header{
    color: var(--text-color-nav);
    width:100%;
    min-height:auto;
    text-align: center;
    background-size:cover;
    background-position:center;
    background-image: url(../assets/imgs/header.jpg);
    padding-bottom: 1rem;
}

h1, h2, h3{
    font-weight: bold;
    text-align: center;
}

hr{
    border-color: rgb(187, 4, 4);
    opacity: 1;
    border-width: 5px;
    max-width: 250px;
    margin: 1rem auto;
}

ul {
    list-style: none;
    padding-left: 0rem;
    font-size: 1.2rem;
}

.btn-primary{
    background-color: rgb(187, 4, 4);
    --bs-btn-active-bg: rgb(187, 4, 4);

    border: none;
}

.btn-primary:hover{
    background-color: red;
}

.container{
    width: 100%;
}

.container-fluid{
    width: 80%;
}

/* Laptops and bigger */
@media screen and (min-width:768px) {
    .container{
        width: 60%;
    }
}

.box{
    display: flex;
    width: 40%;
    margin: 0 auto;
}

.profile{
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.services{
    padding-top: 1rem;
    padding-bottom: 1rem;
    color: var(--text-color-nav);
    background-color: rgba(83, 83, 83, 0.5);
}

.invest{
    padding-top: 1rem;
    padding-bottom: 2rem;
}

.portfolio-box{
    position: relative; 
    display: block;
    margin: 0 auto;
    padding: 0;
}

.portfolio-box .portfolio-box-caption{
    display: block;
    color: #fff;    
    background: rgba(204, 59, 59, 0.7);
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 100%;
    text-align: center;
    opacity: 0;
    transition: all .35s;
}

.portfolio-box .portfolio-box-caption .portfolio-box-caption-content{
    width: 100%;
    text-align: center;
    position: absolute;
    top: 50%; 
    transform: translateY(-50%);
}

.portfolio-box.hasHover .portfolio-box-caption,
.portfolio-box:hover .portfolio-box-caption{
    opacity:1
}

.portfolio-box a img {
    object-fit: contain;
    width: 100%;
    height: 100%;
} 

.project-category{
    margin: 1rem 1rem;
    font-size: var(--font-size-project-category);
}

.project-name{
    margin: 1rem 1rem;
    font-size: var(--font-size-project-name);
}

.kontakt{
    padding-top: 1rem;
    padding-bottom: 1rem;
    color: var(--text-color-nav);
    background-color: rgba(83, 83, 83, 0.5);
}