* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                        url('https://images.unsplash.com/photo-1523240795612-9a054b0db644?ixlib=rb-4.0.3&auto=format&fit=crop&w=1920&q=80') no-repeat center center fixed;
            background-size: cover;
            color: white;
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 20px;
        }

        /* Header */
        header {
            position: absolute;
            top: 0;
            width: 100%;
            background: linear-gradient(135deg, #2c3e50, #4a6491);
            padding: 15px 0;
            text-align: center;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
        }

        .logo {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 10px;
        }

        .logo i {
            font-size: 24px;
        }

        .logo h1 {
            font-size: 1.4rem;
            font-weight: 600;
        }

        /* Container de Login */
        .login-container {
            background: rgba(255, 255, 255, 0.95);
            border-radius: 12px;
            padding: 30px;
            width: 100%;
            max-width: 450px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            text-align: center;
            color: #333;
        }

        .login-header {
            margin-bottom: 25px;
        }

        .login-header i {
            font-size: 50px;
            color: #2c3e50;
            margin-bottom: 15px;
        }

        .login-header h2 {
            font-size: 1.8rem;
            color: #2c3e50;
            margin-bottom: 10px;
        }

        .login-header p {
            color: #666;
            font-size: 1rem;
        }

        /* Formulário */
        .form-group {
            margin-bottom: 20px;
            text-align: left;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2c3e50;
        }

        .input-with-icon {
            position: relative;
        }

        .input-with-icon i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #4a6491;
        }

        .input-with-icon input {
            width: 100%;
            padding: 15px 15px 15px 45px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }

        .input-with-icon input:focus {
            border-color: #4a6491;
            outline: none;
        }

        .login-btn {
            background: linear-gradient(135deg, #4a6491, #2c3e50);
            color: white;
            border: none;
            padding: 15px;
            width: 100%;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            margin-top: 10px;
        }

        .login-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

        .login-btn:active {
            transform: translateY(0);
        }
        
        /* Estilo para o campo de IP */
        .ip-field {
            margin-bottom: 15px;
            text-align: left;
        }
        
        .ip-field label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2c3e50;
        }
        
        .ip-field input {
            width: 100%;
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 8px;
            font-size: 1rem;
            background-color: #f9f9f9;
            color: #555;
        }

        /* Link de visitante */
        .avaliacaoVisitante {
            display: block;
            text-align: center;
            color: #4a6491;
            text-decoration: none;
            margin-top: 15px;
            font-weight: 600;
        }

        .avaliacaoVisitante:hover {
            text-decoration: underline;
        }

        /* Footer */
        footer {
            margin-top: 20px;
            text-align: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
        }

        /* Responsividade */
        @media (max-width: 768px) {
            .login-container {
                padding: 20px;
                max-width: 90%;
            }

            .logo h1 {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 15px;
            }

            .login-header h2 {
                font-size: 1.5rem;
            }

            .input-with-icon input {
                padding: 12px 12px 12px 40px;
            }
        }