/* ==========================================================================
   DMW-Performance — Site Header
   ==========================================================================
   Sticky top bar containing logo, primary nav, dark-mode toggle, hamburger.
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background-color: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition:
    background-color var(--transition-base),
    box-shadow var(--transition-base),
    border-color var(--transition-base);
}

/* Stronger shadow once the user has scrolled past the top */
.site-header.is-sticky {
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Inner layout
   ========================================================================== */
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: var(--space-6);
}

/* ==========================================================================
   Logo
   ========================================================================== */
.site-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
  line-height: 1;
  letter-spacing: 0.02em;
  transition: opacity var(--transition-fast);
}

.site-logo:hover,
.site-logo:focus-visible {
  opacity: 0.85;
  color: var(--color-text);
  text-decoration: none;
}

.site-logo img,
.site-logo svg {
  height: 48px;
  width: auto;
  display: block;
}

.site-logo__text {
  margin-left: var(--space-2);
}

/* Dark-mode logo swap support — let theme JS toggle src
   These rules ensure both variants render at the same size. */
.site-logo .logo-light,
.site-logo .logo-dark {
  height: 48px;
  width: auto;
  display: block;
}

[data-theme="dark"] .site-logo .logo-light,
.site-logo .logo-dark {
  display: none;
}

[data-theme="dark"] .site-logo .logo-dark {
  display: block;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .site-logo .logo-light {
    display: none;
  }
  :root:not([data-theme="light"]) .site-logo .logo-dark {
    display: block;
  }
}

/* ==========================================================================
   Header actions (toggle + hamburger)
   ========================================================================== */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ==========================================================================
   Mobile breakpoint
   ========================================================================== */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .site-logo img,
  .site-logo svg,
  .site-logo .logo-light,
  .site-logo .logo-dark {
    height: 40px;
  }

  .header-inner {
    gap: var(--space-3);
  }
}

/* ==========================================================================
   Alientech Dealer Badge (header)
   Hidden below 1200px — the primary nav already carries six items and the
   badge would crowd it on laptop widths.
   ========================================================================== */
.header-dealer-badge {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(232, 180, 0, 0.4);
  border-radius: var(--radius-full);
  /* 11px Schrift in hellem Gold auf Weiss war mit 1,9:1 nicht lesbar.
     Der goldene Rahmen bleibt, nur die Schrift wird dunkler. */
  color: var(--color-gold-ink);
  font-size: 0.7rem;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--transition-base), color var(--transition-base);
}

.header-dealer-badge:hover,
.header-dealer-badge:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary-text);
}

@media (min-width: 1400px) {
  .header-dealer-badge {
    display: inline-flex;
  }
}