:root {
            --primary: #1a237e;
            --secondary: #00bcd4;
            --accent: #ff4081;
            --dark: #0d153a;
            --light: #f5f7ff;
            --success: #4caf50;
            --warning: #ff9800;
            --gradient: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
        }
        
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f8f9fa;
            color: #333;
            overflow-x: hidden;
        }
        
        .navbar-brand {
            font-weight: 700;
            font-size: 1.8rem;
            background: linear-gradient(to right, var(--secondary), #fff);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        
        .nav-link {
            font-weight: 500;
            transition: all 0.3s;
        }
        
        .nav-link:hover {
            color: var(--secondary) !important;
        }
        
        .hero-section {
            background: var(--gradient);
            color: white;
            padding: 100px 0;
            position: relative;
            overflow: hidden;
        }
        
        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMTAwJSIgaGVpZ2h0PSIxMDAlIiB2aWV3Qm94PSIwIDAgMTAwMCAxMDAwIiBmaWxsPSJub25lIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuXzAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgcGF0dGVyblRyYW5zZm9ybT0icm90YXRlKDQ1KSI+PHBhdGggZD0iTTAgMEgyMFYyMEgwWiIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjA1KSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0idXJsKCNwYXR0ZXJuXzApIi8+PC9zdmc+');
            opacity: 0.3;
        }
        
        .hero-content h1 {
            font-size: 3.5rem;
            font-weight: 800;
            margin-bottom: 20px;
        }
        
        .hero-content p {
            font-size: 1.2rem;
            margin-bottom: 30px;
            opacity: 0.9;
        }
        
        .btn-primary-custom {
            background: linear-gradient(to right, var(--secondary), var(--accent));
            border: none;
            color: white;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.3s;
        }
        
        .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
            color: white;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 50px;
            position: relative;
        }
        
        .section-title h2 {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary);
            display: inline-block;
            padding-bottom: 15px;
        }
        
        .section-title h2::after {
            content: '';
            position: absolute;
            width: 80px;
            height: 4px;
            background: var(--secondary);
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
        }
        
        .plan-card {
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            padding: 30px;
            margin-bottom: 30px;
            transition: all 0.3s;
            border-top: 5px solid var(--secondary);
            height: 100%;
        }
        
        .plan-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
        }
        
        .plan-card h3 {
            color: var(--primary);
            font-weight: 700;
            margin-bottom: 20px;
        }
        
        .plan-table {
            width: 100%;
            margin-bottom: 20px;
        }
        
        .plan-table th {
            background-color: var(--primary);
            color: white;
            padding: 12px;
            text-align: center;
        }
        
        .plan-table td {
            padding: 12px;
            text-align: center;
            border-bottom: 1px solid #eee;
        }
        
        .plan-table tr:nth-child(even) {
            background-color: #f9f9f9;
        }
        
        .highlight-badge {
            background: linear-gradient(to right, var(--accent), #ff80ab);
            color: white;
            padding: 5px 15px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            display: inline-block;
            margin-bottom: 15px;
        }
        
        .income-card {
            background: white;
            border-radius: 15px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            padding: 25px;
            margin-bottom: 25px;
            border-left: 5px solid var(--secondary);
        }
        
        .income-card h4 {
            color: var(--primary);
            font-weight: 600;
            margin-bottom: 15px;
        }
        
        .feature-icon {
            width: 70px;
            height: 70px;
            background: linear-gradient(to right, var(--primary), var(--dark));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }
        
        .feature-icon i {
            font-size: 1.8rem;
            color: white;
        }
        
        .modal-content {
            border-radius: 15px;
            overflow: hidden;
            border: none;
        }
        
        .modal-header {
            background: var(--gradient);
            color: white;
        }
        
        .footer {
            background: var(--dark);
            color: white;
            padding: 60px 0 30px;
        }
        
        .footer h5 {
            color: var(--secondary);
            margin-bottom: 25px;
            font-weight: 600;
        }
        
        .footer-links a {
            color: #ccc;
            text-decoration: none;
            display: block;
            margin-bottom: 10px;
            transition: all 0.3s;
        }
        
        .footer-links a:hover {
            color: var(--secondary);
            padding-left: 5px;
        }
        
        .copyright {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 20px;
            margin-top: 40px;
            text-align: center;
            color: #aaa;
            font-size: 0.9rem;
        }
        
        .mobile-menu-btn {
            display: none;
        }
        
        .login-btn, .signup-btn {
            padding: 8px 20px;
            border-radius: 50px;
            font-weight: 600;
            margin-left: 10px;
        }
        
        .login-btn {
            background: transparent;
            border: 2px solid var(--secondary);
            color: var(--secondary);
        }
        
        .signup-btn {
            background: var(--secondary);
            border: 2px solid var(--secondary);
            color: white;
        }
        
        @media (max-width: 992px) {
            .hero-content h1 {
                font-size: 2.5rem;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .navbar-nav {
                text-align: center;
                padding: 20px 0;
                background: rgba(13, 21, 58, 0.95);
                border-radius: 10px;
                margin-top: 10px;
            }
            
            .login-signup-container {
                display: flex;
                justify-content: center;
                margin-top: 10px;
            }
        }
        
        @media (max-width: 768px) {
            .hero-section {
                padding: 70px 0;
            }
            
            .hero-content h1 {
                font-size: 2rem;
            }
            
            .section-title h2 {
                font-size: 2rem;
            }
        }
        
        .robot-animation {
            position: relative;
            width: 100%;
            height: 300px;
        }
        
        .robot {
            position: absolute;
            width: 120px;
            height: 150px;
            background: linear-gradient(to bottom, #3f51b5, #1a237e);
            border-radius: 60px 60px 10px 10px;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            animation: float 3s ease-in-out infinite;
        }
        
        .robot-head {
            width: 100px;
            height: 70px;
            background: #303f9f;
            border-radius: 40px 40px 10px 10px;
            position: absolute;
            top: -40px;
            left: 10px;
        }
        
        .robot-eye {
            width: 20px;
            height: 20px;
            background: var(--secondary);
            border-radius: 50%;
            position: absolute;
            top: 25px;
            animation: blink 4s infinite;
        }
        
        .eye-left { left: 25px; }
        .eye-right { right: 25px; }
        
        @keyframes float {
            0%, 100% { transform: translate(-50%, -50%); }
            50% { transform: translate(-50%, -55%); }
        }
        
        @keyframes blink {
            0%, 45%, 55%, 100% { height: 20px; }
            50% { height: 5px; }
        }
        
        .chart-container {
            background: white;
            border-radius: 15px;
            padding: 20px;
            box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
            margin-bottom: 30px;
        }