// font
$fontFamily: 'Noto Sans TC', sans-serif;
$fontStyle: normal;
$light-blue: #3D93E9;
$fontColor: #226bb4;
$buttonHoverColor: #ffffff;
@mixin Font() {
  font-family: $fontFamily;
}
@mixin hyperlinkFont() {
  text-decoration: underline;
}
// font size
$h1FontSize: 30px;
$h2FontSize: 24px;
$h3FontSize: 16px;
$contextFontSize: 13px;
$buttonFontSize: 24px;

$mh1FontSize: 26px;
$mh2FontSize: 20px;
$mh3FontSize: 14px;
$mcontextFontSize: 14px;
$mbuttonFontSize: 18px;
$hyperlinkFontSize: 14px;

$enlargeFontSize: 55px;
$subFontSize: 30px;
// letter spacing
$titleLetterSpace: 0;
$contextLetterSpace: 0.2px;
$buttonLetterSpace: 0;
$hyperlinkLetterSpace: 0;

// background
$buttonHoverBg: #226BB4;

#cfp {
  .introduction-container {
    overflow-x: hidden;
    overflow-y: hidden; 
    margin: -8px;
    position:relative;
  }

  .introduction {
    // flex
    display: flex;
    flex-direction: column;
    align-items: left;
    // font
    @include Font;
    color: $fontColor;
    // size
    margin-left: 15%;
    margin-top: 50%;

    @media screen and(max-width: 414px) {
      width:100%;
    }
  }

  .about-section {
    // font
    font-size: $contextFontSize;
    letter-spacing: $contextLetterSpace;
    line-height: 42px;
    width:90%;

    @media screen and(max-width: 414px) {
      font-size: $mcontextFontSize;
      width:160%;
    }
  }

  .discuss-section {
    font-size: $contextFontSize;
    letter-spacing: $contextLetterSpace;
    line-height: 42px;

    @media screen and(max-width: 414px) {
      font-size: $mcontextFontSize;
      width:80%;
    }
  }

  .topic-intro {
    // size
    margin-top: 130px;
    // font
    font-size: $contextFontSize;
    letter-spacing: $contextLetterSpace;
    line-height: 42px;

    width: 1100px;

    @media screen and(max-width: 414px) {
      margin-top: 60%;
      width: 110%;
    }
  }

  .last-part {
    // size
    margin-top: 70px;
    height: 325px;
    // font
    font-size: $contextFontSize;
    letter-spacing: $contextLetterSpace;
    line-height: 42px;

    @media screen and(max-width: 414px) {
      margin-top: 30%;
      width: 70%;
      margin-bottom: 30%;
    }
  }

  .buttons {
    // font
    color: $fontColor;
    font-size: $buttonFontSize;
    font-weight: 900;
    letter-spacing: $buttonLetterSpace;
    line-height: 30px;
    // size
    margin-right: 37px;
    padding: 12px 15px 12px 15px;
    // box
    background-color: #ffffff;
    box-shadow: 0 3px 12px 0 rgba(89, 120, 206, 0.56);
    transition-duration: 0.2s;
    border: none;
    border-radius: 8px;
    // display
    display: inline-block;
    
    position: relative;
    z-index: 5;

    @media screen and (max-width: 414px) {
      font-size: $mbuttonFontSize;
      font-weight: 900;
      letter-spacing: 0px;
      color: $fontColor;
      text-align: center;
      opacity: 1;
      border-radius: 6px;
      padding: 10px 8px 10px 8px;
      margin-right: 15px;
      margin-top: 20px;
    }
  }

  .button-post {
    // display
    display: inline;
    // size
    margin-left: 40px;
    margin-top: -20px;

    z-index: 2;

    @media screen and (max-width: 414px) {
      width: 414px;
      margin-left: 0px;
    }
  }

  .buttons:hover {
    // box
    background-color: $buttonHoverBg;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.2), 0 0 20px rgba(0, 0, 0, 0.19);
    // font
    h3 {
      color: $buttonHoverColor;
    }
  }

  .date {
    // display
    display: inline;
    // size
    margin-right: 35px;
    // align
    vertical-align: bottom;
    line-height: 30px;

    @media screen and(max-width:414px){
      font-size: 30px;
      margin-right: 10px;
      line-height: 50px;
      vertical-align:middle;
    }
  }
}

h1, h2, h3, p, span {
  font-family: $fontFamily;
  color: $fontColor;
}

h1 {
  // font
  font-size: $h1FontSize;
  line-height: 70px;
  font-weight: 900;
  letter-spacing: $titleLetterSpace;

  .enlarge {
    font-size: $enlargeFontSize;
    @media screen and (max-width: 414px) {
      line-height: 80px;
    }
  }

  .sub {
    font-size: $subFontSize;
  }

  @media screen and (max-width: 414px) {
    line-height: 20px;
  }
}

.right {
  text-align: left;

