:root {
  --ink: #17211e;
  --muted: #5d6863;
  --paper: #fbfaf6;
  --surface: #edf1eb;
  --line: #d9dfd8;
  --accent: #205b49;
  --accent-hover: #174536;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.55 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
main, footer { max-width: 1120px; margin: auto; padding-left: 24px; padding-right: 24px; }
nav { min-height: 88px; display: flex; align-items: center; justify-content: space-between; }
a { color: inherit; }
.brand { font-size: 1.08rem; font-weight: 750; letter-spacing: -.02em; text-decoration: none; }
nav > a:last-child { color: var(--muted); font-size: .94rem; }
.hero { padding: 82px 0 96px; max-width: 760px; }
.eyebrow { color: var(--accent); font-size: .78rem; font-weight: 750; letter-spacing: .11em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.75rem, 7vw, 5.6rem); line-height: .98; letter-spacing: -.055em; margin-bottom: 26px; }
h2 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.1rem, 4vw, 3.4rem); letter-spacing: -.035em; line-height: 1.04; }
.intro { color: var(--muted); font-size: 1.2rem; max-width: 650px; margin-bottom: 32px; }
.button { display: inline-block; background: var(--accent); border-radius: 4px; color: white; font-weight: 700; padding: 14px 20px; text-decoration: none; transition: background .15s ease; }
.button:hover { background: var(--accent-hover); }
.button.is-disabled { background: #9ea8a2; cursor: not-allowed; pointer-events: none; }
.disclosure { color: var(--muted); font-size: .8rem; max-width: 570px; margin: 18px 0 0; }
.guide { border-top: 1px solid var(--line); padding: 82px 0; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
article { background: var(--surface); padding: 28px; min-height: 230px; }
article span { color: var(--accent); font-size: .82rem; font-weight: 800; }
h3 { font-size: 1.15rem; margin: 36px 0 9px; }
article p { color: var(--muted); font-size: .94rem; }
.callout { background: var(--ink); color: #f7f6f0; margin-bottom: 78px; padding: 58px; }
.callout h2 { margin-bottom: 10px; }
.callout p { color: #c5cec8; margin-bottom: 26px; }
.callout .button { background: #e3f0ad; color: #193426; }
footer { border-top: 1px solid var(--line); color: var(--muted); display: flex; flex-wrap: wrap; gap: 18px; font-size: .82rem; padding-bottom: 30px; padding-top: 30px; }
footer a { text-underline-offset: 3px; }
@media (max-width: 700px) { .hero { padding: 58px 0 68px; } .cards { grid-template-columns: 1fr; } article { min-height: auto; } .callout { margin-left: -24px; margin-right: -24px; padding: 44px 24px; } }