/* =====================================================================
   COMPONENTES — header, navegação, footer, whatsapp
===================================================================== */

/* ---------- HEADER ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.25s var(--ease);
}
.site-header[data-scrolled="true"] { box-shadow: var(--shadow-md); }

/* Barra técnica superior */
.topbar {
  background: var(--navy-900);
  color: var(--steel-300);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 34px;
}
.topbar__item { color: var(--steel-300); transition: color 0.15s var(--ease); }
.topbar__item:hover { color: var(--white); }
.topbar__sep { color: var(--steel-600); }
.topbar__cnpj { margin-left: auto; color: var(--steel-500); }
@media (max-width: 640px) {
  .topbar__cnpj { display: none; }
  .topbar__inner { justify-content: center; }
}

/* Barra principal */
.navbar__inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: 76px;
}

/* Marca */
.brand { display: inline-flex; align-items: center; gap: 0.7rem; }
.brand__mark {
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  background: var(--navy-900);
  color: var(--white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.brand__mark::after { /* traço aço vertical, aludindo ao prédio da logo */
  content: "";
  position: absolute;
  left: 8px; top: 8px; bottom: 8px;
  width: 3px;
  background: linear-gradient(var(--steel-300), var(--steel-500));
}
.brand__mark--lg { width: 56px; height: 56px; font-size: 2rem; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__text strong {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  color: var(--navy-900);
}
.brand__text em {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.6rem;
  letter-spacing: 0.42em;
  color: var(--steel-600);
  margin-top: 3px;
}

/* Navegação */
.nav { margin-left: auto; }
.nav__list { display: flex; align-items: center; gap: 1.75rem; list-style: none; margin: 0; padding: 0; }
.nav__link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--navy-800);
  position: relative;
  padding: 0.25rem 0;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--signal);
  transition: width 0.2s var(--ease);
}
.nav__link:hover::after, .nav__link:focus-visible::after { width: 100%; }

.navbar__actions { display: flex; align-items: center; gap: 0.75rem; }
.navbar__cta { padding: 0.7rem 1.15rem; }

/* Botão hambúrguer */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
}
.nav-toggle__bars, .nav-toggle__bars::before, .nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 50%; top: 50%;
  width: 20px; height: 2px;
  background: var(--navy-900);
  transform: translate(-50%, -50%);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle__bars::before { transform: translate(-50%, -8px); }
.nav-toggle__bars::after  { transform: translate(-50%, 6px); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translate(-50%, -50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { transform: translate(-50%, -50%) rotate(-45deg); }

/* ---------- MOBILE MENU ---------- */
@media (max-width: 900px) {
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 320px);
    background: var(--white);
    border-left: 1px solid var(--line);
    padding: 6rem var(--gutter) 2rem;
    transform: translateX(100%);
    transition: transform 0.3s var(--ease);
    box-shadow: var(--shadow-lg);
  }
  body[data-nav-open="true"] .nav { transform: translateX(0); }
  .nav__list { flex-direction: column; align-items: flex-start; gap: 1.25rem; }
  .nav__link { font-size: 1.1rem; }
  .nav-toggle { display: block; z-index: 101; }
  .navbar__cta { display: none; }
  body[data-nav-open="true"]::after {
    content: "";
    position: fixed; inset: 0;
    background: rgba(11, 37, 69, 0.4);
    z-index: 99;
  }
}

/* ---------- FOOTER ---------- */
.site-footer { background: var(--navy-900); color: var(--steel-300); margin-top: var(--section-y); }
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  padding-block: clamp(3rem, 6vw, 5rem);
}
.footer__brand .brand__mark { margin-bottom: 1.25rem; }
.footer__logo {
  display: block;
  height: 44px;
  width: auto;
  margin-bottom: 1.25rem;
  /* garante versão clara sobre o fundo navy do rodapé */
  filter: brightness(0) invert(1);
  opacity: 0.92;
}
.footer__tagline { color: var(--steel-300); max-width: 34ch; margin-bottom: 1.5rem; font-size: 0.95rem; }
.footer__title {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1rem;
}
.footer__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; font-size: 0.92rem; }
.footer__list a { color: var(--steel-300); transition: color 0.15s var(--ease); }
.footer__list a:hover { color: var(--white); }
.footer__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--steel-500);
  display: inline-block;
  width: 2.4rem;
}
.footer__list--services li { color: var(--steel-300); }

.footer__bottom { border-top: 1px solid rgba(255,255,255,0.08); }
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-block: 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--steel-500);
}
@media (max-width: 820px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 520px) {
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* ---------- WHATSAPP FLUTUANTE ---------- */
.wa-float {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 90;
  width: 56px; height: 56px;
  display: grid; place-items: center;
  background: #1FA855;
  color: #fff;
  border-radius: 50%;
  box-shadow: var(--shadow-lg);
  transition: transform 0.2s var(--ease);
}
.wa-float:hover { transform: scale(1.06); }
.wa-float svg { width: 30px; height: 30px; }