.calculator {
  width: 300px;
  min-width: 300px;
  box-sizing: border-box;
  padding: 20px 25px 45px;
  background: radial-gradient(ellipse farthest-corner at 20% 65%, #525864, #130f0e);
  color: rgba(255, 255, 255, .8);
  font-family: 'Overpass Mono', monospace;
  border-top-left-radius: 100% 30px;
  border-top-right-radius: 100% 30px;
  border-bottom-left-radius: 100% 60px;
  border-bottom-right-radius: 100% 60px;
  box-shadow: 0 0 5px 0 rgba(0, 0, 0, .7), 0 0 20px 0 rgba(0, 0, 0, .5), 0 0 25px 0 rgba(0, 0, 0, .3), 10px 0 4px 10px rgba(0, 0, 0, .3), inset 0 0 3px 0 rgba(0, 0, 0, .7), inset 0 0 10px 0 rgba(0, 0, 0, .5), inset 0 -25px 5px 0 rgba(0, 0, 0, .2), inset 0 -5px 10px 0 rgba(255, 255, 255, .3);
}

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

.calculator__heading {
  font-family: 'Slabo 27px', serif;
  text-shadow: 0 0 2px rgba(255, 255, 255, .2);
}

.calculator__title {
  margin: 0 0 -4px;
  font-size: 25px;
}

.calculator__subtitle {
  margin: 0;
  font-size: 18px;
}

.calculator__sun-battery-container {
  border-radius: 3px;
  border-right: 1px solid rgba(255, 255, 255, .2);
}

.calculator__sun-battery {
  width: 107px;
  height: 30px;
  border-radius: 3px;
  background-color: #3d2115;
  box-shadow: 0 -3px 5px -3px rgba(255, 255, 255, .2), 5px 0 3px -5px rgba(255, 255, 255, .8), 0 2px 5px -2px rgba(0, 0, 0, .5), -3px 0 3px -1px rgba(0, 0, 0, .8), inset 0 -5px 3px -3px rgba(0, 0, 0, .5), inset 5px 0 5px -2px rgba(0, 0, 0, .8);
  background-image: repeating-linear-gradient(to right, transparent, transparent 26px, rgba(255, 255, 255, .1) 26px, rgba(255, 255, 255, .1) 27px);
}

.calculator__screen-container {
  position: relative;
  margin: 20px 0;
  border-radius: 5px;
  border-right: 1px solid rgba(255, 255, 255, .2);
}

.calculator__screen {
  background-image: linear-gradient(-155deg, #44443a 0%, #656f66 100%);
  width: 100%;
  display: block;
  box-sizing: border-box;
  border: 0;
  text-align: right;
  font-size: 40px;
  padding: 10px;
  font-family: 'Share Tech Mono', monospace;
  letter-spacing: -2px;
  border-radius: 5px;
  box-shadow: 0 -4px 4px -3px rgba(255, 255, 255, .3), 5px 0 3px -5px rgba(255, 255, 255, .8), 0 5px 5px -3px rgba(0, 0, 0, .5), -3px 0 3px -1px rgba(0, 0, 0, .8), inset 0 -5px 3px -4px rgba(0, 0, 0, .5), inset 5px 0 5px -2px rgba(0, 0, 0, .8);
}

.calculator__screen:disabled {
  color: #000;
}

.calculator__screen-mem {
  font-family: 'Share Tech Mono', monospace;
  position: absolute;
  top: 0;
  left: 12px;
  color: #000;
  font-size: 20px;
  line-height: 18px;
  visibility: hidden;
}

.calculator__keyboard {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, 30px) repeat(4, 40px);
  gap: 15px;
}

.button {
  font-family: inherit;
  font-size: 30px;
  border-radius: 7px;
  border: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 5px;
  letter-spacing: -2px;
  outline: none;
  position: relative;
  background: linear-gradient(25deg, #525a65, #3b424c);
  color: rgba(255, 255, 255, .8);
  text-shadow: 0 0 2px rgba(255, 255, 255, .2);
  box-shadow: inset 2px -1px 1px 0 rgba(255, 255, 255, .2), inset -3px 2px 5px 0 rgba(0, 0, 0, .2), 4px 1px 1px 0 rgba(0, 0, 0, .5), -1px -3px 1px 0 rgba(0, 0, 0, .5), 4px -3px 1px 0 rgba(0, 0, 0, .5), -1px -1px 5px 0 rgba(0, 0, 0, .5);
}

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

.button[value="NEGATE"] {
  font-size: 20px;
}

.button[value="SQUARE"], .button[value="BACKSPACE"] {
  padding: 0;
}

.square-symbol {
  width: 31px;
  height: 19px;
}

.button_type_operation {
  font-size: 36px;
}

.button_type_memory {
  font-size: 24px;
}

.button_type_advanced {
  font-size: 24px;
}

.button_type_reset {
  background: linear-gradient(25deg, #9cc9dc, #68a4c0);
}

.backspace-symbol {
  width: 24px;
  height: 18px;
}

body {
  background-color: rgb(128,128,128);
}

.btn:not(:disabled):not(.disabled) {
  position: relative;
}

.btn:not(:disabled):not(.disabled) {
  position: relative;
  /*margin-left: auto;*/
  text-align: center;
  /*margin-right: auto;*/
  left: 39%;
}

.btn.btn-light.action-button.wowo {
  position: relative;
  left: -6%;
  top: 1px;
  height: 39px;
}

.navbar-dark .navbar-nav .nav-link {
  font-size: 17px;
}

.nav-link {
  color: white;
  font-size: 19px;
}

.a:hover {
}

a:hover {
  color: white;
  font-size: 18px;
}

.btn:not(:disabled):not(.disabled) {
  height: 83px;
  margin-left: 27px;
}

.navbar-dark .navbar-brand {
}

.btn:not(:disabled):not(.disabled) {
}