/* 주요 연사(Speakers) 목록 및 탭 스타일시트 */
/* ===== Speakers ===== */
.section-speakers,
.section-speakers.section.is-visible {
  position: relative;
  min-height: unset;
  padding: var(--section-padding) 0 clamp(20px, 4vw, 20px);
  background: radial-gradient(
    circle at 50% 30%,
    rgba(47, 107, 255, 0.07) 0%,
    rgba(14, 17, 24, 1) 75%
  );
  border-top: 1px solid var(--section-divider, rgba(255, 255, 255, 0.18));
  color: var(--color-white);
  overflow: hidden;
  opacity: 1 !important;
  transform: none !important;
  transition: opacity 0.3s ease !important;
  backface-visibility: hidden;
}
.section-speakers > .container {
  width: 100%;
  overflow: visible;
}
.section-speakers__deco {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.section-speakers__image {
  position: absolute;
  inset: 0;
  background: url("./images/sec2-bg.jpg") center / cover no-repeat;
  opacity: 0.42;
  mask-image: linear-gradient(
    to top left,
    rgba(0, 0, 0, 0.35) 0%,
    rgba(0, 0, 0, 0.85) 55%,
    #000 100%
  );
  -webkit-mask-image: linear-gradient(
    to top left,
    rgba(0, 0, 0, 0.35) 0%,
    rgba(0, 0, 0, 0.85) 55%,
    #000 100%
  );
}
.section-speakers__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top left,
    rgba(0, 0, 0, 0.82) 0%,
    rgba(0, 0, 0, 0.42) 42%,
    transparent 72%
  );
}
.section-speakers__deco::before {
  display: none;
}
.section-speakers .container {
  position: relative;
  z-index: 1;
}
.section-speakers .section-header {
  margin-bottom: 28px;
}
.section-speakers__lead {
  max-width: 720px;
  margin: -8px auto 28px;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.62);
  word-break: keep-all;
}
.section-speakers__tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 0 auto 52px;
  max-width: 960px;
}
.section-speakers__tab {
  --tab-color: var(--color-point);
  --tab-color-rgb: var(--color-point-rgb);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 95px;
  min-height: 42px;
  padding: 10px 20px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  color: rgba(255, 255, 255, 0.62);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  transition:
    color var(--transition),
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
  white-space: nowrap;
}
.section-speakers__tab[data-tab="opening"] {
  --tab-color: #e84545;
  --tab-color-rgb: 232, 69, 69;
}
.section-speakers__tab[data-tab="keynote"] {
  --tab-color: #45b2cf;
  --tab-color-rgb: 69, 178, 207;
}
.section-speakers__tab[data-tab="session-2"] {
  --tab-color: #004e9f;
  --tab-color-rgb: 0, 78, 159;
}
.section-speakers__tab[data-tab="session-1"] {
  --tab-color: #f37021;
  --tab-color-rgb: 243, 112, 33;
}
.section-speakers__tab[data-tab="session-3"] {
  --tab-color: #18623b;
  --tab-color-rgb: 24, 98, 59;
}
.section-speakers__tab[data-tab="session-4"] {
  --tab-color: #e21e7c;
  --tab-color-rgb: 226, 30, 124;
}
.section-speakers__tab[data-tab="closing"] {
  --tab-color: #e84545;
  --tab-color-rgb: 232, 69, 69;
}
.section-speakers__tab:hover {
  color: #fff;
  border-color: var(--tab-color);
  background: var(--tab-color);
  box-shadow: 0 8px 22px rgba(var(--tab-color-rgb), 0.28);
}
.section-speakers__tab.is-active {
  color: #fff;
  background: var(--tab-color);
  border-color: var(--tab-color);
  box-shadow: 0 8px 22px rgba(var(--tab-color-rgb), 0.28);
}
.section-speakers__slider-wrap {
  position: relative;
  display: block;
  width: 100%;
  margin-left: 0;
  margin-right: 0;
  --speakers-visible: 5;
  --speakers-gap: 20px;
  --speakers-arrow-size: 52px;
  --speakers-arrow-gap: 16px;
  overflow: visible;
}
.section-speakers__viewport {
  width: 100%;
  overflow: visible;
  padding: 30px 0 110px;
  container-type: inline-size;
  container-name: speakers-viewport;
}
.section-speakers__track {
  display: flex;
  align-items: flex-start;
  gap: var(--speakers-gap);
  will-change: transform;
  width: max-content;
}

