* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
}

body {
  background-color: hsl(222, 26%, 31%);
  font-family: sans-serif;
  transition: all 0.2s;
}

p {
  color: #fff;
  font-size: 1.6rem;
}

.calculator {
  max-width: 33rem;
  margin: 5rem auto;
}

.calc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.toggle-btn {
  width: 5rem;
  height: 1.8rem;
  background-color: hsl(224, 36%, 15%);
  border-radius: 2rem;
  position: relative;
}

.toggle-dot {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  background-color: hsl(6, 63%, 50%);
  position: absolute;
  top: 0.9rem;
  margin-left: 1rem;
  transform: translate(-50%, -50%);
  cursor: pointer;
  transition: all 0.3s;
  /* margin-left: 0.9rem; */
}

/* .mid {
  margin-left: 3.1rem;
} */

.left {
  margin-left: 0.9rem;
}

.right {
  margin-left: 4.1rem;
}

.dots {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 0.5rem;
  margin-left: 1.2rem;
}

.dote {
  width: 1.5rem;
  height: 2rem;
  background-color: #fff;
  cursor: pointer;
  margin-top: -0.5rem;
  margin-left: -0.8rem;
  opacity: 0;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 0.5rem;
}

.theme {
  font-size: 1.2rem;
}

.steps {
  text-align: end;
  letter-spacing: 1.3rem;
  font-size: 1.2rem;
}

.num-box {
  background-color: hsl(224, 36%, 15%);
  padding: 3rem 1rem;
  margin-top: 2rem;
  border-radius: 0.8rem;
  text-align: end;
}

.output {
  font-size: 2rem;
  font-weight: 600;
}

.calc-body {
  background-color: hsl(223, 31%, 20%);
  margin-top: 2rem;
  padding: 1.5rem;
  border-radius: 1rem;

  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.num {
  /* padding: 0.5rem 1.5rem; */
  background-color: hsl(0, 0%, 90%);
  color: hsl(198, 20%, 13%);
  font-size: 2.9rem;
  font-weight: 600;
  text-align: center;
  width: 6.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 0.3rem 0.5rem hsl(28, 16%, 65%);
  cursor: pointer;
}

.num-7 {
  grid-column: 1 / 2;
  grid-row: 1 / 2;
}

.num-8 {
  grid-column: 2 / 3;
  grid-row: 1 / 2;
}

.num-9 {
  grid-column: 3 / 4;
  grid-row: 1 / 2;
}

.del {
  grid-column: 4 /5;
  grid-row: 1 / 2;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  background-color: hsl(225, 21%, 49%);
  box-shadow: none;
  transition: all 0.2s;
  color: #fff;
}

.del:hover {
  background-color: hsl(225, 22%, 63%);
}

.num-4 {
  grid-column: 1 / 2;
  grid-row: 2 / 3;
}

.num-5 {
  grid-column: 2 / 3;
  grid-row: 2 / 3;
}

.num-6 {
  grid-column: 3 / 4;
  grid-row: 2 / 3;
}

.plus {
  grid-column: 4 / 5;
  grid-row: 2 / 3;
}

.num-1 {
  grid-column: 1 / 2;
  grid-row: 3 / 4;
}

.num-2 {
  grid-column: 2 / 3;
  grid-row: 3 / 4;
}

.num-3 {
  grid-column: 3 / 4;
  grid-row: 3 / 4;
}

.minus {
  grid-column: 4 / 5;
  grid-row: 3 / 4;
}

.dot {
  grid-column: 1 / 2;
  grid-row: 4 / 5;
}

.num-0 {
  grid-column: 2 / 3;
  grid-row: 4 / 5;
}

.division {
  grid-column: 3 / 4;
  grid-row: 4 / 5;
}
.multiply {
  grid-column: 4 / 5;
  grid-row: 4 / 5;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reset {
  grid-column: 1 / 3;
  grid-row: 5 / 6;
  background-color: hsl(225, 21%, 49%);
  transition: all 0.2s;
  color: #fff;
}

.reset:hover {
  background-color: hsl(225, 22%, 63%);
}

.equal {
  grid-column: 3 / 5;
  grid-row: 5 / 6;
  background-color: hsl(6, 63%, 50%);
  transition: all 0.2s;
  color: #fff;
}

.equal:hover {
  background-color: hsl(6, 61%, 57%);
}

.btn {
  border: none;
  padding: 1.2rem 0.5rem;
  border-radius: 0.6rem;
  cursor: pointer;
}