body {
    background-color: #F9F7F7;
    font-family: sans-serif;
}

h1 {
    color: #112D4E;
}

#fileBtnProvider {
    background-color: #3F72AF;
    border: 1px solid #DBE2EF;
    color: #DBE2EF;
}

button {
    padding: 0.5rem 1rem;
    background-color: #DBE2EF;
    border: 1px solid #3F72AF;
    color: #3F72AF;
    border-radius: 4px;
    cursor: pointer;
}

button:hover {
    filter: brightness(1.2);
}

main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

main img {
    max-width: 300px;
    height: auto;
    position: relative;
}


.laoder {
    display: none;
    position: absolute;
    top: 50%;
    right: 50%;
    transform: translate(50%, -50%);
    width: 80px;
    height: 80px;
}

.laoder div {
    box-sizing: border-box;
    display: block;
    position: absolute;
    width: 64px;
    height: 64px;
    margin: 8px;
    border: 8px solid #fff;
    border-radius: 50%;
    animation: laoder 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    border-color: #fff transparent transparent transparent;
}

.laoder div:nth-child(1) {
    animation-delay: -0.45s;
}

.laoder div:nth-child(2) {
    animation-delay: -0.3s;
}

.laoder div:nth-child(3) {
    animation-delay: -0.15s;
}

@keyframes laoder {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}