/* RESETS */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial Sans-Serif;
  transition: color .5s, background-color .5s;
}

button {
  border: none;
}

input:focus {
  border: none;
  outline: none;
}

/* UTILITY CLASSES */
:root {
  /* sizes */
  --width: 85vw;
  --height: calc(var(--width) * 1.7);

  /* colors */
  /* datk theme */
  --body-dark: hsl(242.5,100%,4.7%);
  --dark-border: 1px solid hsl(176.2,100%,50.2%);
  --screen-dark: hsla(176,100%,50%,0.1);
  --screen-cover-dark: hsl(0,0%,100%);
  --ctrl-dark: hsl(0,100%,13%);
  --ctrl-txt-dark: hsla(175.1,100%,76.1%,0.923);
  --btn-dark: linear-gradient(
  45deg,
  hsl(242.9,100%,12.4%),
  hsl(229.4,82.7%,36.3%));
  --btn-click-dark: linear-gradient(135deg,#0272AE,#2BFFDD);
  --text-dark: hsl(176.2,100%,50.2%);
  --dark-shadow: 0px 0px 10px hsla(176.2,100%,50.2%,0.5);


  /* light theme */
  --body-light: hsl(176,100%,50%);
  --light-border: 1px solid hsl(242.5,100%,4.7%);
  --screen-light: hsla(242.5,100%,4.7%,0.1);
  --screen-cover-light: hsl(0,0%,0%);
  --ctrl-light: hsl(0,56%,67%);
  --ctrl-txt-light: hsla(175.1,100%,15%,0.923);
  --btn-light: linear-gradient(
  45deg,
  hsl(200.9,97.7%,34.5%),
  hsl(170.4,100%,58.4%));
  --btn-click-light: linear-gradient(
  1355deg,
  hsl(242.9,100%,12.4%),
  hsl(229.4,82.7%,36.3%));
  --text-light: hsl(242.5,100%,4.7%);
  --light-shadow: 0px 0px 10px hsla(242.5,100%,4.7%,0.5);

}

@media (min-aspect-ratio:43/64) {
:root {
  --height: 90vh;
  --width: calc(var(--height) / 1.7)
}
}
/* CONTAINER STYLE */
body {
  height: 100vh;
  display: grid;
  place-items: center;
  background: var(--body-dark);
  position: relative;
}

[data-theme="light"] {
  background: var(--body-light);
}

.theme-toggle {
  width: calc(var(--width)/5);
  padding: .5% 2%;
  font-size: calc(var(--width)/16);
  text-align: center;
  border-radius: 20px;
  border: var(--dark-border);
  background: var(--btn-dark);
  color: var(--text-dark);
  box-shadow: var(--light-shadow);
  position: absolute;
  top: 48%;
  transform: translateY(calc(var(--height)*-0.5));
  z-index: 2;
}

[data-theme='light'] .theme-toggle {
  color: var(--text-light);
  border: var(--light-border);
  box-shadow: var(--dark-shadow);
  background: var(--btn-light);
}

.container {
  width: var(--width);
  height: var(--height);
  background: var(--body-dark);
  border-radius: 8.5% / 5%;
  border: var(--dark-border);
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  box-shadow: var(--dark-shadow);
  position: relative;
}

.back-animation {
  width: var(--width);
  height: var(--height);
  border-radius: 8.5% / 5%;
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  top: 50vh;
  left: 50vw;
  transform: translate(-50%,-50%);
}

@property --angle {
  syntax:"<angle>";
  inherits:false;
  initial-value:0deg;
}

/* BACKGROUND ANIMATION */
.back-animation::before,
.back-animation::after {
  --clr1: hsl(242.9,100%,12.4%);
  --clr2: hsl(182.5,100%,66.7%);
  content: '';
  width: 100%;
  height: 100%;
  padding: 1%;
  position: absolute;
  border-radius: inherit;
  background: conic-gradient(
  from var(--angle),
  var(--clr1),
  var(--clr2),
  var(--clr2),
  transparent,
  transparent,
  var(--clr1));
  z-index: -1;
  animation: loop 5s linear infinite;
}

.back-animation::after {
  filter: blur(15px);
}

@keyframes loop {
  to {
    --angle: 360deg;
  }
}


[data-theme="light"] .container {
  background: var(--body-light);
  border: var(--light-border);
  box-shadow: var(--light-shadow);
}

