body {
    font-family: Arial, sans-serif;
    background: #f0f2f5;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 600px;
    margin: 40px auto;
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #333;
}

form label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
    color: #555;
}

form input[type="text"],
form input[type="date"],
form input[type="email"],
form input[type="tel"] {
    width: 100%;
    padding: 8px 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
    font-size: 1rem;
}

form input[readonly] {
    background: #e9ecef;
    cursor: not-allowed;
}

fieldset {
    margin-top: 20px;
    border: 1px solid #ccc;
    padding: 15px;
    border-radius: 6px;
}

legend {
    font-weight: bold;
    padding: 0 5px;
}

button {
    margin-top: 25px;
    width: 100%;
    background: #007bff;
    border: none;
    color: white;
    font-size: 1.1rem;
    padding: 12px 0;
    border-radius: 7px;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background: #0056b3;
}

.error-message {
    color: red;
    font-size: 0.9rem;
    margin-top: 3px;
}

.form-message {
    margin-top: 20px;
    font-weight: bold;
    text-align: center;
}