:root { --ink: #1c1a17; --muted: #6b665e; --ground: #f7f5f0; --line: #e2ddd3; --accent: #2f5d50; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif; }
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem 4rem; }
header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 2.5rem; }
header a { color: var(--ink); text-decoration: none; }
header .brand { font-weight: 700; letter-spacing: 0.02em; }
header nav a { color: var(--muted); margin-left: 1.25rem; }
h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 1rem; }
h2 { font-size: 1.25rem; margin: 2.25rem 0 0.5rem; }
p, li { margin: 0 0 0.9rem; }
ul { padding-left: 1.25rem; }
.lede { font-size: 1.2rem; color: var(--muted); }
.note { border-left: 3px solid var(--accent); padding: 0.25rem 0 0.25rem 1rem; color: var(--muted); }
footer { margin-top: 3rem; padding-top: 1rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.9rem; }
a { color: var(--accent); }