/* 넷플릭스 UI 스타일 연사 카드 (옵션 1: 정비율 팝오버 & 가로 분할 상세 레이아웃) */
.section-speakers__card {
  --speaker-accent: #e84545;
  --speaker-accent-rgb: 232, 69, 69;
  --speaker-details-depth: 104px;
  --speaker-card-w: calc(
    (100cqw - (var(--speakers-visible) - 1) * var(--speakers-gap)) /
      var(--speakers-visible)
  );
  position: relative;
  display: flex;
  flex-direction: column;
  flex: 0 0 var(--speaker-card-w);
  width: var(--speaker-card-w);
  min-width: 0;
  border-radius: 14px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-align: left;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  opacity: 1;
  overflow: visible; /* 가로/세로 팝오버 영역의 넉넉한 노출 */
  transform: scale(1);
  transform-origin: center top;
  backface-visibility: hidden;
  will-change: transform, box-shadow;
  transition:
    transform 0.35s cubic-bezier(0.2, 0, 0.1, 1),
    box-shadow 0.35s ease,
    border-color 0.35s ease,
    border-radius 0.35s cubic-bezier(0.2, 0, 0.1, 1),
    border-bottom-color 0.35s ease,
    z-index 0.1s ease;
  z-index: 1;
  isolation: isolate;
  cursor: pointer;
}
.section-speakers__card.is-out-of-view {
  visibility: hidden;
  pointer-events: none;
}

.section-speakers__surface {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  border-radius: inherit;
}

.section-speakers__card[data-category~="opening"] {
  --speaker-accent: #e84545;
  --speaker-accent-rgb: 232, 69, 69;
}
.section-speakers__card[data-category~="keynote"] {
  --speaker-accent: #45b2cf;
  --speaker-accent-rgb: 69, 178, 207;
}
.section-speakers__card[data-category~="session-2"] {
  --speaker-accent: #004e9f;
  --speaker-accent-rgb: 0, 78, 159;
}
.section-speakers__card[data-category~="session-1"] {
  --speaker-accent: #f37021;
  --speaker-accent-rgb: 243, 112, 33;
}
.section-speakers__card[data-category~="session-3"] {
  --speaker-accent: #18623b;
  --speaker-accent-rgb: 24, 98, 59;
}
.section-speakers__card[data-category~="session-4"] {
  --speaker-accent: #e21e7c;
  --speaker-accent-rgb: 226, 30, 124;
}
.section-speakers__card[data-category~="closing"] {
  --speaker-accent: #e84545;
  --speaker-accent-rgb: 232, 69, 69;
}

/* 세로 확대를 억제하고 카드가 위로 가볍게 떠오르는 호버 효과 */
.section-speakers__card:hover,
.section-speakers__card.is-hovered {
  transform: translateY(-4px);
  z-index: 150 !important;
  border-color: rgba(var(--speaker-accent-rgb), 0.85);
  box-shadow:
    0 16px 32px rgba(0, 0, 0, 0.85),
    0 0 14px rgba(var(--speaker-accent-rgb), 0.25);
}

/* 양쪽 끝(1번째 및 마지막) 카드가 확대될 때 부모 블록이 좌우로 흔들리거나 화면 밖으로 넘치지 않도록 transform-origin 지정 */
.section-speakers__card:first-child:hover,
.section-speakers__card:first-child.is-hovered {
  transform-origin: left top;
}
.section-speakers__card:first-child {
  transform-origin: left top;
}

.section-speakers__card:last-child:hover,
.section-speakers__card:last-child.is-hovered {
  transform-origin: right top;
}
.section-speakers__card:last-child {
  transform-origin: right top;
}

.section-speakers__photo {
  position: relative;
  z-index: 0;
  width: 100%;
  height: 350px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 13px;
  background: radial-gradient(
    circle at 50% 35%,
    #f3f4f7 0%,
    #d9dde4 60%,
    #b3b9c4 100%
  );
  transition: transform 0.35s cubic-bezier(0.2, 0, 0.1, 1);
}

.section-speakers__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 인물 사진을 시원하고 꽉 채워 배치 */
  object-position: center 15%;
  padding: 0;
  will-change: transform;
  transition: transform 0.35s cubic-bezier(0.2, 0, 0.1, 1);
}

.section-speakers__photo::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  content: "";
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 0%,
    rgba(0, 0, 0, 0.08) 42%,
    rgba(0, 0, 0, 0.55) 68%,
    rgba(0, 0, 0, 0.82) 100%
  );
  transition: background 0.35s ease;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.section-speakers__card:hover .section-speakers__photo img,
.section-speakers__card.is-hovered .section-speakers__photo img {
  transform: scale(1.03);
}

