/* Refinamento visual: menos blocos, mais respiro e hierarquia mais direta. */
.nav {
  position: fixed;
  background: rgba(4, 21, 42, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.hero {
  min-height: 650px;
  height: 82vh;
}

.intro {
  padding-top: 88px;
  padding-bottom: 42px;
}

.services { padding-bottom: 88px; }
.service { min-height: 230px; }
.service h3 { margin-top: 30px; }

.coverage { min-height: 540px; }
.coverage-copy { padding-top: 82px; padding-bottom: 82px; }
.port-network { padding: 38px; gap: 10px; }
.port-card { padding: 11px; grid-template-columns: 96px minmax(0, 1fr); gap: 14px; }
.port-logo { height: 64px; padding: 9px; }

.carriers { padding-bottom: 84px; }
.carriers-heading { min-height: 390px; padding-top: 62px; padding-bottom: 98px; }
.carrier-tools > p { color: #d7e6f2; line-height: 1.7; font-size: 17px; margin: 0; }
.carrier-search { display: block; margin-top: 22px; }
.carrier-search span { display: block; margin-bottom: 8px; color: #a9c5dc; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.carrier-search input { width: min(100%, 360px); height: 46px; padding: 0 15px; border: 1px solid rgba(255,255,255,.34); border-radius: 3px; background: rgba(4,21,42,.58); color: #fff; font: inherit; font-size: 14px; outline: none; }
.carrier-search input::placeholder { color: #a9bfd2; }
.carrier-search input:focus { border-color: #70bfff; box-shadow: 0 0 0 3px rgba(77,169,239,.18); }
.carrier-grid { margin-top: -48px; box-shadow: 0 14px 38px rgba(4,27,51,.11); }
.carrier-link { min-height: 118px; padding: 20px 18px; }
.carrier-link[hidden] { display: none; }
.carrier-link b { right: 16px; top: 17px; }

.structure { padding-top: 92px; padding-bottom: 92px; gap: 7vw; }
.structure-photo { min-height: 570px; }
.proof { padding: 19px 0; }
.proof:first-of-type { margin-top: 25px; }
.sectors-line { color: #687989; font-size: 13px; line-height: 1.7; margin: 24px 0 0; }
.sectors-line strong { color: #0d2138; }

.cta { padding-top: 82px; padding-bottom: 82px; }
footer { padding-top: 28px; padding-bottom: 28px; }

@media (max-width: 850px) {
  .nav { background: rgba(4,21,42,.96); }
  .hero { min-height: 680px; height: auto; }
  .intro { padding-top: 68px; }
  .services { padding-bottom: 68px; }
  .coverage-copy { padding-top: 66px; padding-bottom: 46px; }
  .port-network { padding-top: 30px; padding-bottom: 44px; }
  .carriers-heading { min-height: 410px; padding-bottom: 86px; }
  .structure { padding-top: 68px; padding-bottom: 68px; }
}

@media (max-width: 520px) {
  .nav { height: 66px; }
  .hero { min-height: 650px; padding-top: 96px; }
  .intro { padding-top: 58px; padding-bottom: 30px; }
  .service { min-height: auto; }
  .port-card { grid-template-columns: 88px minmax(0, 1fr); }
  .port-logo { height: 58px; }
  .carriers-heading { min-height: 430px; padding-top: 58px; }
  .carrier-grid { margin-top: -36px; }
  .carrier-link { min-height: 92px; }
  .structure-photo { min-height: 360px; }
}