/* Quaint — "workshop manual" theme.
   Graphite ink + safety amber + hazard stripes, faint blueprint grid,
   mono job numbers, left-rule task list. Sharp corners, no emoji. */

:root {
  --paper: #f3f1ea;
  --panel: #fbfaf5;
  --graphite: #23262b;
  --graphite-2: #2d3138;
  --ink: #1d2024;
  --muted: #5f6470;
  --faint: #8b909c;
  --line: #d9d5c8;
  --line-2: #bcb8a7;
  --amber: #e08a00;
  --amber-deep: #a86400;
  --amber-pale: #f4c66a;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(35,38,43,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(35,38,43,0.045) 1px, transparent 1px);
  background-size: 26px 26px;
}
.wrap { max-width: 1020px; margin: 0 auto; padding: 0 24px; }
a { color: var(--amber-deep); text-decoration: none; }
a:hover { color: var(--graphite); }

/* ---------- top bar ---------- */
.topbar { background: var(--graphite); }
.bar-row { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 14px 24px; }
.brand { display: inline-flex; align-items: baseline; gap: 9px; font-family: var(--mono); font-weight: 700; letter-spacing: 0.22em; font-size: 18px; color: #fff; }
.brand:hover { color: var(--amber-pale); }
.brand-cog { width: 13px; height: 13px; background: var(--amber); box-shadow: 5px 0 0 -1px var(--graphite), 5px 0 0 0 var(--amber); align-self: center; }
.brand-sub { font-family: var(--mono); font-weight: 400; font-size: 11px; letter-spacing: 0.18em; color: var(--amber); text-transform: uppercase; }
.nav { display: flex; flex-wrap: wrap; gap: 16px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.09em; text-transform: uppercase; }
.nav a { color: #d7d5cd; }
.nav a:hover { color: var(--amber-pale); }
.hazard { height: 8px; background: repeating-linear-gradient(45deg, var(--amber) 0 14px, var(--graphite) 14px 28px); }

/* ---------- hero ---------- */
.hero { padding: 46px 0 20px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--amber-deep); margin: 0 0 12px; }
.hero h1 { font-size: 37px; line-height: 1.12; margin: 0 0 14px; letter-spacing: -0.01em; color: var(--graphite); }
.hero-sub { color: var(--muted); max-width: 48em; font-size: 18px; margin: 0; }

/* ---------- chapter ---------- */
.chapter { padding: 30px 0 6px; border-top: 1px solid var(--line-2); }
.chapter-head { display: flex; align-items: baseline; gap: 12px; }
.chapter-no { font-family: var(--mono); font-size: 13px; color: #fff; background: var(--graphite); padding: 2px 8px; letter-spacing: 0.08em; }
.chapter-no.big { font-size: 15px; padding: 4px 11px; }
.chapter-head h2 { margin: 0; font-size: 23px; }
.chapter-head h2 a { color: var(--graphite); }
.chapter-head h2 a:hover { color: var(--amber-deep); }
.chapter-count { font-family: var(--mono); font-size: 12px; color: var(--faint); margin-left: auto; }
.chapter-blurb { color: var(--muted); margin: 8px 0 18px; max-width: 48em; }
.chapter-blurb.big { font-size: 18px; }
.chapter-intro { padding: 34px 0 6px; }
.chapter-intro h1 { margin: 12px 0 8px; font-size: 32px; color: var(--graphite); }

/* ---------- job list ---------- */
.joblist { display: flex; flex-direction: column; gap: 8px; padding-bottom: 8px; }
.jobrow {
  display: flex; align-items: center; gap: 16px;
  background: var(--panel); border: 1px solid var(--line);
  border-left: 4px solid var(--amber); padding: 13px 16px; color: var(--ink);
}
.jobrow:hover { border-left-color: var(--graphite); background: #fff; }
.jobrow-no { font-family: var(--mono); font-size: 13px; color: var(--amber-deep); min-width: 46px; letter-spacing: 0.04em; }
.jobrow-main { display: flex; flex-direction: column; }
.jobrow-name { font-weight: 600; font-size: 16px; }
.jobrow-meta { font-family: var(--mono); font-size: 12px; color: var(--muted); letter-spacing: 0.02em; }
.jobrow-go { margin-left: auto; color: var(--faint); font-size: 20px; }
.jobrow:hover .jobrow-go { color: var(--amber-deep); }
.empty { color: var(--faint); font-style: italic; margin: 4px 0 18px; padding-left: 4px; }

