/* Navigation mit Dropdowns und Footer-Regionen. Wird nach styles.min.css geladen.
   Mobile-Breakpoint wie in styles.min.css: bis 768px Overlay-Menue mit Akkordeon. */

/* ---- Gemeinsam ---- */
.nav-links .nav-item { position: relative; }
.nav-links .has-dropdown { display: flex; align-items: center; gap: 0.1rem; }
.nav-links a[aria-current="page"]:not(.btn-primary) { color: var(--heading-color); }
.nav-links .is-active-parent > a:not(.btn-primary) {
  color: var(--accent-color);
  text-decoration: underline;
  text-decoration-color: var(--primary-color);
  text-decoration-thickness: 2px;
  text-underline-offset: 8px;
}
.nav-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: 0; border-radius: 8px; cursor: pointer;
  color: var(--text-color); padding: 0; width: 28px; min-height: 44px;
}
.nav-toggle:hover { color: var(--primary-color); }
.nav-toggle:focus-visible,
.nav-dropdown a:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 2px; }
.nav-toggle svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.nav-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.nav-dropdown { list-style: none; margin: 0; padding: 0.5rem; }
.nav-dropdown a { display: block; border-radius: 8px; line-height: 1.35; }
.nav-dropdown a[aria-current="page"] { color: var(--accent-color); font-weight: 600; }

/* ---- Desktop ---- */
@media (min-width: 769px) {
  .nav-dropdown {
    position: absolute; top: calc(100% + 12px); left: -1rem; z-index: 1001;
    min-width: 270px; display: flex; flex-direction: column; gap: 0.1rem;
    background: var(--bg-secondary); border: 1px solid var(--card-border);
    border-radius: 12px; box-shadow: 0 18px 40px rgba(0, 0, 0, 0.5);
    opacity: 0; visibility: hidden; transform: translateY(6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0.18s;
  }
  /* Bruecke ueber den Abstand, damit die Maus den Hover nicht verliert */
  .nav-dropdown::before { content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px; }
  .has-dropdown.is-open > .nav-dropdown {
    opacity: 1; visibility: visible; transform: none; transition-delay: 0s;
  }
  .nav-dropdown a { padding: 0.55rem 0.85rem; font-size: 0.9rem; white-space: nowrap; }
  .nav-dropdown a:hover { background: rgba(59, 130, 246, 0.14); color: var(--heading-color); }
  .nav-dropdown-wide { display: grid; grid-template-columns: 1fr 1fr; min-width: 480px; left: 50%; right: auto; transform: translate(-50%, 6px); }
  .has-dropdown.is-open > .nav-dropdown-wide { transform: translateX(-50%); }
}
@media (min-width: 769px) and (max-width: 1000px) {
  .nav-dropdown-wide { display: flex; min-width: 270px; }
}

/* ---- Mobil: Overlay scrollbar, Akkordeon ---- */
@media screen and (max-width: 768px) {
  .nav-links {
    height: 100vh; height: 100dvh;
    justify-content: flex-start; align-items: stretch;
    gap: 0.25rem; padding: 5.5rem 1.5rem 2.5rem;
    overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch;
    visibility: hidden;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0.5s;
  }
  .nav-links.nav-active { visibility: visible; transition-delay: 0s; }
  /* auto-Raender zentrieren kurze Menues, ohne dass hohe oben abgeschnitten werden */
  .nav-links > li:first-child { margin-top: auto; }
  .nav-links > li:last-child { margin-bottom: auto; margin-top: 0.75rem; }
  .nav-links > li { width: 100%; max-width: 440px; margin-left: auto; margin-right: auto; }
  .nav-links > li > a { font-size: 1.15rem; padding: 0.7rem 0; display: block; text-align: center; }
  .nav-links .has-dropdown { flex-wrap: wrap; justify-content: center; gap: 0.25rem; }
  .nav-links .has-dropdown > a { flex: 0 1 auto; margin-left: calc(44px + 0.25rem); }
  .nav-toggle { width: 44px; height: 44px; }
  .nav-toggle svg { width: 18px; height: 18px; }
  .nav-dropdown {
    display: none; flex-basis: 100%; width: 100%;
    background: var(--bg-secondary); border: 1px solid var(--card-border); border-radius: 12px;
    margin: 0.25rem 0 0.5rem;
  }
  .has-dropdown.is-open > .nav-dropdown { display: block; }
  .nav-dropdown a { padding: 0.75rem 1rem; font-size: 1rem; text-align: left; }
  .nav-dropdown a:hover { background: rgba(59, 130, 246, 0.14); }
}

@media (prefers-reduced-motion: reduce) {
  .nav-dropdown, .nav-toggle svg { transition: none !important; }
}

/* ---- Footer: Block "Regionen" (5 Spalten) ---- */
@media (min-width: 769px) {
  .footer-content { grid-template-columns: minmax(200px, 1fr) auto; gap: 3rem; }
  .footer-right { grid-template-columns: repeat(3, auto); gap: 2.5rem 3rem; }
}
@media (min-width: 1200px) {
  .footer-right { grid-template-columns: repeat(5, auto); gap: 2.5rem; }
}
.footer-col ul li { max-width: 15rem; }

/* Sprungziele unter dem fixierten Header sichtbar halten */
.section-header[id] { scroll-margin-top: 100px; }