:root {
  --lightGreen: #01B97E;
  --lightBlue: #178DA8;

  --darkBlue: #023080;
  --darkBlue2: #0E6B6F;
  --greenBlue: #038D75;
  --greenBlue2: #058875;
  --oliveGreen: #1fb4a0;

  --lightGrey: #B3B2B2;
  --darkGrey: #6B6B6B;

  --breakLine: #33A297;
  --bubble: #2CA89B;

  --linkButton: linear-gradient(90deg, var(--darkBlue), var(--lightGreen));
  --linkButtonColor: #ECF042;
  
  --button: #74928F;

  --box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);

  --japanese: "Noto Sans JP";
  --english: "Roboto Condensed";
}

* {
  margin: 0;
  box-sizing: border-box;
  text-decoration: none;
  scroll-behavior: smooth;
}

a {
  color: black;
}

body {
  height: 200vh;
  color: #FFFFFF;
  font-family: var(--japanese), var(--english);
  font-weight: 400;
}

body > * {
  padding-left: .5em;
  padding-right: .5em;
}

button:hover {
  cursor: pointer;
}


/* Navbar */
.navbar__wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100vw;
  padding-top: 1em;
  padding-bottom: 1em;
  height: 5em;
  margin-bottom: 5em;
  position: fixed;
  z-index: 8999;
  backdrop-filter: blur(1em);
  -webkit-backdrop-filter: blur(1em);
}

.navbar__logolink {
  display: none;
}

.navbar__logo {
  width: 100%;
  height: auto;
}
.navbar__links {
  display: flex;
  align-items: center;
  gap: 3vw;
  font-size: .75em;
  letter-spacing: .15em;
  justify-content: center;
}

.navbar__links > a {
  color: white;
  text-wrap: nowrap;
}

a.navbar__button {
  display: flex;
  text-wrap: nowrap;
  justify-content: space-between;
  letter-spacing: .1em;
  padding: .5em 1em;
 /* background: var(--linkButton); */
  background-color: rgba(255, 251, 0, 0.7);
  border:solid 2px var(--linkButtonColor);
  border-top-left-radius: .5em;
  border-bottom-right-radius: .5em;
  -webkit-text-fill-color: black;
  width: max-content;

    text-transform: uppercase;
    cursor: pointer;
    box-shadow: 0 0 5px var(--linkButtonColor), 0 0 10px var(--linkButtonColor), 0 0 20px var(--linkButtonColor);
    transition: 0.3s ease;
}

a.navbar__button:hover {
  background: var(--linkButtonColor);
    color: var(--darkBlue);
    box-shadow: 0 0 10px var(--linkButtonColor), 0 0 20px 
}

.navbar__linkButton {
  display: none;
}

.navbar__button > img {
  margin-left: .5em;
  width: 2.5em;
  padding-right: 1em;
}
.concept__text p span{
  display: inline-block;
}


/* Frontpage */
.frontpage {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  padding-top: 5em;
  padding-left: 0;
  padding-right: 0;

  background-image: url(assets/background_image3.svg);
  background-repeat: no-repeat;
  background-size: cover;
  /* background: linear-gradient(90deg, var(--oliveGreen), var(--greenBlue), var(--darkBlue)); */
}

.frontpage__left {
  display: flex;
  flex-direction: column;
  padding-top: 1em;
  gap: 1em;
}

.frontpage__header img {
  display: block;
}
.frontpage__image{
  object-fit: contain;
  margin-bottom: 1em;
}
@media only screen and (min-width: 1024px) {
  .frontpage__image {
    align-self: center;
  }
}

.frontpage__personImageOne {
  width: 8em;
}

.frontpage__personImage {
  width: 8em;
}

.frontpage__label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1em;
  padding: 0.4em 0;
  margin-top: 2em;
  text-wrap: nowrap;
  align-self: center;
  background-image: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, 1) 25% 75%, rgba(255, 255, 255, 0));
  width: 100%;
  color: #000;
}

.frontpage__label > img {
  width: 14em;
}

.frontpage__line {
  width: 100%;
  padding: 1.5px;
  background: var(--lightGreen);
  box-shadow: 0px 2px 4px rgba(0, 0, 0, 0.4);
  margin: 1em;
  margin-left: 0;
}

.frontpage__time {
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.5);
  font-weight: 700;
  display: flex;
  align-items: center;
  margin: 1em;
  align-self: center;
}

