<div class="page-wrapper">
 <div class="nav-wrapper">
  <div class="grad-bar"></div>
  <nav class="navbar">
    <img src="https://upload.wikimedia.org/wikipedia/en/thumb/c/c8/Bluestar_%28bus_company%29_logo.svg/1280px-Bluestar_%28bus_company%29_logo.svg.png" alt="Company Logo">
    <div class="menu-toggle" id="mobile-menu">
      <span class="bar"></span>
      <span class="bar"></span>
      <span class="bar"></span>
    </div>
    <ul class="nav no-search">
      <li class="nav-item"><a href="#">Home</a></li>
      <li class="nav-item"><a href="#">About</a></li>
      <li class="nav-item"><a href="#">Work</a></li>
      <li class="nav-item"><a href="#">Careers</a></li>
      <li class="nav-item"><a href="#">Contact Us</a></li>
      <i class="fas fa-search" id="search-icon"></i>
      <input class="search-input" type="text" placeholder="Search..">
    </ul>
  </nav>
  </div>
  <section class="headline">
    <h1>Responsive Navigation</h1>
    <p>Using CSS grid and flexbox to easily build navbars!</p>
  </section>
  <section class="features">
    <div class="feature-container">
      <img src="https://cdn-images-1.medium.com/max/2000/1*HFAEJvVOq4AwFuBivNu_OQ.png" alt="Flexbox Feature">
      <h2>Flexbox Featured</h2>
      <p>This pen contains use of flexbox for the headline and feature section! We use it in our mobile navbar and show the power of mixing css grid and flexbox.</p>
    </div>
    <div class="feature-container">
      <img src="https://blog.webix.com/wp-content/uploads/2017/06/20170621-CSS-Grid-Layout-710x355-tiny.png" alt="Flexbox Feature">
      <h2>CSS Grid Navigation</h2>
      <p>While flexbox is used for the the mobile navbar, CSS grid is used for the desktop navbar showing many ways we can use both.</p>
    </div>
    <div class="feature-container">
      <img src="https://www.graycelltech.com/wp-content/uploads/2015/06/GCT-HTML5.jpg" alt="Flexbox Feature">
      <h2>Basic HTML5</h2>
      <p>This pen contains basic html to setup the page to display the responsive navbar.</p>
    </div>
  </section>
</div>

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Lato', 'Arial', sans-serif;
}

/* HEADINGS */

h1, p {
  color: #fff;
  text-align: center;
  line-height: 1.4;
}

h1 {
  font-size: 2.2rem;
}

h2 {
  color: #000;
  font-size: 1.3rem;
  text-align: center;
  line-height: 1.4;
  margin-bottom: 10px;
}

/* BASIC SETUP */

.page-wrapper {
  width: 100%;
  height: auto;
}

.nav-wrapper {
  width: 100%;
  position: -webkit-sticky; /* Safari */
  position: sticky;
  top: 0;
  background-color: #fff;
}

.grad-bar {
  width: 100%;
  height: 5px;
  background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
  background-size: 400% 400%;
  	-webkit-animation: gradbar 15s ease infinite;
	-moz-animation: gradbar 15s ease infinite;
	animation: gradbar 15s ease infinite;
}

/* NAVIGATION */

.navbar {
  display: grid;
  grid-template-columns: 1fr 3fr;
  align-items: center;
  height: 50px;
  overflow: hidden;
}

.navbar img {
  height: 16px;
  width: auto;
  justify-self: start;
  margin-left: 20px;
}

.navbar ul {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(6,1fr);
  justify-self: end;
  
}

.nav-item a {
  color: #000;
  font-size: 0.9rem;
  font-weight: 400;
  text-decoration: none;
  transition: color 0.3s ease-out;
}

.nav-item a:hover {
  color: #3498db;
}

/* SECTIONS */

.headline {
  width: 100%;
  height: 50vh;
  min-height: 350px;
  background: linear-gradient(rgba(0,0,0,0.3),rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1435224668334-0f82ec57b605?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1yZWxhdGVkfDd8fHxlbnwwfHx8fA%3D%3D&w=1000&q=80');
  background-size: cover;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.features {
  width: 100%;
  height: auto;
  background-color: #f1f1f1;
  display: flex;
  padding: 50px 20px;
  justify-content: space-around;
}

.feature-container {
  flex-basis: 30%;
  margin-top: 10px;
}

.feature-container p {
  color: #000;
  text-align: center;
  line-height: 1.4;
  margin-bottom: 15px;
}

