:root { color-scheme: light; --ink:#172018; --muted:#566153; --paper:#f7f4ed; --card:#fffaf0; --line:#ddd5c7; --accent:#2f5d46; }
* { box-sizing: border-box; }
body { margin:0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background:var(--paper); color:var(--ink); line-height:1.6; }
a { color:inherit; }
.wrap { width:min(1120px, calc(100% - 32px)); margin:0 auto; }
header { border-bottom:1px solid var(--line); background:rgba(247,244,237,.92); position:sticky; top:0; backdrop-filter: blur(12px); z-index:2; }
.nav { display:flex; justify-content:space-between; align-items:center; gap:24px; padding:16px 0; }
.brand { text-decoration:none; font-weight:800; letter-spacing:.04em; }
nav { display:flex; gap:16px; flex-wrap:wrap; }
nav a { text-decoration:none; color:var(--muted); font-size:14px; }
.hero { padding:72px 0 40px; }
.grid { display:grid; grid-template-columns:1.4fr .8fr; gap:28px; align-items:start; }
h1 { font-size:clamp(42px, 7vw, 84px); line-height:.92; letter-spacing:-.06em; margin:0 0 24px; }
h2 { font-size:clamp(28px, 4vw, 48px); line-height:1; letter-spacing:-.04em; margin:0 0 16px; }
h3 { margin:0 0 8px; font-size:22px; line-height:1.1; }
.eyebrow { text-transform:uppercase; letter-spacing:.16em; color:var(--accent); font-weight:800; font-size:12px; }
.subhead { font-size:20px; color:var(--muted); max-width:680px; }
.card, article.card { background:var(--card); border:1px solid var(--line); border-radius:24px; padding:24px; box-shadow:0 20px 60px rgba(23,32,24,.07); }
.cards { display:grid; grid-template-columns:repeat(3, 1fr); gap:18px; margin:24px 0 56px; }
.button, button { display:inline-flex; border:0; background:var(--ink); color:white; padding:12px 18px; border-radius:999px; text-decoration:none; font-weight:800; cursor:pointer; }
.button.secondary { background:transparent; color:var(--ink); border:1px solid var(--line); }
section { padding:48px 0; }
form { display:grid; gap:12px; }
input { width:100%; padding:13px 14px; border:1px solid var(--line); border-radius:14px; font:inherit; background:white; }
label { display:flex; align-items:flex-start; gap:10px; color:var(--muted); font-size:14px; }
label input[type="checkbox"] { width:auto; margin-top:5px; }
.signup-message { min-height:24px; font-weight:700; color:var(--accent); }
.article-page main { width:min(780px, calc(100% - 32px)); margin:0 auto; padding:56px 0; }
.article-page h1 { font-size:clamp(38px, 6vw, 72px); }
.article-page .meta { color:var(--muted); font-weight:700; }
.article-page section { padding:24px 0; }
footer { border-top:1px solid var(--line); padding:32px 0; color:var(--muted); }
@media (max-width: 820px) { .grid, .cards { grid-template-columns:1fr; } .nav { align-items:flex-start; flex-direction:column; } }