@import url("https://fonts.googleapis.com/css2?family=League+Spartan:wght@100..900&display=swap");

:root {
  /* Backgrounds */
  --main-bg: hsl(222, 26%, 31%);
  --toggle-keypad-bg: hsl(223, 31%, 20%);
  --screen-bg: hsl(224, 36%, 15%);

  /* Keys */
  --key1-bg: hsl(225, 21%, 49%);
  --key1-shadow: hsl(224, 28%, 35%);

  --key2-bg: hsl(6, 63%, 50%);
  --key2-shadow: hsl(6, 70%, 34%);

  --key3-bg: hsl(30, 25%, 89%);
  --key3-shadow: hsl(28, 16%, 65%);

  /* Text */
  --buttons-text-color:hsl(221, 14%, 31%);
  --sub-buttons-text-color: hsl(0, 0%, 100%);
  --equal-button-color:hsl(0,0%,100%);
  --text-color: hsl(0, 0%, 100%);
}

* {
  box-sizing: border-box;
  font-family: "League Spartan", sans-serif;
  font-size: 32px;
  font-weight: 700;
}

body.theme2{
  /* Backgrounds */
  --main-bg: hsl(0, 0%, 90%);
  --toggle-keypad-bg: hsl(0, 5%, 81%);
  --screen-bg: hsl(0, 0%, 93%);

  /* Keys */
  --key1-bg: hsl(185, 42%, 37%);
  --key1-shadow: hsl(185, 58%, 25%);

  --key2-bg: hsl(25, 98%, 40%);
  --key2-shadow: hsl(25, 99%, 27%);

  --key3-bg: hsl(45, 7%, 89%);
  --key3-shadow: hsl(35, 11%, 61%);

  /* Text */
  --buttons-text-color:hsl(60, 10%, 19%);
  --sub-buttons-text-color: hsl(0, 0%, 100%);
  --equal-button-color:hsl(0,0%,100%);
  --text-color: hsl(60, 10%, 19%);    
}
body.theme3{
    /* Backgrounds */
    --main-bg: hsl(268, 75%, 9%);
    --toggle-keypad-bg: hsl(268, 71%, 12%);
    --screen-bg: hsl(268, 71%, 12%);
  
    /* Keys */
    --key1-bg: hsl(281, 89%, 26%);
    --key1-shadow: hsl(285, 91%, 52%);
  
    --key2-bg: hsl(176, 100%, 44%);
    --key2-shadow: hsl(177, 92%, 70%);
  
    --key3-bg: hsl(268, 47%, 21%);
    --key3-shadow: hsl(290, 70%, 36%);
  
    /* Text */
    --buttons-text-color:hsl(52, 100%, 62%);
    --sub-buttons-text-color: hsl(0, 0%, 100%);
    --equal-button-color:hsl(198, 20%, 13%);
    --text-color: hsl(52, 100%, 62%);    
  }
body {
    margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background-color: var(--main-bg);
}
.container {
  width: 475px;
  display: flex;
  flex-direction: column;
}
.first-row {
  display: flex;
  align-items: end;
  justify-content: space-between;
}
.themes-container {
  display: flex;
  align-items: end;
  gap: 25px;
}
.themes-title {
  margin: 5px 0;
  color: var(--text-color);
  font-size: 12px;
  font-weight: 700;
}
.title {
  color: var(--text-color);
  margin: 5px 0;
}
.toggle-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
}

.labels {
  display: flex;
  justify-content: space-between;
  width: 90px;
  color: var(--text-color);
}
.labels > span {
  font-size: 16px;
}
.toggle {
  width: 90px;
  height: 30px;
  background-color: var(--toggle-keypad-bg);
  border-radius: 15px;
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 5px;
}

.toggle::before {
  content: "";
  width: 20px;
  height: 20px;
  background-color: var(--key2-bg);
  border-radius: 50%;
  position: absolute;
  transition: transform 0.3s ease-in-out;
}

/* State 1 */
.toggle[data-state="1"]::before {
  transform: translateX(0);
}

/* State 2 */
.toggle[data-state="2"]::before {
  transform: translateX(30px);
}

/* State 3 */
.toggle[data-state="3"]::before {
  transform: translateX(60px);
}

.result-container {
  width: 100%;
  height: 100px;
  background-color: var(--screen-bg);
  border-radius: 10px;
  margin: 25px 0;
  color: var(--text-color);
  display: flex;
  align-items: center;
  justify-content: end;
  padding: 15px;
}

.buttons-container {
  padding: 15px 20px;
  background-color: var(--toggle-keypad-bg);
  border-radius: 10px;
  display: grid;
  grid-template-rows: repeat(5, 1fr); /* 5 rows */
  grid-template-columns: repeat(4, 1fr); /* 4 columns */
  gap: 15px; /* Space between grid items */
}

.button {
  background-color: var(--key3-bg);
  text-align: center;
  padding: 15px 20px;
  border-radius: 10px;
  color: var(--buttons-text-color);
  outline: none;
  cursor: pointer;
  border: none;
  box-shadow: 0px 4px 1px var(--key3-shadow);
}
button:hover,.toggle:hover::before{
    filter: brightness(1.5);
}
#del,
#reset {
  background-color: var(--key1-bg);
  color: var(--sub-buttons-text-color);
  box-shadow: 0px 4px 1px var(--key1-shadow);

}
#equal {
  grid-column: span 2;
  background-color: var(--key2-bg);
  color: var(--equal-button-color);
  box-shadow: 0px 4px 1px var(--key2-shadow);

}
#reset {
  grid-column: span 2;
}
@media (max-width: 475px) {
  .container {
    width: 100%;
  }
}