material-final.scss

* {
  box-sizing: border-box;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
}

html,
body {
  height: 100%;
  margin: 0;
  overflow: auto;
  padding: 0;
  position: relative;
}

html {
  font-size: 8px;
}

body {
  align-items: center;
  color: #333;
  display: grid;
  grid-template-columns: 1fr;
  font-size: 2rem;
  justify-items: center;
}

input,
button {
  color: inherit;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.card {
  box-shadow: 0 0.25rem 0.75rem 0.25rem #0003;
  border-radius: 1rem;

  header {
    border-bottom: 1px solid #eee;
    margin: 2rem 2rem 4rem 2rem;
    padding: 0 0 2rem 0;

    h1 {
      font-size: 2.5rem;
      font-weight: 500;
      margin: 0 0 1rem 0;
      padding: 0;
    }

    h2 {
      font-size: 2rem;
      font-weight: normal;
      margin: 0;
      padding: 0;
    }
  }

  footer {
    border-top: 1px solid #eee;
    display: flex;
    gap: 2rem;
    justify-content: flex-end;
    margin: 4rem 0 0 0;
    padding: 2rem;
  }
}

.password-criteria {
  background-color: #eee;
  border-radius: 0.5rem;
  padding: 1rem;
  margin: 0 2rem;

  p {
    margin: 0 0 1rem 0;
  }

  ul {
    margin: 0 3rem;
    padding: 0;

    li {
      line-height: 3rem;
    }
  }
}

/* ************************************************
MATERIAL FORM STYLS
************************************************ */
$primary: #0486ff;
$negative: tomato;

form.material {
  .form-content {
    display: grid;
    gap: 4rem;
    grid-template-columns: 1fr;
    grid-auto-flow: row;
    width: 64rem;
    max-width: 100%;
  }

  .field {
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-flow: row;
    overflow: visible;
    margin: 0 2rem;
    position: relative;

    label {
      color: #999;
      position: absolute;
      top: 2rem;
      transition: all ease 300ms;
    }

    input {
      background-image:
        linear-gradient(to bottom, transparent calc(100% - 0.25rem), $primary 0.25rem),
        linear-gradient(to bottom, transparent calc(100% - 0.125rem), #ccc 0.125rem);
      background-position: center bottom;
      background-repeat: no-repeat;
      background-size: 0, 100%;
      border: none;
      outline: none;
      padding: 2.5rem 0 1.5rem 0;
      transition: all ease 300ms;

      &:focus {
        background-size: 100%, 100%;
      }

      &:not(:placeholder-shown) {
        background-image:
          linear-gradient(to bottom, transparent calc(100% - 0.25rem), $primary 0.25rem),
          linear-gradient(to bottom, transparent calc(100% - 0.125rem), #999 0.125rem);
      }

      &:required + label::after {
        color: $negative;
        content: ' *';
      }

      &:not(:placeholder-shown) + label,
      &:focus + label {
        font-size: 1.5rem;
        top: 0;
      }

      &:focus + label {
        color: $primary;
      }
    }

    .hint {
      color: #999;
      font-size: 1.75rem;
      font-weight: 500;
      margin: 1rem 0;
    }
  }
}

button.material {
  background: #eee;
  background-image: radial-gradient(circle at center, #0003 50%, transparent 50%);
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 0;
  border: none;
  border-radius: 0.5rem;
  box-shadow: 0 0.125rem 0.325rem 0.125rem #0003;
  font-weight: 500;
  margin: 0;
  outline: none;
  padding: 1rem 2rem;
  transition: all ease 300ms;
  text-transform: uppercase;

  &:focus {
    background-size: 225%;
  }

  &.flat {
    background-color: transparent;
    box-shadow: none;

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

  &.primary {
    background-color: $primary;
    background-image: radial-gradient(circle at center, #fff3 50%, transparent 50%);
    color: #eee;

    &:focus,
    &:hover {
      box-shadow: 0 0.125rem 0.325rem 0.125rem #0009;
    }
  }
}