/* Header Navigation */
.header-nav {
  background-color: rgba(15, 15, 16, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--accent-color);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(255, 217, 102, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-brand {
  font-size: 20px;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
  letter-spacing: 1px;
  transition: color 0.3s ease;
  white-space: nowrap;
}

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

.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}

.nav-menu li {
  margin: 0;
  padding: 0;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown__details {
  height: 100%;
}

.nav-dropdown__summary {
  gap: 6px;
  list-style: none;
  cursor: pointer;
}

.nav-dropdown__summary::-webkit-details-marker {
  display: none;
}

.nav-dropdown__caret {
  font-size: 11px;
  line-height: 1;
  transition: transform 0.2s ease;
}

.nav-dropdown__details[open] .nav-dropdown__caret {
  transform: rotate(180deg);
}

.nav-dropdown__menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  margin: 0;
  padding: 8px 0;
  list-style: none;
  background-color: rgba(15, 15, 16, 0.98);
  border: 1px solid rgba(255, 217, 102, 0.25);
  border-top: 0;
  border-radius: 0 0 12px 12px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
  z-index: 101;
}

.nav-dropdown__details[open] .nav-dropdown__menu,
.nav-dropdown__details:hover .nav-dropdown__menu,
.nav-dropdown__details:focus-within .nav-dropdown__menu {
  display: block;
}

.nav-dropdown__menu .nav-link {
  height: auto;
  min-height: 42px;
  padding: 10px 18px;
  border-bottom: 0;
  white-space: nowrap;
}

.nav-locale-item {
  display: flex;
  align-items: center;
  padding: 0 4px 0 8px;
}

.nav-locale-form {
  margin: 0;
}

.nav-locale-select {
  height: 34px;
  min-width: 0;
  width: auto;
  padding: 0 20px 0 8px;
  border: 1px solid rgba(255, 217, 102, 0.4);
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.06);
  color: var(--primary-color);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
}

.nav-locale-select:hover,
.nav-locale-select:focus {
  border-color: var(--accent-color);
  outline: none;
}

.nav-link {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 16px;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  border-bottom: 3px solid transparent;
  position: relative;
}

.nav-premium-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 18px;
  margin-left: 8px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--accent-color);
  color: #111;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

.nav-link:hover {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

.nav-link--active {
  color: var(--accent-color);
  border-bottom-color: var(--accent-color);
}

.nav-link--external::after {
  content: '↗';
  font-size: 0.8em;
  margin-left: 4px;
  vertical-align: middle;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-container {
    height: auto;
    flex-wrap: wrap;
    padding: 10px 15px;
  }

  .nav-brand {
    font-size: 16px;
    flex: 1;
    padding: 10px 0;
  }

  .nav-menu {
    flex-basis: 100%;
    flex-wrap: wrap;
    gap: 0;
    margin-top: 10px;
  }

  .nav-dropdown {
    flex: 1 1 100%;
  }

  .nav-dropdown__details {
    width: 100%;
  }

  .nav-dropdown__summary {
    width: 100%;
    justify-content: center;
  }

  .nav-dropdown__menu {
    position: static;
    min-width: 0;
    border-radius: 0 0 10px 10px;
    box-shadow: none;
  }

  .nav-link {
    padding: 10px 12px;
    font-size: 14px;
    flex: 1;
    text-align: center;
    min-width: 80px;
  }

  .nav-locale-item {
    flex: 0 0 auto;
    justify-content: flex-end;
    padding: 6px 4px;
  }

  .nav-locale-select {
    min-width: 0;
    height: 32px;
    font-size: 15px;
  }

  .nav-premium-badge {
    min-width: 24px;
    height: 16px;
    margin-left: 6px;
    padding: 0 5px;
    font-size: 10px;
  }
}

@media (max-width: 480px) {
  .nav-container {
    padding: 10px;
  }

  .nav-brand {
    font-size: 14px;
  }

  .nav-menu {
    gap: 0;
  }

  .nav-dropdown__menu .nav-link {
    min-height: 38px;
    padding: 8px 12px;
  }

  .nav-link {
    padding: 8px 8px;
    font-size: 12px;
    min-width: 60px;
  }

  .nav-locale-select {
    min-width: 0;
    font-size: 14px;
    padding: 0 18px 0 6px;
  }

  .nav-premium-badge {
    margin-left: 4px;
    min-width: 22px;
  }
}