/*=========== Google Fonts ==============*/
/* @import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600&display=swap"); */
@import url("css2.css");

/*=========== Variables CSS ==============*/
:root{

  --header-height: 3rem;

  /*===== Colors =====*/
  /* --black-color: hsl(220, 24%, 12%); */
  /* --black-color-light: hsl(220, 24%, 15%); */
  /* --black-color-lighten: hsl(220, 20%, 18%); */
  --black-color: hsl(220, 24%, 80%);
  --black-color-light: hsl(220, 24%, 85%);
  --black-color-lighten: hsl(220, 20%, 88%);
  --white-color: #fff;


  /*========== Colors 主题色彩==========*/
  /* Change favorite color */
  --hue-color: 250; /*Purple 250 - Green 142 - Blue 230 - Pink 340*/

  /* HSL color mode */
  --first-color: hsl(var(--hue-color), 69%, 61%);
  --first-color-second: hsl(var(--hue-color), 69%, 61%);
  --first-color-alt: hsl(var(--hue-color), 57%, 53%);
  --first-color-lighter: hsl(var(--hue-color), 92%, 85%);
  --title-color: hsl(var(--hue-color), 8%, 15%);
  --text-color: hsl(var(--hue-color), 8%, 45%);
  --text-color-light: hsl(var(--hue-color), 8%, 65%);
  --input-color: hsl(var(--hue-color), 70%, 96%);
  --body-color: hsl(var(--hue-color), 60%, 99%);
  --container-color: hsl(var(--hue-color), 100%, 98%);
  --scroll-bar-color: hsl(var(--hue-color), 12%, 90%);
  --scroll-thumb-color: hsl(var(--hue-color), 12%, 80%);

  /*========== Font and typography ==========*/
  /* .5rem =8px  1rem = 16px ... */
  /* --body-font: "Montserrat", sans-serif; */
  /* --body-font: "SF Pro SC", "SF Pro Text", "SF Pro Icons", "PingFang SC", "Helvetica Neue", Helvetica, Arial, sans-serif; */
  --body-font: 'Poppins', "SF Pro Display", "PingFang SC", "Neue Haas Grotesk Text Pro", "Arial Nova",  "Source Han Sans SC", "Segoe UI", "Microsoft YaHei", "Microsoft JhengHei", "Helvetica Neue", "Noto Sans CJK SC", "Source Han Sans CN", "Noto Sans SC", "Source Han Sans TC", "Noto Sans CJK TC", "Helvetica", "Hiragino Sans GB", sans-serif;
  --normal-font-size: .938rem;

  /* .5rem = 8px, 1rem = 16px, 1.5rem = 24px ... */
  --big-font-size: 2rem;
  --h1-font-size: 1.5rem;
  --h2-font-size: 1.25rem;
  --h3-font-size: 1.125rem;
  --normal-font-size: .938rem;
  --small-font-size: .813rem;
  --smaller-font-size: .75rem;

  /*========== Font weight ==========*/
  --font-medium: 400;
  --font-semi-bold: 500;

  /*========== Margenes Bottom ==========*/
  /* .25rem = 4px, .5rem = 8px, .75rem = 12px ... */
  --mb-0-25: .25rem;
  --mb-0-5: .5rem;
  --mb-0-75: .75rem;
  --mb-1: 1rem;
  --mb-1-5: 1.5rem;
  --mb-2: 2rem;
  --mb-2-5: 2.5rem;
  --mb-3: 3rem;

  /*========== z index ==========*/
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

/*=========== dark theme CSS ==============*/
.dark-theme {
  --black-color: hsl(220, 24%, 12%);
  --black-color-light: hsl(220, 24%, 15%);
  --black-color-lighten: hsl(220, 20%, 18%);
  --first-color-second: hsl(var(--hue-color), 30%, 8%);
  --title-color: hsl(var(--hue-color), 8%, 95%);
  --text-color: hsl(var(--hue-color), 8%, 95%);
  --text-color-light: hsl(var(--hue-color), 8%, 75%);
  --input-color: hsl(var(--hue-color), 29%, 16%);
  --body-color: hsl(var(--hue-color), 28%, 12%);
  --container-color: hsl(var(--hue-color), 29%, 16%);
  --scroll-bar-color: hsl(var(--hue-color), 12%, 48%);
  --scroll-thumb-color: hsl(var(--hue-color), 12%, 36%);
}

