/* ==========================================================================
   Header Component
   ========================================================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);

  background: var(--white);
  box-shadow: var(--shadow-sm);

  transition: all var(--transition-base);
}

.header-transparent {
  background: transparent;
  box-shadow: none;
}

.header-transparent.header-scrolled {
  background: var(--white);
  box-shadow: var(--shadow-md);
}

.header-container {
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: var(--spacing-md) var(--container-padding);

  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================================================
   Logo
   ========================================================================== */

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);

  font-family: var(--font-primary);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--primary-color);

  transition: all var(--transition-base);
}

.header-logo:hover {
  opacity: var(--opacity-hover);
}

.header-logo img {
  height: 40px;
  width: auto;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.header-nav-list {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

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

.header-nav-link {
  display: block;
  padding: var(--spacing-xs) var(--spacing-sm);

  font-family: var(--font-primary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--dark);

  transition: color var(--transition-base);
}

.header-nav-link:hover {
  color: var(--primary-color);
}

.header-nav-link.active {
  color: var(--primary-color);
  font-weight: var(--font-weight-semibold);
}

.header-nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary-color);
}

/* ==========================================================================
   Dropdown Menu (Opcional)
   ========================================================================== */

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

.header-nav-dropdown-toggle::after {
  content: "▼";
  font-size: 10px;
  margin-left: var(--spacing-xs);
}

.header-nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;

  background: var(--white);
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius-md);

  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);

  padding: var(--spacing-sm) 0;
  margin-top: var(--spacing-xs);
}

.header-nav-dropdown:hover .header-nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-nav-dropdown-item {
  padding: var(--spacing-sm) var(--spacing-md);

  font-size: var(--font-size-base);
  color: var(--dark);

  transition: all var(--transition-fast);
}

.header-nav-dropdown-item:hover {
  background: var(--light-gray);
  color: var(--primary-color);
}

/* ==========================================================================
   CTA Button in Header
   ========================================================================== */

.header-cta {
  margin-left: var(--spacing-md);
}

/* ==========================================================================
   Mobile Menu Toggle
   ========================================================================== */

.header-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;

  width: 30px;
  height: 24px;

  background: transparent;
  border: none;
  cursor: pointer;

  padding: 0;
}

.header-toggle-bar {
  width: 100%;
  height: 3px;
  background: var(--dark);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
}

.header-toggle.active .header-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header-toggle.active .header-toggle-bar:nth-child(2) {
  opacity: 0;
}

.header-toggle.active .header-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==========================================================================
   Top Bar (Opcional - Informações de Contato)
   ========================================================================== */

.header-topbar {
  background: var(--primary-dark);
  color: var(--white);
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
}

.header-topbar-container {
  max-width: var(--container-2xl);
  margin: 0 auto;
  padding: 0 var(--container-padding);

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-topbar-info {
  display: flex;
  gap: var(--spacing-lg);
}

.header-topbar-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.header-topbar-social {
  display: flex;
  gap: var(--spacing-sm);
}

.header-topbar-social a {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 28px;
  height: 28px;

  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-full);

  transition: all var(--transition-base);
}

.header-topbar-social a:hover {
  background: var(--white);
  color: var(--primary-dark);
}

/* ==========================================================================
   Responsive - Mobile
   ========================================================================== */

@media (max-width: 1023px) {
  .header-toggle {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;

    flex-direction: column;
    align-items: stretch;
    gap: 0;

    background: var(--white);
    padding: var(--spacing-lg);

    opacity: 0;
    visibility: hidden;
    transform: translateX(100%);
    transition: all var(--transition-base);

    overflow-y: auto;
  }

  .header-nav.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
  }

  .header-nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .header-nav-item {
    border-bottom: 1px solid var(--gray-lighter);
  }

  .header-nav-link {
    display: block;
    padding: var(--spacing-md);
  }

  .header-nav-link.active::after {
    display: none;
  }

  .header-cta {
    margin-left: 0;
    margin-top: var(--spacing-lg);
  }

  .header-cta .btn {
    width: 100%;
  }

  /* Dropdown no Mobile */
  .header-nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--light-gray);
    margin-top: 0;
  }

  .header-topbar-container {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .header-topbar-info {
    flex-direction: column;
    gap: var(--spacing-xs);
  }
}

@media (max-width: 767px) {
  .header-logo {
    font-size: var(--font-size-lg);
  }

  .header-logo img {
    height: 32px;
  }

  .header-topbar {
    display: none;
  }
}