:root{
  --paper:#f6f2e9; --surface:#fffdf8; --ink:#1d1b17; --muted:#655f54; --line:#ddd5c4;
  --kraft:#b98a4e; --accent:#c2431f; --accent-ink:#fff; --soft:#efe8d9;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#17150f; --surface:#201d16; --ink:#f1ebdf; --muted:#aba292; --line:#3a352a;
    --kraft:#caa06a; --accent:#ee7a55; --accent-ink:#17150f; --soft:#28241b;}
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.65}
img,svg{max-width:100%}
a{color:var(--accent);text-underline-offset:3px}
a:hover{text-decoration-thickness:2px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:3px}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--surface);padding:8px 12px;z-index:10}

/* header */
.site-header{border-bottom:1px solid var(--line);background:var(--paper);position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-family:var(--serif);font-size:1.15rem;letter-spacing:.01em}
.brand b{font-weight:700}
.logo-mark{width:28px;height:28px;flex:none}
.site-header nav{display:flex;gap:22px}
.site-header nav a{color:var(--ink);text-decoration:none;font-size:.95rem;font-weight:500}
.site-header nav a:hover{color:var(--accent)}

/* hero */
.hero{padding:72px 0 64px;border-bottom:1px solid var(--line);
  background:repeating-linear-gradient(135deg,transparent 0 22px,color-mix(in srgb,var(--kraft) 9%,transparent) 22px 23px)}
.kicker{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 14px}
.hero h1{font-family:var(--serif);font-weight:600;font-size:clamp(2.1rem,6vw,3.6rem);line-height:1.08;margin:0 0 20px;max-width:17ch;text-wrap:balance}
.hero-sub{font-size:1.15rem;color:var(--muted);max-width:58ch;margin:0 0 28px}
.btn{display:inline-block;background:var(--ink);color:var(--paper);padding:13px 22px;border-radius:4px;text-decoration:none;font-weight:600}
.btn:hover{background:var(--accent);color:var(--accent-ink)}

/* sections + cards */
.section-title{font-family:var(--serif);font-weight:600;font-size:1.7rem;margin:56px 0 22px}
.cards{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(270px,1fr))}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-top:4px solid var(--kraft);border-radius:4px;padding:22px;text-decoration:none;color:var(--ink);transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-top-color:var(--accent)}
.card h3{font-family:var(--serif);font-weight:600;font-size:1.25rem;line-height:1.25;margin:12px 0 10px}
.card p{margin:0 0 16px;color:var(--muted);font-size:.97rem}
.card .more{margin-top:auto;font-size:.88rem;font-weight:600;color:var(--accent)}
.tag{align-self:flex-start;display:inline-block;font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--muted);border:1px solid var(--line);padding:3px 8px;border-radius:2px}
.grid4{display:grid;gap:0;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));border:1px solid var(--line);background:var(--surface);border-radius:4px}
.grid4>div{padding:22px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);margin:0 -1px -1px 0}
.grid4 h3{font-family:var(--serif);margin:0 0 6px;font-size:1.15rem}
.grid4 p{margin:0;color:var(--muted);font-size:.95rem}
.principles .after{color:var(--muted);margin:20px 0 72px}

/* article */
.article{padding-top:28px;padding-bottom:24px}
.narrow{max-width:760px}
.crumbs{font-size:.86rem;color:var(--muted)}
.crumbs a{color:var(--muted)}
.article-head{padding:18px 0 26px;border-bottom:1px solid var(--line);margin-bottom:30px}
.article-head h1{font-family:var(--serif);font-weight:600;font-size:clamp(1.9rem,4.6vw,2.9rem);line-height:1.12;margin:14px 0 14px;max-width:30ch;text-wrap:balance}
.meta{color:var(--muted);font-size:.9rem;margin:0}
.layout{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}
@media (min-width:940px){
  .layout{grid-template-columns:240px minmax(0,720px);gap:56px}
  .toc{position:sticky;top:84px;align-self:start;max-height:calc(100vh - 110px);overflow:auto}
}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:16px 18px;font-size:.92rem}
.toc-title{margin:0 0 8px;font-weight:700;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.toc ol{margin:0;padding-left:1.2em}
.toc li{margin:6px 0}
.toc a{color:var(--ink);text-decoration:none}
.toc a:hover{color:var(--accent);text-decoration:underline}

.prose{min-width:0}
.prose>*:first-child{margin-top:0}
.prose p,.prose ul,.prose ol{margin:0 0 1.1em}
.prose li{margin:.35em 0}
.prose h2{font-family:var(--serif);font-weight:600;font-size:1.65rem;line-height:1.2;margin:2em 0 .6em;scroll-margin-top:80px}
.prose h3{font-size:1.14rem;line-height:1.3;margin:1.6em 0 .4em}
.lede{font-size:1.18rem;line-height:1.55}
.answer{background:var(--surface);border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:4px;padding:18px 20px;margin:1.6em 0}
.answer p{margin:0}
.answer .answer-tag,.template-title{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--accent);margin:0 0 6px}
.template{background:var(--soft);border:1px dashed var(--kraft);border-radius:4px;padding:18px 20px;margin:1.4em 0}
.template ol{margin:0;padding-left:1.3em}
.table-wrap{overflow-x:auto;margin:1.3em 0;border:1px solid var(--line);border-radius:4px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:520px;font-size:.95rem}
th,td{text-align:left;vertical-align:top;padding:11px 14px;border-bottom:1px solid var(--line)}
th{background:var(--soft);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
tr:last-child td{border-bottom:0}
.faq details{border-bottom:1px solid var(--line);padding:14px 0}
.faq summary{cursor:pointer;font-weight:600}
.faq details p{margin:.6em 0 0;color:var(--muted)}
.related{padding-bottom:72px}
.related h2{font-family:var(--serif);font-weight:600;font-size:1.5rem;margin:40px 0 18px;padding-top:32px;border-top:1px solid var(--line)}

/* footer */
.site-footer{border-top:1px solid var(--line);background:var(--surface);padding:40px 0 22px;font-size:.93rem}
.foot{display:grid;gap:28px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.foot p{color:var(--muted);max-width:36ch;margin:10px 0 0}
.foot nav{display:grid;gap:8px;align-content:start}
.foot nav a{color:var(--ink)}
.copy{color:var(--muted);margin-top:28px;font-size:.85rem}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}

/* images, quotes and pages without a table of contents */
.prose figure{margin:1.7em 0}
.prose img{height:auto;display:block;border-radius:4px;border:1px solid var(--line)}
.prose figcaption{font-size:.88rem;color:var(--muted);margin-top:.55em}
.prose blockquote{margin:1.4em 0;padding:2px 0 2px 18px;border-left:4px solid var(--kraft);color:var(--muted)}
@media (min-width:940px){.layout.no-toc{grid-template-columns:minmax(0,720px)}}

/* all-guides button, footer columns */
.all{margin:26px 0 0}
.btn.ghost{background:transparent;color:var(--ink);border:2px solid var(--ink);padding:11px 20px}
.btn.ghost:hover{background:var(--ink);color:var(--paper)}
.foot-title{font-weight:700;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 4px}
.gap{height:72px}
.site-header nav{gap:18px}
.prose{overflow-wrap:break-word}
.bar{flex-wrap:wrap;padding-block:8px;gap:4px 16px}
@media (max-width:480px){.site-header nav{gap:14px}.site-header nav a{font-size:.9rem}.brand{font-size:1.05rem}}

.prose code{background:var(--soft);padding:1px 5px;border-radius:3px;font-size:.92em}
.prose h4{font-size:1.02rem;margin:1.4em 0 .3em}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0}