/**
 * Premium Cinematic Page Loader
 * Animated loader with blue-gold theme and GSAP integration
 */

/* Premium Color Variables */
:root {
    --loader-navy-deep: #0A1628;
    --loader-navy-mid: #1E3A5F;
    --loader-gold-vibrant: #FFD700;
    --loader-gold-deep: #B8860B;
}

/* Page Loader Overlay */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--loader-navy-deep) 0%, var(--loader-navy-mid) 100%);
    opacity: 0.9;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
    will-change: transform;
}

.page-loader.hidden {
    transform: translateY(-100%);
    pointer-events: none;
}

/* Loader Content Container */
.loader-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

/* Logo Wrapper for Glow Effect */
.loader-logo-wrapper {
    position: relative;
    display: inline-block;
    margin-bottom: 20px;
}

/* Logo with Animation */
.loader-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: contain;
    background: white;
    padding: 15px;
    position: relative;
    z-index: 2;
    opacity: 0;
    transform: scale(0.8);
    box-shadow: 0 0 40px rgba(255, 215, 0, 0.4);
}

/* Logo Glow Effect */
.loader-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 215, 0, 0.4) 0%, transparent 70%);
    opacity: 0;
    z-index: 1;
    animation: glowPulse 2s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.8;
    }
}

/* Gold Sweep Line */
.loader-gold-sweep {
    width: 200px;
    height: 3px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--loader-gold-deep) 20%,
        var(--loader-gold-vibrant) 50%,
        var(--loader-gold-deep) 80%,
        transparent 100%
    );
    margin: 0 auto 25px;
    transform: scaleX(0);
    transform-origin: center;
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
}

/* Loading Text */
.loader-text {
    color: #ffffff;
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.1rem;
    opacity: 0.8;
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* Loading Dots Animation */
.loader-dots {
    display: inline-block;
    animation: loaderDots 1.4s infinite step-start;
}

@keyframes loaderDots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Background Animated Orbs for Loader */
.page-loader::before,
.page-loader::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: loaderOrbFloat 4s ease-in-out infinite;
}

.page-loader::before {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--loader-gold-vibrant) 0%, transparent 60%);
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.page-loader::after {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #3B82F6 0%, transparent 60%);
    bottom: -80px;
    left: -80px;
    animation-delay: 2s;
}

@keyframes loaderOrbFloat {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, -30px) scale(1.1);
    }
}

/* Admin-specific loader (darker theme) */
.admin-loader {
    background: linear-gradient(135deg, #0d1117 0%, #161b22 100%);
}

.admin-loader .loader-logo {
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .loader-logo {
        width: 100px;
        height: 100px;
        padding: 12px;
    }

    .loader-glow {
        width: 140px;
        height: 140px;
    }

    .loader-gold-sweep {
        width: 150px;
    }

    .loader-text {
        font-size: 0.95rem;
        letter-spacing: 2px;
    }

    .page-loader::before {
        width: 250px;
        height: 250px;
    }

    .page-loader::after {
        width: 200px;
        height: 200px;
    }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .page-loader {
        transition: opacity 0.3s ease;
    }

    .page-loader.hidden {
        transform: none;
        opacity: 0;
    }

    .loader-glow,
    .page-loader::before,
    .page-loader::after {
        animation: none;
    }

    .loader-logo {
        opacity: 1;
        transform: scale(1);
    }

    .loader-gold-sweep {
        transform: scaleX(1);
    }
}