hugo-theme-terminal/source/css/header.css

.header {
  display: flex;
  flex-direction: column;
  position: relative;

  &__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  &__logo {
    display: flex;
    flex: 1;

    &:after {
      content: '';
      background: repeating-linear-gradient(90deg, var(--accent), var(--accent) 2px, transparent 0, transparent 10px);
      display: block;
      width: 100%;
      right: 10px;
    }

    a {
      flex: 0 0 auto;
      max-width: 100%;
    }
  }

  .menu {
    margin: 20px 0;

    @media (--phone) {
      position: absolute;
      background: var(--background);
      border: 2px solid;
      top: 50px;
      right: 0;
      margin: 0;
      padding: 10px;
      z-index: 99;
    }

    &__inner {
      display: flex;
      list-style: none;
      margin: 0;
      padding: 0;

      li {
        &:not(:last-of-type) {
          margin-right: 20px;
        }
      }

      @media (--phone) {
        flex-direction: column;
        align-items: flex-start;
        padding: 0;

        li {
          margin: 0;
          padding: 5px;
        }
      }
    }

    &-trigger {
      color: var(--accent);
      border: 2px solid;
      margin-left: 10px;
      height: 100%;
      padding: 3px 8px;
      position: relative;
    }
  }
}