body {
    font-family: 'Vazir', 'Tahoma', sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 20px;
    color: #333;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}
h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
}
.form-group {
    margin-bottom: 20px;
}
label {
    display: block;
    margin-bottom: 5px;
    color: #34495e;
    font-weight: bold;
}
input[type="text"],
input[type="number"],
input[type="email"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}
input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus {
    border-color: #3498db;
    outline: none;
}
button {
    background-color: #3498db;
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}
button:hover {
    background-color: #2980b9;
}
.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
}
.report {
    background-color: #ecf0f1;
    border: 1px solid #bdc3c7;
    padding: 20px;
    border-radius: 5px;
    margin-top: 30px;
}
.report h2 {
    color: #2c3e50;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
    margin-top: 0;
}
.report p {
    margin: 10px 0;
}
.message {
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
}
.message.success {
    background-color: #2ecc71;
    color: white;
}
.message.error {
    background-color: #e74c3c;
    color: white;
}
@media (max-width: 600px) {
    .container {
        padding: 20px;
    }
    .button-group {
        flex-direction: column;
    }
    .button-group button {
        margin-bottom: 10px;
    }
}