/* Hidrospec Ambiental — paleta extraída do logotipo */
:root {
  --marinho: #06294f;
  --azul-escuro: #05325b;
  --azul: #18639a;
  --azul-vivo: #279ce1;
  --azul-claro: #e8f3fb;
  --texto: #1c2b3a;
  --texto-suave: #4a5b6b;
  --fundo: #ffffff;
  --borda: #d6e4f0;
  --raio: 14px;
  --sombra: 0 6px 24px rgba(6, 41, 79, .08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--texto);
  background: var(--fundo);
  -webkit-text-size-adjust: 100%;
}
img { max-width: 100%; height: auto; }
a { color: var(--azul); }
a:hover { color: var(--azul-vivo); }
h1, h2, h3 { line-height: 1.2; color: var(--marinho); margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.estreito > * { max-width: 760px; }

/* ---------- Topo ---------- */
.topo {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--borda);
}
.topo-in { display: flex; align-items: center; justify-content: space-between; min-height: 68px; }
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--marinho); font-weight: 700; font-size: 1.2rem; letter-spacing: .02em; }
.marca small { font-weight: 500; color: var(--azul); font-size: .8em; letter-spacing: .08em; text-transform: uppercase; }
.marca img { display: block; }

.menu { display: flex; align-items: center; gap: 6px; }
.menu a { text-decoration: none; color: var(--marinho); padding: 8px 12px; border-radius: 8px; font-weight: 500; font-size: .98rem; }
.menu a:hover, .menu a.ativo { background: var(--azul-claro); color: var(--azul); }
.menu a.menu-cta { background: var(--azul); color: #fff; margin-left: 6px; }
.menu a.menu-cta:hover { background: var(--marinho); color: #fff; }

.menu-toggle { position: absolute; opacity: 0; pointer-events: none; }
.menu-btn { display: none; width: 44px; height: 44px; cursor: pointer; align-items: center; justify-content: center; }
.menu-btn span, .menu-btn span::before, .menu-btn span::after {
  display: block; width: 24px; height: 2px; background: var(--marinho); border-radius: 2px; position: relative; content: "";
}
.menu-btn span::before { position: absolute; top: -7px; }
.menu-btn span::after { position: absolute; top: 7px; }

@media (max-width: 760px) {
  .menu-btn { display: flex; }
  .menu {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; padding: 12px 20px 18px; border-bottom: 1px solid var(--borda); box-shadow: var(--sombra);
  }
  .menu a { padding: 12px; font-size: 1.05rem; }
  .menu a.menu-cta { margin: 6px 0 0; text-align: center; }
  .menu-toggle:checked ~ .menu { display: flex; }
  .menu-toggle:focus-visible ~ .menu-btn { outline: 2px solid var(--azul-vivo); border-radius: 8px; }
}

/* ---------- Botões ---------- */
.btn {
  display: inline-block; border: 0; cursor: pointer; text-decoration: none; font: inherit; font-weight: 600;
  background: var(--azul-vivo); color: #fff; padding: 13px 24px; border-radius: 999px;
  transition: transform .15s ease, background .15s ease;
}
.btn:hover { background: #1b86c6; color: #fff; transform: translateY(-1px); }
.btn-claro { background: transparent; color: #fff; box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .55); }
.btn-claro:hover { background: rgba(255, 255, 255, .12); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff;
  background:
    radial-gradient(900px 400px at 85% 20%, rgba(39, 156, 225, .45), transparent 60%),
    linear-gradient(135deg, var(--marinho) 0%, var(--azul-escuro) 45%, var(--azul) 100%);
  padding: 64px 0 110px;
}
.hero-in { display: grid; grid-template-columns: 1.3fr .7fr; gap: 32px; align-items: center; }
.hero h1 { color: #fff; }
.sobretitulo { text-transform: uppercase; letter-spacing: .18em; font-size: .8rem; font-weight: 600; color: #9fd3f5; margin-bottom: 14px; }
.lead { font-size: 1.15rem; color: inherit; opacity: .92; max-width: 56ch; }
.acoes { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.hero-logo { display: flex; justify-content: center; }
.hero-logo img {
  width: min(300px, 70%); background: #fff; border-radius: 50%; padding: 18px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .3);
}
.onda { position: absolute; left: 0; bottom: -1px; width: 100%; height: 70px; display: block; }
.onda path { fill: #fff; }

@media (max-width: 760px) {
  .hero { padding: 40px 0 90px; }
  .hero-in { grid-template-columns: 1fr; }
  .hero-logo { order: -1; }
  .hero-logo img { width: 150px; padding: 12px; }
}

