.body {
  padding: 0;
  margin: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(to top, beige 0%, black 100%);
  background-attachment: fixed;
  overflow: hidden;
}

.calculator {
  width: 300px;
  min-width: 300px; /*Shrinks on lesser resolutions*/
  box-sizing: border-box;
  padding: 20px;
  background: black;
  border-radius: 20px;
  color: white;
}

.calculator_screen {
  background: gray;
  width: 100%;
  display: block;
  box-sizing: border-box;
  border: 0;
  text-align: right;
  font-size: 40px;
  padding: 10px;
  border-radius: 5px;
}

.button {
  font-family: inherit; /*Inputs don't inherit by default*/
  font-size: 30px;
  border-radius: 7px;
  border: 0;
  padding: 0;
  display: flex; /*Not necessary for now*/
  justify-content: center;
  align-items: center;
  outline: none;
}

.calculator_keyboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.calculator_heading {
  font-family: "Slabo 27px", serif;
}

.calculator_top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calculator_title {
  margin: 0;
  font-size: 25px;
}

.calculator_sun-battery {
  width: 100px;
  height: 30px;
  border-radius: 3px;
  background-color: brown;
}

.calculator_screen-container {
  margin: 20px 0;
  border-radius: 5px; /*For later*/
}

.button_type_plus {
  grid-row: span 2;
}

.calculator {
  padding: 20px 25px 45px;
  border-top-left-radius: 100% 30px;
  border-top-right-radius: 100% 30px;
  border-bottom-left-radius: 100% 60px;
  border-bottom-right-radius: 100% 60px;
}

.calculator {
  background: radial-gradient(
    ellipse farthest-corner at 20% 65%,
    #5e6479,
    #161213
  );
}

.calculator_sun-battery {
  width: 107px;
  height: 30px;
  border-radius: 3px;
  background-color: #3d2115;
  background-image: repeating-linear-gradient(
    to right,
    transparent,
    transparent 26px,
    rgba(255, 255, 255, 0.1) 26px,
    rgba(255, 255, 255, 0.1) 27px
  );
}

.calculator_sun-battery {
  box-shadow: 0 -3px 5px -3px rgba(255, 255, 255, 0.2),
    5px 0 3px -5px rgba(255, 255, 255, 0.8), 0 2px 5px -2px rgba(0, 0, 0, 0.5),
    -3px 0 3px -1px rgb(0, 0, 0, 0.8), inset 0 -5px 3px -3px rgba(0, 0, 0, 0.5),
    inset 5px 0 5px -2px rgba(0, 0, 0, 0.8);
}

.calculator_sun-battery-container {
  border-radius: 3px; /* To fix border overflow */
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.calculator_screen {
  background-image: linear-gradient(-155deg, #44443a 0%, #656f66 100%);
  box-shadow: 0 -4px 4px -3px rgba(255, 255, 255, 0.3),
    5px 0 3px -5px rgba(255, 255, 255, 0.8), 0 5px 5px -3px rgba(0, 0, 0, 0.5),
    -3px 0 3px -1px rgba(0, 0, 0, 0.8), inset 0 -5px 3px -3px rgba(0, 0, 0, 0.5),
    inset 5px 0 5px -2px rgba(0, 0, 0, 0.8);
}

.calculator {
  box-shadow: 0 0 5px 0 rgba(0, 0, 0, 0.7), 0 0 20px 0 rgba(0, 0, 0, 0.5),
    0 0 25px 0 rgba(0, 0, 0, 0.3), 10px 0 4px 10px rgba(0, 0, 0, 0.3),
    inset 0 0px 3px 0 rgba(0, 0, 0, 0.7), inset 0 0 10px 0 rgba(0, 0, 0, 0.5),
    inset 0 -25px 5px 0 rgba(0, 0, 0, 0.2),
    inset 0 -5px 10px 0 rgba(255, 255, 255, 0.3);
}

.calculator_keyboard {
  display: grid;
  gap: 15px;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 40px;
}

.button {
  background: linear-gradient(25deg, #525a65, #3b424c);
  color: rgba(255, 255, 255, 0.8);
  box-shadow: inset 2px 1px 1px 0 rgba(255, 255, 255, 2),
    inset -3px 2px 5px 0 rgba(0, 0, 0, 0.2), 4px 1px 1px 0 rgba(0, 0, 0, 0.5),
    -1px 3px 1px 0 rgba(0, 0, 0, 0.5), 4px -3px 1px 0 rgba(0, 0, 0, 0.5),
    -1px -1px 5px 0 rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.button:active {
  box-shadow: inset 2px 1px 1px 0 rgba(255, 255, 255, 2),
    inset -3px 2px 5px 0 rgba(0, 0, 0, 0.2), 3px 1px 1px 0 rgba(0, 0, 0, 0.5),
    -1px -1px 1px 0 rgba(0, 0, 0, 0.5), 3px -1px 1px 0 rgba(0, 0, 0, 0.5),
    -1px -1px 5px 0 rgba(0, 0, 0, 0.5), 4px 0 1px 0 rgba(255, 255, 255, 3);

  transform: translate (1px, -1px);
}

.clear-btn {
  background: #7ab0cb;
}

footer {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #202327f3;
  padding: 10px;
  color: #eee;
  font-size: 14px;
  position: fixed;
  bottom: 0;
  width: 100%;
}

footer p {
  margin: 0;
}

footer a {
  color: aqua;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}