* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            display: flex;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            animation: slideUp 0.6s ease;
        }
        
        @keyframes slideUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        /* Left side - Hero Section */
        .hero-section {
            flex: 1;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 50px;
            color: white;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        
        .hero-title {
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 20px;
            line-height: 1.2;
        }
        
        .hero-text {
            font-size: 1.1rem;
            margin-bottom: 30px;
            opacity: 0.9;
            line-height: 1.6;
        }
        
        .features {
            list-style: none;
            margin-bottom: 30px;
        }
        
        .features li {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
            font-size: 1rem;
        }
        
        .features li i {
            width: 30px;
            height: 30px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-right: 15px;
            font-size: 14px;
        }
        
        .stats {
            display: flex;
            gap: 30px;
            margin-top: 20px;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 5px;
        }
        
        .stat-label {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        /* Right side - Auth Forms */
        .auth-section {
            flex: 1;
            padding: 50px;
            background: white;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 30px;
        }
        
        .logo-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 20px;
        }
        
        .logo-text {
            font-size: 24px;
            font-weight: 800;
            background: linear-gradient(135deg, #667eea, #764ba2);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .tab-container {
            display: flex;
            gap: 20px;
            margin-bottom: 30px;
            border-bottom: 2px solid #f0f0f0;
            padding-bottom: 15px;
        }
        
        .tab {
            font-size: 1.2rem;
            font-weight: 600;
            color: #999;
            cursor: pointer;
            padding: 5px 0;
            position: relative;
            transition: color 0.3s;
        }
        
        .tab.active {
            color: #667eea;
        }
        
        .tab.active::after {
            content: '';
            position: absolute;
            bottom: -17px;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 3px 3px 0 0;
        }
        
        .form-container {
            display: none;
        }
        
        .form-container.active {
            display: block;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateX(20px); }
            to { opacity: 1; transform: translateX(0); }
        }
        
        .form-group {
            margin-bottom: 20px;
        }
        
        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: #333;
            font-weight: 500;
            font-size: 0.95rem;
        }
        
        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s;
        }
        
        .form-control:focus {
            border-color: #667eea;
            outline: none;
            box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
        }
        
        .btn {
            width: 100%;
            padding: 14px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s;
            margin-bottom: 20px;
        }
        
        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
        }
        
        .btn:active {
            transform: translateY(0);
        }
        
        .forgot-password {
            text-align: right;
            margin-bottom: 20px;
        }
        
        .forgot-password a {
            color: #667eea;
            text-decoration: none;
            font-size: 0.9rem;
        }
        
        .forgot-password a:hover {
            text-decoration: underline;
        }
        
        .divider {
            display: flex;
            align-items: center;
            margin: 20px 0;
            color: #999;
            font-size: 0.9rem;
        }
        
        .divider-line {
            flex: 1;
            height: 1px;
            background: #e0e0e0;
        }
        
        .divider-text {
            padding: 0 15px;
        }
        
        .social-buttons {
            display: flex;
            gap: 15px;
        }
        
        .social-btn {
            flex: 1;
            padding: 12px;
            border: 2px solid #e0e0e0;
            border-radius: 10px;
            background: white;
            color: #666;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }
        
        .social-btn:hover {
            border-color: #667eea;
            color: #667eea;
        }
        
        .alert {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 9999;
            max-width: 350px;
            animation: slideInRight 0.3s ease;
        }
        
        .alert-content {
            background: white;
            padding: 15px 20px;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            display: flex;
            align-items: center;
            gap: 15px;
            border-left: 4px solid #667eea;
        }
        
        .alert-success .alert-content { border-left-color: #4CAF50; }
        .alert-error .alert-content { border-left-color: #f44336; }
        .alert-warning .alert-content { border-left-color: #ff9800; }
        
        .alert-text { flex: 1; font-weight: 500; }
        
        .alert-close {
            background: none;
            border: none;
            font-size: 20px;
            cursor: pointer;
            color: #666;
            padding: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
        }
        
        .alert-close:hover { background: #f5f5f5; }
        
        @keyframes slideInRight {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }
        
        .loading-spinner {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255,255,255,.3);
            border-radius: 50%;
            border-top-color: white;
            animation: spin 1s ease-in-out infinite;
        }
        
        @keyframes spin { to { transform: rotate(360deg); } }
        
        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }
        
        @media (max-width: 768px) {
            .container { flex-direction: column; }
            .hero-section { display: none; }
            .auth-section { padding: 30px; }
        }