* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
        }
        
        :root {
            --primary-color: #3498db;
            --primary-dark: #2980b9;
            --secondary-color: #2ecc71;
            --secondary-dark: #27ae60;
            --accent-color: #2c3e50;
            --accent-dark: #1a252f;
            --dark-color: #2c3e50;
            --light-color: #f8f9fa;
            --gray-color: #7f8c8d;
            --light-gray: #e9ecef;
            --text-color: #333;
            --white: #ffffff;
            --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s ease;
        }
        
        body {
            background-color: var(--light-color);
            color: var(--text-color);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }
        
        /* ==================== HEADER ==================== */
        .main-header {
            background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
            color: white;
            padding: 20px 0;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        
        .header-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .logo-container {
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .logo-placeholder {
            width: 50px;
            height: 50px;
            background: rgba(255, 255, 255, 0.9);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: var(--accent-color);
            font-size: 20px;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        
        .logo-text {
            display: flex;
            flex-direction: column;
            gap: 2px;
        }
        
        .logo-main {
            font-size: 24px;
            font-weight: bold;
            color: white;
            text-decoration: none;
        }
        
        .logo-tagline {
            font-size: 12px;
            color: rgba(255, 255, 255, 0.8);
        }
        
        .nav-links {
            display: flex;
            gap: 15px;
            align-items: center;
        }
        
        .nav-links a {
            color: white;
            text-decoration: none;
            padding: 8px 16px;
            border-radius: 5px;
            transition: background-color 0.3s;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .nav-links a:hover {
            background-color: rgba(255,255,255,0.1);
        }
        
        .nav-active {
            background-color: rgba(255,255,255,0.15);
        }
        
        .btn-home {
            background: rgba(255,255,255,0.1);
            border: 2px solid rgba(255,255,255,0.3);
            color: white;
            padding: 8px 16px;
            border-radius: 5px;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 500;
            transition: all 0.3s;
            text-decoration: none;
        }
        
        .btn-home:hover {
            background: rgba(255,255,255,0.2);
        }
        
        /* ==================== MAIN CONTENT ==================== */
        .main-content {
            flex: 1;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 40px 0;
        }
        
        .register-container {
            max-width: 1000px;
            width: 100%;
            margin: 0 auto;
        }
        
        .register-card {
            background: var(--white);
            border-radius: 20px;
            box-shadow: var(--shadow-lg);
            overflow: hidden;
            transition: var(--transition);
        }
        
        .register-header {
            background: linear-gradient(135deg, #e74c3c, #c0392b);
            color: white;
            padding: 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        .register-header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 400"><path d="M0 0h800v400H0z" fill="none"/><circle cx="200" cy="100" r="50" fill="rgba(255,255,255,0.1)"/><circle cx="600" cy="150" r="80" fill="rgba(255,255,255,0.1)"/><circle cx="400" cy="300" r="60" fill="rgba(255,255,255,0.1)"/></svg>');
            opacity: 0.1;
        }
        
        .register-header h1 {
            font-size: 2.5rem;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        
        .register-header p {
            opacity: 0.9;
            font-size: 1.1rem;
            position: relative;
            z-index: 1;
        }
        
        .register-body {
            padding: 40px;
        }
        
        /* ==================== FORM STYLES ==================== */
        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 25px;
            margin-bottom: 30px;
        }
        
        .form-group {
            position: relative;
        }
        
        .form-group.full-width {
            grid-column: 1 / -1;
        }
        
        label {
            display: block;
            margin-bottom: 8px;
            color: var(--dark-color);
            font-weight: 600;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .required {
            color: #e74c3c;
            font-weight: bold;
        }
        
        .form-control {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid var(--light-gray);
            border-radius: 10px;
            font-size: 16px;
            transition: var(--transition);
            background: var(--white);
        }
        
        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%232c3e50' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            background-size: 12px;
            padding-right: 40px;
        }
        
        .form-control:focus {
            outline: none;
            border-color: var(--primary-color);
            box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
        }
        
        textarea.form-control {
            min-height: 100px;
            resize: vertical;
            line-height: 1.5;
        }
        
        .form-control::placeholder {
            color: var(--gray-color);
            opacity: 0.7;
        }
        
        /* ==================== MESSAGE STYLES ==================== */
        .message {
            padding: 16px 20px;
            margin-bottom: 30px;
            border-radius: 10px;
            font-weight: 500;
            position: relative;
            animation: slideIn 0.3s ease;
            display: flex;
            align-items: center;
            gap: 12px;
        }
        
        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        
        .success {
            background-color: rgba(46, 204, 113, 0.1);
            color: #27ae60;
            border: 2px solid #2ecc71;
        }
        
        .error {
            background-color: rgba(231, 76, 60, 0.1);
            color: #c0392b;
            border: 2px solid #e74c3c;
        }
        
        /* ==================== BUTTON STYLES ==================== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            padding: 16px 32px;
            border-radius: 12px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            font-size: 16px;
            position: relative;
            overflow: hidden;
        }
        
