dark);font-size:12px;line-height:1.3;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
h1,h2,h3,p{margin-top:0}
h1,h2{font-family:"Aptos Display","Segoe UI Variable Display","Segoe UI",Arial,sans-serif;letter-spacing:-.045em;line-height:1.08}
h1{font-size:clamp(43px,5.2vw,74px);font-weight:760;margin-bottom:25px;max-width:850px}
h2{font-size:clamp(30px,3.1vw,44px);font-weight:740;margin-bottom:19px}
h3{font-size:19px;line-height:1.3;letter-spacing:-.02em}
.lead{font-size:clamp(18px,1.65vw,22px);line-height:1.55;color:#36505a;max-width:710px;margin-bottom:28px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:23px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:10px 19px;border-radius:8px;font-weight:750;font-size:14px;text-decoration:none;transition:background .15s ease,transform .15s ease}
.button:hover{transform:translateY(-2px)}
.button.primary{background:var(--teal-dark);color:#fff}.button.primary:hover{background:#103f43}
.button.secondary{border:1px solid #a9c5c2;color:var(--teal-dark);background:transparent}.button.secondary:hover{background:var(--mint)}
.micro{font-size:13px;color:var(--muted);max-width:610px;margin-bottom:0}
.answer-card{background:var(--deep);border-radius:var(--radius);padding:26px;color:#e9f4f2;box-shadow:17px 17px 0 #d6e7e5;transform:rotate(1deg)}
.card-top{display:flex;gap:10px;align-items:center;font-weight:750;font-size:14px;padding-bottom:23px;border-bottom:1px solid #345260}
.signal{height:8px;width:8px;border-radius:50%;background:#6dd3bd;box-shadow:0 0 0 5px #24585b}
.flow{padding-top:18px}
.flow div{display:grid;grid-template-columns:36px 1fr;gap:15px;align-items:center;min-height:61px;border-bottom:1px solid #345260}
.flow div:last-child{border-bottom:0}
.flow strong{color:var(--gold);font-size:12px;letter-spacing:.04em}
.flow span{font-size:17px;line-height:1.3;font-weight:600}
.answer-card p{color:#9fbbc1;font-size:12px;line-height:1.5;margin:18px 0 0}
.band{background:var(--deep);color:#fff;padding-block:47px;border-top:4px solid var(--teal)}
.band-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.band-label{color:#a4d3cb;font-size:12px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}
.band h2{font-size:clamp(27px,2.7vw,38px);margin:12px 0 0;max-width:470px}
.band p{font-size:18px;line-height:1.65;color:#d2e1e2;margin:0;max-width:570px}
.section{padding-block:88px 10px}
.section-head{max-width:670px;margin-bottom:30px}
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.note{background:#fff;border:1px solid var(--line);padding:30px 32px;border-radius:var(--radius)}
.note.good{background:#eaf5f1;border-color:#c9e2d9}
.note h3{margin-bottom:15px}
ul,ol{padding-left:23px;margin-top:10px}
li+li{margin-top:10px}
.note ul{margin-bottom:0;color:#415962}
.path-list{border-top:1px solid #b6c9c6}
.path-list a{display:grid;grid-template-columns:58px 1fr 24px;gap:16px;align-items:center;padding:25px 6px;color:var(--ink);text-decoration:none;border-bottom:1px solid #b6c9c6}
.path-list a:hover{background:#ebf4f2}
.path-list strong{display:block;font-size:20px;line-height:1.3;letter-spacing:-.025em}
.path-list small{display:block;color:var(--muted);font-size:14px;margin-top:4px}
.path-number{font:700 14px/1.3 Consolas,monospace;color:var(--teal)}
.faq{padding-bottom:60px}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 50px}
.faq-grid>div{border-top:1px solid #c5d6d3;padding:22px 0}
.faq-grid h3{margin-bottom:8px}
.faq-grid p{color:#4b626a;margin:0}
.source-box{display:flex;gap:45px;align-items:center;justify-content:space-between;background:#e5efec;border-left:5px solid var(--teal);padding:32px 35px;margin-bottom:92px}
.source-box h2{font-size:28px;margin-bottom:10px}
.source-box p:last-child{max-width:720px;color:var(--muted);margin-bottom:0}
.text-link{font-weight:750;white-space:nowrap;text-decoration:none}
.article{padding-block:72px 95px}
