.header {
  background: rgb(0, 38, 133);
  background: linear-gradient(180deg, rgba(0, 38, 133, 1) 0%, rgba(0, 35, 159, 1) 50%, rgba(0, 48, 191, 1) 100%);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 40px 0px 10px 0px;
}

/* logo bên trái */
.header__logo img {
  width: 70px;
  height: 70px;
}




/* search box ở giữa */
.header__search {
  box-sizing: border-box;
  width: 50%;
  max-width: 500px;
  position: relative;
}

.header__search form {
  position: relative;
}

.header-search__submit {
  border: none;
  outline: none;
  background: none;
  position: absolute;
  padding: 10px;
  right: 0;
  top: 0;
  cursor: pointer;
}





/* action các nút điều hướng bên phải của header */
.header__action {
  display: flex;
  align-items: center;
}

.header__item {
  color: rgb(255, 255, 255);
  padding: 10px;
  margin: 5px;
  border-radius: 20px;
  transition: background-color 0.3s;
}

.header__item a i {
  padding-right: 3px;
}

.header__item:hover {
  background-color: rgba(0, 0, 0, 0.2);
}




/* ============================================= nav =========================== */
.navbar {
  background-color: rgb(237, 237, 237);
  padding: 0;
}

.navbar__item {
  color: #000;
  padding: 15px;
  cursor: pointer;
  transition: background-color 0.3s;
}

.navbar__item:hover {
  background-color: rgba(0, 0, 0, 0.1);
}