/* ============================================================================
 * Global Header — premium enterprise navigation.
 *
 * Architecture:
 *   .wb-site-header                → outer banner element
 *   .wb-site-header__inner         → container row (logo, nav, actions)
 *   .wb-site-header__brand         → logo link
 *   .wb-site-header__nav           → primary nav (desktop)
 *   .wb-site-header__actions       → CTAs / utility buttons
 *   .wb-site-header__toggle        → hamburger (mobile only)
 *   .wb-site-header.is-scrolled    → sticky elevated state
 *
 * Behaviour:
 *   - Sticky on scroll, subtle elevation + backdrop blur.
 *   - Desktop nav hidden < 1024px, mobile drawer takes over.
 *   - Submenus open on hover (pointer) / focus / touch tap.
 *   - Respects prefers-reduced-motion (set by main.js root class).
 *
 * No JS dependency for sticky / scroll feel — IntersectionObserver in main.js
 * just toggles `is-scrolled` for the elevation transition.
 * ========================================================================== */

.wb-site-header {
  position: sticky;
  top: 0;
  z-index: var(--wb-z-header);
  width: 100%;
  background-color: color-mix(in srgb, var(--wb-color-bg) 92%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: var(--wb-border-width) solid transparent;
  transition:
    background-color var(--wb-duration-base) var(--wb-ease),
    border-color var(--wb-duration-base) var(--wb-ease),
    box-shadow var(--wb-duration-base) var(--wb-ease);
}

.wb-site-header.is-scrolled {
  background-color: color-mix(in srgb, var(--wb-color-bg) 96%, transparent);
  border-bottom-color: var(--wb-color-border-soft);
  box-shadow: var(--wb-shadow-sm);
}

.wb-site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--wb-space-5);
  min-height: 64px;
  padding-block: var(--wb-space-3);
}

@media (min-width: 1024px) {
  .wb-site-header__inner {
    min-height: 72px;
    gap: var(--wb-space-7);
  }
}

/* Brand --------------------------------------------------------------------- */
.wb-site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: var(--wb-space-2);
  color: var(--wb-color-ink);
  text-decoration: none;
  font-weight: var(--wb-fw-semibold);
  letter-spacing: var(--wb-ls-tight);
  flex: 0 0 auto;
}
.wb-site-header__brand img {
  display: block;
  height: 32px;
  width: auto;
}
@media (min-width: 1024px) {
  .wb-site-header__brand img { height: 36px; }
}

/* Text-fallback brand mark — used when no logo is uploaded yet.
 * Inline pseudo-wordmark so the header still feels intentional. */
.wb-site-header__name {
  font-size: 1.0625rem;
  font-weight: var(--wb-fw-bold);
  letter-spacing: -0.015em;
  color: var(--wb-color-ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.wb-site-header__name::before {
  content: "W";
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: var(--wb-radius-sm);
  background: var(--wb-color-ink);
  color: var(--wb-color-white);
  font-size: 14px;
  font-weight: var(--wb-fw-bold);
  letter-spacing: 0;
  line-height: 1;
}

/* Primary nav --------------------------------------------------------------- */
.wb-site-header__nav { display: none; }

@media (min-width: 1024px) {
  .wb-site-header__nav {
    display: block;
    flex: 1 1 auto;
  }
  .wb-site-header__nav .wb-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: var(--wb-space-6);
  }
  .wb-site-header__nav .wb-nav__item {
    position: relative;
  }
  .wb-site-header__nav .wb-nav__link {
    display: inline-flex;
    align-items: center;
    gap: var(--wb-space-1);
    padding: var(--wb-space-2) 0;
    font-size: var(--wb-text-sm);
    font-weight: var(--wb-fw-medium);
    color: var(--wb-color-text);
    text-decoration: none;
    transition: color var(--wb-duration-base) var(--wb-ease);
  }
  .wb-site-header__nav .wb-nav__link:hover,
  .wb-site-header__nav .wb-nav__item.current-menu-item > .wb-nav__link {
    color: var(--wb-color-ink);
  }

  /* Caret for items with children */
  .wb-site-header__nav .wb-nav__item.menu-item-has-children > .wb-nav__link::after {
    content: "";
    width: 0.5rem;
    height: 0.5rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translateY(-2px);
    transition: transform var(--wb-duration-base) var(--wb-ease);
    opacity: 0.7;
  }
  .wb-site-header__nav .wb-nav__item.menu-item-has-children.is-open > .wb-nav__link::after,
  .wb-site-header__nav .wb-nav__item.menu-item-has-children:hover > .wb-nav__link::after {
    transform: rotate(-135deg) translateY(2px);
  }