/*========== Base ==========*/
*{
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

body{
  font-family: var(--body-font);
  font-size: var(--normal-font-size);
  background-color: var(--body-color);
  color: var(--text-color);
}


ul{ list-style: none; }
a { text-decoration: none;}

/*========== Reusable CSS Classes ==========*/
.container {
  max-width: 1120px;
  margin-inline: 1.5rem;
}

/*========== Header =========*/
.header{
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;    
  background-color: var(--body-color);
  box-shadow: 0 2px 16px hsla(220, 32%, 8% .3);
  z-index: var(--z-fixed);
}

/*========== Nav =========*/
.nav{
  height: var(--header-height);
  display: flex;
  justify-content: space-between;
  margin-inline: 1.5rem;
}

.nav__btns{
  display: grid;
  grid-auto-flow: column;
  align-items: center;
}
.nav__logo, .nav__burger, .nav__close,
.change__theme{
  color: var(--title-color);
}
.change__theme{
  padding-right: .4rem;
}
.change__theme:hover{
  color: var(--first-color);
}
.ri-sun-line{
  color: #f2784b;
}


.nav__data{
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  column-gap: .25rem;
  font-weight: var(--font-semi-bold);
}

.nav__logo i{
  font-weight: initial;
  font-size: 1.25rem;
}

.nav__logo img{
  width: 28px;
  height:28px;
  transform: rotate(90deg);
}
.nav__toggle{
  position: relative;
  width: 32px;
  height: 32px;
}

.nav__burger, .nav__close{
  position: absolute;
  width: max-content;
  height: max-content;
  inset: 0;
  margin: auto;
  font-size: 1.25rem;
  cursor: pointer;
  transition: opacity .1s, transfrom .4s;
}

.nav__close{
  opacity: 0;
}

.nav__link{
  color: var(--title-color);
  /* background-color: var(--black-color); */
  font-weight: var(--font-semi-bold);
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background .3s;
  /* background: linear-gradient(-90deg, #007cf0, #00dfd8, #ff0080, #007cf0); */
}
.dropdown__item:before{
  background: -webkit-linear-gradient(left, #12c2e9, #c471ed, #f64f59) no-repeat right bottom;
  position: absolute;
  top: 2px;
  content: '';
  width: 100%;
  height: 3px;
  transform: translateX(-100%);
  opacity: 0;
}
.dropdown__item:hover{
  /* background: -webkit-linear-gradient(left, #12c2e9, #c471ed, #f64f59) no-repeat right bottom; */
  background-size: 100% 2px;
  transition: 0.5s transform ease, 0.8s opacity ease;
  transform: translateX(0);
}

.dropdown__item:hover:before {
  opacity: 1;
  transition: 0.2s transform ease, 0.5s opacity ease;
  transform: translateX(0);
}


/* Show Menu */
.nav .show-menu{
  opacity: 1 ;
  top: 3rem;
  pointer-events: initial ;
}

.dropdown__subitem .show-menu{
  top: 0rem;
}
/* Show Menu */
.show-icon .nav__burger{
  opacity: 0;
  transform: rotate(90deg)
}
.show-icon .nav__close{
  opacity: 1;
  transform: rotate(90deg)
}

/*====== Dropdown =====*/
.dropdown__item{
  cursor: pointer;
}
.dropdown__arrow{
  font-size: 1.25rem;
  font-weight: initial;
  transition: transform .4s;
}
.dropdown__link, .dropdown__sublink {
  padding: 1.25rem 1.25rem 1.25rem 2.5rem;
  color: var(--text-color);
  /* background-color: var(--black-color-light); */
  display:flex;
  align-items: center;
  column-gap: .5rem;
  font-weight: var(--font-semi-bold);
  transition: background-color .3s;
}
.dropdown__link i, .dropdown__sublink i{
  font-size: 1.25rem;
  font-weight: initial;
}
.dropdown__link:hover, .dropdown__sublink:hover{
  background-color: var(--black-color);
}
.dropdown__menu, .dropdown__submenu{
  /* max-height: 0; */
  display: none;
  overflow: hidden;
  transition: max-height .4s ease-out;
}

