.button.btn-cta {
    transition: background-color 0.9s ease-in-out, transform 0.3s ease;
    transition: all 0.9s ease;
    background: transparent;
    border: 2px solid #6699EE;
    user-select: none;
    color: #5794ED;
    border-radius: 10px;
    margin-top: 4px;
}

*+.buttons {
    margin-top: 20px;
}

a.button,
.button-dark {
    display: inline-block;
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    padding: 12px;
    border-radius: 4px;
    min-width: 200px;
    background-color: #fff;
    color: #000;
    transition: background-color .3s ease, transform .3s ease, box-shadow .3s ease;
    margin-top: 4x;
}

a.button-dark {
    background-color: #000;
    color: #fff;
}

a.button-dark:hover,
a.button-dark:focus {
    background-color: rgba(0, 0, 0, 0.8);
    transform: translateY(-2px);
}

a.button:hover,
a.button:focus {
    background-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-2px);
}

a.button-outline {
    background-color: transparent;
    border: 1px solid #fff;
    color: #fff;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.5);
}

a.button-outline:hover,
a.button-outline:focus {
    background-color: transparent;
    box-shadow: inset 0 0 0 1px #fff;
}

.button.btn-cta:hover {
    background: #6ca2f1;
    color: #fff;
    box-shadow: 0 1px 30px #4282EBdd;
    transform: scale(1.1);
    text-decoration: none;
    border: 2px solid #4282EB;
}

.btn-cta i,
.button i {
    font-size: 1.3rem;
    margin-right: 8px;
}

/* buttons */
.buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

/*Feature work*/
.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.portfolio-item img {
    width: 100%;
    height: auto;
    transition: transform 0.4s ease;
}

.portfolio-item:hover img {
    transform: scale(1.05);
    filter: brightness(75%);
    filter: blur(2px);
}

.portfolio-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    width: 100%;
    padding: 15px;
    opacity: 0;
    transition: 0.4s ease-in-out;
}

.portfolio-item:hover .portfolio-caption {
    opacity: 1;
    font-size: 40px;
}

/*Feature */
.feature-body {
    margin-bottom: 30px
}

.feature-icon {
    margin-bottom: 10px
}

.text-justify {
    text-align: justify;
}

@media (min-width: 200px) and (max-width: 490px) {
    #obra1 {
        margin-right: -20px;
        margin-top: -90px;
        display: none;
    }

    .text-justify {
        text-align: inherit;
    }
}

@media (min-width: 200px) and (max-width: 300px) {
   
    #sticky-btn span {
        /* Se usar um ícone (ex: Font Awesome) */
        border-radius: 50%;
        display: none;
        overflow: hidden;
    }
}