:root { color-scheme: light; --ink: #21302b; --muted: #5b6c65; --surface: #fff; --background: #f5f7f3; --accent: #2f6b52; --accent-soft: #e4f0e8; --border: #d6e0d9; }
* { box-sizing: border-box; }
html { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; }
body { margin: 0; color: var(--ink); background: var(--background); }
a { color: var(--accent); }
a:focus-visible { outline: 3px solid #d18b2c; outline-offset: 3px; }
.shell { width: min(100% - 2rem, 58rem); margin: 0 auto; }
header { padding: 1rem 0; background: var(--surface); border-bottom: 1px solid var(--border); }
.nav { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; align-items: center; justify-content: space-between; }
.brand { color: var(--ink); font-size: 1.2rem; font-weight: 750; text-decoration: none; }
nav { display: flex; flex-wrap: wrap; gap: .8rem 1rem; }
nav a { font-size: .95rem; }
main { padding: 3.5rem 0; }
.hero, .card { padding: clamp(1.4rem, 4vw, 2.5rem); background: var(--surface); border: 1px solid var(--border); border-radius: 1rem; box-shadow: 0 8px 24px rgba(33, 48, 43, .05); }
.hero { background: linear-gradient(135deg, var(--accent-soft), var(--surface) 65%); }
h1, h2 { line-height: 1.2; }
h1 { margin-top: 0; font-size: clamp(2rem, 6vw, 3.6rem); }
h2 { margin-top: 2rem; }
.lead { max-width: 42rem; color: var(--muted); font-size: 1.15rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 1rem; margin-top: 1rem; }
.button { display: inline-block; padding: .7rem 1rem; color: #fff; background: var(--accent); border-radius: .55rem; font-weight: 700; text-decoration: none; }
footer { padding: 2rem 0; color: var(--muted); font-size: .9rem; }
ul { padding-left: 1.25rem; }
@media (max-width: 38rem) { .nav { align-items: flex-start; flex-direction: column; } main { padding: 2rem 0; } }