body {
    font-family: Arial, sans-serif;
    background-color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 400px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="radio"] {
    width: calc(100% - 20px);
    padding: 10px;
    margin-bottom: 20px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
}

input[type="radio"] {
    width: auto;
}

input.invalid {
    border-color: red;
    background-color: #ffcccc;
}

input.valid {
    border-color: green;
    background-color: #ccffcc;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #28a745;
    border: none;
    border-radius: 4px;
    color: white;
    font-size: 16px;
    cursor: pointer;
    margin-top: 10px;
}

button:disabled {
    background-color: #cccccc;
}

.mensaje {
    margin-top: 20px;
    padding: 20px;
    border-radius: 4px;
    text-align: center;
}

.mensaje.exito {
    background-color: green;
    color: white;
}

.mensaje.error {
    background-color: red;
    color: white;
}

.num-socios {
    text-align: center;
    margin-top: 20px;
}

.popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #28a745;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    color: white;
    text-align: center;
    z-index: 1000;
}

.popup button {
    margin-top: 10px;
    padding: 10px 20px;
    background-color: #ffffff;
    color: #28a745;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}