/* hero  section style  */
        header {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        header {
            background: linear-gradient(135deg, #f0f7ff, #e6f0ff);
            color: #334155;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        /* Hero Section Styling */
        .hero-section {
            position: relative;
            overflow: hidden;
            /* max-width: 1200px; */
            width: 100%;
            padding: 5rem 2rem;
            text-align: center;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 24px;
            box-shadow: 0 25px 50px -12px rgba(30, 58, 138, 0.15);
            z-index: 1;
        }

        /* Advanced Background Animation */
        .animated-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }

        .bg-element {
            position: absolute;
            border-radius: 50%;
            background: rgba(59, 130, 246, 0.05);
            animation: float 18s infinite linear;
            opacity: 0;
        }

        .bg-element:nth-child(1) {
            width: 250px;
            height: 250px;
            top: 10%;
            left: 5%;
            animation-duration: 25s;
            background: radial-gradient(circle, rgba(96, 165, 250, 0.08) 0%, transparent 70%);
        }

        .bg-element:nth-child(2) {
            width: 180px;
            height: 180px;
            top: 65%;
            left: 80%;
            animation-delay: 5s;
            animation-duration: 30s;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.07) 0%, transparent 70%);
        }

        .bg-element:nth-child(3) {
            width: 300px;
            height: 300px;
            top: 30%;
            left: 15%;
            animation-delay: 10s;
            animation-duration: 35s;
            background: radial-gradient(circle, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
        }

        @keyframes float {
            0% {
                transform: translate(0, 0) rotate(0deg) scale(0.95);
                opacity: 0;
            }
            20% {
                opacity: 0.3;
            }
            50% {
                transform: translate(-50px, -60px) rotate(180deg) scale(1.05);
            }
            80% {
                opacity: 0.3;
            }
            100% {
                transform: translate(-100px, 0) rotate(360deg) scale(0.95);
                opacity: 0;
            }
        }

        /* Neural Network Animation */
        .neural-pattern {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            opacity: 0.1;
            background: 
                radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.05) 0%, transparent 20%),
                radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.05) 0%, transparent 20%);
        }

        /* Content Styling */
        .hero-content {
            max-width: 800px;
            margin: 0 auto 3rem;
            position: relative;
        }

        .hero-title {
            font-size: clamp(2.8rem, 6vw, 4.2rem);
            font-weight: 800;
            line-height: 1.1;
            margin: 0 0 1.5rem;
            color: #1e293b;
            position: relative;
            display: block;
            animation: fadeInUp 0.8s cubic-bezier(0.22, 0.61, 0.36, 1) forwards;
            opacity: 0;
        }

        .title-gradient {
            background: linear-gradient(120deg, #2563eb, #3b82f6, #60a5fa);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            display: block;
        }

        .hero-subtitle {
            font-size: clamp(1.1rem, 2.2vw, 1.25rem);
            line-height: 1.7;
            margin: 0 auto;
            max-width: 700px;
            color: #64748b;
            position: relative;
            font-weight: 400;
            animation: fadeInUp 0.8s cubic-bezier(0.22, 0.61, 0.36, 1) 0.2s forwards;
            opacity: 0;
        }

        /* Stats Section */
        .stats-section {
            display: flex;
            justify-content: center;
            gap: 2rem;
            margin: 3rem auto;
            flex-wrap: wrap;
            position: relative;
            animation: fadeInUp 0.8s cubic-bezier(0.22, 0.61, 0.36, 1) 0.4s forwards;
            opacity: 0;
        }

        .stat {
            padding: 1.8rem;
            background: rgba(255, 255, 255, 0.7);
            border-radius: 20px;
            backdrop-filter: blur(8px);
            border: 1px solid rgba(226, 232, 240, 0.5);
            min-width: 160px;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            box-shadow: 0 10px 25px rgba(30, 58, 138, 0.05);
            position: relative;
            overflow: hidden;
        }

        .stat::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, #3b82f6, #60a5fa);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .stat:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(30, 58, 138, 0.1);
        }

        .stat:hover::before {
            transform: scaleX(1);
        }

        .stat-number {
            font-size: clamp(2.2rem, 5vw, 2.8rem);
            font-weight: 800;
            margin: 0;
            color: #1e40af;
        }

        .stat-label {
            margin: 0.5rem 0 0;
            font-size: clamp(0.9rem, 2vw, 1rem);
            color: #475569;
            font-weight: 500;
        }

