/* =========================================================
   SecInfra — Header / Navbar
   ========================================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 64px;
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.05rem;
}
.site-header__logo .custom-logo-link {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}
.site-header__logo img,
.site-header__logo svg,
.site-header__logo .custom-logo {
  height: 36px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

/* ---------- Nav (desktop) ---------- */
.site-nav {
  display: flex;
  align-items: center;
}
.site-nav__list {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.site-nav__list a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition);
}
.site-nav__list a:hover,
.site-nav__list .current-menu-item > a,
.site-nav__list .current_page_item > a {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* ---------- Menu toggle (mobile) ---------- */
.site-nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-primary);
  background: transparent;
  border: 1px solid var(--color-border);
  transition: background var(--transition);
}
.site-nav__toggle:hover {
  background: var(--color-bg-alt);
}
.site-nav__toggle-bars,
.site-nav__toggle-bars::before,
.site-nav__toggle-bars::after {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  position: relative;
  transition: transform var(--transition), top var(--transition), opacity var(--transition);
}
.site-nav__toggle-bars::before,
.site-nav__toggle-bars::after {
  content: '';
  position: absolute;
  left: 0;
}
.site-nav__toggle-bars::before { top: -6px; }
.site-nav__toggle-bars::after  { top:  6px; }

.site-nav.is-open .site-nav__toggle-bars               { background: transparent; }
.site-nav.is-open .site-nav__toggle-bars::before       { top: 0; transform: rotate(45deg); }
.site-nav.is-open .site-nav__toggle-bars::after        { top: 0; transform: rotate(-45deg); }

@media (max-width: 767px) {
  .site-nav__toggle {
    display: inline-flex;
  }
  .site-nav__list {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-card);
    padding: 8px 16px 16px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .site-nav.is-open .site-nav__list {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav__list a {
    display: block;
    padding: 12px 8px;
    border-bottom: 1px solid var(--color-border);
  }
  .site-nav__list li:last-child a {
    border-bottom: none;
  }
  .site-nav__list a:hover,
  .site-nav__list .current-menu-item > a,
  .site-nav__list .current_page_item > a {
    border-bottom-color: var(--color-border);
    background: var(--color-bg-alt);
    border-radius: var(--radius-sm);
  }
}