* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: Arial, sans-serif;
            background-color: #f5f5f5;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        /* Container principal */
        .login-container {
            width: 100%;
            max-width: 400px;
            padding: 20px;
        }

        /* Logo */
        .logo-container {
            text-align: center;
            margin-bottom: 30px;
        }

        .logo-container img {
            width: 200px;
            height: auto;
            border-radius: 20px;
        }

        /* Formulário de login */
        #login {
            background: white;
            border-radius: 8px;
            padding: 40px 30px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            border: 1px solid #ddd;
        }

        /* Título do formulário */
        .login-title {
            text-align: center;
            color: #333;
            font-size: 24px;
            font-weight: bold;
            margin-bottom: 30px;
        }

        /* Grupos de input */
        .input-group {
            margin-bottom: 20px;
        }

        .input-group-text {
            background-color: #3e4532;
            border: 1px solid #3e4532;
            border-radius: 4px 0 0 4px;
            padding: 12px;
        }

        .input-group-text i {
            color: white;
            font-size: 16px;
        }

        /* Campos de input */
        .input_usuario {
            border: 1px solid #ddd;
            border-left: none;
            border-radius: 0 4px 4px 0;
            padding: 12px 15px;
            font-size: 16px;
            width: 100%;
            height: 50px;
        }

        .input_usuario:focus {
            outline: none;
            border-color: #3e4532;
        }

        .input_usuario::placeholder {
            color: #999;
        }

        /* Área do botão */
        .area_botao {
            margin-top: 25px;
            margin-bottom: 20px;
        }

        /* Botão de login */
        .botaologin {
            width: 100%;
            padding: 12px;
            background-color: #3e4532;
            color: white;
            border: none;
            border-radius: 4px;
            font-size: 16px;
            font-weight: bold;
            cursor: pointer;
        }

        .botaologin:hover {
            background-color: #2d3325;
        }

        /* Copyright */
        #login h6 {
            text-align: center;
            color: #666;
            font-size: 12px;
            margin-top: 15px;
        }

        /* Responsividade */
        @media (max-width: 768px) {
            .login-container {
                padding: 15px;
                max-width: 350px;
            }
            
            .logo-container img {
                width: 150px;
            }
            
            #login {
                padding: 30px 20px;
            }
        }

        @media (max-width: 480px) {
            .login-container {
                max-width: 300px;
            }
            
            .logo-container img {
                width: 120px;
            }
            
            #login {
                padding: 25px 15px;
            }
        }