/* ============================================================
   Markus marketing design system  (V3.3, 2026-07)
   Shared across index / intelligence / capabilities / tips.
   Palette: deep teal-ink + warm paper + vital-green + amber.
   Type: Space Grotesk (display) · Inter (body) · IBM Plex Mono (data).
   ============================================================ */
:root {
  --ink: #0B1D26;
  --ink-2: #12303b;
  --paper: #F6F4EF;
  --paper-2: #ffffff;
  --vital: #16B8A6;
  --vital-deep: #0E7C6B;
  --amber: #E8A13A;
  --slate: #5B6B72;
  --line: #dfe4e0;
  --line-dark: rgba(255,255,255,0.12);
  --shadow: 0 1px 2px rgba(11,29,38,.04), 0 12px 32px rgba(11,29,38,.08);
  --display: "Space Grotesk", system-ui, sans-serif;
  --body: "Inter", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
h1, h2, h3 { font-family: var(--display); font-weight: 600; letter-spacing: -.02em; line-height: 1.08; }

.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--vital-deep);
  display: inline-flex; align-items: center; gap: 8px;
}
.eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: var(--vital); box-shadow: 0 0 0 3px rgba(22,184,166,.18);
}

/* ---- Nav ---- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11,29,38,.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { height: 26px; width: auto; }
.brand .name { font-family: var(--display); font-weight: 700; color: #fff; letter-spacing: .02em; }
.brand .name b { color: var(--vital); font-weight: 700; }
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a {
  font-family: var(--mono); font-size: 13px; text-decoration: none;
  color: #b9c6cb; padding: 8px 12px; border-radius: 8px; transition: all .15s;
}
.nav-links a:hover { color: #fff; background: rgba(255,255,255,.06); }
.nav-links a.active { color: var(--vital); }
.nav-cta { background: var(--vital); color: var(--ink) !important; font-weight: 600; font-family: var(--body) !important; }
.nav-cta:hover { background: #1ad0bc; }
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ---- Buttons ---- */
.btn {
  font-family: var(--body); font-weight: 600; font-size: 15px;
  padding: 13px 22px; border-radius: 11px; text-decoration: none;
  display: inline-flex; align-items: center; gap: 9px; transition: all .16s; border: 0; cursor: pointer;
}
.btn-primary { background: var(--vital); color: var(--ink); }
.btn-primary:hover { background: #1ad0bc; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: #eaf1f0; border: 1px solid rgba(255,255,255,.22); }
.btn-ghost:hover { border-color: var(--vital); color: #fff; }
.btn-ink { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ink:hover { border-color: var(--vital); }

/* ---- Sections + reveal ---- */
section.band { padding: 88px 0; }
.band-paper { background: var(--paper-2); }
.band-ink { background: var(--ink); color: #eaf1f0; }
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.on { opacity: 1; transform: none; }
.lead-h2 { font-size: clamp(28px, 3.6vw, 42px); max-width: 16em; }
.lead-sub { color: var(--slate); font-size: 18px; max-width: 34em; margin-top: 14px; }
.band-ink .lead-h2 { color: #fff; }
.band-ink .lead-sub { color: #9fb0b5; }
.band-ink .eyebrow { color: var(--vital); }

/* ---- Vital-line divider ---- */
.vital-rule { display: block; width: 100%; height: 26px; }
.vital-rule path { fill: none; stroke: var(--vital); stroke-width: 1.6; opacity: .5; }

/* ---- Footer ---- */
footer.site { border-top: 1px solid var(--line); padding: 34px 0; color: var(--slate); font-size: 13px; }
.foot-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.foot-inner .mono { font-family: var(--mono); font-size: 12px; }

/* ---- Reusable cards ---- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
@media (max-width: 820px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.cap { background: var(--paper-2); border: 1px solid var(--line); border-radius: 14px; padding: 24px; box-shadow: var(--shadow); transition: transform .18s, border-color .18s; }
.cap:hover { transform: translateY(-3px); border-color: var(--vital); }
.cap .ic { font-size: 22px; }
.cap h3 { font-size: 18px; margin: 12px 0 7px; }
.cap p { color: var(--slate); font-size: 14.5px; }
.band-ink .cap { background: rgba(255,255,255,.03); border-color: var(--line-dark); }
.band-ink .cap h3 { color: #fff; }
.band-ink .cap p { color: #9fb0b5; }
.band-ink .cap .ic { color: var(--vital); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}