/* ================================================================
   Gemeinsamer Header — identisch auf allen Seiten von weg-kontor.de.
   Eigene, header-lokale Custom Properties (Präfix --hdr-) statt der
   Seiten-eigenen Tokens (--ink/--paper/--line/--brass bedeuten auf den
   "alten" Seiten -- ueber-uns.html, kontakt.html, impressum.html,
   datenschutz.html -- etwas anderes als auf den "neuen" Seiten und
   dürfen nicht überschrieben werden, ohne den Rest dieser Seiten
   mitzufärben). So funktioniert der Header überall identisch, unabhängig
   vom Token-System der jeweiligen Seite.
   ================================================================ */

:root {
  --hdr-paper: #F6F2E8;
  --hdr-line: #DED5C0;
  --hdr-petrol: #123A34;
  --hdr-petrol-dark: #0B2622;
  --hdr-brass: #A97A34;
  --hdr-ink: #1D2B29;
  --hdr-ink-soft: #51625E;
  --hdr-radius: 3px;
  --hdr-maxw: 1120px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--hdr-paper);
  border-bottom: 1px solid var(--hdr-line);
  transition: box-shadow .2s ease;
}
.site-header.is-scrolled {
  box-shadow: 0 1px 0 var(--hdr-line), 0 4px 12px rgba(0, 0, 0, .06);
}

.site-header .nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: var(--hdr-maxw);
  margin: 0 auto;
  padding: 1rem 1.5rem;
}

.site-header .logo {
  font-family: 'Fraunces', Georgia, serif;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--hdr-ink);
  text-decoration: none;
  letter-spacing: .01em;
  white-space: nowrap;
}
.site-header .logo .logo-suffix { color: var(--hdr-brass); font-weight: 500; }

.site-header nav.primary-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.site-header nav.primary-nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}
.site-header nav.primary-nav a:not(.hdr-btn) {
  text-decoration: none;
  font-size: .95rem;
  font-weight: 500;
  color: var(--hdr-ink-soft);
  padding-bottom: 6px;
  border-bottom: 2px solid transparent;
  transition: color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.site-header nav.primary-nav a:not(.hdr-btn):hover {
  color: var(--hdr-petrol-dark);
}
.site-header nav.primary-nav a:not(.hdr-btn)[aria-current="page"] {
  color: var(--hdr-brass);
  border-bottom-color: var(--hdr-brass);
}

.hdr-btn {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  background: rgb(18, 58, 52);
  color: rgb(246, 242, 232);
  border: 1.5px solid rgb(18, 58, 52);
  padding: 10.5px 20.5px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  transition: background .15s ease, border-color .15s ease;
}
.hdr-btn:hover { background: #0E2E29; border-color: #0E2E29; }

/* ---------- Hamburger (mobil) ---------- */
.hdr-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--hdr-petrol-dark);
  flex-shrink: 0;
}
.hdr-burger svg { width: 24px; height: 24px; }
.hdr-burger .icon-close { display: none; }
.hdr-burger[aria-expanded="true"] .icon-open { display: none; }
.hdr-burger[aria-expanded="true"] .icon-close { display: block; }

/* ---------- Vollbild-Overlay (mobil) ---------- */
.hdr-overlay {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--hdr-paper);
  border-top: 1px solid var(--hdr-line);
  box-shadow: 0 4px 20px rgba(0, 0, 0, .08);
  display: flex;
  flex-direction: column;
  padding: 88px 1.5rem 2rem;
  opacity: 0;
  transform: translateY(-8px);
  visibility: hidden;
  transition: opacity .3s ease, transform .3s ease, visibility 0s linear .3s;
}
.hdr-overlay.is-open {
  opacity: 1;
  transform: translateY(0);
  visibility: visible;
  transition: opacity .3s ease, transform .3s ease, visibility 0s linear 0s;
}
.hdr-overlay nav {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.hdr-overlay nav a:not(.hdr-btn) {
  text-decoration: none;
  font-size: 22px;
  font-weight: 500;
  color: var(--hdr-ink);
}
.hdr-overlay nav a:not(.hdr-btn)[aria-current="page"] {
  color: var(--hdr-brass);
}
.hdr-overlay .hdr-btn {
  margin-top: .5rem;
  align-self: flex-start;
  font-size: 1.05rem;
  padding: .85rem 1.6rem;
}
body.hdr-scroll-lock { overflow: hidden; }

@media (max-width: 1040px) {
  .site-header nav.primary-nav > ul,
  .site-header nav.primary-nav > .hdr-btn {
    display: none;
  }
  .hdr-burger { display: inline-flex; }
}

@media (prefers-reduced-motion: reduce) {
  .hdr-overlay { transition: none; }
  .site-header { transition: none; }
}