:root {
  color-scheme: light dark;
  --background: #f7f7fb;
  --surface: #ffffff;
  --text: #1d1b24;
  --muted: #5e5968;
  --accent: #5640a8;
  --border: #ddd9e7;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #141218;
    --surface: #201d26;
    --text: #f5f1fa;
    --muted: #c9c2d2;
    --accent: #c4b5fd;
    --border: #403a49;
  }
}

* { box-sizing: border-box; }

html { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-size: 1.0625rem;
  line-height: 1.65;
}

.wrap { width: min(46rem, calc(100% - 2rem)); margin-inline: auto; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  padding: .75rem 1rem;
  background: var(--surface);
  color: var(--accent);
  z-index: 1;
}

.skip-link:focus { top: 1rem; }

header {
  padding: 4rem 0 2.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.eyebrow { margin: 0; color: var(--accent); font-weight: 700; letter-spacing: .04em; }
h1 { margin: .25rem 0 .5rem; font-size: clamp(2rem, 7vw, 3.25rem); line-height: 1.12; }
.effective { margin: 0; color: var(--muted); }
main { padding-block: 1.5rem 3rem; }

section {
  margin-block: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
}

h2 { margin: 0 0 .5rem; font-size: 1.35rem; line-height: 1.3; }
p { margin: .65rem 0; }
ul { padding-left: 1.4rem; }
li + li { margin-top: .35rem; }
a { color: var(--accent); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: .15em; }
a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: .15rem; }

footer {
  padding: 2rem 0;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

@media (max-width: 32rem) {
  header { padding-top: 3rem; }
  section { padding: 1rem; border-radius: .75rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}