* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Kalam", cursive;
    outline: none;
}

body{
    height: 100vh;
    width: 100vw;
}

.background{
    background-repeat: no-repeat;
    top: 0;
    position: absolute;
    height: 100vh;
    width: 100vw;
    z-index: -1;
}
/* 
.logo {
    width: 100px;
    display: block;
    margin: 20px auto;
} */

main {
    width: 375px;
    background: #F4F4F4;
    border-radius: 50px;
    margin: 2.5% auto;
    padding: 20px;
}

label {
    color: #777777;
    font-weight: 400;
    font-size: 18px;
}

select,
input {
    border-radius: 4px;
    border: 3px groove #BBBBBB;
    background: #FFFFFF;
    height: 35px;
    width: 100%;
    margin-bottom: 20px;
    appearance: none;
    padding-left: 10px;
    font-weight: 700;
    font-size: 18px;
    color: #555555;
    cursor: pointer;
}

button {
    border-radius: 5px;
    font-weight: 700;
    font-size: 18px;
    color: #fff;
    background-color: #74C6DB;
    width: 100%;
    border: none;
    height: 40px;
    cursor: pointer;
}

button:hover {
    opacity: .7;
}

button:active {
    opacity: .4;
}

section {
    border: 5px solid transparent;
    border-image: linear-gradient(45deg, #adff2f, #7AFA37, #00aaff);
    border-image-slice: 1;
    margin-top: 20px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: cascade 2s linear infinite;
}

@keyframes cascade {
    0% {
        border-image-source: linear-gradient(180deg, #adff2f, #7AFA37, #00aaff);
    }
    100% {
        border-image-source: linear-gradient(360deg, #adff2f, #7AFA37, #00aaff);
    }
}

.arrow {
    margin: 10px 0;
}

.currency-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.currency{
    color: #777777;
    font-size: 18px;
}

.currency-value, .currency-value-converted{
    color: #555555;
    font-weight: 700;
    font-size: 25px;
}

.currency-img-converted, .currency-img-to-convert{
    height: 52px;
}