:root {
  color-scheme: light;
  --ink: #162821;
  --muted: #52655d;
  --paper: #fffdf7;
  --wash: #eef7ef;
  --brand: #156f55;
  --brand-dark: #0b4d3b;
  --accent: #f2b84b;
  --line: #cfe0d5;
  --radius: 20px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: ui-rounded, "SF Pro Rounded", "Avenir Next", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
}

a { color: var(--brand-dark); }
a:focus-visible, .button:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }

.shell { width: min(1080px, calc(100% - 40px)); margin: 0 auto; }

header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 247, .96);
}

nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 18px 0; }
.brand { color: var(--ink); font-weight: 800; text-decoration: none; letter-spacing: -.02em; }
.nav-links { display: flex; flex-wrap: wrap; gap: 18px; }
.nav-links a { font-weight: 700; text-decoration: none; }

.hero { padding: 84px 0 64px; background: linear-gradient(135deg, var(--wash), var(--paper) 62%); }
.eyebrow { color: var(--brand); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.15; letter-spacing: -.035em; }
h1 { max-width: 760px; margin: 12px 0 20px; font-size: clamp(2.7rem, 7vw, 5.4rem); }
h2 { margin-top: 0; font-size: clamp(1.9rem, 4vw, 3rem); }
.lead { max-width: 710px; color: var(--muted); font-size: 1.2rem; }
.button { display: inline-block; margin-top: 18px; padding: 13px 18px; border-radius: 999px; background: var(--brand); color: white; font-weight: 800; text-decoration: none; }

main section { padding: 64px 0; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 12px 38px rgba(22, 40, 33, .06); }
.card h3 { margin-top: 0; }
.notice { padding: 22px; border-left: 5px solid var(--accent); border-radius: 10px; background: #fff7df; }
.content { max-width: 780px; padding: 56px 0 76px; }
.content h1 { font-size: clamp(2.4rem, 6vw, 4rem); }
.content h2 { margin-top: 44px; font-size: 1.7rem; }
.meta { color: var(--muted); }

footer { padding: 28px 0 44px; border-top: 1px solid var(--line); color: var(--muted); }
footer p { margin: 6px 0; }

@media (max-width: 760px) {
  nav { align-items: flex-start; flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
  .hero { padding-top: 56px; }
}

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