:root { color-scheme: light dark; --navy: #14213D; --red: #D7263D; --ink: #1b1b1f; --paper: #ffffff; --muted: #5c5f6b; }
@media (prefers-color-scheme: dark) { :root { --ink: #e8e8ec; --paper: #0f1320; --muted: #a2a6b3; --navy: #e8e8ec; } }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--paper); }
main { max-width: 42rem; margin: 0 auto; padding: 3rem 1.25rem 4rem; }
header { display: flex; align-items: center; gap: .75rem; margin-bottom: 2rem; }
header a { color: inherit; text-decoration: none; font-weight: 700; font-size: 1.25rem; letter-spacing: .01em; }
.mark { width: 36px; height: 36px; border-radius: 9px; background: #14213D; display: inline-grid; place-items: center; color: #fff; font-weight: 800; font-size: 15px; }
h1 { font-size: 2rem; line-height: 1.15; margin: 0 0 .5rem; color: var(--navy); }
h2 { font-size: 1.2rem; margin: 2rem 0 .5rem; }
p, li { color: var(--ink); }
.lede { font-size: 1.25rem; color: var(--muted); margin: 0 0 1.5rem; }
.muted { color: var(--muted); font-size: .95rem; }
a { color: var(--red); }
footer { margin-top: 3rem; border-top: 1px solid rgba(128,128,128,.25); padding-top: 1rem; color: var(--muted); font-size: .9rem; }
table { border-collapse: collapse; width: 100%; font-size: .95rem; }
td, th { text-align: left; vertical-align: top; padding: .5rem .5rem .5rem 0; border-bottom: 1px solid rgba(128,128,128,.25); }