/* Loader overlay */
#loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgb(88, 115, 88); /* nebo barva webu */
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Jednoduchý spinner */
.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Web je zpočátku skrytý */
.site,
.bg {
    visibility: hidden;
}