:root {
  /* Identidade Sinai: preto, laranja, cinza e branco (briefing 09/2026) */
  --ink:#0f1012; --ink-soft:#565b63; --paper:#eff1f4; --base:#ffffff;
  --line:#dfe2e7; --orange:#f05219; --orange-dark:#a8340c; --graphite:#17191d;
  --white:#ffffff; --shadow:0 18px 48px rgba(15,16,18,.10);
  --radius:16px; --max:1180px;
}