:root {
            --primary: #6c5ce7;
            --primary-dark: #5649c0;
            --secondary: #00cec9;
            --success: #00b894;
            --danger: #d63031;
            --light: #f5f6fa;
            --dark: #2d3436;
            --gray: #636e72;
            --light-gray: #dfe6e9;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Poppins', sans-serif;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            color: var(--dark);
        }
        
        .container {
            background-color: white;
            border-radius: 15px;
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
            overflow: hidden;
            width: 100%;
            max-width: 500px;
            transition: all 0.3s ease;
        }
        
        .container:hover {
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
            transform: translateY(-5px);
        }
        
        header {
            background: linear-gradient(to right, var(--primary), var(--primary-dark));
            color: white;
            padding: 30px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        header::before {
            content: "";
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
            transform: rotate(30deg);
            animation: shine 8s infinite linear;
        }
        
        @keyframes shine {
            0% { transform: rotate(30deg) translate(-10%, -10%); }
            100% { transform: rotate(30deg) translate(10%, 10%); }
        }
        
        h1 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 5px;
            position: relative;
        }
        
        .subtitle {
            font-size: 14px;
            opacity: 0.9;
            font-weight: 300;
            position: relative;
        }
        
        .main-content {
            padding: 30px;
        }
        
        .alert {
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 25px;
            font-size: 14px;
            display: flex;
            align-items: center;
            position: relative;
            overflow: hidden;
            animation: fadeIn 0.5s ease;
        }
        
        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .alert-success {
            background-color: rgba(0, 184, 148, 0.1);
            color: var(--success);
            border-left: 4px solid var(--success);
        }
        
        .alert-error {
            background-color: rgba(214, 48, 49, 0.1);
            color: var(--danger);
            border-left: 4px solid var(--danger);
        }
        
        .form-group {
            margin-bottom: 20px;
            position: relative;
        }
        
        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
            color: var(--gray);
            font-size: 14px;
        }
        
        input {
            width: 100%;
            padding: 12px 15px;
            border: 2px solid var(--light-gray);
            border-radius: 8px;
            font-size: 14px;
            transition: all 0.3s ease;
            background-color: rgba(245, 246, 250, 0.5);
        }
        
        input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
            outline: none;
            background-color: white;
        }
        
        .generate-btn {
            width: 100%;
            padding: 14px;
            background: linear-gradient(to right, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
            box-shadow: 0 4px 10px rgba(108, 92, 231, 0.3);
        }
        
        .generate-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(108, 92, 231, 0.4);
        }
        
        .generate-btn:active {
            transform: translateY(0);
        }
        
        .login-link {
            text-align: center;
            margin-top: 25px;
            font-size: 14px;
            color: var(--gray);
        }
        
        .login-link a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            transition: all 0.2s ease;
        }
        
        .login-link a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        
        .back-link {
            display: inline-block;
            margin-top: 20px;
            color: var(--primary);
            text-decoration: none;
            font-size: 14px;
            transition: all 0.2s ease;
        }
        
        .back-link:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }
        
        .form-icon {
            position: absolute;
            right: 15px;
            top: 38px;
            color: var(--gray);
            opacity: 0.6;
        }
        
        @media (max-width: 480px) {
            .container {
                border-radius: 10px;
            }
            
            header {
                padding: 25px 20px;
            }
            
            h1 {
                font-size: 24px;
            }
            
            .main-content {
                padding: 25px 20px;
            }
        }