.frontpage__timestamp {
  font-size: 1.75em;
}

.frontpage__kanji {
  font-size: 1em;
  margin-left: .5em;
  margin-right: 1em;
}

.frontpage__arrow {
  margin: .75em;
}

.frontpage__right {
  display: flex;
      flex-direction: column;
}

.frontpage__person {
  display: flex;
  margin-top: 1em;
  padding-right: 1em;
}

.frontpage__personTextLine {
  margin-top: .25em;
  margin-right: 1em;
  margin-bottom: .25em;
  padding: 1.5px;
  background: var(--lightGreen);
}

.frontpage__personText {
  text-wrap: nowrap;
}

.frontpage__personInfo {
  font-size: .75em;
  letter-spacing: .125em;
}

.frontpage__personName {
  margin-top: .5em;
  letter-spacing: .125em;
}

.frontpage__personWrapper{
  display: flex;
  flex-direction: column;
  gap: 2em;
  justify-content: left;
}
.frontpage__personOne{
  margin-bottom: 2em;
}
.frontpage__button {
  align-self: center;
  margin-bottom: 2em;
}

.frontpage__wrap{
}

.frontpage__bottom {
  width: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  padding: 3em;
  text-align: center;
  font-size: 1.38em;
}


/* Concept */
.concept {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(var(--darkBlue) 85%, var(--greenBlue));
  padding-left: 5vw;
  padding-right: 5vw;
}

.concept__header {
  padding-top: 5em;
  max-width: 90vw;
}

.concept__text {
  display: flex;
  flex-direction: column;
  gap: 1em;
  font-size: .875em;
  text-align: center;
  max-width: 50em;
  padding-top: 5em;
  padding-bottom: 10em;
  line-height: 2em;
  letter-spacing: .1em;
}

.concept h2 {
  margin-bottom: 1.6em;
}

/* Speakers */
.speakers {
  display: flex;
  flex-direction: column;
  gap: 5em;
  align-items: center;
  background: linear-gradient(var(--greenBlue), var(--greenBlue2));
  padding-bottom: 3em;
}

.speakers__header {
  max-width: 90vw;
}

.speakers__person {
  display: flex;
  flex-direction: column;
  gap: 1.5em;
  max-width: 85vw;
}

.speakers__image {
  width: 7.5em;
  height: 7.5em;
}

.speakers__title, .speakers__name {
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1.5em;
}

.speakers__line {
  padding: 1px;

  background: var(--breakLine);
  width: 20em;
  margin-bottom: 1em;
}

.speakers__info {
  letter-spacing: .125em;
  line-height: 1.75em;
}

.speakers__text {
  line-height: 1.5em;
  margin-top: 1em;
  letter-spacing: .1em;
  font-size: .875em;
}



/* Timetable */
.timetable {
  display: flex;
  align-items: center;
  flex-direction: column;
  padding-top: 7em;
  padding-bottom: 5em;
  background:  url(./assets/line01.svg), linear-gradient(var(--greenBlue2), var(--darkBlue2) 5%, var(--darkBlue), var(--darkBlue) 75%, var(--greenBlue));
  background-repeat: repeat-y;
  background-size: contain;
}

.timetable__titleWrapper {
  width: fit-content;
}

.timetable__header {
  align-self: center;
  margin-bottom: 5em;
  max-width: 90vw;
}

.timetable__wrapper {
  position: relative;
  max-width: 95vw;
}
.timetable__wrapper::after {
  content: "";
  position: absolute;
  top: 2em;
  left: 0;
  height: calc(100% - 4em);
  border: 1px solid white;
}

.timetable__timestamp {
  display: flex;
  align-items: center;
  margin: 1em;
  margin-left: -.2em;
}

.timetable__bubble {
  background: var(--bubble);
  padding: .25em;
  border-radius: .25em;
  z-index: 1;
}

.timetable__line {
  padding: .5px;
  width: 3em;
  margin-right: .5em;
  background: white;
}

.timetable__time {
  width: 4em;
  font-size: 1.25em;
  font-weight: 700;
  line-height: 1.5em;
  letter-spacing: .125em;
}

.timetable__event {
  font-size: 1.125em;
  font-weight: 700;
  letter-spacing: .1125em;
  line-height: 1.4em;
}

.timetable__speaker {
  display: flex;
  flex-direction: column;
  margin: 1em;
  margin-left: 2em;
  margin-bottom: 5em;
  gap: 1em;
}

