/* DartRelay documentation — shares the dartrelay.com palette and header */
:root{--navy:#0b2c5a;--orange:#e45a0a;--ink:#10233f;--muted:#62738a;--line:#dce5ef;--bg:#f6f9fc;--soft:#eef4fb;--code:#f3f6fa}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--ink);line-height:1.65;background:#fff}
a{text-decoration:none;color:inherit}
.container{width:min(1160px,calc(100% - 40px));margin:auto}
.wide{width:min(1380px,calc(100% - 40px));margin:auto}

/* Site header (same as dartrelay.com) */
header.site{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{height:92px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.logo{height:72px;width:auto;object-fit:contain;display:block}
header.site nav{display:flex;gap:22px;white-space:nowrap;align-items:center;font-size:14px;font-weight:700;color:#40536c}
header.site nav a:hover,header.site nav a.active{color:var(--orange)}
.nav-cta{padding:9px 16px;border:1px solid var(--orange);border-radius:9px;color:var(--orange)}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:9px;padding:8px 12px;font:inherit;font-size:13px;font-weight:700;color:var(--navy);cursor:pointer}

/* Docs strip under the header */
.docs-bar{background:var(--navy);color:#fff}
.docs-bar .wide{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:52px}
.docs-bar .crumbs{font-size:13px;color:#c9d6e6;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.docs-bar .crumbs a{color:#fff;font-weight:700}
.docs-bar .crumbs a:hover{color:#ffb98f}
.docs-bar .crumbs .sep{opacity:.5}
.docs-bar .ver{font-size:12px;color:#c9d6e6;border:1px solid rgba(255,255,255,.2);padding:4px 10px;border-radius:99px;white-space:nowrap}

/* Layout */
.docs{display:grid;grid-template-columns:272px minmax(0,1fr) 220px;gap:44px;align-items:start;padding:34px 0 80px}
.docs.no-toc{grid-template-columns:272px minmax(0,1fr)}

/* Sidebar */
.side{position:sticky;top:112px;max-height:calc(100vh - 130px);overflow:auto;padding:4px 6px 0 2px;scrollbar-width:thin}
.search{position:relative;margin-bottom:18px}
.search input{width:100%;font:inherit;font-size:14px;border:1px solid #ccd8e5;border-radius:10px;padding:10px 12px 10px 36px;color:var(--ink);background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%2362738a' stroke-width='2' viewBox='0 0 24 24'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E") no-repeat 12px center;outline:none}
.search input:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(228,90,10,.1)}
.results{display:none;position:absolute;left:0;right:0;top:calc(100% + 6px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 50px rgba(11,44,90,.16);z-index:40;max-height:420px;overflow:auto}
.results.open{display:block}
.results a{display:block;padding:10px 13px;border-bottom:1px solid #eef2f7}
.results a:last-child{border-bottom:0}
.results a:hover,.results a.sel{background:#fff6f0}
.results b{display:block;color:var(--navy);font-size:13.5px}
.results span{display:block;color:var(--muted);font-size:12px;line-height:1.45}
.results .none{padding:12px 13px;color:var(--muted);font-size:13px}
.side h5{margin:20px 0 6px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--orange);font-weight:800}
.side h5:first-of-type{margin-top:4px}
.side ul{list-style:none;margin:0;padding:0}
.side li a{display:block;padding:6px 10px;border-radius:8px;font-size:14px;color:#40536c;border-left:2px solid transparent}
.side li a:hover{background:var(--bg);color:var(--navy)}
.side li a.current{background:#fff3ec;color:var(--orange);font-weight:700;border-left-color:var(--orange)}

/* Article */
article.doc{min-width:0;max-width:820px}
.doc-head .kicker{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.doc-head .kicker:before{content:"";display:inline-block;width:24px;height:2px;background:var(--orange);vertical-align:middle;margin-right:9px}
article.doc h1{font-size:clamp(32px,4vw,44px);line-height:1.1;letter-spacing:-.035em;color:var(--navy);margin:12px 0 14px}
article.doc .lead{font-size:18px;color:#53677f;margin:0 0 26px}
article.doc h2{font-size:26px;line-height:1.2;letter-spacing:-.02em;color:var(--navy);margin:46px 0 12px;padding-top:22px;border-top:1px solid var(--line)}
article.doc h2:first-of-type{border-top:0;padding-top:0}
article.doc h3{font-size:18.5px;color:var(--navy);margin:28px 0 8px}
article.doc h4{font-size:15.5px;color:var(--navy);margin:20px 0 6px}
article.doc p,article.doc li{font-size:15.5px}
article.doc p{margin:0 0 14px}
article.doc ul,article.doc ol{padding-left:22px;margin:0 0 16px}
article.doc li{margin:5px 0}
article.doc a:not(.card):not(.btn){color:#1d5fb4;border-bottom:1px solid rgba(29,95,180,.25)}
article.doc a:not(.card):not(.btn):hover{color:var(--orange);border-bottom-color:var(--orange)}
.anchor{opacity:0;margin-left:8px;color:#9fb0c4!important;border:0!important;font-weight:400;font-size:.8em}
h2:hover .anchor,h3:hover .anchor{opacity:1}

