@charset "utf-8";

/* reset */
*{box-sizing: border-box;}
html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed,
figure, figcaption, footer, header, hgroup,
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
article, aside, details, figcaption, figure,
footer, header, hgroup, menu, nav, section {display: block;}
html{-webkit-text-size-adjust: 100%;}
body {line-height: 1;overflow-x: hidden;}
ol, ul {list-style: none;}
blockquote, q {quotes: none;}
blockquote:before, blockquote:after,
q:before, q:after {content: '';content: none;}
table {border-collapse: collapse;border-spacing: 0;}
a{text-decoration:none;cursor:pointer;}
img{max-width: 100%;vertical-align: bottom;}
main{display:block;}
select::-ms-expand{display:none;}
textarea{width:100%;max-width: 100%;-webkit-appearance:none;border:none;border-radius:0;box-shadow: none;}
textarea:focus {outline: 0;}
input{border:none;background:none;-webkit-appearance:none;border-radius:0;box-shadow: none;}
input:-webkit-autofill {-webkit-box-shadow: 0 0 0px 1000px #fff inset;}
input:focus {outline: 0;}
select{-webkit-appearance: none;border-radius:0;border:none;background:none;}
select:focus {outline: 0;}
button{border:none;background:none;cursor:pointer;}
button:focus {outline: 0;}

/* variable */
:root {
  --main-color: #076b51;
  --sub-color: #1e9676;
  --main-bg-color: #e4f0ec;
  --text-color: #666;
}

/* base */
html{
  scroll-behavior: smooth;
}

body {
  color: var(--text-color);
  line-height: 1.7;
}

h2,
h3,
h4,
h5,
h6 {
  font-weight: bold;
  line-height: 1.5;
}

p + p{
  margin-top: 8px;
}

a {
  color: var(--sub-color);
  transition: opacity 0.3s;
}

a:hover{
  opacity: 0.7;
}

ul > li::before {
  content: "・";
}

/* component */
.container {
  max-width: 912px;
  width: 96%;
  margin-inline: auto;
}

.block {
  margin-bottom: 64px;
}

.block:last-child{
  margin-bottom: 160px;
}

.heading-primary {
  color: var(--sub-color);
  font-size: 21px;
  padding: 12.5px 16px;
  border: solid 1px var(--sub-color);
  margin-bottom: 56px;
  text-align: center;
}

.heading-secondary {
  color: var(--main-color);
  font-size: 21px;
  padding-bottom: 10px;
  border-bottom: solid 1px;
  border-image: linear-gradient(
      to right,
      var(--main-color) 0%,
      var(--main-color) 50%,
      #e5e5e5 50%,
      #e5e5e5 100%
    )
    1;
  margin-bottom: 56px;
}

.heading-tertiary {
  color: var(--text-color);
  font-size: 20px;
  margin-bottom: 24px;
}

.list > li {
  text-indent: -1em;
  padding-left: 1em;
}

/* project */
header {
  background-color: var(--main-bg-color);
  width: 100%;
  height: 220px;
  margin-bottom: 80px;
  display: flex;
  align-items: center;
  font-weight: bold;
}

header h1 {
  color: var(--main-color);
  font-size: 35px;
  line-height: 1.2;
}

header p {
  color: #000;
  font-size: 21px;
}

.hero {
  margin-bottom: 110px;
}

.hero > h2 {
  color: var(--main-color);
  font-size: 28px;
}

.hero > h2 > span {
  display: block;
  color: #000;
  font-size: 20px;
}

.relative{
  position: relative;
}

.absolute__right-bottom{
  position: absolute;
  right: 0;
  bottom: 0;
}

.fraction {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  vertical-align: middle;
  margin: 8px 0 8px 16px;
}

.fraction p + p {
  padding-top: 16px;
  border-top: solid 1px #d9d9d9;
  margin-top: 16px;
}

.fraction > .denominator {
  border-top: solid 1px #d9d9d9;
  display: block;
  width: 100%;
  text-align: center;
}

.reactor{
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  border: solid 1px var(--sub-color);
  text-align: center;
}

.phylum{
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  border: solid 1px var(--text-color);
  text-align: center;
}

.phylum img{
  transform: rotate(270deg);
}

/* utility */
.text-xs {
  font-size: 12px;
}

.text-s {
  font-size: 16px;
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.font-bold {
  font-weight: bold;
}

.text-black {
  color: #000;
}

.text-green {
  color: var(--sub-color);
}

.text-underline {
  text-decoration: underline;
}

.flex {
  display: flex;
}

@media (max-width:768px) {
  .flex-sp {
    flex-direction: column;
  }
}

.flex-shrink0{
  flex-shrink: 0;
}

.justify-between {
  justify-content: space-between;
}

.justify-end {
  justify-content: flex-end;
}

.items-end {
  align-items: flex-end;
}

.gap-4 {
  gap: 16px;
}

.gap-6 {
  gap: 24px;
}

.gap-8 {
  gap: 32px;
}

.mb-2 {
  margin-bottom: 8px;
}

.mb-4 {
  margin-bottom: 16px;
}

.mb-6 {
  margin-bottom: 24px;
}

.mb-8 {
  margin-bottom: 32px;
}

.mb-10 {
  margin-bottom: 40px;
}

.mb-12 {
  margin-bottom: 48px;
}

.ml-2 {
  margin-left: 8px;
}

.ml-6 {
  margin-left: 24px;
}