/* ─── NAVIGATION — shared base ─────────────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s var(--ease-out), padding 0.4s var(--ease-out), backdrop-filter 0.4s;
}

nav.scrolled {
  background: rgba(10, 10, 11, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  padding: 1rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--text-primary);
  line-height: 1.3;
}

.nav-logo span { color: var(--accent); }

/* ─── NAV LINKS (main pages — <ul>) ─────────────────────────────────────────── */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  position: relative;
  transition: color 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease-out);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--accent); }
.nav-links a.active::after { width: 100%; }

/* ─── NAV LINKS (angebot pages — <div>) ─────────────────────────────────────── */
.nav-links-angebot {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links-angebot a {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-links-angebot a:hover { color: var(--text-primary); }

/* ─── NAV CTA ────────────────────────────────────────────────────────────────── */
.nav-cta {
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.55rem 1.3rem;
  border: 1px solid var(--accent-border);
  color: var(--accent) !important;
  transition: background 0.3s, color 0.3s, border-color 0.3s !important;
}

.nav-cta:hover {
  background: var(--accent) !important;
  color: var(--bg) !important;
  border-color: var(--accent) !important;
}

.nav-cta::after { display: none !important; }

/* ─── NAV CONTROLS (theme + accessibility, grouped) ─────────────────────────── */
.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.a11y-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.a11y-btn {
  -webkit-appearance: none;
  appearance: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 2rem; height: 2rem;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 400;
  line-height: 1;
  transition: color .2s, border-color .2s;
  flex-shrink: 0;
}

.a11y-btn:hover { color: var(--text-primary); border-color: var(--accent); }
#contrast-toggle[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); }

/* ─── HAMBURGER (main pages — span lines) ───────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
  background: none;
  border: none;
  outline: none;
}

.hamburger span {
  display: block;
  width: 24px; height: 1px;
  background: var(--text-primary);
  transition: all 0.35s var(--ease-out);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ─── MOBILE OVERLAY (main pages) ──────────────────────────────────────────── */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 11, 0.97);
  backdrop-filter: blur(20px);
  z-index: 150;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  transition: color 0.3s;
}

.mobile-menu a:hover { color: var(--accent); }

/* ─── NAV-BURGER (angebot pages — SVG icon) ─────────────────────────────────── */
.nav-burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  color: var(--text-primary);
}

/* ─── NAV-MOBILE OVERLAY (angebot pages — opacity/visibility) ───────────────── */
.nav-mobile {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(10, 10, 11, .97);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
}

.nav-mobile.open { opacity: 1; visibility: visible; }

.nav-mobile-close {
  position: absolute;
  top: 1.5rem; right: 2rem;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
}

.nav-mobile a {
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-primary);
  text-decoration: none;
  transition: color .2s;
}

.nav-mobile a:hover { color: var(--accent); }

.nav-mobile .nm-cta {
  color: var(--accent);
  border: 1px solid var(--accent-border);
  padding: .65rem 2rem;
}

/* ─── LEGAL NAV (impressum, datenschutz) ────────────────────────────────────── */
.nav-legal {
  position: sticky;
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-back {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.nav-back:hover { color: var(--accent); }

/* ─── RESPONSIVE ────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links-angebot { display: none; }
  .nav-solid .nav-cta { display: none; }
  .hamburger { display: flex; }
  .nav-burger { display: block; }
}

@media (min-width: 769px) {
  .hamburger { display: none; }
  .nav-burger { display: none; }
  .nav-links { display: flex; }
  .nav-links-angebot { display: flex; }
}

/* ─── ANGEBOT NAV — always has background ────────────────────────────────────── */
.nav-solid {
  background: rgba(10, 10, 11, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  padding: 1.2rem 2.5rem;
}