/* Numbered steps */
ol.steps{list-style:none;padding:0!important;counter-reset:step;margin:6px 0 22px}
ol.steps>li{position:relative;padding:2px 0 14px 50px;margin:0;counter-increment:step}
ol.steps>li:before{content:counter(step);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:#fff1e9;color:var(--orange);font-weight:800;font-size:14px;display:grid;place-items:center;border:1px solid #f7d4c1}
ol.steps>li:after{content:"";position:absolute;left:16px;top:36px;bottom:2px;width:1px;background:#f0dccf}
ol.steps>li:last-child:after{display:none}
ol.steps>li>strong:first-child{color:var(--navy)}
ol.steps ul,ol.steps ol{margin-top:8px}

/* Callouts */
.callout{border:1px solid var(--line);border-left:4px solid #2c5fa8;background:#f5f8fd;border-radius:12px;padding:14px 18px;margin:18px 0}
.callout>strong{display:block;color:var(--navy);font-size:14px;margin-bottom:4px}
.callout p:last-child,.callout ul:last-child{margin-bottom:0}
.callout.tip{border-left-color:#1f9a62;background:#f1faf5}
.callout.warn{border-left-color:var(--orange);background:#fff6f0}
.callout.new{border-left-color:#7a4fd0;background:#f6f2fd}

/* Inline */
.path{display:inline;font-weight:700;color:var(--navy);background:var(--soft);padding:1px 7px;border-radius:6px;font-size:.93em;white-space:nowrap}
table.t .path{white-space:normal}
.ui{font-weight:700;color:var(--navy)}
code{font-family:Consolas,"SFMono-Regular",Menlo,monospace;font-size:.88em;background:var(--code);border:1px solid #e3e9f1;padding:1px 6px;border-radius:5px;word-break:break-word}
pre{background:#0d1f3a;color:#e4ecf7;border-radius:12px;padding:16px 18px;overflow:auto;font-size:13px;line-height:1.55;margin:14px 0 20px}
pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit;word-break:normal}
kbd{font-family:inherit;font-size:.82em;font-weight:700;background:#fff;border:1px solid #ccd8e5;border-bottom-width:2px;border-radius:5px;padding:1px 6px;color:var(--navy)}
.badge{display:inline-block;vertical-align:middle;margin-left:8px;font-size:11px;font-weight:800;letter-spacing:.04em;color:#fff;background:var(--orange);padding:3px 9px;border-radius:99px;line-height:1.4;position:relative;top:-2px}
h3 .badge{font-size:10.5px}

/* Tables */
.table-wrap{overflow-x:auto;margin:12px 0 22px;border:1px solid var(--line);border-radius:12px}
table.t{width:100%;border-collapse:collapse;font-size:14.5px;background:#fff}
table.t th{background:var(--bg);color:var(--navy);text-align:left;font-size:12.5px;letter-spacing:.03em;text-transform:uppercase;padding:11px 14px;border-bottom:1px solid var(--line)}
table.t td{padding:11px 14px;border-bottom:1px solid #eef2f7;vertical-align:top}
table.t tr:last-child td{border-bottom:0}
table.t td:first-child{min-width:140px}

/* Figures */
figure{margin:20px 0 24px}
figure img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:14px;box-shadow:0 10px 34px rgba(11,44,90,.08)}
figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:9px}

/* Link cards */
.cards.three{grid-template-columns:repeat(3,1fr)}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:14px 0 24px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:0 6px 24px rgba(11,44,90,.04);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--orange);transform:translateY(-1px)}
.card h4{margin:0 0 4px!important;color:var(--navy);font-size:15.5px}
.card p{margin:0!important;color:var(--muted);font-size:13.5px!important}

/* Prev / next + feedback */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:54px;padding-top:26px;border-top:1px solid var(--line)}
.pager a{display:block;border:1px solid var(--line);border-radius:14px;padding:14px 18px;border-bottom-width:1px!important}
.pager a:hover{border-color:var(--orange)}
.pager small{display:block;font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--orange)}
.pager b{color:var(--navy);font-size:15px}
.pager .next{text-align:right;grid-column:2}
.help-box{margin-top:26px;background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:18px 20px;font-size:14px;color:var(--muted)}
.help-box b{color:var(--navy)}
.help-box a{color:var(--orange)!important;font-weight:700;border:0!important}

