:root {
    --default: rgb(148, 171, 126);
    --dark: rgb(59, 79, 52);
    --light: rgb(228, 232, 222);
    --accent: rgb(177, 161, 152);
    --brown: rgb(100, 81, 78);

    --radius-lg: 20px;
    --radius-md: 10px;
    --radius-pill: 100px;

    --spacing-sm: 10px;
    --spacing-md: 20px;
    --spacing-lg: 32px;

    --max-width: 1200px;
}

*{
  box-sizing: border-box;
}

html,
body {
    scroll-behavior: smooth;
    background-image: url("../images/bg.png");
    margin: 0;
    height: 100%;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    margin: 0;
    min-height: 100vh;
}

body{

    display: flex;
    flex-direction: column;
    min-height: 100vh;

}

nav{
    position: sticky;
    top: 0px;
    display: flex;
    vertical-align: top;
    gap: 10px;
    background-color: white;
    padding: 15px;
    padding-left: 30px;
}

.tab{
    background-color: var(--default);
    width: 130px;
    text-align: center;
    padding: 8px;
    border-radius: 100px;
}
.tab:hover{
    background-color: var(--accent);
}

.selected{
    background-color: var(--dark);
}

a{
    color: white;
    text-transform: capitalize;
}

a:hover{
    color: var(--brown);
    text-transform: capitalize;
}

.title{
    text-align: center;
    padding-top: 170px;
    font-size: 35px;
}

body{
    font-family: Helvetica, Arial, sans-serif;
    color: var(--brown);
}

main{
    padding: 32px 16px;
    margin: 10px auto;
    max-width: 800px;
    border-radius: 20px;
}

section{
    padding: 10px 15px;
    margin: 10px;
    border-radius: 10px;
    background: white;
}

.col{
    display: inline-block;
    width: calc(33.33% - 20px);
    vertical-align: top;
    min-height: 140px;
}


footer{
    padding: 20px;
    margin-top: auto;
}

.floating{
    width: 200px;
    float: left;
    padding: 20px;
}

.center{
    text-align: center;
}

.rectangle1{
    background-image: linear-gradient(var(--default),white);
    height: 800px;
    width: auto;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
    margin: 0;
    min-height: 100vh;
    padding-top: 200px;
    padding-left: 20px;
    padding-right: 20px;
    flex: 1;
}
img{
    width: 100%;
    max-width: 300px;
    height: auto;

}

.wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr;
    gap: 10px;
}

.col_span4{
    grid-column: span 4;
}

.col_span2{
    grid-column: span 2;
}

.row_span4{
    grid-row: span 4;
}

.row_span2{
    grid-row: span 2;
}

.full {
    grid-column: 1/-1;
}
.twocol {
    grid-column: span 3;
}

.threecol {
    grid-column: span 2;
}

@media (max-width: 768px) {

    nav {
        justify-content: center;
    }

    .wrapper {
        grid-template-columns: repeat(2, 1fr);
    }

    .threecol,
    .twocol,
    .col_span2,
    .col_span4 {
        grid-column: span 2;
    }

    .row_span4,
    .row_span2 {
        grid-row: auto;
    }

}


@media (max-width: 520px) {

    nav {
        flex-direction: column;
        align-items: center;
    }

    .tab {
        max-width: 250px;
    }

    .wrapper {
        grid-template-columns: 1fr;
    }

    .full,
    .threecol,
    .twocol,
    .col_span2,
    .col_span4 {
        grid-column: 1 / -1;
    }
}