@layer framie {
  html {
    scroll-behavior: smooth;
    font-family: monospace;
  }

  body {
    background-color: #222;
    padding: 10px;
    border-radius: 30px;
    position: relative;
  }

  *,
  *::before,
  *::after {
    box-sizing: border-box;
    color: #fff;
    font-weight: bold;
    text-align: center;
    margin: 0;
    padding: 0;
    border: none;
    outline: none;
    scrollbar-width: none; /* remove the scrollbar from all */
  }

  img {
    max-width: 100%;
    display: block;
    margin: 0 auto;
  }

  .wrapper-data-title {
    --main-col: #8abaf5;
    --main-bg-col: #000;
    border: 3px solid var(--main-col);
    background-color: var(--main-bg-col);
    padding: 30px;
    margin-top: 30px;
    border-radius: 20px;
    position: relative;
  }

  .progress-cont {
    position: fixed;
    top: 0;
    left: 0;
    padding: 0;
    margin: 0;
    width: 100%;
    height: 7px;
    background-color: #eee5;
    z-index: 100;

    & > #progress {
      top: 0;
      left: 0;
      padding: 0;
      margin: 0;
      width: 0%;
      height: 7px;
      background-color: #5561f5;
      transition: width 300ms ease-out;
    }
  }
  .progress {
    background-color: #5561f5;
    position: fixed;
    inset: 0;
    width: 100%;
    height: 5px;
    z-index: 100;
    scale: 0 1;
    --scale-up: 1 1;
    transform-origin: left;
    animation: scale-up linear 1ms;
    animation-timeline: scroll(nearest);
  }

  .page-title {
    margin-block-start: 20px;
    font-weight: bold;
    font-size: 30px;
    border: 5px solid;
    padding: 3px 10px;
    letter-spacing: 2px;
    text-align: center;
    width: fit-content;
    margin: 30px auto 50px;

    &:hover {
      color: yellow;
      cursor: pointer;
    }
  }

  input[type="text"] {
    --input-bg-color: #ddd;
    --input-color: #4955f7;
    width: 100%;
    background-color: var(--input-bg-color);
    color: var(--input-color);
    border-radius: 20px;
    margin: 10px;
    align-self: center;
    padding: 15px;
    text-align: left;

    &:is(:focus, :focus-visible) {
      background-color: #fff;
    }
  }

  .chkbox-wrapper {
    --chk-bg-color: #ddd;
    --chk-color: #4955f7;
    --transition: 200ms;
    display: flex;
    gap: 10px;

    & > label {
      white-space: nowrap;
      font-size: 1.25rem;
      font-weight: bold;
    }

    & > input[type="checkbox"] {
      appearance: none;
      border-radius: 7px;
      background-color: var(--chk-bg-color);
      width: 1rem;
      aspect-ratio: 1;
      margin: 0;
      padding: 0;
      transition: var(--transition);
      cursor: pointer;
      position: relative;

      &:focus {
        outline: none;
      }

      &:hover,
      &:focus-visible {
        outline: 3px solid var(--chk-color);
        background-color: var(--chk-bg-color);
      }

      &::before {
        content: "";
        background-color: var(--chk-color);
        transform: scale(0);
        transition: transform var(--transition) ease-in-out;
        position: absolute;
        top: 50%;
        left: 50%;
        translate: -50% -50%;
        width: 90%;
        aspect-ratio: 1;
        border-radius: 0.5em;
        border-radius: inherit;
      }

      &:checked::before {
        transform: scale(1);
      }
    }
  }

  .test-area {
    --main-col: #00a2ff;
    width: 100%;
    align-items: normal;
    gap: 50px;
    position: relative;
    background-color: #111;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 15px;
    border-width: 7px;
    margin-top: 50px;

    & .area-controls {
      position: absolute;
      display: flex;
      justify-content: center;
      align-items: center;
      gap: 15px;
      top: -25px;
      right: 20px;

      /* mode-switch (on/off) */
      & > .switch {
        display: grid;
        grid: none / 70% 1fr;
        align-items: center;
        justify-content: center;
        background-color: var(--main-col);
        width: 140px;
        aspect-ratio: 1 / 0.3;
        border-radius: 30% / 100%;

        & > .key {
          --d: 25px;
          --off-bg-col: #f00;
          --on-bg-col: #40ff2f;
          --key-bg-col: #eee;
          width: var(--d);
          aspect-ratio: 1 / 0.3;
          border-radius: 20% / 70%;
          background-color: var(--off-bg-col);
          position: relative;
          transition: background-color 500ms;
          cursor: pointer;

          &::before {
            content: "";
            border-radius: 50%;
            background-color: var(--key-bg-col);
            width: calc(var(--d) * 0.7);
            height: calc(var(--d) * 0.7);
            position: absolute;
            top: 50%;
            left: 20%;
            translate: -50% -50%;
            transition: left 500ms;
          }

          &.on {
            background-color: var(--on-bg-col);

            &::before {
              left: 80%;
            }
          }
        }
      }

      /* animation controls */
      & > .animation-control.chkbox-wrapper {
        background-color: var(--main-col);
        padding: 10px 17px;
        border-radius: 20% / 70%;

        & > input[type="checkbox"] {
          width: 20px;
        }

        & > :is(#playState, #iterationPause, #alternate) {
          border-radius: 50%;
        }

        & > :is(#playState, #iterationPause) {
          &::before {
            border-radius: inherit;
            background-color: #47c900;
          }
        }

        & > #alternate {
          &::before {
            border-radius: inherit;
            background-color: #b500c9;
          }
        }
      }
    }

    & .guide {
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 20px;

      & > #showGuide {
        --brdr-col: red;
        width: 50px;
        aspect-ratio: 1;
        cursor: pointer;
        border-radius: 50%;
        transition: background-color 300ms, transform 500ms;
        position: relative;
        outline: none;

        &::before {
          content: "";
          box-sizing: border-box;
          border: 4px solid;
          border-color: transparent var(--brdr-col) var(--brdr-col) transparent;
          width: 20px;
          aspect-ratio: 1;
          position: absolute;
          top: 42%;
          left: 50%;
          transform: translate(-50%, -50%) rotateZ(45deg);
          transition: border-color 500ms;
        }

        &:hover,
        &:focus-visible {
          background-color: #444;
        }

        &.open {
          transform: rotateZ(180deg);

          &::before {
            --brdr-col: #2fffac;
          }
        }
      }

      & > #information {
        width: 100%;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 20px;
        overflow: hidden;
        border-radius: 15px;
        transform-origin: top;
        transition: transform 300ms linear;
        transform: rotateX(90deg);
        display: none;

        & > #options {
          display: flex;
          flex-wrap: wrap;
          justify-content: center;
          gap: 10px;

          & > .option {
            padding: 10px;
            border-radius: 15px;
            background-color: #222;
            display: flex;
            place-content: center;
            font-size: 15px;
            transition: 300ms background-color;

            & > input[type="radio"] {
              width: 20px;
              height: 20px;
            }

            &:hover {
              background-color: #444;
            }
          }
        }

        & > #syntax {
          background-color: #222;
          padding: 20px;
          width: 100%;
          text-align: left;
          font-size: calc(0.3rem + 1vw);
          border-radius: 20px;
        }
      }
    }
  }

  @keyframes scale-up {
    to {
      scale: var(--scale-up);
    }
  }
}