:root {
  color-scheme: light;
  --ink: #17231d;
  --muted: #5d6962;
  --line: #dfe7e1;
  --paper: #ffffff;
  --soft: #f3f8f4;
  --accent: #176b45;
  --accent-dark: #0f5033;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.72;
  text-rendering: optimizeLegibility;
}
.shell { width: min(100% - 40px, 780px); margin-inline: auto; }
.hero { padding: 50px 0 36px; background: linear-gradient(180deg, #edf7f0 0%, #f8fbf9 100%); border-bottom: 1px solid var(--line); }
.brand { display: inline-block; margin-bottom: 46px; color: var(--accent); font-size: 25px; font-weight: 800; letter-spacing: -0.04em; text-decoration: none; }
h1 { margin: 0; max-width: 720px; font-size: clamp(36px, 7vw, 58px); line-height: 1.06; letter-spacing: -0.045em; }
.updated { margin: 16px 0 0; color: var(--muted); font-size: 15px; }
.content { padding-block: 48px 72px; }
h2 { margin: 46px 0 12px; font-size: clamp(24px, 4vw, 30px); line-height: 1.2; letter-spacing: -0.025em; }
h2:first-child { margin-top: 0; }
p { margin: 0 0 18px; }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { color: var(--accent-dark); }
.button { display: inline-flex; align-items: center; min-height: 48px; margin: 4px 0 18px; padding: 11px 20px; border-radius: 12px; color: white; background: var(--accent); font-weight: 700; text-decoration: none; }
.button:hover { color: white; background: var(--accent-dark); }
footer { border-top: 1px solid var(--line); background: var(--soft); }
.footer-inner { display: flex; justify-content: space-between; gap: 24px; padding-block: 30px; color: var(--muted); font-size: 15px; }
footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
footer a { color: var(--ink); text-decoration: none; }
@media (max-width: 600px) {
  body { font-size: 16px; }
  .shell { width: min(100% - 28px, 780px); }
  .hero { padding-top: 32px; }
  .brand { margin-bottom: 34px; }
  .content { padding-block: 36px 54px; }
  h2 { margin-top: 38px; }
  .footer-inner { flex-direction: column; }
}