:root {
            --dark-bg: #121212;
            --card-bg: #1E1E1E;
            --text-primary: #FFFFFF;
            --text-secondary: #BBBBBB;
            --accent-yellow: #FFD700;
            --accent-red: #f7051f;
            --accent-blue: #3B82F6;
            --gradient: linear-gradient(135deg, var(--accent-yellow), var(--accent-red));
        }
        
        /* Animated Background */
        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }
        
        /* Preloader Styles */
         #preloader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: var(--dark-bg);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            z-index: 9999;
            transition: opacity 0.5s ease;
        }
        
        #preloader.fade-out {
            opacity: 0;
        }
        
        .ai-loader {
            font-size: 5rem;
            color: #f8f9f9;
            position: relative;
            animation: float 2s ease-in-out infinite;
            
        }
        
        .ai-loader::after {
            content: "";
            position: absolute;
            width: 100%;
            height: 100%;
            top: 0;
            left: 0;
            background: radial-gradient(circle, var(--accent-yellow) 0%, transparent 70%);
            opacity: 0.3;
            border-radius: 50%;
            animation: pulse 2s ease-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
        }
        
        @keyframes pulse {
            0% { transform: scale(0.8); opacity: 0.3; }
            50% { transform: scale(1.2); opacity: 0.1; }
            100% { transform: scale(0.8); opacity: 0.3; }
        }
        
        .loader-text {
            font-family: 'Hind Siliguri', sans-serif;
            color: var(--accent-yellow);
            margin-top: 30px;
            font-size: 1.5rem;
            animation: textPulse 2s ease infinite;
        }
        
        @keyframes textPulse {
            0%, 100% { opacity: 0.8; transform: scale(1); }
            50% { opacity: 1; transform: scale(1.05); }
        }
        
        /* Base Styles */
        body {
            font-family: 'Hind Siliguri', sans-serif;
            margin: 0;
            padding: 0;
            color: var(--text-primary);
            line-height: 1.6;
            background: var(--dark-bg);
            background-size: 400% 400%;
            animation: gradientBG 15s ease infinite;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        section {
            padding: 2rem 0;
        }
        
        h1, h2, h3 {
            font-weight: 700;
        }
        
        /* Hero Section */
        .hero {
            background: var(--gradient);
            color: var(--dark-bg);
            padding: 5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .hero::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
            z-index: 1;
        }
        
        .hero-content {
            position: relative;
            z-index: 2;
        }
        
        .hero h1 {
            font-size: 2.8rem;
            margin-bottom: 1.5rem;
            line-height: 1.3;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
        }
        
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 2rem;
            font-weight: 500;
        }
        
        /* Content Cards */
        .card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 2rem;
            margin-bottom: 1.5rem;
            box-shadow: 0 8px 25px rgba(0,0,0,0.3);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border-left: 4px solid var(--accent-yellow);
        }
        
        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.4);
        }
        
        /* Checklist */
        .checklist {
            list-style: none;
            padding: 0;
        }
        
        .checklist li {
            padding: 0.5rem 0;
            position: relative;
            padding-left: 2rem;
            color: var(--text-secondary);
        }
        
        .checklist li::before {
            content: "✓";
            color: var(--accent-yellow);
            font-weight: bold;
            position: absolute;
            left: 0;
        }
        
        /* CTA Button */
.cta-button {
    display: block;
    background: var(--accent-red);
    color: var(--dark-bg);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 77, 77, 0.4);
    border: none;
    cursor: pointer;
    margin: 1.5rem auto 0; /* Top margin + horizontal auto */
    width: fit-content;
    max-width: 100%; /* Prevents overflow on mobile */
    text-align: center;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 77, 77, 0.6);
    background: #FF3333;
}
        
        /* Pricing Section */
        .pricing-section {
            background: var(--card-bg);
            padding: 4rem 0;
            text-align: center;
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
        }
        
        .pricing-card {
            background: var(--dark-bg);
            text-align: center;
            border-radius: 12px;
            padding: 3rem;
            max-width: 600px;
            margin: 0 auto;
            box-shadow: 0 15px 35px rgba(0,0,0,0.2);
            position: relative;
            overflow: hidden;
            border: 2px solid var(--accent-yellow);
        }
        
        .pricing-card::before {
            content: "LIMITED OFFER";
            position: absolute;
            top: 20px;
            right: -45px;
            background: var(--accent-red);
            color: var(--dark-bg);
            padding: 5px 50px;
            transform: rotate(45deg);
            font-size: 0.8rem;
            font-weight: bold;
        }
        
        .price {
            margin: 2rem 0;
        }
        
        .old-price {
            text-decoration: line-through;
            color: #757575;
            font-size: 1.5rem;
        }
        
        .new-price {
            font-size: 3.5rem;
            font-weight: 700;
            color: var(--accent-yellow);
            margin: 0.5rem 0;
        }
        
        .price-details {
            margin: 2rem 0;
        }
        
        .price-feature {
            display: flex;
            align-items: center;
            margin: 1rem 0;
            text-align: left;
            padding-left: 2rem;
            color: var(--text-secondary);
        }
        
        .price-feature::before {
            content: "✓";
            color: var(--accent-yellow);
            font-weight: bold;
            margin-right: 1rem;
            font-size: 1.2rem;
        }
        
        /* Course Image in Pricing Box */
        .course-image {
            width: 100%;
            max-width: 200px;
            border-radius: 8px;
            margin: 0 auto 1.5rem;
            display: block;
            border: 3px solid var(--accent-yellow);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }
        
        /* Unique Feature - Hover Glow */
        .glow-on-hover {
            transition: box-shadow 0.3s ease;
        }
        
        .glow-on-hover:hover {
            box-shadow: 0 0 15px var(--accent-yellow);
        }
        
        /* Responsive Design */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2.2rem;
            }
            
            section {
                padding: 1.5rem 0;
            }
            
            .card {
                padding: 1.5rem;
            }
            
            .new-price {
                font-size: 2.5rem;
            }
            
            .pricing-card {
                padding: 2rem 1.5rem;
            }
            
            .pricing-card::before {
                right: -55px;
                font-size: 0.7rem;
                padding: 3px 40px;
            }
            
            .price-feature {
                padding-left: 1.5rem;
                font-size: 0.95rem;
            }
        }