@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@100;300;400;500;600&display=swap');

:root{
      --black:#000;
      --white:#fff;
   
      --blight:#333;
    --border:.1rem solid var(--black);
    --border-hover:.1rem solid var(--blight);
    --box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

*{
    font-family: 'Poppins', sans-serif;
    margin:0; padding:0;
    box-sizing: border-box;
    outline: none; border:none;
    text-decoration: none;
 
    transition:all .2s linear;
    transition:width none;
    
}

html{
    font-size: 62.5%;
    overflow-x: hidden;
    scroll-padding-top: 5rem;
    scroll-behavior: smooth;
}

header{
   
    text-align: center;
    padding:1.5rem 7%;
   box-shadow: var(--box-shadow);
    position: fixed;
    top:0; left: 0; right: 0;
    z-index: 1000;
    background: var(--white);
}

.logo{
    font-size: 2.5rem;
    font-weight: bolder;
    color:var(--black);
    text-transform: uppercase;
}
.logo i{
    color:var(--black)
}
.home .box-container{
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 4rem;
}
.home{
    position: relative;
    top: 9.9vh;
    left: 0;
    right: 0;
    min-height: 100vh;
    padding: 1rem;
}
.home .box-container .box{
    flex: 1 1 30rem;
    padding: 2rem 3%;
    border-radius: .5rem;
    overflow: hidden;
    box-shadow: 0 1rem 2rem rgba(0,0,0,.1);
    display: flex;
    flex-direction: column;
  
    
}
.home .box-container .history{
    overflow-x: scroll;
}
.home .box-container .box table {
    border-collapse: collapse;
    width: 100%;
    overflow-x: scroll;
  }

  .home .box-container .box td {
   font-size: 12px;
    text-align: justify;
    padding: .8rem;
    border-bottom: 1px solid #ddd;

  }
  .home .box-container .box td i{
    font-size: 12px;
     color: red;
   
  }

.variable form,.variable{
    height: 40vh;
    display: flex;
    flex-direction: column;
}
.box h3,h4{
    text-align: center;
    border-bottom: var(--border);
    font-size: 2rem;
   
    margin-bottom: 2rem;
}
.box input{
    border: var(--border);
    margin-bottom: 2rem;
    font-size: 2rem;
}
.calculator{
    height: 85vh;
}

.display{
    height: 16vh;
  box-shadow: var(--box-shadow);
  margin-bottom: .7rem;
 
}
.display input{
    text-align: right;
   
    padding:2rem  3%;
    height: 40%;
 width: 100%;
 border: none;
 font-weight:500;
 font-size: 14px;

  
  
}
.result{
    text-align: right;
    font-size: 16px;
    padding:2rem  3%;
    height: 55%;
    overflow: hidden;
    font-weight: bolder;
 
}

.buttons{
    box-shadow: var(--box-shadow);
}
.row{
    padding: 1rem;
   display: flex;
  justify-content: space-around;
}
.btn{
   width: 18%;
   text-transform: none;
   height: 4rem;
   background: var(--white);
   box-shadow: var(--box-shadow);
  
}