/* =========================================================
   KANZLEI BREITBARTH – NAVIGATION
   ========================================================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--duration-mid) var(--ease-gentle);
}

.nav.scrolled {
  box-shadow: var(--shadow-nav);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-8);
}

/* --- Logo / Name --- */
.nav__logo {
  font-family: var(--font-sans);
  font-size: var(--fs-small);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-near-black);
  text-decoration: none;
  transition: color var(--duration-fast);
  flex-shrink: 0;
}

.nav__logo:hover {
  color: var(--color-green);
}

.nav__logo-sub {
  font-size: var(--fs-xs);
  font-weight: var(--fw-regular);
  letter-spacing: 0.08em;
  color: var(--color-gray-500);
  display: block;
  margin-top: 1px;
}

/* --- Links --- */
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav__link {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-gray-600);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-gentle);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-green);
  transition: width var(--duration-mid) var(--ease-premium);
}

.nav__link:hover {
  color: var(--color-near-black);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__link.active {
  color: var(--color-near-black);
}

/* --- CTA Button in Nav --- */
.nav__cta {
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: 0.06em;
  padding: 0.6rem 1.25rem;
  background: var(--color-green);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--duration-mid) var(--ease-premium);
  white-space: nowrap;
  margin-left: var(--space-4);
}

.nav__cta:hover {
  background: var(--color-green-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59, 100, 52, 0.25);
}

/* --- Mobile Toggle --- */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  cursor: pointer;
  padding: var(--space-2);
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-near-black);
  transition: all var(--duration-mid) var(--ease-premium);
  transform-origin: center;
}

.nav__toggle.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav__toggle.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- Mobile Menu --- */
.nav__mobile {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--color-white);
  border-top: 1px solid var(--color-gray-300);
  padding: var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transform: translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: all var(--duration-mid) var(--ease-premium);
  box-shadow: var(--shadow-lg);
}

.nav__mobile.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
}

.nav__mobile .nav__link {
  font-size: var(--fs-small);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.nav__mobile .nav__cta {
  margin-left: 0;
  text-align: center;
  padding: 0.875rem;
  margin-top: var(--space-2);
}

@media (max-width: 1024px) {
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }
}