body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0a0f2c, #1e2b5c);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}
.login-box, .main-screen {
    background: #121b3d;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 0 15px #000;
    width: 90%;
    max-width: 400px;
    text-align: center;
}
input[type="password"] {
    padding: 10px;
    font-size: 20px;
    width: 80%;
    margin-bottom: 15px;
    border-radius: 8px;
    border: none;
    text-align: center;
}
button {
    padding: 12px;
    font-size: 16px;
    width: 100%;
    margin-bottom: 10px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    background: #1e90ff;
    color: white;
}
button.secundario {
    background: transparent;
    border: 1px solid #ccc;
}
.botones {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.botones button {
    width: 45%;
    margin: 10px;
    background: #1e90ff;
}
.oculto {
    display: none;
}


/* Mejoras responsivas para móviles */
@media (max-width: 600px) {
    .botones button {
        width: 100% !important;
        font-size: 18px !important;
    }

    .login-box, .main-screen {
        width: 95% !important;
        padding: 20px !important;
    }

    input[type="password"] {
        width: 90% !important;
        font-size: 18px !important;
    }

    button {
        font-size: 18px !important;
        padding: 12px !important;
    }
}


/* Botones grandes y cuadrados en modo celular */

@media (max-width: 600px) {
    .botones {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 10px !important;
        justify-items: center;
    }

    .botones button {
        width: 90% !important;
        aspect-ratio: 1/1 !important;
        font-size: 16px !important;
        padding: 10px !important;
    }

    .main-screen {
        width: 100% !important;
        padding: 10px !important;
    }

    h1 {
        font-size: 22px !important;
    }
}

.codigo-mascara {
    background: white;
    color: black;
    padding: 10px;
    font-size: 24px;
    border-radius: 8px;
    width: 120px;
    margin: 0 auto 15px;
    text-align: center;
}

.codigo-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}
.codigo-container input[type="password"] {
    opacity: 0;
    position: absolute;
    pointer-events: none;
}
.codigo-mascara {
    background: white;
    color: black;
    padding: 10px;
    font-size: 24px;
    border-radius: 8px;
    width: 120px;
    text-align: center;
}
.btn-ojito {
    font-size: 20px;
    background: none;
    border: none;
    cursor: pointer;
}
@media (max-width: 600px) {
    .botones button {
        width: 90% !important;
        height: auto;
        aspect-ratio: auto !important;
        padding: 10px !important;
        font-size: 15px !important;
    }
}