/* Simple text-only layout. Palette: #FFFFFF #000000 #808080 #C0C0C0 #404040.
   Follows the system light/dark setting. */
:root {
  --bg: #ffffff;
  --text: #000000;
  --muted: #404040;
  --rule: #c0c0c0;
  --marker: #808080;
  --link: #000000;
  --ph-bg: #c0c0c0;
  --ph-text: #000000;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --text: #ffffff;
    --muted: #c0c0c0;
    --rule: #404040;
    --marker: #808080;
    --link: #ffffff;
    --ph-bg: #404040;
    --ph-text: #ffffff;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
}

.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 48px 16px 32px;
}

a { color: var(--link); text-underline-offset: 3px; }
a:focus-visible { outline: 2px solid currentColor; outline-offset: 2px; }

/* Header */
.top { text-align: center; margin-bottom: 32px; }
.brand {
  margin: 0 0 12px;
  font-size: 1.1rem; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
}
.top nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 18px; font-size: .9rem; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--text); text-decoration: underline; }

/* Text */
h2 {
  margin: 0 0 16px;
  font-size: 1.15rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase; text-align: center;
}
h3 {
  margin: 28px 0 8px;
  font-size: .95rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase;
}
p { margin: 0 0 14px; }
.intro { text-align: center; color: var(--muted); }
.notice, .updated { font-size: .92rem; color: var(--muted); }
.updated { text-align: center; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }

ul, ol { margin: 0 0 14px; padding-left: 1.5em; }
li { margin: 6px 0; }
li::marker { color: var(--marker); }

hr { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }

section { scroll-margin-top: 16px; }
#contact { text-align: center; }
.email { font-weight: 600; }

/* Placeholders to fill in */
.ph {
  background: var(--ph-bg); color: var(--ph-text);
  padding: 0 .3em; border-radius: 3px;
}

.foot { margin-top: 48px; text-align: center; font-size: .85rem; color: var(--muted); }
.foot a { color: var(--muted); }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }