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

        body {
            font-family: 'Poppins', sans-serif;
            line-height: 1.6;
            color: #4a5568;
            background: linear-gradient(135deg, #f0f9ff 0%, #fef7f0 100%);
            min-height: 100%;
        }

        html {
            height: 100%;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Navigation */
        .navbar {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            padding: 1rem 0;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
        }

        .nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 700;
            background: linear-gradient(135deg, #10b981, #f472b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 2rem;
        }

        .nav-links a {
            text-decoration: none;
            color: #4a5568;
            font-weight: 500;
            transition: all 0.3s ease;
            padding: 0.5rem 1rem;
            border-radius: 20px;
        }

        .nav-links a:hover, .nav-links a.active {
            color: #10b981;
            background: rgba(16, 185, 129, 0.1);
        }

        .auth-buttons {
            display: flex;
            gap: 1rem;
        }

        .btn {
            padding: 0.75rem 1.5rem;
            border: none;
            border-radius: 25px;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, #10b981, #059669);
            color: white;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
        }

        .btn-secondary {
            background: rgba(244, 114, 182, 0.1);
            color: #f472b6;
            border: 2px solid #f472b6;
        }

        .btn-secondary:hover {
            background: #f472b6;
            color: white;
            transform: translateY(-2px);
        }

        /* Main Content */
        .main-content {
            margin-top: 80px;
            min-height: calc(100% - 80px);
        }

        .page {
            display: none;
            animation: fadeIn 0.5s ease-in;
        }

        .page.active {
            display: block;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #ecfdf5 0%, #fef7f0 50%, #fdf2f8 100%);
            padding: 6rem 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(16, 185, 129, 0.1) 0%, transparent 70%);
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
        }

        .hero-content {
            position: relative;
            z-index: 2;
        }

        .hero h1 {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            background: linear-gradient(135deg, #10b981, #f472b6, #a855f7);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.25rem;
            margin-bottom: 2.5rem;
            color: #6b7280;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .hero-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Cards */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            padding: 4rem 0;
        }

        .card {
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            padding: 2rem;
            border-radius: 20px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        }

        .card-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #10b981, #f472b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .card h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: #1f2937;
        }

        .card p {
            color: #6b7280;
            line-height: 1.6;
        }

        /* Sections */
        .section {
            padding: 4rem 0;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 700;
            margin-bottom: 3rem;
            background: linear-gradient(135deg, #10b981, #f472b6);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        /* Forms */
        .form-container {
            max-width: 500px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.9);
            padding: 3rem;
            border-radius: 20px;
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .form-group {
            margin-bottom: 1.5rem;
        }

        .form-group label {
            display: block;
            margin-bottom: 0.5rem;
            font-weight: 500;
            color: #374151;
        }

        .form-group input {
            width: 100%;
            padding: 1rem;
            border: 2px solid #e5e7eb;
            border-radius: 15px;
            font-size: 1rem;
            transition: all 0.3s ease;
            background: rgba(255, 255, 255, 0.8);
        }

        .form-group input:focus {
            outline: none;
            border-color: #10b981;
            box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
        }

        /* Dashboard */
        .dashboard {
            display: none;
            padding: 2rem 0;
        }

        .dashboard.active {
            display: block;
        }

        .dashboard-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .dashboard-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            margin-bottom: 3rem;
        }

        .dashboard-card {
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(244, 114, 182, 0.1));
            padding: 2rem;
            border-radius: 20px;
            text-align: center;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }

        /* Footer */
        .footer {
            background: linear-gradient(135deg, #1f2937, #374151);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 4rem;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 2rem;
        }

        .footer-section h3 {
            margin-bottom: 1rem;
            color: #10b981;
        }

        .footer-section p, .footer-section a {
            color: #d1d5db;
            text-decoration: none;
            line-height: 1.8;
        }

        .footer-section a:hover {
            color: #10b981;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 0.5rem;
        }

        .newsletter-form {
            display: flex;
            gap: 1rem;
            margin-top: 1rem;
        }

        .newsletter-form input {
            flex: 1;
            padding: 0.75rem;
            border: none;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.1);
            color: white;
        }

        .newsletter-form input::placeholder {
            color: #d1d5db;
        }

        .footer-bottom {
            text-align: center;
            padding-top: 2rem;
            border-top: 1px solid #374151;
            color: #9ca3af;
        }

        /* Mobile Menu */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            color: #4a5568;
            cursor: pointer;
        }

        .mobile-menu {
            display: none;
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            padding: 1rem 0;
        }

        .mobile-menu.active {
            display: block;
        }

        .mobile-nav-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .mobile-nav-links li {
            margin: 0;
        }

        .mobile-nav-links a {
            display: block;
            padding: 1rem 2rem;
            text-decoration: none;
            color: #4a5568;
            font-weight: 500;
            transition: all 0.3s ease;
        }

        .mobile-nav-links a:hover, .mobile-nav-links a.active {
            color: #10b981;
            background: rgba(16, 185, 129, 0.1);
        }

        .mobile-auth-buttons {
            padding: 1rem 2rem;
            display: flex;
            gap: 1rem;
            flex-direction: column;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .auth-buttons {
                display: none;
            }

            .mobile-menu-btn {
                display: block;
            }

            .nav-container {
                position: relative;
            }

            .hero h1 {
                font-size: 2.5rem;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }

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

            .newsletter-form {
                flex-direction: column;
            }
        }

        /* Animations */
        .fade-in {
            opacity: 0;
            transform: translateY(30px);
            transition: all 0.6s ease;
        }

        .fade-in.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* Success Messages */
        .success-message {
            background: linear-gradient(135deg, #10b981, #059669);
            color: white;
            padding: 1rem;
            border-radius: 10px;
            margin: 1rem 0;
            text-align: center;
            display: none;
        }

        .success-message.show {
            display: block;
            animation: slideIn 0.5s ease;
        }

        @keyframes slideIn {
            from { transform: translateY(-20px); opacity: 0; }
            to { transform: translateY(0); opacity: 1; }
        }