/* ---------- article ---------- */
.crumbs { font-family: var(--mono); font-size: 13px; color: var(--faint); padding: 30px 0 6px; }
.crumbs a { color: var(--amber-deep); }
.crumbs span { margin: 0 8px; color: var(--line-2); }
.jobcard { padding: 0 0 60px; }
.jobhead { border-bottom: 3px solid var(--graphite); padding-bottom: 16px; margin-bottom: 22px; }
.job-stamp { display: inline-block; font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: #fff; background: var(--amber-deep); padding: 3px 10px; margin-bottom: 12px; }
.jobhead h1 { font-size: 33px; line-height: 1.14; margin: 0; color: var(--graphite); letter-spacing: -0.01em; }
.jobhead h1 .zh { display: block; font-size: 16px; font-weight: 400; color: var(--faint); margin-top: 6px; letter-spacing: 0; }

.specsheet { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); margin: 0 0 34px; }
.spec { background: var(--panel); padding: 12px 14px; }
.spec-l { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); margin-bottom: 4px; }
.spec-v { display: block; font-weight: 600; font-size: 15px; color: var(--graphite); }

.step { margin: 0 0 30px; padding-left: 18px; border-left: 2px solid var(--line); }
.step-no { font-family: var(--mono); font-size: 13px; color: var(--amber-deep); margin-right: 10px; }
.step h2 { display: flex; align-items: baseline; font-size: 21px; margin: 0 0 10px; color: var(--graphite); }
.step-body p { margin: 0 0 14px; }
.step-body p:last-child { margin-bottom: 0; }

.related-box { border-top: 3px solid var(--graphite); padding-top: 20px; margin-top: 40px; }
.related-box h2 { font-size: 18px; margin: 0 0 14px; color: var(--graphite); font-family: var(--mono); letter-spacing: 0.04em; text-transform: uppercase; }
.related { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.related li { background: var(--panel); border: 1px solid var(--line); padding: 11px 15px; }
.related a { font-weight: 600; }
.related .soon { color: var(--faint); font-weight: 600; }
.related .soon em { font-family: var(--mono); font-style: normal; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; margin-left: 10px; color: var(--line-2); }

/* ---------- legal / 404 ---------- */
.legal { padding: 40px 0 60px; max-width: 800px; }
.legal h1 { font-size: 31px; margin: 4px 0 10px; color: var(--graphite); }
.legal h2 { font-size: 20px; margin: 26px 0 8px; color: var(--graphite); }
.legal p, .legal li { color: #3c4048; }
.legal ul { padding-left: 22px; }
.notfound { padding: 64px 0 90px; }
.notfound h1 { font-size: 34px; color: var(--graphite); margin: 4px 0 8px; }
.back { margin: 26px 0 0; font-family: var(--mono); font-size: 14px; }

/* ---------- footer ---------- */
.site-foot { background: var(--graphite); color: #d7d5cd; padding: 28px 0 36px; font-size: 14px; border-top: 8px solid var(--amber); }
.site-foot p { margin: 0 0 10px; max-width: 54em; }
.site-foot a { color: var(--amber-pale); }
.site-foot a:hover { color: #fff; }
.foot-links { font-family: var(--mono); display: flex; flex-wrap: wrap; gap: 10px; }
.foot-links span { color: #d7d5cd; opacity: 0.45; }
.foot-fine { font-family: var(--mono); font-size: 12px; opacity: 0.6; }

@media (max-width: 640px) {
  .hero h1 { font-size: 29px; }
  .jobhead h1 { font-size: 26px; }
  .bar-row { flex-direction: column; align-items: flex-start; }
  .chapter-count { margin-left: 0; }
}