/* Show dropdown menu & submenu */
.dropdown__item:hover .dropdown__menu,
.dropdown__subitem:hover > .dropdown__submenu{
  /* display: block; */
  /* background-color: transparent; */
  transition: display .4s ease-in;
}
.dropdown__menu.show-menu,
.dropdown__submenu.show-menu{
  display: block;
  /* background-color: transparent; */
  transition: display .4s ease-in;
}
.dropdown__menu::before{
  /* 解决父级使用backdrop-filter后，子级再使用不生效 */ 
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  z-index: -1;
  -webkit-backdrop-filter: blur(25px);
  backdrop-filter: blur(25px);
}
.dropdown__submenu{
  /* background-color: rgba(#E4E3E9, 0.8); */
  /* background-color: rgba(255, 255, 255, 0.5); */
  -webkit-backdrop-filter: blur(25px);
  backdrop-filter: blur(25px);
}

/* Rotate dropdown icon */
.dropdown__item:hover .dropdown__arrow{
  transform: rotate(180deg);
}

/*======= Dropdown Submenu =======*/
.dropdown__add{
  margin-left: auto;
}

.dropdown__sublink{
  background-color: var(--black-color-lighten);
}

section{
  padding: 4rem 0;
}

.main{
  display: grid;
  grid-template-columns: repeat(2,1fr);
}

.main #svgtag{
  margin-inline: auto;
}

.main__title{
  margin: 1rem 0.5rem;
}
.main__subtitle{
  margin: 0.5rem 0.5rem;
}

.view__switch{
  display: grid;
  /* grid-template-columns: 2fr 2fr; */
  grid-auto-flow: column;
}

.view__switch li{
  display: flex;
  padding: 0.6rem 1rem;
}


.view__switch span{
  /* color: var(--title-color); */
  display: block;
  font-size: 1.2rem;
  text-align: center;
  width: 2.6rem;
}

.view__progress{
  display: grid;
  grid-template-columns: 1fr;
}

.view__progress li{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 2rem;
  padding: 0.6rem 1rem;
}

[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    margin: 0;
    outline: 0;
    background-color: transparent;
    width: 92%dvw;
}
[type="range"]::-webkit-slider-runnable-track {
    height: 4px;
    background:  linear-gradient(to left, #d16ba5, #c777b9, #ba83ca, #aa8fd8, #9a9ae1, #8aa7ec, #79b3f4, #69bff8, #52cffe, #41dfff, #46eefa, #5ffbf1);;
}
[type="range" i]::-webkit-slider-container {
    height: 20px;
    overflow: hidden;
}
[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #0075ff;
    border: 1px solid transparent;
    margin-top: -8px;
    border-image: linear-gradient(#0075ff,#0075ff) 0 fill / 8 20 8 0 / 0px 0px 0 2000px;
}

/* // input checkbox样式 */
/* // https://codepen.io/thesephist/pen/oLRvyV */
.view__switch input{
  width: 1.2rem;
  height: 1.2rem;
  margin: auto 0.8rem;
}

