* {
            font-family: 'Vazirmatn', sans-serif;
        }
        
        /* Performance optimizations */
        * {
            box-sizing: border-box;
        }
        
        body {
            user-select: none;
            overflow-x: hidden;
            scroll-behavior: smooth;
        }
        
        /* Advanced gradient backgrounds */
        .gradient-bg {
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
            position: relative;
        }
        
        .gradient-bg::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                        radial-gradient(circle at 80% 20%, rgba(147, 51, 234, 0.1) 0%, transparent 50%);
            pointer-events: none;
        }
        
        /* Advanced card animations */
        .card-advanced {
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            transform-style: preserve-3d;
            position: relative;
            overflow: hidden;
        }
        
        .card-advanced::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            transition: left 0.6s ease;
        }
        
        .card-advanced:hover::before {
            left: 100%;
        }
        
        .card-advanced:hover {
            transform: translateY(-10px) rotateX(5deg) scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }
        
        /* Premium button effects */
        .btn-premium {
            background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
            transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            position: relative;
            overflow: hidden;
        }
        
        .btn-premium::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            background: rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            transform: translate(-50%, -50%);
            transition: width 0.6s ease, height 0.6s ease;
        }
        
        .btn-premium:hover::before {
            width: 300px;
            height: 300px;
        }
        
        .btn-premium:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 15px 30px rgba(59, 130, 246, 0.4);
        }
        
        .btn-premium:active {
            transform: translateY(-1px) scale(1.02);
        }
        
        /* Advanced text gradient */
        .text-gradient-advanced {
            background: linear-gradient(135deg, #1e40af 0%, #3b82f6 50%, #06b6d4 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            background-size: 200% 200%;
            animation: gradientShift 3s ease-in-out infinite;
        }
        
        @keyframes gradientShift {
            0%, 100% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
        }
        
        /* Premium phone mockup */
        .phone-premium {
            width: 280px;
            height: 560px;
            background: linear-gradient(145deg, #1f2937, #374151, #4b5563);
            border-radius: 35px;
            padding: 25px;
            box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
            position: relative;
            transition: all 2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        
        .phone-premium::before {
            content: '';
            position: absolute;
            top: 15px;
            left: 50%;
            transform: translateX(-50%);
            width: 100px;
            height: 4px;
            background: linear-gradient(90deg, #6b7280, #9ca3af, #6b7280);
            border-radius: 2px;
        }
        
        .phone-premium:hover {
            /*transform: perspective(400px) rotateX(120deg) rotateY(180deg);
            box-shadow: 0 35px 70px rgba(0, 0, 0, 0.4);*/
            filter: invert(100%) hue-rotate(180deg);
        }
        
        .screen-premium {
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, #0f172a, #1e293b, #334155);
            border-radius: 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            position: relative;
            overflow: hidden;
        }
        
        .screen-premium::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at center, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
        }
        
        /* Advanced floating animation */
        .float-advanced {
            animation: floatAdvanced 4s ease-in-out infinite;
        }
        
        @keyframes floatAdvanced {
            0%, 100% { 
                transform: translateY(0px) rotateZ(0deg); 
            }
            25% { 
                transform: translateY(-15px) rotateZ(1deg); 
            }
            50% { 
                transform: translateY(-25px) rotateZ(0deg); 
            }
            75% { 
                transform: translateY(-15px) rotateZ(-1deg); 
            }
        }
        
        /* Particle system */
        .particles-container {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            overflow: hidden;
        }
        
        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.8), transparent);
            border-radius: 50%;
            animation: particleFloat 8s linear infinite;
        }
        
        @keyframes particleFloat {
            0% {
                transform: translateY(100vh) translateX(0) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100px) translateX(100px) rotate(360deg);
                opacity: 0;
            }
        }
        
        /* Scroll reveal animations */
        .reveal-up {
            opacity: 0;
            transform: translateY(50px);
            transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        
        .reveal-up.revealed {
            opacity: 1;
            transform: translateY(0);
        }
        
        .reveal-left {
            opacity: 0;
            transform: translateX(-50px);
            transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        
        .reveal-left.revealed {
            opacity: 1;
            transform: translateX(0);
        }
        
        .reveal-right {
            opacity: 0;
            transform: translateX(50px);
            transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
        }
        
        .reveal-right.revealed {
            opacity: 1;
            transform: translateX(0);
        }
        
        /* Advanced icon animations */
        .icon-bounce {
            animation: iconBounce 2s ease-in-out infinite;
        }
        
        @keyframes iconBounce {
            0%, 100% { transform: scale(1) rotate(0deg); }
            50% { transform: scale(1.1) rotate(5deg); }
        }
        
        /* Glowing effects */
        .glow-blue {
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
            transition: box-shadow 0.3s ease;
        }
        
        .glow-blue:hover {
            box-shadow: 0 0 30px rgba(59, 130, 246, 0.5);
        }
        
       
        .loading-bar {
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, #3b82f6, #06b6d4, #3b82f6);
            background-size: 200% 100%;
            animation: loadingShine 2s ease-in-out infinite;
        }
        
        @keyframes loadingShine {
            0% { background-position: -200% 0; }
            100% { background-position: 200% 0; }
        }
        
       
        .section-padding {
            padding: 5rem 0;
        }
        
        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
            
            .phone-premium {
                width: 220px;
                height: 440px;
                padding: 20px;
            }
            
            .card-advanced:hover {
                transform: translateY(-5px) scale(1.01);
            }
        }
        
       
        .will-change-transform {
            will-change: transform;
        }
        
        .gpu-accelerated {
            transform: translateZ(0);
            backface-visibility: hidden;
            perspective: 1000px;
        }
        
        
        ::-webkit-scrollbar {
            width: 8px;
        }
        
        ::-webkit-scrollbar-track {
            background: #f1f5f9;
        }
        
        ::-webkit-scrollbar-thumb {
            background: linear-gradient(135deg, #3b82f6, #06b6d4);
            border-radius: 4px;
        }
        
        ::-webkit-scrollbar-thumb:hover {
            background: linear-gradient(135deg, #1d4ed8, #0891b2);
        }