@charset "UTF-8";

/* reset
========================================*/

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body,
h1,
h2,
h3,
h4,
p,
ul,
li,
dl,
dt,
dd {
  margin: 0;
  padding: 0;
  line-height: 1;
}

a {
  text-decoration: none;
  color: inherit;
  transition: .2s;
}

a:hover {
  opacity: .7;
}

img {
  border: none;
  vertical-align: bottom;
  max-width: 100%;
}

ul {
  list-style: none;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

input,
button,
select,
textarea {
  appearance: none;
  background: transparent;
  border: none;
  border-radius: 0;
  font: inherit;
  outline: none;
}

textarea {
  resize: vertical;
}


/* style
========================================*/

html {
  font-size: 62.5%;
}

body {
  font-family: YakuHanJPs, "Zen Kaku Gothic New", "Hiragino Sans", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  display: flex;
  flex-flow: column;
  min-height: 100vh;
  background: url(../img/bg.png);
  background-size: 100%;
  background-repeat: repeat-y;
  -webkit-text-size-adjust: 100%;
}


/* --- header --- */

header {
  width: 100%;
  background-color: #fff;
}

.header_inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 80%;
  margin: 0 auto;
}

.header_inner .header_shiburaba img {
  width: auto;
  height: 48px;
}

.header_inner .link_shibuyabunka {
  padding: 20px 20px;
  background-color: #000;
}

.header_inner .link_shibuyabunka img {
  width: auto;
  height: 24px;
}


/* --- footer --- */

footer {
  width: 100%;
}

.footer_inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  padding: 20px 24px 20px 10%;
  background-color: #fff;
}

.footer_inner .footer_copyright {
  font-size: 1.3rem;
  color: #222;
  font-family: 'Geo';
  order: 0;
}

.footer_inner ul.footer_link {
  display: flex;
  flex-shrink: 0;
  order: 1;
}

.footer_inner li {
  margin: 0 12px;
}

.footer_inner li:last-child {
  border-left: 1px solid #ddd;
  padding-left: 24px;
}

.footer_inner li img {
  height: 32px;
}


/* --- main --- */

main {
  flex: 1;
  width: 80%;
  max-width: 1120px;
  margin: 2% auto;
}


.box {
  position: relative;
  margin: 0 0 0;
  padding: 4% 10%;
}


/* --- br --- */

@media screen and (min-width: 769px) {

  .br_pc {
    display: block;
  }

  .br_sp {
    display: none;
  }

}

@media screen and (max-width: 768px) {

  .br_pc {
    display: none;
  }

  .br_sp {
    display: block;
  }

}


/* --- article_info --- */

.article_info {
  margin-bottom: 32px;
}

.article_info p.date {
  position: absolute;
  font-size: 2.4rem;
  line-height: 1;
  letter-spacing: -0.04em;
  font-family: "Geo", sans-serif;
  margin-right: .4em;
}

.article_info ul.tags {
  display: flex;
}

.article_info ul.tags li {
  display: inherit;
  margin-right: .3em;
}

.article_info ul.tags li:first-child {
  margin-left: 11em;
}

.article_info ul.tags li a {
  font-size: 1.3rem;
  letter-spacing: -.04em;
  padding: 0.6em 0.6em;
  background-color: #fff;
  border: 1px solid #ececec;
}

.article_info ul.tags li a::before {
  content: "#";
  margin-right: .2em;
}

.article_info ul.tags li a:hover {
  color: #fff;
  background-color: #ff7e00;
  opacity: 1;
}


/* --- lead --- */

.lead {
  margin-bottom: 3%;
  padding-top: 0;
  background-color: rgba(255, 255, 255, 0.6);
}

.lead p {
  font-size: 2.0rem;
  line-height: 2.0;
}

.lead .stickout {
  width: calc(100% + 38%);
  margin: 0 -19% 32px;
}

.lead .stickout img {
  width: 100%;
  height: auto;
}

.lead .stickout .caption {
  font-size: 1.4rem;
  color: #333;
  line-height: 1.6;
  margin-top: .4em;
  padding: 0 6%;
}


/* --- information --- */

.information {
  margin-bottom: 3%;
  padding-bottom: 2%;
  background-color: rgba(255, 255, 255, 0.6);
}

