/* Keystone marketing — visual primitives
   Brand palette: Slate #1B2430, Cinnabar #D94E3A, Limestone #F1ECE3
   Mirrors trinity_meridian_marketing structure; adapted for Keystone palette. */

:root {
  --slate: #1B2430;
  --slate-darker: #161D27;
  --slate-raised: #2A3441;
  --cinnabar: #D94E3A;
  --limestone: #F1ECE3;
  --hairline: rgba(241, 236, 227, 0.08);
  --type-dim: rgba(241, 236, 227, 0.55);
  --type-faint: rgba(241, 236, 227, 0.42);
  --container: 1180px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--slate);
  color: var(--limestone);
  font-family: 'Hanken Grotesk', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }

/* ─────── Container ─────── */
.k-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

/* ─────── Nav ─────── */
.k-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 22px 32px;
}
.k-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
}
.k-brand-mark { color: var(--cinnabar); }
.k-brand-sub { color: var(--type-dim); font-weight: 400; }
.k-navlinks { display: flex; gap: 28px; font-size: 14px; color: var(--type-dim); }
.k-navlinks a:hover { color: var(--limestone); }
.k-navcta { display: flex; gap: 10px; }

/* ─────── Buttons ─────── */
.k-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.005em;
  border: 1px solid transparent;
  transition: background 120ms, border-color 120ms, color 120ms;
}
.k-btn-primary { background: var(--cinnabar); color: var(--limestone); }
.k-btn-primary:hover { background: #C24430; }
.k-btn-outline { border-color: rgba(241, 236, 227, 0.25); color: var(--limestone); }
.k-btn-outline:hover { border-color: var(--limestone); }
.k-btn-ghost { color: var(--limestone); }
.k-btn-ghost:hover { color: var(--cinnabar); }
.k-btn-lg { padding: 14px 24px; font-size: 14px; }

/* ─────── Typography ─────── */
.k-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cinnabar);
  font-weight: 600;
  margin-bottom: 18px;
}
.k-h1 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 300;
  font-size: clamp(36px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 20px;
  max-width: 920px;
}
.k-h1 em { color: var(--cinnabar); font-style: italic; font-weight: 400; }
.k-h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 300;
  font-size: clamp(28px, 3.5vw, 38px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  max-width: 760px;
}
.k-h2 em { color: var(--cinnabar); font-style: italic; font-weight: 400; }
.k-h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 10px;
  line-height: 1.3;
}
.k-lede {
  font-size: 18px;
  line-height: 1.55;
  max-width: 640px;
  color: var(--limestone);
  margin: 0 0 24px;
  opacity: 0.9;
}
.k-body { font-size: 16px; line-height: 1.65; color: var(--limestone); opacity: 0.85; max-width: 640px; }

/* ─────── Hero ─────── */
.k-hero {
  padding: 64px 0 96px;
}
.k-hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.k-hero-marks {
  display: flex;
  gap: 24px;
  margin-top: 36px;
  font-size: 12px;
  color: var(--type-dim);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
}
.k-hero-marks strong { color: var(--limestone); font-weight: 600; }
.k-hero-marks .k-sep { color: var(--type-faint); }

/* ─────── Section ─────── */
.k-section { padding: 96px 0; border-top: 1px solid var(--hairline); }
.k-section-head { margin-bottom: 48px; }
.k-section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--cinnabar);
  margin-bottom: 14px;
}

/* ─────── Cards / grids ─────── */
.k-grid { display: grid; gap: 20px; }
.k-grid-2 { grid-template-columns: repeat(2, 1fr); }
.k-grid-3 { grid-template-columns: repeat(3, 1fr); }
.k-grid-6 { grid-template-columns: repeat(3, 1fr); }   /* 3-cols, 6 items = 2 rows */

.k-card {
  background: var(--slate-raised);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 28px;
  transition: border-color 160ms;
}
.k-card:hover { border-color: rgba(217, 78, 58, 0.4); }
.k-card-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--cinnabar);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.k-card-body { font-size: 14px; line-height: 1.55; color: var(--type-dim); }