.timetable__image {
  width: 6em;
}

.timetable__title {
  font-weight: 700;
  line-height: 1.5em;
  letter-spacing: .1em;
  margin-bottom: .5em;
}

.timetable__breakline {
  margin-bottom: 1.25em;
  margin-top: .5em;
  width: 100%;
}

.timetable__info {
  font-size: .75em;
  line-height: 1.25em;
  letter-spacing: .075em;
}

.timetable__name {
  font-size: .875em;
  font-weight: 700;
  line-height: 1.375em;
  letter-spacing: .0875em;
  margin-top: 1em;
  margin-bottom: 1em;
}

.timetable__profileButton {
  font-weight: 600;
  line-height: 1.5em;
  font-size: .875em;
  letter-spacing: .13em;
  padding: .5em;
  padding-left: 1em;
  padding-right: 1em;
  border: none;
  border-radius: .5em;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  color: white;
  background: var(--button);
}

.timetable__button {
  align-self: center;
  margin-top: 1em;
  margin-bottom: 2em;
}

/* 蟇ｾ隲��縲古励€� */
.timetable__cross{
  display: block;
  position: relative;
  margin: 0 auto;
  width: 30px;
  height: 30px;
}
.timetable__cross::before, .timetable__cross::after { /* 蜈ｱ騾夊ｨｭ螳� */
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px; /* 譽偵�蟷�ｼ亥､ｪ縺包ｼ� */
  height: 2em; /* 譽偵�鬮倥＆ */
  background: #ddd;
}
.timetable__cross::before {
  transform: translate(-50%,-50%) rotate(45deg);
}
.timetable__cross::after {
  transform: translate(-50%,-50%) rotate(-45deg);
}

@media only screen and (max-width: 1024px) {
  .timetable__dialogue{
    display: flex;
    justify-content: flex-start; 
  }
  .timetable__cross{
    display: inline-block;
    margin: auto 0.6em;
  }
}


/* Outline */
.outline {
  display: flex;
  flex-direction: column;
  align-items: center;
  background-image: url("assets/bk_Whisk_f91d0da751.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  padding-bottom: 5em;
  padding-left: 5vw;
  padding-right: 5vw;
}

.outline__header {
  margin-top: 5em;
  margin-bottom: 5em;
  max-width: 90vw;
}

.outline__wrapper {
  margin-top: 2em;
  margin-bottom: 5em;
}

.outline__info {
  display: flex;
  flex-direction: column;
  align-items: start;
}

.outline__title {
  font-size: 1.125em;
  font-weight: 700;
  line-height: 1.75em;
  letter-spacing: .175em;
  min-width: 12em;
  margin-bottom: .5em;
}

.outline__text {
  line-height: 2em;
  font-size: .875em;
  letter-spacing: .1em;
}

.outline__line {
  padding: .5px;
  margin-top: 1em;
  margin-bottom: 1em;
  width: 100%;
  background: white;
}

.outline__button {
  margin: auto;
  margin-top: 5em;
}



/* Sponsor */
.sponsor {
  background: linear-gradient(90deg, #416F63, var(--darkBlue));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.sponsor__header {
  margin-top: 5em;
  margin-bottom: 6em;
  max-width: 90vw;
}

.sponsor__wrapper {
  background: white;
  border-radius: 2em;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3em;
  padding: 1em;
}

.sponsor__goldSponsors {
  margin-bottom: 4em;
  text-align: center;
}

.sponsor__silverSponsors {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1em;
}

.sponsor__gold, .sponsor__silver {
  font-weight: 700;
  font-size: 3.75em;
}

.sponsor__gold {
  color: #CBAB00;
}

.sponsor__silver {
  color: #9D9D9D;
}

.TProject__logo {
  width: 10em;
}

.JMS__logo {
  width: 10em;
}

.BroadLeaf__logo {
  width: 6em;
  padding-bottom: 1em;
}
.Hacobu__logo{
  width: 15em
}

/* Footer */
.footer {
  width: 100%;
  max-width: 95vw;
  margin-top: 3em;
  margin-bottom: 3em;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer__logo {
  height: auto;
  width: 15em;
  margin-bottom: 2em;
}

.footer__text {
  display: flex;
  flex-direction: column;
  align-items: start;
  justify-content: end;
}

.footer__title {
  font-size: .875em;
  line-height: 1.625em;
  letter-spacing: .05em;
}