        /* Button Styling */
        .hero-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: clamp(1rem, 2.2vw, 1.2rem) clamp(2.5rem, 4vw, 3rem);
            background: linear-gradient(45deg, #2563eb, #3b82f6);
            color: white;
            border-radius: 16px;
            text-decoration: none;
            font-weight: 600;
            font-size: clamp(1rem, 2.2vw, 1.15rem);
            margin: 1rem auto;
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            box-shadow: 0 12px 20px rgba(37, 99, 235, 0.2);
            z-index: 1;
            letter-spacing: 0.5px;
            animation: fadeInUp 0.8s cubic-bezier(0.22, 0.61, 0.36, 1) 0.6s forwards;
            opacity: 0;
        }

        .hero-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(45deg, #1d4ed8, #2563eb);
            z-index: -1;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .hero-btn:hover {
            transform: translateY(-4px) scale(1.02);
            box-shadow: 0 15px 30px rgba(37, 99, 235, 0.3);
        }

        .hero-btn:hover::before {
            opacity: 1;
        }

        .hero-btn:active {
            transform: translateY(2px);
        }

        .hero-btn i {
            margin-right: 10px;
            transition: transform 0.3s ease;
        }

        .hero-btn:hover i {
            transform: translateX(5px);
        }

        /* Features Container */
        .features-container {
            display: flex;
            justify-content: center;
            gap: 1.8rem;
            margin-top: 4rem;
            flex-wrap: wrap;
            position: relative;
            animation: fadeInUp 0.8s cubic-bezier(0.22, 0.61, 0.36, 1) 0.8s forwards;
            opacity: 0;
        }

        .feature {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.8rem;
            max-width: 220px;
            padding: 1.8rem 1.5rem;
            background: rgba(255, 255, 255, 0.8);
            border-radius: 20px;
            backdrop-filter: blur(6px);
            border: 1px solid rgba(226, 232, 240, 0.5);
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            box-shadow: 0 8px 20px rgba(30, 58, 138, 0.05);
        }

        .feature:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 30px rgba(30, 58, 138, 0.1);
            background: rgba(255, 255, 255, 0.95);
        }

        .feature-icon {
            width: 70px;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, #dbeafe, #eff6ff);
            border-radius: 18px;
            color: #2563eb;
            font-size: 1.8rem;
            transition: all 0.3s ease;
        }

        .feature:hover .feature-icon {
            transform: scale(1.1);
            background: linear-gradient(135deg, #bfdbfe, #dbeafe);
        }

        .feature-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: #1e293b;
            margin-top: 0.5rem;
        }

        .feature-desc {
            font-size: 0.9rem;
            color: #64748b;
            line-height: 1.5;
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                transform: translateY(30px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        @keyframes floatUpDown {
            0% { transform: translateY(0); }
            50% { transform: translateY(-15px); }
            100% { transform: translateY(0); }
        }

        /* Responsive Design */
        @media (max-width: 900px) {
            .hero-section {
                padding: 4rem 1.5rem;
            }
            
            .stats-section {
                gap: 1.2rem;
            }
            
            .stat {
                min-width: 140px;
                padding: 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.5rem;
            }
            
            .hero-subtitle {
                font-size: 1.1rem;
            }
            
            .stats-section {
                flex-direction: column;
                align-items: center;
                gap: 1.2rem;
                margin: 2.5rem auto;
            }
            
            .stat {
                width: 80%;
                max-width: 280px;
            }
            
            .features-container {
                gap: 1.2rem;
            }
            
            .feature {
                max-width: 100%;
                width: 100%;
                flex-direction: row;
                text-align: left;
                padding: 1.5rem;
            }
            
            .feature-icon {
                flex-shrink: 0;
            }
            
            .feature-content {
                padding-left: 1rem;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 15px;
            }
            
            .hero-section {
                padding: 3rem 1.2rem;
                border-radius: 20px;
            }
            
            .hero-title {
                font-size: 2.2rem;
            }
            
            .stat {
                padding: 1.3rem;
            }
            
            .feature {
                padding: 1.3rem;
            }
            
            .hero-btn {
                width: 100%;
                max-width: 300px;
            }
        }


/* Facts Container */
.facts-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 4rem;
    flex-wrap: wrap;
}

.facts {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.facts:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.facts i {
    color: #a5b4fc;
    font-size: 1rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .hero-section {
        padding: 4rem 1.5rem 6rem;
    }
    
    .stats-section {
        gap: 1rem;
    }
    
    .stat {
        min-width: 120px;
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .facts-container {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title, .hero-title1 {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .stats-section {
        flex-direction: column;
        align-items: center;
    }
}

/* Feature Intro */
.features-section {
    background: linear-gradient(135deg, #f5faff, #ffffff);
    padding: 80px 20px;
    text-align: center;
    font-family: 'Segoe UI', sans-serif;
    border-bottom: 1px solid #e0e0e0;
}

