Bootstrap navbar overflowing

Here’s the navbar code:

<header>
  <nav class="sticky-top navbar navbar-expand-md bg-body-light border-bottom ">
    <div class="container-fluid">
      <a class="navbar-brand" href="/listings"
        ><b><i class="fa-brands fa-airbnb"></i> WanderLust</b></a
      >
      <button
        class="navbar-toggler"
        type="button"
        data-bs-toggle="collapse"
        data-bs-target="#navbarNavAltMarkup"
      >
        <span class="navbar-toggler-icon"></span>
      </button>
      <div class="collapse navbar-collapse" id="navbarNavAltMarkup">
        <div class="navbar-nav">
          <a class="nav-link" href="/listings">Explore</a>
          <a class="nav-link" href="/listings/new">Airbnb Your Home</a>
        </div>
        <div class="navbar-nav ms-auto">
          <form class="d-flex" role="search">
            <input
              class="form-control me-2"
              id="search-in"
              placeholder="Search destinations"
              aria-label="Search"
            />
            <button class="btn" id="search-btn" type="submit">
              <i class="fa-solid fa-magnifying-glass"></i>Search
            </button>
          </form>
        </div>
        <div class="navbar-nav ms-auto">
          <% if (!currUser){ %>
          <a class="nav-link" href="/signup"><b>Sign Up</b></a>
          <a class="nav-link" href="/login"><b>Log In</b></a>
          <% } %> <% if (currUser){ %>
          <a class="nav-link" href="/logout"><b>Log Out</b></a>
          <% } %>
        </div>
      </div>
    </div>
  </nav>
</header>

Here’s the boilerplate code:

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>WanderLust</title>
    <link rel="stylesheet" href="/css/style.css" />
    <link
      href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
      rel="stylesheet"
      integrity="sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bRjXh0JMhjY6hW+ALEwIH"
      crossorigin="anonymous"
    />
    <link
      rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css"
      integrity="sha512-DTOQO9RWCH3ppGqcWaEA1BIZOC6xxalwEsw9c2QQeAIftl+Vegovlnee1c9QX4TctnWMn13TZye+giMm8e2LwA=="
      crossorigin="anonymous"
      referrerpolicy="no-referrer"
    />
    <link
      href="https://api.mapbox.com/mapbox-gl-js/v3.2.0/mapbox-gl.css"
      rel="stylesheet"
    />
    <script src="https://api.mapbox.com/mapbox-gl-js/v3.2.0/mapbox-gl.js"></script>

    <link rel="stylesheet" href="/css/rating.css" />
  </head>

  <body>
    <%- include('../includes/navbar.ejs') %> <%-include('../includes/flash.ejs')
    %>

    <div class="container"><%- body %></div>

    <%- include('../includes/footer.ejs') %>

    <script
      src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"
      integrity="sha384-YvpcrYf0tY3lHB60NNkmXc5s9fDVZLESaAA55NDzOxhy9GkcIdslK1eN7N6jIeHz"
      crossorigin="anonymous"
    ></script>
    <script src="/js/script.js"></script>
  </body>
</html>

When I’m adding the css to boilerplate code the navbar starts to overflow.

Here’s the css code:

* {
  margin: 0;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  flex: 1;
}

/* Navbar */
.navbar {
  height: 5rem;
  background-color: white;
 
}

.fa-airbnb {
  color: #ff5a5f;
}

.nav-link {
  color: black !important;
}

/* Seach Bar */
#search-btn {
  background-color: #ff5a5f;
  color: white;
  border-radius: 25px;
  padding: 0 1rem 0 1rem;
}
#search-btn i {
  display: inline;
  margin-right: 0.5rem;
}

#search-in {
  border-radius: 25px;
  padding: 0.5rem 3rem 0.5rem 3rem;
}

When I remove the navbar height the overflowing is fixed but I want it to be 5rems.
The navbar is content comes out of the 5rem nav bar and merges with the main body content and what ever I do it doesn’t help.

I have been trying to fix it for 3 days but nothing’s working, this is my first full-stack project and I need serious help here.

I tried removing the height and overflow control but nothing worked.