/* 반투명 오버레이 바디 레이어 */
.section-speakers__body {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  flex: none;
  width: 100%;
  margin-top: 0;
  padding: 12px 14px 14px;
  background: transparent;
  border-bottom-left-radius: 13px;
  border-bottom-right-radius: 13px;
  overflow: visible;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.section-speakers__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0;
  padding: 4px 9px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.01em;
  color: #fff;
  background: var(--speaker-accent);
  border-radius: 999px;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}
.section-speakers__badge--opening {
  background: #e84545;
}
.section-speakers__badge--keynote {
  background: #45b2cf;
}
.section-speakers__badge--youth {
  background: #e21e7c;
}
.section-speakers__badge--policy {
  background: #004e9f;
}
.section-speakers__badge--industry {
  background: #f37021;
}
.section-speakers__badge--cooperation,
.section-speakers__badge--tradition {
  background: #18623b;
}

.section-speakers__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.03em;
  color: #fff;
  word-break: keep-all;
  flex-shrink: 0;
}

/* 호버 전: 직업 1줄 */
.section-speakers__role {
  margin: 3px 0 0;
  min-height: auto;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.35;
  color: rgba(255, 255, 255, 0.65);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
  width: 100%;
  word-break: keep-all;
  flex-shrink: 0;
  transition: color 0.3s ease;
}

/* 호버 후: 직업 1줄 깔끔 유지 */
.section-speakers__card:hover .section-speakers__role,
.section-speakers__card.is-hovered .section-speakers__role {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: rgba(255, 255, 255, 0.9);
}

/* 국가 정보 */
.section-speakers__country {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin: 4px 0 0;
  font-size: 14px;
  font-weight: 500;
  line-height: 1.3;
  color: rgba(255, 255, 255, 0.75);
  flex-shrink: 0;
}
.section-speakers__flag {
  display: inline-flex;
  align-items: center;
  font-size: 13px;
  line-height: 1;
}

.section-speakers__card:hover,
.section-speakers__card.is-hovered {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-bottom-color: transparent;
}

.section-speakers__card:hover .section-speakers__photo,
.section-speakers__card.is-hovered .section-speakers__photo,
.section-speakers__card:hover .section-speakers__body,
.section-speakers__card.is-hovered .section-speakers__body {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

/* 호버 상세 정보: 연사 카드와 100% 일체형 연결 레이아웃 */
.section-speakers__hover-details {
  position: absolute;
  top: 100%;
  left: -1px;
  right: -1px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  width: calc(100% + 2px);
  margin-top: 0;
  padding: 9px 12px 10px;
  background: transparent;
  border-left: 1px solid rgba(var(--speaker-accent-rgb), 0.55);
  border-right: 1px solid rgba(var(--speaker-accent-rgb), 0.55);
  border-bottom: 1px solid rgba(var(--speaker-accent-rgb), 0.55);
  border-bottom-left-radius: 13px;
  border-bottom-right-radius: 13px;
  border-top: none;
  box-shadow:
    0 20px 40px rgba(0, 0, 0, 0.68),
    0 0 16px rgba(var(--speaker-accent-rgb), 0.18);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate3d(0, -4px, 0);
  transition:
    opacity 0.25s ease,
    transform 0.25s ease,
    visibility 0.25s ease;
}

/* 마우스 이동 시 호버 해제 완화를 위한 가상 히트박스 브리지 */
.section-speakers__hover-details::after {
  content: "";
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 12px;
  pointer-events: auto;
}

/* 카드 본체와 상세 정보 사이의 구분선 제거 */
.section-speakers__hover-details::before {
  display: none;
}

.section-speakers__card:hover .section-speakers__hover-details,
.section-speakers__card.is-hovered .section-speakers__hover-details {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate3d(0, 0, 0);
}

/* 정밀 포인터에서는 기본 비율을 유지하고 호버 시 표면과 사진 영역을 함께 넓힌다. */
@media (hover: hover) and (pointer: fine) and (min-width: 769px) {
  html[lang="en"] .section-speakers .section-speakers__viewport {
    padding-bottom: 140px;
  }

  .section-speakers .section-speakers__card {
    --speaker-card-h: min(350px, calc(var(--speaker-card-w) / 0.72));
    height: var(--speaker-card-h);
    overflow: hidden;
    border-color: transparent;
    box-shadow: none;
  }

  .section-speakers .section-speakers__surface {
    height: calc(var(--speaker-card-h) + var(--speaker-details-depth));
    margin-bottom: calc(-1 * var(--speaker-details-depth));
    width: 100%;
    margin-left: 0;
    overflow: hidden;
    transform: none;
    transform-origin: center top;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
    transition:
      width 0.28s cubic-bezier(0.16, 1, 0.3, 1),
      margin-left 0.28s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .section-speakers .section-speakers__photo {
    height: var(--speaker-card-h);
    border-radius: inherit;
    transition:
      height 0.28s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.35s cubic-bezier(0.2, 0, 0.1, 1);
  }

