body {
  font-family: "Vazir", sans-serif;
  direction: rtl;
  background: #f7f7f7;
  margin: 0;
  padding: 2rem;
  color: #333;
}

h2 {
  text-align: center;
  color: #004785;
}

form {
  background: white;
  padding: 2rem;
  border-radius: 8px;
  max-width: 500px;
  margin: auto;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

label {
  display: block;
  margin-top: 1rem;
  font-weight: bold;
}

input, select, button {
  width: 100%;
  padding: 0.6rem;
  margin-top: 0.5rem;
  border-radius: 5px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

button {
  background: #004785;
  color: white;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  margin-top: 1.5rem;
  transition: background 0.3s;
}

button:hover {
  background: #00336c;
}

#result {
  margin-top: 2rem;
  background: #e0f7fa;
  padding: 1rem;
  border-radius: 8px;
  text-align: center;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
}