:root {
            --bg-primary: #111;
            --bg-secondary: #18181b;
            --navbar-bg: rgba(24,24,27,0.96);
            --accent-color: #fff;
            --accent-hover: #e5e5e5;
            --text-primary: #fff;
            --text-secondary: #a1a1aa;
            --highlight: #27272a;
            --border-color: #27272a;
            --shadow-bx: 0 2px 24px 0 rgba(0,0,0,0.18);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            color: var(--text-primary);
            background-color: var(--bg-primary);
            line-height: 1.5;
            min-height: 100vh;
            overflow-x: hidden;
            position: relative;
        }

        /* Global Watermark Background */
        .global-watermark {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: -1;
            opacity: 1;
            background:
                radial-gradient(circle at 30% 40%, rgba(255,255,255,0.04) 0%, transparent 60%),
                radial-gradient(circle at 70% 70%, rgba(255,255,255,0.03) 0%, transparent 60%);
            background-size: 200% 200%;
            animation: gradientFlow 30s ease infinite;}

        @keyframes gradientFlow {
            0% { background-position: 0% 0%; }
            25% { background-position: 100% 50%; }
            50% { background-position: 50% 100%; }
            75% { background-position: 0% 50%; }
            100% { background-position: 0% 0%; }
        }



        /* Hero Section */
        .hero {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            padding: 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            background: none;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.04) 0%, transparent 70%);
            opacity: 1;
            z-index: -1;
            animation: pulse 15s infinite alternate;
        }

        @keyframes pulse {
            0% { transform: scale(1); opacity: 0.04; }
            50% { transform: scale(1.1); opacity: 0.08; }
            100% { transform: scale(1); opacity: 0.04; }
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-top: 20px;
            margin-bottom: 1rem;
             animation: fadeInDown 0.8s ease-out;
        }

        .logo-icon {
            width: 70px;
            height: 60px;
            background: transparent ;
            border-radius: 16px;
            display: flex;
            filter: brightness(1) contrast(1.1) saturate(1.1);
           
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 28px;
              }

        .logo-text {
            font-size: 2.5rem;
            font-weight: 700;
           background: linear-gradient(24deg,rgba(255, 255, 255, 1) 50%, rgb(0, 0, 0) 100%);    
            background-clip: text;
            color: transparent;
        }

        .tagline {
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
            max-width: 800px;
            animation: fadeIn 1s ease-out 0.3s both;
        }

        .highlight {
            color: var(--accent-hover);
            font-weight: 600;
        }

        .cta-button {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 1rem 2rem;
            background: var(--highlight);
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s cubic-bezier(.4,0,.2,1);
            box-shadow: none;
            animation: fadeInUp 0.8s ease-out 0.5s both;
            text-decoration: none;
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .cta-button::before { display: none; }
        .cta-button:hover {
            background: #232326;
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px) scale(1.03);
        }

       /* === Futuristic Feature Cards === */
.feature-section {
    position: relative;
    max-width: 500px;
    margin: 0 auto 5rem;
    padding: 2.5rem 2rem;
    isolation: isolate;
    background: transparent;
}


.feature-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 100%);
    border-radius: 16px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-section::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 16px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.02) 50%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    z-index: -1;
    pointer-events: none;
}

.feature-icon {
    font-size: 2.4rem;
    margin-bottom: 1.5rem;
    color: #fff;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.03) 100%);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
    background: linear-gradient(to right, #fff, #e5e5e5);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    position: relative;
    display: inline-block;
}

.feature-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, rgba(255,255,255,0.8), transparent);
    border-radius: 2px;
    transition: width 0.4s ease;
}

.feature-desc {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.1rem;
    opacity: 0.9;
    transition: all 0.3s ease;
}

/* Hover Effects */
.feature-section:hover::before {
    opacity: 1;
}

.feature-section:hover .feature-icon {
    transform: translateY(-5px);
    background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 100%);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.feature-section:hover .feature-title::after {
    width: 80px;
}

.feature-section:hover .feature-desc {
    opacity: 1;
    transform: translateX(5px);
}

/* Floating Animation */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-section:nth-child(odd) {
    animation: float 8s ease-in-out infinite;
}

.feature-section:nth-child(even) {
    animation: float 8s ease-in-out infinite 2s;
}

/* === Feature Card Row Grouping (Desktop only) === */
.row {
    display: flex;
    flex-direction: row;
    gap: 2rem;
    justify-content: center;
    align-items: stretch;
    margin-left: 2rem;
    margin-right: 2rem;
    margin-bottom: 0;
}
@media (max-width: 768px) {
    .row {
        display: block;
        gap: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .feature-section {
        padding: 2rem 1.5rem;
        margin-bottom: 3.5rem;
        max-width: 90%;
    }
    
