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

html {
    scroll-behavior: smooth;
}

main{
    overflow: hidden;
}

a,button {
    cursor: pointer;
}

nav {
    position: absolute;
    top: 100px;
    right: 100px;
    width: 250px;
}

.navigation {
    position: fixed;
    right: -500px;
    width: 350px;
    height: 100%;
    background-color: white;
    transition: .5s;
    z-index: 1;
}

.navigation ul li {
    color: white;
    text-align: center;
    list-style-type: none;
    font-size: 1.5em;
    padding: 15px;
}

.navigation ul li a {
    font-family: 'Lato', sans-serif;
    color: #00010d;
    text-decoration: none;
    font-size: 20px;
    text-transform: uppercase;
    font-weight: 600;
    display: inline-block;
    padding-bottom: 0.25rem;
    position: relative;
    transition: color 0.3s ease-out;
}

a:hover {
    lighting-color: #00010d;
}

a::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 4px;
    border-radius: 4px;
    background-color: #2db85d;
    transition: width 0.25s ease-out;
}

a:hover::before {
    width: 100%;
}


.hamburger, .bar {
    position: fixed;
}

.hamburger {
    display: block;
    top: 5%;
    left: 90%;
    width: 30px;
    height: 30px;
    transform: translateY(-50%);
    border: 0;
    background: 0 0;
}

.bar {
    top: 3px;
    background: #00010d;
    width: 100%;
    height: 4px;
    transition: all .3s ease-in, color .3s ease-in;
}

.bar :hover {
    background: #2db85d;
}

#middle {
    top: 11px;
}

#bottom {
    top: 19px;
}

.navigation.active{
    right: 0;
}

.hamburger.open #top {
    transform: rotate(45deg) translate(6px, 5px);
}

.hamburger.open #middle {
    background-color: transparent;
}

.hamburger.open #bottom {
    transform: rotate(-45deg) translate(6px, -5px);
}

#rubrik {
    position:static;
    height: 100vh;
    width: 100%;
    background-image: url(../bilder/bild1-telefon.png);
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

#rubrik-text {
    font-family: 'Poppins', sans-serif;
    display: flex;
    padding-top: 15vh;
    padding-left: 18%;
    flex-wrap: wrap;
    width: 500px;
}

#rubrik h1 {
    font-size: 42px;
    color: #00010d;
}

.rubrik-span {
    color: #00010d;
}

span {
    color: #2db85d;
}

#rubrik p {
    font-size: 29px;
}

#project {
    background-color: white;
    position:static;
    background-image: url(../bilder/bild2-telefon.png);
    height: 1000px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    top: 100vh;
    width: 100%;
    padding: 10vh 5vw;
}

#project-text {
    font-family: 'Poppins', sans-serif;
    padding-top: 20%;
    padding-left: 55%;
}

#project-text h2 {
    font-size: 32px;
    text-align: right;
    padding-bottom: 30px;
}

#project-text p {
    font-family: 'Poppins', sans-serif;
    font-size: 15px;
    text-align: right;
}

#who {
    background-color: green;
    position: static;
    width: 100%;
    background-image: url(../bilder/bild3-telefon.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 10vh 10vw;
}

#who h4 {
    font-family: 'Poppins', sans-serif;
}

#who-grid {
    width: 100%;
    padding: 40px 0;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-template-rows: 60% 10% 10% 10% 10%;
    column-gap: 1.5vw;
    row-gap: 3.5vh;
    grid-template-areas: "who-text who-text who-text who-text"
                         " person1-bild . person1-text ."
                         " person2-bild . person2-text ."
                         " person3-bild . person3-text ."
                         " person4-bild . person4-text .";
}

