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

        :root {
            --primary-blue: #3B82F6;
            --primary-red: #EF4444;
            --dark-blue: #1E40AF;
            --light-blue: #F1F5FF;
            --text-dark: #1F2937;
            --text-gray: #6B7280;
            --white: #FFFFFF;
            --off-white: #F9FAFB;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-dark);
            overflow-x: hidden;
            line-height: 1.6;
        }

        /* HEADER */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 0.5rem 2%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        header.scrolled {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .logo img {
            height: 60px;
            width: auto;
        }

        .logo-text {
            font-size: 1.75rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.5px;
            display: none;
        }

        nav {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }

        nav a {
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
        }

        nav a:not(.cta-btn):hover {
            color: var(--primary-blue);
        }

        nav a:not(.cta-btn)::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            transition: width 0.3s ease;
        }

        nav a:not(.cta-btn):hover::after {
            width: 100%;
        }

        .cta-btn {
            background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
            color: white;
            padding: 0.7rem 1.75rem;
            border-radius: 10px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .cta-btn:hover {
            transform: translateY(-2px);
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 6px;
            cursor: pointer;
            z-index: 1001;
            width: 30px;
            height: 24px;
            position: relative;
        }

        .hamburger span {
            display: block;
            height: 3px;
            width: 100%;
            background: var(--text-dark);
            border-radius: 2px;
            transition: all 0.3s ease;
            transform-origin: center;
        }

        .hamburger span:nth-child(1) {
            transform: translateY(0) rotate(0);
        }

        .hamburger span:nth-child(2) {
            transform: translateY(8px) rotate(0);
        }

        .hamburger.active span:nth-child(1) {
            transform: translateY(8px) rotate(45deg);
        }

        .hamburger.active span:nth-child(2) {
            transform: translateY(8px) rotate(-45deg);
        }

        /* HERO SECTION */
        .hero {
            background: linear-gradient(135deg, #F9FAFB 0%, #EEF2FF 100%);
            position: relative;
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 8rem 5% 4rem;
        }


        .hero-content {
            max-width: 900px;
            text-align: center;
            position: relative;
            z-index: 2;
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.8s ease forwards 0.3s;
        }

        .hero h1 {
            font-family: 'Anton', sans-serif;
            font-size: 5.5rem;
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1.5rem;
            color: var(--text-dark);
            letter-spacing: 0px;
          
        }

        .hero p {
            font-size: 1.55rem;
            color: var(--text-gray);
            margin-bottom: 2.5rem;
            line-height: 1.6;
            font-weight: 500;
            letter-spacing: -0.5px;
            text-align: center;
        }

        .hero-buttons {
            display: flex;
            gap: 1.25rem;
            justify-content: center;
            flex-wrap: wrap;
            opacity: 1;
            visibility: visible;
            border-radius: 8px;
        }

        .btn-primary {
            background: var(--text-dark);
            color: white;
            padding: 1.1rem 2.75rem;
            border-radius: 0;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            border: none;
            cursor: pointer;
            position: relative;
            overflow: hidden;
            display: inline-block;
            border: 2px solid var(--text-dark);
            border-radius: 10px;
        }

        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s ease;
        }

        .btn-primary:hover::before {
            left: 100%;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            background: transparent;
            color: var(--text-dark);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-dark);
            padding: 1.1rem 2.75rem;
            border-radius: 0;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            position: relative;
            overflow: hidden;
            display: inline-block;
            border: 2px solid var(--text-dark);
            border-radius: 10px;
        }

        .btn-secondary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1), transparent);
            transition: left 0.5s ease;
        }

        .btn-secondary:hover::before {
            left: 100%;
        }

        .btn-secondary:hover {
            transform: translateY(-3px);
            background: var(--text-dark);
            color: white;
        }

        /* FLOATING ICONS - Using CSS Shapes */
        .floating-icon {
            position: absolute;
            opacity: 0.15;
            
        }

        .floating-icon::before {
            content: '';
            display: block;
            width: 80px;
            height: 80px;
            border-radius: 20px;
            background: linear-gradient(135deg, #0a0f1f, #1a1f35, #2a1835);