  @media screen and (max-width: 414px) {
    text-align: right;
    margin-right: 30%;
  }
}

h2 {
  // font
  font-size: $h2FontSize;
  letter-spacing: $titleLetterSpace;
  font-weight: 900;
  line-height: 70px;
  margin: 0px;
}

h3 {
  // Font
  font-size: $h3FontSize;
  letter-spacing: $titleLetterSpace;
  font-weight: 900;
  line-height: 15px;
  margin: 0px;
}

.about-section > .context {
  margin-right: 50%;
}

.topic-intro > .context {
  margin-right: 30%;
}

.context {
  // font
  font-size: $contextFontSize;
  line-height: 30px;
  letter-spacing: $contextLetterSpace;
  font-weight: normal;
}

.detail {
  // display
  display: inline;
  // font
  font-size: $contextFontSize;
  line-height: 20px;
  letter-spacing: $contextLetterSpace;
  font-weight: normal;
  // align
  vertical-align: bottom;
  // size

  @media screen and (max-width: 414px) {
    margin-right: 25%;
    line-height: 35px;
    font-size: $mcontextFontSize;
  }
}

.context-span {
  // font
  font-size: $contextFontSize;
  font-weight: 900;
  letter-spacing: $contextLetterSpace;
  line-height: 42px;
}

.context-hyperlink {
  // font
  font-size: $hyperlinkFontSize;
  letter-spacing: $hyperlinkLetterSpace;
  color: $light-blue;
  font-weight: normal;
  line-height: 42px;
}

p.tag {
  // font
  font-size: 14px;
  line-height: 15px;
  letter-spacing: 0;
  font-weight: 900;
  // align
  text-align: center;
  margin-top: 0px;
  margin-bottom: 5px;

  @media screen and (max-width: 414px) {
    font-size: 16px;
  }
}

p.tag.sub {
    font-size: 12px;
    line-height: 10px;

    @media screen and (max-width: 414px) {
      font-size: 12px;
      margin-top: 8px;
    }
}

p.small-tag {
  margin-block-start: 0em;
  margin-block-end: 0.5em;
  font-size: 12px;
  text-align: center;

  @media screen and (max-width: 414px) {
    line-height:12px;
    font-size: 10px;
  }
}

//NOTE: the size should be smaller, this temporary size is provided to support min font size of browser
.cfp-img {
  // box
  border-radius: 4px;
  margin-bottom: 12px;
  // size
  width: 175px;
  height: 118px;
  box-shadow: 0 3px 12px 0 rgba(89, 120, 206, 0.56);
  
  @media screen and (max-width:414px){
    border-radius: 2px;
    margin-bottom: 12px;
    width: 111px;
    height: 75px;
    box-shadow: 0px 1px 6px rgba(89, 120, 206, 0.56);
  }
}

.thumbnails {
  // box
  margin-left: -20.5px;

  @media screen and (max-width:414px){
    margin-left: -9px;
  }
}

.img-table {
  // box
  border-style: none;
  border-spacing: 25.5px 0px; //25.5
  text-align: center; 
  width: 640px;

  @media screen and (max-width: 414px) {
    width: 87%;
    align-content: center;
    border-spacing: 0px 0px;
  }
}

.td-width {
  vertical-align: top;

  @media screen and (max-width: 414px){
    text-align: center;
    width: 123px;
  }
}

.tag-table{
  // box
  border-style: none;
  border-spacing: 0px 0px; //25.5
  // size
  width: 500px;
}

.first-box {
  box-shadow: 0 3px 12px 0 rgba(89, 120, 206, 0.56);
  border-radius: 60px; 
  transform: rotate(15deg); 
  margin-bottom: -800px; 
  margin-left: -200px;
  margin-top: -300px;
  z-index: 1;

  @media screen and(max-width: 960px){
    border-radius: 40px; 
    margin-bottom: -800px;
    transform: rotate(13deg);
  }

  @media screen and(max-width: 414px){
    border-radius: 27px; 
    margin-top: 200px;
    margin-bottom: -870px;
    margin-left: -150px;
    transform:scale(1);
    transform: rotate(12deg);
  }
}

.second-box {
  box-shadow: 0 3px 12px 0 rgba(89, 120, 206, 0.56);
  border-radius: 32px; 
  transform: rotate(15deg); 
  margin-top: 270px;
  margin-bottom: -1900px; 
  margin-left: -700px;
  z-index: 1;

  @media screen and(max-width: 414px){
    box-shadow: -10px 30px 30px 0 rgba(135, 152, 199, 0.56);
    margin-top: 5px;
    margin-left: -415px;
    margin-bottom: -1560px;
    transform: rotate(12deg) scale(0.6);
    z-index: 2;
  }
}

.hiden-box {
  position: absolute;
  margin-top: 1200px;
  margin-left:-300px;
  margin-bottom: 0px;
  z-index: -1;
  @media screen and(max-width: 414px){
    margin-top: 1400px;
    transform: rotate(12deg);
    z-index: -1;
  }
}

.box-back {
  z-index: 2;

  @media screen and(max-width: 960px) {
    margin-top: -10%;
    margin-left: -10%;
  }

  @media screen and(max-width: 414px) {
    margin-top: -10%;
    margin-left: -10%;
  }
}