#who-text {
    grid-area: who-text;
}

#who-text h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 42px;
}

#who-text p {
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
}

#person1-picture {
    grid-area: person1-bild;
}

#person1-text {
    grid-area: person1-text;
}

#person2-picture {
    grid-area: person2-bild;
}

#person2-text {
    grid-area: person2-text;
}

#person3-picture {
    grid-area: person3-bild;
}

#person3-text {
    grid-area: person3-text;
}

#person4-picture {
    grid-area: person4-bild;
}

#person4-text {
    grid-area: person4-text;
}

.person-picture img {
    width: 150px;
    height: 150px;
    border-radius: 100%;
}

.persons-text h4 {
    font-family: 'Poppins', sans-serif;
    font-size: 16px;
    font-weight: 100;
    padding: 20px;
    align-items: center;
}

#learn-more {
    position: static;
    background-image: url(../bilder/bild4-telefon.png);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 10vh 5vw;
}

.card {
    padding: 30px;
    background-color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.35);
    border-radius: 20px;
    display: flex;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    margin: 40px;
}

.card:hover{
    border-color: #2db85d;
    box-shadow: none;
}

.card-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
}

.card-text h1 {
    font-family: 'Poppins', sans-serif;
    margin-bottom: 20px;
    color: #2db85d;
    font-size: 28px;
    font-weight: bold;
    text-align: center;
}

.card-text p {
    font-family: 'Poppins', sans-serif;
    color: #00010d;
    font-size: 20px;
    margin-bottom: 20px;
}

.card-text a {
    font-family: 'Lato', sans-serif;
    color: #00010d;
    text-decoration: none;
    font-size: 16px;
    text-transform: uppercase;
    font-weight: 600;
    display: inline-block;
    padding-bottom: 0.25rem;
    position: relative;
    transition: color 0.3s ease-out;
}

.card-text i {
    color: #2db85d;
    font-size: 8rem;
    width: 100%;
    text-align: center;
    margin-bottom: 10px;
}

@media only screen and (min-width: 768px) {
    
    .bar {
        background: #2db85d;
    }

    #rubrik {
        background-image: url(../bilder/bild1-tablet.png);
        background-position: left;
    }

    #rubrik-text{
        width: 650px;
    }

    #rubrik-text p {
        font-size: 30;
    }

    .rubrik-span {
        color: #2db85d;
    }

    #project {
        background-image: url(../bilder/bild2-tablet.png);
        height: 750px;
    }

    #project-text {
        padding-top: 10%;
        padding-left: 55%;
    }

    #who {
        background-image: url(../bilder/bild3-tablet.png);
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
    }

    #who-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
    grid-template-rows: 75% 5% 10% 10%;
    column-gap: 3.5vw;
    row-gap: 1.5vh;
    grid-template-areas: "who-text who-text who-text who-text who-text who-text who-text"
                         ". . . . . . ."
                         ". person1-bild person1-text . person2-bild person2-text ."
                         ". person3-bild person3-text . person4-bild person4-text.";
    }

    #learn-more {
        background-image: url(../bilder/bild4-tablet.png);
    }
} 

@media only screen and (min-width: 1307px) {

    .navigation ul li {
        padding: 40px;
    }

    #rubrik {
        background-image: url(../bilder/bild1-pc.png);
    }

    #rubrik-text{
        width: 747px;
    }

    #rubrik-text p {
        font-size: 32;
    }

    #project {
        background-image: url(../bilder/bild2-pc.png);
    }

    #who {
        background-image: url(../bilder/bild3-pc.png);
        background-size: cover;
        background-position: center;
        background-repeat: no-repeat;
        padding: 10vh 8vw;
    }

    #who-grid {
        display: grid;
        grid-template-columns: 40% 4% 10% 8% 10% 8%;
        grid-template-rows: 50% 50%;
        column-gap: 3.5vw;
        row-gap: 1.5vh;
        grid-template-areas: "who-text . person1-bild person1-text person2-bild person2-text"
                             "who-text . person3-bild person3-text person4-bild person4-text"
    }

    #learn-more {
        background-image: url(../bilder/bild4-pc.png);
        padding: 10vh 5vw;
    }

    #columns {
        display: flex;
        justify-content: space-evenly;
    }
}