/* --- Desktop-Navigation --- */

.nav {
  display: none;
}

@media (min-width: 1120px) {
  .nav {
    display: flex;
    align-items: center;
    gap: var(--sp-6);
    margin-left: auto;
  }
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__list li {
  margin: 0;
}

.nav__link {
  position: relative;
  display: inline-block;
  padding-block: var(--sp-2);
  color: var(--c-ink-700);
  font-size: var(--fs-small);
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background-color: var(--c-brand-700);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base);
}

.nav__link:hover {
  color: var(--c-ink-900);
}

.nav__link:hover::after {
  transform: scaleX(1);
}

.nav__link[aria-current="page"] {
  color: var(--c-ink-900);
}

.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
}

/* --- Umschalter für Mobilnavigation --- */

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-left: auto;
  padding: var(--sp-2) var(--sp-3);
  background: none;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--r-sm);
  color: var(--c-ink-900);
  font-family: inherit;
  font-size: var(--fs-small);
  font-weight: 500;
  cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.nav-toggle:hover {
  border-color: var(--c-brand-500);
  background-color: var(--c-surface-2);
}

@media (min-width: 1120px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle__bars {
  position: relative;
  width: 18px;
  height: 12px;
  flex: 0 0 auto;
}

.nav-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: currentColor;
  border-radius: 2px;
  transition: transform var(--t-base), opacity var(--t-fast);
}

.nav-toggle__bars span:nth-child(1) {
  top: 0;
}

.nav-toggle__bars span:nth-child(2) {
  top: 5px;
}

.nav-toggle__bars span:nth-child(3) {
  top: 10px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

/* --- Mobiles Overlay --- */

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background-color: var(--c-surface);
  padding: var(--sp-7) var(--gutter) var(--sp-9);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.nav-overlay[hidden] {
  display: none;
}

@media (min-width: 1120px) {
  .nav-overlay {
    display: none !important;
  }
}

.nav-overlay__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  margin-bottom: var(--sp-8);
  min-height: 40px;
}

.nav-overlay__close {
  padding: var(--sp-2) var(--sp-4);
  background: none;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--r-sm);
  color: var(--c-ink-900);
  font-family: inherit;
  font-size: var(--fs-small);
  font-weight: 500;
  cursor: pointer;
}

.nav-overlay__list {
  list-style: none;
  margin: 0 0 var(--sp-8);
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.nav-overlay__list li {
  margin: 0;
  border-bottom: 1px solid var(--c-line);
}

.nav-overlay__link {
  display: block;
  padding: var(--sp-5) 0;
  color: var(--c-ink-900);
  font-size: 1.1875rem;
  font-weight: 500;
  text-decoration: none;
}

.nav-overlay__link[aria-current="page"] {
  color: var(--c-brand-700);
}

.nav-overlay__contact {
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--c-line);
  font-size: var(--fs-small);
  color: var(--c-ink-500);
}


/* ==========================================================================
   06 Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  border-bottom: 1px solid transparent;
  transition: height var(--t-base), border-color var(--t-base),
    box-shadow var(--t-base);
  height: var(--h-header);
}

.site-header.is-compact {
  height: var(--h-header-compact);
  border-bottom-color: var(--c-line);
  box-shadow: var(--sh-1);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-5);
  height: 100%;
  max-width: var(--w-page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* --- Wortmarke --- */

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  text-decoration: none;
  color: var(--c-ink-900);
  flex: 0 0 auto;
}

.brand__logo {
  height: 34px;
  width: auto;
  flex: 0 0 auto;
}

.site-header.is-compact .brand__logo {
  height: 28px;
}

.brand__name {
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
  white-space: nowrap;
}

.brand__name em {
  font-style: normal;
  color: var(--c-brand-700);
}

.brand__legal {
  display: block;
  font-family: var(--ff-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-ink-500);
  margin-top: 2px;
}