body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f2f4f7;
    margin: 0;
    padding: 0;
}

.container {
    width: 500px;
    margin: 100px auto;
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

h2 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
}

form {
    display: flex;
    flex-direction: column;
}

input[type="text"],
input[type="email"],
input[type="number"],
select {
    margin-bottom: 15px;
    padding: 12px 15px;
    border: 1px solid #dcdcdc;
    border-radius: 6px;
    font-size: 16px;
    background-color: #fafafa;
    transition: border-color 0.3s, background-color 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
select:focus {
    border-color: #007bff;
    background-color: #ffffff;
    outline: none;
}

input[type="submit"] {
    padding: 12px;
    background-color: #007bff;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s, transform 0.3s;
}

input[type="submit"]:hover {
    background-color: #0056b3;
    transform: scale(1.02);
}

input[type="submit"]:active {
    background-color: #004494;
}

label {
    font-size: 16px;
    margin-bottom: 5px;
    font-weight: 500;
}

.error {
    color: #d9534f;
    text-align: center;
    margin-top: 15px;
    font-size: 14px;
}