body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f7f8;
    margin: 0;
    padding: 0;
}

.container {
    width: 100%;
    max-width: 500px;
    margin: 50px auto;
    background: #fff;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
}

form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: #444;
}

form input,
form select {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border 0.3s;
}

form input:focus,
form select:focus {
    border-color: #007bff;
    outline: none;
}

button {
    width: 100%;
    background-color: #007bff;
    color: white;
    padding: 12px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #0056b3;
}

.error {
    color: red;
    text-align: center;
    margin-bottom: 15px;
}