/* ============================================================================
   ZENVIK PORTAL HEADER REDESIGN
   Modern floating sticky header with notification strip
   ============================================================================ */

/* Color Variables */
:root {
  --zt-header-primary-blue: #043a7e;
  --zt-header-accent-gold: #dfa408;
  --zt-header-gold-secondary: #7a6200;
  --zt-header-white: #ffffff;
  --zt-header-light-gray: #f8fafc;
  --zt-header-text-dark: #0f172a;
  --zt-header-text-gray: #64748b;
  --zt-header-border: #e2e8f0;
  --zt-header-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --zt-header-shadow-soft: 0 4px 6px rgba(0, 0, 0, 0.07);
}

/* ============================================================================
   LAYER 1: NOTIFICATION STRIP
   ============================================================================ */

.zt-notification-strip {
  background-color: var(--zt-header-primary-blue);
  color: var(--zt-header-white);
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  position: relative;
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.zt-notification-strip.hidden {
  display: none !important;
}

.zt-notification-strip__content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: 1280px;
  margin: 0 auto;
}

.zt-notification-strip__text {
  flex: 1;
  line-height: 1.4;
}

.zt-notification-strip__link {
  color: var(--zt-header-accent-gold);
  text-decoration: none;
  font-weight: 600;
  white-space: nowrap;
  transition: opacity 0.2s ease;
}

.zt-notification-strip__link:hover {
  opacity: 0.8;
}

.zt-notification-strip__close {
  background: none;
  border: none;
  color: var(--zt-header-white);
  cursor: pointer;
  font-size: 16px;
  padding: 0;
  opacity: 0.7;
  transition: opacity 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
}

.zt-notification-strip__close:hover {
  opacity: 1;
}

/* ============================================================================
   LAYER 2: FLOATING STICKY HEADER
   ============================================================================ */

.zt-header {
  background-color: var(--zt-header-white);
  border-bottom: 1px solid var(--zt-header-border);
  box-shadow: var(--zt-header-shadow-soft);
  position: sticky;
  top: 0;
  z-index: 999;
  padding: 12px 0;
  transition: all 0.3s ease;
}

.zt-header.with-topbar {
  position: sticky;
}

.zt-header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px;
  min-height: 64px;
}

/* ============================================================================
   LEFT SECTION: LOGO AND HOME
   ============================================================================ */

.zt-header__left {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-shrink: 0;
}

.zt-header__logo {
  display: flex;
  align-items: center;
  height: 42px;
}

.zt-header__logo img {
  height: 34px;
  width: auto;
  max-width: 190px;
  object-fit: contain;
}

.zt-header__logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.zt-header__logo-link:hover {
  opacity: 0.8;
}

.zt-header__home {
  display: none;
  align-items: center;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.zt-header__home:hover {
  background-color: var(--zt-header-light-gray);
  color: var(--zt-header-primary-blue);
}

@media (min-width: 768px) {
  .zt-header__home {
    display: flex;
  }
}

/* ============================================================================
   CENTER SECTION: NAVIGATION
   ============================================================================ */

.zt-header__center {
  display: none;
  align-items: center;
  gap: 8px;
  flex: 1;
  justify-content: center;
}

@media (min-width: 1024px) {
  .zt-header__center {
    display: flex;
  }
}

.zt-header__nav-item {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s ease;
  position: relative;
  white-space: nowrap;
}

.zt-header__nav-item:hover {
  background-color: var(--zt-header-light-gray);
  color: var(--zt-header-primary-blue);
}

.zt-header__nav-item.active {
  color: var(--zt-header-primary-blue);
  background-color: var(--zt-header-light-gray);
}

.zt-header__nav-item--dropdown {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.zt-header__nav-item--dropdown i {
  font-size: 12px;
  transition: transform 0.2s ease;
}

.zt-header__nav-item--dropdown.open i {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.zt-header__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: var(--zt-header-white);
  border: 1px solid var(--zt-header-border);
  border-radius: 8px;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
  min-width: 200px;
  margin-top: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  pointer-events: none;
}

.zt-header__nav-item--dropdown.open ~ .zt-header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.zt-header__dropdown-item {
  display: block;
  padding: 12px 16px;
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--zt-header-border);
}

.zt-header__dropdown-item:last-child {
  border-bottom: none;
}

.zt-header__dropdown-item:hover {
  background-color: var(--zt-header-light-gray);
  color: var(--zt-header-primary-blue);
  padding-left: 20px;
}

.zt-header__dropdown-item i {
  margin-right: 8px;
  font-size: 12px;
  width: 16px;
  text-align: center;
}

/* ============================================================================
   RIGHT SECTION: ACTIONS AND USER MENU
   ============================================================================ */

.zt-header__right {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

/* Knowledgebase Search */
.zt-header__search {
  display: none;
  align-items: center;
}

