:root {
  --paper: #FAF9F7; --surface: #FFFFFF; --surface-2: #F3F1EC;
  --ink: #232323; --slate: #4A5157; --graphite: #63686D; --muted: #767B80; --stone: #8A8F94;
  --line: #E3E1DC; --line-strong: #C9C6C0;
  --accent: #26557A; --accent-tint: #EAF0F5; --accent-strong: #1C4462;
  --green: #1E6B45; --green-tint: #EAF3EE; --amber: #8A6100; --amber-tint: #F7F0E0;
  --maxw: 760px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: Inter, system-ui, -apple-system, "Segoe UI", sans-serif; line-height: 1.6; -webkit-font-smoothing: antialiased; }
.mono { font-family: "IBM Plex Mono", ui-monospace, Menlo, monospace; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.eyebrow { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 11px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--muted); }

/* nav */
header.nav { position: sticky; top: 0; z-index: 10; background: rgba(250,249,247,0.94); backdrop-filter: saturate(1.1) blur(6px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 12px; height: 60px; max-width: 1080px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand:hover { text-decoration: none; }
.brand .bar { width: 7px; height: 26px; background: var(--accent); border-radius: 1px; }
.brand .nm { font-weight: 700; font-size: 14px; letter-spacing: 0.04em; line-height: 1.1; color: var(--ink); }
.brand .nm span { font-weight: 400; }
.nav .spacer { flex: 1; }
.nav a.navlink { color: var(--slate); font-size: 13.5px; }
.btn { display: inline-block; background: var(--accent); color: #fff; font-size: 14px; font-weight: 500; padding: 9px 18px; border-radius: 2px; border: 1px solid var(--accent); }
.btn:hover { background: var(--accent-strong); border-color: var(--accent-strong); text-decoration: none; color: #fff; }

/* breadcrumb + article */
.crumb { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 11px; letter-spacing: 0.04em; color: var(--muted); padding: 22px 0 0; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--accent); }
.crumb .sep { color: var(--line-strong); margin: 0 6px; }

article { padding: 6px 0 40px; }
article .eyebrow { display: block; margin: 18px 0 12px; }
article h1 { font-size: clamp(28px, 4.4vw, 40px); line-height: 1.12; letter-spacing: -0.015em; font-weight: 700; margin: 0; text-wrap: balance; }
article .lead { font-size: 18px; line-height: 1.55; color: var(--ink); margin: 20px 0 0; font-weight: 500; }
article h2 { font-size: 20px; font-weight: 600; letter-spacing: -0.01em; margin: 36px 0 0; }
article h3 { font-size: 15px; font-weight: 600; margin: 22px 0 0; }
article p { font-size: 15.5px; color: var(--slate); margin: 12px 0 0; }
article ul { margin: 12px 0 0; padding-left: 20px; }
article li { font-size: 15px; color: var(--slate); margin-bottom: 7px; }
article strong { color: var(--ink); font-weight: 600; }
.accent-bar { width: 44px; height: 4px; background: var(--accent); margin: 20px 0 0; }

.honest { border-left: 3px solid var(--accent); background: var(--surface); padding: 14px 16px; margin: 22px 0 0; border-radius: 0 2px 2px 0; }
.honest .h { font-size: 10.5px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-strong); margin-bottom: 5px; }
.honest p { margin: 0; font-size: 14px; }

.deflist { border: 1px solid var(--line); border-radius: 2px; background: var(--surface); margin: 16px 0 0; }
.deflist .row { padding: 12px 16px; border-bottom: 1px solid var(--line); }
.deflist .row:last-child { border-bottom: none; }
.deflist .row .t { font-weight: 600; font-size: 14px; }
.deflist .row .d { font-size: 13.5px; color: var(--slate); margin-top: 2px; }

/* faq */
.faq { margin: 20px 0 0; }
.faq details { border: 1px solid var(--line); border-radius: 2px; background: var(--surface); margin-bottom: 8px; }
.faq summary { cursor: pointer; padding: 12px 16px; font-weight: 600; font-size: 14.5px; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; float: right; color: var(--accent); font-weight: 400; }
.faq details[open] summary::after { content: "\2212"; }
.faq .a { padding: 0 16px 14px; font-size: 14px; color: var(--slate); }

/* related */
.related { margin: 34px 0 0; border-top: 1px solid var(--line); padding-top: 20px; }
.related .h { font-size: 11px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--slate); margin-bottom: 10px; }
.related .links { display: flex; gap: 8px; flex-wrap: wrap; }
.related .links a { font-size: 13px; border: 1px solid var(--line); border-radius: 2px; padding: 6px 12px; background: var(--surface); color: var(--accent); }
.related .links a:hover { border-color: var(--accent); text-decoration: none; }

/* cta */
.cta { border-top: 1px solid var(--line); background: var(--surface); margin-top: 40px; }
.cta .wrap { padding: 40px 24px 44px; max-width: var(--maxw); }
.cta h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.01em; margin: 0; }
.cta p { font-size: 15px; color: var(--slate); margin: 10px 0 22px; max-width: 52ch; }

/* glossary hub grid */
.ghub { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 2px; overflow: hidden; margin: 24px 0 0; }
.ghub a { background: var(--surface); padding: 18px 18px 20px; display: block; color: var(--ink); }
.ghub a:hover { background: var(--accent-tint); text-decoration: none; }
.ghub a .t { font-weight: 600; font-size: 15px; color: var(--accent-strong); }
.ghub a .d { font-size: 13px; color: var(--slate); margin-top: 5px; }

footer { padding: 34px 0 46px; border-top: 1px solid var(--line); }
footer .row { max-width: 1080px; display: flex; gap: 16px; flex-wrap: wrap; align-items: center; font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: 11px; letter-spacing: 0.03em; color: var(--muted); }
footer .row .dot { color: var(--line-strong); }

@media (max-width: 640px) {
  .ghub { grid-template-columns: 1fr; }
  .nav a.navlink { display: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }