/* euaiact.courses — white institutional landing */
:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --muted: #4a4a4a;
  --border: #d8dde6;
  --accent: #003399;
  --accent-soft: #e8eef8;
  --measure: 42rem;
  --wide: 56rem;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Source Sans 3", "IBM Plex Sans", system-ui, -apple-system, Segoe UI, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.skip {
  position: absolute; left: -9999px; top: auto;
}
.skip:focus { left: 1rem; top: 1rem; z-index: 100; background: #fff; padding: .5rem .75rem; border: 2px solid var(--accent); }
.topbar {
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.topbar-inner {
  max-width: var(--wide);
  margin: 0 auto;
  padding: .85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.mark {
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
  text-decoration: none;
  font-size: 1rem;
}
.mark span { color: var(--accent); }
.nav { display: flex; gap: 1.1rem; flex-wrap: wrap; font-size: .95rem; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover { color: var(--accent); }
main { display: block; }
.wrap {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0 1.25rem;
}
.hero {
  padding: 3.25rem 0 2.5rem;
  border-bottom: 3px solid var(--accent);
}
.hero .kicker {
  color: var(--accent);
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin: 0 0 .75rem;
}
.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 3.2vw, 2.35rem);
  font-weight: 700;
  line-height: 1.2;
  max-width: var(--measure);
  letter-spacing: -0.01em;
}
.hero .lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
  max-width: var(--measure);
  font-size: 1.125rem;
}
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; }
.btn {
  display: inline-block;
  padding: .65rem 1.1rem;
  font-weight: 600;
  font-size: .95rem;
  border: 1px solid var(--accent);
  text-decoration: none;
  line-height: 1.2;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #002266; border-color: #002266; color: #fff; }
.btn-ghost { background: #fff; color: var(--accent); }
.btn-ghost:hover { background: var(--accent-soft); }
section {
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--border);
}
section h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  font-weight: 700;
  max-width: var(--measure);
}
section p, section li { max-width: var(--measure); color: var(--muted); }
section p { margin: 0 0 1rem; }
.note {
  font-size: .95rem;
  color: var(--muted);
  max-width: var(--measure);
  margin: 0 0 1.25rem;
}
.track {
  margin: 0 0 2rem;
  max-width: var(--wide);
}
.track h3 {
  margin: 0 0 .35rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}
.track .desc {
  margin: 0 0 .85rem;
  color: var(--muted);
  max-width: var(--measure);
  font-size: .98rem;
}
.track .src {
  font-size: .85rem;
  margin: 0 0 .85rem;
}
.spec {
  width: 100%;
  border-collapse: collapse;
  font-size: .95rem;
}
.spec th, .spec td {
  text-align: left;
  vertical-align: top;
  padding: .55rem .65rem .55rem 0;
  border-top: 1px solid var(--border);
}
.spec th {
  width: 38%;
  font-weight: 600;
  color: var(--text);
  padding-right: 1rem;
}
.spec td { color: var(--muted); }
.spec a { font-weight: 600; text-decoration: none; }
.spec a:hover { text-decoration: underline; }
@media (max-width: 640px) {
  .spec, .spec thead, .spec tbody, .spec th, .spec td, .spec tr { display: block; width: 100%; }
  .spec th { border-top: 1px solid var(--border); padding-bottom: .15rem; width: auto; }
  .spec td { border-top: none; padding-top: 0; padding-bottom: .7rem; }
}
.dl {
  margin: 0;
  max-width: var(--wide);
}
.dl dt {
  font-weight: 600;
  color: var(--text);
  margin: 0;
  padding-top: .7rem;
  border-top: 1px solid var(--border);
}
.dl dd {
  margin: .2rem 0 .85rem;
  color: var(--muted);
  max-width: var(--measure);
}
.who-list {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
}
.who-list li { margin-bottom: .45rem; }
.outcomes {
  list-style: none;
  padding: 0;
  margin: 0;
  max-width: var(--measure);
}
.outcomes li {
  padding: .65rem 0 .65rem 1rem;
  border-left: 3px solid var(--accent);
  margin-bottom: .65rem;
  color: var(--muted);
}
.cta-band {
  background: #f7f9fc;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-band .inner { padding: 2.5rem 0; }
.cta-band h2 { margin-bottom: .5rem; }
.footer {
  padding: 2rem 0 2.5rem;
  font-size: .9rem;
  color: var(--muted);
}
.footer .wrap {
  display: grid;
  gap: 1rem;
}
.footer strong { color: var(--text); }
.footer nav { display: flex; flex-wrap: wrap; gap: .85rem; }
.footer a { color: var(--muted); text-decoration: none; }
.footer a:hover { color: var(--accent); }