/* Стилі для хедера */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1002;
  background-color: #2c3e50;
  /* background-color: #597897;
    background-color: #1b5c9c; */
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  animation: slideDown 0.5s ease-out;
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  justify-content: flex-start;
  align-items: center;
}
.logo {
  margin-right: auto;
  height: 100%;
  display: flex;
  align-items: center;
}
.logo img {
  height: 50px;
  width: auto;
}
.main-nav {
  margin-left: auto;
}
.main-nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 30px;
}
.main-nav a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9em;
  text-transform: uppercase;
  transition: color 0.3s ease;
}
.main-nav a:hover {
  color: #3498db;
}
/* Мобільне меню */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 10px;
  cursor: pointer;
}
.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: white;
  margin: 5px 0;
  transition: all 0.3s ease;
}
.mobile-menu-btn.active{
  display: block;
  z-index: 1000;
}
.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}
.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}
/* Адаптивність */
@media (max-width: 1200px) {
  .mobile-menu-btn {
    display: block;
    margin-left: auto;
  }
}
/* Анімація для хедера */
@keyframes slideDown {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}