* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html{
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body{
    position: relative;
    font-family: 'Montserrat', sans-serif;
    font-size: 1.6rem;
    color: black;
}

.hero-shadow{
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

header{
    position: relative;
    height: 50rem;
    background-image: url("./img/business-962316_1920.jpg");
    background-position: center;
    background-size: cover;
    z-index: 0
    ;
}

/* .scroll-fix::before{
    display:block;
    margin-top: -3rem;
    height: 3rem;
    content: '';
} */

/* nawigacja */
nav, .stopka{
    background-color: black;
}

nav .navbar-nav {
    font-style: 1rem;
    text-transform: uppercase;
}

.nav-link{
    margin: 0 10px;
}

.navbar-brand{
    font-size: 2.2rem;
    font-weight: bold;
    text-transform: uppercase;
}

.about-boxes h4{
    font-size: 3rem;
    font-weight: bolder;
}

.o-firmie{
    font-size: 2rem;
}

.o-firmie h4, .uslugi h4, .kontakt h4{
    font-size: 3rem;
    font-weight: bolder;
    text-align: center;
    padding: 5rem 0 0 0;
    text-transform: uppercase;
}

.o-firmie p{
    padding: 2rem;
    text-align: justify;
}

.uslugi h5{
    font-size: 2rem;
    font-weight: bolder;
    text-align: left;
    padding: 2rem 0 0 0;
}

.kontakt{
    font-weight: bold;
    margin-bottom: 3rem;
}

iframe{
    width:2fr;
    height: 50vh;
}

a{
    color: black;
}