        }

        .floating-icon:nth-child(1) {
            top: 15%;
            left: 8%;
            animation-delay: 0s;
        }

        .floating-icon:nth-child(1)::before {
            border-radius: 50%;
        }

        .floating-icon:nth-child(2) {
            top: 25%;
            right: 10%;
            animation-delay: 1.5s;
        }

        .floating-icon:nth-child(3) {
            bottom: 25%;
            left: 12%;
            animation-delay: 3s;
        }

        .floating-icon:nth-child(3)::before {
            border-radius: 15px;
        }

        .floating-icon:nth-child(4) {
            bottom: 35%;
            right: 8%;
            animation-delay: 2s;
        }

        .floating-icon:nth-child(4)::before {
            width: 60px;
            height: 60px;
        }

        .floating-icon:nth-child(5) {
            top: 45%;
            left: 18%;
            animation-delay: 1s;
        }

        .floating-icon:nth-child(5)::before {
            width: 70px;
            height: 70px;
            border-radius: 50%;
        }

        .floating-icon:nth-child(6) {
            top: 55%;
            right: 15%;
            animation-delay: 2.5s;
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px) rotate(0deg);
            }
            50% {
                transform: translateY(-25px) rotate(8deg);
            }
        }

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

        @keyframes morphGradient {
            0%, 100% {
                opacity: 1;
                transform: scale(1) rotate(0deg);
            }
            25% {
                opacity: 0.8;
                transform: scale(1.1) rotate(90deg);
            }
            50% {
                opacity: 0.6;
                transform: scale(1.2) rotate(180deg);
            }
            75% {
                opacity: 0.8;
                transform: scale(1.1) rotate(270deg);
            }
        }

        /* PROBLEM SECTION */
        .problem-section {
            background: var(--light-blue);
            padding: 7rem 5%;
            position: relative;
        }

        @media (min-width: 1024px) {
            .problem-section {
                padding: 9rem 0;
            }

            .problem-section .section-container {
                display: grid;
                grid-template-columns: 1fr 2fr;
                gap: 4rem;
                align-items: start;
            }

            .problem-header {
                position: sticky;
                top: 120px;
            }

            .problem-cards {
                margin-top: 0;
            }
        }

        .section-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .section-pill {
            display: inline-block;
            padding: 0.6rem 1.75rem;
            border: 2px solid rgba(30, 64, 175, 0.2);
            border-radius: 50px;
            font-weight: 600;
            color: var(--dark-blue);
            margin-bottom: 2rem;
            font-size: 0.9rem;
            letter-spacing: 0.5px;
        }

        .section-title {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--dark-blue);
            margin-bottom: 1.5rem;
            line-height: 1.2;
            letter-spacing: -1.5px;
        }

        .section-subtitle {
            font-size: 1.25rem;
            color: var(--text-gray);
            margin-bottom: 3rem;
            max-width: 800px;
            line-height: 1.7;
        }

        .problem-cards {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-top: 4rem;
        }

        .problem-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(59, 130, 246, 0.1);
            border-radius: 24px;
            padding: 2.5rem;
            display: flex;
            gap: 2rem;
            align-items: flex-start;
            opacity: 0;
            transform: translateX(-50px);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .problem-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px; 
            transform: translateX(-100%);
            transition: transform 0.5s ease;
        }

        .problem-card.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .problem-card:nth-child(2) {
            transition-delay: 0.15s;
        }

        .problem-card:nth-child(3) {
            transition-delay: 0.3s;
        }

        .problem-card:hover {
            transform: translateY(-12px);
        }

        .problem-card:hover::before {
            transform: translateX(0);
        }

        .problem-icon {
            width: 72px;
            height: 72px;
            background: rgba(59, 130, 246, 0.1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-size: 2rem;
            color: var(--primary-blue);
        }

        .problem-content h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 0.75rem;
            color: var(--text-dark);
        }

        .problem-content p {
            color: var(--text-gray);
            line-height: 1.7;
            font-size: 1.05rem;
        }

        /* HOW STUDLY FIXES IT */
        .fixes-section {
            background: white;
            padding: 7rem 5%;
            position: relative;
        }

        @media (min-width: 1024px) {
            .fixes-section {
                padding: 9rem 0;
            }

