:root{
  color-scheme: light;
  --ground:#FBF8F3; --paper:#FFFFFF; --ink:#1E2226; --mut:#4A5058; --faint:#6B7178;
  --teal:#1D5C63; --teal-dk:#123E43; --tint:#E6EFEF; --warm:#8A4F10; --warm-tint:#F7EEE3;
  --line:#D6D0C4; --line-dk:#C9C2B4; --ok:#2E6B3A; --bad:#9A2A1E;
  --serif:'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans:'Atkinson Hyperlegible', 'Segoe UI', Verdana, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55}
a{color:var(--teal)} a:hover{color:var(--teal-dk)}
:focus-visible{outline:3px solid var(--warm);outline-offset:2px;border-radius:3px}
[tabindex="-1"]:focus{outline:none}
.wrap{max-width:1040px;margin-inline:auto;padding-inline:20px}
.narrow{max-width:720px}
.sr-only{position:absolute;left:-9999px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--paper);padding:8px 12px;z-index:20}
.skip:focus{left:12px}

/* top bar */
.top{position:sticky;top:0;z-index:10;background:var(--ground);border-bottom:2px solid var(--ink)}
.top .wrap{display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;padding-block:12px}
.brand{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);margin-right:auto}
.brand small{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--teal)}
.brand b{font-family:var(--serif);font-size:21px;line-height:1.1}
nav.main{display:flex;flex-wrap:wrap;align-items:center;gap:4px 18px;font-size:15px}
nav.main a{text-decoration:none;color:var(--ink);padding:8px 0}
nav.main a:hover{color:var(--teal)}
nav.main a[aria-current="page"]{color:var(--teal);box-shadow:inset 0 -2px 0 var(--teal)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:10px 18px;border-radius:7px;font:inherit;font-size:16px;font-weight:700;text-decoration:none;cursor:pointer;border:1px solid var(--teal);background:var(--teal);color:#fff}
.btn:hover{background:var(--teal-dk);border-color:var(--teal-dk);color:#fff}
.btn.ghost{background:transparent;color:var(--teal)}
.btn.ghost:hover{background:var(--tint);color:var(--teal-dk)}
.btn.small{min-height:36px;padding:6px 12px;font-size:14px}
.btn[disabled]{opacity:.5;cursor:default}
nav.main .btn{padding:6px 14px;min-height:40px;color:#fff}

main{padding-block:10px 60px}
h1,h2,h3{font-family:var(--serif);line-height:1.15;text-wrap:balance}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--teal);margin:0}
section.block{padding-block:40px 8px}
section.block+section.block{border-top:1px solid var(--line)}
.block h2{font-size:30px;margin:4px 0 12px}
.block>p,.block .lede{max-width:44em}
.lede{font-size:19px}
.mut{color:var(--mut)}
.small{font-size:14.5px}

/* landing hero */
.hero{padding-block:44px 34px}
.hero h1{font-size:clamp(38px,6vw,60px);margin:8px 0 6px;letter-spacing:-.01em}
.hero .subtitle{font-family:var(--serif);font-size:clamp(20px,2.8vw,27px);color:var(--teal);margin:0 0 18px}
.hero .lede{max-width:36em;margin:0 0 22px}
.cta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta .note{font-size:14.5px;color:var(--mut)}

.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:6px}
.three>div{border-top:3px solid var(--teal);padding-top:10px}
.three b{font-family:var(--serif);font-size:19px}
.three p{margin:6px 0 0;font-size:15.5px;color:var(--mut)}

.who{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:10px}
.card{background:var(--paper);border:1px solid var(--line-dk);border-radius:10px;padding:16px 18px}
.card h3{font-size:19px;margin:0 0 6px}
.card p{margin:0;font-size:15.5px;color:var(--mut)}

/* model flow (static copy of the guide's diagram) */
.flow{list-style:none;margin:18px 0 0;padding:0;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));position:relative}
.flow::before{content:"";position:absolute;left:8%;right:8%;top:25px;border-top:3px solid var(--tint)}
.fl-step{position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;padding:0 8px}
.fl-num{width:50px;height:50px;border-radius:50%;background:var(--paper);border:3px solid var(--teal);color:var(--teal);font-weight:700;font-size:19px;display:flex;align-items:center;justify-content:center;position:relative}
.fl-step.last .fl-num{background:var(--teal);color:#fff}
.fl-name{font-family:var(--serif);font-weight:700;font-size:18px}
.fl-txt{font-size:15px;color:var(--mut);max-width:14em}

