/* --- Responsive Navigation mit Untermenüs --- */

.primary-nav.enhanced {
  position: relative;
  z-index: 1000;
  border-block: 1px solid #00000020;
  overflow: visible;
}

@media (prefers-color-scheme: dark) {
  .primary-nav.enhanced {
    border-color: #ffffff20;
  }
}

.primary-nav .nav-toggle {
  display: none;
  margin: 8px auto;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid #00000020;
  background: #fff;
  color: var(--fg);
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all .15s ease;
}

.primary-nav .nav-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.primary-nav .nav-toggle:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

@media (prefers-color-scheme: dark) {
  .primary-nav .nav-toggle {
    background: #151515;
    color: #f2f2f2;
    border-color: #ffffff20;
  }
  .primary-nav .nav-toggle:hover {
    color: #ffffff;
    border-color: var(--accent);
  }
}

/* Root menu */
.primary-nav .menu.root {
  list-style: none;
  margin: 0;
  padding: 0 12px;
  display: grid;
  grid-auto-flow: column;
  gap: 8px;
  justify-content: center;
  align-items: center;
  position: relative;
  z-index: 1000;
  overflow: visible;
}

/* Submenus hidden by default (desktop) */
.primary-nav .has-submenu {
  position: relative;
  z-index: 1000;
  overflow: visible;
}

.primary-nav .submenu {
  list-style: none;
  margin: 0;
  padding: 8px 0;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: rgba(255, 255, 255, .98);
  border: 1px solid #00000020;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .12);
  display: none;
  z-index: 1001;
  overflow: visible;
  max-height: none;
}

@media (prefers-color-scheme: dark) {
  .primary-nav .submenu {
    background: #151515;
    border-color: #ffffff20;
  }
}

/* Desktop: hover öffnet Submenu */
@media (hover: hover) and (pointer: fine) {
  /* Haupt-Submenu beim Hover über Parent */
  .primary-nav .has-submenu:hover > .submenu {
    display: block !important;
  }
  
  /* Submenu bleibt sichtbar beim Hover über das Submenu selbst */
  .primary-nav .has-submenu .submenu:hover {
    display: block !important;
  }
  
  /* Verschachtelte Submenüs: Hover über "Motoren" öffnet das verschachtelte Submenu */
  .primary-nav .submenu .has-submenu:hover > .submenu {
    display: block !important;
  }
  
  /* Verschachteltes Submenu bleibt sichtbar beim Hover darüber */
  .primary-nav .submenu .has-submenu .submenu:hover {
    display: block !important;
  }
  
  /* Parent Submenu bleibt offen, wenn über verschachteltes Submenu gehovert wird */
  .primary-nav .submenu .has-submenu .submenu:hover ~ *,
  .primary-nav .submenu .has-submenu:hover {
    display: block !important;
  }
}

/* Submenu items */
.primary-nav .submenu a,
.primary-nav .submenu .submenu-toggle {
  display: block;
  padding: 8px 12px;
  white-space: nowrap;
  color: #444;
  text-decoration: none;
  transition: background .15s ease, color .15s ease;
  width: 100%;
  text-align: left;
  box-sizing: border-box;
}

.primary-nav .submenu a:hover,
.primary-nav .submenu a:focus {
  background: rgba(0, 0, 0, .05);
  color: var(--accent);
}

@media (prefers-color-scheme: dark) {
  .primary-nav .submenu a {
    color: #f2f2f2;
  }
  .primary-nav .submenu a:hover,
  .primary-nav .submenu a:focus {
    background: rgba(255, 255, 255, .1);
    color: #ffffff;
  }
}

/* Submenu Toggle Buttons (for mobile and accessibility) */
.primary-nav .submenu-toggle {
  padding: 8px 12px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: #444;
  cursor: pointer;
  font-size: 14px;
  text-decoration: none;
  transition: all .15s ease;
  font-family: inherit;
  width: 100%;
  text-align: left;
  box-sizing: border-box;
}

/* Submenu-Toggle im Root-Menu (nicht in verschachtelten Submenüs) */
.primary-nav .menu.root > .has-submenu > .submenu-toggle {
  padding: 10px 14px;
  border: 1px solid #00000020;
  border-radius: 6px;
  background: #fff;
}

.primary-nav .submenu-toggle:hover {
  background: rgba(0, 0, 0, .05);
  color: var(--accent);
}

/* Hover für Root-Menu Toggle-Buttons */
.primary-nav .menu.root > .has-submenu > .submenu-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(187, 10, 48, .05);
}

.primary-nav .submenu-toggle:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.primary-nav .submenu-toggle[aria-expanded="true"] {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(187, 10, 48, .05);
}

@media (prefers-color-scheme: dark) {
  .primary-nav .submenu-toggle {
    background: transparent;
    color: #f2f2f2;
    border-color: transparent;
  }
  
  /* Root-Menu Toggle-Buttons im Dark Mode */
  .primary-nav .menu.root > .has-submenu > .submenu-toggle {
    background: #151515;
    border-color: #ffffff20;
  }
  
  .primary-nav .submenu-toggle:hover {
    background: rgba(255, 255, 255, .1);
    color: #ffffff;
  }
  
  .primary-nav .menu.root > .has-submenu > .submenu-toggle:hover {
    border-color: var(--accent);
    background: rgba(187, 10, 48, .2);
  }
  
  .primary-nav .submenu-toggle[aria-expanded="true"] {
    background: rgba(187, 10, 48, .2);
  }
}

/* Active link */
.primary-nav a.is-active {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* Nested submenus (z.B. Technik → Motoren → MC-2) */
.primary-nav .submenu .has-submenu {
  position: relative;
  overflow: visible;
}

.primary-nav .submenu .submenu {
  top: 0;
  left: 100%;
  margin-left: 4px;
  z-index: 1002;
  overflow: visible;
  max-height: none;
}

/* --- Mobile Verhalten --- */
@media (max-width: 900px) {
  .primary-nav .nav-toggle {
    display: block;
  }
  
  .primary-nav .menu.root {
    grid-auto-flow: row;
    justify-content: stretch;
    gap: 6px;
    padding: 8px 12px;
  }
  
  .primary-nav .menu.root[data-collapsed="true"] {
    display: none;
  }
  
  .primary-nav .has-submenu {
    position: static;
  }
  
  .primary-nav .submenu {
    position: static;
    min-width: 0;
    border-radius: 8px;
    box-shadow: none;
    border: 1px solid #00000020;
    display: none;
    margin-top: 6px;
    margin-left: 12px;
  }
  
  .primary-nav .submenu[data-open="true"] {
    display: block;
  }
  
  /* Nested submenus auf Mobile */
  .primary-nav .submenu .submenu {
    position: static;
    margin-left: 12px;
    margin-top: 6px;
  }
}

/* NoScript Fallback */
.primary-nav .noscript-open {
  padding: 10px 16px;
  list-style: none;
  margin: 0;
}

.primary-nav .noscript-open ul {
  margin: 6px 0 6px 16px;
  list-style: disc;
}

.primary-nav .noscript-open a {
  color: #444;
  text-decoration: underline;
}

@media (prefers-color-scheme: dark) {
  .primary-nav .noscript-open a {
    color: #f2f2f2;
  }
}