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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  display: flex;
  height: 100vh;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f2f2f2, #d9e2ec);
}

.form-container {
  background: #ffffff;
  padding: 30px 40px;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  width: 100%;
  max-width: 400px;
  animation: fadeIn 0.5s ease-in-out;
}

.form-container h2 {
  margin-bottom: 20px;
  text-align: center;
  color: #333333;
}

input {
  display: block;
  margin-bottom: 15px;
  padding: 12px 15px;
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 8px;
  font-size: 16px;
  transition: border-color 0.3s ease;
}

input:focus {
  border-color: #4CAF50;
  outline: none;
}

button {
  padding: 12px;
  width: 100%;
  background-color: #4CAF50;
  color: white;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

button:hover {
  background-color: #45a049;
  transform: translateY(-1px);
}

#message {
  margin-top: 15px;
  text-align: center;
  font-size: 15px;
  font-weight: 500;
  color: green;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}