    .feature-icon {
        width: 70px;
        height: 70px;
        font-size: 2rem;
    }
    
    .feature-title {
        font-size: 1.3rem;
    }
    
    .feature-desc {
        font-size: 1rem;
    }
    
    .feature-section::before {
        border-radius: 12px;
    }
    
    .feature-section::after {
        border-radius: 20px;
    }
}


        /* Testimonials Section */
        .testimonials {
            padding: 8rem 2rem 6rem;
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
            position: relative;
            background: var(--bg-secondary);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-bx);
        }

        .testimonials::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 0;
            width: 100%;
            height: 100px;
            background: var(--bg-primary);
            z-index: -1;
        }

        .section-title {
            font-size: 2rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
            position: relative;
            display: inline-block;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: -10px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 3px;
            background: var(--highlight);
            border-radius: 3px;
        }

        .section-subtitle {
            color: var(--text-secondary);
            margin-bottom: 3rem;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1rem;
            margin-top: 3rem;
        }

        .testimonial-card {
            background: #18181b;
            border-radius: 18px;
            border: 1px solid var(--border-color);
            padding: 2rem;
            text-align: left;
            position: relative;
            transition: box-shadow 0.2s;
            backdrop-filter: blur(2px);
        }

        .testimonial-card:hover {
            background: #232326;
            border-color: #fff;
            transform: translateY(-3px);
            box-shadow: 0 4px 24px 0 rgba(0,0,0,0.22);
        }

        .testimonial-quote {
            font-style: italic;
            margin-bottom: 1.5rem;
            color: var(--text-primary);
            position: relative;
        }

        .testimonial-quote::before {
            content: '"';
            font-size: 3rem;
            position: absolute;
            top: -20px;
            left: -15px;
            color: #fff;
            opacity: 0.13;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .testimonial-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #232326;
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .author-info {
            display: flex;
            flex-direction: column;
        }

        .author-name {
            font-weight: 600;
            color: var(--text-primary);
        }

        .author-title {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        /* Footer */
        footer {
            background-color: transparent;
            padding: 8rem 2rem 4rem;
            text-align: center;
            position: relative;
            margin-top: -50px;
        }

        footer::before {
            content: '';
            position: absolute;
            top: -1px;
            left: 0;
            width: 100%;
            height: 100px;
            background-color: transparent;
            z-index: -1;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .footer-logo-icon {
            width: 40px;
            height: 40px;
            background: #232326;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
        }

        .footer-logo-text {
            font-size: 1.5rem;
            font-weight: 700;
            background: linear-gradient(to right, #fff, #a1a1aa);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 2rem;
            background-color: transparent;
            margin-bottom: 2rem;
            flex-wrap: wrap;
        }

        .footer-link {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.2s;
            position: relative;
            padding: 0.5rem 0;
        }

        .footer-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--highlight);
            transition: width 0.2s;
        }

        .footer-link:hover {
            color: #fff;
        }

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

        .social-links {
            display: flex;
            justify-content: center;
            gap: 1.5rem;
            text-decoration: none !important;
            margin-bottom: 2rem;
        }

.social-links a {
    text-decoration: none !important;
}


        .social-link {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: #232326;
            color: #fff;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s, color 0.2s;
        }

        .social-link:hover {
            background: #fff;
            color: #18181b;
        }

        .copyright {
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .tagline {
                font-size: 1.2rem;
            }
            
            .features {
                grid-template-columns: 1fr;
                margin-top: 0;
                padding: 4rem 1rem;
            }

            .testimonials {
                padding: 6rem 1rem 4rem;
            }

            footer {
                padding: 6rem 1rem 3rem;
            }
        }

        /* Scroll reveal animation */
        .animate-on-scroll {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease-out;
        }

        .animate-on-scroll.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* --- Begin PrepMaster Navbar CSS --- */
        .navbar .app-name {
            position: static;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-right: 22px;
        }
        .navbar .app-name h1 {
            margin: 0;
            font-size: 1.4rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .navbar .app-name i {
            color: #fff;
            font-size: 1.4rem;
        }
        .navbar .nav-separator {
            width: 1.5px;
            height: 32px;
            background: var(--border-color);
            margin: 0 18px 0 0;
            align-self: center;
            border-radius: 2px;
        }

   

