.header {
  background-color: var(--header-bg);
  padding: var(--spacing-sm) 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header-container {
  padding: 0 var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.logo img {
  height: 50px;
  width: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex: 1;
  justify-content: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-menu a {
  color: var(--text-primary);
  font-weight: 500;
  transition: color var(--transition-fast);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: 4px;
}

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

.nav-menu a.active {
  color: var(--accent-color);
  border-bottom: 2px solid var(--accent-color);
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.burger-menu span {
  width: 25px;
  height: 3px;
  background-color: var(--text-primary);
  transition: var(--transition-normal);
  border-radius: 2px;
}

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

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

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

/* Mobile Menu */
@media (max-width: 1500px) {
  .burger-menu {
    display: flex;
  }
  
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background-color: var(--header-bg);
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-md);
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  
  .nav.active {
    transform: translateX(0);
  }
  
  .nav-menu {
    flex-direction: column;
    width: 100%;
    gap: 0;
  }
  
  .nav-menu a {
    padding: var(--spacing-sm);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    width: 100%;
    display: block;
  }
  
  .header-container {
    padding: 0 var(--spacing-sm);
  }
}


@media (max-width: 768px) {
    .logo img {
        height: 30px;
    }
}

@media (max-width: 480px) {
    .header-actions {
        width: 100%;
        justify-content: center;
        order: 3;
        margin-top: 15px;
    }

    .header-container {
        flex-wrap: wrap;
    }

    .header-actions .btn {
        width: 100% !important;
    }
}