/* ─── Header ─────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg);
  box-shadow: 0 2px 16px rgba(0,0,0,.08);
  transition: box-shadow var(--transition);
}
.site-header--scrolled { box-shadow: 0 4px 24px rgba(0,0,0,.14); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: .9rem;
}

/* ── Logo ── */
.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.logo__img {
  display: block;
  height: 56px;
  width: auto;
}
@media (max-width: 480px) {
  .logo__img { height: 46px; }
}

/* ── Nav desktop ── */
.nav-desktop ul {
  display: flex;
  align-items: center;
  gap: .25rem;
}
.nav-desktop a {
  padding: .45rem .75rem;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-desktop a:hover,
.nav-desktop a:focus-visible {
  color: var(--blue-800);
  background: var(--blue-50);
}

/* ── Header actions ── */
.header-actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}

/* ── Hamburger ── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle:hover { background: var(--bg-alt); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Nav mobile ── */
.nav-mobile {
  border-top: 1px solid var(--border);
  padding: 1rem;
  background: var(--bg);
}
.nav-mobile[hidden] { display: none; }
.nav-mobile ul { display: flex; flex-direction: column; gap: .25rem; }
.nav-mobile a {
  display: block;
  padding: .75rem 1rem;
  font-weight: 500;
  color: var(--text);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}
.nav-mobile a:hover { background: var(--blue-50); color: var(--blue-800); }
.nav-mobile__cta {
  margin-top: .75rem;
  padding-top: .75rem;
  border-top: 1px solid var(--border);
}
.nav-mobile__cta .btn-primary { width: 100%; }

/* ── Responsive ── */
/* Faixa intermediária (tablet): esconde o telefone para evitar overflow */
@media (max-width: 1024px) {
  .nav-desktop a { padding: .45rem .6rem; font-size: .86rem; }
  .header-actions .btn-phone { display: none; }
}

/* Tablet/mobile: ativa o menu hambúrguer antes do conteúdo estourar */
@media (max-width: 900px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
}