/* إضافة CSS للـ Splash Screen */
        #splashScreen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            z-index: 9999;
            transition: opacity 0.5s ease-in-out;
        }

        #splashScreen.fade-out {
            opacity: 0;
        }

        .splash-logo {
            width: 120px;
            height: 120px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 2rem;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            animation: pulse 2s infinite;
        }

        .splash-logo i {
            font-size: 3rem;
            color: white;
        }

        .splash-title {
            color: white;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            text-align: center;
            animation: slideUp 1s ease-out;
        }

        .splash-subtitle {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2rem;
            text-align: center;
            margin-bottom: 3rem;
            animation: slideUp 1s ease-out 0.2s both;
        }

        .splash-loader {
            display: flex;
            align-items: center;
            gap: 1rem;
            color: white;
            font-size: 1.1rem;
            animation: slideUp 1s ease-out 0.4s both;
        }

        .loader-spinner {
            width: 30px;
            height: 30px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-top: 3px solid white;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        .loading-dots::after {
            content: "";
            animation: dots 1.5s infinite;
        }

        .progress-indicators {
            margin-top: 2rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
        }

        .progress-bar {
            width: 200px;
            height: 4px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 2px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            background: white;
            width: 0%;
            border-radius: 2px;
            transition: width 0.3s ease;
            animation: progressFlow 2s ease-in-out infinite;
        }

        .loading-steps {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.8);
            text-align: center;
            min-height: 20px;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

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

        @keyframes dots {
            0%, 20% { content: ""; }
            40% { content: "."; }
            60% { content: ".."; }
            80%, 100% { content: "..."; }
        }

        @keyframes progressFlow {
            0% { width: 0%; }
            50% { width: 70%; }
            100% { width: 100%; }
        }

        /* إخفاء المحتوى الرئيسي أثناء التحميل */
        body.loading .container,
        body.loading footer {
            display: none;
        }