body {
  font-family: 'Roboto', sans-serif;
  background-color: #f2f2f2;
  padding: 30px;
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 30px;
  background-color: #fff;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
  border-radius: 10px;
}

h1 {
  text-align: center;
  color: #333;
  font-weight: 500;
  margin-bottom: 20px;
}

.description {
  text-align: center;
  font-size: 18px;
  color: #666;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 5px;
}

input[type="date"],
input[type="number"],
select {
  width: 100%;
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  font-size: 16px;
}

button.btn-primary {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 5px;
  background-color: #2979ff;
  color: #fff;
  font-size: 18px;
  margin-top: 20px;
}

button.btn-secondary {
  width: 100%;
  padding: 10px;
  border: none;
  border-radius: 5px;
  background-color: #eee;
  color: #333;
  font-size: 18px;
  margin-top: 10px;
}

.result-text {
  background-color: #f1f8e9;
  border: 1px solid #c5e1a5;
  padding: 20px;
  border-radius: 5px;
  color: #33691e;
  margin-top: 30px;
  text-align: center;
}

.footer {
  text-align: center;
  margin-top: 50px;
  font-size: 14px;
  color: #aaa;
}

.footer a {
  color: #2979ff;
  text-decoration: none;
}

.footer a:hover {
  color: #1e88e5;
}