:root {
  color-scheme: light dark;
  --ink: #1f2722;
  --paper: #f6f5ef;
  --surface: #ffffff;
  --accent: #247c88;
  --accent-dark: #185e68;
  --accent-soft: #d9edf0;
  --muted: #667169;
  --line: #dce2dc;
}

:root[data-accent="forest"] { --accent: #3e6b4f; --accent-dark: #2d513b; --accent-soft: #dfebe2; }
:root[data-accent="sunshine"] { --accent: #e4b72d; --accent-dark: #714e00; --accent-soft: #fff0b8; }
:root[data-accent="papaya"] { --accent: #b64f32; --accent-dark: #873b27; --accent-soft: #fbe4dc; }

* { box-sizing: border-box; }

body {
  min-height: 100vh;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: ui-rounded, "Avenir Next", Avenir, "Segoe UI", sans-serif;
  display: flex;
  flex-direction: column;
}

.shell, footer, .document { width: min(100% - 40px, 760px); margin-inline: auto; }

.shell { flex: 1; padding: 42px 0 72px; }

.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand img { display: block; height: 34px; max-width: min(210px, 62vw); }

.hero { padding-top: clamp(88px, 17vh, 168px); max-width: 650px; }

.eyebrow {
  color: var(--accent);
  font-size: .9rem;
  font-weight: 800;
  letter-spacing: .08em;
  margin: 0 0 18px;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(3.1rem, 10vw, 5.7rem);
  letter-spacing: -.075em;
  line-height: .98;
  margin: 0;
}

.lede { color: var(--muted); font-size: clamp(1.08rem, 3vw, 1.28rem); line-height: 1.55; margin: 32px 0 18px; max-width: 550px; }
.availability { color: var(--accent-dark); font-weight: 800; margin: 0; }

footer { border-top: 1px solid var(--line); color: var(--muted); display: flex; flex-wrap: wrap; gap: 15px 22px; padding: 24px 0 32px; font-size: .9rem; }
footer a, .document a { color: inherit; text-underline-offset: 3px; }
footer span { margin-left: auto; }

.document { flex: 1; max-width: 720px; padding: 42px 0 72px; }
.document .brand { margin-bottom: 62px; }
.document h1 { font-size: clamp(2.5rem, 8vw, 4.25rem); margin-bottom: 16px; }
.document h2 { font-size: 1.2rem; margin: 38px 0 9px; }
.document p, .document li { color: var(--muted); font-family: ui-sans-serif, system-ui, sans-serif; line-height: 1.65; }
.document ul { padding-left: 22px; }
.document .updated { color: var(--muted); margin: 0; }

@media (prefers-color-scheme: dark) {
  :root { --ink: #f2f5f2; --paper: #111613; --surface: #1b211d; --accent: #67bece; --accent-dark: #a3dce5; --accent-soft: #163c43; --muted: #a9b3ac; --line: #39443d; }
  :root[data-accent="forest"] { --accent: #82c595; --accent-dark: #b2dcbd; --accent-soft: #203b29; }
  :root[data-accent="sunshine"] { --accent: #f0c94c; --accent-dark: #ffe18a; --accent-soft: #44370e; }
  :root[data-accent="papaya"] { --accent: #f09172; --accent-dark: #ffc0aa; --accent-soft: #4b291f; }
  .brand img { filter: invert(1); }
}

@media (max-width: 540px) {
  .shell, footer, .document { width: min(100% - 32px, 760px); }
  footer span { width: 100%; margin-left: 0; }
}