/* ==========================================================================
   Header — two-row sticky site header: utility bar (top) + main row (bottom).
   Responsive: utility bar hidden and hamburger shown below 1024 px.
   Compact mode: utility bar slides off-screen when the page is scrolled.
   All values via tokens; no hardcoded colours or sizes.
   ========================================================================== */


/* --------------------------------------------------------------------------
   Outer shell — sticky, stacks above all page content
-------------------------------------------------------------------------- */

.header {
  position: sticky;
  top: var(--ticker-height);
  z-index: var(--z-header);
  background-color: var(--color-surface);
  /* top transitions when compact class is toggled */
  transition: top var(--duration-slow) var(--ease-in-out);
}

/* Compact mode — active while page is scrolled.
   --header-utility-height is set by header-scroll.js to the measured bar height.
   Offsetting top by that amount lets the utility bar slide above the viewport
   naturally via sticky positioning; no overflow:hidden needed. */
.header--compact {
  top: calc(var(--ticker-height) - var(--header-utility-height, 34px));
}


/* --------------------------------------------------------------------------
   Shared: constrained inner wrapper used by both rows
-------------------------------------------------------------------------- */

.header__utility-inner,
.header__main-inner {
  align-items: center;
  max-width: 1280px;
  margin-inline: auto;
  /* Fluid: 16 px at narrow viewports, 24 px at 1200 px+ */
  padding-inline: clamp(var(--space-4), 2vw, var(--space-6));
}

.header__utility-inner {
  display: flex;
}

/* Grid layout: logo (1fr, left) | nav (auto, true center) | hamburger (1fr, right)
   Using equal side columns ensures the nav is centered relative to the full header width,
   not just the space after the logo. */
.header__main-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
}


/* ==========================================================================
   ROW 1: Utility bar
========================================================================== */

.header__utility-bar {
  background-color: var(--color-neutral-900);
  border-bottom: 1px solid rgb(255 255 255 / 0.06);
}

.header__utility-inner {
  justify-content: space-between;
  padding-block: var(--space-2);
  gap: var(--space-4);
}

/* Contact links ---------------------------------------------------------- */

.header__contact {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.header__contact-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-neutral-400);
  font-size: var(--font-size-xs);
  text-decoration: none;
  transition: var(--transition-colors);
}

.header__contact-link:hover,
.header__contact-link:focus-visible {
  color: var(--color-neutral-100);
}

/* Utility nav ------------------------------------------------------------ */

.header__utility-list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.header__utility-item {
  position: relative; /* anchor for .header__dropdown */
}

.header__account-guest {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

/* Shared styles for Account and other utility-bar buttons */
.header__utility-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding-block: var(--space-1);
  padding-inline: var(--space-3);
  color: var(--color-neutral-300);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
}

.header__utility-btn:hover,
.header__utility-btn[aria-expanded="true"] {
  color: #ffffff;
  background-color: rgb(255 255 255 / 0.08);
}

/* Guest auth buttons — Log In (ghost outline) and Register (primary filled) */
.header__utility-btn--login {
  color: var(--color-neutral-200);
  border: 1px solid rgb(255 255 255 / 0.18);
}

.header__utility-btn--login:hover {
  color: #ffffff;
  background-color: rgb(255 255 255 / 0.08);
  border-color: rgb(255 255 255 / 0.32);
}

.header__utility-btn--register {
  color: #ffffff;
  font-weight: var(--font-weight-semibold);
  background-color: var(--color-primary-600);
  border: 1px solid transparent;
}

.header__utility-btn--register:hover {
  color: #ffffff;
  background-color: var(--color-primary-500);
  background-image: none;
}

/* Language switcher ------------------------------------------------------ */

.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.lang-switcher__sep {
  color: var(--color-neutral-600);
  font-size: var(--font-size-xs);
  line-height: 1;
  pointer-events: none;
}

.lang-switcher__option {
  padding-block: var(--space-1);
  padding-inline: var(--space-2);
  color: var(--color-neutral-400);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  letter-spacing: var(--tracking-widest);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition-colors);
}

.lang-switcher__option:hover {
  color: #ffffff;
}

.lang-switcher__option--active {
  color: #ffffff;
  font-weight: var(--font-weight-semibold);
}

/* Cart button ------------------------------------------------------------ */

.cart-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding-block: var(--space-1);
  padding-inline: var(--space-3);
  color: var(--color-neutral-300);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
}

.cart-btn:hover,
.cart-btn[aria-expanded="true"] {
  color: #ffffff;
  background-color: rgb(255 255 255 / 0.08);
}

