:root {
            --primary: #65c434;
            --primary-dark: #3d7a1f;
            --primary-light: #a3e085;
            --secondary: #0ea5e9;
            --accent: #f59e0b;
            --success: #10b981;
            --dark: #1e293b;
            --dark-lighter: #334155;
            --light: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-600: #475569;
        }

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

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

        /* Navigation */
        .nav {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: 16px 24px;
            border-bottom: 1px solid var(--gray-200);
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-family: 'Birthstone', cursive;
            font-size: 48px;
            font-weight: 400;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -1px;
            text-decoration: none;
        }

        .logo span {
            font-weight: 400;
        }

        .nav-links {
            display: flex;
            gap: 32px;
            align-items: center;
        }

        .nav-link {
            color: var(--gray-600);
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: color 0.2s;
        }

        .nav-link:hover {
            color: var(--primary);
        }

        .nav-cta {
            background: var(--primary);
            color: white;
            padding: 10px 20px;
            border-radius: 8px;
            text-decoration: none;
            font-weight: 600;
            font-size: 14px;
            transition: all 0.2s;
        }

        .nav-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 12px rgba(101, 196, 52, 0.3);
        }

        /* Hero Section */
        .hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 80%;
            height: 150%;
            background: radial-gradient(ellipse, rgba(101, 196, 52, 0.1) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-container {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .hero-content {
            z-index: 1;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: white;
            padding: 8px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--primary);
            margin-bottom: 24px;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        }

        .hero-badge i {
            color: var(--accent);
        }

        .hero h1 {
            font-size: 56px;
            font-weight: 800;
            line-height: 1.1;
            margin-bottom: 24px;
            color: var(--dark);
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 18px;
            color: var(--gray-600);
            margin-bottom: 32px;
            max-width: 500px;
        }

        .hero-buttons {
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--primary);
            color: white;
            padding: 16px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(101, 196, 52, 0.3);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(101, 196, 52, 0.4);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: white;
            color: var(--dark);
            padding: 16px 32px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: all 0.3s;
            border: 2px solid var(--gray-200);
        }

        .btn-secondary:hover {
            border-color: var(--primary);
            color: var(--primary);
        }

        .hero-image {
            position: relative;
            z-index: 1;
        }

        .hero-image img {
            width: 100%;
            border-radius: 16px;
            box-shadow: 0 25px 80px rgba(0, 0, 0, 0.15);
        }

        .hero-preview {
            background: white;
            border-radius: 16px;
            padding: 16px;
            box-shadow: 0 25px 80px rgba(0, 0, 0, 0.15);
            border: 1px solid var(--gray-200);
        }

        .preview-header {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--gray-200);
        }

        .preview-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
        }

        .preview-dot.red {
            background: #ef4444;
        }

        .preview-dot.yellow {
            background: #f59e0b;
        }

        .preview-dot.green {
            background: #10b981;
        }

        .preview-content {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 8px;
        }

        .preview-card {
            background: var(--gray-100);
            border-radius: 8px;
            padding: 12px;
            min-height: 60px;
        }

        .preview-card.purple {
            background: rgba(101, 196, 52, 0.1);
        }

        .preview-card.blue {
            background: rgba(14, 165, 233, 0.1);
        }

        .preview-card.green {
            background: rgba(16, 185, 129, 0.1);
        }

        .preview-card.orange {
            background: rgba(245, 158, 11, 0.1);
        }

        .preview-postit {
            width: 24px;
            height: 24px;
            border-radius: 3px;
            margin: 4px;
            display: inline-block;
        }

        .preview-postit.yellow {
            background: #fef08a;
        }

        .preview-postit.pink {
            background: #fda4af;
        }

        .preview-postit.blue {
            background: #93c5fd;
        }

        /* Features Section */
        .features {
            padding: 100px 24px;
            background: white;
        }

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

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header h2 {
            font-size: 40px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--dark);
        }

        .section-header p {
            font-size: 18px;
            color: var(--gray-500);
            max-width: 600px;
            margin: 0 auto;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
        }

        .feature-card {
            padding: 32px;
            border-radius: 16px;
            background: var(--gray-100);
            transition: all 0.3s;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .feature-icon {
            width: 56px;
            height: 56px;
            border-radius: 12px;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
        }

        .feature-icon i {
            font-size: 24px;
            color: white;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 12px;
            color: var(--dark);
        }

