/* ==========================================================================
   navigation.css (projektabhängig)
   - Global Header Basis (site-header)
   - Variante 3: Fixed Header + Navigation (Desktop/Tablet + Mobile)
   - Desktop: SubNav per Hover via JS (details[open]) + position: fixed (kein Layout-Shift)
   - Mobile: Hamburger-Overlay (details) + Header-Farben/Logo-Filter
   ========================================================================== */


/* ==========================================================================
   (0) GLOBAL HEADER (Basis) – falls site-header verwendet wird
   ========================================================================== */

.site-header{
  width: 100%;
  padding-block: var(--space-header-y);
}

.site-header--light{ background: var(--c-bg-light); color: var(--c-text-on-light); }
.site-header--dark { background: var(--c-bg-dark);  color: var(--c-text-on-dark);  }


/* ==========================================================================
   (1) FIXED HEADER LAYER (Variante 3)
   - liegt über Hero/Bild
   - Wrapper nimmt keine Pointer-Events, Inhalt schon
   ========================================================================== */

.siteHeaderFixed{
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--header-z);
  background: transparent;

  pointer-events: none;
}
.siteHeaderFixed *{ pointer-events: auto; }

/* Grid 68 Kopfbereich */
.header68{
  display: grid;
  grid-template-columns: 664fr 872fr; /* wie grid--68 */
  column-gap: var(--g-3);
  align-items: start;

  padding-top: var(--container-pad);
  overflow: visible;
}

/* Logo */
.brand{
  display: inline-flex;
  align-items: flex-start;
  width: fit-content;
  text-decoration: none;
}

.container .brand__img{
  display: block;
  height: var(--header-logo-height);
  width: auto;
  border-radius: 0;
}


/* ==========================================================================
   (2) NAV BUTTONS (Hauptmenü + Submenü)
   ========================================================================== */

.navBtn{
  display: inline-flex;
  align-items: center;
  justify-content: center;

  height: var(--btn-size);
  padding-inline: 1em;

  border-radius: 999px;
  border: 0;

  text-decoration: none;
  cursor: pointer;

  font-size: var(--btn-font-size);
  line-height: var(--btn-line-height);
  letter-spacing: var(--btn-letter-spacing);
  font-weight: var(--fw-semibold);

  transition:
    background-color var(--btn-transition),
    color var(--btn-transition);
}

/* Hauptmenü: weiß -> neon */
.navBtn--main{
  background: var(--nav-main-bg);
  color: var(--nav-main-fg);
}
.navBtn--main:hover,
.navBtn--main:focus-visible,
.navBtn--main:active{
  background: var(--c-neon);
  color: var(--c-marine);
}

/* Submenü-Buttons: marine + neon Rahmen/Text, hover neon */
.navBtn--sub{
  background: var(--c-marine);
  color: var(--c-neon);
  border: 2px solid var(--c-neon);
}
.navBtn--sub:hover,
.navBtn--sub:focus-visible,
.navBtn--sub:active{
  background: var(--c-neon);
  color: var(--c-marine);
}


/* ==========================================================================
   (2.1) ACTIVE STATES (Desktop + Mobile)
   - Aktiver SubLink: neon Hintergrund
   - Parent (Elektroniklösungen): neon + underline bei aktivem SubLink
   ========================================================================== */

/* Aktiver SubLink – Desktop SubNav */
.subNav a[aria-current="page"].navBtn--sub,
.subNav a.is-active.navBtn--sub,
.subNav a.active.navBtn--sub,
.subNav a.current.navBtn--sub{
  background: var(--c-neon);
  color: var(--c-marine);
  border-color: var(--c-neon);
}

/* Aktiver SubLink – Mobile SubNav */
.mobNav__subList a[aria-current="page"].navBtn--sub,
.mobNav__subList a.is-active.navBtn--sub,
.mobNav__subList a.active.navBtn--sub,
.mobNav__subList a.current.navBtn--sub{
  background: var(--c-neon);
  color: var(--c-marine);
  border-color: var(--c-neon);
}

/* Parent-Button (Desktop): neon + underline, wenn SubLink aktiv */
@media (min-width: 960px){
  details.navDrop:has(.subNav a[aria-current="page"]) > summary.navBtn--main,
  details.navDrop:has(.subNav a.is-active) > summary.navBtn--main,
  details.navDrop:has(.subNav a.active) > summary.navBtn--main,
  details.navDrop:has(.subNav a.current) > summary.navBtn--main{
    background: var(--c-neon);
    color: var(--c-marine);

    text-decoration: underline;
    text-decoration-thickness: 0.12em;
    text-underline-offset: 0.22em;
  }
}