/* table of contents */
.layers{display:grid;gap:14px;margin-top:14px}
.layer{border-radius:12px;padding:14px 16px;border:1px solid var(--line-dk);background:var(--paper)}
.layer.personal{background:var(--tint);border-color:#BFD3D3}
.layer.mgmt{background:#FCF7F0;border-color:#E3CFB6}
.layer-tag{font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--teal)}
.layer.mgmt .layer-tag{color:var(--warm)}
.layer>p{margin:4px 0 10px;font-size:15px;color:var(--mut)}
.sers{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:8px}
details.ser{background:var(--paper);border:1px solid var(--line-dk);border-radius:8px}
details.ser summary{cursor:pointer;padding:10px 12px;list-style:none;min-height:44px}
details.ser summary::-webkit-details-marker{display:none}
details.ser summary b::before{content:"+";display:inline-block;width:16px;color:var(--teal)}
details.ser[open] summary b::before{content:"\2212"}
details.ser summary span{display:block;font-size:13px;color:var(--teal);font-weight:700;padding-left:16px}
details.ser ul{margin:0;padding:6px 14px 12px 30px;border-top:1px solid var(--line);font-size:14.5px}
details.ser li{padding:2px 0}
.code{font-weight:700;color:var(--teal);font-variant-numeric:tabular-nums}
.draft{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--warm);background:var(--warm-tint);border:1px solid #E3CFB6;border-radius:10px;padding:1px 8px;margin-left:6px;vertical-align:2px}

.care{background:var(--warm-tint);border:1px solid #E3CFB6;border-radius:10px;padding:16px 20px;max-width:46em}
.care h3{margin:0 0 6px;font-size:19px;color:var(--warm)}
.care ul{margin:6px 0 0;padding-left:20px}
.care li{margin:4px 0}

.starter{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);gap:24px;align-items:center}
.starter ul{margin:8px 0 18px;padding-left:20px}

/* forms */
form.req{display:grid;grid-template-columns:1fr 1fr;gap:14px 18px;max-width:720px;margin-top:14px}
.field{display:flex;flex-direction:column;gap:5px}
.field.full{grid-column:1 / -1}
.field label,.field legend{font-weight:700;font-size:15px}
.field .hint{font-size:13.5px;color:var(--mut);font-weight:400}
input[type=text],input[type=email],select,textarea{font:inherit;font-size:16px;padding:10px 12px;border:1px solid var(--line-dk);border-radius:7px;background:var(--paper);color:var(--ink);min-height:46px;width:100%}
textarea{min-height:96px;resize:vertical}
.check{display:flex;gap:10px;align-items:flex-start;font-size:15px}
.check input{width:20px;height:20px;margin-top:3px;flex:none}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.status{font-size:15px;min-height:1.3em}
.status.ok{color:var(--ok);font-weight:700}
.status.bad{color:var(--bad);font-weight:700}

.author{max-width:46em}

footer.site{border-top:1px solid var(--line);padding-block:22px 36px;color:var(--mut);font-size:14px}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:8px 22px;justify-content:space-between}
footer.site a{color:var(--mut)}

/* text pages */
.prose h1{font-size:40px;margin:30px 0 8px}
.prose h2{font-size:24px;margin:30px 0 8px}
.prose p,.prose li{max-width:40em}
.log h2{font-size:22px;border-top:1px solid var(--line);padding-top:22px}

@media (max-width:760px){
  body{font-size:16.5px}
  .three,.who,.starter{grid-template-columns:1fr}
  form.req{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr;gap:10px}
  .flow::before{left:24px;right:auto;top:20px;bottom:20px;border-top:0;border-left:3px solid var(--tint)}
  .fl-step{display:grid;grid-template-columns:50px minmax(0,1fr);column-gap:12px;text-align:left;align-items:center;padding:0}
  .fl-num{grid-row:1 / span 2}
  .fl-txt{max-width:none}
  .top{position:static}
  nav.main{gap:2px 14px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}