/* Hide main content until preloader is done */
body.loading #main-content,
body.loading special-header {
    opacity: 0;
    visibility:hidden;
}

/* Prevent background scrolling while loading */
body.loading {
    overflow: hidden;
}

/* Smooth transition for main content */
#main-content,
special-header {
    transition: opacity 0.6s ease-in-out, visibility 0.6s ease-in-out;
}

/* Preloader Styles */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse 800px 400px at center 60%, rgba(58, 134, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 600px 300px at center 40%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        radial-gradient(circle 400px at center, rgba(58, 134, 255, 0.04) 0%, transparent 70%),
        #010719;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 1;
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    overflow: hidden;
    will-change: transform, opacity;
    transform: translateZ(0);
}

/* Clean preloader without background elements */

#preloader.hidden {
    opacity: 0;
    pointer-events: none;
}

#loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fadeInScale 1s ease-out forwards;
    position: relative;
    will-change: transform, opacity;
    transform: translateZ(0);
}

/* Clean loader without background effects */

#loader img {
    width: 40px; /* Adjust to your logo's size */
    position: relative;
    z-index: 2;
    filter: 
        drop-shadow(0 0 20px rgba(58, 134, 255, 0.4))
        drop-shadow(0 0 40px rgba(139, 92, 246, 0.3));
    animation: logoGlow 2s ease-in-out infinite alternate;
    will-change: filter;
    transform: translateZ(0);
}

@keyframes logoGlow {
    0% {
        filter: 
            drop-shadow(0 0 15px rgba(58, 134, 255, 0.3))
            drop-shadow(0 0 30px rgba(139, 92, 246, 0.2));
    }
    100% {
        filter: 
            drop-shadow(0 0 25px rgba(58, 134, 255, 0.5))
            drop-shadow(0 0 40px rgba(139, 92, 246, 0.4));
    }
}

/* Pulsating glow animation with concentric circles */
.logo-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 1;
}

.glow-ring {
    position: absolute;
    border: 2px solid rgba(58, 134, 255, 0.3);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulseGlow 2.5s ease-out infinite;
    opacity: 0;
    will-change: transform, opacity;
}

.glow-ring:nth-child(1) {
    width: 90px;
    height: 90px;
    animation-delay: 0.1s;
}

.glow-ring:nth-child(2) {
    width: 120px;
    height: 120px;
    animation-delay: 0.5s;
    border-color: rgba(139, 92, 246, 0.25);
}

.glow-ring:nth-child(3) {
    width: 150px;
    height: 150px;
    animation-delay: 1s;
    border-color: rgba(58, 134, 255, 0.2);
}

.glow-ring:nth-child(4) {
    width: 180px;
    height: 180px;
    animation-delay: 1.5s;
    border-color: rgba(139, 92, 246, 0.15);
}

.loader-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-heading);
    color: #ffffff;
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
}

/* Accessibility: Reduce motion */
@media (prefers-reduced-motion: reduce) {
    #loader {
        animation: none;
        opacity: 1;
        transform: scale(1);
    }
    #preloader {
        transition: opacity 0.3s ease-in-out;
    }
}

@keyframes fadeInScale {
    0% {
        opacity: 0;
        transform: scale(0.9) translateZ(0);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateZ(0);
    }
}

@keyframes pulseGlow {
    0% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9) translateZ(0);
    }
    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1) translateZ(0);
    }
    100% {
        opacity: 0;
        transform: translate(-50%, -50%) scale(1.1) translateZ(0);
    }
}

/* Ambient glow and reflection animations removed */

/* Background animations removed */

/* Geometric shapes removed for cleaner design */

/* Shape animations removed */

/* Optimized Dive In Animation - No Rotation for Better Performance */
#preloader.dive-in {
    transform: scale(3) translateZ(0);
    opacity: 0;
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
    will-change: transform, opacity;
}

#preloader.dive-in #loader {
    transform: scale(0.2) translateZ(0);
    opacity: 0;
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
    will-change: transform, opacity;
}

#preloader.dive-in #loader img {
    transform: scale(0.1) translateZ(0);
    opacity: 0;
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
    will-change: transform, opacity;
}

#preloader.dive-in .glow-ring {
    transform: translate(-50%, -50%) scale(2.5);
    opacity: 0;
    transition: transform 0.6s ease-out, opacity 0.6s ease-out;
    will-change: transform, opacity;
}