:root {
  --bg: #f6f6f4;
  --ink: #161616;
  --muted: #6a6a68;
  --card: #ffffff;
  --accent: #f1af0f; /* Differ yellow */
  --on-accent: #1b1b1b;
  --line: #dcdcd8;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111111;
    --ink: #f1eee8;
    --muted: #9a958c;
    --card: #1b1b1b;
    --accent: #f1af0f;
    --line: #2c2c2c;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

h1, h2, .site-nav .brand {
  font-family: "Geom", "Space Grotesk", system-ui, sans-serif;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Space Grotesk", system-ui, sans-serif;
}

/* Site nav shared by every page */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.site-nav .inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-nav .brand {
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
  white-space: nowrap;
}
.site-nav .brand span { color: var(--accent); }
.site-nav a.link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}
.site-nav a.link:hover,
.site-nav a.link[aria-current="page"] { color: var(--ink); }
.site-nav a.link[aria-current="page"] {
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

header.hero {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px 32px;
}
h1 {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: -0.03em;
  margin: 0 0 16px;
}
h1 span { color: var(--accent); }
header.hero p {
  max-width: 56ch;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.5;
  margin: 0;
}

@media (max-width: 600px) {
  .site-nav .inner { padding: 12px 16px; gap: 14px; }
  .site-nav a.link { font-size: 0.9rem; }
  header.hero { padding: 40px 16px 24px; }
}