.feature-intro h1 {
    font-size: 40px;
    line-height: 1.3;
    margin-bottom: 20px;
    color: #222;
}

.gradient-text {
    background: linear-gradient(90deg, #3f82ff, #8f5eff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    display: inline-block;
}


.feature-intro p {
    font-size: 18px;
    color: #555;
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
    padding: 0 10px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .feature-intro h1 {
        font-size: 30px;
    }

    .feature-intro p {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .features-section {
        padding: 60px 15px;
    }

    .feature-intro h1 {
        font-size: 26px;
    }

    .feature-intro p {
        font-size: 15px;
    }
}

/* Feature Container */
:root {
            --font-family-main: 'Inter', sans-serif;
            
            /* Enhanced Color Palette */
            --color-bg-start: #e0e7ff;
            --color-bg-end: #f0f4f8;
            --color-card-bg: rgba(255, 255, 255, 0.7);
            --color-text-primary: #1e293b;
            --color-text-secondary: #475569;
            --color-accent: #4f46e5;
            --color-accent-dark: #4338ca;
            
            /* Badge Colors */
            --color-badge-free: #0ea5e9;
            --color-badge-premium: #a855f7;
            --color-badge-coming: #f59e0b;
            --color-badge-enterprise: #ef4444;
            --color-badge-launched: #22c55e;

            /* Other Variables */
            --card-border-radius: 28px;
            --transition-speed-fast: 0.2s;
            --transition-speed-med: 0.4s;
            --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.04);
            --shadow-hover: 0 15px 35px rgba(79, 70, 229, 0.12);
        }

        /*
        ==============================================
        * Base & Animated Background
        ==============================================
        */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        @keyframes backgroundGradient {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        main {
            font-family: var(--font-family-main);
            background: linear-gradient(-45deg, var(--color-bg-start), var(--color-bg-end), #c7d2fe, #e0e7ff);
            background-size: 400% 400%;
            animation: backgroundGradient 15s ease infinite;
            color: var(--color-text-primary);
            display: flex;
            justify-content: center;
            align-items: flex-start;
            min-height: 100vh;
            padding: 20px;
        }

        /*
        ==============================================
        * Main Features Container & Grid Layout
        ==============================================
        */
        .features-container {
            width: 100%;
            max-width: 1400px;
        }

        .section {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
            padding: 40px 20px;
        }

        /*
        ==============================================
        * Keyframe Animations
        ==============================================
        */
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        @keyframes slideIn {
             from { opacity: 0; transform: translateX(-20px); }
             to { opacity: 1; transform: translateX(0); }
        }

        /*
        ==============================================
        * Card Styling & 3D Tilt Effect
        ==============================================
        */
        .card {
            background: var(--color-card-bg);
            backdrop-filter: blur(10px); /* Frosted glass effect */
            border-radius: var(--card-border-radius);
            padding: 30px;
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.5);
            box-shadow: var(--shadow-light);
            
            /* Transition for the JS tilt effect reset */
            transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.6s cubic-bezier(0.23, 1, 0.32, 1);
            transform-style: preserve-3d; /* Necessary for 3D transforms */
            
            opacity: 0;
            animation: fadeInUp 0.6s ease-out forwards;
        }
        
        .card:hover {
            box-shadow: var(--shadow-hover);
            /* The transform is now handled by JavaScript */
        }
        
        /* Staggered animation for each card */
        .card:nth-child(1) { animation-delay: 0.1s; }
        .card:nth-child(2) { animation-delay: 0.2s; }
        .card:nth-child(3) { animation-delay: 0.3s; }
        .card:nth-child(4) { animation-delay: 0.4s; }
        .card:nth-child(5) { animation-delay: 0.5s; }
        .card:nth-child(6) { animation-delay: 0.6s; }

        /* --- Shine Effect on Hover --- */
        .card::after {
            content: '';
            position: absolute;
            top: 0;
            left: -150%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
            transition: left var(--transition-speed-med) ease-in-out;
        }
        .card:hover::after {
            left: 150%;
        }
        
        /*
        ==============================================
        * Card Content Styling
        ==============================================
        */
        .badge {
            position: absolute;
            top: 20px;
            right: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 50px;
            text-transform: uppercase;
            color: #fff;
            letter-spacing: 0.5px;
            /* All content inside card needs this for the 3D effect */
            transform: translateZ(20px);
        }
        
        .free { background: var(--color-badge-free); }
        .premium { background: var(--color-badge-premium); }
        .coming { background: var(--color-badge-coming); }
        .enterprise { background: var(--color-badge-enterprise); }
        .launched { background: var(--color-badge-launched); }