/* Parent-Button (Mobile): neon + underline, wenn SubLink aktiv */
@media (max-width: 959.98px){
  .mobNav__sub:has(.mobNav__subList a[aria-current="page"]) > summary,
  .mobNav__sub:has(.mobNav__subList a.is-active) > summary,
  .mobNav__sub:has(.mobNav__subList a.active) > summary,
  .mobNav__sub:has(.mobNav__subList a.current) > summary{
    background: var(--c-neon);
    color: var(--c-marine);

    text-decoration: underline;
    text-decoration-thickness: 0.12em;
    text-underline-offset: 0.22em;
  }
}

/* Falls JS-Fallback-Klasse genutzt wird (optional/alt) */
.mobNav__sub.mobNav__sub--hasActive > summary{
  text-decoration: underline;
  text-decoration-thickness: 0.12em;
  text-underline-offset: 0.22em;
}


/* ==========================================================================
   (2.2) LIST RESET (Navigation only)
   - verhindert globale li + li Abstände im Menü
   ========================================================================== */

.mainNav li + li,
.subNav li + li,
.mobNav li + li{
  margin-top: 0 !important;
}


/* ==========================================================================
   (3) DESKTOP/TABLET NAV (ab 960px)
   - SubNav wird NICHT per CSS-Hover geöffnet
   - JS setzt details.navDrop[open] und CSS rendert SubNav (fixed)
   - Position kommt aus JS Variablen:
     --subnav-top / --subnav-left / --subnav-width
   ========================================================================== */

.mainNav{
  position: relative;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;

  padding-top: var(--nav-gap);
  padding-inline: var(--nav-gap);
}

.mainNav__list{
  list-style: none;
  margin: 0;
  padding: 0;

  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--nav-gap);
}

.mainNav__item{ margin: 0; }

/* Marker aus (details/summary) */
.navDrop > summary{ list-style: none; }
.navDrop > summary::-webkit-details-marker{ display: none; }
.navDrop > summary::marker{ content: ""; }

/* Standard: SubNav aus (wichtig: verhindert jegliches Verschieben) */
.subNav{ display: none; }

/* Desktop/Tablet only */
@media (min-width: 960px){

  /* Zusätzliche Absicherung: SubNav bleibt aus, bis details open ist */
  .subNav{
    display: none !important;
  }

  /* Wenn per JS geöffnet: SubNav anzeigen + fixed positionieren */
  details.navDrop[open] > .subNav{
    display: flex !important;

    position: fixed !important;
    left: var(--subnav-left) !important;
    width: var(--subnav-width) !important;
    right: auto !important;

    top: calc(var(--subnav-top) + var(--nav-gap)) !important;

    margin: 0 !important;
    padding-inline: 0 !important;
    list-style: none !important;

    flex-wrap: wrap !important;
    gap: var(--nav-gap) !important;
    align-items: center !important;

    z-index: calc(var(--header-z) + 2) !important;
  }

  /* Hover-Brücke: verhindert "Hover-Gap" zwischen summary und SubNav */
  details.navDrop[open] > summary{
    position: relative;
  }
  details.navDrop[open] > summary::after{
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    height: var(--nav-gap);
    background: transparent;
  }
}

/* ==========================================================================
   Aktiver Hauptmenüpunkt (kein Submenü, normale Seiten)
   ========================================================================== */

.mainNav a[aria-current="page"].navBtn--main,
.mainNav a.is-active.navBtn--main,
.mainNav a.active.navBtn--main,
.mainNav a.current.navBtn--main,

.mobNav a[aria-current="page"].navBtn--main,
.mobNav a.is-active.navBtn--main,
.mobNav a.active.navBtn--main,
.mobNav a.current.navBtn--main{
  background: var(--c-neon);
  color: var(--c-marine);
}

/* ==========================================================================
   (4) MOBILE HAMBURGER + PANEL (bis 959px)
   - Mobile nutzt <details class="mobNav__drop">
   - Desktop-Menü ausblenden
   - Panel startet unterhalb des Kopfbereichs (mobHeader-h)
   ========================================================================== */

