* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
        }

        :root {
            --primary: #7c4dff;
            --primary-dark: #6a37e6;
            --secondary: #ff6e6c;
            --accent: #00d4aa;
            --dark: #1e1e2e;
            --light: #f8f9fe;
            --gray: #8c8ca1;
            --success: #00c896;
            --error: #ff5c7c;
            --border-radius: 16px;
            --transition: all 0.3s ease;
        }

        body {
            background: linear-gradient(135deg, #f5f7ff 0%, #eef0ff 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 20px;
            color: var(--dark);
        }

        .container {
            display: flex;
            width: 100%;
            max-width: 1000px;
            min-height: 600px;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
            animation: fadeIn 0.8s ease-out;
        }

        .illustration-side {
            flex: 1;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .illustration-side::before {
            content: '';
            position: absolute;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            top: -150px;
            left: -150px;
        }

        .illustration-side::after {
            content: '';
            position: absolute;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.1);
            bottom: -100px;
            right: -100px;
        }

        .logo-container {
            text-align: center;
            margin-bottom: 40px;
            z-index: 2;
        }

        .logo {
            height: 80px;
            width: auto;
            margin-bottom: 15px;
            filter: drop-shadow(0 5px 15px rgba(0, 0, 0, 0.2));
        }

        .logo-text {
            font-size: 28px;
            font-weight: 800;
            letter-spacing: 1px;
        }

        .illustration {
            width: 100%;
            max-width: 320px;
            margin-bottom: 40px;
            z-index: 2;
            filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.2));
        }

        .illustration-content {
            text-align: center;
            z-index: 2;
        }

        .illustration-content h3 {
            font-size: 24px;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .illustration-content p {
            font-size: 16px;
            opacity: 0.9;
            max-width: 300px;
        }

        .form-side {
            flex: 1;
            background: var(--light);
            padding: 50px 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .form-header {
            margin-bottom: 40px;
        }

        .form-header h2 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--dark);
        }

        .form-header p {
            color: var(--gray);
            font-size: 16px;
        }

        .messages {
            list-style: none;
            margin-bottom: 25px;
        }

        .messages li {
            padding: 15px 20px;
            border-radius: 12px;
            margin-bottom: 15px;
            font-size: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
            animation: slideIn 0.5s ease-out;
        }

        .messages .error {
            background-color: rgba(255, 92, 124, 0.1);
            color: var(--error);
            border-left: 4px solid var(--error);
        }

        .messages .success {
            background-color: rgba(0, 200, 150, 0.1);
            color: var(--success);
            border-left: 4px solid var(--success);
        }

        .form-group {
            position: relative;
            margin-bottom: 25px;
        }

        .form-group i {
            position: absolute;
            left: 18px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--gray);
            font-size: 18px;
            transition: var(--transition);
        }

        .form-group input {
            width: 100%;
            padding: 18px 20px 18px 50px;
            border: 2px solid #e4e6f0;
            border-radius: var(--border-radius);
            font-size: 16px;
            transition: var(--transition);
            background: white;
            color: var(--dark);
        }

        .form-group input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(124, 77, 255, 0.15);
        }

        .form-group input:focus + i {
            color: var(--primary);
        }

        .form-options {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 30px;
            font-size: 14px;
        }

        .remember-me {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .remember-me input {
            width: 16px;
            height: 16px;
        }

        .forgot-password {
            color: var(--primary);
            text-decoration: none;
            font-weight: 500;
            transition: var(--transition);
        }

        .forgot-password:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

        .login-button {
            width: 100%;
            padding: 18px;
            background: linear-gradient(to right, var(--primary), var(--primary-dark));
            color: white;
            border: none;
            border-radius: var(--border-radius);
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            box-shadow: 0 10px 20px rgba(124, 77, 255, 0.25);
        }

        .login-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(124, 77, 255, 0.3);
        }

        .login-button:active {
            transform: translateY(0);
        }

        .form-footer {
            text-align: center;
            margin-top: 30px;
        }

        .form-footer p {
            margin-bottom: 15px;
            color: var(--gray);
            font-size: 15px;
        }

        .form-footer a {
            color: var(--primary);
            text-decoration: none;
            font-weight: 600;
            transition: var(--transition);
        }

        .form-footer a:hover {
            color: var(--primary-dark);
            text-decoration: underline;
        }

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

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

        /* Responsive design */
        @media (max-width: 900px) {
            .container {
                flex-direction: column;
                max-width: 500px;
            }
            
            .illustration-side {
                padding: 30px;
                order: 1;
            }
            
            .form-side {
                padding: 40px 30px;
                order: 2;
            }
            
            .illustration {
                max-width: 250px;
            }
        }

        @media (max-width: 480px) {
            .form-options {
                flex-direction: column;
                gap: 15px;
                align-items: flex-start;
            }
            
            .illustration-side {
                padding: 25px 20px;
            }
            
            .logo {
                height: 70px;
            }
            
            .logo-text {
                font-size: 24px;
            }
        }