[data-theme="light"] :is(.back-animation::before,.back-animation::after) {
  --clr1: hsl(200.9,97.7%,34.5%);
  --clr2: hsl(170.4,100%,58.4%);
}

/* SCREEN STYLES */

.screen {
  width: 97%;
  height: 20%;
  padding: 0 2%;
  background: var(--screen-dark);
  border-radius: 10% 10% 0 0 / 20% 20% 0 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

[data-theme="light"] .screen {
  background: var(--screen-light);
}

.screen__deg-rag {
  width: 5%;
  height: 5%;
  position: absolute;
  top: 5%;
  left: 10%;
  color: var(--text-dark);
  opacity: 50%;
  font-size: calc(var(--width)/20);
}

[data-theme="light"] .screen__deg-rag {
  color: var(--text-light);
}

.screen__cover {
  width: 100%;
  height: 100%;
  background: var(--screen-cover-dark);
  position: absolute;
  transform: scale(0);
  transform-origin: right top;
  inset: 0;
  z-index: 5;
  clip-path: circle(50% at right top);
  -webkit-clip-path: circle(50% at right top);
}

[data-theme="light"] .screen__cover {
  background: var(--screen-cover-light);
}

.clearer {
  animation: cover .7s linear;
}

@keyframes cover {
  0 {
    opacity: 100%;
  }
  70% {
    opacity: 70%;
    transform: scale(5);
  }
  100% {
    opacity: 0;
    transform: scale(5);
  }
}

.screen__main , .screen__result {
  width: inner-text;
  height: 50%;
  background: none;
  border: none;
  padding: 5% 0;
  font-size: calc(var(--width)/20);
  color: var(--text-dark);
  display: flow-roots;
  white-space: nowrap;
  text-align: right;
  transition: 0.5s;
  overflow: auto;
  scrollbar-width: thin;
}

[data-theme="light"] :is(.screen__main,.screen__result) {
  color: var(--text-light);
}

.screen__main {
  font-size: calc(var(--width)/18);
  font-weight: bolder;
}

/* BUTTONS STYLE */
.btns {
  width: 98%;
  height: 77%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  border-radius: 4%/3%;
  overflow: hidden;
}

.btns__ctrl {
  width: 100%;
  flex: 1;
  display: flex;
}

.ctrl {
  width: 25%;
  height: 100%;
  background: var(--ctrl-dark);
  text-align: center;
  color: var(--ctrl-txt-dark);
  transition: transform .2s;
  font-size: calc(var(--width)/24);
}

[data-theme="light"] .ctrl {
  background: var(--ctrl-light);
  color: var(--ctrl-txt-light);
}

.left, .right,.deg-rad {
  background: var(--btn-dark);
  color: var(--text-dark);
  border-right: 1px solid black;
  border-left: 1px solid black;
  border-collapse: collapse;
  position: relative;
  overflow: hidden;
}

[data-theme="light"] :is(.left,.right,.comma) {
  background: var(--btn-light);
  color: var(--text-light);
}


/* NUMBERS AND OPERATORS BUTTON STYLES */
.btns__nums {
  width: 100%;
  padding-top: 1%;
  flex: 15;
  display: grid;
  grid-template-columns: repeat(5,1fr);
  border-radius: 0 0 20px 20px;
  overflow: hidden;
}

.btn {
  width: 90%;
  height: 90%;
  place-self: center;
  border-radius: 18%/14%;
  display: grid;
  place-content: center;
  font-size: calc(var(--width)/16);
  background: var(--btn-dark);
  color: var(--text-dark);
  position: relative;
  overflow: hidden;
  transition: transform .2s;
}

[data-theme="light"] .btn {
  background: var(--btn-light);
  color: var(--text-light);
  box-shadow: var(--light-shadow);
}

.btn.num {
  background: none;
  z-index: 99;
}

.btn.num::before, .btn.num::after {
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: -1;
}

.btn.num::before {
  background: var(--btn-dark);
}

[data-theme="light"] .btn.num::before {
  background: var(--btn-light);
}

[data-theme="light"] .btn.num::after {
  background: rgba(255,255,255,0.5);
}

.btn:active, .ctrl:active {
  transform: scale(0.95);
  opacity: 0.8;
}