            .fixes-section .section-container {
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 6rem;
                align-items: center;
            }

            .fixes-header {
                display: flex;
                flex-direction: column;
                justify-content: center;
                min-height: 60vh;
                position: sticky;
                top: 120px;
            }

            .feature-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                margin-top: 0;
            }
        }

        .fixes-section .section-title {
            color: var(--text-dark);
        }

        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 4rem;
        }

        .feature-card {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-radius: 24px;
            padding: 2.5rem;
            opacity: 0;
            transform: scale(0.95);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .feature-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(239, 68, 68, 0.05) 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .feature-card.visible {
            opacity: 1;
            transform: scale(1);
        }

        .feature-card:nth-child(2) {
            transition-delay: 0.1s;
        }

        .feature-card:nth-child(3) {
            transition-delay: 0.2s;
        }

        .feature-card:nth-child(4) {
            transition-delay: 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-16px) scale(1.02);
            border-color: rgba(59, 130, 246, 0.2);
        }

        .feature-card:hover::after {
            opacity: 1;
        }

        .feature-icon {
            width: 64px;
            height: 64px;
            margin-bottom: 1.75rem;
            font-size: 2.5rem;
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .feature-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--text-dark);
        }

        .feature-card p {
            color: var(--text-gray);
            line-height: 1.7;
            font-size: 1.05rem;
        }

        /* BUILT FOR STUDENTS */
        .students-section {
            background: var(--off-white);
            padding: 7rem 5%;
            position: relative;
            overflow: hidden;
        }

        @media (min-width: 1024px) {
            .students-section {
                padding: 9rem 0;
            }

            .students-section .section-container {
                display: grid;
                grid-template-columns: 1fr 2fr;
                gap: 5rem;
                align-items: start;
            }

            .students-header {
                position: sticky;
                top: 120px;
            }

            .students-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
                margin-top: 0;
            }
        }

        .students-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            margin-top: 4rem;
        }

        .testimonials {
            opacity: 0;
            transform: translateX(-30px);
            transition: all 0.6s ease;
        }

        .testimonials.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .testimonial-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 20px;
            padding: 2rem;
            margin-bottom: 1.5rem;
            display: flex;
            gap: 1.25rem;
            align-items: flex-start;
            transition: all 0.3s ease;
            position: relative;
        }

        .testimonial-card:hover {
            transform: translateY(-8px);
            border-color: rgba(59, 130, 246, 0.15);
        }

        .testimonial-avatar {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
            flex-shrink: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
        }

        .testimonial-content {
            flex: 1;
        }

        .testimonial-content p {
            color: var(--text-dark);
            font-style: italic;
            margin-bottom: 0.75rem;
            line-height: 1.6;
        }

        .testimonial-name {
            font-weight: 600;
            color: var(--text-gray);
            font-size: 0.9rem;
        }

        .leaderboard {
            opacity: 0;
            transform: translateX(30px);
            transition: all 0.6s ease;
        }

        .leaderboard.visible {
            opacity: 1;
            transform: translateX(0);
        }

        .leaderboard-header {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 24px 24px 0 0;
            padding: 1.75rem;
            font-weight: 700;
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .leaderboard-list {
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-top: none;
            border-radius: 0 0 24px 24px;
        }

        .leaderboard-item {
            padding: 1.25rem 1.75rem;
            display: flex;
            align-items: center;
            gap: 1.25rem;
            transition: all 0.3s ease;
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
        }

        .leaderboard-item:last-child {
            border-bottom: none;
        }

        .leaderboard-item:hover {
            background: rgba(59, 130, 246, 0.05);
        }

        .leaderboard-rank {
            font-weight: 700;
            font-size: 1.3rem;
            width: 35px;
            text-align: center;
        }

        .leaderboard-avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-blue), var(--primary-red));
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.2rem;
        }

        .leaderboard-name {
            flex: 1;
            font-weight: 600;
        }

        .leaderboard-points {
            font-weight: 700;
            color: var(--primary-blue);
            font-size: 1.05rem;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* AI SECTION */
        .ai-section {
            background: linear-gradient(135deg, #0F172A 0%, #1E1B4B 100%);
            padding: 7rem 5%;
            position: relative;
            color: white;
        }

