*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body{
  height: 100vh;
  background: rgb(82, 86, 105);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.main-heading{
  font-size: 3rem;
  color: #ffffff;
  margin-bottom: 25px;
  font-family: "Comic Neue", cursive;
  text-align: center;
}

.main-container{
  width: 320px;
  padding: 25px;
  border-radius: 32px;
  background: rgb(82, 86, 105);
  box-shadow: 
      12px 12px 25px rgba(0, 0, 0, 0.35),
      -12px -12px 25px rgba(120, 125, 150, 0.5);
}

.display input{
  width: 100%;
  height: 60px;
  border: none;
  border-radius: 20px;
  background: rgb(82, 86, 105);
  box-shadow: 
      inset 6px 6px 12px rgba(0, 0, 0, 0.35),
      inset -6px -6px 12px rgba(120, 125, 150, 0.5);
  font-size: 1rem;
  text-align: center;
  padding: 10px 15px;
  color: #ffffff;
  margin-bottom: 18px;
  outline: none;
}

.display input:focus{
  box-shadow: 0 0 0 2px rgba(255,255,255,0.25);
}

.buttons{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
  margin-bottom: 15px;
}

button{
  height: 60px;
  border: none;
  border-radius: 18px;
  background: rgb(82, 86, 105);
  color: #ffffff;
  font-size: 1.1rem;
  cursor: pointer;
  font-family: "Comic Neue", cursive;
  box-shadow: 
      6px 6px 14px rgba(0, 0, 0, 0.4),
      -6px -6px 14px rgba(120, 125, 150, 0.5);
  transition: all 0.15s ease;
}

button:hover{
  transform: scale(1.05);
}

button:active{
  box-shadow: 
      inset 6px 6px 12px rgba(0, 0, 0, 0.4),
      inset -6px -6px 12px rgba(120, 125, 150, 0.5);
  transform: scale(0.95);
}

.result{
  text-align: center;
  margin-top: 10px;
}

.result p{
  color: #ffffff;
  font-weight: 500;
}

#toast-container .toast {
   background-color: rgba(120, 125, 150, 0.5) !important;
   
}