* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

body {
    background-color: #f4f7f6;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.contenedor {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

h2 {
    margin-bottom: 20px;
    color: #333333;
    text-align: center;
}

.grupo-control {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #666666;
    font-size: 14px;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #cccccc;
    border-radius: 4px;
    font-size: 16px;
}

input:focus {
    border-color: #4caf50;
    outline: none;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #0050fc;
    border: none;
    border-radius: 4px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    font-weight: bold;
}

button:hover {
    background-color: #0033a1;
}

.enlace {
    display: block;
    text-align: center;
    margin-top: 15px;
    color: #0066cc;
    text-decoration: none;
    font-size: 14px;
}

.enlace:hover {
    text-decoration: underline;
}