/**
 * @file
 * Site Header – Logo + Navigation.
 */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--color-bg-secondary);
  backdrop-filter: blur(8px);
  padding: 0.5rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-base);
}

.site-header__logo img {
  height: 36px;
  width: auto;
  display: block;
}

.site-header__nav {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.site-header__nav a {
  color: var(--color-text-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--transition-fast);
  letter-spacing: 0.02em;
}

.site-header__nav a:hover,
.site-header__nav a:focus {
  color: var(--color-navy-mid);
  text-decoration: none;
}

/* Body-Offset für fixen Header */
body {
  padding-top: 52px;
}

/* Mobile: Nav ausblenden, Hamburger später */
@media (max-width: 767px) {
  .site-header__nav {
    display: none;
  }
  .site-header {
    padding: 0.5rem 1rem;
  }
  body {
    padding-top: 48px;
  }
}

/* Hamburger-Button */
.site-header__burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.site-header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  transition: transform 0.3s, opacity 0.3s;
}

/* Mobile: Burger zeigen, Nav verstecken */
@media (max-width: 767px) {
  .site-header__burger {
    display: flex;
  }

  .site-header__nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg-secondary);
    flex-direction: column;
    padding: 0.5rem 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  }

  .site-header__nav.is-open {
    display: flex;
  }

  .site-header__nav a {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--color-border-subtle);
    color: var(--color-text-primary);
    font-size: 0.9375rem;
  }

  .site-header__nav a:last-child {
    border-bottom: none;
  }

  /* Burger-Animation wenn offen */
  .site-header__burger.is-open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .site-header__burger.is-open span:nth-child(2) {
    opacity: 0;
  }
  .site-header__burger.is-open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
}

/* Header auf Mobile auch fixiert */
@media (max-width: 767px) {
  .site-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1000 !important;
  }
}

/* Header auf Mobile auch fixiert */
@media (max-width: 767px) {
  .site-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    z-index: 1000 !important;
  }
}