#page-content {
    visibility: hidden;
    opacity: 0;
    transition: opacity var(--animation-speed) ease;
}

#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loader {
    position: absolute;
    border: 4px solid var(--main-color);
    border-top: 4px solid white;
    border-radius: 50%;
    width: 120px;
    height: 120px;
    animation: spin 2s linear infinite;
}

.loader-input {
    position: absolute;
    border: 4px solid var(--main-color);
    border-bottom: 4px solid white;
    border-radius: 50%;
    width: 80px;
    height: 80px;
    animation: spin-rotate 2s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes spin-rotate {
    0% { transform: rotate(360deg); }
    100% { transform: rotate(0deg); }
}