  /* Dropdown submenu */
  .wb-site-header__nav .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    margin: 0;
    padding: var(--wb-space-3);
    list-style: none;
    background: var(--wb-color-surface);
    border: var(--wb-border-width) solid var(--wb-color-border-soft);
    border-radius: var(--wb-radius-lg);
    box-shadow: var(--wb-shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition:
      opacity var(--wb-duration-base) var(--wb-ease),
      transform var(--wb-duration-base) var(--wb-ease),
      visibility 0s linear var(--wb-duration-base);
  }
  .wb-site-header__nav .wb-nav__item:hover > .sub-menu,
  .wb-site-header__nav .wb-nav__item:focus-within > .sub-menu,
  .wb-site-header__nav .wb-nav__item.is-open > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition-delay: 0s;
  }
  .wb-site-header__nav .sub-menu .wb-nav__link {
    display: block;
    padding: var(--wb-space-2) var(--wb-space-3);
    border-radius: var(--wb-radius-sm);
    color: var(--wb-color-text);
  }
  .wb-site-header__nav .sub-menu .wb-nav__link:hover {
    background: var(--wb-color-bg-soft);
    color: var(--wb-color-ink);
  }
}

/* Actions ------------------------------------------------------------------- */
.wb-site-header__actions {
  display: none;
}
@media (min-width: 1024px) {
  .wb-site-header__actions {
    display: inline-flex;
    align-items: center;
    gap: var(--wb-space-3);
    flex: 0 0 auto;
  }
}

/* Academy badge link — promoted across every page header for SEO. */
.wb-site-header__academy {
  display: inline-flex;
  align-items: center;
  gap: var(--wb-space-2);
  padding: 0.375rem 0.75rem 0.375rem 0.5rem;
  font-size: var(--wb-text-xs);
  font-weight: var(--wb-fw-medium);
  letter-spacing: -0.005em;
  color: var(--wb-color-text);
  text-decoration: none;
  border: var(--wb-border-width) solid rgba(255, 255, 255, 0.1);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
  border-radius: var(--wb-radius-full);
  transition:
    border-color var(--wb-duration-base) var(--wb-ease),
    background var(--wb-duration-base) var(--wb-ease),
    transform var(--wb-duration-base) var(--wb-ease);
}
.wb-site-header__academy:hover {
  border-color: rgba(79, 140, 255, 0.35);
  background: linear-gradient(180deg, rgba(79, 140, 255, 0.1), rgba(79, 140, 255, 0.03));
  color: var(--wb-color-white);
  transform: translateY(-1px);
}
.wb-site-header__academy-eyebrow {
  font-size: 9.5px;
  font-weight: var(--wb-fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #93c5fd;
  padding: 2px 6px;
  background: rgba(79, 140, 255, 0.15);
  border-radius: var(--wb-radius-full);
  line-height: 1;
}
.wb-site-header__academy-text {
  white-space: nowrap;
}
.wb-site-header__academy-arrow {
  font-size: 14px;
  color: #93c5fd;
  transition: transform var(--wb-duration-base) var(--wb-ease);
}
.wb-site-header__academy:hover .wb-site-header__academy-arrow {
  transform: translate(1px, -1px);
}
/* Hide the long-form academy badge on tablet to save space */
@media (max-width: 1199px) {
  .wb-site-header__academy-text { display: none; }
}

/* Mobile toggle ------------------------------------------------------------- */
.wb-site-header__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: var(--wb-border-width) solid var(--wb-color-border);
  border-radius: var(--wb-radius-md);
  color: var(--wb-color-ink);
  cursor: pointer;
  transition:
    background-color var(--wb-duration-base) var(--wb-ease),
    border-color var(--wb-duration-base) var(--wb-ease);
}
.wb-site-header__toggle:hover {
  background-color: var(--wb-color-bg-soft);
  border-color: var(--wb-color-border-strong);
}
.wb-site-header__toggle:focus-visible {
  outline: var(--wb-focus-width) solid var(--wb-color-focus-ring);
  outline-offset: 2px;
}
@media (min-width: 1024px) {
  .wb-site-header__toggle { display: none; }
}

.wb-site-header__toggle-bars {
  position: relative;
  width: 20px;
  height: 14px;
}
.wb-site-header__toggle-bars::before,
.wb-site-header__toggle-bars::after,
.wb-site-header__toggle-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.75px;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--wb-duration-base) var(--wb-ease),
              opacity var(--wb-duration-fast) var(--wb-ease),
              top var(--wb-duration-base) var(--wb-ease);
}
.wb-site-header__toggle-bars::before { content: ""; top: 0; }
.wb-site-header__toggle-bars span    { top: 50%; transform: translateY(-50%); }
.wb-site-header__toggle-bars::after  { content: ""; bottom: 0; }