.cart-btn__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.125rem;
  height: 1.125rem;
  padding-inline: 3px;
  background-color: var(--color-primary-500);
  color: #ffffff;
  font-size: 10px;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  border-radius: var(--radius-full);
}

/* Utility-bar dropdown panel --------------------------------------------- */

.header__dropdown {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  z-index: var(--z-dropdown);
  min-width: 14rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);

  /* Closed state — [inert] prevents keyboard access; visibility hides from AT */
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-6px);
  transition:
    opacity    var(--duration-normal) var(--ease-out),
    transform  var(--duration-normal) var(--ease-out),
    visibility 0s linear var(--duration-normal);
}

.header__dropdown--open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  transition:
    opacity    var(--duration-normal) var(--ease-out),
    transform  var(--duration-normal) var(--ease-out),
    visibility 0s linear 0s;
}

/* Chevron inside utility-bar trigger buttons (language switcher, etc.) */
.header__utility-chevron {
  flex-shrink: 0;
  transition: transform var(--duration-fast) var(--ease-out);
}

.header__utility-btn[aria-expanded="true"] .header__utility-chevron {
  transform: rotate(180deg);
}


/* --------------------------------------------------------------------------
   Account dropdown — list of navigation links
-------------------------------------------------------------------------- */

.util-drop__link {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  text-decoration: none;
  white-space: nowrap;
  transition: var(--transition-colors);
}

.util-drop__link:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-primary-700);
}

.util-drop__link--danger {
  color: var(--color-error-700);
}

.util-drop__link--danger:hover {
  background-color: var(--color-error-100);
  color: var(--color-error-700);
}

.util-drop__sep {
  height: 1px;
  background-color: var(--color-border);
  margin-block: var(--space-1);
}


/* --------------------------------------------------------------------------
   Cart dropdown — empty state, totals, action buttons
-------------------------------------------------------------------------- */

.cart-drop {
  min-width: 18rem;
  padding: var(--space-4);
}

.cart-drop__empty {
  text-align: center;
  padding-block: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0;
}

.cart-drop__totals {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
  margin-top: var(--space-2);
}

.cart-drop__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-4);
  padding-block: var(--space-1);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.cart-drop__row--total {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-1);
  padding-top: var(--space-2);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.cart-drop__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding-block: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

.cart-drop__item-info {
  flex: 1;
  min-width: 0;
}

.cart-drop__item-name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cart-drop__item-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin: 0;
}

.cart-drop__item-price {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  white-space: nowrap;
}

.cart-drop__item-unit {
  font-weight: var(--font-weight-regular);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.cart-drop__item-remove {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  font-size: var(--font-size-base);
  line-height: 1;
  transition: var(--transition-colors);
}

.cart-drop__item-remove:hover {
  background-color: var(--color-error-100);
  color: var(--color-error-700);
}

.cart-drop__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.cart-drop__actions .btn {
  width: 100%;
}


/* --------------------------------------------------------------------------
   Language dropdown — NL / EN options with active checkmark
-------------------------------------------------------------------------- */

.lang-drop {
  min-width: 10rem;
}

.lang-drop__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-decoration: none;
  transition: var(--transition-colors);
}

.lang-drop__link:hover {
  background-color: var(--color-bg-subtle);
  color: var(--color-text);
}

.lang-drop__link[aria-current="page"] {
  color: var(--color-primary-700);
  background-color: var(--color-primary-50);
}

.lang-drop__check {
  flex-shrink: 0;
  color: var(--color-primary-600);
}

/* Check mark hidden on non-active options; setLanguage() manages aria-current */
.lang-drop__link:not([aria-current="page"]) .lang-drop__check {
  visibility: hidden;
}


/* ==========================================================================
   ROW 2: Main header row
========================================================================== */

.header__main-row {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.header--compact .header__main-row {
  box-shadow: var(--shadow-lg);
}

.header__main-inner {
  padding-block: var(--space-4);
  /* Fluid: 16 px gap at 1024 px, 32 px at 1280 px+ */
  gap: clamp(var(--space-4), 2.5vw, var(--space-8));
  transition: padding-block var(--duration-normal) var(--ease-out);
}

.header--compact .header__main-inner {
  padding-block: var(--space-2);
}

/* Logo ------------------------------------------------------------------- */

.header__logo-link {
  grid-column: 1;
  justify-self: start;
  display: inline-flex;
  align-items: center;
}

/* PNG logo image — filter turns all pixels white */
.header__logo-img {
  display: block;
  height: 64px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: opacity var(--duration-fast) var(--ease-default);
}

