.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(27, 60, 97, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(74, 144, 217, 0.2);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(27, 60, 97, 0.98);
  box-shadow: var(--shadow-lg);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-accent);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 1.5rem;
  box-shadow: var(--shadow-md);
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
}

.logo-text span {
  color: var(--accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-weight: 500;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.85);
  padding: 10px 18px;
  border-radius: var(--border-radius-sm);
  position: relative;
  transition: all var(--transition-base);
}

.nav-link:hover {
  color: var(--white);
  background: rgba(74, 144, 217, 0.15);
}

.nav-link.active {
  color: var(--white);
  background: rgba(74, 144, 217, 0.2);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--accent);
  border-radius: var(--border-radius-full);
}

.nav-cta {
  margin-left: 16px;
}

.nav-cta .btn {
  padding: 10px 24px;
  font-size: 0.9375rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  border-radius: var(--border-radius-sm);
  transition: background var(--transition-fast);
}

.mobile-toggle:hover {
  background: rgba(74, 144, 217, 0.15);
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--primary);
  padding: 16px;
  border-top: 1px solid rgba(74, 144, 217, 0.2);
  box-shadow: var(--shadow-xl);
}

.mobile-menu.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  padding: 14px 16px;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: rgba(74, 144, 217, 0.2);
  color: var(--white);
}

.mobile-nav-cta {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(74, 144, 217, 0.2);
}

@media (max-width: 992px) {
  .nav-menu {
    display: none;
  }
  
  .nav-cta {
    display: none !important;
  }
  
  .mobile-toggle {
    display: flex;
  }
}

@media (min-width: 993px) {
  #headerCta {
    display: inline-flex !important;
  }
}

@media (max-width: 480px) {
  .logo-text {
    font-size: 1.25rem;
  }

  .logo-icon {
    width: 42px;
    height: 42px;
    font-size: 1.25rem;
  }
}

/* ─── MEGA DROPDOWN ──────────────────────────────────── */

.nav-item-dropdown {
  position: relative;
}

/* bridge invisible que mantém o hover ativo no gap entre o link e o dropdown */
.nav-item-dropdown::before {
  content: '';
  position: absolute;
  top: 100%;
  left: -16px;
  right: -16px;
  height: 18px;
  z-index: 499;
}

.nav-link-has-dropdown {
  display: flex;
  align-items: center;
  gap: 5px;
}

.nav-chevron {
  font-size: 0.65rem !important;
  transition: transform 0.25s ease;
}

.nav-item-dropdown:hover .nav-chevron {
  transform: rotate(180deg);
}

.mega-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 24px 64px rgba(27,60,97,0.18);
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
  transform: translateX(-50%) translateY(8px);
  z-index: 500;
  border: 1px solid rgba(74,144,217,0.1);
}

.nav-item-dropdown:hover .mega-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

/* Soluções dropdown — 2-col grid */
.mega-dropdown-solucoes {
  min-width: 460px;
}

.mega-dropdown-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.mega-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  color: #1b3c61;
  transition: background 0.15s;
}

.mega-item:hover {
  background: #f0f6ff;
}

.mega-item-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #1b3c61, #4a90d9);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  font-size: 1rem;
}

.mega-item-text strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: #1b3c61;
  line-height: 1.3;
}

.mega-item-text span {
  font-size: 0.78rem;
  color: #6b7a8d;
}

.mega-dropdown-footer {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid #e8eff8;
}

.mega-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: #4a90d9;
  transition: gap 0.2s;
}

.mega-footer-link:hover {
  gap: 10px;
}

/* Segmentos dropdown — simple list */
.mega-dropdown-segmentos {
  min-width: 200px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mega-item-simple {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  color: #1b3c61;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background 0.15s, color 0.15s;
}

.mega-item-simple:hover {
  background: #f0f6ff;
  color: #4a90d9;
}

.mega-item-simple i {
  color: #4a90d9;
  width: 16px;
  font-size: 0.85rem;
  text-align: center;
}

/* ─── MOBILE NAV EXPANDABLE ─────────────────────────── */

.mobile-nav-group {
  display: flex;
  flex-direction: column;
}

.mobile-nav-expand {
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: inherit;
}

.mobile-nav-expand .fa-chevron-down {
  font-size: 0.7rem;
  transition: transform 0.25s;
}

.mobile-nav-group.open .fa-chevron-down {
  transform: rotate(180deg);
}

.mobile-nav-sub {
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 6px 0 6px 16px;
  border-left: 2px solid rgba(74,144,217,0.3);
  margin: 4px 0 4px 16px;
}

.mobile-nav-group.open .mobile-nav-sub {
  display: flex;
}

.mobile-nav-sub-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  padding: 8px 12px;
  border-radius: 6px;
  transition: all 0.15s;
}

.mobile-nav-sub-link:hover {
  color: #fff;
  background: rgba(74,144,217,0.15);
}

.mobile-nav-sub-link i {
  color: #4a90d9;
  width: 14px;
  font-size: 0.8rem;
}