.mobNav{ display: none; }

@media (max-width: 959.98px){

  :root{
    --mobNav-gap: calc(var(--nav-gap) * 0.6);
    --mobHeader-h: calc(72px + var(--container-pad));
  }

  /* Desktop-Menü aus */
  .mainNav{ display: none; }

  /* Fixed Header Layer bekommt Fläche */
  .siteHeaderFixed{
    background: var(--c-marine);
    z-index: var(--header-z);
  }

  /* Kopfbereich: Logo links, Burger rechts */
  .header68{
    grid-template-columns: 1fr auto;
    column-gap: var(--g-2);
    align-items: center;

    padding-top: var(--container-pad);
    padding-inline: var(--container-pad);

    min-height: var(--mobHeader-h);
  }

  /* optional: Mobile-Logo kleiner */
  .brand__img{ height: 36px; }

  /* Mobile Nav sichtbar */
  .mobNav{
    display: flex;
    justify-content: flex-end;
    align-items: center;
  }

  .mobNav__drop{ position: relative; }

  /* Burger Button */
  .mobNav__btn{
    list-style: none;
    cursor: pointer;

    width: var(--btn-size);
    height: var(--btn-size);

    display: grid;
    place-items: center;

    border-radius: 999px;

    background: color-mix(in srgb, var(--c-gray) 25%, transparent);
    color: var(--c-gray);

    transition:
      background-color var(--btn-transition),
      color var(--btn-transition);
  }

  .mobNav__btn::-webkit-details-marker{ display:none; }
  .mobNav__btn::marker{ content:""; }

  /* Hamburger Icon */
  .mobNav__icon{
    width: 22px;
    height: 2px;
    background: currentColor;
    position: relative;
    border-radius: 999px;
  }
  .mobNav__icon::before,
  .mobNav__icon::after{
    content: "";
    position: absolute;
    left: 0;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 999px;
  }
  .mobNav__icon::before{ top: -7px; }
  .mobNav__icon::after { top:  7px; }

  /* X beim Öffnen */
  .mobNav__drop[open] .mobNav__icon{ background: transparent; }
  .mobNav__drop[open] .mobNav__icon::before{
    top: 0;
    transform: rotate(45deg);
  }
  .mobNav__drop[open] .mobNav__icon::after{
    top: 0;
    transform: rotate(-45deg);
  }

  .mobNav__icon,
  .mobNav__icon::before,
  .mobNav__icon::after{
    transition:
      transform var(--btn-transition),
      top var(--btn-transition),
      background-color var(--btn-transition);
  }

  /* Panel beginnt unterhalb des Kopfbereichs */
  .mobNav__panel{
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: var(--mobHeader-h);

    padding-block: var(--container-pad);
    padding-inline: var(--container-pad);

    background: color-mix(in srgb, var(--c-marine) 92%, transparent);
    z-index: calc(var(--header-z) - 1);

    display: flex;
    justify-content: flex-end;
    align-items: flex-start;

    overflow: auto;
    -webkit-overflow-scrolling: touch;
  }

  .mobNav__drop:not([open]) .mobNav__panel{ display: none; }

  /* Buttonblock rechts, alle gleich breit */
  .mobNav__list{
    list-style: none;
    margin: 0;
    padding: 0;

    display: inline-grid;
    gap: var(--mobNav-gap);

    width: max-content;
    justify-items: stretch;
  }

  .mobNav__item{ margin: 0; }

  /* Buttons: gleiche Breite, Text linksbündig */
  .mobNav__panel .navBtn{
    width: 100%;
    justify-content: flex-start;
    padding-inline: 1.2em;
  }

  /* Mobile Submenü (innerhalb Panel) */
  .mobNav__sub > summary{ list-style: none; }
  .mobNav__sub > summary::-webkit-details-marker{ display:none; }
  .mobNav__sub > summary::marker{ content:""; }

  .mobNav__subList{
    list-style: none;
    margin: var(--mobNav-gap) 0 0;
    padding: 0;

    display: grid;
    gap: var(--mobNav-gap);
    justify-items: stretch;
  }

  /* Mobile Header-Farben (TYPO3: .content-header) */
  .content-header{
    background: var(--c-marine);
    color: #fff;
  }

  /* Logo hell (Filter statt zweiter Datei) */
  .content-header .brand__img{
    filter: brightness(0) invert(1);
  }
}