:root{
    --color-blue-dark: #04081B;
    --color-blue: #183AB2;
    --color-blue-hover: #1845e9;
    --color-black: #0D0101;
    --color-white: #EDEDED;
    --color-gray-ligth: #E4E4E4;
    --color-gray-dark: #8e8e8e;
    --color-vino: #B41313;
    --color-vino-hover: #cb1111;
    --color-pink: #B218AC;
    --color-pink-hover: #d11acb;

    --font: 'Poppins', arial;
}
/* Globales */
body{
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 100vh;
    background: linear-gradient(var(--color-blue-dark)70%, var(--color-black));
}
.title{
    color: var(--color-white);
    font-family: var(--font);
    padding: 3rem 0;
    font-size: 3rem;
    font-weight: 600;
    text-align: center;
}
/* LOADER */
.loader{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--color-black);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: .5s linear;
}
.loader--remove{
    left: -150%;
    opacity: 0;
    z-index: -1;
}
.loader__content{
    width: 82%;
    padding: 4rem 0;
}
.loader__link{
    font-family: var(--font);
    font-size: 2rem;
    color: var(--color-white);
    margin-bottom: 2rem;
    list-style: none;
    display: flex;
    align-items: center;
}
.icon{
    max-width: 4rem;
    height: 4rem;
    overflow: hidden;
    display: flex;
    margin-left: 1rem;
}
/* CALCULADORA */
.main{
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.container{
    background-color: #ffffff17;
    backdrop-filter: blur(2rem);
    border-radius: 1rem;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(6, 1fr);
    grid-template-areas: 
    "display display display display"
    "display display display display"
    "clear delete divi multi"
    "siete ocho nueve menos"
    "cuatro cinco seis sumar"
    "uno dos tres sumar"
    "cero cero punto igual";
    font-family: var(--font);
    width: 100%;
    max-width: 35rem;
    gap: 1rem;
    /* box-shadow: 0px -1px 5px var(--color-gray-ligth); */
}
.display{
    grid-area: display;
    padding: 2rem;
    text-align: right;
    background: linear-gradient(var(--color-gray-ligth)5%, var(--color-gray-dark));
    border-radius: .7rem;
    font-size: 4rem;
    font-weight: 600;
    overflow-x: auto;
    box-shadow: 0px 3px 4px var(--color-black);
    margin-bottom: 2rem;
}
.btn{
    font-size: 2em;
    font-weight: 600;
    color: var(--color-white);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: .5rem;
    border: 1px solid var(--color-gray-dark);
    border-radius: 1rem;
    cursor: pointer;
    background: transparent;
}
.btn:focus{
    outline: none;
}
.btn--delete picture{
    width: 3.5rem;
    display: grid;
    place-content: center;
}
.btn--divi{
    font-size: 1.7rem;
}
.btn--clear{
    background: var(--color-vino);
}
.btn--plus{
    background: var(--color-pink);
    grid-area: sumar;
}
.btn--result{
    background: var(--color-blue);
}
.btn--cero{
    grid-area: cero;
}
.btn:active{
    background: var(--color-blue-dark);
}
/* BOTON DEL LOADER */
.btn--remove{
    font-family: var(--font);
    font-size: 2rem;
    padding: 2rem;
    background: var(--color-blue-hover);
    border: none;
}
@media screen and (min-width: 768px) {
    .title{
        font-size: 5rem;
    }
    .btn{
        transition: .3s linear;
    }
    @media (hover: hover){
        .btn:hover{
            background: var(--color-blue-dark);
        }
        .btn--clear:hover{
            background: var(--color-vino-hover);
        }
        .btn--plus:hover{
            background: var(--color-pink-hover);
        }
        .btn--result:hover{
            background: var(--color-blue-hover);
        }
    }
}
@media screen and (max-width: 360px) {
    .btn{
        font-size: 1.9rem;
        width: 90%;
    }
    .container{
        grid-gap: 5px;
    }
}