/* -------------------- ENTER VR BUTTON -------------------- */
.a-enter-vr-button {
    display: none;
}

#customEnterVRButton {
    background: linear-gradient(135deg, #b79f63, #e3c882); /* طلایی لوکس گرادیانی */
    color: #1c1c1e;
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s ease;
    height: 45px;
    width: 140px;
    font-family: 'Poppins', sans-serif;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    z-index: 10;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 2px rgba(255,255,255,0.3);
}

#customEnterVRButton:hover {
    background: linear-gradient(135deg, #d4b76b, #f1d98a);
    transform: translateX(-50%) scale(1.05);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* Small screens */
@media (max-width: 600px) {
    #customEnterVRButton {
        font-size: 14px;
        height: 42px;
        width: 120px;
    }
}


/* -------------------- LOADER -------------------- */
#loader {
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1c1c1e, #2c2c30); /* تیره حرفه‌ای */
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    animation: fadeIn 0.6s ease-in-out;
}

/* Spinner or Logo inside loader */
#loader > img {
    width: 240px;
    height: auto;
    filter: drop-shadow(0 0 8px rgba(183, 159, 99, 0.7)); /* درخشش طلایی */
    animation: pulse 1.8s infinite ease-in-out;
}

/* Fade-in animation */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Logo pulse animation */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.04);
        opacity: 0.85;
    }
}