        .feature-card p {
            font-size: 15px;
            color: var(--gray-500);
            line-height: 1.6;
        }

        /* CTA Section */
        .cta {
            padding: 100px 24px;
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-lighter) 100%);
            text-align: center;
        }

        .cta-container {
            max-width: 700px;
            margin: 0 auto;
        }

        .cta h2 {
            font-size: 40px;
            font-weight: 700;
            color: white;
            margin-bottom: 16px;
        }

        .cta p {
            font-size: 18px;
            color: var(--gray-400);
            margin-bottom: 32px;
        }

        .cta .btn-primary {
            padding: 20px 48px;
            font-size: 18px;
        }

        /* Footer */
        .footer {
            padding: 40px 24px;
            background: var(--dark);
            border-top: 1px solid var(--dark-lighter);
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .footer-logo {
            font-size: 24px;
            font-weight: 700;
            color: white;
        }

        .footer-logo span {
            opacity: 1;
        }

        .footer-links {
            display: flex;
            gap: 24px;
        }

        .footer-link {
            color: var(--gray-400);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.2s;
        }

        .footer-link:hover {
            color: white;
        }

        .footer-copy {
            color: var(--gray-500);
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 968px) {
            .hero-container {
                grid-template-columns: 1fr;
                text-align: center;
            }

            .hero h1 {
                font-size: 40px;
            }

            .hero p {
                margin: 0 auto 32px;
            }

            .hero-buttons {
                justify-content: center;
                flex-wrap: wrap;
            }

            .hero-image {
                order: -1;
                max-width: 500px;
                margin: 0 auto;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .nav-links {
                display: none;
            }
        }

        @media (max-width: 768px) {
            .nav {
                padding: 12px 16px;
            }

            .logo {
                font-size: 40px;
            }

            .nav-auth {
                gap: 8px;
            }

            .btn-primary-small {
                padding: 8px 16px;
                font-size: 13px;
            }

            .hero {
                padding: 100px 20px 60px;
            }

            .hero h1 {
                font-size: 36px;
            }

            .hero p {
                font-size: 16px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 6px 12px;
            }

            .features {
                padding: 60px 20px;
            }

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

            .section-header h2 {
                font-size: 32px;
            }

            .section-header p {
                font-size: 16px;
            }

            .cta {
                padding: 60px 20px;
            }

            .cta h2 {
                font-size: 32px;
            }

            .cta p {
                font-size: 16px;
            }

            .footer {
                padding: 32px 20px;
            }
        }

        @media (max-width: 600px) {
            .logo {
                font-size: 36px;
            }

            .hero h1 {
                font-size: 32px;
            }

            .hero-buttons {
                flex-direction: column;
            }

            .btn-primary,
            .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .section-header h2,
            .cta h2 {
                font-size: 28px;
            }

            .footer-container {
                flex-direction: column;
                gap: 20px;
                text-align: center;
            }

            .feature-card {
                padding: 24px;
            }

            .feature-icon {
                width: 48px;
                height: 48px;
            }

            .feature-card h3 {
                font-size: 18px;
            }
        }

        @media (max-width: 480px) {
            .hero h1 {
                font-size: 28px;
            }

            .section-header h2,
            .cta h2 {
                font-size: 24px;
            }

            .btn-primary,
            .btn-secondary {
                font-size: 15px;
                padding: 14px 24px;
            }
        }

        /* Animations */
        @keyframes float {

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

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

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

        /* Powered by LEANAI Badge */
        .powered-by-badge {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 2000;
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
            background: rgba(255, 255, 255, 0.95);
            padding: 6px 14px;
            border-radius: 50px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            backdrop-filter: blur(5px);
            border: 1px solid var(--gray-200);
        }

        .powered-by-badge:hover {
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
            background: white;
            border-color: var(--primary-light);
        }

        .powered-by-badge span:first-child {
            font-size: 11px;
            font-weight: 600;
            color: var(--gray-500);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .powered-by-badge .lean-logo {
            font-size: 16px;
            font-weight: 900;
            letter-spacing: -0.05em;
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            font-family: 'Inter', sans-serif;
            filter: drop-shadow(0 0 0.5px rgba(101, 196, 52, 0.3));
        }

        @media (max-width: 768px) {
            .powered-by-badge {
                top: 12px;
                right: 12px;
                padding: 4px 10px;
            }

            .powered-by-badge span:first-child {
                display: none;
            }
        }