marketplaces/src/app/components/header/header.component.scss

.platform-header {
  background: rgba(117, 121, 124, 0.1);
  padding: 8px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  &--static {
    position: static;
  }
}

.platform-header--centered .platform-header-container {
  justify-content: center;
}

.platform-header-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  gap: 32px;
  min-height: 48px;
}

.platform-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;

  ::ng-deep .logo-img {
    width: 120px;
    height: 38px;
    object-fit: contain;
  }
}

// Navigation Buttons Group
.platform-nav {
  display: flex;
  flex-shrink: 0;
}

.platform-nav-group {
  display: flex;
  align-items: center;
}

.platform-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 32px;
  height: 38px;
  border: 1px solid #d3dad9;
  background: rgba(255, 255, 255, 0.74);
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: var(--font-weight-semibold, 600);
  font-size: var(--font-size-md, 0.9375rem);
  color: #1e3c38;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.3s ease;
  white-space: nowrap;

  &:not(:first-child) {
    border-left: none;
  }

  &:first-child {
    border-radius: 10px 0 0 10px;
  }

  &:last-child {
    border-radius: 0 10px 10px 0;
  }

  &:hover {
    background: #a1b4b5;
    color: #1e3c38;
  }

  &.platform-active {
    background: #497671;
    color: #ffffff;
  }
}

// Search Box
.platform-search-wrapper {
  flex: 1;
  max-width: 200px;
  margin-left: auto;
}

.platform-search-box {
  position: relative;
  width: 100%;
  height: 38px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid #d2dad9;
  border-radius: 19px;
  box-shadow: 0 2px 3px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: 8px;
}

.platform-search-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.platform-search-input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: var(--font-weight-semibold, 600);
  font-size: var(--font-size-md, 0.9375rem);
  color: #828e8d;
  cursor: pointer;

  &::placeholder {
    color: #828e8d;
  }
}

// Actions
.platform-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.platform-ux-btn {
  position: relative;
  width: 34px;
  height: 34px;
  border: 1px solid #d3dad9;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.84);
  color: #1e3c38;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.18s ease, border-color 0.2s ease, background 0.2s ease;
}

.platform-ux-btn:hover {
  transform: translateY(-1px);
  border-color: #497671;
  background: #ffffff;
}

.platform-ux-icon {
  font-size: var(--font-size-md, 0.9375rem);
  line-height: 1;
  font-weight: var(--font-weight-bold, 700);
}

.platform-ux-badge {
  position: absolute;
  right: -6px;
  top: -6px;
  min-width: 16px;
  height: 16px;
  border-radius: var(--radius-full, 999px);
  background: #497671;
  color: #ffffff;
  font-size: 10px;
  font-weight: var(--font-weight-bold, 700);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

.platform-cart-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.3s ease;
  gap: 2px;

  svg {
    width: 36px;
    height: 28px;
  }

  &:hover {
    opacity: 0.85;
  }

  &.platform-cart-active {
    opacity: 1;
  }
}

.platform-cart-icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 28px;
}

.platform-cart-badge {
  position: absolute;
  top: -8px;
  right: -10px;
  background: #497671;
  color: #ffffff;
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: var(--font-weight-bold, 700);
  font-size: 10px;
  line-height: 1;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.platform-cart-total {
  font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-weight: var(--font-weight-bold, 700);
  font-size: 10px;
  line-height: 1;
  color: #1e3c38;
  white-space: nowrap;
}

.platform-lang-selector {
  display: flex;
  align-items: center;
}

// Mobile Menu Backdrop
.platform-menu-backdrop {
  display: none;
}

// Mobile Menu Panel
.platform-mobile-menu {
  display: none;
}

// Mobile Menu Items
.platform-mobile-item {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 395px;
  max-width: 100%;
  height: 42px;
  padding: 15px 26px;
  background: #e9edf1;
  border: 1px solid #d3dad9;
  border-radius: var(--radius-lg, 13px);
  box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.15);
  font-family: 'DM Sans', sans-serif;
  font-size: var(--font-size-lg, 1rem);
  font-weight: var(--font-weight-medium, 500);
  color: #1e3c38;
  text-decoration: none;
  text-align: left;
  appearance: none;
  cursor: pointer;
  transition: background 0.2s ease, transform 0.15s ease;
  box-sizing: border-box;