/* ─────── Mockup frame ─────── */
.k-mockup {
  background: var(--slate-raised);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 20px;
  margin-top: 28px;
}
.k-mockup-head {
  display: flex;
  gap: 10px;
  align-items: center;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 14px;
  font-size: 13px;
  font-weight: 600;
}
.k-mockup-tabs {
  display: flex;
  gap: 18px;
  font-size: 11px;
  color: var(--type-faint);
  margin-bottom: 16px;
}
.k-mockup-tabs .k-on {
  color: var(--cinnabar);
  border-bottom: 1px solid var(--cinnabar);
  padding-bottom: 4px;
}

/* ─────── Tags ─────── */
.k-tag {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--cinnabar);
  border: 1px solid rgba(217, 78, 58, 0.4);
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-left: 6px;
  vertical-align: middle;
}

/* ─────── Compare table ─────── */
.k-compare {
  margin-top: 32px;
  overflow-x: auto;
}
.k-compare table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.k-compare th, .k-compare td {
  padding: 14px 12px;
  text-align: left;
  border-bottom: 1px solid var(--hairline);
  vertical-align: top;
}
.k-compare th { font-weight: 600; font-size: 12px; letter-spacing: 0.04em; }
.k-compare th.k-self { color: var(--cinnabar); }
.k-compare td.k-yes { color: var(--limestone); }
.k-compare td.k-no { color: var(--type-faint); }
.k-compare td.k-partial { color: var(--type-dim); }

/* ─────── Capabilities tables ─────── */
.k-cap-group { margin-bottom: 48px; }
.k-cap-group h3 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--cinnabar);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--hairline);
}
.k-cap-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 24px;
  padding: 10px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 14px;
}
.k-cap-row dt { font-weight: 600; color: var(--limestone); }
.k-cap-row dd { margin: 0; color: var(--type-dim); line-height: 1.5; }

/* ─────── Closer CTA strip ─────── */
.k-closer {
  text-align: center;
  padding: 96px 0;
  border-top: 1px solid var(--hairline);
}
.k-closer h2 {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 300;
  font-size: clamp(28px, 4vw, 42px);
  margin: 0 0 28px;
  line-height: 1.15;
}
.k-closer .k-btn-lg { display: inline-flex; }

/* ─────── Footer ─────── */
.k-footer {
  border-top: 1px solid var(--hairline);
  padding: 56px 0 32px;
  background: var(--slate-darker);
}
.k-footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px 48px;
  border-bottom: 1px solid var(--hairline);
}
.k-footer-brand .k-brand { font-size: 16px; margin-bottom: 12px; }
.k-footer-tagline { color: var(--type-dim); font-size: 13px; max-width: 280px; line-height: 1.5; margin: 0; }
.k-footer-col h4 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--type-faint);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 16px;
  font-weight: 600;
}
.k-footer-col a {
  display: block;
  color: var(--type-dim);
  font-size: 13px;
  margin-bottom: 10px;
  transition: color 120ms;
}
.k-footer-col a:hover { color: var(--limestone); }
.k-footer-legal {
  max-width: var(--container);
  margin: 0 auto;
  padding: 24px 32px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--type-faint);
  letter-spacing: 0.06em;
}

/* ─────── Mobile ─────── */
@media (max-width: 800px) {
  .k-nav { flex-wrap: wrap; gap: 16px; padding: 18px 20px; }
  .k-navlinks { order: 3; flex-basis: 100%; gap: 18px; font-size: 13px; }
  .k-navcta { gap: 8px; }
  .k-navcta .k-btn { padding: 8px 14px; font-size: 12px; }
  .k-hero { padding: 40px 0 64px; }
  .k-section { padding: 64px 0; }
  .k-grid-2, .k-grid-3, .k-grid-6 { grid-template-columns: 1fr; }
  .k-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .k-cap-row { grid-template-columns: 1fr; gap: 4px; }
  .k-container, .k-nav, .k-footer-grid, .k-footer-legal { padding-left: 20px; padding-right: 20px; }
}

/* ─────── Reduced motion ─────── */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}