/* ═══════════════════════════════════════════════════════
   Navigation – us-steuerstrategie.de
   CSS-only dropdowns (hover + focus-within)
   JS enhances: click toggle, mobile menu, Escape key
   ═══════════════════════════════════════════════════════ */

/* ─── Site Header ─────────────────────────────────────── */
.site-header {
  background: #0f2540;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.site-header .header-content {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 60px;
}

.site-header .logo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.site-header .logo:hover {
  opacity: 0.85;
}

/* ─── Nav List ────────────────────────────────────────── */
.main-nav {
  margin-left: auto;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-item {
  position: relative;
}

/* ─── Nav Links & Dropdown Trigger ────────────────────── */
.nav-link,
.dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.015em;
  color: rgba(255,255,255,0.72);
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.15s;
  white-space: nowrap;
}

.nav-link:hover,
.dropdown-trigger:hover,
.has-dropdown.dropdown-open > .dropdown-trigger,
.has-dropdown:hover > .dropdown-trigger {
  color: #fff;
}

/* Active page / active section */
.nav-link[aria-current="page"],
.dropdown-menu a[aria-current="page"] {
  color: #fff;
  font-weight: 500;
}

.menu-active > .dropdown-trigger {
  color: rgba(255,255,255,0.9);
}

/* ─── Dropdown Arrow ──────────────────────────────────── */
.dropdown-arrow {
  transition: transform 0.2s ease;
  opacity: 0.5;
  flex-shrink: 0;
}

.has-dropdown.dropdown-open > .dropdown-trigger .dropdown-arrow,
.has-dropdown:hover > .dropdown-trigger .dropdown-arrow {
  transform: rotate(180deg);
  opacity: 0.8;
}

/* ─── CTA Link ────────────────────────────────────────── */
.cta-link {
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 4px;
  padding: 0.4rem 1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: all 0.2s;
}

.cta-link:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}

/* ─── Dropdown Menu (CSS-only: hover + focus-within) ──── */
.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 260px;
  background: #fff;
  border: 1px solid #e0dcd4;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  padding: 0.5rem 0;
  list-style: none;
  margin: 0;
  z-index: 200;
  animation: dropdown-in 0.15s ease;
}

/* Pfeil oben */
.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: #fff;
  border-left: 1px solid #e0dcd4;
  border-top: 1px solid #e0dcd4;
}

/* CSS-only: Dropdown öffnet bei Hover und Focus */
.has-dropdown:hover > .dropdown-menu,
.has-dropdown:focus-within > .dropdown-menu,
.has-dropdown.dropdown-open > .dropdown-menu {
  display: block;
}

/* Unsichtbare Brücke zwischen Trigger und Menü */
.has-dropdown::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 8px;
}

.dropdown-menu a {
  display: block;
  padding: 0.55rem 1.25rem;
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  color: #4a4a5a;
  text-decoration: none;
  transition: background 0.12s, color 0.12s;
}

.dropdown-menu a:hover,
.dropdown-menu a:focus {
  background: #f5f5f3;
  color: #1a1a2e;
}

.dropdown-menu a[aria-current="page"] {
  color: #1a1a2e;
  font-weight: 500;
  background: #faf9f6;
}

.dropdown-menu li + li {
  border-top: 1px solid #f0ece4;
}

@keyframes dropdown-in {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

/* ─── Hamburger Toggle (hidden on desktop) ────────────── */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 110;
}

.menu-icon {
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  position: relative;
  transition: background 0.2s;
}

.menu-icon::before,
.menu-icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: #fff;
  transition: transform 0.2s;
}

.menu-icon::before {
  top: -6px;
}

.menu-icon::after {
  top: 6px;
}

.menu-icon.active {
  background: transparent;
}

.menu-icon.active::before {
  transform: rotate(45deg);
  top: 0;
}

.menu-icon.active::after {
  transform: rotate(-45deg);
  top: 0;
}

/* ─── Mobile (max-width: 768px) ───────────────────────── */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid #e0dcd4;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    padding: 0.5rem 0;
  }

  .main-nav.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-link,
  .dropdown-trigger {
    color: #2c2c2c;
    padding: 0.75rem 1.5rem;
    width: 100%;
    justify-content: space-between;
    font-size: 0.9rem;
  }

  .dropdown-menu {
    position: static;
    transform: none;
    min-width: 100%;
    box-shadow: none;
    border-radius: 0;
    border: none;
    background: #faf9f6;
    padding: 0;
    animation: none;
    display: none;
  }

  .dropdown-menu::before {
    display: none;
  }

  /* Mobile: Nur per Klick öffnen, nicht per Hover */
  .has-dropdown:hover > .dropdown-menu {
    display: none;
  }

  .has-dropdown.dropdown-open > .dropdown-menu {
    display: block;
  }

  .dropdown-menu a {
    padding: 0.6rem 1.5rem 0.6rem 2.5rem;
    font-size: 0.88rem;
    border-top: 1px solid #f0ece4;
  }

  .dropdown-menu li + li {
    border-top: none;
  }

  .cta-link {
    margin: 0.5rem 1.5rem;
    text-align: center;
    border-color: #1a3a5c;
    color: #1a3a5c !important;
    display: block;
    padding: 0.65rem 1rem !important;
  }
}

/* ─── Print ───────────────────────────────────────────── */
@media print {
  .site-header {
    display: none;
  }
}