/* Skeleton Loader */
        .skeleton-loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 99999;
            transition: opacity 0.5s ease, visibility 0.5s ease;
        }

        .skeleton-loader.hidden {
            opacity: 0;
            visibility: hidden;
        }

        /* Logo Animation Container */
        .loader-logo-container {
            position: relative;
            width: 150px;
            height: 150px;
            margin-bottom: 2rem;
        }

        /* Animated Ring */
        .loader-ring {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 180px;
            height: 180px;
            border: 3px solid transparent;
            border-top-color: #8b5cf6;
            border-right-color: #a78bfa;
            border-radius: 50%;
            animation: spin 1.5s cubic-bezier(0.68, -0.55, 0.265, 1.55) infinite;
        }

        .loader-ring:nth-child(2) {
            width: 150px;
            height: 150px;
            border-top-color: #a78bfa;
            border-right-color: #c4b5fd;
            animation-duration: 2s;
            animation-direction: reverse;
        }

        @keyframes spin {
            0% {
                transform: translate(-50%, -50%) rotate(0deg);
            }
            100% {
                transform: translate(-50%, -50%) rotate(360deg);
            }
        }

        /* Logo Image */
        .loader-logo {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: linear-gradient(135deg, #8b5cf6, #a78bfa);
            padding: 3px;
            animation: pulse 2s ease-in-out infinite;
            box-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
        }

        .loader-logo img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            object-fit: cover;
            background: #1a1a2e;
        }

        @keyframes pulse {
            0%, 100% {
                transform: translate(-50%, -50%) scale(1);
                box-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
            }
            50% {
                transform: translate(-50%, -50%) scale(1.05);
                box-shadow: 0 0 60px rgba(139, 92, 246, 0.8);
            }
        }

        /* Loading Text */
        .loader-text {
            color: #ffffff;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 3px;
            text-transform: uppercase;
            background: linear-gradient(90deg, #8b5cf6, #a78bfa, #c4b5fd, #a78bfa, #8b5cf6);
            background-size: 200% auto;
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            animation: shimmer 3s linear infinite;
            margin-bottom: 1rem;
        }

        @keyframes shimmer {
            0% {
                background-position: 200% center;
            }
            100% {
                background-position: -200% center;
            }
        }

        /* Progress Bar */
        .loader-progress {
            width: 300px;
            height: 4px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            overflow: hidden;
            position: relative;
        }

        .loader-progress-bar {
            height: 100%;
            background: linear-gradient(90deg, #8b5cf6, #a78bfa, #c4b5fd);
            border-radius: 10px;
            animation: progress 2s ease-in-out infinite;
            box-shadow: 0 0 20px rgba(139, 92, 246, 0.6);
        }

        @keyframes progress {
            0% {
                width: 0%;
                transform: translateX(0);
            }
            50% {
                width: 70%;
            }
            100% {
                width: 100%;
                transform: translateX(0);
            }
        }

        /* Loading Dots */
        .loader-dots {
            margin-top: 1rem;
            display: flex;
            gap: 8px;
        }

        .loader-dot {
            width: 10px;
            height: 10px;
            background: #8b5cf6;
            border-radius: 50%;
            animation: bounce 1.4s infinite ease-in-out both;
        }

        .loader-dot:nth-child(1) {
            animation-delay: -0.32s;
        }

        .loader-dot:nth-child(2) {
            animation-delay: -0.16s;
        }

        @keyframes bounce {
            0%, 80%, 100% {
                transform: scale(0);
                opacity: 0.5;
            }
            40% {
                transform: scale(1);
                opacity: 1;
            }
        }

        /* Particles Background */
        .loader-particles {
            position: absolute;
            width: 100%;
            height: 100%;
            overflow: hidden;
        }

        .particle {
            position: absolute;
            background: #8b5cf6;
            border-radius: 50%;
            opacity: 0;
            animation: float 6s infinite;
        }

        .particle:nth-child(1) {
            width: 4px;
            height: 4px;
            left: 10%;
            animation-delay: 0s;
        }

        .particle:nth-child(2) {
            width: 6px;
            height: 6px;
            left: 30%;
            animation-delay: 1s;
        }

        .particle:nth-child(3) {
            width: 5px;
            height: 5px;
            left: 50%;
            animation-delay: 2s;
        }

        .particle:nth-child(4) {
            width: 4px;
            height: 4px;
            left: 70%;
            animation-delay: 1.5s;
        }

        .particle:nth-child(5) {
            width: 7px;
            height: 7px;
            left: 90%;
            animation-delay: 0.5s;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) scale(0);
                opacity: 0;
            }
            50% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100vh) scale(1);
                opacity: 0;
            }
        }

        /* Main Content (Hidden initially) */
        .main-content {
            opacity: 0;
            transition: opacity 0.5s ease;
        }

        .main-content.visible {
            opacity: 1;
        }

        /* Demo Content */
        .demo-section {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            color: white;
            text-align: center;
            padding: 2rem;
        }

        .demo-content h1 {
            font-size: 3rem;
            margin-bottom: 1rem;
            background: linear-gradient(90deg, #8b5cf6, #a78bfa);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .demo-content p {
            font-size: 1.2rem;
            color: #a0a0a0;
        }

        @media (max-width: 768px) {
            .loader-logo-container {
                width: 120px;
                height: 120px;
            }

            .loader-ring {
                width: 150px;
                height: 150px;
            }

            .loader-ring:nth-child(2) {
                width: 120px;
                height: 120px;
            }

            .loader-logo {
                width: 80px;
                height: 80px;
            }

            .loader-text {
                font-size: 1.2rem;
            }

            .loader-progress {
                width: 250px;
            }

            .demo-content h1 {
                font-size: 2rem;
            }

            .demo-content p {
                font-size: 1rem;
            }
        }