    .navbar {
      background-color: rgba(32, 32, 32, 0.582); /* Glassy background color */
      border-radius: 50px;
      opacity: 1;
      padding: 12px 25px;
      margin: 20px auto 0;
      display: flex;
      position: fixed;
      top: 20px;
      left: 50%;
      transform: translateX(-50%);
      z-index: 100;
      backdrop-filter: blur(10px); /* Increased blur for glass effect */
      -webkit-backdrop-filter: blur(10px); /* For Safari */
      border: 1px solid rgba(255, 255, 255, 0.1); /* Brighter border for glass effect */
      box-shadow: 0 8px 30px rgba(0, 0, 0, 0.05); /* Reduced shadow intensity */
      max-width: fit-content;
      transition: top 0.3s ease;
    }
        .nav-links {
            display: flex;
            gap: 5px;
        }
        .navbar a {
            display: flex;
            align-items: center;
            padding: 10px 18px;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 14px;
            border-radius: 30px;
            font-weight: 500;
            transition: all 0.2s;
            gap: 8px;
        }
        .navbar a i {
            font-size: 15px;
            transition: all 0.2s;
        }
        .navbar a:hover, .navbar a.active {
            color: #fff;
            background-color: var(--highlight);
        }
        .navbar a:hover i, .navbar a.active i {
            color: #fff;
        }
        /* Mobile Navbar (Bottom) */
    .mobile-navbar {
      display: none;
      position: fixed;
      bottom: 20px;
      left: 0;
      right: 0;
      margin-left: auto;
      margin-right: auto;
       background-color: rgba(32, 32, 32, 0.582);
      border-radius: 50px;
        border: 1px solid rgba(255, 255, 255, 0.1);
      box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
      z-index: 100;
      padding: 12px 25px;
      width: calc(100vw - 32px);
      max-width: 480px;
      min-width: 220px;
      margin-bottom: 0;
      opacity: 1;
      backdrop-filter: blur(20px); /* Increased blur for glass effect */
      -webkit-backdrop-filter: blur(20px); /* For Safari */
      transition: bottom 0.3s ease;
    }
        .mobile-nav-links {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            gap: 0;
        }
        .mobile-nav-links a {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            flex: 1 1 0;
            min-width: 0;
            padding: 10px 0;
            color: var(--text-secondary);
            text-decoration: none;
            font-size: 12px;
            border-radius: 50px;
            font-weight: 500;
            transition: all 0.2s;
            gap: 4px;
            background: none;
            max-width: unset;
        }
        .mobile-nav-links a i {
            font-size: 18px;
            margin-bottom: 0;
            transition: all 0.2s;
        }
        .mobile-nav-links a span {
            font-size: 11px;
            margin-top: 2px;
        }
        .mobile-nav-links a:hover, .mobile-nav-links a.active {
            color: #fff;
            background-color: rgba(61, 61, 61, 0.39);
        }
        .mobile-nav-links a.active i, .mobile-nav-links a:hover i {
            color: #fff;
            transform: none;
        }
        @media (max-width: 992px) {
            .navbar {
                padding: 10px 20px;
            }
            .navbar a {
                padding: 8px 15px;
                font-size: 13px;
            }
        }
        @media (max-width: 768px) {
            .navbar, .app-name {
                display: none;
            }
            .mobile-navbar {
                display: flex;
                justify-content: center;
                align-items: center;
            }
        }
        @media (min-width: 769px) { .mobile-only { display: none !important; } }
        @media (max-width: 768px) { .mobile-only { display: flex !important; } }
        /* --- End PrepMaster Navbar CSS --- */
  
        /* === COLORFUL FLOATING GRADIENT CARDS === */
.apps-section {
    position: relative;
    width: 420px;
    min-width: 320px;
    max-width: 500px;
    /* height: 400px; */ /* REMOVED FIXED HEIGHT */
    min-height: 260px;
    /* max-height: 420px; */ /* REMOVED FIXED MAX HEIGHT */
    margin: 0 auto 5rem;
    padding: 2.5rem 2rem;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
     overflow: hidden;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    z-index: 1;
      cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    box-sizing: border-box;
}
@media (max-width: 900px) {
    .apps-section {
        width: 90vw;
        min-width: 0;
        max-width: 98vw;
        /* height: 380px; */ /* REMOVED FIXED HEIGHT */
        min-height: 180px;
        /* max-height: 340px; */ /* REMOVED FIXED MAX HEIGHT */
        padding: 2rem 1rem;
    }
}

/* Card 1 - Orange/Gold */
.apps-section.card-quiz {
    background: linear-gradient(135deg, rgba(243, 185, 74, 0.08) 0%, rgba(255, 193, 87, 0.06) 50%, rgba(243, 156, 18, 0.06) 100%);
}

