:root { --teal: #0d7d76; --ink: #1f2937; --muted: #6b7280; --ground: #f5f7f7; }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color: var(--ink); background: var(--ground); }
header { background: var(--teal); color: #fff; }
.wrap { max-width: 760px; margin: 0 auto; padding: 24px 20px; }
.brand { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; font-weight: 700; font-size: 18px; }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
main .wrap { background: #fff; border-radius: 16px; margin-top: 24px; margin-bottom: 24px; }
h1 { font-size: 28px; line-height: 1.25; margin: 8px 0 12px; }
h2 { font-size: 19px; margin-top: 28px; }
a { color: var(--teal); }
a:focus-visible, .button:focus-visible { outline: 3px solid #f59e0b; outline-offset: 2px; }
.muted { color: var(--muted); font-size: 14px; }
.button { display: inline-block; background: var(--teal); color: #fff; padding: 12px 20px; border-radius: 10px; text-decoration: none; font-weight: 600; }
ul { padding-left: 22px; }
footer { text-align: center; padding: 8px 20px 32px; }
footer a { margin: 0 8px; }