/* Chapin & Bangs unified design system */
:root {
  --ink: oklch(0.18 0.01 250);
  --ink-2: oklch(0.32 0.01 250);
  --ink-3: oklch(0.50 0.01 250);
  --rule: oklch(0.86 0.005 250);
  --rule-2: oklch(0.92 0.005 250);
  --paper: oklch(0.985 0.003 80);
  --paper-2: oklch(0.965 0.005 80);
  --paper-3: oklch(0.94 0.006 80);
  --steel: oklch(0.34 0.06 250);
  --steel-deep: oklch(0.24 0.06 252);
  --steel-ink: oklch(0.18 0.04 252);
  --orange: oklch(0.66 0.16 50);
  --orange-deep: oklch(0.56 0.17 45);
  --navy: oklch(0.22 0.05 255);  /* Lindquist */
  --silver: oklch(0.78 0.01 250);
  --good: oklch(0.55 0.12 145);

  --f-display: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --f-text: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--f-text);
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.5;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--orange-deep); }
img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }

.wrap { max-width: 1320px; margin: 0 auto; padding: 0 32px; }
.wrap-narrow { max-width: 980px; margin: 0 auto; padding: 0 32px; }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: -0.018em;
  margin: 0;
  color: var(--ink);
  text-wrap: balance;
}
h1 { font-size: clamp(40px, 5.6vw, 76px); line-height: 1.02; letter-spacing: -0.028em; }
h2 { font-size: clamp(28px, 3.2vw, 44px); line-height: 1.06; letter-spacing: -0.022em; }
h3 { font-size: 22px; line-height: 1.2; }
h4 { font-size: 16px; line-height: 1.25; }
p  { margin: 0 0 1em; }
.lede { font-size: 21px; line-height: 1.45; color: var(--ink-2); max-width: 60ch; text-wrap: pretty; }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}
.mono { font-family: var(--f-mono); font-feature-settings: "tnum"; }
.tabular { font-variant-numeric: tabular-nums; }

/* ==== Top bar ==== */
.topbar {
  background: var(--steel-ink);
  color: oklch(0.92 0.01 250);
  font-size: 12.5px;
  font-family: var(--f-mono);
  letter-spacing: 0.04em;
}
.topbar-inner {
  display: flex; gap: 28px; align-items: center; justify-content: space-between;
  padding: 8px 32px; max-width: 1320px; margin: 0 auto;
}
.topbar a { color: oklch(0.92 0.01 250); }
.topbar a:hover { color: var(--orange); }
.topbar .pipe { opacity: 0.4; }

/* ==== Header ==== */
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: sticky; top: 0; z-index: 50;
}
.site-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px; max-width: 1320px; margin: 0 auto;
}
.logo {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--f-display);
}
.logo-mark {
  width: 40px; height: 40px;
  background: var(--steel-ink);
  color: var(--paper);
  display: grid; place-items: center;
  font-weight: 700; letter-spacing: -0.02em; font-size: 16px;
  font-family: var(--f-display);
  position: relative;
}
.logo-mark::after{
  content:""; position:absolute; inset: 4px; border: 1px solid oklch(0.55 0.04 250);
}
.logo-text { display: grid; line-height: 1.1; }
.logo-text .name { font-weight: 600; font-size: 17px; letter-spacing: -0.02em; }
.logo-text .sub { font-family: var(--f-mono); font-size: 10.5px; letter-spacing: 0.15em; text-transform: uppercase; color: var(--ink-3); }

nav.primary { display: flex; gap: 4px; align-items: center; }
nav.primary a {
  padding: 10px 14px;
  font-size: 14.5px;
  font-weight: 500;
  border-radius: 2px;
  color: var(--ink-2);
}
nav.primary a:hover { background: var(--paper-2); color: var(--ink); }
nav.primary a.active { color: var(--ink); }
nav.primary a.active::after {
  content:""; display:block; height: 2px; background: var(--orange); margin-top: 6px;
}

