body {
  font-family: sans-serif;
  font-size: 16px;
  line-height: 1.4;
  color: #222;
  background-color: #f9f9f9;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: bold;
  color: #222;
}

h1 {
  font-size: 48px;
  line-height: 1.2;
}

h2 {
  font-size: 36px;
  line-height: 1.3;
}

h3 {
  font-size: 24px;
  line-height: 1.4;
}

p {
  margin: 0 0 10px 0;
}

a {
  color: #0645AD;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.btn {
  display: inline-block;
  padding: 8px 16px;
  font-size: 16px;
  line-height: 1.4;
  border-radius: 4px;
  background-color: #0645AD;
  color: #fff;
  text-decoration: none;
  text-align: center;
  transition: background-color 0.3s ease;
}

.btn:hover {
  background-color: #357AE8;
}

form {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 40px 0;
}

form input[type=text] {
  padding: 12px 16px;
  font-size: 20px;
  border-radius: 4px 0 0 4px;
  border: none;
  flex: 1;
}

form button[type=submit] {
  padding: 12px 16px;
  font-size: 20px;
  border-radius: 0 4px 4px 0;
  border: none;
  background-color: #0645AD;
  color: #fff;
}

.weather-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.weather-icon {
  font-size: 64px;
  margin-bottom: 20px;
}

.weather-condition