.box-back2 {
  z-index: 2;

  @media screen and(max-width: 960px) {
    margin-top: -10%;
    margin-left: -10%;
  }

  @media screen and(max-width: 414px) {
    margin-top: -10%;
    margin-left: -10%;
  }
}

.SITCON-text-path {
  transform: scale(0.7);
  padding-left: 300px;
  margin-right: -550px;
  margin-bottom: -600px; 
  padding-top: 300px;
  z-index: 2;
  @media screen and(max-width: 414px) {
    z-index: -2;
  }
}

.des-text-path {
  //background: url(../../assets/images/cfp/Path_762.svg) no-repeat;
  transform: scale(0.7); 
  margin-bottom: -565px; 
  padding-top: 65px; 
  margin-left: -350px; 
  z-index: 2;

  @media screen and(max-width: 960px){
    margin-left: -150px; 
    margin-bottom: -545px; 
  }

  @media screen and(max-width: 414px){
    //background-image: url(../../assets/images/cfp/Mobile/Path_763.svg);
    margin-top: 40px;
    margin-left: -80px;
    transform: scale(0.9); 
    background: url(./assets/images/cfp/Mobile/Path_763.svg) no-repeat;
    padding-top: -565px; 
    margin-bottom: -665px;
  }
  
}

.des-blue-bar {
  transform: rotate(15deg); 
  margin-left: -400px; 
  margin-top: 360px; 
  margin-bottom: -1360px;

  @media screen and(max-width: 414px){
    margin-left: -600px; 
    margin-top: 160px;
    transform: rotate(12deg) scale(0.6);
  }
}

.paper-image {
  transform: scale(0.75); 
  margin-top: -240px; 
  margin-left: 270px; 
  margin-bottom: -710px;
  z-index: 1;

  @media screen and(max-width: 414px){
    z-index: 3;
    margin-top: -890px;
    margin-left: -150px;
    margin-bottom: -1030px;
    transform: rotate(-7deg) scale(0.35);
  }
}

.background {
  //background: url(../../assets/images/cfp/Background.svg) no-repeat;
  //content: url("../../assets/images/cfp/Background.svg") no-repeat;
  position: absolute;
  top: 0;
  width:200%;
  //max-height: 2000px;
  margin-left: -69%;
  margin-top: -30%;
  text-align: center;
  z-index: -2;

  @media screen and(max-width: 414px){
    //content: url() no-repeat;//../../assets/images/cfp/Mobile/Mobile-background.svg
    //visibility: hidden;
    background: url(./assets/images/cfp/Mobile/Mobile-background.svg) !important;
    object-position: -99999px 99999px;
    overflow: hidden;
    margin-left: -20%;
    margin-top: -20%;
    z-index: -1;
    transform: scale(1);
  }
}

.ellipse {
  position: absolute;
  width: 100%;
  margin-top: -75%;
  margin-left: -14%;
  align-content: center;
  transform: scale(0.31);

  @media screen and(max-width: 414px){
    margin-top: -20%;
    transform: scale(0.60);
  }
}

.sitcon-icon {
  position: absolute;
  width: 100%;
  margin-top: -98%;
  margin-left: -14%;
  align-content: center;
  transform: scale(0.14);

  @media screen and(max-width: 414px){
    margin-top: -42%;
    transform: scale(0.3);
  }
}

.sitcon-pic-2021 {
  position: absolute;
  width: 100%;
  margin-top: -49%;
  margin-left: -14%;
  align-content: center;
  transform: scale(0.18);

  @media screen and(max-width: 414px){
    margin-top: -40%;
    transform: scale(0.5);
  }
}

.sitcon-title-zh {
  position: absolute;
  width: 100%;
  margin-top: -46%;
  margin-left: -14%;
  align-content: center;
  transform: scale(0.11);

  @media screen and(max-width: 414px){
    margin-top: -30%;
    transform: scale(0.4);
  }
}

.sitcon-topic {
  position: absolute;
  width: 100%;
  margin-top: -45%;
  margin-left: -14%;
  align-content: center;
  transform: scale(0.23);

  @media screen and(max-width: 414px){
    margin-top: -20%;
    transform: scale(0.65);
  }
}

.sitcon-date {
  position: absolute;
  width: 100%;
  margin-top: -31%;
  margin-left: -44%;
  transform: scale(0.13);

  @media screen and(max-width: 414px){
    margin-top: 65%;
    transform: scale(0.35);
  }
}

.sitcon-place {
  position: absolute;
  width: 100%;
  margin-top: -36.5%;
  margin-left: -44%;
  transform: scale(0.13);

  @media screen and(max-width: 414px){
    margin-top: 73%;
    margin-left: -40%;
    transform: scale(0.45);
  }
}

.sitcon-qeury {
  position: absolute;
  width: 100%;
  margin-top: -18.5%;
  margin-left: -13%;
  transform: scale(0.2);

  @media screen and(max-width: 414px){
    margin-top: 50%;
    transform: scale(0.6);
  }
}