/* On this page */
.toc{position:sticky;top:112px;max-height:calc(100vh - 130px);overflow:auto;font-size:13px}
.toc h6{margin:4px 0 10px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.toc a{display:block;padding:5px 0 5px 12px;border-left:2px solid var(--line);color:#5a6d85;line-height:1.4}
.toc a:hover{color:var(--navy)}
.toc a.on{border-left-color:var(--orange);color:var(--orange);font-weight:700}

/* Docs home */
.docs-hero{background:linear-gradient(#fff,#f5f8fc);border-bottom:1px solid var(--line);padding:64px 0 56px}
.docs-hero .eyebrow{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}
.docs-hero .eyebrow:before{content:"";display:inline-block;width:28px;height:2px;background:var(--orange);vertical-align:middle;margin-right:9px}
.docs-hero h1{font-size:clamp(38px,5vw,60px);line-height:1.04;letter-spacing:-.045em;color:var(--navy);margin:16px 0 14px}
.docs-hero h1 span{color:var(--orange)}
.docs-hero p{font-size:18px;color:#53677f;max-width:700px;margin:0 0 26px}
.docs-hero .search{max-width:620px}
.docs-hero .search input{padding:15px 16px 15px 42px;font-size:16px;border-radius:12px;background-position:15px center;box-shadow:0 12px 34px rgba(11,44,90,.08)}
.paths{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:40px 0 10px}
.path-card{display:block;background:var(--navy);color:#fff;border-radius:18px;padding:24px;position:relative;overflow:hidden}
.path-card:after{content:"";position:absolute;width:160px;height:160px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-60px;bottom:-70px}
.path-card small{color:#ffb98f;font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
.path-card h3{margin:6px 0 6px;font-size:20px}
.path-card p{margin:0;color:#c9d6e6;font-size:14px}
.path-card:hover{background:#123f78}
.groups{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:34px 0 0}
.group{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;box-shadow:0 7px 30px rgba(11,44,90,.045)}
.group .gi{width:42px;height:42px;border-radius:12px;background:var(--soft);color:var(--navy);display:grid;place-items:center;margin-bottom:14px}
.group .gi svg{width:21px;height:21px}
.group h3{margin:0 0 10px;color:var(--navy);font-size:18px}
.group ul{list-style:none;margin:0;padding:0}
.group li a{display:block;padding:5px 0;font-size:14px;color:#40536c;border-bottom:1px dashed transparent}
.group li a:hover{color:var(--orange)}
.home-sec{padding:56px 0}
.home-sec.alt{background:var(--bg)}
.home-sec h2{font-size:clamp(26px,3vw,36px);letter-spacing:-.03em;color:var(--navy);margin:8px 0 10px}
.home-sec .kicker{color:var(--orange);font-size:12px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}

/* Footer */
footer.site{background:#081f40;color:#c2cfdf;padding:30px 0}
.foot{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:12px}
.foot img{height:35px;width:auto}
.foot a{color:#fff}

/* Responsive */
@media(max-width:1240px){header.site nav{gap:15px;font-size:13px}.logo{height:62px}}
@media(max-width:1100px){header.site nav a:not(.nav-cta):not(.active){display:none}}
@media(max-width:1180px){.docs{grid-template-columns:250px minmax(0,1fr)}.toc{display:none}}
@media(max-width:900px){
  header.site nav a:not(.nav-cta){display:none}
  .logo{height:58px}.nav{height:80px}
  html{scroll-padding-top:150px}
  .menu-btn{display:inline-block}
  .docs,.docs.no-toc{grid-template-columns:1fr;padding-top:22px}
  .side{position:fixed;top:0;left:0;bottom:0;width:min(320px,86vw);max-height:none;background:#fff;z-index:60;padding:22px 18px;transform:translateX(-105%);transition:transform .2s;box-shadow:0 0 60px rgba(0,0,0,.2)}
  body.side-open .side{transform:none}
  body.side-open:after{content:"";position:fixed;inset:0;background:rgba(5,20,40,.45);z-index:50}
  .paths,.groups,.cards.three{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .container,.wide{width:calc(100% - 32px)}
  .cards,.cards.three,.paths,.groups,.pager{grid-template-columns:1fr}
  .pager .next{grid-column:1}
  .foot{flex-direction:column;align-items:flex-start}
  .docs-bar .ver{display:none}
  .docs-bar .crumbs .grp,.docs-bar .crumbs .grp+.sep{display:none}
  article.doc h2{font-size:22px}
  ol.steps>li{padding-left:44px}
  .logo{height:44px}
  .nav-cta{padding:7px 11px;font-size:13px}
  header.site nav{gap:12px}
}
@media print{header.site,.docs-bar,.side,.toc,.pager,.help-box,footer.site{display:none}.docs{display:block}}