.footer__link {
  display: flex;
  flex-direction: column;
}

.footer__linkText {
  font-size: .875em;
  line-height: 1.625em;
  letter-spacing: .05em;
}

.footer__line {
  padding: 1px;
  margin-top: .5em;
  margin-bottom: .5em;
  background: var(--lightGreen);
}

.footer__linkAdress {
  line-height: 1.5em;
  text-decoration: underline;
  color: white;
}



/* Popup */
.popup {
  width: 100vw;
  height: 100vh;
  padding-top: 5em;
  position: fixed;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--darkBlue);
  overflow-y: scroll;
}

.popup__wrapper {
  width: 80%;
  display: flex;
  flex-direction: column;
  margin-top: auto;
  margin-bottom: 5vh;
}

.popup__cross {
  position: absolute;
  top: 2em;
  right: 2em;
}

.popup__close {
  background: none;
  border: none;
}

.popup__headerWrapper {
  font-weight: 700;
  font-size: 1.5em;
  line-height: 2.125em;
  letter-spacing: .175em;
}

.popup__line {
  padding: 1px;
  margin-top: 1em;
  margin-bottom: 1em;
  background-color: var(--breakLine);
}

.popup__personWrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 2em;
}
div.popup__speakerWrapper div.popup__personWrapper:last-child, 
div.popup__speakerWrapper div.popup__personWrapper:nth-child(n+3) {
  display: none;
}

.popup__personImage, .popup__personImage_2, .popup__personImage_3 {
  width: 15em;
  margin: 2em;
  margin-left: 0;
}

.popup__personHeader, .popup__personHeader_2, .popup__personHeader_3 {
  font-size: 1.25em;
  line-height: 1.75em;
  letter-spacing: .125em;
}

.popup__personName, .popup__personName_2, .popup__personName_3 {
  font-size: 1.75em;
  line-height: 2.5em;
  letter-spacing: .175em;
}

.popup__personText, .popup__personText_2, .popup__personText_3 {
  font-size: .875em;
  line-height: 1.5em;
  letter-spacing: .025em;
}

.popup__footerHeader {
  font-weight: 700;
  font-size: 1.5em;
  line-height: 2em;
  letter-spacing: .2em;
  margin-top: 2em;
}

.popup__footerText {
  margin-top: 2em;
  line-height: 1.75em;
  letter-spacing: .1em;
}

.popup__button {
  color: white;
  font-weight: 600;
  font-size: 1.25em;
  line-height: 1.5em;
  letter-spacing: .13em;
  background: var(--button);
  margin: auto;
  margin-top: 4em;
  padding: .25em;
  padding-left: 3em;
  padding-right: 3em;
  border-radius: .5em;
  box-shadow: var(--box-shadow);
}

.hidden {
  display: none;
}

  .navbar__wrapper{
    height: auto;
  }
  .navbar__links {
    font-size: 1em;
    padding: 0 2.6em;
    width: 100%;
    flex-wrap:wrap;
  }
@media only screen and (min-width: 378px) { 
  .sponsor__wrapper {
      padding: 2.6em;
    }
}

@media only screen and (min-width: 480px) {
  .frontpage__personTwo, .frontpage__personThree {
    width: 100%;
  }
  .frontpage__personImageOne {
    width: 13em;
  }
  .frontpage__timestamp {
    font-size: 2.25em;
  }
  .timetable__wrapper {
    max-width: 30em;
  }
}

@media only screen and (min-width: 375px) {
  .sponsor__goldLogo {
    width: 40vw;
    max-width: 70vw;
  }
  .sponsor__silverSponsors {
    display: block;
    width: 100%;
  }
  img.sponsor__silverLogo, img.sponsor__goldLogo {
    display: block;
    padding:0;
    margin:0 auto 4em;
  }
}

  @media only screen and (max-width: 1024px) {
  .frontpage__left {
    gap: 0;
    padding: 0 5vw;
  }
  }

  @media only screen and (min-width: 1024px) {
  .navbar__links {
    padding: 0;
  }
  }


@media only screen and (max-width: 480px) {
  .frontpage__image, .frontpage__header img.frontpage__image {
    width: 90vw;
    max-width: 90vw;
  }
  .frontpage__line {
    width: 65%;
  }
  span.frontpage__timestamp {
    font-size: 8vw;
  }
  .frontpage__wrap {
    padding-left: 0;
    padding-right: 0;
    background-position: 7em 0;
  }
}
  

