/* Native details keeps navigation usable even before JavaScript loads. */
html body .site-header details.mobile-nav {
  display: none;
  position: static;
  order: 4;
  flex: 0 0 auto;
  margin: 0;
  padding: 0;
  border: 0;
  background: none;
  box-shadow: none;
  clip-path: none;
}
html body .site-header .mobile-nav > summary {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--border, #313948);
  border-radius: 12px;
  background: var(--surface-solid, #1c2b46);
  color: var(--text, #f8fafc);
  cursor: pointer;
  list-style: none;
}
html body .site-header .mobile-nav > summary::after,
html body .site-header .mobile-nav > summary::marker,
html body .site-header .mobile-nav > summary::-webkit-details-marker { display: none; content: none; }
html body .site-header .mobile-nav > summary svg { width: 22px; height: 22px; }
html body .site-header .mobile-nav[open] > summary { border-color: var(--accent); }
html body .site-header .mobile-nav summary:focus-visible,
html body .site-header .mobile-nav a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
html body .site-header .mobile-nav-panel {
  position: absolute;
  inset-block-start: calc(100% + 8px);
  inset-inline-end: 16px;
  width: min(420px, calc(100% - 32px));
  max-height: calc(100dvh - 100px);
  overflow-y: auto;
  overscroll-behavior: contain;
  box-sizing: border-box;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-solid, #1c2b46);
  color: var(--text);
  box-shadow: 0 16px 40px #0004;
}
html body .site-header .mobile-nav-panel nav { display: grid; gap: 4px; margin: 0; }
html body .site-header .mobile-nav-panel a {
  display: block;
  padding: 12px 14px;
  min-height: 44px;
  box-sizing: border-box;
  border-radius: 8px;
  color: var(--text);
  font: 500 16px/1.4 var(--font-body, sans-serif);
  text-decoration: none;
  text-transform: none;
  overflow-wrap: anywhere;
}
html body .site-header .mobile-nav-panel a:hover { background: var(--accent-soft); }
html body .site-header details.mobile-nav-languages {
  margin: 8px 0;
  padding: 0;
  border: 0;
  border-top: 1px solid var(--border);
  background: none;
  box-shadow: none;
  clip-path: none;
}
html body .site-header .mobile-nav-languages > summary {
  padding: 14px;
  color: var(--text);
  font: 500 16px/1.4 var(--font-body, sans-serif);
  cursor: pointer;
}
html body .site-header .mobile-nav-languages > summary::after { content: none; }
html body .site-header .mobile-nav-panel a.mobile-nav-download {
  margin-top: 8px;
  background: var(--accent);
  color: var(--bg);
  text-align: center;
}
@media (max-width: 1023px) {
  html body .site-header details.mobile-nav { display: block; }
  html body .site-header > .nav { gap: 12px; }
  html body .site-header .nav-controls { order: 3; margin-inline-start: auto; }
}
@media (max-width: 1319px) {
  html:not([lang="en"]) body .site-header details.mobile-nav { display: block; }
  html:not([lang="en"]) body .site-header > .nav { gap: 12px; }
  html:not([lang="en"]) body .site-header .nav-controls { order: 3; margin-inline-start: auto; }
}
@media (max-width: 480px) {
  /* Keep the top row comfortable at 320px; the install link is in the menu. */
  html body .site-header .nav-controls > a { display: none; }
  html body .site-header .brand { font-size: 19px; gap: 8px; }
}