/* ============================================================
   Valicense — Shared Sub-Page Navigation (2026-07-05, SEO/AIEO)
   Volle Haupt-Nav mit Hover-Dropdowns + funktionierender DE/EN-Sprach-Toggle.
   Genutzt von den Wissen-/Knowledge-Sub-Pages. Nutzt theme.css-Tokens.
   Mobile (<900px): Links ausgeblendet (wie Hauptseite) — Mobile-Menü = separater Schritt.
   ============================================================ */
.site-nav {
  position: sticky; top: 0; z-index: 900;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  background: color-mix(in srgb, var(--bg-primary) 72%, transparent);
  border-bottom: 1px solid var(--border-soft);
}
.site-nav-inner {
  max-width: var(--container-max, 1320px);
  margin: 0 auto; padding: 12px 40px;
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
}
.site-nav-logo { display: flex; align-items: center; text-decoration: none; flex-shrink: 0; }
.site-nav-logo img { height: 42px; width: auto; display: block; }
.site-nav-logo .logo-light { display: none; }
.site-nav-logo .logo-dark  { display: block; }
[data-theme="light"] .site-nav-logo .logo-light { display: block; }
[data-theme="light"] .site-nav-logo .logo-dark  { display: none; }

.site-nav-links {
  display: flex; align-items: center; gap: 28px;
  font-size: 15px; font-weight: var(--fw-medium, 500);
}
.site-nav-links > a {
  color: var(--text-secondary); text-decoration: none;
  transition: color 0.15s var(--ease-out, ease); white-space: nowrap;
}
.site-nav-links > a:hover { color: var(--text-primary); }

/* Hover-Dropdowns — identisch zur Hauptseite */
.site-nav-links .nav-item { position: relative; display: inline-flex; align-items: center; padding: 24px 0; margin: -24px 0; }
.site-nav-links .nav-item > a { display: inline-flex; align-items: center; gap: 5px; color: var(--text-secondary); text-decoration: none; white-space: nowrap; transition: color 0.15s var(--ease-out, ease); }
.site-nav-links .nav-item > a:hover { color: var(--text-primary); }
.nav-item.has-dropdown > a::after {
  content: ""; width: 6px; height: 6px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg); margin-top: -3px; opacity: 0.55;
  transition: transform 0.2s var(--ease-out, ease), opacity 0.2s var(--ease-out, ease);
}
.nav-item.has-dropdown:hover > a::after, .nav-item.has-dropdown:focus-within > a::after { transform: rotate(-135deg); margin-top: 2px; opacity: 1; }
.nav-dropdown {
  position: absolute; top: 100%; left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 250px; padding-top: 10px;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity 0.18s var(--ease-out, ease), transform 0.18s var(--ease-out, ease), visibility 0.18s;
  z-index: 1000;
}
.nav-item.has-dropdown:hover .nav-dropdown, .nav-item.has-dropdown:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(-50%) translateY(0);
}
.nav-dropdown .nd-panel {
  background: color-mix(in srgb, var(--bg-elevated) 97%, transparent);
  backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--border); border-radius: 14px; padding: 8px;
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.42);
}
.nav-dropdown .nd-head { padding: 8px 14px 6px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-muted); }
.nav-dropdown a { display: block; padding: 10px 14px; border-radius: 9px; color: var(--text-secondary); font-size: 14px; font-weight: var(--fw-medium, 500); text-decoration: none; white-space: nowrap; transition: background 0.15s, color 0.15s; }
.nav-dropdown a:hover { background: color-mix(in srgb, var(--electric-2) 15%, transparent); color: var(--text-primary); }
.nav-dropdown a .nd-desc { display: block; margin-top: 2px; font-size: 11.5px; font-weight: 400; color: var(--text-muted); white-space: normal; }

.site-nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.site-lang-toggle {
  display: inline-flex; align-items: center; gap: 5px;
  border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 12px; font-size: 12px; font-weight: var(--fw-semibold, 600);
  color: var(--text-secondary); text-decoration: none; font-family: var(--font-mono, monospace);
  transition: border-color 0.15s, color 0.15s;
}
.site-lang-toggle:hover { border-color: var(--accent); color: var(--text-primary); }
.site-lang-toggle .cur { color: var(--electric-2); }
.site-theme-toggle {
  width: 36px; height: 36px; border: 1px solid var(--border); border-radius: 999px;
  background: transparent; display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); cursor: pointer; transition: all 0.15s;
}
.site-theme-toggle:hover { border-color: var(--accent); color: var(--accent); }
.site-theme-toggle svg { width: 16px; height: 16px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.site-nav-cta {
  font-size: 13.5px; font-weight: var(--fw-semibold, 600);
  padding: 9px 18px; border-radius: 999px;
  background: linear-gradient(135deg, var(--electric), var(--electric-2));
  color: #fff !important; text-decoration: none;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
  transition: transform 0.15s, box-shadow 0.15s; white-space: nowrap;
}
.site-nav-cta:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(59, 130, 246, 0.55); }

