:root {
    --col-dark: #1C1C1C;
    --col-light: #E3E3E3;
}

@font-face {
    font-family: 'Lato';
    src: url('../fonts/Lato-Regular.ttf');
    src: url('../fonts/Lato-Regular.ttf') format('truetype');
}

html, body {
    margin: 0;
}

body {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    width: 100vw;
    height: 100vh;

    overflow: hidden;

    background: var(--col-dark);
}

section {
    color: var(--col-light);
    font-family: Lato;
}

a {
    color: var(--col-light);
    text-decoration: none;
}

a[rel="author"] {
    justify-self: end;
}
a[rel="author"]::before {
    content: " - ";
}

main {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    gap: 1rem;
}

section {
    display: grid;
    place-content: center;
    place-items: center;
    margin: 0 4rem;
}

section * {
    margin: .2rem 0;
}

.btn {
    cursor: pointer;
}

.btn:focus {
    outline: none;
}

.btn.cbtn {
    display: grid;
    place-content: center;
    place-items: center;
    position: relative;
    
    padding: 2.2rem;

    width: 0;
    height: 0;

    border: none;
    background: none;
    font: unset;

    border-radius: 100vw;
}
.btn.cbtn > i {
    display: grid;
    place-items: center;
}
.btn.cbtn > i::after {
    content: "";
    display: grid;
    place-content: center;
    position: absolute;

    z-index: 1000;

    overflow: hidden;

    padding: 0rem;

    background-color: var(--col-light);
    color: var(--col-dark);

    width: 0;
    height: 0;

    border-radius: 100vw;
    transition: padding .2s, background-color .2s, color .2s;
}
.btn.cbtn:hover > i::after,
.btn.cbtn.dragover > i::after {
    padding: var(--padding);
}

@keyframes cbtn-click {
    from {
        padding: 0rem;
        opacity: 1;
    }
    to {
        padding: calc(var(--padding) * 1.3);
        opacity: 0;
    }
}
.btn.cbtn > .click {
    position: absolute;
    padding: 0rem;
    opacity: 1;
    z-index: 10000;

    border-radius: 100vw;
    width: 0;
    height: 0;

    /*box-shadow: inset 0 0 2px #FFF;*/
    background: #DDD8;
    border: 4px solid #fff;

    animation: cbtn-click .2s;
}

.btn.cbtn {
    --padding: 5vmin;
    padding: var(--padding);
    font-size: 3vmin;
}

.btn.cbtn.medium {
    --padding: 5vmin;
    padding: var(--padding);
    font-size: 3vmin;
}

.btn.cbtn.big {
    --padding: 30vmin;
    padding: var(--padding);
    font-size: 8vmin;
}

.btn.cbtn.overlap {
    margin: -1vmin;
}

footer {
    display: grid;
    grid-auto-columns: min-content;
    grid-auto-flow: column;
    padding: 3vmin;
}

#input {
    display: none;
}

#button_text {
    font-style: normal;
}

#button_text::before, #button_text::after {
    content: "Drag & Drop Yuzu Executable here";
    text-align: center;
}

.dragover {
    --col-dark: #1C1C1C;
    --col-light: #82DD90;
}