        .icon img {
            width: 60px;
            height: 60px;
            object-fit: contain;
            margin-bottom: 20px;
            transition: transform var(--transition-speed-med) cubic-bezier(0.25, 1, 0.5, 1);
            transform: translateZ(50px); /* Pushes the icon forward in 3D space */
        }

        .card:hover .icon img {
            transform: translateZ(50px) scale(1.1) rotate(5deg);
        }

        h3, .card > p, .description, ul, .card-accuracy, .btn {
            transform: translateZ(20px); /* Bring all text and buttons forward */
        }

        h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 4px;
            color: var(--color-text-primary);
        }

        .card > p:first-of-type {
            color: var(--color-text-secondary);
            font-weight: 500;
            margin-bottom: 16px;
        }

        .description {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            margin-bottom: 24px;
            min-height: 90px;
        }

        main ul {
            list-style: none;
            margin-bottom: 24px;
        }

        main ul li {
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            color: var(--color-text-secondary);
            font-size: 0.9rem;
            opacity: 0;
            animation: slideIn 0.5s ease-out forwards;
        }
        
        /* Staggered animation for list items on card load */
        .card:nth-child(1) ul li:nth-child(1), .card:nth-child(2) ul li:nth-child(1), .card:nth-child(3) ul li:nth-child(1), .card:nth-child(4) ul li:nth-child(1), .card:nth-child(5) ul li:nth-child(1), .card:nth-child(6) ul li:nth-child(1) { animation-delay: 0.7s; }
        .card:nth-child(1) ul li:nth-child(2), .card:nth-child(2) ul li:nth-child(2), .card:nth-child(3) ul li:nth-child(2), .card:nth-child(4) ul li:nth-child(2), .card:nth-child(5) ul li:nth-child(2), .card:nth-child(6) ul li:nth-child(2) { animation-delay: 0.8s; }
        .card:nth-child(1) ul li:nth-child(3), .card:nth-child(2) ul li:nth-child(3), .card:nth-child(3) ul li:nth-child(3), .card:nth-child(4) ul li:nth-child(3), .card:nth-child(5) ul li:nth-child(3), .card:nth-child(6) ul li:nth-child(3) { animation-delay: 0.9s; }
        .card:nth-child(1) ul li:nth-child(4), .card:nth-child(2) ul li:nth-child(4), .card:nth-child(3) ul li:nth-child(4), .card:nth-child(4) ul li:nth-child(4), .card:nth-child(5) ul li:nth-child(4), .card:nth-child(6) ul li:nth-child(4) { animation-delay: 1.0s; }


       main ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            color: var(--color-accent);
            margin-right: 12px;
            font-size: 0.8rem;
        }

        .card-accuracy {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--color-text-secondary);
            margin-bottom: 20px;
            display: flex;
            align-items: center;
        }

        .card-accuracy i {
            color: var(--color-accent);
            margin-right: 8px;
            font-size: 1rem;
        }
        
        /*
        ==============================================
        * Buttons & Actions
        ==============================================
        */
        .btn {
            display: inline-block;
            width: 100%;
            padding: 14px 20px;
            background: var(--color-accent);
            color: white;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            text-align: center;
            transition: all var(--transition-speed-fast) ease;
            border: none;
            cursor: pointer;
            font-family: var(--font-family-main);
            font-size: 1rem;
        }

        .btn:hover {
            background: var(--color-accent-dark);
            transform: translateZ(20px) scale(1.05); /* Lifts the button slightly */
        }
        
        .btn:active {
            transform: translateZ(20px) scale(0.98); /* Click effect */
        }
        
        .btn-orange { background-color: var(--color-badge-coming); }
        .btn-orange:hover { background-color: #d97706; }

        .btn-alt { background-color: #e5e7eb; color: var(--color-text-primary); }
        .btn-alt:hover { background-color: #d1d5db; }

        /*
        ==============================================
        * Toast Notification
        ==============================================
        */
        #toast {
            position: fixed;
            bottom: -100px;
            left: 50%;
            transform: translateX(-50%);
            background: #2c3e50;
            color: white;
            padding: 14px 24px;
            border-radius: 12px;
            opacity: 0;
            transition: bottom 0.5s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease;
            pointer-events: none;
            z-index: 1000;
            box-shadow: 0 5px 20px rgba(0,0,0,0.2);
            font-weight: 500;
        }

        #toast.show {
            bottom: 30px;
            opacity: 1;
            pointer-events: auto;
        }
        
        /*
        ==============================================
        * Responsive Design
        ==============================================
        */
        @media (max-width: 768px) {
            body { padding: 10px; }
            .section {
                padding: 20px 10px;
                gap: 20px;
                grid-template-columns: 1fr;
            }
            .card { padding: 25px; }
            h3 { font-size: 1.3rem; }
        }