/* Shared navigation: app, generated research/docs and legal pages. */
.site-header { --nav-paper: #f1f5eb; --nav-muted: #bcc8c2; --nav-accent: #d9ff55; }
.site-header .nav-shell, .site-header .site-shell-inner { gap: 28px; }
.site-header .brand { flex: 0 0 auto; white-space: nowrap; }
.site-header .primary-navigation { display: flex; align-items: center; gap: 18px; font: 600 13px "Manrope", sans-serif; }
.site-header .primary-navigation > a, .site-header .nav-group > summary { white-space: nowrap; }
.site-header .primary-navigation a, .site-header .nav-group > summary { text-decoration: none; }
.site-header .primary-navigation > a:not(.button):not(.site-button) { display: inline-flex; align-items: center; min-height: 44px; }
.site-header .nav-group { position: relative; border: 0; margin: 0; padding: 0; }
.site-header .nav-group > summary { display: flex; align-items: center; gap: 8px; min-height: 44px; padding: 0; color: var(--nav-muted); cursor: pointer; list-style: none; font: inherit; }
.site-header .nav-group > summary::-webkit-details-marker { display: none; }
.site-header .nav-group > summary::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: translateY(-2px) rotate(45deg); }
.site-header .nav-group[open] > summary { color: var(--nav-accent); }
.site-header .nav-group[open] > summary::after { transform: translateY(2px) rotate(225deg); }
.site-header .nav-group:not([open]) > .nav-panel { display: none; }
.site-header .nav-group:last-of-type .nav-panel { left: auto; right: 0; }
.site-header .nav-panel { position: absolute; top: calc(100% + 8px); left: 0; width: 430px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; padding: 12px; border: 1px solid #34483d; border-radius: 12px; background: #0d1a16; box-shadow: 0 20px 50px #0008; }
.site-header .nav-panel a { display: flex; align-items: center; min-height: 44px; padding: 10px 12px; border-radius: 6px; color: var(--nav-muted); font: 600 13px/1.45 "Manrope", sans-serif; white-space: normal; }
.site-header .nav-panel a:hover, .site-header .nav-panel a:focus-visible { color: var(--nav-paper); background: #1b3026; }
.site-header .nav-account { display: flex; align-items: center; gap: 14px; margin-left: 6px; }
.site-header :is(.nav-signup, .site-signup) { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; color: var(--nav-accent); font-weight: 750; }
.site-header :is(.nav-signup, .site-signup):hover { color: var(--nav-paper); }
.site-header .nav-signout, .site-header .site-signout { min-height: 44px; white-space: nowrap; }
.site-header .primary-navigation .button, .site-header .primary-navigation .site-button { min-height: 44px; white-space: nowrap; }
.site-header :is(a, button, summary):focus-visible { outline: 2px solid var(--nav-accent); outline-offset: 4px; }
.site-header :is(.menu-button, .site-menu-button) { display: none; align-items: center; justify-content: center; min-width: 44px; min-height: 44px; padding: 10px; border: 1px solid #34483d; border-radius: 8px; cursor: pointer; }
.site-header [hidden] { display: none !important; }

@media (max-width: 1100px) {
  .site-header :is(.menu-button, .site-menu-button) { display: flex; }
  .site-header .primary-navigation { display: none; position: absolute; inset: 72px 0 auto; max-height: calc(100dvh - 72px); overflow-y: auto; overscroll-behavior: contain; padding: 16px max(20px, calc((100% - 720px) / 2)); border-bottom: 1px solid #34483d; background: #09140f; flex-direction: column; align-items: stretch; gap: 4px; box-shadow: 0 18px 32px #0005; }
  .site-header .primary-navigation.open { display: flex; }
  .site-header .primary-navigation > a:not(.button):not(.site-button), .site-header .nav-group > summary { padding: 12px; }
  .site-header .nav-group > summary { justify-content: space-between; }
  .site-header .nav-panel { position: static; width: auto; margin: 0 0 8px; box-shadow: none; padding: 6px; }
  .site-header .nav-account { margin: 8px 0; padding-top: 12px; border-top: 1px solid #34483d; }
  .site-header .nav-account > a { flex: 1; justify-content: center; }
  .site-header .nav-account > button { padding: 10px 16px; }
  .site-header .primary-navigation .site-button { margin-top: 0; }
}
@media (max-width: 420px) {
  .site-header .nav-panel { grid-template-columns: minmax(0, 1fr); }
}