        .btn::after {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            transform: translate(-50%, -50%);
            transition: width 0.6s, height 0.6s;
        }
        
        .btn:hover::after {
            width: 300px;
            height: 300px;
        }
        
        .btn-primary {
            background: linear-gradient(135deg, #e74c3c, #c0392b);
            color: var(--white);
            box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
        }
        
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
        }
        
        .btn-block {
            width: 100%;
        }
        
        /* ==================== FOOTER ==================== */
        .main-footer {
            background: var(--accent-color);
            color: var(--white);
            padding: 40px 0 20px;
            position: relative;
            margin-top: auto;
        }
        
        .footer-bg {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(0,0,0,0.2), rgba(0,0,0,0.1));
        }
        
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }
        
        .footer-section h3 {
            font-size: 1.2rem;
            margin-bottom: 20px;
            color: var(--white);
        }
        
        .footer-section p, .footer-section a {
            color: #bdc3c7;
            line-height: 1.6;
            text-decoration: none;
            transition: var(--transition);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 10px;
        }
        
        .footer-links a:hover {
            color: var(--white);
            padding-left: 5px;
        }
        
        .copyright {
            text-align: center;
            padding-top: 20px;
            border-top: 1px solid #34495e;
            color: #95a5a6;
            font-size: 0.9rem;
            position: relative;
            z-index: 1;
        }
        
        .login-link {
            text-align: center;
            margin-top: 30px;
            padding-top: 30px;
            border-top: 1px solid var(--light-gray);
        }
        
        .login-link p {
            color: var(--gray-color);
            margin-bottom: 10px;
        }
        
        .login-link a {
            color: #e74c3c;
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        
        .login-link a:hover {
            color: #c0392b;
            text-decoration: underline;
        }
        
        .form-hint {
            display: block;
            margin-top: 6px;
            font-size: 12px;
            color: var(--gray-color);
            opacity: 0.8;
        }
        
        .password-strength {
            margin-top: 8px;
            height: 4px;
            background: var(--light-gray);
            border-radius: 2px;
            overflow: hidden;
            position: relative;
        }
        
        .password-strength::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: var(--strength, 0%);
            background: #e74c3c;
            transition: width 0.3s ease;
        }
        
        /* ==================== RESPONSIVE DESIGN ==================== */
        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                gap: 15px;
                padding: 15px;
            }
            
            .logo-container {
                width: 100%;
                justify-content: center;
            }
            
            .nav-links {
                flex-wrap: wrap;
                justify-content: center;
                gap: 10px;
            }
            
            .nav-links a {
                padding: 6px 12px;
                font-size: 14px;
            }
            
            .btn-home {
                padding: 6px 12px;
                font-size: 14px;
            }
            
            .register-header {
                padding: 30px 20px;
            }
            
            .register-header h1 {
                font-size: 2rem;
            }
            
            .register-body {
                padding: 30px 20px;
            }
            
            .form-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            
            .main-content {
                padding: 20px 0;
            }
            
            .register-container {
                padding: 0 15px;
            }
        }
        
        @media (max-width: 480px) {
            .register-header h1 {
                font-size: 1.8rem;
            }
            
            .register-header p {
                font-size: 1rem;
            }
            
            .form-control {
                padding: 12px 14px;
                font-size: 15px;
            }
            
            .btn {
                padding: 14px 28px;
                font-size: 15px;
            }
            
            .message {
                padding: 12px 16px;
                font-size: 14px;
            }
            
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 25px;
            }
        }
        
        @media (max-width: 360px) {
            .nav-links {
                flex-direction: column;
                gap: 8px;
            }
            
            .nav-links a {
                width: 100%;
                justify-content: center;
            }
            
            .btn-home {
                width: 100%;
                justify-content: center;
            }
            
            .register-header {
                padding: 25px 15px;
            }
            
            .register-header h1 {
                font-size: 1.6rem;
            }
            
            .register-body {
                padding: 25px 15px;
            }
        }
        
        /* Mobile Menu Button */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            color: white;
            font-size: 24px;
            cursor: pointer;
            padding: 5px;
        }
        
        @media (max-width: 768px) {
            .mobile-menu-btn {
                display: block;
                position: absolute;
                right: 20px;
                top: 20px;
            }
            
            .nav-links {
                display: none;
                width: 100%;
                flex-direction: column;
                background: linear-gradient(135deg, var(--accent-color), var(--accent-dark));
                position: absolute;
                top: 70px;
                left: 0;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.2);
                z-index: 999;
            }
            
            .nav-links.active {
                display: flex;
            }
            
            .header-container {
                flex-direction: row;
                position: relative;
            }
            
            .logo-container {
                justify-content: flex-start;
            }
        }
        
        /* Form validation styles */
        .form-control:invalid:not(:focus):not(:placeholder-shown) {
            border-color: #e74c3c;
        }
        
        .form-control:valid:not(:focus):not(:placeholder-shown) {
            border-color: #2ecc71;
        }
        
        .investor-icon {
            position: absolute;
            top: 40px;
            right: 40px;
            background: rgba(255,255,255,0.2);
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
        }