.wb-site-header__toggle[aria-expanded="true"] .wb-site-header__toggle-bars::before {
  top: 50%;
  transform: translateY(-50%) rotate(45deg);
}
.wb-site-header__toggle[aria-expanded="true"] .wb-site-header__toggle-bars span {
  opacity: 0;
}
.wb-site-header__toggle[aria-expanded="true"] .wb-site-header__toggle-bars::after {
  top: 50%;
  bottom: auto;
  transform: translateY(-50%) rotate(-45deg);
}

/* Mobile drawer ------------------------------------------------------------- */
.wb-mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--wb-z-modal);
  visibility: hidden;
  pointer-events: none;
}
.wb-mobile-nav.is-open {
  visibility: visible;
  pointer-events: auto;
}

.wb-mobile-nav__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(11, 15, 23, 0.4);
  opacity: 0;
  transition: opacity var(--wb-duration-base) var(--wb-ease);
}
.wb-mobile-nav.is-open .wb-mobile-nav__backdrop { opacity: 1; }

.wb-mobile-nav__panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 90vw);
  background: var(--wb-color-surface);
  border-left: var(--wb-border-width) solid var(--wb-color-border-soft);
  padding: var(--wb-space-5) var(--wb-space-5) var(--wb-space-7);
  display: flex;
  flex-direction: column;
  gap: var(--wb-space-5);
  transform: translateX(100%);
  transition: transform var(--wb-duration-slow) var(--wb-ease-out);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.wb-mobile-nav.is-open .wb-mobile-nav__panel {
  transform: translateX(0);
}

.wb-reduce-motion .wb-mobile-nav__panel,
.wb-reduce-motion .wb-mobile-nav__backdrop { transition: none; }

.wb-mobile-nav__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--wb-space-3);
  padding-bottom: var(--wb-space-3);
  border-bottom: var(--wb-border-width) solid var(--wb-color-border-soft);
}
.wb-mobile-nav__close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: var(--wb-border-width) solid var(--wb-color-border);
  background: transparent;
  border-radius: var(--wb-radius-md);
  cursor: pointer;
  color: var(--wb-color-ink);
}
.wb-mobile-nav__close:hover { background: var(--wb-color-bg-soft); }
.wb-mobile-nav__close::before,
.wb-mobile-nav__close::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 1.75px;
  background: currentColor;
  border-radius: 1px;
}
.wb-mobile-nav__close::before { transform: rotate(45deg); }
.wb-mobile-nav__close::after  { transform: rotate(-45deg); }

.wb-mobile-nav .wb-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--wb-space-1);
}
.wb-mobile-nav .wb-nav__link {
  display: block;
  padding: var(--wb-space-3) var(--wb-space-2);
  font-size: var(--wb-text-base);
  font-weight: var(--wb-fw-medium);
  color: var(--wb-color-ink);
  text-decoration: none;
  border-radius: var(--wb-radius-sm);
}
.wb-mobile-nav .wb-nav__link:hover { background: var(--wb-color-bg-soft); }

.wb-mobile-nav .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0 0 0 var(--wb-space-3);
  border-left: 2px solid var(--wb-color-border-soft);
  display: none;
}
.wb-mobile-nav .wb-nav__item.is-open > .sub-menu { display: block; }
.wb-mobile-nav .sub-menu .wb-nav__link {
  font-size: var(--wb-text-sm);
  color: var(--wb-color-text);
}

.wb-mobile-nav__actions {
  display: flex;
  flex-direction: column;
  gap: var(--wb-space-2);
}

/* Academy card inside the mobile drawer */
.wb-mobile-nav__academy {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--wb-space-4) var(--wb-space-5);
  text-decoration: none;
  border: var(--wb-border-width) solid rgba(79, 140, 255, 0.25);
  background:
    linear-gradient(180deg, rgba(79, 140, 255, 0.12), rgba(79, 140, 255, 0.03));
  border-radius: var(--wb-radius-md);
  position: relative;
}
.wb-mobile-nav__academy-eyebrow {
  font-size: 10px;
  font-weight: var(--wb-fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #93c5fd;
}
.wb-mobile-nav__academy-text {
  font-size: var(--wb-text-base);
  font-weight: var(--wb-fw-semibold);
  color: var(--wb-color-white);
  letter-spacing: -0.01em;
}
.wb-mobile-nav__academy-arrow {
  position: absolute;
  top: var(--wb-space-4);
  right: var(--wb-space-4);
  font-size: 18px;
  color: #93c5fd;
}

/* Lock body scroll when drawer is open (JS adds class on html) */
.wb-nav-lock,
.wb-nav-lock body {
  overflow: hidden;
}

/* Print --------------------------------------------------------------------- */
@media print {
  .wb-site-header { position: static; box-shadow: none; backdrop-filter: none; }
  .wb-site-header__toggle,
  .wb-mobile-nav { display: none !important; }
}