/* =========================================================
   REFRI ICE — header.css
   Barra superior, cabeçalho fixo e navegação
   ========================================================= */

/* ---------- Barra superior ---------- */
.topbar {
  background: var(--navy-950);
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.84rem;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 40px;
}

.topbar__group {
  display: flex;
  align-items: center;
  gap: 28px;
}

.topbar__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.topbar__item svg {
  width: 15px;
  height: 15px;
  color: var(--sky-500);
}

a.topbar__item:hover {
  color: var(--white);
}

/* ---------- Cabeçalho ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* O desfoque fica numa camada de fundo, e não no próprio cabeçalho:
   backdrop-filter no cabeçalho prenderia o menu mobile (position: fixed)
   dentro da altura dele, em vez de ocupar a tela. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
}

.site-header.is-scrolled {
  border-color: var(--line);
  box-shadow: 0 10px 30px -22px rgba(6, 24, 78, 0.45);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: var(--header-h);
}

/* ---------- Marca ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.brand img {
  width: auto;
  height: 46px;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.45rem;
  letter-spacing: 0.02em;
  color: var(--navy-900);
}

.brand__name span {
  color: var(--sky-500);
}

.brand__tag {
  margin-top: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--navy-900);
  opacity: 0.8;
  letter-spacing: 0.01em;
}

.brand--light .brand__name,
.brand--light .brand__tag {
  color: var(--white);
}

/* ---------- Navegação ---------- */
.main-nav__list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.main-nav__list a {
  display: block;
  padding: 10px 14px;
  border-radius: 999px;
  font-weight: 500;
  color: var(--text);
  transition: color 0.2s ease, background-color 0.2s ease;
}

.main-nav__list a:hover {
  color: var(--navy-900);
  background: var(--ice-50);
}

.main-nav__list a.is-active {
  color: var(--navy-900);
  font-weight: 600;
  background: var(--sky-100);
}

.main-nav__cta {
  display: none;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  line-height: 1.15;
}

.header-phone__icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(37, 211, 102, 0.14);
  color: var(--wa-dark);
}

.header-phone__icon svg {
  width: 20px;
  height: 20px;
}

.header-phone small {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
}

.header-phone strong {
  font-size: 0.98rem;
  color: var(--ink);
  white-space: nowrap;
}

.header-phone:hover strong {
  color: var(--wa-dark);
}

/* ---------- Botão do menu mobile ---------- */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--line);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- Responsivo ---------- */
@media (max-width: 1140px) {
  .header-phone {
    display: none;
  }
}

@media (max-width: 900px) {
  .topbar__hide-md {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--nav-top, var(--header-h));
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    padding: 20px var(--gutter) 32px;
    border-top: 1px solid var(--line);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
  }

  .main-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
  }

  .main-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .main-nav__list a {
    font-size: 1.15rem;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
  }

  .main-nav__cta {
    display: flex;
    margin-top: 20px;
  }
}

@media (max-width: 600px) {
  .topbar {
    display: none;
  }

  :root {
    --header-h: 66px;
  }

  .brand img {
    height: 40px;
  }

  .brand__name {
    font-size: 1.25rem;
  }

  .site-header__actions .btn {
    display: none;
  }
}