/* One balanced header row; compact labels before switching to the mobile menu. */
html { scroll-padding-top: calc(var(--header-height, 90px) + 16px); }
.site-header .header-inner {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  width: 100%;
  max-width: none;
  margin: 0 auto;
  padding: 14px clamp(16px, 2vw, 40px);
}
.site-header .brand {
  grid-column: 1;
  grid-row: 1;
  width: 160px;
  height: 44px;
  min-width: 0;
  margin: 0;
  padding: 3px 6px;
  background: #fff;
  justify-content: center;
  border-radius: 8px;
}
.site-header .brand .brand-logo { width: 148px; height: auto; max-height: none; object-fit: contain; }
:root[data-theme=dark] .site-header .brand { padding: 3px 6px; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) .site-header .brand { padding: 3px 6px; }
}
.site-header .nav {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  position: static;
  inset: auto;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: clamp(8px, 1vw, 16px);
  width: 100%;
  min-width: 0;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  overflow: visible;
}
.site-header .nav > details,
.site-header .nav > a.nav-link { flex: 0 0 auto; width: auto; font-size: 18px; font-weight: 600; }
.site-header .nav > a.nav-link,
.site-header .nav > details > summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 48px;
  padding: 0 8px;
  line-height: 24px;
  white-space: nowrap;
  border-radius: 8px;
  text-decoration: none;
}
.site-header .nav summary .car { flex: none; line-height: 1; }
.site-header .nav > details[open] > summary { background: var(--bg-inset); }
.site-header .nav .mega {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: auto;
  width: 360px;
  min-width: 300px;
  max-width: calc(100vw - 40px);
  max-height: calc(100dvh - var(--header-height, 77px) - 24px);
  overflow: auto;
  padding: 10px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}
.site-header .nav > details:last-of-type .mega { left: auto; right: 0; }
/* Keep the pointer inside the dropdown while crossing its 10px visual gap. */
@media (min-width: 1281px) and (hover: hover) and (pointer: fine) {
  .site-header .nav > details[open]::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 0;
    width: 360px;
    max-width: calc(100vw - 40px);
    height: 12px;
    z-index: 49;
  }
  .site-header .nav > details:last-of-type[open]::after { left: auto; right: 0; }
}
.site-header .header-actions { grid-column: 3; grid-row: 1; display: flex; align-items: center; gap: 10px; }
.site-header .theme-toggle,
.site-header .nav-toggle { width: 44px; height: 44px; flex: none; margin: 0; color: var(--text); }
.site-header .theme-toggle svg,
.site-header .nav-toggle svg { width: 22px; height: 22px; }
.site-header .header-actions .portal-btn { height: 44px; padding: 0 18px; font-size: 13px; line-height: 20px; }
.site-header .header-actions .portal-btn .full { display: inline; }
.site-header .portal-label-compact,
.site-header .nav-label-short { display: none; }
.site-header .nav-toggle { display: none; }
.site-header .nav-toggle .menu-close-icon,
.site-header .nav-toggle[aria-expanded=true] .menu-open-icon { display: none; }
.site-header .nav-toggle[aria-expanded=true] .menu-close-icon { display: block; }
.site-header .nav-toggle[aria-expanded=true] { background: var(--bg-inset); }

@media (min-width: 1281px) and (max-width: 1799px) {
  .site-header .header-inner { gap: 24px; padding-inline: 16px; }
  .site-header .nav-label-full { display: none; }
  .site-header .nav-label-short { display: inline; }
  .site-header .nav { gap: clamp(6px, .65vw, 10px); }
}
@media (min-width: 1281px) and (max-width: 1232px) {
  .site-header .header-inner { gap: 20px; }
  .site-header .nav > details,
  .site-header .nav > a.nav-link { font-size: 17px; }
  .site-header .nav > a.nav-link,
  .site-header .nav > details > summary { padding-inline: 4px; }
}
@media (min-width: 1281px) and (max-width: 1799px) {
  .site-header .portal-label,
  .site-header .header-actions .portal-btn .full { display: none; }
  .site-header .portal-label-compact { display: inline; }
}

@media (max-width: 1280px) {
  .site-header .header-inner { grid-template-columns: minmax(0, 1fr) 44px auto; gap: 12px; padding: 10px 20px; }
  .site-header .nav-toggle { grid-column: 2; grid-row: 1; display: inline-flex; align-items: center; justify-content: center; }
  .site-header .header-actions { grid-column: 3; }
  .site-header .nav {
    display: none;
    position: fixed;
    inset: var(--header-height, 69px) 0 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 4px;
    width: 100%;
    max-width: none;
    max-height: calc(100dvh - var(--header-height, 69px));
    margin: 0;
    padding: 16px 20px calc(28px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--border);
    background: var(--bg);
    overflow-y: auto;
    overscroll-behavior: contain;
  }
  .site-header .nav.open { display: flex; }
  .site-header .nav > details,
  .site-header .nav > a.nav-link { width: 100%; font-size: 16px; }
  .site-header .nav > a.nav-link,
  .site-header .nav > details > summary { justify-content: space-between; min-height: 48px; height: auto; padding: 12px; white-space: normal; line-height: 24px; }
  .site-header .nav .mega,
  .site-header .nav > details:last-of-type .mega { position: static; width: 100%; min-width: 0; max-width: none; max-height: none; overflow: visible; padding: 0 0 8px 12px; border: 0; box-shadow: none; }
  html.nav-open { overflow: hidden; }
}

@media (max-width: 600px) {
  .site-header .header-inner { grid-template-columns: minmax(0, 1fr) 40px auto; gap: 8px; padding: 10px 12px; }
  .site-header .header-inner .brand { width: min(168px, 100%); height: 40px; padding: 3px 5px; }
  .site-header .header-inner .brand-logo { width: 100%; height: auto; }
  :root[data-theme=dark] .site-header .header-inner .brand { padding: 3px 5px; }
  .site-header .theme-toggle,
  .site-header .nav-toggle { width: 40px; height: 40px; }
  .site-header .header-actions { gap: 8px; }
  .site-header .header-actions .portal-btn { height: 40px; padding: 0 13px; font-size: 12px; }
  .site-header .portal-label,
  .site-header .header-actions .portal-btn .full { display: none; }
  .site-header .portal-label-compact { display: inline; }
  .site-header .nav { padding-inline: 12px; }
}
@media (prefers-color-scheme: dark) and (max-width: 600px) {
  :root:not([data-theme=light]) .site-header .header-inner .brand { padding: 3px 5px; }
}



/* Keep desktop categories together as a centered group. */
@media(min-width:1800px){.site-header .nav{justify-content:center;gap:clamp(16px,1.5vw,28px)}}

/* Preserve readable single-line labels at desktop widths and browser zoom. */
@media(min-width:1281px){.site-header .nav>details,.site-header .nav>a.nav-link{flex-shrink:0}.site-header .nav>details>summary{white-space:nowrap;max-width:none}.site-header .nav{justify-content:center;gap:clamp(8px,1vw,22px)}}
@media(min-width:1281px) and (max-width:1450px){.site-header .header-inner{gap:16px}.site-header .nav>details,.site-header .nav>a.nav-link{font-size:16px}.site-header .nav>a.nav-link,.site-header .nav>details>summary{padding-inline:4px}}