@keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes slideIn {
            from {
                transform: translateX(-50px);
                opacity: 0;
            }

            to {
                transform: translateX(0);
                opacity: 1;
            }
        }

        @keyframes pulse {
            0% {
                transform: scale(1);
            }

            50% {
                transform: scale(1.05);
            }

            100% {
                transform: scale(1);
            }
        }

        @keyframes float {
            0% {
                transform: translateY(0px);
            }

            50% {
                transform: translateY(-10px);
            }

            100% {
                transform: translateY(0px);
            }
        }

        @keyframes spin {
            from {
                transform: rotate(0deg);
            }

            to {
                transform: rotate(360deg);
            }
        }

        .animate-fadeIn {
            animation: fadeIn 0.8s ease-out forwards;
        }

        .animate-slideIn {
            animation: slideIn 0.8s ease-out forwards;
        }

        .animate-pulse-slow {
            animation: pulse 3s infinite;
        }

        .animate-float {
            animation: float 6s ease-in-out infinite;
        }

        .animate-spin-slow {
            animation: spin 8s linear infinite;
        }

        .stagger-1 {
            animation-delay: 0.1s;
        }

        .stagger-2 {
            animation-delay: 0.2s;
        }

        .stagger-3 {
            animation-delay: 0.3s;
        }

        .stagger-4 {
            animation-delay: 0.4s;
        }

        .stagger-5 {
            animation-delay: 0.5s;
        }

        .hero-gradient-light {
            background: linear-gradient(135deg, rgba(0, 123, 255, 0.9), rgba(32, 201, 151, 0.8)),
                url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cpath fill='%23ffffff' fill-opacity='0.1' d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z'%3E%3C/path%3E%3C/svg%3E");
        }

        .hero-gradient-dark {
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.9), rgba(16, 185, 129, 0.8)),
                url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100' viewBox='0 0 100 100'%3E%3Cpath fill='%23ffffff' fill-opacity='0.05' d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z'%3E%3C/path%3E%3C/svg%3E");
        }

        .card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .card:hover {
            transform: translateY(-5px);
        }

        .scroll-indicator {
            animation: bounce 2s infinite;
        }

        @keyframes bounce {

            0%,
            20%,
            50%,
            80%,
            100% {
                transform: translateY(0);
            }

            40% {
                transform: translateY(-20px);
            }

            60% {
                transform: translateY(-10px);
            }
        }

        .nav-link {
            position: relative;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: -2px;
            left: 0;
            transition: width 0.3s ease;
        }

        .light .nav-link::after {
            background-color: #007BFF;
        }

        .dark .nav-link::after {
            background-color: #3b82f6;
        }

        .nav-link:hover::after {
            width: 100%;
        }

        /* Theme switch */
        .theme-switch {
            position: relative;
            width: 60px;
            height: 30px;
        }

        .theme-switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #ccc;
            transition: .4s;
            border-radius: 34px;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 22px;
            width: 22px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }

        input:checked+.slider {
            background-color: #3b82f6;
        }

        input:checked+.slider:before {
            transform: translateX(30px);
        }

        .slider:after {
            content: '☀️';
            position: absolute;
            left: 8px;
            top: 5px;
            font-size: 12px;
        }

        input:checked+.slider:after {
            content: '🌙';
            left: auto;
            right: 8px;
        }

        /* Mobile app style */
        .app-frame {
            max-width: 100%;
            margin: 0 auto;
            overflow: hidden;
            border-radius: 20px;
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }

        .app-screen {
            position: relative;
            overflow: hidden;
            border-radius: 20px;
        }

        /* Reveal animations on scroll */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.8s ease;
        }

        .reveal.active {
            opacity: 1;
            transform: translateY(0);
        }

        .reveal-delay-1 {
            transition-delay: 0.1s;
        }

        .reveal-delay-2 {
            transition-delay: 0.2s;
        }

        .reveal-delay-3 {
            transition-delay: 0.3s;
        }