عدم کارکرد کدها

<!DOCTYPE html>
<html lang="fa">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>project15</title>
    <script
      src="https://kit.fontawesome.com/cac5ba1843.js"
      crossorigin="anonymous"
    ></script>
    <link
      rel="stylesheet"
      href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@20..48,100..700,0..1,-50..200"
    />
    <link rel="stylesheet" href="/assets/css/style.css" />
    <style>
      * {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
      }
      body {
        background-color: #f0d4c3;
        position: relative;
      }
      ul {
        list-style: none;
      }
      .container {
        position: relative;
      }
      .left {
        position: absolute;
        width: 50%;
        height: 100%;
        left: 0;
      }
      .right {
        position: absolute;
        width: 50%;
        height: 100%;
        right: 0;
      }
      h1 {
        position: absolute;
        top: 200px;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 36px;
        white-space: nowrap;
        /* color: #fff; */
      }
      h1::after {
        content: "";
        position: absolute;
        width: 0x;
        height: 4px;
        bottom: -8px;
        color: #000;
        left: 0;
        transition: all 500ms ease-in-out;
      }
      .cta-btn {
        position: absolute;
        width: 100px;
        height: 50px;
        line-height: 1;
        padding: 12px;
        text-align: center;
        font-size: 18px;
        border: 2px solid #000;
        transform: translate(-50%, -50%);
        top: 600px;
        left: 450px;
        /* color: #fff; */
      }
      .cta-btn::after {
        content: "";
        position: absolute;
        width: 100%;
        height: 0;
        color: #000;
        left: 0;
        bottom: 0;
        transition: all 500ms ease-in-out;
      }
      .cta-btn:hover::after {
        height: 4px;
      }
      h1:hover::after {
        width: 100%;
      }
      .container {
        position: relative;
        width: 100%;
        height: 100%;
        background-color: blue;
      }
      .container .half {
        position: absolute;
        width: 50%;
        height: 100%;
        background-color: red;
      }
      .container .right {
        position: absolute;
        right: 0;
        width: 50%;
        height: 100%;
        background: url(assets/img/a3.jpg);
        background-size: cover;
         transition: all 500ms ease-in-out;
      }
      .container .right::before {
        content: "";
        width: 100%;
        height: 100%;
        background: rgba(255, 0, 120, 0.5);
        position: absolute;
      }
      .container .left {
        position: absolute;
        left: 0;
        width: 50%;
        height: 100%;
        background: url(assets/img/a3.jpg);
        background-size: cover;
         transition: all 500ms ease-in-out;
      }
      .container .left::before {
        content: "";
        width: 100%;
        height: 100%;
        background: rgba(255, 0, 120, 0.5);
        position: absolute;
        transition: all 500ms ease-in-out;
      }
      .left-is-hovered .left {
        width: 85%;
      }
      .left-is-hovered .left h1::after {
        width: 100%;
      }
      .left-is-hovered .right {
        width: 15%;
      }
      .left-is-hovered .right::before {
        background: rgba(0, 0, 0, 0.65);
        z-index: 2;
      }
.right-is-hovered .right {
        width: 85%;
      }
      .right-is-hovered .right h1::after {
        width: 100%;
      }
      .right-is-hovered .left {
        width: 15%;
      }
      .right-is-hovered .left::before {
        background: rgba(0, 0, 0, 0.65);
        z-index: 2;
      }
    </style>
  </head>
  <body>
    <!-- <p class="course-title">پروژه شماره 15</p> -->
    <div class="container">
      <div class="half left">
        <h1>دوره جامع طراحی وب</h1>
        <a href="#" class="cta-btn">آماده ای؟</a>
      </div>
      <div class="half right">
        <h1>دوره جامع وردپرس</h1>
        <a href="#" class="cta-btn">بزن بریم</a>
      </div>
    </div>
    <script
      src="https://code.jquery.com/jquery-3.7.1.js"
      integrity="sha256-eKhayi8LEQwp4NKxN+CfCh+3qOVUtJn3QNZ0TciWLP4="
      crossorigin="anonymous"
    ></script>
    <script>
      $(document).ready(function(){
        var right= $('.right');
        var left= $('left');
        right.mouseenter(function(){
          $('.container').addClass('right-is-hovered')
        });
           right.mouseleave(function(){
          $('.container').removeClass('right-is-hovered')
        });
          left.mouseenter(function(){
          $('.container').addClass('left-is-hovered')
        });
           left.mouseleave(function(){
          $('.container').removeClass('left-is-hovered')
        });
      });
    </script>
  </body>
</html>