:root {
  --ink: #182032;
  --muted: #5e687a;
  --line: #dfe5ec;
  --paper: #ffffff;
  --wash: #f4f7fa;
  --accent: #176b5b;
  --accent-dark: #0f4f43;
}

* { box-sizing: border-box; }
html { color: var(--ink); font: 16px/1.55 Arial, Helvetica, sans-serif; }
body { margin: 0; background: var(--wash); }
a { color: inherit; }
.shell { width: min(1080px, calc(100% - 32px)); margin: 0 auto; }
.site-header { background: var(--paper); border-bottom: 1px solid var(--line); }
.bar { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { color: var(--accent-dark); font-weight: 800; letter-spacing: .08em; text-decoration: none; }
.nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.nav a { color: var(--muted); text-decoration: none; font-size: .94rem; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--accent-dark); text-decoration: underline; text-underline-offset: 4px; }
main { min-height: calc(100vh - 160px); padding: 72px 0; }
.hero { max-width: 720px; }
.eyebrow { color: var(--accent); font-size: .8rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
h1 { max-width: 800px; margin: 12px 0 20px; font-size: clamp(2rem, 5vw, 4.35rem); line-height: 1.06; letter-spacing: -.04em; }
h2 { margin-top: 0; font-size: 1.28rem; }
.lead { max-width: 650px; color: var(--muted); font-size: 1.17rem; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.button { display: inline-block; padding: 11px 17px; border: 1px solid var(--accent); border-radius: 4px; color: var(--accent-dark); font-weight: 700; text-decoration: none; }
.button.primary { background: var(--accent); color: white; }
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 58px; }
.card, .article { background: var(--paper); border: 1px solid var(--line); border-radius: 7px; padding: 25px; }
.card p, .article p, .article li { color: var(--muted); }
.article { max-width: 800px; }
.article h1 { font-size: clamp(2rem, 4vw, 3.2rem); }
.site-footer { padding: 26px 0; border-top: 1px solid var(--line); background: var(--paper); color: var(--muted); font-size: .88rem; }
.site-footer .shell { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 24px; }

@media (max-width: 700px) {
  .bar { align-items: flex-start; flex-direction: column; padding: 18px 0; gap: 12px; }
  .nav { gap: 6px 14px; }
  main { padding: 48px 0; }
  .grid { grid-template-columns: 1fr; margin-top: 38px; }
}