        @media (min-width: 1024px) {
            .ai-section {
                padding: 10rem 0;
            }

            .ai-section .section-container {
                display: grid;
                grid-template-columns: 1.2fr 1fr;
                gap: 6rem;
                align-items: center;
            }

            .ai-header {
                position: sticky;
                top: 120px;
            }

            .ai-cards {
                grid-template-columns: 1fr;
                gap: 1.5rem;
                margin-top: 0;
            }
        }

        .ai-section .section-title {
            color: white;
        }

        .ai-section .section-subtitle {
            color: rgba(255, 255, 255, 0.8);
        }

        .ai-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            margin-top: 4rem;
        }

        .ai-card {
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 24px;
            padding: 2.5rem;
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.4s ease;
            backdrop-filter: blur(15px);
            position: relative;
            overflow: hidden;
        }

        .ai-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 50%, rgba(255, 255, 255, 0.05) 100%);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .ai-card.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .ai-card:nth-child(2) {
            transition-delay: 0.2s;
        }

        .ai-card:nth-child(3) {
            transition-delay: 0.4s;
        }

        .ai-card:hover {
            transform: translateY(-16px);
            border-color: rgba(255, 255, 255, 0.25);
            background: rgba(255, 255, 255, 0.12);
        }

        .ai-card:hover::before {
            opacity: 1;
        }

        .ai-card-icon {
            width: 64px;
            height: 64px;
            margin-bottom: 1.75rem;
            font-size: 2.5rem;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .ai-card h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }

        .ai-card p {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            font-size: 1.05rem;
        }

        /* FAQ SECTION */
        .faq-section {
            background: var(--off-white);
            padding: 7rem 5%;
        }

        .faq-container {
            max-width: 900px;
            margin: 4rem auto 0;
        }

        .faq-item {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: 20px;
            margin-bottom: 1.25rem;
            overflow: hidden;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
            position: relative;
        }

        .faq-item:hover {
            transform: translateY(-2px);
        }

        .faq-item.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .faq-question {
            padding: 1.75rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.15rem;
            transition: background 0.3s ease;
        }

        .faq-question:hover {
            background: rgba(0, 0, 0, 0.02);
        }

        .faq-icon {
            font-size: 1.75rem;
            transition: transform 0.3s ease;
            font-weight: 300;
        }

        .faq-item.active .faq-icon {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            padding: 0 1.75rem;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 1.75rem 1.75rem;
        }

        .faq-answer p {
            color: var(--text-gray);
            line-height: 1.7;
            font-size: 1.05rem;
        }

        /* FINAL CTA */
        .final-cta {
            background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-red) 100%);
            padding: 7rem 5%;
            text-align: center;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .final-cta::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
            animation: backgroundPulse 6s ease-in-out infinite;
        }

        .animated-shapes {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .floating-shape {
            position: absolute;
            opacity: 0.1;
            animation: floatShape 8s linear infinite;
        }

        .floating-shape::before {
            content: '';
            display: block;
            width: 100px;
            height: 100px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
        }

        .floating-shape:nth-child(1) {
            left: 10%;
            animation-delay: 0s;
            animation-duration: 12s;
        }

        .floating-shape:nth-child(1)::before {
            width: 80px;
            height: 80px;
            background: rgba(255, 255, 255, 0.15);
            border-radius: 20px;
        }

        .floating-shape:nth-child(2) {
            left: 70%;
            animation-delay: 2s;
            animation-duration: 10s;
        }

        .floating-shape:nth-child(2)::before {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
        }

        .floating-shape:nth-child(3) {
            left: 50%;
            animation-delay: 4s;
            animation-duration: 14s;
        }

        .floating-shape:nth-child(3)::before {
            width: 120px;
            height: 120px;
            border-radius: 30px;
            background: rgba(255, 255, 255, 0.08);
        }

        .floating-shape:nth-child(4) {
            left: 25%;
            animation-delay: 1s;
            animation-duration: 11s;
        }

