:root{
  --paper:#F6F8FA;--surface:#FFFFFF;--ink:#12202E;--muted:#4F5F6F;--line:#D5DCE3;
  --blue:#1D5C8C;--on-blue:#FFFFFF;--ok:#1E6B4F;--ok-bg:#E1F1E8;--flag:#9A4A00;--flag-bg:#FFEFC9;--code:#EDF1F5;
  --serif:"Literata",Georgia,"Times New Roman",serif;
  --mono:"IBM Plex Mono",ui-monospace,Consolas,"Courier New",monospace;
}
@media (prefers-color-scheme:dark){:root{
  --paper:#0F1923;--surface:#16222E;--ink:#E6ECF2;--muted:#9FB0C0;--line:#263646;
  --blue:#6DB3E8;--on-blue:#0B1722;--ok:#6FD1A4;--ok-bg:#15372B;--flag:#F5B658;--flag-bg:#40300F;--code:#111C27;
}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:400 18px/1.7 var(--serif);font-optical-sizing:auto}
a{color:var(--blue);text-underline-offset:.18em;text-decoration-thickness:1px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:2px}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}
.wide{max-width:1080px}

/* header */
header.site{border-bottom:1px solid var(--line);background:var(--surface)}
header.site .wrap{max-width:1080px;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 20px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:600 19px/1 var(--serif);letter-spacing:-.01em}
.mark{font:500 12px/1 var(--mono);color:var(--blue);border:1.5px solid var(--blue);border-radius:4px;padding:5px 6px}
header.site nav{display:flex;align-items:center;gap:20px;font:500 15px/1 var(--serif)}
header.site nav a{color:var(--muted);text-decoration:none}
header.site nav a:hover{color:var(--ink);text-decoration:underline}
header.site nav a.nav-cta{color:var(--on-blue);background:var(--blue);padding:10px 14px;border-radius:6px}
header.site nav a.nav-cta:hover{text-decoration:none;filter:brightness(1.08)}
@media(max-width:640px){header.site nav a:not(.nav-cta){display:none}}

/* type */
h1{font:600 clamp(2rem,4.4vw,3.1rem)/1.12 var(--serif);letter-spacing:-.02em;margin:44px 0 16px}
h2{font:600 1.55rem/1.25 var(--serif);letter-spacing:-.01em;margin:44px 0 10px}
h3{font:600 1.15rem/1.3 var(--serif);margin:28px 0 6px}
p{margin:0 0 1em}
.lead{font-size:1.2rem;line-height:1.6;color:var(--muted);max-width:60ch}
.status{font:400 15px/1.5 var(--serif);color:var(--muted);border-left:3px solid var(--line);padding:2px 0 2px 12px;margin:0 0 28px;max-width:62ch}
code{font:400 .86em var(--mono);background:var(--code);padding:.1em .35em;border-radius:3px}
ul,ol{padding-left:1.3em}li{margin:.35em 0}

/* prompt + output blocks */
pre{position:relative;background:var(--code);border:1px solid var(--line);border-radius:6px;padding:16px 16px 14px;overflow-x:auto;white-space:pre-wrap;font:400 14px/1.55 var(--mono);margin:14px 0 22px}
pre .copy{position:absolute;top:8px;right:8px;font:500 12px/1 var(--mono);background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:4px;padding:6px 9px;cursor:pointer}
pre .copy:hover{border-color:var(--blue);color:var(--blue)}
pre.has-copy{padding-top:40px}

/* steps and checklists */
.checklist{list-style:none;padding:0}
.checklist li{padding:7px 0 7px 30px;position:relative;border-bottom:1px solid var(--line);margin:0}
.checklist li:before{content:"";position:absolute;left:2px;top:12px;width:15px;height:15px;border:1.5px solid var(--muted);border-radius:3px}

/* notes */
.warn{border-left:4px solid var(--flag);background:var(--surface);border-radius:0 6px 6px 0;padding:12px 16px;margin:26px 0}
.warn strong:first-child{color:var(--flag)}

/* signup */
form.signup{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 6px;max-width:520px}
form.signup input[type=email]{flex:1;min-width:220px;padding:13px 14px;border:1px solid var(--muted);border-radius:6px;font:400 16px var(--serif);background:var(--surface);color:var(--ink)}
form.signup button{padding:13px 20px;border:0;border-radius:6px;background:var(--blue);color:var(--on-blue);font:600 16px var(--serif);cursor:pointer}
form.signup button:hover{filter:brightness(1.08)}
.fine{font-size:14px;color:var(--muted);margin:0}