.article-header{max-width:850px;padding-bottom:45px;border-bottom:1px solid #b6c9c6}
.article-header h1{font-size:clamp(42px,4.5vw,66px)}
.status-note{font-size:13px;color:var(--muted);background:#e7efed;border-left:3px solid #98bab4;padding:12px 15px;margin-bottom:0}
.article-layout{display:grid;grid-template-columns:minmax(0,850px) 190px;justify-content:space-between;gap:55px;padding-top:36px}
.prose{font-size:17px;line-height:1.75;color:#314a53}
.prose h2{font-size:30px;margin:45px 0 17px;color:var(--ink);scroll-margin-top:20px}
.prose h2:first-child{margin-top:0}
.prose p{margin-bottom:19px}
.prose strong{color:var(--ink)}
.prose a{font-weight:640}
.prose pre{overflow-x:auto;background:var(--deep);border-radius:8px;color:#e8f5f2;padding:20px 22px;font:14px/1.6 Consolas,"Courier New",monospace;white-space:pre}
.prose code{font:14px/1.4 Consolas,"Courier New",monospace;background:#e4eceb;padding:2px 4px;border-radius:3px}
.prose pre code{color:inherit;background:none;padding:0}
.prose li+li{margin-top:9px}
.callout{margin:34px 0;padding:22px 25px;background:#e4f1ed;border-left:4px solid var(--teal)}
.callout p{margin:5px 0 0}
.toc{align-self:start;position:sticky;top:25px;border-left:1px solid #b6c9c6;padding-left:20px;font-size:13px}
.toc strong{display:block;margin-bottom:12px}
.toc a{display:block;color:var(--muted);text-decoration:none;padding:5px 0}
.toc a:hover{color:var(--teal-dark)}
.topology{display:flex;gap:0;flex-wrap:wrap;margin:25px 0}
.topology span{position:relative;background:#e2eeeb;border:1px solid #b9d2cd;padding:11px 15px;font-size:14px;font-weight:700;margin-right:25px;margin-bottom:8px}
.topology span:not(:last-child):after{content:"→";position:absolute;left:calc(100% + 6px);color:var(--teal);top:8px;font-size:19px}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:15px;line-height:1.55}
caption{text-align:left;font-size:12px;color:var(--muted);padding-bottom:10px}
th,td{text-align:left;vertical-align:top;padding:13px 14px;border-bottom:1px solid #c6d6d3}
thead th{background:#e3eeeb;color:var(--ink)}
tbody th{width:29%;color:var(--ink)}
td{width:35%}
.site-footer{background:#e8f0ee;border-top:1px solid #c5d6d3;padding-block:43px}
.footer-inner{display:grid;grid-template-columns:1.5fr 1fr auto;gap:40px;align-items:start}
.footer-inner strong{font-size:17px}
.footer-inner p{font-size:13px;color:var(--muted);max-width:430px;margin:6px 0 0}
.footer-inner>div:nth-child(2){display:flex;gap:7px 17px;flex-wrap:wrap;max-width:320px}
.footer-inner a{font-size:13px;text-decoration:none}
.footer-date{white-space:nowrap}
@media(max-width:950px){.hero{grid-template-columns:1fr;gap:45px;padding-block:72px}.answer-card{max-width:600px;transform:none;box-shadow:10px 10px 0 #d6e7e5}.header-inner{gap:18px}.github-link{display:none}.article-layout{grid-template-columns:1fr 150px;gap:34px}.footer-inner{grid-template-columns:1fr 1fr}.footer-date{grid-column:1/-1}}
@media(max-width:680px){.wrap{width:min(100% - 32px,1180px)}.header-inner{display:block;padding-top:14px}.brand{font-size:18px}nav{margin:8px -16px 0;overflow-x:auto;gap:22px;padding:0 16px}nav a{padding:11px 0 12px}.hero{padding-block:52px 73px}.hero h1{font-size:44px}.answer-card{padding:22px}.band-grid,.split,.faq-grid{grid-template-columns:1fr;gap:22px}.band{padding-block:39px}.section{padding-block:65px 0}.faq{padding-bottom:44px}.note{padding:23px}.path-list a{grid-template-columns:37px 1fr 16px;gap:10px}.path-list strong{font-size:18px}.source-box{display:block;padding:25px;margin-bottom:65px}.text-link{display:inline-block;margin-top:18px}.article{padding-block:48px 65px}.article-layout{display:block}.toc{display:none}.article-header{padding-bottom:32px}.prose{font-size:16px}.prose h2{font-size:27px}.footer-inner{display:block}.footer-inner>div:nth-child(2){margin-top:24px}.footer-date{margin-top:25px!important}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}.button:hover{transform:none}}