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px;
  font-weight: 500; font-size: 14.5px;
  border: 1px solid transparent;
  border-radius: 2px;
  text-decoration: none;
  transition: background .15s, color .15s, border-color .15s;
  font-family: var(--f-display);
  letter-spacing: -0.01em;
}
.btn-primary { background: var(--orange); color: var(--paper); }
.btn-primary:hover { background: var(--orange-deep); color: var(--paper); }
.btn-dark { background: var(--steel-ink); color: var(--paper); }
.btn-dark:hover { background: var(--steel); color: var(--paper); }
.btn-ghost { border-color: var(--rule); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-arrow::after { content: "→"; font-family: var(--f-mono); }

/* ==== Sections ==== */
section { padding: 88px 0; }
section.tight { padding: 56px 0; }
.section-head {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  align-items: end; margin-bottom: 40px;
}
.section-head h2 { max-width: 18ch; }
.section-head .desc { color: var(--ink-2); font-size: 17px; line-height: 1.5; max-width: 50ch; }

/* ==== Hero ==== */
.hero { padding: 24px 0 0; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px;
  padding: 64px 0 72px;
  border-bottom: 1px solid var(--rule);
}
.hero h1 { margin-bottom: 28px; }
.hero .lede { margin-bottom: 32px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 36px; }
.hero-meta {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px 32px;
  border-top: 1px solid var(--rule); padding-top: 28px;
  font-family: var(--f-mono); font-size: 13px;
}
.hero-meta dt { color: var(--ink-3); letter-spacing: 0.08em; text-transform: uppercase; font-size: 11px; margin-bottom: 4px; }
.hero-meta dd { margin: 0; color: var(--ink); font-size: 14px; }
.hero-image {
  position: relative; aspect-ratio: 4/5; overflow: hidden;
  background: var(--paper-3);
  border: 1px solid var(--rule);
}
.hero-image img { width: 100%; height: 100%; object-fit: cover; }
.hero-image::after {
  content:""; position: absolute; inset: 12px;
  border: 1px solid oklch(1 0 0 / 0.2); pointer-events: none;
}

/* ==== Trust strip ==== */
.trust {
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  padding: 22px 0;
  background: var(--paper-2);
}
.trust-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 24px; }
.trust-item {
  display: grid; gap: 4px; padding: 0 8px;
  border-left: 1px solid var(--rule); padding-left: 20px;
}
.trust-item:first-child { border-left: 0; padding-left: 8px; }
.trust-num { font-family: var(--f-display); font-size: 26px; font-weight: 600; letter-spacing: -0.02em; }
.trust-lab { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-3); }

/* ==== Two pillar ==== */
.pillars { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.pillar {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  display: grid; grid-template-rows: auto 1fr auto;
  overflow: hidden;
  transition: border-color .15s;
}
.pillar:hover { border-color: var(--ink-2); }
.pillar-img { aspect-ratio: 16/9; background: var(--paper-3); overflow: hidden; }
.pillar-img img { width: 100%; height: 100%; object-fit: cover; }
.pillar-body { padding: 28px 32px 8px; }
.pillar-body h3 { font-size: 28px; letter-spacing: -0.022em; margin-bottom: 12px; }
.pillar-body p { color: var(--ink-2); }
.pillar-foot {
  padding: 18px 32px 28px;
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--rule);
  margin-top: 16px;
  font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ink-3);
}
.pillar.lindquist { background: var(--steel-ink); color: oklch(0.94 0.01 250); border-color: var(--steel-ink); }
.pillar.lindquist h3 { color: var(--paper); }
.pillar.lindquist p { color: oklch(0.82 0.01 250); }
.pillar.lindquist .pillar-foot { border-top-color: oklch(0.32 0.04 252); color: oklch(0.7 0.01 250); }

/* ==== Capability tiles ==== */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.cap {
  background: var(--paper); padding: 28px; display: grid; gap: 10px;
  position: relative;
}
.cap:hover { background: var(--paper-2); }
.cap .num { font-family: var(--f-mono); font-size: 11px; color: var(--ink-3); letter-spacing: 0.12em; }
.cap h4 { font-size: 22px; letter-spacing: -0.022em; }
.cap p { font-size: 14.5px; color: var(--ink-2); margin: 0; }
.cap .specs { font-family: var(--f-mono); font-size: 12px; color: var(--ink-3); margin-top: 8px; }

/* ==== Industries strip ==== */
.industry-strip {
  display: flex; flex-wrap: wrap; gap: 0;
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.industry-strip a {
  padding: 16px 20px;
  border-right: 1px solid var(--rule);
  font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.04em;
  flex: 1; text-align: center; color: var(--ink-2);
}
.industry-strip a:hover { background: var(--steel-ink); color: var(--paper); }

