:root{
  --paper:#EAE8E0; --card:#F4F2EB; --ink:#181A1D; --ink2:#43454B; --muted:#89897F;
  --line:rgba(24,26,29,.20); --line2:rgba(24,26,29,.10); --grid:rgba(24,26,29,.045);
  --accent:#BC4A30; --accent2:#9C3A22; --kraft:#E2B884;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--paper);color:var(--ink2);font-family:'IBM Plex Sans',system-ui,sans-serif;line-height:1.7;font-size:16.5px;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:26px 26px}
a{color:var(--accent2);text-decoration:none}
a:hover{text-decoration:underline}
.serif{font-family:'Newsreader',Georgia,serif}
.mono{font-family:'IBM Plex Mono',monospace}

/* nav — matches the landing page */
nav{position:sticky;top:0;z-index:50;background:rgba(234,232,224,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
nav .in{max-width:760px;margin:0 auto;padding:0 24px;height:58px;display:flex;align-items:center;gap:14px}
nav .brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:17px;letter-spacing:.01em;text-transform:uppercase;color:var(--ink)}
nav .brand:hover{text-decoration:none}
nav .brand svg path{fill:none;stroke:var(--ink);stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
nav .cta{margin-left:auto;background:var(--ink);color:var(--paper);font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:12px;letter-spacing:.04em;text-transform:uppercase;padding:8px 15px;border:1px solid var(--ink);border-radius:2px;transition:.15s}
nav .cta:hover{text-decoration:none;background:var(--accent);border-color:var(--accent);color:#fff}

/* article */
.article{max-width:720px;margin:0 auto;padding:46px 24px 24px}
.crumb{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent2)}
.kicker{font-family:'IBM Plex Mono',monospace;font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
h1{font-family:'Newsreader',Georgia,serif;font-weight:500;font-size:clamp(32px,5.4vw,50px);line-height:1.04;letter-spacing:-.02em;color:var(--ink);margin:12px 0 14px}
.meta{font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--muted);margin-bottom:30px}
.lead{font-size:18.5px;color:var(--ink);margin-bottom:26px;line-height:1.55}
.article h2{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:23px;color:var(--ink);margin:38px 0 12px;letter-spacing:-.01em}
.article h3{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:18px;color:var(--ink);margin:28px 0 8px}
.article p{margin:0 0 18px}
.article ul,.article ol{margin:0 0 20px 4px;padding-left:22px}
.article li{margin:0 0 9px}
.article strong{color:var(--ink);font-weight:600}
.steps{counter-reset:s;list-style:none;padding-left:0}
.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:16px}
.steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:1px;width:30px;height:26px;
  background:var(--card);border:1px solid var(--ink);border-radius:2px;color:var(--ink);
  font-family:'IBM Plex Mono',monospace;font-size:12px;font-weight:600;display:flex;align-items:center;justify-content:center}
code{font-family:'IBM Plex Mono',monospace;font-size:.85em;background:var(--card);border:1px solid var(--line2);border-radius:2px;padding:2px 7px;color:var(--ink)}
pre{background:var(--ink);color:#D6D3C8;border:1px solid var(--ink);border-radius:2px;padding:18px 20px;overflow-x:auto;margin:0 0 22px;font-size:13.5px;line-height:1.85}
pre code{background:none;border:0;padding:0;color:inherit;font-size:13.5px}
pre .c{color:#7C7C74}
blockquote{border:1px solid var(--line2);border-left:2px solid var(--accent);background:var(--card);padding:14px 20px;margin:0 0 22px;font-size:15.5px;color:var(--ink2)}

/* the Mainspring callout — a kraft drawing sheet, like the hero */
.ms{margin:32px 0;background:var(--kraft);border:1px solid rgba(70,46,16,.32);border-radius:2px;padding:24px 26px;position:relative}
.ms::before,.ms::after{content:"";position:absolute;width:12px;height:12px;pointer-events:none}
.ms::before{top:-1px;left:-1px;border-top:1.5px solid #22190E;border-left:1.5px solid #22190E}
.ms::after{bottom:-1px;right:-1px;border-bottom:1.5px solid #22190E;border-right:1.5px solid #22190E}
.ms .h{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:18px;color:#22190E;margin-bottom:6px}
.ms .h svg path{fill:none;stroke:var(--accent2);stroke-width:6;stroke-linecap:round;stroke-linejoin:round}
.ms p{font-size:14.5px;color:#4A3A22;margin-bottom:14px}
.ms .b{display:inline-flex;align-items:center;gap:8px;background:#22190E;color:var(--kraft);font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:12.5px;letter-spacing:.04em;text-transform:uppercase;padding:11px 18px;border-radius:2px;transition:.15s}
.ms .b:hover{text-decoration:none;background:var(--accent);color:#fff}
.ms .note{font-family:'IBM Plex Mono',monospace;font-size:10.5px;letter-spacing:.05em;text-transform:uppercase;color:rgba(45,30,12,.6);margin:10px 0 0}

/* related */
.related{max-width:720px;margin:0 auto;padding:8px 24px 30px}
.related h2{font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:20px;color:var(--ink);margin-bottom:14px}
.related .g{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:560px){.related .g{grid-template-columns:1fr}}
.related a{display:block;background:var(--card);border:1px solid var(--line);border-radius:2px;padding:13px 16px;color:var(--ink);font-weight:500;font-size:14px;transition:.15s}
.related a:hover{text-decoration:none;background:#F7F5EE;border-color:var(--ink);transform:translateY(-1px)}

footer{border-top:1px solid var(--ink);margin-top:26px;padding:26px 24px;color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:11.5px;letter-spacing:.03em;text-align:center}
footer a{color:var(--ink2)}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}