* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: linear-gradient(to right, #f4f7fa, #eaf1f8);
  color: #333;
}
.main-container {
  max-width: 600px;
  margin: 80px auto;
  background: #fff;
  padding: 40px;
  border-radius: 20px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  text-align: center;
}
h1 {
  font-size: 28px;
  color: #1a73e8;
  margin-bottom: 20px;
}
input[type="text"] {
  width: 100%;
  padding: 14px;
  font-size: 18px;
  border: 2px solid #dfe3e8;
  border-radius: 10px;
  margin-bottom: 20px;
}
button {
  padding: 14px 24px;
  background-color: #1a73e8;
  color: #fff;
  font-size: 18px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s ease;
}
button:hover {
  background-color: #145dbf;
}
#result {
  margin-top: 20px;
  padding: 16px;
  background-color: #f1f3f4;
  border-radius: 10px;
  min-height: 40px;
}
footer {
  margin-top: 60px;
  text-align: center;
  padding: 30px;
  background-color: #f4f6f8;
  border-top: 1px solid #e2e8f0;
}
footer p {
  margin-bottom: 10px;
}
footer a {
  color: #1a73e8;
  margin: 0 10px;
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}
footer .affiliate-buttons {
  margin-top: 20px;
}
footer .affiliate-buttons a button {
  margin: 8px;
  background-color: #ffb300;
  color: #000;
  border: none;
  border-radius: 10px;
  padding: 12px 20px;
  font-weight: bold;
}
footer .affiliate-buttons a button:hover {
  background-color: #f1a000;
}