/* ==== Tables ==== */
table.data {
  width: 100%; border-collapse: collapse;
  font-family: var(--f-mono); font-size: 13px;
  font-variant-numeric: tabular-nums;
}
table.data th, table.data td {
  text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--rule-2);
}
table.data th {
  background: var(--paper-2);
  font-family: var(--f-mono); font-weight: 500;
  text-transform: uppercase; font-size: 11px; letter-spacing: 0.1em; color: var(--ink-3);
  border-bottom: 1px solid var(--rule);
}
table.data tbody tr:hover { background: var(--paper-2); }

/* ==== Footer ==== */
footer.site {
  background: var(--steel-ink);
  color: oklch(0.85 0.01 250);
  padding: 64px 0 24px;
  margin-top: 64px;
}
footer.site h4 { color: var(--paper); font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 14px; font-family: var(--f-mono); font-weight: 500; }
footer.site a { color: oklch(0.85 0.01 250); }
footer.site a:hover { color: var(--orange); }
.foot-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid oklch(0.32 0.04 252); }
.foot-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 14px; }
.foot-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 24px; font-family: var(--f-mono); font-size: 12px;
  color: oklch(0.6 0.01 250);
}
.foot-brand-block .name { color: var(--paper); font-family: var(--f-display); font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.foot-brand-block .sub { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: oklch(0.7 0.01 250); margin-bottom: 18px; }
.iso-badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid oklch(0.45 0.02 250); padding: 6px 10px; border-radius: 999px;
  font-family: var(--f-mono); font-size: 11px; color: var(--paper); letter-spacing: 0.06em;
}

/* ==== Tag chips ==== */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--rule);
  padding: 5px 9px;
  border-radius: 2px;
  font-family: var(--f-mono); font-size: 12px;
  color: var(--ink-2);
  background: var(--paper);
}
.chip:hover { border-color: var(--ink-2); color: var(--ink); }
.chip-orange::before { content:""; width: 8px; height: 8px; background: var(--orange); border-radius: 999px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }

/* Color swatch dot for color-code chart */
.dot { display: inline-block; width: 14px; height: 14px; border-radius: 999px; border: 1px solid oklch(0.6 0 0 / 0.4); vertical-align: middle; margin-right: 6px; }

/* Page intro */
.page-intro { padding: 56px 0 24px; border-bottom: 1px solid var(--rule); }
.page-intro .crumbs { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--ink-3); margin-bottom: 18px; }
.page-intro .crumbs a:hover { color: var(--orange-deep); }
.page-intro h1 { font-size: clamp(36px, 4.4vw, 60px); margin-bottom: 18px; }

/* Cards generic */
.card-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.card {
  background: var(--paper); border: 1px solid var(--rule);
  padding: 24px; transition: border-color .15s;
}
.card:hover { border-color: var(--ink); }
.card .eyebrow { margin-bottom: 6px; }
.card h3 { margin-bottom: 6px; }
.card p { color: var(--ink-2); font-size: 14.5px; }

/* Striped placeholder for missing imagery */
.placeholder-img {
  background:
    repeating-linear-gradient(135deg, var(--paper-2) 0 12px, var(--paper-3) 12px 24px);
  display: grid; place-items: center;
  color: var(--ink-3); font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase;
  border: 1px solid var(--rule);
}

/* Lindquist marker ribbon (shown on Lindquist-context pages) */
.lindquist-marker {
  background: var(--steel-ink);
  color: oklch(0.92 0.01 250);
  font-family: var(--f-mono); font-size: 11.5px; letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 8px 0; text-align: center;
}
.lindquist-marker .badge {
  display: inline-block; border: 1px solid oklch(0.55 0.04 250); padding: 2px 8px; margin-right: 8px;
  border-radius: 2px;
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .pillars { grid-template-columns: 1fr; }
  .trust-row { grid-template-columns: repeat(2, 1fr); }
  .cap-grid { grid-template-columns: 1fr 1fr; }
  .card-grid-3 { grid-template-columns: 1fr; }
  .card-grid-2 { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  nav.primary { display: none; }
  .section-head { grid-template-columns: 1fr; }
}