/* home hero */
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center;padding:56px 0 40px}
.hero h1{margin-top:0;font-size:clamp(1.9rem,3.6vw,2.7rem)}
@media(max-width:900px){.hero{grid-template-columns:1fr;gap:32px;padding-top:36px}}

/* annotated document */
.doc{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:0 1px 0 var(--line);overflow:hidden}
.doc-bar{display:flex;justify-content:space-between;gap:12px;padding:10px 16px;border-bottom:1px solid var(--line);font:400 12px/1.4 var(--mono);color:var(--muted)}
.doc-body{padding:6px 16px 14px}
.row{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);gap:18px;padding:12px 0;border-bottom:1px dashed var(--line)}
.row:last-child{border-bottom:0}
.row p{margin:0;font-size:16px;line-height:1.55}
.src{font:500 11.5px/1 var(--mono);color:var(--ok);background:var(--ok-bg);border-radius:3px;padding:3px 6px;margin-left:6px;white-space:nowrap}
mark.flag{background:linear-gradient(var(--flag-bg),var(--flag-bg)) no-repeat left/100% 100%;color:inherit;border-bottom:2px solid var(--flag);padding:0 2px}
.cm{position:relative;margin:0;padding-left:14px;border-left:3px solid var(--flag);font:400 14px/1.5 var(--serif);color:var(--muted)}
.cm b{color:var(--flag);font-weight:600}
.cm.ok{border-left-color:var(--ok)}
.cm.ok b{color:var(--ok)}
.doc figcaption,.doc-cap{padding:10px 16px 14px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
@media(max-width:560px){.row{grid-template-columns:1fr;gap:8px}}
@media(prefers-reduced-motion:no-preference){
  mark.flag{animation:sweep .9s ease-out both}
  .row:nth-child(2) mark.flag{animation-delay:.5s}.row:nth-child(3) mark.flag{animation-delay:1.1s}.row:nth-child(4) mark.flag{animation-delay:1.7s}
  .row .cm{animation:rise .5s ease-out both}
  .row:nth-child(2) .cm{animation-delay:1s}.row:nth-child(3) .cm{animation-delay:1.6s}.row:nth-child(4) .cm{animation-delay:2.2s}
}
@keyframes sweep{from{background-size:0% 100%}to{background-size:100% 100%}}
@keyframes rise{from{opacity:0}to{opacity:1}}

/* workflow table */
.sect{padding-top:28px;padding-bottom:28px}
table.workflows{width:100%;border-collapse:collapse;font-size:16px;line-height:1.5;background:var(--surface);border:1px solid var(--line);border-radius:8px;overflow:hidden}
table.workflows caption{caption-side:top;text-align:left;font:500 14px/1.4 var(--mono);color:var(--muted);padding:0 0 10px}
table.workflows th{text-align:left;font:600 14px/1.3 var(--serif);color:var(--muted);padding:10px 14px;border-bottom:2px solid var(--ink);background:var(--paper)}
table.workflows td{padding:14px;border-bottom:1px solid var(--line);vertical-align:top}
table.workflows tr:last-child td{border-bottom:0}
table.workflows td:first-child{font-weight:600;min-width:14ch}
table.workflows td:last-child{font-size:14.5px;color:var(--muted)}
@media(max-width:760px){
  table.workflows thead{position:absolute;left:-9999px}
  table.workflows,table.workflows tbody,table.workflows tr,table.workflows td{display:block;width:100%}
  table.workflows tr{padding:12px 14px;border-bottom:1px solid var(--line)}
  table.workflows td{border:0;padding:3px 0}
  table.workflows td[data-label]:before{content:attr(data-label) ": ";font-weight:600;color:var(--muted);font-size:14px}
  table.workflows td:first-child{font-size:17px}
}

/* checks list */
.checks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;margin:12px 0 0}
.checks h3{margin-top:0}
.checks p{color:var(--muted);font-size:16px;margin:0}
@media(max-width:820px){.checks{grid-template-columns:1fr;gap:18px}}

/* signup band */
.band{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin:36px 0 0;padding:44px 0}
.band .inner{max-width:640px}

/* corrections log */
.log{list-style:none;padding:0}
.log li{padding:14px 0;border-bottom:1px solid var(--line);margin:0}
.log time{font:500 13px/1 var(--mono);color:var(--muted);display:block;margin-bottom:6px}

footer{border-top:1px solid var(--line);margin-top:56px;padding:26px 0 40px;color:var(--muted);font:400 14px/1.6 var(--serif)}
footer .wrap{max-width:1080px}
main.wrap>footer{display:none}