.information .h_title {
  position: absolute;
  width: 80px;
  height: 268px;
  left: -60px;
}

.information .info_txt {
  margin: 0 0 4%;
}

.information h3 {
  font-size: 2.4rem;
  line-height: 1.5;
  margin-bottom: .8em;
}

.information h3:first-letter {
  color: #ff6100;
}

.information p {
  font-size: 1.6rem;
  line-height: 1.8;
}

.information p.small {
  font-size: 1.4rem;
  margin-top: 1em;
}

.information strong {
  display: block;
}

/* --- information : speakers --- */

.information .speakers .title {
  position: relative;
  font-size: 2.0rem;
  color: #999;
  margin: .8em 0;
  overflow: hidden;
}

.information .speakers .title::before {
  content: '';
  background-image: linear-gradient(to right, #999, #999 3px, transparent 3px, transparent 8px);
  background-size: 8px 1px;
  background-repeat: repeat-x;
  position: absolute;
  top: 1em;
  bottom: 0;
  left: 2.4em;
  right: 0;
}

.information .speakers .position {
  position: relative;
  font-size: 1.4rem;
  color: #fff;
  line-height: 1.4;
  margin: 0;
  padding: .2em 1.8em .3em .6em;
  background-color: #ffa200;
}

.information .speakers .position::after {
  position: absolute;
  top: 0;
  right: 0;
  content: '';
  display: block;
  width: 8%;
  height: 100%;
  background-color: #ffd800;
}

.information .speakers .photo {
  width: 136px;
  height:136px;
  object-fit: cover;
  border-radius: 50%;
  /* object-position: 0px 0px; */
  margin: 0 0 2% 8%;
}

.information .speakers .name {
  font-size: 2.2rem;
  font-weight: bold;
  margin: 0 0 .2em;
  overflow: hidden;
}

.information .speakers .txt {
  font-size: 1.4rem;
  margin: 0 0 .6em;
  background: none;
  overflow: hidden;
}

.information .speakers a.ex-link {
  position: relative;
  display: flex;
  align-items: center;
  font-size: 1.6rem;
  color: #ff7e00;
  background: none;
}

.information .speakers ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.information .speakers li {
  width: 46%;
  margin-bottom: 6%;
}

.information .speakers li:last-child {
  margin-bottom: 0;
}

/* speakers : mc */

.information .mc {
  margin-bottom: 4%;
}

.information .mc li {
  margin-bottom: 0;
}

.information .mc .position {
  position: relative;
  font-size: 1.4rem;
  color: #fff;
  line-height: 1.4;
  margin: 0;
  padding: .2em 1.8em .3em .6em;
  background-color: #00a8ff;
}

.information .mc .position::after {
  position: absolute;
  top: 0;
  right: 0;
  content: '';
  display: block;
  width: 8%;
  height: 100%;
  background-color: #00eaff;
}


/* --- information : column --- */

.information .column {
  margin-top: 4%;
  padding: 2.4em 2.4em;
  border: 1px dashed #ff7e00;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: flex-start;
}

.information .column h3 {
  margin: .4em 0 0.4em;
}

.information .column .txt {
  background: none;
}

.information .column .txt p {
  font-size: 1.5rem;
  line-height: 1.7;
  margin-bottom: .6em;
}

.information .column .column_img {
  margin-bottom: 1.4em;
}

.information .column .column_img img {
  height: auto;
}

.information .column .column_img .caption {
  font-size: 1.4rem;
  color: #333;
  line-height: 1.6;
  margin-top: 0.4em;
}


/* --- profile --- */

.profile .h_title {
  position: absolute;
  width: 80px;
  height: 184px;
  left: -60px;
  top: -20px;
}

.profile h3:first-letter {
  color: #87b81e;
}


/* --- txt --- */

h1:first-letter,
h2:first-letter,
h3:first-letter {
  color: #ff6100;
}

h1 {
  font-size: 3.8rem;
  line-height: 1.4;
  margin: 0 0 0.4em;
}

.txt {
  background-color: rgba(255, 255, 255, 0.7);
}

.txt h2 {
  position: relative;
  font-size: 3.2rem;
  line-height: 1.4;
  margin: 0 0 0.8em;
}