.feature-container img {
  width: 100%;
  margin-bottom: 15px;
}

/* SEARCH FUNCTION */

#search-icon {
  font-size: 0.9rem;
  margin-top: 3px;
  margin-left: 15px;
  transition: color 0.3s ease-out;
}

#search-icon:hover {
  color: #3498db;
  cursor: pointer;
}

.search {
  transform: translate(-35%);
  -webkit-transform: translate(-35%);
  transition: transform 0.7s ease-in-out;
  color: #3498db;
}

.no-search {
  transform: translate(0);
  transition: transform 0.7s ease-in-out;
}

.search-input {
  position: absolute;
  top: -4px;
  right: -125px;
  opacity: 0;
  z-index: -1;
  transition: opacity 0.6s ease;
}

.search-active {
  opacity: 1;
  z-index: 0;
}

input {
  border: 0;
  border-left: 1px solid #ccc;
  border-radius: 0; /* FOR SAFARI */
  outline: 0;
  padding: 5px;
}

/* MOBILE MENU & ANIMATION */

.menu-toggle .bar{
  width: 25px;
  height: 3px;
  background-color: #3f3f3f;
  margin: 5px auto;
  -webkit-transition: all 0.3s ease-in-out;
  -o-transition: all 0.3s ease-in-out;
  transition: all 0.3s ease-in-out;
}

.menu-toggle {
  justify-self: end;
  margin-right: 25px;
  display: none;
}

.menu-toggle:hover{
  cursor: pointer;
}

#mobile-menu.is-active .bar:nth-child(2){
  opacity: 0;
}

#mobile-menu.is-active .bar:nth-child(1){
  -webkit-transform: translateY(8px) rotate(45deg);
  -ms-transform: translateY(8px) rotate(45deg);
  -o-transform: translateY(8px) rotate(45deg);
  transform: translateY(8px) rotate(45deg);
}

#mobile-menu.is-active .bar:nth-child(3){
  -webkit-transform: translateY(-8px) rotate(-45deg);
  -ms-transform: translateY(-8px) rotate(-45deg);
  -o-transform: translateY(-8px) rotate(-45deg);
  transform: translateY(-8px) rotate(-45deg);
}

/* KEYFRAME ANIMATIONS */

@-webkit-keyframes gradbar {
	0% {
		background-position: 0% 50%
	}
	50% {
		background-position: 100% 50%
	}
	100% {
		background-position: 0% 50%
	}
}

@-moz-keyframes gradbar {
	0% {
		background-position: 0% 50%
	}
	50% {
		background-position: 100% 50%
	}
	100% {
		background-position: 0% 50%
	}
}

@keyframes gradbar {
	0% {
		background-position: 0% 50%
	}
	50% {
		background-position: 100% 50%
	}
	100% {
		background-position: 0% 50%
	}
}

/* Media Queries */

  /* Mobile Devices - Phones/Tablets */

@media only screen and (max-width: 720px) { 
  .features {
    flex-direction: column;
    padding: 50px;
  }
  
  /* MOBILE HEADINGS */
  
  h1 {
    font-size: 1.9rem;
  }
  
  h2 {
    font-size: 1rem;
  }
  
  p {
    font-size: 0.8rem;
  }
  
  /* MOBILE NAVIGATION */
     
  .navbar ul {
    display: flex;
    flex-direction: column;
    position: fixed;
    justify-content: start;
    top: 55px;
    background-color: #fff;
    width: 100%;
    height: calc(100vh - 55px);
    transform: translate(-101%);
    text-align: center;
    overflow: hidden;
  }
  
  .navbar li {
    padding: 15px;
  }
  
  .navbar li:first-child {
    margin-top: 50px;
  }
  
  .navbar li a {
    font-size: 1rem;
  }
   
  .menu-toggle, .bar {
    display: block;
    cursor: pointer;
  }
  
  .mobile-nav {
  transform: translate(0%)!important;
}
  
  /* SECTIONS */
  
  .headline {
    height: 20vh;
  }
    
  .feature-container p {
    margin-bottom: 25px;
  }
  
  .feature-container {
    margin-top: 20px;
  }
  
  .feature-container:nth-child(2) {
    order: -1;
  }
  
  /* SEARCH DISABLED ON MOBILE */
  
  #search-icon {
    display: none;
  }
  
  .search-input {
  display: none;
 }
  
}

$("#search-icon").click(function() {
  $(".nav").toggleClass("search");
  $(".nav").toggleClass("no-search");
  $(".search-input").toggleClass("search-active");
});

$('.menu-toggle').click(function(){
   $(".nav").toggleClass("mobile-nav");
   $(this).toggleClass("is-active");
});