body, html {
    margin: 0;
    padding-top: 20px;
    padding-bottom: 20px;
    background-image: linear-gradient(to bottom right, #4FACFE, #00F2FE);
    background-size: cover;
    background-repeat: no-repeat;
}

.container {
    max-width: 600px;
}

.user-info {
    background: #f8f9fa;
    border: 1px solid #e1e4e8;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
}

.user-info h2 {
    font-size: 1.5rem;
    color: #333;
}

.user-info p {
    font-size: 1rem;
    margin: 5px 0;
}

.user-info i {
    margin-right: 8px;
    color: #007bff;
}

.btn-primary {
    background-color: #0056b3;
    border: none;
}

.titulo-convencion {
    font-size: 2rem;
}

.categoria-container {
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    padding: 20px;
    margin-bottom: 1.5rem;
}

.titulo-categoria {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    cursor: pointer;
    color: #007bff;
    text-align: center;
}

.descripcion-categoria {
    font-size: 1rem;
    color: #6c757d;
    margin-bottom: 1rem;
    text-align: center;
}

.lista-servicios {
    display: none;
}

.card-body {
        padding: 0rem !important;
        align-items: center;
        justify-content: center;
        display: flex;
    }

.card-service {
    cursor: pointer;
    transition: all .3s ease;
    border: 1px solid #dee2e6;
    border-radius: 0.25rem;
    padding: 1rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
    background: #fff;
}

.card-service.active {
    border-color: #28a745;
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.25);
}

.card-service .card-title {
    font-size: 0.9rem;
}

.card-service .form-check-input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.card-container {
    padding: 15px;
}

.button-group {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.button-group .btn {
    flex: 1;
    margin: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    max-width: calc(50% - 10px);
}

.row {
    display: flex;
    flex-wrap: wrap;
}

.col-6.col-md-4.mb-3 {
    display: flex;
    flex: 0 0 50%;
    max-width: 50%;
}

@media only screen and (min-width: 768px) {
    .col-6.col-md-4.mb-3 {
        flex: 0 0 33.33333%;
        max-width: 33.33333%;
    }

    .card-service .card-title {
        font-size: 1rem;
    }
}

@media only screen and (max-width: 600px) {
    .card-service {
        margin-bottom: 10px;
    }

    .card-container {
        padding: 5px;
    }

    .btn {
        padding: 10px 20px;
        margin-bottom: 10px;
        font-size: 1rem;
    }

    .button-group {
        flex-wrap: wrap;
    }

    .button-group .btn {
        flex: 1 0 100%;
        margin: 5px 0;
    }

}