:root { color-scheme: light dark; --bg: #f6f4ef; --fg: #1d2a2a; --mut: #5b6b6a; --acc: #0f766e; --linha: #dcd8cf; }
@media (prefers-color-scheme: dark) { :root { --bg: #121a1a; --fg: #e8eeee; --mut: #9fb0ae; --acc: #2dd4bf; --linha: #2a3636; } }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; display: flex; flex-direction: column; background: var(--bg); color: var(--fg);
       font: 16px/1.6 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--acc); }
.centro { flex: 1; display: grid; place-content: center; text-align: center; padding: 0 16px; }
h1 { margin: 0 0 .25rem; font-size: 2rem; letter-spacing: -.02em; }
h1 span { color: var(--acc); }
.centro p { margin: 0; color: var(--mut); }
.texto { flex: 1; max-width: 760px; margin: 0 auto; padding: 32px 16px; }
.texto h1 { font-size: 1.6rem; }
.texto h2 { font-size: 1.1rem; margin-top: 1.8rem; }
.texto .voltar { display: inline-block; margin-bottom: 1rem; }
footer { border-top: 1px solid var(--linha); padding: 16px; text-align: center; font-size: .85rem; color: var(--mut); }
footer p { margin: .2rem 0; }