.apps-section.card-quiz:hover {
    background: linear-gradient(135deg, rgba(243, 185, 74, 0.05) 0%, rgba(255, 193, 87, 0.04) 50%, rgba(243, 156, 18, 0.04) 100%);
    box-shadow: 0 8px 20px rgba(243, 185, 74, 0.1);
    transform: translateY(-6px) scale(1.01);
}

.apps-section.card-quiz::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(243, 185, 74, 0.15) 0%,   /* #f3b94a (gold) */
        rgba(255, 193, 87, 0.1) 50%,    /* #ffc157 (light gold/yellow) */
        rgba(243, 156, 18, 0.1) 100%    /* #f39c12 (deep orange/gold) */
    );
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: -1;
    
}

.apps-section.card-quiz::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(
        135deg,
        #f3b94a,  /* gold */
        #ffc157,  /* light gold/yellow */
        #f39c12   /* deep orange/gold */
    );
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
        box-shadow: 0 4px 12px rgba(243, 185, 74, 0.4); /* Add this line */
}

.apps-section.card-quiz .apps-icon {
    background: linear-gradient(
        135deg,
        rgba(243, 185, 74, 0.2),   /* #f3b94a (gold) */
        rgba(255, 193, 87, 0.15)    /* #ffc157 (light gold/yellow) */
    );
    box-shadow: 0 5px 20px rgba(243, 185, 74, 0.1);  /* #f3b94a (gold) */
}

.apps-section.card-quiz:hover .apps-icon {
    box-shadow: 0 8px 30px rgba(243, 185, 74, 0.3);  /* #f3b94a (gold) */
}

.apps-section.card-quiz .apps-title::after {
    background: linear-gradient(90deg, #f3b94a, #da8300);  /* gold, light gold/yellow */
}

/* Card 2 - purple */
.apps-section.card-ai {
    background: linear-gradient(135deg, rgba(112, 50, 218, 0.08) 0%, rgba(144, 86, 234, 0.06) 50%, rgba(112, 50, 218, 0.06) 100%);
}

.apps-section.card-ai:hover {
    background: linear-gradient(135deg, rgba(112, 50, 218, 0.05) 0%, rgba(144, 86, 234, 0.04) 50%, rgba(112, 50, 218, 0.04) 100%);
    box-shadow: 0 8px 20px rgba(112, 50, 218, 0.1);
    transform: translateY(-6px) scale(1.01);
}

.apps-section.card-ai::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(112, 50, 218, 0.15) 0%,
        rgba(144, 86, 234, 0.1) 50%,
        rgba(112, 50, 218, 0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: -1;
}

.apps-section.card-ai::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(
        135deg,
        #7032DA,
        #9056EA,
        #7032DA
    );
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    box-shadow: 0 4px 12px rgba(112, 50, 218, 0.4);
}

.apps-section.card-ai .apps-icon {
    background: linear-gradient(
        135deg,
        rgba(112, 50, 218, 0.2),
        rgba(144, 86, 234, 0.15)
    );
    box-shadow: 0 5px 20px rgba(112, 50, 218, 0.1);
}

.apps-section.card-ai:hover .apps-icon {
    box-shadow: 0 8px 30px rgba(112, 50, 218, 0.3);
}

.apps-section.card-ai .apps-title::after {
    background: linear-gradient(90deg, #7032DA, #7032DA);
}

/* Card 3 */
.apps-section.card-prep {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(99, 102, 241, 0.06) 50%, rgba(99, 102, 241, 0.06) 100%);
}

.apps-section.card-prep:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(99, 102, 241, 0.04) 50%, rgba(99, 102, 241, 0.04) 100%);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.1);
    transform: translateY(-6px) scale(1.01);
}

.apps-section.card-prep::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(99, 102, 241, 0.15) 0%,
        rgba(99, 102, 241, 0.1) 50%,
        rgba(99, 102, 241, 0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: -1;
}

.apps-section.card-prep::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(
        135deg,
        #6366f1,
        #6366f1,
        #6366f1
    );
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.apps-section.card-prep .apps-icon {
    background: linear-gradient(
        135deg,
        rgba(99, 102, 241, 0.2),
        rgba(99, 102, 241, 0.15)
    );
    box-shadow: 0 5px 20px rgba(99, 102, 241, 0.1);
}

.apps-section.card-prep:hover .apps-icon {
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.3);
}

.apps-section.card-prep .apps-title::after {
    background: linear-gradient(90deg, #6366f1, #6366f1);
}

/* Card 4 */
.apps-section.card-store::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(var(--card1-color1-rgb), 0.15) 0%,
        rgba(var(--card1-color2-rgb), 0.1) 50%,
        rgba(var(--card1-color3-rgb), 0.1) 100%
    );
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: -1;
}