.txt h2::before {
  position: absolute;
  content: "";
  width: 48px;
  height: 1px;
  background-color: #ff6100;
  top: 0.72em;
  left: -2em;
}

.txt h2:not(:first-child) {
  margin-top: 2em;
}

.txt h3 {
  position: relative;
  font-size: 2.6rem;
  line-height: 1.4;
  margin: 1.8em 0 0.8em;
}

.txt h4 {
  position: relative;
  font-size: 2.6rem;
  line-height: 1.4;
  margin: 1.8em 0 0.8em;
}

.txt p {
  font-size: 1.6rem;
  line-height: 2;
  font-weight: 400;
  margin-bottom: 1.6em;
}

.txt p:last-child {
  margin-bottom: 0;
}

.txt p span {
  color: #ff7e00;
  font-weight: bold;
  margin-right: 1em;
}

.txt p span.mc {
  color: #00a8ff;
  font-weight: bold;
  margin-right: 1em;
}


/* --- txt : column --- */


.txt .column {
  margin: 6% 0 6%;
  padding: 2.4em 2.4em;
  border: 1px dashed #ff7e00;
}

.txt .column h3 {
  margin-top: 0;
}


/* --- txt : list --- */

.txt .txt_list {
  margin: 0 0 0;
  padding: 2.4em 0 0;
  list-style: none;
}

.txt_list li {
  position: relative;
  font-size: 1.4rem;
  line-height: 1.8;
  margin-bottom: 2.4em;
  padding: 0 0 0 1.6em;
}

.txt_list li:last-child {
  margin-bottom: 0;
}

.txt_list li::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: solid 2px #00ce61;
  position: absolute;
  top: .8em;
  left: .2em;
}

.txt_list li::after {
  content: '';
  background-image: linear-gradient(to right, #ccc, #ccc 3px, transparent 3px, transparent 8px);
  background-size: 8px 1px;
  background-repeat: repeat-x;
  position: absolute;
  top: -1.2em;
  bottom: 0;
  left: 2em;
  right: 0;
}


/* --- txt : stickout：左右にはみ出る要素 --- */

.txt .stickout {
  width: calc(100% + 25%);
  margin: 6% -12.5% 4%;
}

.txt .stickout img {
  width: 100%;
  height: auto;
}

.txt .stickout .caption {
  font-size: 1.4rem;
  color: #333;
  line-height: 1.6;
  margin-top: .4em;
  padding: 0 1.8%;
}


/* --- txt : youtube --- */

.youtube {
  width: 100%;
  aspect-ratio: 16 / 9;
}

.youtube iframe {
  width: 100%;
  height: 100%;
}


/* --- txt : openmic --- */

.openmic {
  margin-top: 56px;
  background-color: rgba(255, 255, 255, 0.7);
}

.openmic .h_title {
  position: absolute;
  width: auto;
  height: 72px;
  top: -40px;
  left: -60px;
}

.openmic h3 {
  font-size: 2.6rem;
  line-height: 1.6;
  margin-bottom: .4em;
}

.openmic h3:first-letter {
  color: #ff6ed9;
}

.openmic p {
  font-size: 1.6rem;
  line-height: 2.0;
  margin-bottom: .6em;
}


/* --- txt : pickup --- */

.pickup {
  margin-top: 56px;
  background-color: rgba(255, 255, 255, 0.7);
}

.pickup .h_title {
  position: absolute;
  width: auto;
  height: 72px;
  top: -40px;
  left: -60px;
}

.pickup h3 {
  font-size: 2.6rem;
  line-height: 1.6;
  margin-bottom: .4em;
}

.pickup h3:first-letter {
  color: #d26be5;
}

.pickup p {
  font-size: 1.6rem;
  line-height: 2.0;
  margin-bottom: .6em;
}


/* --- ex-link --- */

.ex-link {
  padding-bottom: 0;
}

.ex-link p {
  position: relative;
  font-size: 2.0rem;
  color: #999;
  margin: 0 0 1.6em;
  overflow: hidden;
}