  .section-speakers .section-speakers__photo img {
    height: 100%;
    object-fit: contain;
    object-position: center top;
    transform: none;
    transform-origin: center center;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .section-speakers .section-speakers__badge,
  .section-speakers .section-speakers__name,
  .section-speakers .section-speakers__role,
  .section-speakers .section-speakers__country {
    transform: none;
    transform-origin: left center;
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .section-speakers .section-speakers__body {
    bottom: var(--speaker-details-depth);
  }

  .section-speakers
    .section-speakers__card.is-measuring
    .section-speakers__surface {
    width: 132%;
    margin-left: -16%;
    transition: none;
  }

  .section-speakers .section-speakers__card:hover,
  .section-speakers .section-speakers__card.is-hovered,
  .section-speakers .section-speakers__card.is-center:hover,
  .section-speakers .section-speakers__card.is-center.is-hovered {
    transform: none;
    overflow: visible;
    border-color: transparent;
    box-shadow: none;
  }

  .section-speakers .section-speakers__card:hover .section-speakers__surface,
  .section-speakers
    .section-speakers__card.is-hovered
    .section-speakers__surface {
    width: 132%;
    margin-left: -16%;
    overflow: hidden;
    transform: translateY(-14px);
    border-color: rgba(var(--speaker-accent-rgb), 0.55);
    border-radius: 14px;
  }

  .section-speakers .section-speakers__card:hover .section-speakers__photo,
  .section-speakers
    .section-speakers__card.is-hovered
    .section-speakers__photo {
    height: calc(var(--speaker-card-h) + var(--speaker-details-depth));
    background: #0e1118;
  }

  .section-speakers .section-speakers__card:hover .section-speakers__photo img,
  .section-speakers
    .section-speakers__card.is-hovered
    .section-speakers__photo
    img {
    transform: none;
  }

  .section-speakers .section-speakers__hover-details {
    top: calc(100% - 8px);
    min-height: var(--speaker-details-depth);
    background: transparent;
    border: 0;
    box-shadow: none;
  }

  .section-speakers .section-speakers__card:hover .section-speakers__badge,
  .section-speakers .section-speakers__card.is-hovered .section-speakers__badge,
  .section-speakers .section-speakers__card:hover .section-speakers__name,
  .section-speakers .section-speakers__card.is-hovered .section-speakers__name,
  .section-speakers .section-speakers__card:hover .section-speakers__role,
  .section-speakers .section-speakers__card.is-hovered .section-speakers__role,
  .section-speakers .section-speakers__card:hover .section-speakers__country,
  .section-speakers
    .section-speakers__card.is-hovered
    .section-speakers__country {
    transform: scaleX(1);
  }
}

@media (hover: hover) and (pointer: fine) and (min-width: 769px) and (max-width: 1280px) {
  .section-speakers__slider-wrap .section-speakers__card:hover,
  .section-speakers__slider-wrap .section-speakers__card.is-hovered {
    transform: scale(0.95);
  }

  .section-speakers__slider-wrap .section-speakers__card.is-center:hover,
  .section-speakers__slider-wrap .section-speakers__card.is-center.is-hovered {
    transform: scale(1.03);
  }
}

@media (prefers-reduced-motion: reduce) {
  .section-speakers .section-speakers__card,
  .section-speakers .section-speakers__surface,
  .section-speakers .section-speakers__photo,
  .section-speakers .section-speakers__photo img,
  .section-speakers .section-speakers__hover-details {
    transition: none !important;
  }

  .section-speakers .section-speakers__card:hover,
  .section-speakers .section-speakers__card.is-hovered {
    transform: none !important;
  }

  .section-speakers .section-speakers__card:hover .section-speakers__photo img,
  .section-speakers
    .section-speakers__card.is-hovered
    .section-speakers__photo
    img {
    transform: none;
  }

  .section-speakers .section-speakers__card:hover .section-speakers__surface,
  .section-speakers
    .section-speakers__card.is-hovered
    .section-speakers__surface {
    transform: scaleX(1);
  }
}

.section-speakers__topic {
  flex: 0 0 auto;
  width: 100%;
  min-width: 0;
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.section-speakers__topic-label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 700;
  color: var(--speaker-accent);
}

.section-speakers__topic-label::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--speaker-accent);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.section-speakers__topic-text {
  margin: 3px 0 0;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.45;
  color: rgba(255, 255, 255, 0.9);
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.section-speakers__bio-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  width: 100%;
  margin-top: 2px;
  padding: 8px 12px;
  font-size: 14px;
  letter-spacing: -0.02em;
  font-weight: 700;
  color: var(--speaker-accent);
  background: transparent;
  border: 1px solid var(--speaker-accent);
  border-radius: 8px;
  cursor: pointer;
  transition:
    color var(--transition),
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.section-speakers__bio-btn:hover {
  color: #fff;
  background: var(--speaker-accent);
  box-shadow: 0 6px 16px rgba(var(--speaker-accent-rgb), 0.35);
}

