:root{
    --black: #000000;
    --darkGray: #222222;
    --gray: #888888;
    --blue: #002b36;
    --lightBlue: #c2e4ed;
    --white: #ffffff;
}

*{
    cursor: default;
    padding: 0;
    margin: 0;
    text-decoration: none;
    scroll-behavior: smooth;

}

body{
    font-family: "Inter", sans-serif;
    font-weight: 300;
    font-size: 14px;
}

.bg-black{
    background: var(--black);
}
.bg-blue{
    background: var(--blue);
}
.bg-white{
    background: var(--white);
}

button, input[type=submit]{
    height: 40px;
    font-size: 14px;
    padding: 0 15px;
    color: var(--white);
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

/* navbar */

nav{
    width: 100%;
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: center;
    background: var(--black);
    color: var(--white);
    position: fixed;
    border-bottom: 1px solid var(--darkGray);
}
nav>:not(ul){
    width: 140px;
    margin: 0 20px;
}
nav .logo{
    font-weight: 500;
    cursor: pointer;
    text-transform: capitalize;
    font-family: "Inria Serif", serif;
    font-size: 30px;
    color: var(--white);
}
nav button{
    width: 110px;
    margin: 0 35px;
    background: none;
    border: 1px solid ;
    transition: 0.2s;
}
nav button:hover{
    color: var(--black);
    background: var(--white);
}
nav ul li{
    list-style-type: none;
    display: inline-block;
    padding: 10px;
}
nav ul li a{
    text-transform: capitalize;
    cursor: pointer;
    color: inherit;
    font-family: sans-serif;
    font-size: 15px;
}
nav ul li a:hover{
    text-decoration: underline;
}

@media only screen and (max-width: 600px) {
    nav{
        flex-direction: column;
        height: 120px;
        padding: 10px 0;
    }
    .banner{
        padding-top: 140px;
    }
}

/* Banner */
.banner{
    padding-top: 64px;
    height: 500px;
    gap: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--white);
    background: var(--black);
}
.banner button{
    background: #e61e2b;
    font-weight: 700;

}
.banner h1{
    font-weight: 700;
    letter-spacing: -2.6px;
    font-family: "Inria Serif", serif;
    text-transform: capitalize;
    font-size: 50px;
}
.banner p{
    font-size: 20px;
    color: var(--gray);
}

/* Boek */
.boek{
    padding: 60px 40px;
    background: var(--blue);
    display: flex;
    flex-wrap: wrap-reverse;
    gap: 80px;
    justify-content: center;
}
.boek .description{
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 20px;
    width: 335px;
}

.boek h1{
    color: var(--white);
    font-weight: 700;
    font-size: 40px;
}

.boek p{
    font-weight: 500;
    color: var(--gray);
    line-height: 1.5em;
    font-size: 16px;
}

.boek .image{
    display: flex;
    align-items: center;
}

.boek img{
    border-radius: 20px;
}

.boek .group{
    display: flex;
    gap: 15px;
}

.boek .group :first-child{
    background: var(--darkGray);
    color: var(--white);
}
.boek .group :last-child{
    background: var(--lightBlue);
    color: var(--darkGray);
}

.boek button{
    box-shadow: 0 .7065919983928324px .7065919983928324px -.625px #00000026, 0 1.8065619053231785px 1.8065619053231785px -1.25px #00000025, 0 3.6217592146567767px 3.6217592146567767px -1.875px #00000023, 0 6.8655999097303715px 6.8655999097303715px -2.5px #00000020, 0 13.646761411524492px 13.646761411524492px -3.125px #0000001b, 0 30px 30px -3.75px #0000000d;;
}

/* Auteurs */
.auteurs{
    display: flex;
    padding: 60px 40px;
    gap: 80px;
    background: var(--black);
    color: var(--white);
    align-items: start;
    flex-wrap: wrap;
    justify-content: center;
}

.auteurs>*{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 240px;
    gap: 10px;
}
.auteurs>*>img{
    border-radius: 50%;
}
/* Bestellen */

.bestellen{
    display: flex;
    flex-wrap: wrap;
    color: var(--white);
    align-items: start;
    flex-wrap: wrap;
    justify-content: center;
}

.bestellen .form{
    width: 50%;
    padding: 60px 0;
    background: var(--blue);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.bestellen .info{
    width: 50%;
    padding: 60px 0;
    background: var(--white);
    color: var(--black);
    gap: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    
}
.bestellen .info p{
    width: 225px;

    
}
.bestellen .form input{
    width: 100%;
    padding: 12px 20px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    text-transform: capitalize;
  }

  .bestellen .form{
    gap: 20px;
  }
  .bestellen h1{
    font-size: 35px;

  }
  .bestellen form{
    width: 350px;
  }
  .bestellen .form .group{
    gap: 12px;
    display: flex;
  }
  .bestellen input[type=submit]{
    background: var(--lightBlue);
    color: var(--darkGray);

}

@media only screen and (max-width: 900px) {
    .bestellen{
        flex-direction: column;
    }
    .bestellen .form,
    .bestellen .info{
        width: 100%;
    }
}