  @media only screen and (min-width: 768px) {
  .speakers__person {
    flex-direction: row;
  }
  .frontpage__personWrapper {
    display: flex;
    flex-wrap: wrap;
  }
  .frontpage__personTwo, .frontpage__personThree {
    width: auto;
  }

  .popup__personWrapper {
    flex-direction: row;
  }

    .sponsor__wrapper {
      padding: 5em;
      padding-left: 8em;
      padding-right: 8em;
    }
  
    .sponsor__silverSponsors {
      gap: 5em;
    }
  
    .sponsor__goldLogo {
      width: 100%;  
    }
  
    .TProject__logo {
      width: 12em;
    }
  
    .JMS__logo {
      width: 15em;
    }
  
    .BroadLeaf__logo {
      width: 9em;
      padding-top: 1em;
    }
}

.frontpage__line {
  width: 65%;
}
.frontpage__timestamp {
  font-size: 3em;
}

@media only screen and (min-width: 1024px) {
  .frontpage__personWrapper {
    flex-direction: row;
    justify-content: space-between;
  }
  .navbar__logolink {
      min-width: 7em;
      max-width: 7em;
      display: block;
      margin-right: 2em;
    }
  .navbar__wrapper {
    padding-left: 5em;
    padding-right: 5em;
    justify-content: space-etween;
  }
  .frontpage__image {
    margin:0;
  }
  .navbar__button {
    padding: .75em 1.5em;
    font-size: 1.25em;
  }
  .navbar__button > img {
    margin-left: 1em;
    width: 3.5em;
    padding-right: 1.5em;
  }
  .navbar__linkButton {
    display: block
  }
  body > * {
    padding-left: 3em;
    padding-right: 3em;
  }



    .frontpage__image {
      max-width: none;
      align-self: flex-start;
      width: 100%;
      max-width: 760px;
      margin: 0;
    }
    .frontpage__kanji {
      font-size: 1.25em;
    }
    .frontpage__time {
      margin: 2em;
      margin-left: 0;
      align-self: flex-start;
    }
    .frontpage__personImageOne {
      width: 12vw;
    }
    .frontpage__personImage {
      width: 14em;
    }
    .frontpage__left, .frontpage__right {
      flex-grow: 1;
      justify-content: center;
    }
    .frontpage__button {
      align-self: last baseline;
    }

    .frontpage__wrap {
      padding: 0 5em ;
      display: flex;
       flex-direction: row;
       flex-grow: 1;
       gap: 3vw;
    }
    .frontpage__personTwo, .frontpage__personThree{
      width:16vw;
    }
    .frontpage__personTwo img, .frontpage__personThree img{
      width:100%;
      position: relative;
    }
    .frontpage__personTwo img:before,  .frontpage__personThree img::before{
      content: "";
      display: block;
      padding-top: 56.25%;  
    }


    .concept {
      padding: 5em;
      padding-top: 0;
    }



    .speakers__image {
      width: 16em;
      height: 16em;
    }
    .speakers__person {
      gap: 3em;
      width: 100%;
      max-width: 70em;   
    }
    .speakers__title,
    .speakers__name {
      font-size: 1.25em;
      letter-spacing: .2em;
      line-height: 2em;
    }
    .speakers__text {
      letter-spacing: .1em;
      font-size: 1em;
    }
    .speakers__header {
      margin-bottom: 5em;
    }



    .timetable__wrapper {
      max-width: 70em;
    }
    .timetable__speaker {
      flex-direction: row;
      align-items: center;
      margin: 2em;
      margin-left: 4em;
      gap: 3em;
    }
    .timetable__image {
      width: 10em;
    }
    .timetable__title {
      font-size: 1.5em;
      letter-spacing: .15em;
    }
    .timetable__profileButton {
      font-size: 1.125em;
    }



    .outline__info {
      display: flex;
      flex-direction: row;
      align-items: center;
    }
    .outline__title {
      font-size: 1.25em;
      line-height: 1.75em;
      letter-spacing: .175em;
      margin-bottom: 0;
    }
    .outline__text {
      font-size: 1.125em;
      line-height: 2em;
      letter-spacing: .2em;
    }



    .footer {
      max-width: 90vw;
      margin-top: 8em;
      margin-bottom: 8em;
      flex-direction: row;
      justify-content: space-around;
    }
    .footer__logo {
      margin-bottom: 0;
    }
}