/* Petoskey Stone Code — static frontpage. No JS, no cookies, no external requests. */

:root {
  color-scheme: light dark;
  --bg: #f7f5f1;
  --ink: #26241f;
  --muted: #6b6459;
  --accent: #4a6d6a;      /* muted lake-teal */
  --hairline: #ddd7cc;
  --card: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1a17;
    --ink: #e8e4dc;
    --muted: #a39b8d;
    --accent: #8fb5b1;
    --hairline: #4a443b;
    --card: #282420;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 44rem;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 3rem;
}

header { text-align: center; }

.mark {
  width: 84px;
  height: 73px;
  margin-bottom: 1.25rem;
}
.mark .hex { stroke: var(--accent); }
.mark .hex-b, .mark .hex-c { stroke: var(--muted); opacity: 0.55; }
.mark .core { fill: var(--accent); stroke: none; }

h1 {
  font-size: 2rem;
  letter-spacing: 0.01em;
  margin: 0 0 0.4rem;
  font-weight: 650;
}

.tagline {
  color: var(--muted);
  margin: 0;
  font-size: 1.05rem;
}

.lede {
  margin: 3rem 0 2.5rem;
  font-size: 1.08rem;
}

.cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
  gap: 1rem;
}

.cols div {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 8px;
  padding: 1.1rem 1.2rem;
}

h2 {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 0 0 0.5rem;
  font-weight: 600;
}

.cols p { margin: 0; font-size: 0.95rem; color: var(--muted); }

.posture {
  margin: 2.5rem 0 0;
  text-align: center;
  color: var(--muted);
  font-style: italic;
}

.contact {
  margin-top: 2.75rem;
  text-align: center;
}

.contact p { margin: 0; font-size: 1.05rem; }

.contact a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.contact a:hover, .contact a:focus {
  text-decoration-thickness: 2px;
}

footer {
  margin-top: 4rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--hairline);
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}