.apps-section.card-store::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(
        135deg,
        var(--card1-color1),
        var(--card1-color2),
        var(--card1-color3)
    );
    -webkit-mask: 
        linear-gradient(#fff 0 0) content-box, 
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.apps-section.card-store .apps-icon {
    background: linear-gradient(
        135deg,
        rgba(var(--card1-color1-rgb), 0.2),
        rgba(var(--card1-color2-rgb), 0.15)
    );
    box-shadow: 0 5px 20px rgba(var(--card1-color1-rgb), 0.1);
}

.apps-section.card-store:hover .apps-icon {
    box-shadow: 0 8px 30px rgba(var(--card1-color1-rgb), 0.3);
}

.apps-section.card-store .apps-title::after {
    background: linear-gradient(90deg, var(--card1-color1), var(--card1-color2));
}

/* Common Feature Card Styles */
.apps-icon {
    font-size: 2.8rem;
    margin-bottom: 2rem;
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border-radius: 22px;
    transition: all 0.4s ease;
}



.apps-title {
    font-size: 1.7rem;
    margin-bottom: 1.5rem;
    color: white;
    font-weight: 700;
    background: linear-gradient(90deg, #fff, #e0e0e0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
}

.apps-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 3px;
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.apps-desc {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 1.15rem;
    font-weight: 400;
    transition: all 0.4s ease;
}

/* --- Hover Effects --- */
.apps-section:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 15px 40px rgba(0, 0, 0, 0.3),
        inset 0 0 0 1px rgba(255, 255, 255, 0.15);
}

.apps-section:hover::before {
    opacity: 0.6;
}

.apps-section:hover::after {
    opacity: 0.5;
}


.apps-section:hover .apps-icon {
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
    transform: translateY(-5px) scale(1.05);
}


.apps-section:hover .apps-title::after {
    width: 100%;
}

.apps-section:hover .apps-desc {
    transform: translateX(5px);
    color: white;
}

/* Floating Animation */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

.apps-section {
    animation: float 8s ease-in-out infinite;
}

.apps-section.card-ai {
    animation-delay: 1s;
}
.apps-section.card-prep {
    animation-delay: 2s;
}
.apps-section.card-store {
    animation-delay: 3s;
}

/* Responsive */
@media (max-width: 768px) {
    .apps-section {
        padding: 2.5rem 2rem;
        margin-bottom: 4rem;
        max-width: 90%;
    }
    
    .apps-icon {
        width: 70px;
        height: 70px;
        font-size: 2.4rem;
    }
    
    .apps-title {
        font-size: 1.5rem;
    }
    
    .apps-desc {
        font-size: 1.05rem;
    }
}

  /* Arrow icon at top right of feature cards */
.card-arrow {
    position: absolute;
    top: 25px;
    right: 30px;
    font-size: 1.35rem;
    color: rgba(255,255,255,0.32);
    opacity: 0.7;
    pointer-events: none;
    transition: color 0.2s, opacity 0.2s, transform 0.3s;
    z-index: 2;
}
.apps-section:hover .card-arrow {
    color: #cfcfcf;
    opacity: 1;
    transform: translateX(4px) scale(1.12);
}

 /* Add improved spacing for main content */
        main {
            max-width: 700px;
            margin: 100px auto 0 auto;
            padding: 2rem 1.5rem 3rem 1.5rem;
            background: transparent;
            border-radius: 18px;
            line-height: 1.7; /* Increased line height */
        }
        @media (max-width: 900px) {
            main {
                max-width: 98vw;
                margin: 90px 1vw 0 1vw;
                padding: 1.2rem 0.7rem 2.5rem 0.7rem;
            }
        }

     

        main p, main ul, main ol {
            margin-bottom: 1.1em; /* More space between paragraphs/lists */
        }
        main h2, main h3 {
            margin-top: 1.2em;
            margin-bottom: 0.7em;
            line-height: 1.25;
        }
        main ul, main ol {
            padding-left: 1.5em;
        }
        main li {
            margin-bottom: 0.5em;
        }

             .heading {
        font-size: 3rem;
        margin-bottom: 1rem;
        margin-top: 0.5rem;
        text-align: center;
        }

        /* Minimal Gray Line Scrollbar */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: transparent;
        }

        ::-webkit-scrollbar-thumb {
            background: rgba(128, 128, 128, 0.4);
            border-radius: 3px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: rgba(128, 128, 128, 0.6);
        }

        /* Firefox */
        * {
            scrollbar-width: thin;
            scrollbar-color: rgba(128, 128, 128, 0.4) transparent;
        }