/* Services navigation dropdown */
.nav-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav .nav-dropdown__parent {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.nav-dropdown__chevron,
.mobile-nav-group__chevron {
  width: 9px;
  height: 6px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform var(--transition);
}

.nav-dropdown__menu {
  position: absolute;
  top: calc(100% + 12px);
  left: -14px;
  z-index: 30;
  width: max-content;
  min-width: 300px;
  padding: 6px;
  border: 1px solid rgba(58, 110, 104, 0.14);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 18px 45px rgba(44, 38, 30, 0.13);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-5px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.nav-dropdown__menu::before {
  content: '';
  position: absolute;
  right: 0;
  bottom: 100%;
  left: 0;
  height: 14px;
}

.nav-dropdown:hover .nav-dropdown__menu,
.nav-dropdown:focus-within .nav-dropdown__menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-dropdown:hover .nav-dropdown__chevron,
.nav-dropdown:focus-within .nav-dropdown__chevron {
  transform: rotate(180deg);
}

.nav .nav-dropdown__item {
  display: block;
  padding: 10px 12px;
  border-radius: 9px;
  color: var(--dark-60);
  font-size: 0.84rem;
  font-weight: 600;
  white-space: nowrap;
}

.nav .nav-dropdown__item:hover,
.nav .nav-dropdown__item:focus-visible,
.nav .nav-dropdown__item.nav-active {
  background: rgba(58, 110, 104, 0.08);
  color: var(--accent-dark);
}

.nav .nav-dropdown__item.nav-active::after {
  display: none;
}

.mobile-nav-group {
  border-bottom: 1px solid var(--dark-20);
}

.mobile-nav-group > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  color: var(--dark);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.mobile-nav-group > summary::-webkit-details-marker {
  display: none;
}

.mobile-nav-group > summary.nav-active {
  color: var(--accent);
}

.mobile-nav-group > summary:focus-visible {
  outline: 2px solid rgba(58, 110, 104, 0.38);
  outline-offset: 3px;
  border-radius: 4px;
}

.mobile-nav-group[open] .mobile-nav-group__chevron {
  transform: rotate(180deg);
}

.mobile-nav-group__links {
  display: grid;
  padding: 0 0 8px 16px;
}

.mobile-nav .mobile-nav-group__links a {
  padding: 9px 0;
  border-bottom: 0;
  color: var(--dark-60);
  font-size: 0.92rem;
}

.mobile-nav .mobile-nav-group__links a:hover,
.mobile-nav .mobile-nav-group__links a:focus-visible,
.mobile-nav .mobile-nav-group__links a.nav-active {
  color: var(--accent);
}

/* The Russian navigation has separate Blog and Projects entries. Switch to
   the compact menu before the full row starts compressing on tablets. */
@media (max-width: 1100px) {
  .nav { display: none; }
  .burger { display: flex; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-dropdown__menu,
  .nav-dropdown__chevron,
  .mobile-nav-group__chevron {
    transition: none;
  }
}