@layer component {
  theme-select {
    --icon-size: 12px;

    position: relative;
    display: inline-block;
    color: rgba(var(--color-text));
    cursor: pointer;
    user-select: none;
  }

  theme-select::before {
    position: absolute;
    inset: 0;
    pointer-events: none;
    content: "";
    border-radius: var(--input-border-radius-outset);
    box-shadow: var(--input-shadow-offset-x) var(--input-shadow-offset-y)
      var(--input-shadow-blur)
      rgba(var(--color-text), var(--input-shadow-opacity));
  }

  theme-select::after {
    position: absolute;
    inset: var(--input-border-thickness);
    z-index: var(--z-index-hover);
    pointer-events: none;
    content: "";
    border-radius: var(--input-border-radius);
    box-shadow: 0 0 0 var(--input-border-thickness)
      rgba(var(--color-text), var(--input-border-opacity));
    transition: box-shadow 0.2s;
  }
  theme-select:hover::after {
    box-shadow: 0 0 0 calc(var(--input-border-thickness) + 1px)
      rgba(var(--color-text), var(--input-border-opacity));
  }

  theme-select > select {
    position: relative;
    z-index: var(--z-index-hover);
    width: 100%;
    height: calc(0.5em * 2 + 1.625em);
    padding: 0.5em calc(2em + var(--icon-size)) 0.5em 0.75em;
    font-size: inherit;
    color: inherit;
    appearance: none;
    background-color: rgb(var(--color-background));
    border: none;
    border-radius: var(--input-border-radius);
    outline: none;
  }
  theme-select .theme-select__arrow {
    position: absolute;
    inset-block-start: calc((0.5em * 2 + 1.625em - 10px) / 2);
    inset-inline-end: 1em;
    z-index: var(--z-index-hover);
    width: var(--icon-size);
    color: inherit;
    pointer-events: none;
    user-select: none;
    transition: transform 0.2s;
  }

  theme-select .theme-select__main {
    position: absolute;
    inset-inline-start: 0;
    z-index: var(--z-index-dropdown);
    display: none;
    width: max-content;
    min-width: 100%;
    font-size: 0.875em;
    cursor: default;
  }

  @media (max-width: 959px) {
    theme-select .theme-select__main {
      position: fixed;
      inset-block: auto 0;
      inset-inline-start: 0;
      z-index: var(--z-index-popover);
      width: 100%;
      height: 100%;
      font-size: 1em;
      content: "";
      background-color: rgb(var(--color-mask), 0.4);
    }
  }

  theme-select .theme-select__content {
    padding: 0.5em 0;
    overflow: hidden;
    background-color: rgb(var(--color-background));
    animation-duration: 0.2s;
    animation-timing-function: ease;
  }

  @media (max-width: 959px) {
    theme-select .theme-select__content {
      --select-animation-name: animation-slide-in-bottom;

      position: absolute;
      inset-block-end: 0;
      inset-inline-start: 0;
      width: 100%;
      height: fit-content;
      padding: 8px 0;
      border: none;
    }
  }

  @media (min-width: 960px) {
    theme-select .theme-select__main,
    theme-select .theme-select__main[data-position="bottom"] {
      inset-block: calc(100% + 10px) auto;
    }

    theme-select .theme-select__main[data-position="top"] {
      inset-block: auto calc(100% + 10px);
    }
  }

  theme-select .theme-select__list {
    display: block;
    max-height: 60vh;
    overflow: hidden;
    overflow-y: auto;
  }

  theme-select .theme-select__check-icon {
    position: absolute;
    inset-block-start: 50%;
    inset-inline-end: var(--padding-inline);
    display: none;
    width: var(--icon-size);
    transform: translateY(-50%);
  }

  theme-select .theme-select__option {
    --padding-inline: 0.75em;
    --padding-block: 0.5em;

    position: relative;
    display: block;
    padding: var(--padding-block) var(--padding-inline);
    cursor: pointer;
    transition: background-color 0.2s;
  }

  @media (max-width: 959px) {
    theme-select .theme-select__option {
      --padding-inline: 20px;
      --padding-block: 8px;
    }
  }

  theme-select .theme-select__option:hover {
    background-color: rgb(0 0 0 / 3%);
  }

  theme-select .theme-select__option[selected] {
    padding-inline-end: calc(
      var(--icon-size) + var(--padding-inline) + var(--padding-block)
    );
    background-color: rgb(0 0 0 / 5%);
  }

  theme-select .theme-select__option[selected] .theme-select__check-icon {
    display: block;
  }

  theme-select .theme-select__option[disabled] {
    cursor: not-allowed;
    background: none;
    opacity: 0.3;
  }
  theme-select[open] .theme-select__arrow {
    transform: rotate(180deg);
  }

  theme-select[open] .theme-select__main {
    display: block;
  }
}