  &:hover {
    background: #dce2e7;
    transform: translateY(-1px);
  }

  &:active {
    transform: translateY(0);
  }

  &.platform-mobile-active {
    background: #497671;
    color: #ffffff;
    border-color: #497671;
  }

  app-icon:first-child {
    flex-shrink: 0;
  }

  span {
    flex: 1;
  }

  .platform-mobile-chevron {
    flex-shrink: 0;
    margin-left: auto;
  }
}

.platform-mobile-lang {
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-mobile-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-top: 4px;
}

.platform-menu-toggle {
  position: relative;
  z-index: 1001;
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;

  span {
    width: 25px;
    height: 3px;
    background: #1e3c38;
    border-radius: 2px;
    transition: all 0.3s;
  }

  &.active {
    span:nth-child(1) {
      transform: rotate(45deg) translate(7px, 4.5px);
    }

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

    span:nth-child(3) {
      transform: rotate(-45deg) translate(7px, -4.5px);
    }
  }
}

// Mobile Search Icon
.platform-search-mobile {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  margin-left: auto;
  transition: opacity 0.2s ease;

  &:hover {
    opacity: 0.7;
  }
}

// Responsive Design
@media (max-width: 1200px) {
  .platform-header-container {
    padding: 0 32px;
    gap: 32px;
  }

  .platform-nav-btn {
    font-size: var(--font-size-xl, 1.125rem);
    padding: 8px 32px !important;
  }

  .platform-nav-btn-left {
    padding: 8px 32px !important;
  }

  .platform-nav-btn-middle {
    padding: 8px 40px !important;
  }

  .platform-nav-btn-right {
    padding: 8px 28px !important;
  }
}

@media (max-width: 992px) {
  .platform-header-container {
    padding: 0 20px;
    gap: 20px;
  }

  .platform-logo ::ng-deep .logo-img {
    width: 120px;
    height: 40px;
  }

  .platform-nav-btn {
    font-size: var(--font-size-lg, 1rem);
    padding: 8px 24px !important;
  }

  .platform-nav-btn-left {
    padding: 8px 24px !important;
  }

  .platform-nav-btn-middle {
    padding: 8px 28px !important;
  }

  .platform-nav-btn-right {
    padding: 8px 20px !important;
  }

  .platform-search-box {
    height: 42px;
  }

  .platform-search-input {
    font-size: var(--font-size-xl, 1.125rem);
  }
}

@media (max-width: 768px) {
  .platform-header-container {
    gap: 12px;
    padding: 0 16px;
  }

  // Hide desktop nav
  .platform-nav {
    display: none;
  }

  // Hide desktop language selector
  .platform-lang-desktop {
    display: none !important;
  }

  .platform-search-wrapper {
    display: none;
  }

  .platform-search-mobile {
    display: flex;
  }

  .platform-menu-toggle {
    display: flex;
  }

  .platform-logo ::ng-deep .logo-img {
    width: 100px;
    height: 32px;
  }

  // Mobile Menu Backdrop – full-screen, blurred, blocks interaction
  .platform-menu-backdrop {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: 998;
    animation: platform-fade-in 0.25s ease;
  }

  // Mobile Menu Panel
  .platform-mobile-menu {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    position: fixed;
    top: 84px;
    right: 0;
    width: 485px;
    max-width: 100vw;
    padding: 28px 20px 32px;
    background: rgba(245, 242, 249, 0.93);
    border-radius: 0 0 13px 13px;
    box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.25);
    z-index: 999;
    box-sizing: border-box;

    // Hide by default, animate in. `visibility: hidden` (with a matched
    // transition-delay so it only applies once the collapse finishes) keeps
    // the menu's links/buttons out of the Tab order and the accessibility
    // tree while closed — without it they stayed keyboard-focusable and
    // screen-reader-reachable despite being visually collapsed to 0 height.
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.35s ease, visibility 0s linear 0.35s;

    &.platform-mobile-menu-open {
      max-height: calc(100dvh - 84px);
      padding: 28px 20px 32px;
      opacity: 1;
      visibility: visible;
      overflow-y: auto;
      transition: max-height 0.35s ease, opacity 0.25s ease, padding 0.35s ease, visibility 0s linear 0s;
    }
  }

  .platform-mobile-item {
    width: 395px;
    max-width: 100%;
  }

  .platform-mobile-controls {
    margin-top: 4px;
  }
}

@media (max-width: 480px) {
  .platform-mobile-menu {
    width: 100vw;
    border-radius: 0 0 13px 13px;
  }

  .platform-mobile-item {
    width: 100%;
  }
}

@keyframes platform-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}