html {
  height: 100%;
  box-sizing: border-box;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

body {
  margin: 0;
  height: 100vh;
  padding: 0.5rem;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 0.5rem;
  overflow: hidden;
}

body > header,
#preview-panel > article > header,
#preview-panel section {
  display: grid;
  gap: 0.25rem;
}

h1,
h2,
h3,
p {
  margin: 0;
}

main {
  display: grid;
  grid-template-columns: 40% 1fr;
  gap: 1rem;
  align-items: stretch;
  min-height: 0;
}

aside,
#preview-panel {
  min-width: 0;
  min-height: 0;
}

aside {
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 0.35rem;
  scrollbar-gutter: stable;
}

#plinth-form {
  display: grid;
  gap: 0.25rem;
  align-content: start;
}

fieldset {
  margin: 0;
  padding: 0.2rem 0.45rem 0.3rem;
}

legend {
  padding: 0 0.1rem;
}

label {
  line-height: 1.2;
}

small {
  font-size: 0.75rem;
  line-height: 1.15;
}

#preview-panel {
  overflow: hidden;
}

#preview-panel > article {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  gap: 0.5rem;
  height: 100%;
  min-height: 0;
}

#preview-panel figure {
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 0.25rem;
  min-height: 0;
}

.js-model-preview {
  width: 100%;
  height: 100%;
  min-height: 14rem;
}

.js-model-preview canvas {
  display: block;
  width: 100%;
  height: 100%;
}

figure {
  margin: 0;
}

dl {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.2rem 0.6rem;
}

dt {
  font-weight: 600;
  margin-top: 0;
}

dd {
  margin: 0;
}

fieldset input[type="number"],
fieldset input[type="text"],
fieldset button {
  width: 100%;
}

label input[type="radio"],
label input[type="checkbox"] {
  width: auto;
  display: inline;
}

@media (max-width: 900px) {
  body {
    height: auto;
    min-height: 100dvh;
    padding: 0.4rem;
    gap: 0.4rem;
    overflow: auto;
  }

  main {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    align-content: start;
  }

  aside {
    overflow: visible;
    padding-right: 0;
  }

  #preview-panel {
    overflow: visible;
  }

  #preview-panel > article {
    height: auto;
    gap: 0.4rem;
  }

  .js-model-preview {
    height: min(40vh, 18rem);
    min-height: 12rem;
  }

  dl {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  dd {
    margin-bottom: 0.35rem;
  }
}