@charset "UTF-8";

/* ================================================== */
/* hero */
/* ================================================== */
#hero {
  background-color: #000000;
  height: 100vh; /* 画面いっぱいに表示する場合 */
  overflow: hidden;
  position: relative;
  width: 100%;  
}

#hero video {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 100%;
  min-height: 100%;
  transform: translate(-50%, -50%);
  object-fit: cover; /* 動画を要素に合わせて表示 */
  opacity: 0.6;
}

#hero .content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1; /* 動画の上に表示 */
  color: white; /* テキストの色 */
}

#hero h1 {
  line-height: 0;
  margin: 0 0 var(--margin-bottom-content-item);
  text-align: center;
  width: 488px;
}
#hero h1 img {
  width: 100%;
}

#hero .buttons .button-conference,
#hero .buttons .button-community {
  background-color: transparent;
  border: 2px solid var(--color-white);
  flex: 1;
}
#hero .buttons .button-conference:hover,
#hero .buttons .button-community:hover {
  color: var(--color-white);
}

#hero .buttons .button-conference:hover {
  background-color: var(--color-purple-highlight);
  border: 2px solid var(--color-purple-highlight);
}

#hero .buttons .button-community:hover {
  background-color: var(--color-blue-highlight);
  border: 2px solid var(--color-blue-highlight);
}

@media screen and (max-width: 767px) {
  #hero h1 {
    width: 335px;
  }
}

/* ================================================== */
/* about-less */
/* ================================================== */
#about-less {
  background: url(../../images/2026/about-less_background.png) no-repeat bottom center;
  background-size: cover;
  padding-bottom: 25%;
}

@media screen and (max-width: 767px) {
  #about-less {
    background: none;
    padding-bottom: 10rem;
  }
}

/* ================================================== */
/* about-conference */
/* ================================================== */
#about-conference {
  background: url(../../images/2026/about-conference_background.jpg) no-repeat bottom right;
  background-size: cover;
}

/* ================================================== */
/* time-table */
/* ================================================== */
#time-table table {
  table-layout: fixed;
}

#time-table table th {
  width: 100px;
}

#time-table col.col-time {
  width: 100px;
}

#time-table col.col-session {
  width: calc((100% - 100px) / 3);
}

#time-table .border-left_purple-dark {
  border-left: 1px solid var(--color-purple-dark);
}

#time-table .session-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

#time-table .session-layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

#time-table .session-layout .session-info {
  flex: 1;
  min-width: 0;
}

#time-table .session-layout .session-presenter {
  flex-shrink: 0;
}

#time-table td:not([colspan]) .session-layout {
  flex-direction: column;
  align-items: flex-start;
}

#time-table td:not([colspan]) .session-layout .session-presenter {
  flex-shrink: unset;
}

#time-table .session-split-2 {
  display: flex;
  margin: -0.5em -0.75em;
}

#time-table .session-split-2 .session-split-item {
  flex: 1;
  padding: 0.5em 0.75em;
}

#time-table .session-split-2 .session-split-item + .session-split-item {
  border-left: 1px solid var(--color-purple-dark);
}

#time-table .session-split-2 .session-split-item .session-layout {
  flex-direction: column;
  align-items: flex-start;
}

#time-table .session-split-2 .session-split-item .session-layout .session-presenter {
  flex-shrink: unset;
}

#time-table .presenter-with-photo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

#time-table .presenter-photo {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

@media screen and (max-width: 767px) {
  #time-table .session-layout {
    flex-direction: column;
    align-items: flex-start;
  }

  #time-table .session-layout .session-presenter {
    flex-shrink: unset;
  }

  #time-table .session-split-2 {
    flex-direction: column;
    margin: -0.5em 0;
  }

  #time-table .session-split-2 .session-split-item {
    padding: 0.5em 0;
  }

  #time-table .session-split-2 .session-split-item + .session-split-item {
    border-left: none;
    border-top: 1px solid var(--color-purple-dark);
  }
}

/* ================================================== */
/* keynote */
/* ================================================== */
#keynote .card {
  background-color: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--color-purple);
}

#keynote .keynote-speaker-card {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
}

#keynote .keynote-speaker-photo-wrap {
  flex-shrink: 0;
}

#keynote .keynote-speaker-photo {
  width: 180px;
  height: 180px;
  object-fit: cover;
}

#keynote .keynote-speaker-affiliation {
  margin-bottom: var(--margin-bottom-content-item);
}

#keynote .keynote-speaker-name {
  margin-bottom: 1rem !important;
}

@media screen and (max-width: 767px) {
  #keynote .keynote-speaker-card {
    flex-direction: column;
    align-items: center;
  }

  #keynote .keynote-speaker-info {
    text-align: center;
  }
}

@media screen and (min-width: 768px) {
  #keynote .keynote-speaker-card-reverse {
    flex-direction: row-reverse;
  }
}

/* ================================================== */
/* vision */
/* ================================================== */
#vision {
  background: url(../../images/2026/vision_background.png) no-repeat bottom center var(--color-purple);
  background-size: 100%;
  padding-bottom: 25%;
}

/* ================================================== */
/* less-company-bv */
/* ================================================== */
@media screen and (max-width: 767px) {
  #less-company-bv .title.is-3 {
    font-size: var(--font-size-xlarge);
  }
  #less-company-bv .title.is-3 .is-3_small {
    font-size: var(--font-size-normal);
  }
}

/* ================================================== */
/* conference-sponsor */
/* ================================================== */
#conference-sponsor .button {
  min-width: 220px;
}

/* ================================================== */
/* community */
/* ================================================== */
#community .button {
  margin-top: var(--margin-bottom-block-item);
}

#community .image img {
  box-shadow: 8px 8px 0 rgba(0,0,0,0.4);
}