/* Leaved — woodworking workshop. Sharp-edged, blueprint-on-timber look. */
:root {
  --bg: #f3eee3;          /* sawdust */
  --bg-soft: #ece4d3;
  --card: #fcf9f2;
  --ink: #2c241b;         /* walnut */
  --muted: #7c6b57;
  --accent: #8a5a2b;      /* oak */
  --accent-ink: #5b3a1a;
  --moss: #4f6b3a;        /* forest */
  --line: #d8cbb4;
  --line-strong: #b9a98c;
  --mono: "SF Mono", "Consolas", "Menlo", monospace;
  --serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  background-image: repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(138,90,43,.05) 40px),
                    repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(138,90,43,.05) 40px);
  line-height: 1.65;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }

a { color: var(--accent-ink); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent); }

/* Header */
.site-header {
  background: var(--card);
  border-bottom: 3px solid var(--accent);
  border-image: repeating-linear-gradient(90deg, var(--accent) 0 18px, transparent 18px 26px) 1;
  position: sticky; top: 0; z-index: 10;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding-top: 14px; padding-bottom: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; }
.brand-mark { color: var(--accent); display: inline-flex; }
.brand-text { font-family: var(--serif); font-size: 22px; font-weight: 700; letter-spacing: .5px; line-height: 1; display: inline-flex; flex-direction: column; }
.brand-sub { font-family: var(--mono); font-size: 10px; font-weight: 400; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); margin-top: 3px; }
.site-nav { display: flex; flex-wrap: wrap; gap: 4px; }
.nav-link { font-family: var(--mono); font-size: 12px; letter-spacing: .5px; text-transform: uppercase; padding: 6px 10px; color: var(--ink); text-decoration: none; border: 1px solid transparent; }
.nav-link:hover { border-color: var(--line-strong); color: var(--accent-ink); }
.nav-link.is-active { border-color: var(--accent); color: var(--accent-ink); background: var(--bg-soft); }

/* Hero */
.hero { padding: 46px 0 30px; border-bottom: 1px solid var(--line); }
.hero-kicker { font-family: var(--mono); font-size: 12px; letter-spacing: 3px; text-transform: uppercase; color: var(--moss); margin-bottom: 12px; }
.hero-title { font-family: var(--serif); font-size: clamp(30px, 5vw, 46px); line-height: 1.1; font-weight: 700; max-width: 18ch; }
.hero-lede { max-width: 60ch; margin-top: 16px; color: var(--muted); font-size: 17px; }
.hero-rule { margin-top: 26px; height: 6px; background: repeating-linear-gradient(90deg, var(--accent) 0 22px, transparent 22px 30px); }

/* Sections */
.section-label { font-family: var(--mono); font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--moss); margin: 34px 0 14px; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 22px; }
.chip { font-family: var(--mono); font-size: 12px; padding: 7px 12px; border: 1px solid var(--line-strong); color: var(--ink); text-decoration: none; background: var(--card); }
.chip:hover { border-color: var(--accent); }
.chip.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; padding-bottom: 50px; }
.pcard { background: var(--card); border: 1px solid var(--line); border-top: 3px solid var(--accent); }
.pcard-link { display: block; padding: 20px; text-decoration: none; color: var(--ink); height: 100%; }
.pcard-num { font-family: var(--mono); font-size: 11px; letter-spacing: 2px; color: var(--moss); text-transform: uppercase; }
.pcard-title { font-family: var(--serif); font-size: 20px; line-height: 1.25; margin: 10px 0 8px; }
.pcard-link:hover .pcard-title { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; }
.pcard-desc { font-size: 14px; color: var(--muted); margin-bottom: 16px; }
.pcard-meta { display: flex; flex-wrap: wrap; gap: 6px; }

.badge { font-family: var(--mono); font-size: 11px; letter-spacing: .4px; padding: 3px 7px; border: 1px solid var(--line-strong); color: var(--muted); background: #fff; white-space: nowrap; }
.badge-key { color: var(--accent-ink); font-weight: 600; margin-right: 4px; }
.badge.b-diff { border-color: var(--accent); }
.badge.b-cat { border-color: var(--moss); }

/* Breadcrumb */
.crumb { font-family: var(--mono); font-size: 12px; color: var(--muted); margin: 22px 0 6px; }
.crumb a { color: var(--muted); text-decoration: none; }
.crumb a:hover { color: var(--accent-ink); text-decoration: underline; }
.crumb .sep { margin: 0 7px; color: var(--line-strong); }

/* Page titles */
.page-title { font-family: var(--serif); font-size: clamp(26px, 4vw, 38px); line-height: 1.15; font-weight: 700; margin: 8px 0 8px; }
.page-blurb { color: var(--muted); max-width: 62ch; margin-bottom: 8px; }

/* Guide (topic) */
.guide { max-width: 760px; margin: 0 auto 50px; }
.guide-head { border-bottom: 2px solid var(--accent); padding: 6px 0 18px; margin-bottom: 8px; }
.guide-title { font-family: var(--serif); font-size: clamp(26px, 4.5vw, 40px); line-height: 1.12; font-weight: 700; margin-bottom: 14px; }
.guide-badges { display: flex; flex-wrap: wrap; gap: 8px; }

.sec { padding: 20px 0; border-bottom: 1px solid var(--line); }
.sec-heading { font-family: var(--serif); font-size: 21px; margin-bottom: 12px; display: flex; align-items: baseline; gap: 10px; }
.sec-num { font-family: var(--mono); font-size: 13px; color: var(--accent); letter-spacing: 1px; }
.sec p { margin-bottom: 14px; }
.sec p:last-child { margin-bottom: 0; }

.guide-related { margin-top: 30px; }
.rel-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.rel-card { display: block; border: 1px solid var(--line); background: var(--card); padding: 14px 16px; text-decoration: none; color: var(--ink); }
.rel-card:hover { border-color: var(--accent); }
.rel-card.is-drip { opacity: .6; border-style: dashed; }
.rel-title { display: block; font-family: var(--serif); font-size: 16px; }
.rel-meta { display: block; font-family: var(--mono); font-size: 11px; color: var(--muted); margin-top: 5px; letter-spacing: .4px; }

/* Legal */
.legal { max-width: 720px; margin: 0 auto 50px; }
.legal h2 { font-family: var(--serif); font-size: 20px; margin: 26px 0 10px; }
.legal p { margin-bottom: 14px; }

.notfound { padding: 50px 0 60px; }
.cta { display: inline-block; font-family: var(--mono); font-size: 13px; letter-spacing: 1px; text-transform: uppercase; background: var(--accent); color: #fff; padding: 11px 18px; text-decoration: none; margin-top: 18px; }
.cta:hover { background: var(--accent-ink); color: #fff; }

/* Footer */
.site-footer { background: var(--card); border-top: 3px solid var(--accent); margin-top: 20px; padding: 34px 0 40px; }
.foot-brand { font-family: var(--serif); font-size: 17px; font-weight: 700; }
.foot-links { margin: 12px 0; font-size: 14px; }
.foot-links .dot { color: var(--line-strong); margin: 0 6px; }
.foot-note { font-size: 13px; color: var(--muted); max-width: 62ch; }

@media (max-width: 640px) {
  .header-inner { flex-direction: column; align-items: flex-start; }
  .site-nav { gap: 2px; }
}