body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
header {
    background: black;
    position: sticky;
    top: 0;
}
nav {
    display: flex;
    gap: 1rem;
    justify-content: center
}
nav ul {
    display: flex;
}
nav ul li {
    list-style: none;
}
main {
    display: flex;
    flex: 1;
    padding: 1rem;
}
section {
    align-items: center;
    display: flex;
    flex: 1;
    flex-wrap: wrap;
    justify-content: center;
}
section h1 {
    color: gray;
    text-align: center;
}
figure {
    /* border: 1px dashed gray; */
    display: flex;
    flex-direction: column;
    gap: 1rem;
    height: 720px;
    margin: 1rem;
    padding: 1rem;
    width: 512px;
}
figure canvas {
    flex: 1;
    max-height: 100%;
    max-width: 100%;
    min-height: 0;
    object-fit: contain;
    cursor: grab;
    touch-action: none;
}
figure canvas:active {
    cursor: grabbing;
}
figure menu {
    display: flex;
    justify-content: center;
}
figure fieldset {
    display: flex;
    flex-direction: column;
    justify-content: center;
}
figure fieldset section {
    display: flex;
    justify-content: center;
    gap: 1rem;
}
.drop-hover {
    border: 0.5rem dashed gray;
}
button, [type="button"] {
    min-width: 2rem;
}