Aprende formularios HTML construyendo un formulario de registro - Paso 61

Cuéntanos qué está pasando:
Describe tu problema en detalle aquí.
Me pide que le de al input file el mismo tamaño que los otros inputs. No entiendo como se hace eso.

Tu código hasta el momento

<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8">
    <title>Registration Form</title>
    <link rel="stylesheet" href="styles.css" />
  </head>
  <body>
    <h1>Registration Form</h1>
    <p>Please fill out this form with the required information</p>
    <form method="post" action='https://register-demo.freecodecamp.org'>
      <fieldset>
        <label for="first-name">Enter Your First Name: <input id="first-name" name="first-name" type="text" required /></label>
        <label for="last-name">Enter Your Last Name: <input id="last-name" name="last-name" type="text" required /></label>
        <label for="email">Enter Your Email: <input id="email" name="email" type="email" required /></label>
        <label for="new-password">Create a New Password: <input id="new-password" name="new-password" type="password" pattern="[a-z0-5]{8,}" required /></label>
      </fieldset>
      <fieldset>
        <label for="personal-account"><input id="personal-account" type="radio" name="account-type" class="inline" /> Personal Account</label>
        <label for="business-account"><input id="business-account" type="radio" name="account-type" class="inline" /> Business Account</label>
        <label for="terms-and-conditions">
          <input id="terms-and-conditions" type="checkbox" required name="terms-and-conditions" class="inline" /> I accept the <a href="https://www.freecodecamp.org/news/terms-of-service/">terms and conditions</a>
        </label>
      </fieldset>
      <fieldset>
        <label for="profile-picture">Upload a profile picture: <input id="profile-picture" type="file" name="file" /></label>
        <label for="age">Input your age (years): <input id="age" type="number" name="age" min="13" max="120" /></label>
        <label for="referrer">How did you hear about us?
          <select id="referrer" name="referrer">
            <option value="">(select one)</option>
            <option value="1">freeCodeCamp News</option>
            <option value="2">freeCodeCamp YouTube Channel</option>
            <option value="3">freeCodeCamp Forum</option>
            <option value="4">Other</option>
          </select>
        </label>
        <label for="bio">Provide a bio:
          <textarea id="bio" name="bio" rows="3" cols="30" placeholder="I like coding on the beach..."></textarea>
        </label>
      </fieldset>
      <input type="submit" value="Submit" />
    </form>
  </body>
</html>
/* file: styles.css */
body {
  width: 100%;
  height: 100vh;
  margin: 0;
  background-color: #1b1b32;
  color: #f5f6f7;
  font-family: Tahoma;
  font-size: 16px;
}

h1, p {
  margin: 1em auto;
  text-align: center;
}

form {
  width: 60vw;
  max-width: 500px;
  min-width: 300px;
  margin: 0 auto;
}

fieldset {
  border: none;
  padding: 2rem 0;
  border-bottom: 3px solid #3b3b4f;
}

fieldset:last-of-type {
  border-bottom: none;
}

label {
  display: block;
  margin: 0.5rem 0;
}

input,
textarea,
select {
  margin: 10px 0 0 0;
  width: 100%;
  min-height: 2em;
}

input, textarea {
  background-color: #0a0a23;
  border: 1px solid #0a0a23;
  color: #ffffff;
}

.inline {
  width: unset;
  margin: 0 0.5em 0 0;
  vertical-align: middle;
}

input[type="submit"] {
  display: block;
  width: 60%;
  margin: 1em auto;
  height: 2em;
  font-size: 1.1rem;
  background-color: #3b3b4f;
  border-color: white;
  min-width: 300px;
}


/* User Editable Region */

.input{
  width: 2px;
}

/* User Editable Region */


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Desafío: Aprende formularios HTML construyendo un formulario de registro - Paso 61

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