        .floating-shape:nth-child(4)::before {
            width: 90px;
            height: 90px;
            background: rgba(255, 255, 255, 0.12);
            transform: rotate(45deg);
            border-radius: 15px;
        }

        .floating-shape:nth-child(5) {
            left: 85%;
            animation-delay: 3s;
            animation-duration: 13s;
        }

        .floating-shape:nth-child(5)::before {
            width: 70px;
            height: 70px;
            background: rgba(255, 255, 255, 0.1);
            clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
        }

        @keyframes backgroundPulse {
            0%, 100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.8;
                transform: scale(1.05);
            }
        }

        @keyframes floatShape {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 0.1;
            }
            90% {
                opacity: 0.1;
            }
            100% {
                transform: translateY(-100px) rotate(360deg);
                opacity: 0;
            }
        }

        .gradient-orbs {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .gradient-orb {
            position: absolute;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
            animation: orbFloat 8s ease-in-out infinite;
        }

        .gradient-orb:nth-child(1) {
            width: 200px;
            height: 200px;
            top: 20%;
            left: 15%;
            animation-delay: 0s;
        }

        .gradient-orb:nth-child(2) {
            width: 150px;
            height: 150px;
            top: 60%;
            right: 20%;
            animation-delay: 2s;
        }

        .gradient-orb:nth-child(3) {
            width: 100px;
            height: 100px;
            top: 40%;
            right: 40%;
            animation-delay: 4s;
        }

        @keyframes orbFloat {
            0%, 100% {
                transform: translateY(0px) scale(1);
                opacity: 0.1;
            }
            50% {
                transform: translateY(-20px) scale(1.1);
                opacity: 0.2;
            }
        }

        .final-cta .section-title {
            color: white;
            opacity: 0;
            transform: scale(0.95);
            transition: all 0.6s ease;
        }

        .final-cta .section-title.visible {
            opacity: 1;
            transform: scale(1);
        }

        .final-cta .section-subtitle {
            color: rgba(255, 255, 255, 0.95);
        }

        .final-cta .btn-primary {
            background: white;
            color: var(--primary-blue);
            font-size: 1.2rem;
            padding: 1.3rem 3.5rem;
            margin-top: 1rem;
        }

        .final-cta .btn-primary:hover {
            transform: translateY(-3px) scale(1.05);
        }

        /* FOOTER */
        .footer {
            background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
            padding: 4rem 5% 2rem;
            color: white;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 2rem;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .footer-brand .logo {
            filter: brightness(0) invert(1);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            max-width: 300px;
        }

        .footer-social {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }

        .footer-social a {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .footer-social a:hover {
            background: var(--primary-blue);
            transform: translateY(-2px);
        }

        .footer-column h4 {
            font-weight: 700;
            margin-bottom: 1.5rem;
            font-size: 1.1rem;
        }

        .footer-column ul {
            list-style: none;
            padding: 0;
        }

        .footer-column ul li {
            margin-bottom: 0.75rem;
        }

        .footer-column ul li a {
            color: rgba(255, 255, 255, 0.7);
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-column ul li a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .footer-bottom p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
        }

        .footer-links {
            display: flex;
            gap: 2rem;
        }

        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .footer-links a:hover {
            color: white;
        }

        @media (max-width: 768px) {
            .footer-content {
                grid-template-columns: 1fr;
                gap: 2rem;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .footer-links {
                justify-content: center;
            }
        }

        /* BACK TO TOP */
        .back-to-top {
            position: fixed;
            bottom: 2rem;
            right: 2rem;
            width: 56px;
            height: 56px;
            background: var(--primary-blue);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.5rem;
            cursor: pointer;
            opacity: 0;
            transform: scale(0);
            transition: all 0.3s ease;
            z-index: 999;
        }

        .back-to-top.visible {
            opacity: 1;
            transform: scale(1);
        }

        .back-to-top:hover {
            transform: scale(1.15);
        }

        /* DYNAMIC PARTICLE SYSTEM */
        .particles-container {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
            overflow: hidden;
        }

        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(59, 130, 246, 0.6);
            border-radius: 50%;
            pointer-events: none;
        }