/* ---- Beratung: 2-Level Side-Flyout (Style B) — 3 Cluster → Services seitlich ---- */
.nav-dropdown .nd-panel--flyout { min-width: 246px; padding: 8px; }
.nd-cluster { position: relative; }
.nav-dropdown a.nd-clabel { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.nd-clabel .nd-caret {
  width: 6px; height: 6px; flex-shrink: 0;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(-45deg); opacity: 0.5; transition: opacity 0.15s var(--ease-out, ease), transform 0.2s var(--ease-out, ease);
}
.nd-cluster:hover > .nd-clabel .nd-caret, .nd-cluster:focus-within > .nd-clabel .nd-caret { opacity: 1; }
.nd-flyout {
  position: absolute; top: -8px; left: 100%; margin-left: 8px; min-width: 238px; padding: 8px;
  background: color-mix(in srgb, var(--bg-elevated) 97%, transparent);
  backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--border); border-radius: 14px; box-shadow: 0 18px 44px rgba(0, 0, 0, 0.42);
  opacity: 0; visibility: hidden; pointer-events: none; transform: translateX(-6px);
  transition: opacity 0.16s var(--ease-out, ease), transform 0.16s var(--ease-out, ease), visibility 0.16s;
  z-index: 1001;
}
.nd-flyout::before { content: ""; position: absolute; top: 0; left: -12px; width: 14px; height: 100%; }
.nd-cluster:hover > .nd-flyout, .nd-cluster:focus-within > .nd-flyout { opacity: 1; visibility: visible; pointer-events: auto; transform: translateX(0); }

/* ---- Mobile menu: Hamburger button (hidden on desktop) ---- */
.site-nav-burger {
  display: none; width: 40px; height: 40px; flex-shrink: 0;
  border: 1px solid var(--border); border-radius: 10px; background: transparent;
  color: var(--text-secondary); align-items: center; justify-content: center; cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}
.site-nav-burger:hover { border-color: var(--accent); color: var(--accent); }
.site-nav-burger svg { width: 20px; height: 20px; stroke: currentColor; stroke-width: 2; fill: none; stroke-linecap: round; }
.site-nav-burger .ic-close { display: none; }
.site-nav.mobile-open .site-nav-burger .ic-open { display: none; }
.site-nav.mobile-open .site-nav-burger .ic-close { display: block; }
.nav-mobile-cta { display: none; }   /* only shown inside the mobile panel */

/* ============================================================
   MOBILE (<900px) — Hamburger + Click-Accordion (Style C on mobile)
   Desktop-Nav-Links werden zum vertikalen Panel; Dropdowns = Tap-Accordion.
   Volle Mobile/Tablet-Politur = separater TODO.
   ============================================================ */
@media (max-width: 900px) {
  .site-nav-burger { display: inline-flex; }
  .site-nav-inner { padding: 11px 20px; flex-wrap: wrap; }
  .site-nav-logo img { height: 38px; }

  /* links → collapsible vertical panel */
  .site-nav-links {
    display: none; order: 3; flex-basis: 100%; flex-direction: column; align-items: stretch; gap: 0;
    margin-top: 10px; padding-top: 6px; border-top: 1px solid var(--border-soft); font-size: 16px;
  }
  .site-nav.mobile-open .site-nav-links { display: flex; }
  .site-nav-links > a { padding: 13px 4px; border-bottom: 1px solid var(--border-soft); }

  /* nav-item → accordion header */
  .site-nav-links .nav-item { position: static; display: block; padding: 0; margin: 0; border-bottom: 1px solid var(--border-soft); }
  .site-nav-links .nav-item > a { padding: 13px 4px; justify-content: space-between; }

  /* dropdown panel → inline collapsible, gated by .open (not hover) */
  .site-nav-links .nav-dropdown {
    position: static; transform: none; opacity: 1; visibility: visible; pointer-events: auto;
    min-width: 0; padding-top: 0; z-index: auto;
    max-height: 0; overflow: hidden; transition: max-height 0.28s var(--ease-out, ease);
  }
  /* neutralise desktop hover transform on touch */
  .site-nav-links .nav-item.has-dropdown:hover .nav-dropdown,
  .site-nav-links .nav-item.has-dropdown:focus-within .nav-dropdown { transform: none; }
  .site-nav-links .nav-item.open > .nav-dropdown { max-height: 900px; }
  .site-nav-links .nav-dropdown .nd-panel { background: transparent; border: none; box-shadow: none;
    backdrop-filter: none; -webkit-backdrop-filter: none; padding: 2px 0 8px 10px; }
  .site-nav-links .nav-dropdown .nd-panel--mega,
  .site-nav-links .nav-dropdown .nd-panel--flyout { display: block; min-width: 0; }

  /* Beratung 2nd-level: flyout → inline accordion */
  .site-nav-links .nd-cluster { border: none; }
  .site-nav-links .nd-flyout {
    position: static; opacity: 1; visibility: visible; pointer-events: auto; transform: none;
    margin-left: 0; padding: 0 0 0 14px; min-width: 0; border: none; box-shadow: none; background: transparent;
    max-height: 0; overflow: hidden; transition: max-height 0.24s var(--ease-out, ease);
  }
  .site-nav-links .nd-cluster:hover > .nd-flyout, .site-nav-links .nd-cluster:focus-within > .nd-flyout { transform: none; }
  .site-nav-links .nd-flyout::before { display: none; }
  .site-nav-links .nd-cluster.open > .nd-flyout { max-height: 320px; }
  .site-nav-links .nd-clabel .nd-caret { transition: transform 0.2s var(--ease-out, ease); }
  .site-nav-links .nav-item.open > a::after,
  .site-nav-links .nd-cluster.open > .nd-clabel .nd-caret { transform: rotate(45deg); }

  /* declutter top bar; surface CTA inside the panel */
  .site-nav-actions .site-nav-cta { display: none; }
  .site-nav-links .nav-mobile-cta {
    display: block; margin: 14px 4px 4px; text-align: center;
    font-size: 15px; font-weight: var(--fw-semibold, 600); padding: 13px 18px; border-radius: 999px;
    background: linear-gradient(135deg, var(--electric), var(--electric-2)); color: #fff !important;
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35); border-bottom: none;
  }
}