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

body {
    background: linear-gradient(220deg, #b8e994, #079992, #eb2f06, #4a69bd, #b71540);
    background-size: 300% 300%;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    animation: move-bg 13s linear infinite;
}

.container {
    width: 100%;
    max-width: 500px;
    padding: 50px 10px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 16px;
}

.logo {
    height: 160px;
    aspect-ratio: 1/1;
    object-fit: cover;
    opacity: 80%;
}
.title {
    margin: 0;
    text-transform: uppercase;
    text-align: center;
    color: rgba(0, 0, 0, 0.8);
}
.info-container {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
}
.comparison-info {
    margin-top: 20px;
    font-size: 40px;
    text-shadow: 10px;
    font-family: sans-serif;
    color: rgba(0, 0, 0, 0.8);
    font-weight: bold;
}
.controls-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}
.select-control {
    font-size: 16px;
    width: 100px;
    height: 40px;
    padding: 5px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    outline: none;
    cursor: pointer;
    transition: 0.5s;
    font-size: 20px;
    border: none;
}
.select-control:hover {
    box-shadow: 0 0 7px 3px rgba(255, 255, 255, 0.3);
    transition: 0.5s;
}
.swap-btn {
    width: 100px;
    height: 40px;
    text-transform: uppercase;
    font-size: 20px;
    cursor: pointer;
    border-radius: 10px;
    border: none;
    transition: 0.5s;
    background: rgba(255,255,255,0.3);
}

.swap-btn:hover {
        box-shadow: 0 0 7px 3px rgba(255, 255, 255, 0.3);
        color: rgba(255, 255, 255, 0.6);
        transition: 0.5s;
}
.swap-btn:active {
    background-color: rgb(215, 215, 215);
    color: black;
}
.input-control {
    width: 100%;
    font-size: 20px;
    height: 40px;
    padding: 5px 10px;
    background: rgba(255,255,255,0.5);
    border: none;
    border-radius: 10px;
    outline: none;
}
.input-control:focus-visible {
    box-shadow: 0 0 7px 3px rgba(255, 255, 255, 0.3);
    transition: 0.5s;
}

@keyframes move-bg {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}