:root {
  color-scheme: light;
  --max-width: 40rem;
  --max-width-wide: 64rem;
  --fg: #16161d;
  --bg: #ffffff;
  --bg-soft: #f5f6f6;
  --accent: #1b4b4b;
  --muted: #62636a;
  --border: color-mix(in srgb, var(--fg) 12%, transparent);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, system-ui, "Segoe UI", Roboto, sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
nav.wrap {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}
.brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 600; letter-spacing: 0.01em; margin-right: auto; text-decoration: none; color: var(--fg); }
.brand-mark { display: flex; align-items: center; justify-content: center; }
nav .navlink { color: var(--muted); text-decoration: none; font-size: 0.92rem; font-weight: 500; }
nav .navlink:hover { color: var(--accent); }
button.navlink { background: none; border: none; padding: 0; font: inherit; display: inline-flex; align-items: center; gap: 0.35rem; cursor: pointer; }
#nav-feedback-trigger { color: var(--accent); }
#nav-feedback-trigger:hover { opacity: 0.8; }
#nav-feedback-trigger svg { width: 36px; height: 36px; }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 1.25rem; }
.wrap-wide { max-width: var(--max-width-wide); margin: 0 auto; padding: 0 1.25rem; }
.page { padding: 2.5rem 1.25rem 4rem; }

h1 { font-size: 1.9rem; font-weight: 600; letter-spacing: -0.01em; }
h2 { font-size: 1.15rem; font-weight: 600; letter-spacing: -0.005em; margin-top: 2.25rem; }
p { color: #333; }

footer { border-top: 1px solid var(--border); color: var(--muted); font-size: 0.85rem; margin-top: 2rem; }
.footer-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem 1.5rem; padding: 1.5rem 1.25rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.25rem 1.1rem; }
.footer-links a { color: var(--muted); text-decoration: none; }
.footer-links a:hover { color: var(--accent); }