/* ===== HEADER ===== */
.site-header {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sg-border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  max-width: var(--sg-max-width);
  margin: 0 auto;
}

.site-logo a {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--sg-text);
  letter-spacing: -0.5px;
}

.site-logo a span { color: var(--sg-neon-orange); }

/* Navigation */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
}

.main-nav a {
  color: var(--sg-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 0;
  position: relative;
  transition: color .2s;
}

.main-nav a:hover,
.main-nav .current-menu-item a,
.main-nav .current_page_item a {
  color: var(--sg-neon-blue);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--sg-neon-blue);
  transition: width .3s;
}

.main-nav a:hover::after,
.main-nav .current-menu-item a::after { width: 100%; }

/* Mobile toggle */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--sg-border);
  border-radius: 8px;
  padding: 8px 12px;
  color: var(--sg-text);
  font-size: 1.4rem;
  cursor: pointer;
}