/* Shared navigation (#1023). Scoped separately from chart and page styles. */
.site-nav { position: sticky; top: 0; z-index: 100; flex: 0 0 auto; font: 15px/1.5 system-ui, sans-serif; color: var(--text, #15181d); background: var(--bg, #fff); border-bottom: 1px solid var(--border, #e3e6ea); }
.site-nav *, .site-nav *::before, .site-nav *::after { box-sizing: border-box; }
.site-nav [hidden] { display: none !important; }
.site-nav-inner { max-width: 1120px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 16px; }
.site-nav a { color: inherit; text-decoration: none; }
.site-nav-brand { font-size: 17px; font-weight: 750; white-space: nowrap; }
.site-nav-brand span { color: var(--accent, #d6562b); padding-right: 5px; }
.site-navigation { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.site-navigation > a, .site-nav-more > summary { display: block; padding: 8px 10px; border-radius: 6px; white-space: nowrap; cursor: pointer; }
.site-nav a:hover, .site-nav-more > summary:hover { background: var(--bg-soft, #f6f7f9); }
.site-nav :is(a, button, summary):focus-visible { outline: 3px solid var(--accent, #d6562b); outline-offset: 2px; }
.site-nav-more { position: relative; }
.site-nav-more > summary { display: list-item; list-style-position: inside; }
.site-nav-secondary { position: absolute; right: 0; top: 100%; width: 240px; max-height: 70vh; overflow-y: auto; padding: 8px; border: 1px solid var(--border, #e3e6ea); border-radius: 8px; background: var(--bg, #fff); box-shadow: 0 8px 24px #0002; }
.site-nav-secondary a { display: block; padding: 8px 12px; border-radius: 4px; }
.site-menu-button, .site-theme-button { flex-shrink: 0; border: 1px solid var(--border, #e3e6ea); border-radius: 7px; background: var(--bg, #fff); color: inherit; font: inherit; cursor: pointer; padding: 7px 10px; min-height: 38px; }
.site-menu-button { display: none; }
.site-data-status { margin: 0; padding: 8px 20px; background: var(--accent-soft, #fbe9e2); color: inherit; }
html { scroll-padding-top: calc(var(--site-nav-height, 64px) + 12px); }
html[data-theme="dark"] .site-nav { color: #e8ecf1; background: #0e1116; }
html[data-theme="dark"] .site-nav :is(a:hover, summary:hover) { background: #171d25; }
html[data-theme="dark"] .site-nav :is(button, .site-nav-secondary) { background: #171d25; }
@media (max-width: 900px) and (min-width: 721px) {
  .site-nav-inner { gap: 4px; padding-inline: 12px; }
  .site-nav-brand { font-size: 14px; }
  .site-navigation > a, .site-nav-more > summary { padding-inline: 6px; font-size: 13px; }
}
@media (max-width: 720px) {
  .site-nav-inner { flex-wrap: wrap; gap: 10px; }
  .site-nav-brand { margin-right: auto; }
  .site-nav.is-enhanced .site-menu-button { display: block; }
  .site-navigation { width: 100%; margin: 0; flex-direction: column; align-items: stretch; order: 4; }
  .site-nav.is-enhanced .site-navigation { display: none; }
  .site-nav.is-enhanced .site-navigation[data-open] { display: flex; position: fixed; inset: var(--site-nav-height, 64px) 0 0; padding: 16px 20px 32px; overflow-y: auto; background: var(--bg, #fff); }
  html[data-theme="dark"] .site-nav.is-enhanced .site-navigation[data-open] { background: #0e1116; }
  .site-navigation > a, .site-nav-more > summary { padding: 12px; }
  .site-nav-secondary { position: static; width: 100%; max-height: none; box-shadow: none; }
}