* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  --background-color: yellow;
  --color: black;
  --active-btn: yellowgreen;
}

body {
  background-color: var(--background-color);
  font-family: Verdana, Geneva, Tahoma, sans-serif;
  font-size: 1em;
}

container {
  width: 100%;
  height: 100vh;
}

dialog {
  background-color: var(--color);
  width: 350px;
  max-width: 80%;
  height: 200px;
  position: absolute;
  top: calc(50vh - 100px);
  left: calc(50vw - 175px);
  text-align: center;
  > form {
    margin-top: 20px;
    padding: 25px;
    color: var(--background-color);

    > p {
      > a {
        color: var(--background-color);
      }
    }
    > div {
      text-align: center;

      > #cancel {
        margin-top: 40px;
        padding: 10px 20px;
        border: none;
        background-color: var(--background-color);
        cursor: pointer;
      }

      > #cancel:hover {
        background-color: var(--active-btn);
      }
    }
  }
}

nav {
  background-color: rgba(0, 0, 0, 0.1);
  padding: 10px 20px;
  height: 40px;
  display: flex;
  justify-content: space-between;

  > h1 {
    font-size: 1.1em;
    letter-spacing: 0.1em;
  }

  > button {
    height: 25px;
    margin: 0 20px;
    padding: 0 10px;
    background-color: transparent;
    border: 1px black solid;
    font-size: 1em;
    cursor: pointer;
  }

  > button:hover {
    background-color: var(--active-btn);
  }
}

.wrapper {
  margin-top: 50px;
  display: flex;
  flex-direction: column;
  align-items: center;

  > h2 {
    font-size: 1.6em;
    margin-bottom: 20px;

    > span {
      font-size: 0.6em;
    }
  }

  > .btn-field {
    > button {
      font-size: 1.5em;
      font-weight: bold;
      padding: 5px 20px;
      background-color: transparent;
      border: 1px black solid;
      font-size: 1em;
      cursor: pointer;
    }

    > button:hover {
      background-color: var(--active-btn);
    }

    > #add {
      border: 2px black solid;
      background-color: var(--active-btn);
      border-radius: 5px 0 0 5px;
    }

    > #division {
      border-radius: 0 5px 5px 0;
    }
  }

  > span {
    font-size: 0.7em;
    margin-bottom: 20px;
  }

  > .active-task {
    font-size: 6em;
  }

  > .result {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    > span {
      text-align: center;
      font-size: 0.7em;
    }

    > .result-emoji {
      > input {
        background-color: var(--background-color);
        width: 200px;
        font-size: 6em;
        text-align: center;
        border: 1px black solid;
        border-radius: 10px;
        margin-bottom: 30px;
      }

      > #emoji {
        width: 100px;
        height: 100px;
        background-color: var(--background-color);
        margin-left: 20px;
        padding-top: 20px;
      }
    }
  }

  > .ctrl-btn > button {
    height: 25px;
    margin: 0 20px;
    padding: 0 20px;
    background-color: transparent;
    border: 1px black solid;
    font-size: 1em;
    cursor: pointer;
  }

  > .ctrl-btn > button:hover {
    background-color: var(--active-btn);
  }
}