* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #cde6fc;
}

.container {
  background-color: rgba(160, 215, 224, 0.582);
}

nav {
  display: flex;
  width: 100%;
  justify-content: space-around;
  height: 90px;
  background-color: #2575fc;
  align-items: center;
  box-shadow: 5px 4px 20px 3px rgba(0, 0, 0, 0.75);
  flex-wrap: wrap;
}

.logo img {
  border-radius: 20px;
  height: 60px;
}

ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 0;
  margin: 0;
}

ul li {
  text-decoration: none;
  list-style: none;
}

ul li a {
  text-decoration: none;
  color: #fff;
  font-size: 18px;
  margin: 5px 15px;
  padding: 5px 0px;
  transition: all 0.5s ease-in-out;
}

ul li a:hover {
  border-bottom: 1px solid rgb(107, 3, 3);
}

.sign-in {
  position: relative;
  background-color: #eb2f2f;
  border: none;
  color: white;
  padding: 10px 25px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 18px;
  cursor: pointer;
  border-radius: 5px;
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: all 0.5s ease-in-out;
}

.sign-in::before {
  content: '';
  position: absolute;
  top: 0;
  left: -90%;
  width: 200%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: skewX(-30deg);
  transition: 0.5s;
}

.sign-in:hover::before {
  left: 110%;
}

.sign-in:hover {
  background: linear-gradient(135deg, #5a01ab 0%, #1565c0 100%);
  transform: scale(1.1);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.2);
}

.sign-in:active {
  background: linear-gradient(135deg, #490089 0%, #0b4b82 100%);
  transform: scale(1);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.search {
  display: flex;
  align-items: center;
}

.search input {
  padding: 10px 12px;
  border-radius: 10px;
  color: red;
  font-size: 14px;
  font-weight: bold;
  border: none;
  outline: none;
  width: 200px;
}

.search input:focus {
  border: none;
  font-weight: 400;
}

.search i {
  position: relative;
  left: -30px;
  cursor: pointer;
  color: red;
}

@media (max-width: 768px) {
  nav {
    flex-direction: column;
    height: auto;
  }

  nav>* {
    margin: 8px 0px;
  }

  .logo img {
    height: 50px;
  }

  ul {
    flex-direction: column;
    align-items: center;
  }

  ul>* {
    padding: 5px 2px;
    margin: 5px 0px;
  }

  ul li a {
    margin: 10px 0;
  }

  .search {
    margin-top: 10px;
  }

  .search input {
    width: 150px;
  }
}

@media (max-width: 480px) {
  .logo img {
    height: 40px;
  }

  ul li a {
    font-size: 16px;
    margin: 8px 0;
  }

  .sign-in {
    padding: 8px 20px;
    font-size: 16px;
  }

  .search input {
    width: 100px;
    font-size: 12px;
  }
}