/* ---------- Seções ---------- */
.secao { padding: 64px 0; }
.secao-faixa { background: var(--azul-claro); }
.secao-lead { color: var(--texto-suave); font-size: 1.08rem; max-width: 62ch; }
.grade { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; margin-top: 28px; }
.card {
  background: #fff; border: 1px solid var(--borda); border-radius: var(--raio); padding: 24px;
  box-shadow: var(--sombra); transition: transform .2s ease;
}
.card:hover { transform: translateY(-3px); }
.card p { color: var(--texto-suave); margin: 0; font-size: .98rem; }
.num {
  display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px;
  border-radius: 50%; background: var(--azul-claro); color: var(--azul); font-weight: 700; margin-bottom: 14px;
}
.mais { margin-top: 22px; font-weight: 600; }
.mais a { text-decoration: none; }
.duas-col { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: center; }
.lista-check { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.lista-check li {
  background: #fff; border: 1px solid var(--borda); border-radius: 12px; padding: 16px 18px 16px 52px;
  position: relative; font-weight: 600; color: var(--marinho);
}
.lista-check li::before {
  content: ""; position: absolute; left: 18px; top: 50%; width: 20px; height: 20px; margin-top: -10px;
  border-radius: 50%; background: var(--azul-vivo);
}
.lista-check li::after {
  content: ""; position: absolute; left: 25px; top: 50%; width: 5px; height: 10px; margin-top: -7px;
  border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg);
}
@media (max-width: 760px) {
  .secao { padding: 44px 0; }
  .duas-col { grid-template-columns: 1fr; }
}

.cta { background: linear-gradient(135deg, var(--marinho), var(--azul)); color: #fff; padding: 52px 0; }
.cta-in { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin: 0; max-width: 24ch; }

/* ---------- Páginas internas ---------- */
.pagina-topo {
  background: linear-gradient(135deg, var(--marinho), var(--azul)); color: #fff; padding: 52px 0 44px;
}
.pagina-topo h1 { color: #fff; margin-bottom: .3em; }
.conteudo { padding: 52px 0 72px; }
.texto { max-width: 760px; }
.texto h2 { margin-top: 1.6em; font-size: 1.5rem; }
.texto h2:first-child { margin-top: 0; }
.texto ul { padding-left: 1.2em; }
.texto li { margin-bottom: .5em; }

/* ---------- Contato ---------- */
.contato-grade { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.contato-grade .texto { max-width: none; }
.canais { display: grid; gap: 12px; margin-top: 22px; }
.canal {
  display: block; text-decoration: none; background: var(--azul-claro); border-radius: 12px; padding: 16px 18px; color: var(--marinho);
}
.canal strong { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--azul); }
.canal span { font-size: 1.05rem; font-weight: 600; word-break: break-all; }
.canal:hover { background: #d8eaf8; }
.form { background: #fff; border: 1px solid var(--borda); border-radius: var(--raio); padding: 24px; box-shadow: var(--sombra); }
.form label { display: block; font-weight: 600; font-size: .95rem; margin-bottom: 16px; color: var(--marinho); }
.form input, .form select, .form textarea {
  display: block; width: 100%; margin-top: 6px; padding: 12px 14px; font: inherit; color: var(--texto);
  border: 1px solid #b9cde0; border-radius: 10px; background: #fff;
}
.form input:focus, .form select:focus, .form textarea:focus { outline: 2px solid var(--azul-vivo); outline-offset: 1px; border-color: transparent; }
.form-nota { font-size: .85rem; color: var(--texto-suave); margin: 12px 0 0; }
@media (max-width: 760px) { .contato-grade { grid-template-columns: 1fr; gap: 28px; } }

/* ---------- Rodapé ---------- */
.rodape { background: var(--marinho); color: #c8dcef; padding: 40px 0 0; font-size: .95rem; }
.rodape-in { display: flex; justify-content: space-between; gap: 28px; flex-wrap: wrap; }
.rodape-marca { display: flex; gap: 14px; align-items: flex-start; max-width: 420px; }
.rodape-marca img { background: #fff; border-radius: 50%; padding: 5px; }
.rodape-marca strong { color: #fff; font-size: 1.1rem; }
.rodape-marca p { margin: 4px 0 0; }
.rodape-nav { display: flex; flex-wrap: wrap; gap: 6px 20px; align-content: flex-start; }
.rodape-nav a { color: #c8dcef; text-decoration: none; }
.rodape-nav a:hover { color: #fff; text-decoration: underline; }
.copy { margin-top: 32px; padding-top: 18px; padding-bottom: 22px; border-top: 1px solid rgba(255, 255, 255, .12); font-size: .85rem; opacity: .8; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card, .btn { transition: none; }
}