.ex-link p::before {
  content: '';
  background-image: linear-gradient(to right, #999, #999 3px, transparent 3px, transparent 8px);
  background-size: 8px 1px;
  background-repeat: repeat-x;
  position: absolute;
  top: .5em;
  bottom: 0;
  left: 5.2em;
  right: 0;
}

/* --- ex-link --- */

a.ex-link {
  position: relative;
  display: flex;
  align-items: center;
  font-size: 1.6rem;
  color: #ff7e00;
  background: none;
}

a.ex-link::after {
  content: '';
  background: url(../img/ico_link-blank.svg);
  width: 22px;
  height: 22px;
  margin-left: .2em;
}


/* --- btn_ex-link --- */

.btn_ex-link {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.btn_ex-link li {
  width: 45%;
  margin-bottom: 2%;
}

.btn_ex-link li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 2.0rem;
  line-height: 1.2;
  font-weight: bold;
  padding: 1em .8em 1em .8em;
  background-color: #fff;
  border: 1px solid #aaa;
}

.btn_ex-link li a::after {
  content: '';
  background: url(../img/ico_link-blank.svg);
  background-size: cover;
  width: 26px;
  height: 26px;
  margin-left: .2em;
}

.btn_ex-link li a:hover {
  color: #fff;
  background-color: #333;
  opacity: 1;
}


/* --- btn_home --- */

.btn_home {
  display: block;
  position: relative;
  width: 60%;
  margin: .8em auto;
  padding: 1em .8em 1em .8em;
  font-size: 2.0rem;
  font-weight: bold;
  text-align: center;
  background-color: #fff;
  border: 1px solid #aaa;
}

.btn_home::before {
  position: absolute;
  top: .7em;
  left: .8em;
  content: '';
  background: url(../img/ico_arrow_left.svg);
  background-size: cover;
  width: 32px;
  height: 32px;
}

.btn_home:hover {
  color: #fff;
  background-color: #333;
  opacity: 1;
}


/* --- btn_sns --- */

.btn_sns {
  width: 80%;
  margin: 0 auto 10px;
}

.btn_sns ul {
  display: flex;justify-content: right;
  align-items: center;
}

.btn_sns li {
  margin-left: 16px;
}

.btn_sns li a {
  display: block;
  padding: 1em 1em;
  background-color: #fff;
  border-radius: 100px;
}


/* --- page-top --- */

.page-top {
  position: fixed;
  right: 0;
  bottom: 20px;
  width: 64px;
  height: 60px;
  background-color: #222;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: 0.3s;
}


@media screen and (max-width: 1080px) {

  .lead .stickout {
    width: calc(100% + 44%);
    margin: 0 -22% 32px;
  }

  .lead .stickout .caption {
    padding: 0 8%;
  }

  .footer_inner {
    display: block;
    text-align: center;
    padding: 20px 8px 20px 8px;
  }

  .footer_inner ul.footer_link {
    display: flex;
    justify-content: center;
    flex-shrink: 0;
    margin-bottom: 2em;
    order: 1;
  }

}


@media screen and (max-width: 768px) {

  body {
    background-size: 120%;
  }

  .header_inner {
    width: 100%;
    padding-left: 16px;
  }

  main {
    width: 100%;
    margin: 0;
  }

  .box {
    margin: 0 0 20px;
    padding: 8% 6%;
  }


  /* --- article_info --- */

  .article_info {
    align-items: baseline;
    margin-bottom: 8px;
    padding: 0 6% 0;
  }

  .article_info p.date {
    font-size: 2.0rem;
    margin-top: .08em;
  }

  .article_info ul.tags {
    display: flex;
    flex-wrap: wrap;
  }

  .article_info ul.tags li {
    margin-bottom: .4em;
  }

  .article_info ul.tags li:first-child {
    margin-left: 9em;
}

  .article_info ul.tags li a {
    margin-right: .2em;
    padding: 0.5em 0.6em;
  }


  /* --- lead --- */

  .lead {
    padding-top: 0;
  }

  .lead p {
    font-size: 1.6rem;
    line-height: 2.0;
  }
  
  .lead .stickout {
    width: calc(100% + 15%);
    margin: 0 -8.2% 6%;
  }
  
  .lead .stickout img {
    width: 100%;
  }
  
  .lead .stickout .caption {
    font-size: 1.4rem;
    margin-top: .4em;
    margin-left: 0;
    padding: 0 7%;
  }


