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

html {
    font-size: 62.5%;
}

body {
    font-family: 'Raleway', sans-serif;
    font-size: 1.6rem;
}

.hero-shadow {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, .7);
    z-index: -1;
}

.additional-text {
    font-size: 1.8rem;
}

.top-hero {
    position: relative;
    height: 20rem;
    background-size: cover;
    z-index: 0;
}

.top-hero-text {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
    font-size: 3.6rem;
    text-transform: uppercase;
}

/* -------------- */
/*    nawigacja   */
/* -------------- */
nav {
    font-size: 2rem;
    text-transform: uppercase;
}

.navbar-toggler {
    font-size: 3rem;
}

.navbar-brand {
    font-size: 2.4rem;
    font-weight: bold;
    text-transform: none;
}

/* -------------- */
/*     header     */
/* -------------- */

header {
    font-size: 2rem;
}

.carousel-item {
    position: relative;
    height: 400px;
    background-position: center;
    background-size: cover;
    z-index: 0;
}

.carousel-img-one {
    background-image: url('../img/main-carousel-1.jpg');
}

.carousel-img-two {
    background-image: url('../img/main-carousel-2.jpg');
}

.carousel-img-three {
    background-image: url('../img/main-carousel-3.jpg');
}

/* -------------- */
/*      home      */
/* -------------- */
.home-boxes {
    padding: 5em 0;
}

.home-box i {
    font-size: 4rem;
}

.home-box h3 {
    font-size: 2.6rem;
}

/* -------------- */

.home-passion {
    position: relative;
    height: 350px;
    background-image: url('../img/home-passion.jpg');
    background-position: center;
    background-size: cover;
    z-index: 0;
}

/* -------------- */
.home-brand h3 {
    font-size: 3rem;
    font-weight: bold;
}

/* -------------- */
/*     aboutus    */
/* -------------- */

.aboutus-hero {
    background-image: url('../img/about/about-hero.jpg');
    background-position: bottom;
}

/* -------------- */

.aboutus-top .display-3 {
    text-transform: uppercase;
}

/* -------------- */

.aboutus-info {
    background-color: rgba(0, 0, 0, 0.03);
}

.aboutus-info .container {
    padding: 2em .5em;
}

.aboutus-text {
    padding: 1.8em;
}

.aboutus-text h3 {
    margin-bottom: .5em;
    font-size: 2.6rem;
    text-transform: uppercase;
    font-weight: bold;
    text-decoration: underline #007BFF;
}

.aboutus-text-right {
    text-align: right;
}

.aboutus-img {
    height: 300px;
    background-image: url('../img/about/about-info.jpg');
    background-position: center;
    background-size: cover;
}

/* -------------- */

.aboutus-bottom i {
    font-size: 3rem;
}

.aboutus-bottom h3 {
    font-size: 2.2rem;
    font-weight: bold;
}

/* -------------- */
/*     usługi     */
/* -------------- */

.service-hero {
    background-image: url('../img/service/library2.jpg');
    background-position: 0 75%;
}

/* -------------- */

.service-hero-box {
    position: relative;
    height: 300px;
    background-size: cover;
    z-index: 0;
}

.service-hero-box p {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3rem;
    text-transform: uppercase;
}

.service-pricing .box-one {
    background-image: url('../img/service/library.jpg');
}
.service-pricing .box-two {
    background-image: url('../img/service/hildeberg.jpg');
}
.service-pricing .box-three {
    background-image: url('../img/service/mama.jpg');
}
.service-pricing .box-four {
    background-image: url('../img/service/books.jpg');
}

.service-pricing .card-header {
    font-size: 2rem;
    cursor: pointer;
}

.service-pricing h3 {
    font-weight: bold;
}

.service-pricing .btn {
    font-size: 1.6rem;
    text-transform: uppercase;
}


/* -------------- */
/*     footer     */
/* -------------- */
footer {
    font-size: 1.6rem;
}


@media (min-width:992px) {
    .aboutus-info .container {
        padding: 0;
    }

    .aboutus-shadow {
        box-shadow: inset 0 5px 10px -5px rgba(0, 0, 0, .4);
    }

    .aboutus-text {
        padding: 5em 0;
        transform: skew(-15deg);
    }

    .aboutus-text-left {
        padding-right: 2em;
        text-align: right;
    }

    .aboutus-text-right {
        padding-left: 2em;
        text-align: left;
    }

    .aboutus-img {
        height: auto;
        transform: skew(-15deg);
    }
}

@media (min-width:1400px) {
    .carousel-item {
        height: 600px;
    }

    .carousel-img-one {
        background-image: url('../img/main-carousel-1-hq.jpg');
    }

    .carousel-img-two {
        background-image: url('../img/main-carousel-2-hq.jpg');
    }

    .carousel-img-three {
        background-image: url('../img/main-carousel-3-hq.jpg');
    }
}