.section-speakers__arrow {
  position: absolute !important;
  top: 150px !important; /* 가변 부모 높이(top: 50%) 대신 연사 사진 중심 고정 위치 지정 */
  margin-top: 0 !important;
  z-index: 200 !important; /* 호버 카드(z-index: 150) 상위에 절대 고정 */
  flex-shrink: 0;
  width: 56px !important;
  height: 56px !important;
  color: #fff !important;
  background: rgba(8, 10, 16, 0.92) !important;
  border: 1px solid rgba(255, 255, 255, 0.68) !important;
  border-radius: 50% !important;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.55) !important;
  transform: none !important; /* 호버/높이 변형 시 미세 이동 철저 방지 */
  transition:
    opacity 0.3s ease,
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease !important;
}
.section-speakers__arrow:hover {
  color: #101218 !important;
  background: var(--color-point) !important;
  border-color: var(--color-point) !important;
  transform: none !important;
}
.section-speakers__arrow--prev {
  left: -105px !important;
}
.section-speakers__arrow--next {
  right: -105px !important;
}

.section-speakers__arrow:disabled,
.section-speakers__arrow.is-disabled {
  opacity: 0.2 !important;
  cursor: not-allowed !important;
  pointer-events: none !important;
  transform: none !important;
}

/* 연사 도트 네비게이션 스타일 (중앙 하단 정렬 & 호버 여백 확보) */
.section-speakers__pagination {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-top: 18px;
  width: 100%;
}
.section-speakers__dot {
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.section-speakers__dot::before {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  transform: translate(-50%, -50%);
  transition:
    width 0.3s cubic-bezier(0.2, 0, 0.1, 1),
    background 0.3s ease,
    border-color 0.3s ease,
    box-shadow 0.3s ease;
}
.section-speakers__dot.is-active::before {
  width: 28px;
  border-radius: 999px;
  border-color: var(--color-point);
  background: var(--color-point);
  box-shadow: 0 0 12px rgba(var(--color-point-rgb), 0.5);
}
.section-speakers__dot:hover::before {
  border-color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.4);
}
.section-speakers__dot:focus-visible {
  outline: 2px solid var(--color-point);
  outline-offset: -4px;
  border-radius: 50%;
}
.section-speakers__dot.is-disabled {
  opacity: 0.35;
  cursor: default;
  pointer-events: none;
}

@media (max-width: 1600px) {
  .section-speakers__arrow--prev {
    left: -70px !important;
  }
  .section-speakers__arrow--next {
    right: -70px !important;
  }
}
@media (max-width: 1440px) {
  .section-speakers__arrow--prev {
    left: -45px !important;
  }
  .section-speakers__arrow--next {
    right: -45px !important;
  }
}
@media (max-width: 1200px) {
  .section-speakers__arrow--prev {
    left: -15px !important;
  }
  .section-speakers__arrow--next {
    right: -15px !important;
  }
}

@media (max-width: 992px) {
  .section-speakers__slider-wrap {
    --speakers-visible: 2.3;
    --speakers-gap: 16px;
  }
  .section-speakers__photo {
    height: 320px;
  }
  .section-speakers__photo img {
    object-position: center 20%;
  }
}

@media (max-width: 768px) {
  /* 모바일 네이티브 가로 터치 스크롤 탭 (RESPONSIVE.md 준수) */
  .section-speakers__tabs {
    display: flex !important;
    flex-wrap: nowrap !important;
    justify-content: flex-start !important;
    align-items: center !important;
    gap: 8px !important;
    overflow-x: auto !important;
    overflow-y: hidden !important;
    -webkit-overflow-scrolling: touch !important;
    scrollbar-width: none !important;
    padding: 4px 16px !important;
    margin: 0 -16px 22px !important;
    width: calc(100% + 32px) !important;
    max-width: none !important;
  }
  .section-speakers__tabs::-webkit-scrollbar {
    display: none !important;
  }
  .section-speakers__tabs::before,
  .section-speakers__tabs::after {
    display: none !important;
  }
  .section-speakers__tab {
    flex: 0 0 auto !important;
    min-width: unset !important;
    min-height: 40px !important; /* RESPONSIVE.md 최소 40px 터치 영역 지침 준수 */
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    padding: 8px 16px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    letter-spacing: -0.02em !important;
    white-space: nowrap !important;
    --speakers-gap: 12px;
  }

