<header>
  <div class="container">
    <div class="fix"></div>
    <div class="main">
      <div class="logo-container">
        <div class="secondary"></div>
        <div class="primary logo"><a>LOGO</a></div>
      </div>
      <nav class="nav">
        <div class="primary">
          <div class="links">
            <ul>
              <li class="styledlink root"><a>Item 01</a></li>
              <li class="styledlink root"><a>Item 02</a></li>
              <li class="styledlink root"><a>Item 03</a></li>
              <li class="styledlink root"><a>Item 04</a></li>
            </ul>
          </div>
        </div>
        <div class="secondary central">
          <div class="links">
            <ul>
              <li class="styledlink"><a>Submenu 01</a></li>
              <li class="styledlink"><a>Submenu 02</a></li>
              <li class="styledlink"><a>Submenu 03</a></li>
            </ul>
          </div>
        </div>
      </nav>
      <div class="cta-container">
        <div class="secondary"></div>
        <div class="primary cta"><a>CTA EXAMPLE</a></div>
      </div>
    </div>
    <div class="hamburger"></div>
  </div>
</header>

/* 54 i 35 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
li,
figure,
figcaption,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  list-style: none;
  padding: 0;
}

header {
  box-sizing: border-box;
  height: auto;
  padding: 0;
  pointer-events: none;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1080;
}

.container {
  background: #fff;
  box-shadow: 0px 0px 20px 0px rgba(122, 122, 122, 0.1);
  display: flex;
  pointer-events: auto;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: -1;
}

.fix {
  display: none;
}

.main {
  display: flex;
  flex-direction: row;
}

.main .logo-container a {
  line-height: 0;
}

.main .logo-container {
  flex: 1;
}

.main .cta-container {
  align-items: center;
  background: #fff;
  bottom: 0;
  display: flex;
  justify-content: center;
  left: 0;
  padding: 16px 40px;
  position: fixed;
  width: 100vw;
}

.primary {
  align-items: center;
  display: flex;
  background: #fff;
}

.primary.logo {
  justify-content: flex-end;
  height: 54px;
  margin-left: 24px;
}

.primary.cta {
  justify-content: center;
  width: 100%;
}

.secondary {
  align-items: center;
  display: flex;
}

.secondary .links ul .styledlink a,
.secondary .links ul .styledlink button {
  color: #646060;
  justify-content: flex-start;
}

.styledlink {
  padding: 24px 0;
  position: relative;
  width: 100%;
}

.styledlink button {
  padding-right: 8px;
  width: 100%;
}

.styledlink a,
.styledlink button {
  align-items: center;
  color: #303030;
  display: flex;
  justify-content: space-between;
  margin-left: 24px;
  text-decoration: none;
}

.nav {
  background: #fff;
  display: flex;
  flex-direction: column;
  height: calc(100vh - 54px);
  left: 0;
  overflow-x: hidden;
  overflow-y: auto;
  position: fixed;
  top: 54px;
  transform: translateX(100%);
  transition: 0.65s;
  width: 100%;
  z-index: 1080;
}

.nav.open {
  transform: translateX(0);
}

.nav .links {
  flex: initial;
  width: 100%;
}

.nav .links ul {
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}


@media (min-width: 960px) {
  header {
    top: -35px;
  }

  .container {
    align-items: center;
    flex-direction: column;
    position: sticky;
  }

  .fix {
    display: initial;
    height: 35px;
    background: #f7f7f7;
    position: absolute;
    width: 100%;
  }

  .main {
    position: relative;
    max-width: 1280px;
    width: 100%;
  }

  .main .logo-container {
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    height: auto;
  }

  .main .logo-container .logo {
    margin-left: 8px;
    justify-content: flex-start;
  }

  .main .cta-container {
    align-items: flex-end;
    flex-direction: column;
    flex: 1;
    height: auto;
    justify-content: flex-end;
    margin-right: 8px;
    padding: initial;
    position: initial;
    width: auto;
  }

  .primary {
    height: 54px;
    width: 100%;
  }

  .primary.logo {
    margin-left: auto
  }

  .primary.cta {
    justify-content: flex-start;
    width: auto;
  }

  .secondary {
    width: auto;
    background: #f7f7f7;
    height: 35px;
    width: 100%;
  }

  .secondary.central {
    width: auto;
    position: absolute;
    top: 0;
    right: 0;
  }

  .styledlink {
    padding: 16px 16px;
    width: auto;
  }

  .styledlink button {
    padding-right: 0;
  }

  .styledlink a,
  .styledlink button {
    margin: 0;
  }

  .nav {
    align-items: center;
    background: #f7f7f7;
    flex-direction: column-reverse;
    flex: 7;
    height: auto;
    overflow-x: initial;
    overflow-y: initial;
    position: initial;
    transform: initial;
    width: auto;
  }

  .nav .links ul {
    flex-direction: row;
    justify-content: flex-end;
  }

  .nav .primary .links ul .styledlink {
    display: flex;
    height: 54px;
    padding: 0 16px;
  }
}