/* Стили для шапки сайта */
.header {
  background-color: var(--card-background);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-primary);
}

.logo-icon {
  width: 40px;
  height: 40px;
  background-color: var(--primary-accent);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 18px;
}

.logo-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 24px;
  margin: 0;
}

.nav-link {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--button-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--button-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Мобильное меню */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 3px;
  background-color: var(--text-primary);
  transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Адаптивность */
@media (max-width: 1024px) {
  .nav {
    gap: 24px;
  }
  
  .nav-list {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .nav-list {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .logo-text {
    font-size: 20px;
  }
}

@media (max-width: 480px) {
  .header-content {
    padding: 12px 0;
  }
  
  .logo-icon {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  
  .logo-text {
    font-size: 18px;
  }
  
  .header-actions .btn {
    padding: 8px 16px;
    font-size: 14px;
  }
}