:root {
  --yellow: #ffcc00; /* amarelo Correios-like */
  --yellow-600: #e6b800;
  --black: #161616;
  --gray-900: #1f1f1f;
  --gray-700: #2e2e2e;
  --gray-500: #757575;
  --white: #ffffff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, sans-serif;
  color: var(--black);
  background: #fafafa;
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--yellow);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  font-weight: 700;
  text-decoration: none;
  color: var(--black);
}
.site-nav ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 16px; }
.site-nav a { text-decoration: none; color: var(--black); font-weight: 600; }
.nav-toggle { display: none; background: transparent; border: none; font-size: 24px; }

@media (max-width: 760px) {
  .nav-toggle { display: inline-block; }
  .site-nav { display: none; position: absolute; left: 0; right: 0; top: 60px; background: var(--yellow); }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; padding: 12px 16px; }
}

.hero {
  background: var(--yellow);
  color: var(--black);
  padding: 48px 0 24px;
}
.hero-inner h1 { font-size: 32px; margin: 0 0 12px; }
.hero-inner p { max-width: 700px; }
.hero-ctas { margin-top: 16px; display: flex; gap: 12px; }
.hero-trust { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 8px; margin-top: 20px; }
.disclaimer { font-size: 14px; color: var(--gray-700); margin-top: 12px; }

.section { padding: 40px 0; }
.section.alt { background: #fff; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.card { background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: 8px; padding: 16px; box-shadow: 0 1px 2px rgba(0,0,0,0.04); }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.steps li { background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: 8px; padding: 12px; }

.cta-inline { margin-top: 16px; }
.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; padding: 10px 16px; font-weight: 700; text-decoration: none; cursor: pointer; }
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { background: var(--gray-900); }
.btn-outline { background: transparent; border: 2px solid var(--black); color: var(--black); }
.btn-outline:hover { background: var(--black); color: var(--white); }

.company-info { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.note { color: var(--gray-700); font-size: 14px; }

.site-footer { background: var(--yellow); border-top: 1px solid rgba(0,0,0,0.08); }
.footer-inner { display: flex; gap: 16px; align-items: center; justify-content: space-between; padding: 16px 0; }
.footer-nav a { margin-right: 12px; text-decoration: none; color: var(--black); font-weight: 600; }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-form { display: grid; gap: 8px; }
.contact-form input, .contact-form textarea { border: 1px solid rgba(0,0,0,0.12); border-radius: 8px; padding: 10px 12px; font: inherit; }
.form-disclaimer { font-size: 12px; color: var(--gray-500); }

/* A11y helpers */
[aria-current="page"] { text-decoration: underline; }