.header__logo-link:hover .header__logo-img,
.mobile-nav__logo-link:hover .header__logo-img {
  opacity: 0.8;
}

/* Slightly smaller in compact/scrolled mode */
.header--compact .header__logo-img {
  height: 48px;
}

/* Primary navigation ----------------------------------------------------- */

.header__nav {
  grid-column: 2;
  display: flex;
  justify-content: center;
  min-width: 0;
}

/* Header actions: domain search + CTA ------------------------------------ */

.header__actions {
  flex-shrink: 0;
}

.domain-search {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.domain-search__row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.domain-search__field {
  position: relative;
}

.domain-search__input {
  display: block;
  /* Fluid: 140 px at 1024 px, 260 px at ~1733 px. Mobile overrides to 100% below. */
  width: clamp(140px, 15vw, 260px);
  height: 42px;
  padding-inline: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease-default),
              box-shadow var(--duration-fast) var(--ease-default);
  /* Remove Safari's native search field styling */
  -webkit-appearance: none;
  appearance: none;
}

.domain-search__input::placeholder {
  color: var(--color-text-subtle);
}

.domain-search__input:hover {
  border-color: var(--color-border-strong);
}

.domain-search__input:focus {
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-primary-glow);
}

/* Extension chips — quick TLD selectors */

.domain-search__chips {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.domain-search__chip {
  padding-block: var(--space-1);
  padding-inline: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  /* neutral-600 (#475569) gives ≈7:1 on bg-subtle — neutral-500 only ≈4.35:1 which fails AA at 12 px */
  color: var(--color-neutral-600);
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-colors);
}

.domain-search__chip:hover,
.domain-search__chip:focus-visible {
  color: var(--color-primary-700);
  background-color: var(--color-primary-50);
  border-color: var(--color-primary-300);
}

/* Inline validation error — uses role="alert" so content changes are announced */

.domain-search__error {
  margin: 0;
  font-size: var(--font-size-xs);
  color: var(--color-error-700);
}


/* --------------------------------------------------------------------------
   Social media icons — utility bar, right of contact links
-------------------------------------------------------------------------- */

.header__social {
  display: inline-flex;
  align-items: center;
  list-style: none;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  /* Visually separate from the contact links */
  padding-inline-start: var(--space-3);
  border-inline-start: 1px solid rgb(255 255 255 / 0.1);
}

.header__social-icon {
  position: relative;
}

.header__social-icon a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background-color: rgb(255 255 255 / 0.08);
  color: var(--color-neutral-400);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  text-decoration: none;
}

.header__social-tooltip {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  background: #fff;
  color: #fff;
  padding: 3px 7px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.header__social-tooltip::before {
  position: absolute;
  content: "";
  height: 6px;
  width: 6px;
  background: #fff;
  top: -3px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.header__social-icon a:hover .header__social-tooltip,
.header__social-icon a:focus-visible .header__social-tooltip {
  bottom: -34px;
  opacity: 1;
  pointer-events: auto;
}

/* Per-platform hover colours */

.header__social-icon--facebook a:hover,
.header__social-icon--facebook a:focus-visible {
  background-color: #1877f2;
  color: #fff;
}
.header__social-icon--facebook a:hover .header__social-tooltip,
.header__social-icon--facebook a:hover .header__social-tooltip::before,
.header__social-icon--facebook a:focus-visible .header__social-tooltip,
.header__social-icon--facebook a:focus-visible .header__social-tooltip::before {
  background: #1877f2;
  color: #fff;
}

.header__social-icon--twitter a:hover,
.header__social-icon--twitter a:focus-visible {
  background-color: #1da1f2;
  color: #fff;
}
.header__social-icon--twitter a:hover .header__social-tooltip,
.header__social-icon--twitter a:hover .header__social-tooltip::before,
.header__social-icon--twitter a:focus-visible .header__social-tooltip,
.header__social-icon--twitter a:focus-visible .header__social-tooltip::before {
  background: #1da1f2;
  color: #fff;
}

.header__social-icon--instagram a:hover,
.header__social-icon--instagram a:focus-visible {
  background-color: #e4405f;
  color: #fff;
}
.header__social-icon--instagram a:hover .header__social-tooltip,
.header__social-icon--instagram a:hover .header__social-tooltip::before,
.header__social-icon--instagram a:focus-visible .header__social-tooltip,
.header__social-icon--instagram a:focus-visible .header__social-tooltip::before {
  background: #e4405f;
  color: #fff;
}

/* Hide on mobile — utility bar is hidden below 1024px anyway */
@media (max-width: 1023px) {
  .header__social {
    display: none;
  }
}