  .section-speakers__card {
    --speaker-card-w: clamp(230px, 72vw, 260px) !important;
    width: var(--speaker-card-w) !important;
    flex: 0 0 var(--speaker-card-w) !important;
    min-width: var(--speaker-card-w) !important;
    max-width: 260px !important;
  }

  /* 모바일 호버/클릭 시 화면 바깥 잘림 방지 (과도한 scale 억제) */
  .section-speakers__card:hover,
  .section-speakers__card.is-hovered {
    transform: translateY(-4px) !important; /* 과도한 scale(1.28) 억제 */
    z-index: 10 !important;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.7) !important;
  }

  /* 사진 영역: 꽉 채우는 인물 구도 & 반투명 오버레이 연동 */
  .section-speakers__photo {
    height: 360px !important;
  }
  .section-speakers__photo img {
    object-fit: cover !important;
    object-position: center 15% !important;
    padding: 0 !important;
    transform: none !important;
  }
  .section-speakers__card:hover .section-speakers__photo img,
  .section-speakers__card.is-hovered .section-speakers__photo img {
    transform: none !important;
  }

  /* 모바일 호버 상세 정보: 화면 잘림 100% 방지 (수직 1열 정돈) */
  .section-speakers__hover-details {
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 8px !important;
    width: 100% !important;
  }

  .section-speakers__card:hover .section-speakers__hover-details,
  .section-speakers__card.is-hovered .section-speakers__hover-details {
    max-height: 200px !important;
    margin-top: 8px !important;
    padding-top: 8px !important;
  }

  .section-speakers__topic {
    width: 100% !important;
  }

  .section-speakers__topic-label {
    font-size: 13px !important;
  }

  .section-speakers__topic-text {
    font-size: 16px !important;
    line-height: 1.45 !important;
  }

  .section-speakers__bio-btn {
    width: 100% !important;
    padding: 7px 10px !important;
    font-size: 14px !important;
    margin-top: 4px !important;
  }

  /* 모바일 화살표 제거 (터치 스와이프 전용) 및 도트 중앙 정렬 */
  /* 터치 환경에서는 클릭으로 추가 정보를 연다. */
  .section-speakers__card:hover:not(.is-hovered) {
    transform: scale(1) !important;
    z-index: 1 !important;
    border-color: rgba(255, 255, 255, 0.08) !important;
    border-bottom-left-radius: 14px;
    border-bottom-right-radius: 14px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35) !important;
  }
  .section-speakers__card:hover:not(.is-hovered) .section-speakers__role {
    -webkit-line-clamp: 1;
    color: rgba(255, 255, 255, 0.65);
  }
  .section-speakers__card:hover:not(.is-hovered)
    .section-speakers__hover-details {
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transform: translate3d(0, -4px, 0) !important;
  }

  /* 모바일 상세 영역은 카드 흐름 안에서 확장해 도트와 겹치지 않게 한다. */
  .section-speakers__hover-details,
  .section-speakers__card:hover:not(.is-hovered)
    .section-speakers__hover-details {
    position: absolute;
    top: 100%;
    left: -1px;
    right: -1px;
    width: calc(100% + 2px) !important;
    max-height: none;
    margin-top: 0 !important;
    padding: 14px 16px 16px;
    overflow: visible;
    background: transparent;
    border: 0;
    border-radius: 0 0 13px 13px;
    box-shadow: none;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
    transform: translate3d(0, -4px, 0) !important;
    transition:
      opacity 0.3s ease,
      transform 0.3s ease,
      visibility 0.3s ease;
  }
  .section-speakers__card.is-hovered .section-speakers__hover-details {
    max-height: none !important;
    margin-top: 0 !important;
    padding: 14px 16px 16px !important;
    border: 0;
    border-radius: 0 0 13px 13px;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    transform: translate3d(0, 0, 0) !important;
  }
  .section-speakers__hover-details {
    border-left: 1px solid rgba(var(--speaker-accent-rgb), 0.85);
    border-right: 1px solid rgba(var(--speaker-accent-rgb), 0.85);
    border-bottom: 1px solid rgba(var(--speaker-accent-rgb), 0.85);
    box-shadow:
      0 24px 50px rgba(0, 0, 0, 0.92),
      0 0 20px rgba(var(--speaker-accent-rgb), 0.25);
  }
  .section-speakers__card.is-hovered .section-speakers__hover-details {
    border-left: 1px solid rgba(var(--speaker-accent-rgb), 0.85);
    border-right: 1px solid rgba(var(--speaker-accent-rgb), 0.85);
    border-bottom: 1px solid rgba(var(--speaker-accent-rgb), 0.85);
  }
  .section-speakers__hover-details::before {
    display: block;
  }
  .section-speakers__topic-label {
    font-size: 13px !important;
  }
  .section-speakers__topic-text {
    font-size: 16px !important;
    line-height: 1.45 !important;
  }
  .section-speakers__bio-btn {
    align-self: stretch;
    width: 100% !important;
    min-height: 0;
    margin-top: 2px;
    padding: 8px 12px !important;
    color: var(--speaker-accent);
    background: rgba(var(--speaker-accent-rgb), 0.12);
    border: 1px solid var(--speaker-accent);
    border-radius: 8px;
  }
  .section-speakers__viewport {
    padding-bottom: 260px;
  }
  .section-speakers__arrow {
    display: none !important;
  }
  .section-speakers__pagination {
    display: flex !important;
    justify-content: center !important;
    margin-top: 18px !important;
    transition:
      opacity 0.2s ease,
      visibility 0.2s ease;
  }
  .section-speakers__slider-wrap:has(.section-speakers__card.is-hovered)
    .section-speakers__pagination {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }
}

