body {
    font-family: 'Vazirmatn', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    background-color: #f4f4f4;
    color: #333;
    direction: rtl;
}
.container {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    text-align: center;
    width: 90%;
    max-width: 600px;
}
h1 {
    color: #2c3e50;
    margin-bottom: 20px;
}
textarea {
    font-family: 'Vazirmatn', Tahoma, Geneva, Verdana, sans-serif;
    width: 100%;
    min-height: 150px;
    margin-top: 20px;
    margin-bottom: 20px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1.1em;
    resize: vertical;
    box-sizing: border-box;
}
button {
    font-family: 'Vazirmatn', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #3498db;
    color: white;
    border: none;
    padding: 12px 25px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 1.1em;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin: 5px;
}
button:hover {
    background-color: #2980b9;
}
button:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
}
.status {
    margin-top: 15px;
    font-size: 0.9em;
    color: #7f8c8d;
}
.error {
    color: #e74c3c;
    font-weight: bold;
}