  /* --- txt --- */

  h1 {
    font-size: 2.6rem;
    margin: 0.6em 0 0.4em;
    padding: 0 6% 0;
  }

  .txt h2 {
    font-size: 2.4rem;
    margin: 0 0 0.8em;
  }

  .txt h3 {
    font-size: 2.0rem;
    margin: 1.2em 0 0.8em;
  }

  .txt h2::before,
  .txt h3::before {
    width: 5%;
    left: -7%;
  }

  .txt h4 {
    font-size: 2.0rem;
  }

  .txt p {
    font-size: 1.4rem;
    line-height: 1.8;
    font-weight: 400;
    margin-bottom: 1.6em;
  }

  .txt .stickout {
    width: calc(100% + 15%);
    margin: 10% -8.2% 8%;
  }

  .txt .stickout .caption {
    font-size: 1.2rem;
    margin-top: .4em;
    padding: 0 7%;
  }


  /* --- information --- */

  .information {
    margin-top: 8%;
  }

  .information .h_title {
    width: 60px;
    height: auto;
    top: -16px;
    left: 0;
  }

  .information .info_txt {
    padding-left: 18%;
  }

  .information h3 {
    font-size: 2.0rem;
  }

  .information p {
    font-size: 1.4rem;
  }



  /* --- speakers --- */

  .information .speakers ul {
    display: block;
    flex-wrap: wrap;
    justify-content: space-between;
  }

  .information .speakers li {
    width: 100%;
  }

  /* speakers : mc */

  .information .mc {
    margin-bottom: 8%;
  }


  /* --- open mic --- */

  .openmic {
    margin-top: 40px;
    padding-top: 40px;
  }

  .openmic .h_title {
    height: 60px;
    top: -16px;
    left: 0;
  }

  .openmic h3 {
    font-size: 2.0rem;
    margin-top: 6%;
    margin-bottom: 16px;
  }

  .openmic p {
    font-size: 1.4em;
    line-height: 1.8;
  }

  /* --- pickup --- */

.pickup {
  margin-top: 40px;
  padding-top: 40px;
}

.pickup .h_title {
  height: 60px;
  top: -16px;
  left: 0;
}

.pickup h3 {
  font-size: 2.0rem;
  margin-top: 6%;
  margin-bottom: 16px;
}

.pickup p {
  font-size: 1.4em;
  line-height: 1.8;
  }


  /* --- ec-link --- */

  .ex-link {
    padding-bottom: 1.6%;
  }


  /* --- footer --- */

  .footer_inner {
    display: block;
    justify-content: center;
    width: 100%;
    padding: 20px 8px 20px 8px;
  }
  
  .footer_inner ul {
    order: 0;
    flex-wrap: wrap;
    justify-content: left;
    margin-left: 0;
    margin-bottom: 2em;
  }

  .footer_inner li {
    margin-bottom: 8%;
  }

  .footer_inner li:last-child {
    border-left: none;
    border-top: 1px solid #ddd;
    padding-top: 8%;
    padding-left: 0;
  }

  .footer_inner li img {
    height: 40px;
  }

  .footer_inner .footer_copyright {
    order: 1;
    text-align: center;
  }

  .footer_inner ul.footer_link {
    display: inline-block;
  }


  /* btn_ex-link */

  .btn_ex-link {
    display: block;
  }

  .btn_ex-link li {
    width: 100%;
  }

  .btn_ex-link li a {
    font-size: 1.6rem;
    padding: .7em 0.8em;
}


  /* btn_home */

  .btn_home {
    width: 100%;
  }

  .btn_home {
    width: 100%;
    margin: 1.4em auto;
    padding: 1em 0.8em 1em 0.8em;
    font-size: 1.6rem;
  }

  .btn_home::before {
    width: 28px;
    height: 28px;
  }


  /* --- btn_sns --- */

  .btn_sns {
    width: 100%;
    padding-right: 4%;
  }


  /* --- page-top --- */

  .page-top {
    bottom: 40px;
    width: 64px;
    height: 60px;
  }

}