2021/src/assets/scss/header.scss

@import './color.scss';
@import './breakpoint.scss';

$font-header-link: 'Noto Serif CJK TC -Bold';
$font-header-apply: 'Noto Serif CJK TC -Black';

@mixin headerWidth {
  width: 88%;
  @media screen and (max-width: $max-width-small-0) {
    width: 92%;
  }
}

@mixin headerHeight {
  height: 62px;
  @media screen and (max-width: $max-width-medium-1) {
    height: 75px;
  }
}

// -------------------------------------------

// header-logo
@mixin headerLogoPosition {
  position: absolute;
  left: 35px;
  top: 50%;

  @media screen and (max-width: $max-width-small-1) {
    left: 20px;
  }
  @media screen and (max-width: $max-width-small-3) {
    left: 15px;
  }
}
@mixin headerLogoWidth {
  width: 150px;

  @media screen and (max-width: $max-width-small-1) {
    width: 120px;
  }
  @media screen and (max-width: $max-width-small-2) {
    width: 105px;
  }
  @media screen and (max-width: $max-width-small-3) {
    width: 98px;
  }
}

// -------------------------------------------

// header-links
@mixin headerLinksFontSize {
  font-size: 12pt;
  @media screen and (min-width: $max-width-big) {
    font-size: 13.5pt;
  }
  @media screen and (min-width: $max-width-big-0) {
    font-size: 15pt;
  }
}
@mixin headerLinksWidth {
  width: 600px;

  @media screen and (min-width: $max-width-big) {
    width: 630px;
  }
  @media screen and (min-width: $max-width-big-0) {
    width: 680px;
  }
}
@mixin headerLinksMarginRight {
  margin-right: 92px;
  @media screen and (max-width: $max-width-medium-0) {
    margin-right: -35px;
  }
}
@mixin headerLinksLiPadding {
  padding: 22px 20px;
  @media screen and (max-width: $max-width-medium-0) {
    padding: 22px 8px;
  }
}

// -------------------------------------------

// header-apply
@mixin headerApplyWidthAndHeight {
  width: 92px;
  height: 38px;
  @media screen and (max-width: $max-width-medium-1) {
    width: 85px;
    height: 43px;
  }
  @media screen and (max-width: $max-width-small-1) {
    width: 75px;
    height: 40px;
  }
  @media screen and (max-width: $max-width-small-2) {
    width: 65px;
    height: 38px;
  }
  @media screen and (max-width: $max-width-small-3) {
    width: 55px;
    height: 35px;
  }
}
@mixin headerApplyFontsize {
  font-size: 13pt;
  @media screen and (max-width: $max-width-medium-1) {
    font-size: 12pt;
  }
  @media screen and (max-width: $max-width-small-1) {
    font-size: 11pt;
  }
  @media screen and (max-width: $max-width-small-2) {
    font-size: 9pt;
  }
  @media screen and (max-width: $max-width-small-3) {
    font-size: 8pt;
  }
}

// -------------------------------------------

// header-links--mobile
@mixin headerLinksMobilePosition {
  position: relative;
  left: 40%;
  top: 12px;

  @media screen and (max-width: $max-width-small-0) {
    left: 35%;
  }
  @media screen and (max-width: $max-width-small-1) {
    left: 28%;
  }
}
@mixin headerLinksMobileSelectWidth {
  width: 150px;
  @media screen and (max-width: $max-width-small-0) {
    width: 120px;
  }
  @media screen and (max-width: $max-width-small-1) {
    width: 110px;
  }
  @media screen and (max-width: $max-width-small-2) {
    width: 95px;
  }
  @media screen and (max-width: $max-width-small-3) {
    width: 85px;
  }
}
@mixin headerLinksMobileSelectFontsize {
  font-size: 14pt;

  @media screen and (max-width: $max-width-small-0) {
    font-size: 13pt;
  }
  @media screen and (max-width: $max-width-small-2) {
    font-size: 11pt;
  }
  @media screen and (max-width: $max-width-small-3) {
    font-size: 9pt;
  }
}
@mixin headerLinksMobileSelectPadding {
  padding-left: 10px;
  padding-bottom: 10px;

  @media screen and (max-width: $max-width-small-0) {
    padding-left: 3px;
    padding-bottom: 10px;
  }
  @media screen and (max-width: $max-width-small-3) {
    padding-bottom: 7px;
  }
}

// ----------------------------------------------------------------------------------------------

.header {
  z-index: 99;
  position: relative;
  top: 35px;
  margin: 0 auto;
  @include headerWidth;
  @include headerHeight;
  border-radius: 73px;
  box-shadow: 0 6px 18px 0 rgba(0, 0, 255, 0.22);
  background-color: $white;

  &--sticky {
    position: sticky;
    z-index: 99;
    margin-top: 60px;
  }
  &__left {
    float: left;
    width: 20%;
  }

  &-logo {
    @include headerLogoPosition;
    @include headerLogoWidth;
    transform: translateY(-50%);
  }

  &__right {
    float: right;
    width: 80%;
    // background-color: lightslategrey;
  }

  &-links {
    &--mobile {
      @media screen and (min-width: $max-width-medium-1) {
        display: none;
        visibility: hidden;
      }

      // background-color: lightyellow;
      @include headerLinksMobilePosition;
      left: 40%;
      select {
        z-index: 99;
        @include headerLinksMobileSelectWidth;
        height: 60px;
        @include headerLinksMobileSelectPadding;
        font-family: $font-header-link;
        @include headerLinksMobileSelectFontsize;
        background-color: $white;
        border: none;
        border-bottom: 4px solid $indigo-blue;

        &:focus {
          border: none;
          outline: none;
        }

        option {
          text-align: center;
          @include headerLinksMobileSelectFontsize;
        }
      }
      select:focus ~ &-bg {
        opacity: 1;
        display: block;
        transition: 0.3s linear;
      }

      &-bg {
        z-index: 90;
        opacity: 0;
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 100vw;
        background-color: rgba($black, 0.5);
        backdrop-filter: blur(3px);
      }
    }
    @media screen and (max-width: $max-width-medium-1) {
      display: none;
      visibility: hidden;
    }

    font-family: $font-header-link;
    float: right;
    @include headerLinksWidth;
    @include headerLinksMarginRight;
    height: 100%;
    height: 50px;
    top: 6px;

    ul {
      margin: 0;
      padding: 0;
      width: 100%;
      height: 100%;

      li {
        float: left;
        margin: 0;
        padding: 0;
        height: 100%;
        display: block;
        text-align: left;
        @include headerLinksLiPadding;

        a {
          @include headerLinksFontSize;
          color: $black;
          padding-bottom: 15px;
        }
      }
    }
  }

  &-link--active {
    border-bottom: $indigo-blue solid 3.5px;
  }

  &-apply {
    font-family: $font-header-apply;
    @include headerApplyWidthAndHeight;
    border-radius: 38px;
    background-color: $indigo-blue;
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);

    a {
      @include headerApplyFontsize;
      color: $white;
      position: absolute;
      top: 50%;
      left: 40%;
      transform: translateX(-35%) translateY(-50%);
    }
  }
}