/* === Site header for standalone tools (/recon, /gitwho) ===
   Same look as the .brand-nav header on the content pages, rebuilt on the
   css/theme.css tokens and namespaced under .site-nav so it can't collide with
   a tool's own classes. Load after css/theme.css. Mobile menu: js/sitenav.js. */

.site-nav {
  position: relative;
  z-index: 50;
  padding: 0 24px;
  background: var(--gx-bg);
  border-bottom: 1px solid var(--gx-border);
  font-family: var(--gx-sans);
}
.site-nav .site-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.site-nav .gx-wordmark { font-size: 20px; }

.site-nav .site-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav .site-nav-links a {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--gx-text-2);
  text-decoration: none;
  transition: color 0.2s;
}
.site-nav .site-nav-links a:hover,
.site-nav .site-nav-links a.active { color: var(--gx-accent); text-decoration: none; }
.site-nav .site-nav-links a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--gx-accent);
  border-radius: 1px;
  transition: width 0.2s, left 0.2s;
}
.site-nav .site-nav-links a:hover::after,
.site-nav .site-nav-links a.active::after { width: 100%; left: 0; }

.site-nav .site-nav-theme {
  background: none;
  border: 1px solid var(--gx-border);
  color: var(--gx-text-2);
  cursor: pointer;
  font: inherit;
  font-size: 16px;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.2s, color 0.2s;
}
.site-nav .site-nav-theme:hover { border-color: var(--gx-accent); color: var(--gx-accent); filter: none; }

.site-nav .site-nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 60;
}
.site-nav .site-nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--gx-text);
  transition: transform 0.3s, opacity 0.3s;
}
.site-nav .site-nav-burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-nav .site-nav-burger.open span:nth-child(2) { opacity: 0; }
.site-nav .site-nav-burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .site-nav .site-nav-burger { display: flex; }
  .site-nav .site-nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--gx-bg-2);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 24px 24px;
    gap: 0;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    border-left: 1px solid var(--gx-border);
    box-shadow: -4px 0 24px var(--gx-shadow);
    overflow-y: auto;
    z-index: 55;
  }
  .site-nav .site-nav-links.open { transform: translateX(0); }
  .site-nav .site-nav-links li { width: 100%; }
  .site-nav .site-nav-links a { display: block; padding: 12px 0; font-size: 16px; border-bottom: 1px solid var(--gx-border); }
  .site-nav .site-nav-links a::after { display: none; }
  .site-nav .site-nav-links li:last-child { padding-top: 16px; }
}
@media print { .site-nav { display: none; } }