@media (min-width: 1280px) {
  .zt-header__search {
    display: flex;
  }
}

.zt-header__search-form {
  display: flex;
  align-items: center;
  background-color: var(--zt-header-light-gray);
  border: 1px solid var(--zt-header-border);
  border-radius: 6px;
  padding: 6px 10px;
  transition: all 0.2s ease;
}

.zt-header__search-form:focus-within {
  border-color: var(--zt-header-primary-blue);
  background-color: var(--zt-header-white);
  box-shadow: 0 0 0 3px rgba(4, 58, 126, 0.1);
}

.zt-header__search-input {
  background: none;
  border: none;
  outline: none;
  font-size: 13px;
  padding: 4px 8px;
  width: 140px;
  color: var(--zt-header-text-dark);
}

.zt-header__search-input::placeholder {
  color: var(--zt-header-text-gray);
}

.zt-header__search-button {
  background: none;
  border: none;
  color: var(--zt-header-text-gray);
  cursor: pointer;
  font-size: 14px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease;
}

.zt-header__search-button:hover {
  color: var(--zt-header-primary-blue);
}

/* Shopping Cart */
.zt-header__cart {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background-color: var(--zt-header-light-gray);
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 16px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.zt-header__cart:hover {
  background-color: var(--zt-header-border);
  color: var(--zt-header-primary-blue);
}

.zt-header__cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background-color: var(--zt-header-accent-gold);
  color: var(--zt-header-white);
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* User Menu */
.zt-header__user {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.zt-header__user:hover {
  background-color: var(--zt-header-light-gray);
  color: var(--zt-header-primary-blue);
}

.zt-header__user-name {
  display: none;
  white-space: nowrap;
}

@media (min-width: 640px) {
  .zt-header__user-name {
    display: inline;
  }
}

.zt-header__user-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--zt-header-primary-blue);
  border-radius: 50%;
  color: var(--zt-header-white);
  font-size: 14px;
}

/* User Dropdown Menu */
.zt-header__user-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--zt-header-white);
  border: 1px solid var(--zt-header-border);
  border-radius: 8px;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.1);
  min-width: 180px;
  margin-top: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.2s ease;
  pointer-events: none;
  z-index: 1001;
}

.zt-header__user.open ~ .zt-header__user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.zt-header__user-dropdown-item {
  display: block;
  padding: 12px 16px;
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s ease;
  border-bottom: 1px solid var(--zt-header-border);
}

.zt-header__user-dropdown-item:last-child {
  border-bottom: none;
}

.zt-header__user-dropdown-item:hover {
  background-color: var(--zt-header-light-gray);
  color: var(--zt-header-primary-blue);
  padding-left: 20px;
}

.zt-header__user-dropdown-item i {
  margin-right: 8px;
  font-size: 12px;
  width: 16px;
  text-align: center;
}

/* Mobile Menu Button */
.zt-header__menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  color: var(--zt-header-text-dark);
  cursor: pointer;
  font-size: 18px;
  transition: all 0.2s ease;
}

.zt-header__menu-toggle:hover {
  color: var(--zt-header-primary-blue);
}

@media (min-width: 1024px) {
  .zt-header__menu-toggle {
    display: none;
  }
}

/* Mobile Navigation */
.zt-header__mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--zt-header-white);
  border-bottom: 1px solid var(--zt-header-border);
  padding: 16px;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  flex-direction: column;
  gap: 8px;
}

.zt-header__mobile-nav.open {
  display: flex;
}

@media (min-width: 1024px) {
  .zt-header__mobile-nav {
    display: none !important;
  }
}

.zt-header__mobile-nav-item {
  display: block;
  padding: 12px 16px;
  color: var(--zt-header-text-dark);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border-radius: 6px;
  transition: all 0.2s ease;
}

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

/* ============================================================================
   RESPONSIVE ADJUSTMENTS
   ============================================================================ */

@media (max-width: 767px) {
  .zt-header__container {
    min-height: 56px;
    padding: 0 12px;
  }

  .zt-header__left {
    gap: 12px;
  }

  .zt-header__logo img {
    height: 28px;
    max-width: 150px;
  }

  .zt-header__search {
    display: none !important;
  }

  .zt-header__center {
    display: none !important;
  }

  .zt-header__right {
    gap: 8px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .zt-header__search {
    display: none;
  }

  .zt-header__center {
    display: none !important;
  }
}

/* ============================================================================
   UTILITY CLASSES
   ============================================================================ */

.zt-header-spacer {
  height: 64px;
}

@media (max-width: 767px) {
  .zt-header-spacer {
    height: 56px;
  }
}

/* Badge styling for cart and notifications */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background-color: var(--zt-header-accent-gold);
  color: var(--zt-header-white);
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}