/* 
0 - 600px    :     Phone
600 - 900px  :    Tablet Portrait
900 - 1200px :    Tablet Landscape
1200 - 1800px:    Where this style applies
1800px +     :    Big Desktop

$breakpoint argument choices
- phone
- tab-port
- tab-land
- big-desktop

ORDER : Base + typograpy > general layout + grid > page layout > componenets
1em = 16px

*/
@import url("https://fonts.googleapis.com/css2?family=Roboto:wght@400;700&display=swap");
*,
*::after,
*::before {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: inherit; }

html {
  font-size: 62.5%; }
  @media only screen and (max-width: 37.5em) {
    html {
      font-size: 50%; } }

.section-one {
  font-family: "Roboto", sans-serif;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-image: linear-gradient(135deg, #81ffef 10%, #f067b4 100%); }

.section-one[data-theme="light"] {
  --color-1: #ebf5fc;
  --color-2: #000508;
  --color-3: #3180b1;
  --box-shadow-1: -0.2rem -0.2rem 0.5rem rgba(255, 255, 255, 1),
        0.3rem 0.3rem 0.5rem rgba(0, 0, 0, 0.1);
  --box-shadow-2: inset -0.2rem -0.2rem 0.5rem rgba(255, 255, 255, 1),
        inset 0.3rem 0.3rem 0.5rem rgba(0, 0, 0, 0.1); }

.section-one[data-theme="dark"] {
  --color-1: #131419;
  --color-2: #c7c7c7;
  --color-3: lawngreen;
  --box-shadow-1: 2px 2px 5px rgba(0, 0, 0, 0.5),
        -3px -3px 7px rgba(255, 255, 255, 0.05);
  --box-shadow-2: inset 2px 2px 5px rgba(0, 0, 0, 0.5),
        inset -3px -3px 7px rgba(255, 255, 255, 0.05); }

.keypad {
  background-color: var(--color-1);
  padding: 2rem;
  border-radius: 5rem;
  box-shadow: var(--box-shadow-1); }
  .keypad__theme {
    padding: 0 2rem;
    display: flex;
    justify-content: flex-end; }
    .keypad__theme__checkbox {
      appearance: none; }
    .keypad__theme__checkbox:checked ~ .keypad__theme__toggle::after {
      left: 2rem; }
    .keypad__theme__toggle {
      cursor: pointer;
      display: inline-block;
      height: 2rem;
      width: 4rem;
      box-shadow: var(--box-shadow-2);
      background-color: var(--color-1);
      border-radius: 1rem;
      position: relative; }
      .keypad__theme__toggle::after {
        content: "";
        position: absolute;
        height: 1rem;
        width: 1rem;
        box-shadow: var(--box-shadow-1);
        background-color: var(--color-1);
        border-radius: 50%;
        top: 0.5rem;
        left: 1rem; }
  .keypad__display {
    padding: 2rem; }
    .keypad__display__text {
      outline: none;
      border: none;
      padding: 1rem;
      box-shadow: var(--box-shadow-2);
      background-color: var(--color-1);
      width: 100%;
      resize: none;
      font-size: 1.6rem;
      color: var(--color-2);
      letter-spacing: 1px; }
  .keypad__keys {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem; }
    .keypad__keys--upper {
      text-transform: uppercase; }
    .keypad__keys__row {
      display: flex;
      gap: 0.8rem;
      justify-content: center; }
    .keypad__keys__key, .keypad__keys__key--func {
      height: 4rem;
      width: 4rem;
      display: flex;
      justify-content: center;
      align-items: center;
      font-size: 1.8rem;
      color: var(--color-2);
      box-shadow: var(--box-shadow-1);
      cursor: pointer;
      user-select: none; }
      .keypad__keys__key:active, .keypad__keys__key--func:active {
        box-shadow: var(--box-shadow-2);
        color: var(--color-3); }
    .keypad__keys__key--space {
      width: 20rem; }
    .keypad__keys__key--shift, .keypad__keys__key--del {
      width: 6rem; }
    .keypad__keys__key--shift-checkbox {
      appearance: none; }
    .keypad__keys__key--shift-checkbox:checked + .keypad__keys__key--shift {
      box-shadow: var(--box-shadow-2);
      color: var(--color-3); }