body {
    margin: 0;
    padding: 0;
    background: url('opcion.jpg') no-repeat center center fixed;
    background-size: cover;
    font-family: Arial, sans-serif;
}

/* Formulario */
.login-container {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 20px;
    width: 80%;
    max-width: 600px;
    margin: 40px auto;
    box-shadow: 0px 0px 10px rgba(0,0,0,0.2);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 20px;
}

.login-container textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-family: monospace;
    resize: vertical;
}

.login-container button {
    width: 100%;
    padding: 12px;
    background: #1c7591;
    border: none;
    border-radius: 6px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: 0.3s;
}

.login-container button:hover {
    background: #145a6e;
}

/* Resultados */
.resultado {
    margin: 20px auto;
    padding: 20px;
    width: 80%;
    max-width: 600px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.resultado h3 {
    text-align: center;
    margin-bottom: 15px;
}

.resultado table {
    width: 100%;
    border-collapse: collapse;
}

.resultado th, .resultado td {
    padding: 12px;
    text-align: center;
    border-bottom: 1px solid #ddd;
}

.resultado th {
    background: #1c7591;
    color: white;
}