:root {
  --bg: #ffffff;
  --surface: #f6f7f9;
  --border: #e3e6ea;
  --text: #1c1f23;
  --muted: #5c6570;
  --accent: #1f6f5c;
  --accent-soft: #edf5f2;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181c;
    --surface: #1d2126;
    --border: #2d333a;
    --text: #e8eaed;
    --muted: #9aa4af;
    --accent: #5fbfa4;
    --accent-soft: #1b2a27;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

header { margin-bottom: 2.5rem; }

.mark {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: -.02em;
  text-decoration: none;
  color: var(--text);
}

.mark span[aria-hidden] { font-size: 1.7rem; }

.tagline {
  margin: .5rem 0 0;
  color: var(--muted);
  font-size: 1.02rem;
}

h1 {
  font-size: 1.85rem;
  letter-spacing: -.02em;
  margin: 0 0 .4rem;
}

h2 {
  font-size: 1.16rem;
  letter-spacing: -.01em;
  margin: 2.4rem 0 .7rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
}

h2:first-of-type { border-top: 0; padding-top: 0; }

h3 {
  font-size: 1rem;
  margin: 1.5rem 0 .35rem;
}

p, li { color: var(--text); }
p { margin: 0 0 1rem; }
ul { padding-left: 1.15rem; margin: 0 0 1rem; }
li { margin-bottom: .5rem; }

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }

.eyebrow {
  color: var(--muted);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  margin: 0 0 1.8rem;
}

.callout {
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem 1.3rem;
  margin: 0 0 2rem;
}

.callout p:last-child { margin-bottom: 0; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.15rem 1.3rem;
  margin: 0 0 1rem;
}

.card p:last-child { margin-bottom: 0; }

.contact {
  font-size: 1.1rem;
  font-weight: 600;
}

footer {
  margin-top: 3.5rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .87rem;
}

footer p { color: var(--muted); margin-bottom: .5rem; }

nav.links { margin-top: .8rem; display: flex; gap: 1.2rem; flex-wrap: wrap; }