@media (max-width: 480px) {
  .section-speakers__card {
    --speaker-card-w: 240px !important;
    width: 240px !important;
    flex: 0 0 240px !important;
    min-width: 240px !important;
  }
  .section-speakers__photo {
    height: 320px !important;
  }
  .section-speakers__photo img {
    object-position: center 10% !important;
  }
  .section-speakers__arrow {
    top: 92px !important;
  }
}

/* ===== Speaker Bio Modal Upgrade (Modern, Trendy & Premium Design - Compliant with RESPONSIVE.md) ===== */
body.is-speaker-modal-open {
  overflow: hidden;
}

.section-speakers__modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 3vh, 32px) clamp(12px, 2vw, 24px);
  animation: speakerModalFadeIn 0.3s ease forwards;
}

.section-speakers__modal[hidden] {
  display: none;
}

@keyframes speakerModalFadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.section-speakers__modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 16, 0.82);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
}

.section-speakers__modal-dialog {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(300px, 400px) minmax(320px, 1fr);
  width: min(1080px, calc(100vw - 40px));
  height: min(740px, calc(100vh - 48px));
  max-height: calc(100vh - 48px);
  color: #fff;
  background: #10121a;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  box-shadow:
    0 32px 90px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(255, 255, 255, 0.05);
  overflow: hidden;
  animation: speakerModalPopIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes speakerModalPopIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(16px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Left Profile Section */
.section-speakers__modal-profile {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  background: #151822;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
}

.section-speakers__modal-bg-photo {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center top;
  filter: blur(28px) brightness(0.38) saturate(120%);
  transform: scale(1.15);
  z-index: 0;
  transition: background-image 0.4s ease;
}

.section-speakers__modal-profile-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(16, 18, 26, 0.65) 0%,
    rgba(16, 18, 26, 0.88) 50%,
    rgba(16, 18, 26, 0.98) 100%
  );
  z-index: 1;
}

.section-speakers__modal-profile-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(28px, 3vw, 44px) clamp(24px, 2.5vw, 40px);
  overflow-y: auto;
}

.section-speakers__modal-profile-inner::-webkit-scrollbar {
  width: 4px;
}
.section-speakers__modal-profile-inner::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}

.section-speakers__modal-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(12px, 1.5vw, 20px);
  font-family: "Chakra Petch", sans-serif;
  font-size: clamp(12px, 1vw, 13px);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #dfff00;
}

.section-speakers__modal-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #dfff00;
  box-shadow: 0 0 10px rgba(223, 255, 0, 0.8);
}

.section-speakers__modal-name {
  margin: 0 0 8px;
  font-size: clamp(26px, 2.5vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: #ffffff;
  word-break: keep-all;
}

.section-speakers__modal-country {
  margin: 0 0 clamp(16px, 2vw, 24px);
  font-size: clamp(14px, 1.2vw, 16px);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-speakers__modal-country img {
  border-radius: 2px;
  vertical-align: middle;
}

.section-speakers__modal-divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.12);
  margin-bottom: clamp(16px, 2vw, 24px);
}

.section-speakers__modal-profile-body {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  justify-content: space-between;
}

.section-speakers__modal-avatar {
  width: clamp(135px, 13vw, 175px);
  height: clamp(170px, 16vw, 220px);
  margin-bottom: clamp(18px, 2vw, 26px);
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.65),
    0 0 25px rgba(223, 255, 0, 0.15);
  flex-shrink: 0;
  background: #1e222d;
}

.section-speakers__modal-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
}

.section-speakers__modal-meta {
  display: flex;
  flex-direction: column;
  gap: clamp(14px, 1.8vw, 22px);
  margin-top: auto;
}