/* ========== Navigation for Mobile devices =====*/
@media screen and (max-width: 1118px){
  body{
    width: 100dvw;
    /* overflow: hidden; */
  }
  .nav__menu{
    position: absolute;
    left: 0;
    top: 3.5rem;
    width: 100%;
    /* height: calc(100vh - 3.5rem); */
    overflow: auto;
    pointer-events: none;
    opacity: 0;
    transition: top .4s, opacity .3s;
    /* background-color: rgba(76, 76, 76, 0.36); */
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter : blur(25px);
    font-size: 1.2rem;
  }
  .nav__menu::-webkit-scrollbar{
    width:0;
  }
  .nav__list{
    padding-top: .1rem;
  }
  .nav__list span, a, .dropdown__link{
    font-size: 1rem;
  }
  .nav__link, .dropdown__link{
    padding: 0.5rem 3rem;
  }
  .dropdown__menu .dropdown__link{
    padding-left: 5rem;
  }
  .dropdown__submenu .dropdown__link{
    padding-left: 7rem;
  }
  section{
    padding-top: 2.5rem;
  }
  .container{
    margin-inline: 1rem;
  }
  .main #svgtag{
    /* margin:auto; */
    width: 90vw;
    height: 110vw;
  }
  .comment__contain{
    display: none;
  }
  .main{
    width: 100%;
    grid-template-columns: 1fr;  
  }
  .about__data{
    width:99%;
  }
  .main__title{
    display: none;
  }
  .main__subtitle{
    margin: 0.5rem;
  }
  #view-attr{
    width: 96%;
    margin: auto;
  }
  .view__switch{
    margin-inline: 0.5rem;
  }
  .view__switch li {
    padding: 0;
  }
  .view__progress li {
    grid-template-columns: 1fr;
    /* grid-auto-flow: row; */
    gap: .2rem;
    padding: 0.2rem 0.8rem;
  }
  .nav__btns i{
    font-size: 1.2rem;
  }
  .view__switch span {
    /* color: var(--title-color); */
    font-size: 1rem;
  }
}


/*========== Breakpoints ==========*/
/* For small devices */
@media screen and (max-width: 340px){
  .container{
    margin-inline: 0rem;
  }
  .nav__link{
    padding-inline: 1rem;
  }
}

/* For large devices */
@media screen and (min-width: 1118px){
  .container{
    margin-inline: auto;
  }
  .nav{
    height: calc(var(--header-height) + 0.6rem);
    /* margin-inline: 1.5rem; */
    padding: 0 1.5rem;
  }
  .nav__toggle{
    display: none;
  }
  .nav__list{
    height: 100%;
    display:flex;
    /* align-items: center; */
    column-gap: 3rem;
  }
  .nav__link{
    height: 100%;
    padding: 0;
    justify-content: initial;
    column-gap: .25rem;
  }
  .nav__link:hover{
    background-color: transparent;
  }
  .dropdown__item, .dropdown__subitem{
    position:relative;
  }
  .dropdown__menu, .dropdown__submenu{
    max-height: initial;
    overflow: initial;
    position: absolute;
    left: 0;
    top: 6rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s, top .3s;
  }
  .dropdown__link, .dropdown__sublink{
    padding-inline: 1rem ;
    width: 9rem;
    /* padding-inline: 1rem 3.5rem; */
  }
  .dropdown__subitem .dropdown__link{
    padding-inline: 1rem;
  }
  .dropdown__submenu{
    /* position: absolute; */
    left: 100%;
    top: .2rem;
  }
  /* Show dropdown menu */
  /* .dropdown__item:hover  .dropdown__menu{ */
  /*   opacity: 1; */
  /*   top: 3rem; */
  /*   pointer-events: initial; */
  /*   transition: top .3s; */
  /* } */
  /* .dropdown__subitem:hover  .dropdown__submenu{ */
  /*   opacity: 1; */
  /*   top: 0; */
  /*   pointer-events: initial; */
  /*   transition: top .3s; */
  /* } */
  .hide-menu{
    opacity: 0 !important;
  }
  #comment{
    padding: .4rem 1.6rem;
    list-style: none; 
    counter-reset: li
  }
  #comment li{
    margin: 0.4rem 0.2rem;
    counter-increment: li;
  }

  #comment li::before {
    color: #0075ff;
    content: " ." counter(li);
    display: inline-block; width: 3em; margin-left: -1.5em;
    margin-right: 0.5em; text-align: right; direction: rtl;

  }
}


/* BSW mobile Pattern Notes safe fix */
@media screen and (max-width: 1118px){
  .bsw-string-tool-wrap .comment__contain{
    display: block !important;
    width: 100%;
    margin-top: .75rem;
    padding-top: .25rem;
  }

  .bsw-string-tool-wrap #comment{
    display: block;
    padding: .35rem 1rem .2rem 1.15rem;
    list-style: disc;
  }

  .bsw-string-tool-wrap #comment li{
    display: list-item;
    margin: .32rem 0;
    line-height: 1.55;
  }

  .bsw-string-tool-wrap #comment li::before{
    display: none;
    content: none;
  }
}