* {
  box-sizing: border-box;
}

:root {
  --gap: 20px;
}

body {
  font-family: sans-serif;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

.content {
  max-width: 800px;
  margin-inline: auto;
  margin-block-start: clamp(var(--gap), 10vw, 120px);
  margin-block-end: 100px;
  padding-inline: var(--gap);
}

.controls {
  background: #f0f0f0;
  border-top: 1px solid #ccc;
  padding: var(--gap);
  margin-block-start: auto;

  display: flex;
  flex-direction: column;
  gap: var(--gap);
  container-type: inline-size;

  @media (min-width: 600px) {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
  }
}

.controls-inner {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  flex-wrap: wrap;

  @container (min-width: 560px) {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--gap);
  }

  @container (min-width: 900px) {
    grid-template-columns: repeat(3, 1fr);
  }

  @container (min-width: 1400px) {
    grid-template-columns: repeat(4, 1fr);
  }
}

details {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 5px;
  background-color: #f9f9f9;
  align-self: self-start;

  summary {
    font-weight: bold;
    margin-block: calc(var(--gap) / 2);
    cursor: pointer;
  }

  &:nth-of-type(4) {
    @container ( 900px < width < 1400px ) {
      grid-column: 1 / 4;
    }
  }
}