        .particle.red {
            background: rgba(239, 68, 68, 0.6);
        }

        .particle.blue {
            background: rgba(59, 130, 246, 0.6);
        }

        .particle.purple {
            background: rgba(147, 51, 234, 0.6);
        }

        /* MORPHING SHAPES */
        .morphing-shape {
            position: absolute;
            opacity: 0.08;
            animation: morphShape 10s ease-in-out infinite;
            z-index: 1;
        }

        .morphing-shape:nth-child(1) {
            top: 10%;
            left: 10%;
            width: 100px;
            height: 100px;
            background: linear-gradient(45deg, var(--primary-blue), var(--primary-red));
            border-radius: 50%;
        }

        .morphing-shape:nth-child(2) {
            top: 60%;
            right: 15%;
            width: 80px;
            height: 80px;
            background: linear-gradient(45deg, var(--primary-red), var(--primary-blue));
            border-radius: 20%;
            animation-delay: 2s;
        }

        .morphing-shape:nth-child(3) {
            bottom: 20%;
            left: 30%;
            width: 60px;
            height: 60px;
            background: linear-gradient(45deg, var(--primary-blue), transparent);
            border-radius: 30%;
            animation-delay: 4s;
        }

        @keyframes morphShape {
            0%, 100% {
                transform: rotate(0deg) scale(1);
                border-radius: 50%;
            }
            25% {
                transform: rotate(90deg) scale(1.2);
                border-radius: 20%;
            }
            50% {
                transform: rotate(180deg) scale(0.8);
                border-radius: 0%;
            }
            75% {
                transform: rotate(270deg) scale(1.1);
                border-radius: 30%;
            }
        }

        /* SCROLL REVEAL ANIMATIONS */
        .reveal-up {
            opacity: 0;
            transform: translateY(60px);
            transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .reveal-up.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        .reveal-left {
            opacity: 0;
            transform: translateX(-60px);
            transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .reveal-left.revealed {
            opacity: 1;
            transform: translateX(0);
        }

        .reveal-scale {
            opacity: 0;
            transform: scale(0.9);
            transition: all 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .reveal-scale.revealed {
            opacity: 1;
            transform: scale(1);
        }

        /* INTERACTIVE ELEMENTS */
        .magnetic-btn {
            transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        .tilt-card {
            transform-style: preserve-3d;
            transition: transform 0.3s ease;
        }

        .glow-effect {
            position: relative;
            overflow: hidden;
        }

        .glow-effect::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(59, 130, 246, 0.1), transparent);
            transform: rotate(45deg) translateX(-100%);
            transition: transform 0.6s ease;
        }

        .glow-effect:hover::after {
            transform: rotate(45deg) translateX(100%);
        }

        /* RESPONSIVE */
        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 4.5rem;
            }

            .section-title {
                font-size: 3rem;
            }
        }

        @media (max-width: 768px) {
            .hamburger {
                display: flex;
            }

            nav {
                position: fixed;
                top: 0;
                right: -100%;
                width: 85%;
                max-width: 400px;
                height: 100vh;
                background: white;
                flex-direction: column;
                padding: 6rem 2rem 2rem;
                transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
                gap: 1.5rem;
            }

            nav.active {
                right: 0;
            }

            nav a {
                width: 100%;
                padding: 0.75rem 0;
            }

            .hero {
                padding: 7rem 5% 3rem;
            }

            .hero h1 {
                font-size: 3.5rem;
                letter-spacing: -1px;
            }

            .hero p {
                font-size: 1.15rem;
            }

            .section-title {
                font-size: 2.25rem;
            }

            .section-subtitle {
                font-size: 1.1rem;
            }

            .students-grid {
                grid-template-columns: 1fr;
            }

            .floating-icon {
                display: none;
            }

            .problem-card,
            .feature-card,
            .ai-card {
                padding: 2rem;
            }

            .feature-grid,
            .ai-cards {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 480px) {
            header {
                padding: 1rem 4%;
            }

            .hero h1 {
                font-size: 2.75rem;
            }

            .hero p {
                font-size: 1.05rem;
            }

            .btn-primary,
            .btn-secondary {
                padding: 1rem 2rem;
                font-size: 1rem;
            }

            .section-title {
                font-size: 1.85rem;
            }
        }