/* ========================================
   SHARED HEADER STYLES
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.header--transparent {
  background-color: transparent;
}

.header--solid,
.header--transparent:hover,
.header--dropdown-open {
  background-color: var(--color-white);
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header--dropdown-open {
  box-shadow: none;
  border-bottom: 1px solid var(--color-gray-light);
}

.header__logo {
  flex-shrink: 0;
}

.header__logo svg {
  height: 40px;
  width: auto;
  fill: var(--color-white);
  transition: fill 0.3s ease;
}

:is(.header--solid, .header--transparent:hover, .header--dropdown-open) .header__logo svg {
  fill: var(--color-orange);
}

.header__nav {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.header__nav-list {
  list-style: none;
  display: flex;
  gap: 40px;
  align-items: center;
}

.header__nav-item {
  position: relative;
}

.header__nav-item--active .header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-orange);
  border-radius: 2px;
}

.header__nav-link {
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-warm-offwhite);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.3s ease;
  white-space: nowrap;
}

:is(.header--solid, .header--transparent:hover, .header--dropdown-open) .header__nav-link {
  color: var(--color-text-secondary);
}

.header__nav-arrow {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
  transition: transform 0.3s ease;
}

.header__nav-item.open .header__nav-arrow {
  transform: rotate(-135deg);
  margin-top: 2px;
}

.header__contact-btn {
  font-family: var(--font-nav);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-white);
  padding: 8px 15px;
  border: 3px solid rgba(234, 88, 12, 0.79);
  border-radius: 5px;
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.header__contact-btn:hover {
  background-color: var(--color-orange);
  color: var(--color-white);
  border-color: var(--color-orange);
}

:is(.header--solid, .header--transparent:hover, .header--dropdown-open) .header__contact-btn {
  color: var(--color-white);
  background-color: var(--color-orange);
  border-color: rgba(234, 88, 12, 0.79);
}

:is(.header--solid, .header--transparent:hover, .header--dropdown-open) .header__contact-btn:hover {
  background-color: var(--color-orange-hover);
  border-color: var(--color-orange-hover);
}

/* ---- Dropdown mega-menus ---- */
.header__dropdown {
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  background: var(--color-white);
  box-shadow: none;
  border-bottom: 1px solid var(--color-gray-light);
  padding: 48px 60px;
  display: none;
  z-index: 999;
}

.header__dropdown.open {
  display: flex;
}

.header__dropdown-columns {
  display: flex;
  gap: 80px;
  flex: 1;
}

.header__dropdown-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.header__dropdown-heading {
  font-family: var(--font-nav);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 8px;
}

.header__dropdown-link {
  font-family: var(--font-nav);
  font-size: 17px;
  font-weight: 400;
  color: var(--color-orange);
  transition: color 0.2s;
}

.header__dropdown-link:hover {
  color: var(--color-orange-hover);
}

.header__dropdown-link--external::after {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-left: 6px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23EA580C' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 13v6a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h6'/%3E%3Cpolyline points='15 3 21 3 21 9'/%3E%3Cline x1='10' y1='14' x2='21' y2='3'/%3E%3C/svg%3E") center / contain no-repeat;
  vertical-align: middle;
}

.header__dropdown-image {
  width: 100%;
  max-width: 500px;
  height: auto;
  border-radius: 8px;
  object-fit: cover;
  margin-left: auto;
  flex-shrink: 0;
}

#dropdown-resources .header__dropdown-columns {
  justify-content: center;
}

/* Hamburger */
.header__hamburger {
  display: none;
  position: relative;
  width: 32px;
  height: 24px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.header__hamburger span {
  display: block;
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 2px;
  margin-top: -1px;
  background: var(--color-white);
  transition: transform 0.3s ease, opacity 0.2s ease, background 0.3s ease;
}

.header__hamburger span:nth-child(1) { transform: translateY(-7px); }
.header__hamburger span:nth-child(2) { transform: translateY(0); }
.header__hamburger span:nth-child(3) { transform: translateY(7px); }

:is(.header--solid, .header--transparent:hover, .header--dropdown-open) .header__hamburger span,
.header__hamburger.open span {
  background: var(--color-black);
}

.header__hamburger.open span:nth-child(1) {
  transform: translateY(0) rotate(45deg);
}

.header__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.header__hamburger.open span:nth-child(3) {
  transform: translateY(0) rotate(-45deg);
}

/* Mobile overlay menu */
.header__mobile-menu {
  display: none;
  position: fixed;
  top: 80px;
  left: 0;
  width: 100%;
  height: calc(100vh - 80px);
  background: var(--color-white);
  z-index: 998;
  flex-direction: column;
  padding: 32px 24px;
  overflow-y: auto;
}

.header__mobile-menu.open {
  display: flex;
}

.header__mobile-menu-link {
  font-family: var(--font-nav);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-black);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-divider-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.header__mobile-menu-link .header__nav-arrow {
  border-color: var(--color-black);
}

.header__mobile-submenu {
  display: none;
  flex-direction: column;
  padding: 0 0 16px 16px;
}

.header__mobile-submenu.open {
  display: flex;
}

.header__mobile-submenu-heading {
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-black);
  padding: 12px 0 4px;
}

.header__mobile-submenu-link {
  font-family: var(--font-nav);
  font-size: 15px;
  font-weight: 400;
  color: var(--color-orange);
  padding: 8px 0;
}

.header__mobile-contact {
  font-family: var(--font-nav);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-black);
  padding: 10px 24px;
  border: 3px solid rgba(234, 88, 12, 0.79);
  border-radius: 5px;
  background: transparent;
  align-self: center;
  margin-top: 24px;
  text-align: center;
}

/* ========================================
   HEADER RESPONSIVE - TABLET
   ======================================== */
@media (max-width: 1024px) {
  .header__nav-list {
    display: none;
  }

  .header__contact-btn {
    display: none;
  }

  .header__dropdown {
    display: none !important;
  }

  .header__hamburger {
    display: flex;
  }

  .header__mobile-menu.open {
    display: flex;
  }
}

/* ========================================
   HEADER RESPONSIVE - MOBILE
   ======================================== */
@media (max-width: 768px) {
  .header {
    padding: 0 20px;
  }
}