:root{
  --bg:#f5f7fa; --surface:#ffffff; --ink:#0f1e33; --muted:#5a6779; --line:#dde3ea;
  --accent:#0b6e6e; --accent-ink:#ffffff; --accent-soft:#e1f1f0; --brass:#b27a1d; --ok:#1f7a3a; --ok-soft:#e3f3e7;
  --display:"Archivo",system-ui,sans-serif; --body:"IBM Plex Sans",system-ui,sans-serif; --mono:"IBM Plex Mono",ui-monospace,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0c1522; --surface:#132033; --ink:#e7edf5; --muted:#9aa8ba; --line:#24354d;
  --accent:#3fb8b0; --accent-ink:#06201f; --accent-soft:#123a3c; --brass:#e0a948; --ok:#6fd38c; --ok-soft:#13341f; color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0c1522; --surface:#132033; --ink:#e7edf5; --muted:#9aa8ba; --line:#24354d;
  --accent:#3fb8b0; --accent-ink:#06201f; --accent-soft:#123a3c; --brass:#e0a948; --ok:#6fd38c; --ok-soft:#13341f; color-scheme:dark}
*{box-sizing:border-box}
html{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.65}
.wrap{max-width:820px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
header{background:var(--surface);border-bottom:1px solid var(--line)}
header .wrap{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding-block:14px;max-width:1120px}
.logo{font-family:var(--display);font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.logo{display:flex;align-items:center;gap:10px}
.logo .mark{width:34px;height:34px;flex:none}
.logo .f{color:var(--accent)}
.logo-img{display:block;padding:4px 8px;background:#fff;border-radius:8px;isolation:isolate}
.logo-img img{display:block;width:170px;height:32px;max-width:none;object-fit:cover;mix-blend-mode:multiply}
header nav{display:flex;gap:18px;flex-wrap:wrap}
header nav a{color:var(--muted);text-decoration:none;font-weight:500;font-size:15px}
header nav a[aria-current]{color:var(--accent)}
main{padding-block:44px 56px}
h1,h2,h3{font-family:var(--display);line-height:1.2;text-wrap:balance}
h1{font-size:clamp(30px,4.5vw,42px);letter-spacing:-.02em;margin:0}
.updated{color:var(--muted);font-size:14px;margin:8px 0 0}
.lead{font-size:18px;color:var(--muted);margin-top:16px}
h2{font-size:22px;margin:40px 0 8px;padding-top:20px;border-top:1px solid var(--line)}
h3{font-size:17px;margin:22px 0 4px}
p,li{max-width:68ch}
ul,ol{padding-left:22px}
li{margin:4px 0}
a{color:var(--accent)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-top:28px}
.toc b{font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.toc ol{margin:8px 0 0;columns:2;column-gap:28px}
.toc li{break-inside:avoid;font-size:15px}
.box{background:var(--accent-soft);border-radius:12px;padding:16px 20px;margin:20px 0}
.box p{margin:0}
.fill{background:rgba(178,122,29,.15);color:var(--brass);font-family:var(--mono);font-size:.88em;padding:1px 5px;border-radius:4px}
.table-wrap{overflow-x:auto;margin:14px 0}
table{border-collapse:collapse;width:100%;font-size:15px;min-width:560px}
th,td{text-align:left;vertical-align:top;padding:10px 10px;border-bottom:1px solid var(--line)}
th{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.draft{border:1px dashed var(--brass);color:var(--brass);border-radius:10px;padding:10px 14px;font-size:14px;margin-top:18px}
footer{border-top:1px solid var(--line);background:var(--surface)}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:22px;font-size:13px;color:var(--muted);max-width:1120px}
footer nav{display:flex;gap:16px}
/* forms */
form.req{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px;display:grid;gap:16px;margin-top:20px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.req label{display:flex;flex-direction:column;gap:5px;font-weight:600;font-size:14px;min-width:0}
.req label span{font-weight:400;color:var(--muted);font-size:13px}
.req input,.req select,.req textarea{font:inherit;font-size:16px;font-weight:400;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 13px;width:100%}
.req textarea{min-height:96px;resize:vertical}
fieldset{border:0;padding:0;margin:0;display:grid;gap:8px}
legend{font-weight:600;font-size:14px;margin-bottom:6px}
.opt{display:flex;gap:10px;align-items:flex-start;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-weight:400 !important;font-size:15px !important;flex-direction:row !important}
.opt input{width:auto;margin-top:5px}
.check{flex-direction:row !important;align-items:flex-start;font-weight:400 !important;font-size:14.5px !important}
.check input{width:auto;margin-top:5px}
.btn{font:inherit;font-weight:600;background:var(--accent);color:var(--accent-ink);border:0;border-radius:10px;padding:13px 24px;cursor:pointer;justify-self:start}
.done{background:var(--ok-soft);color:var(--ok);border-radius:12px;padding:16px 20px;font-weight:500}
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin:22px 0;padding:0;list-style:none}
.steps li{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px;margin:0;min-width:0}
.steps b{display:block;font-family:var(--display);font-size:16px;margin-bottom:4px}
.steps small{color:var(--muted);font-size:14px;line-height:1.5;display:block}
@media (max-width:640px){.row,.steps{grid-template-columns:1fr}.toc ol{columns:1}}