.page-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 100;
  flex-shrink: 0;
  background: var(--color-surface);
}

.header-inner {
  display: flex;
  align-items: center;
  min-block-size: 72px;
  padding-block: 12px;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  inline-size: 40px;
  block-size: 40px;
  padding: 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
}

.menu-toggle svg {
  flex: 0 0 auto;
}

.menu-close,
.menu-toggle[aria-expanded="true"] .menu-bars {
  display: none;
}

.menu-toggle[aria-expanded="true"] .menu-close {
  display: inline;
}

.brand-name {
  position: relative;
  display: block;
  flex: 0 0 auto;
  inline-size: 128px;
  color: inherit;
  text-decoration: none;
}

.brand-image,
.brand-light {
  display: block;
  inline-size: 100%;
  block-size: auto;
}

/* Lighten only the dark lettering; keep the supplied red brand details. */
.brand-light {
  position: absolute;
  inset: 0;
  filter: brightness(0) invert(1);
  clip-path: inset(27% 34% 0 26%);
  pointer-events: none;
}

.header-menu {
  flex: 1 1 auto;
  margin-inline-start: 32px;
  min-inline-size: 0;
}

.header-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.header-links a {
  display: inline-flex;
  align-items: center;
  min-block-size: 44px;
  border-block-end: 2px solid transparent;
  color: var(--color-muted);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
}

.header-links a:hover,
.header-links a[aria-current="page"] {
  color: var(--color-text);
}

.header-links a[aria-current="page"] {
  border-block-end-color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 16px;
  margin-inline-start: auto;
  padding-inline-start: 16px;
}

.header-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-block-size: 34px;
  padding: 8px 16px;
  border: 0;
  border-radius: 8px;
  color: var(--color-text);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.5;
  text-transform: uppercase;
  white-space: nowrap;
  cursor: pointer;
}

.header-button-secondary {
  background: var(--color-secondary);
}

.header-button-primary {
  background: var(--color-accent);
}

@media (hover: hover) {
  .header-button-secondary:hover {
    background: var(--color-secondary-hover);
  }

  .header-button-primary:hover {
    background: var(--color-accent-hover);
  }
}

@media (max-width: 1100px) {
  .page-header {
    --compact-header-height: 72px;
    max-block-size: 100vh;
    max-block-size: 100dvh;
    overflow-y: auto;
  }

  .page-header.menu-ready {
    max-block-size: none;
    overflow: visible;
  }

  .header-inner {
    flex-wrap: wrap;
    column-gap: 12px;
  }

  .menu-ready .menu-toggle {
    display: inline-flex;
  }

  .header-menu {
    order: 3;
    flex-basis: 100%;
    margin-inline-start: 0;
    margin-block-start: 12px;
    padding-block-start: 8px;
    border-block-start: 1px solid var(--color-border);
  }

  .menu-ready .header-inner {
    flex-wrap: nowrap;
  }

  .menu-ready .header-menu {
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    max-block-size: calc(100vh - var(--compact-header-height));
    max-block-size: calc(100dvh - var(--compact-header-height));
    overflow-y: auto;
    overscroll-behavior-y: contain;
    margin: 0;
    padding: 8px var(--page-gutter) 12px;
    border-block-end: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: 0 12px 24px rgb(0 0 0 / 25%);
  }

  @media (prefers-reduced-motion: no-preference) {
    .menu-ready .header-menu:not([hidden]) {
      animation: menu-reveal 160ms ease-out;
    }
  }

  .header-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .header-links a {
    display: flex;
    padding-inline: 12px;
    border-radius: 6px;
  }

  .header-links a[aria-current="page"] {
    border-block-end-color: transparent;
    background: rgb(255 255 255 / 4%);
    color: var(--color-accent);
  }
}

@media (max-width: 600px) {
  .page-header {
    --compact-header-height: 64px;
  }

  .header-inner {
    min-block-size: 64px;
    column-gap: 8px;
  }

  .menu-toggle {
    inline-size: 36px;
    block-size: 36px;
    padding: 6px;
  }

  .brand-name {
    inline-size: 96px;
  }

  .header-actions {
    gap: 6px;
    padding-inline-start: 0;
  }

  .header-button {
    padding-inline: 8px;
    font-size: 11px;
  }
}

@keyframes menu-reveal {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 380px) {
  .header-inner {
    column-gap: 6px;
  }

  .brand-name {
    inline-size: 84px;
  }

  .header-button {
    font-size: 10px;
  }
}