.section-speakers__modal-meta-item dt {
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #dfff00;
}

.section-speakers__modal-meta-item dd {
  margin: 0;
  font-size: clamp(14px, 1.1vw, 15px);
  font-weight: 500;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.92);
  word-break: keep-all;
}

/* Right Content Section */
.section-speakers__modal-content {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
  padding: clamp(64px, 5.5vw, 76px) clamp(28px, 3.2vw, 48px)
    clamp(24px, 2.5vw, 36px);
  background: rgba(16, 18, 26, 0.7);
  backdrop-filter: blur(10px);
}

.section-speakers__modal-topic {
  margin-bottom: 20px;
  margin-right: clamp(0px, 2vw, 24px);
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-left: 3px solid #dfff00;
  border-radius: 0 12px 12px 0;
}

.section-speakers__modal-topic-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #dfff00;
  margin-bottom: 4px;
}

.section-speakers__modal-topic-text {
  margin: 0;
  font-size: clamp(14px, 1.2vw, 16px);
  font-weight: 600;
  line-height: 1.45;
  color: #ffffff;
}

.section-speakers__modal-detail {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  padding-right: 16px;
  margin-bottom: 0;
}

.section-speakers__modal-detail::-webkit-scrollbar {
  width: 5px;
}

.section-speakers__modal-detail::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 4px;
}

.section-speakers__modal-detail::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 4px;
}

.section-speakers__modal-detail::-webkit-scrollbar-thumb:hover {
  background: rgba(223, 255, 0, 0.6);
}

.section-speakers__modal-detail p {
  margin: 0 0 16px;
  font-size: clamp(14px, 1.15vw, 15px);
  line-height: 1.75;
  letter-spacing: -0.01em;
  color: rgba(255, 255, 255, 0.85);
  word-break: keep-all;
}

.section-speakers__modal-detail p:last-child {
  margin-bottom: 0;
}

.section-speakers__modal-close {
  position: absolute;
  top: clamp(16px, 2vw, 24px);
  right: clamp(16px, 2vw, 24px);
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; /* Touch target size rule (min 40px) */
  height: 44px;
  padding: 0;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.2, 0, 0.1, 1);
  font-size: 18px;
}

.section-speakers__modal-close:hover,
.section-speakers__modal-close:focus-visible {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.3);
  transform: rotate(90deg) scale(1.08);
  outline: none;
}

/* Tablet & Mobile Responsive Boundaries (991px / 575px) */
@media (max-width: 991px) {
  .section-speakers__modal-dialog {
    grid-template-columns: 1fr;
    height: auto;
    max-height: calc(100vh - 32px);
    width: min(720px, calc(100vw - 24px));
    overflow-y: auto;
  }

  .section-speakers__modal-profile {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    height: auto;
  }

  .section-speakers__modal-profile-inner {
    padding: 28px 56px 20px 24px;
    height: auto;
    overflow: visible;
  }

  .section-speakers__modal-profile-body {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: clamp(16px, 3.5vw, 24px);
    width: 100%;
  }

  .section-speakers__modal-avatar {
    width: clamp(125px, 30vw, 155px);
    height: clamp(160px, 40vw, 205px);
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .section-speakers__modal-meta {
    flex: 1 1 auto;
    margin-top: 0;
    gap: 12px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
  }

  .section-speakers__modal-meta-item dt {
    font-size: 12px;
    margin-bottom: 2px;
  }

  .section-speakers__modal-meta-item dd {
    font-size: clamp(13px, 3.2vw, 14px);
    line-height: 1.4;
  }

  .section-speakers__modal-content {
    padding: 24px 24px 20px;
    height: auto;
  }

  .section-speakers__modal-detail {
    max-height: 240px;
  }

  .section-speakers__modal-close {
    top: 14px;
    right: 14px;
    width: 40px;
    height: 40px;
    font-size: 16px;
  }
}

@media (max-width: 575px) {
  .section-speakers__modal {
    padding: 12px 8px;
  }

  .section-speakers__modal-dialog {
    width: calc(100vw - 16px);
    border-radius: 18px;
    max-height: calc(100vh - 24px);
  }

  .section-speakers__modal-name {
    font-size: 24px;
  }

  .section-speakers__modal-profile-inner {
    padding: 22px 18px 16px;
  }

  .section-speakers__modal-profile-body {
    gap: 14px;
  }

  .section-speakers__modal-avatar {
    width: clamp(110px, 32vw, 130px);
    height: clamp(145px, 42vw, 175px);
    border-radius: 14px;
  }

  .section-speakers__modal-content {
    padding: 18px 18px 16px;
  }

  .section-speakers__modal-detail p {
    font-size: 14px;
  }
}