:root {
    --clr-primary: #393A45;
    --clr-primary-light: #393A45;
    --clr-primary-dark: transparant;

    --clr-green: #34b8a8;
    --clr-orange: #e08c2b;
    --clr-grey: #505050;

    --font-family: "Roboto", sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    outline: none;
}
a,
img,
button,
input,
label,
select,
span,
i {
    display: inline-block;
}
a {
    text-decoration: none;
    color: inherit;
}
ul {
    list-style: none;
}
img {
    width: 100%;
    height: 100%;
}
html {
    font-size: 75%;
}
body {
    min-height: 100vh;
    font-family: var(--font-family);
    background-color: var(--clr-primary-dark);
    color: #fff;
}

h3.heading {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.btn {
    text-decoration: none;
    text-transform: uppercase;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1em;
    font-weight: 700;
    padding: 1rem;
    transition: 0.25s;
    color: rgb(243, 243, 243);
}

.btn-grey {
    background-color: var(--clr-grey);
    border: 2px solid var(--clr-grey);
}
.btn-orange {
    background-color: var(--clr-orange);
    border: 2px solid var(--clr-orange);
}
.btn-green {
    background-color: var(--clr-green);
    border: 2px solid var(--clr-green);
}

.btn-grey:is(:hover, :focus, :focus-within) {
    background-color: #000;
    color: var(--clr-grey);
}
.btn-orange:is(:hover, :focus, :focus-within) {
    background-color: #000;
    color: var(--clr-orange);
}
.btn-green:is(:hover, :focus, :focus-within) {
    background-color: #000;
    color: var(--clr-green);
}

.scroller {
    --size: 10rem;
    overflow-y: scroll;
    margin: auto 0;
    height: calc(100% - 6rem);
    /* margin-top: calc(var(--size) / 2); */
}

.scroller::-webkit-scrollbar {
    display: none;
}

/* Hide scrollbar for IE, Edge and Firefox */
.scroller {
    -ms-overflow-style: none; /* IE and Edge */
    scrollbar-width: none; /* Firefox */
}