@charset "UTF-8";
/* 共通設定 */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'BIZ UDMincho', 'BIZ UDゴシック', sans-serif !important;
  color: #1a1a1a;
  line-height: 1.8;
  margin: 0;
  padding: 0;
  background-color: #fff;
  letter-spacing: 0.02em;
}

h1, h2, h3 {
  font-family:'BIZ UD Gothic', 'BIZ UDMincho', sans-serif !important;
}

/* 全体の中央揃え */
.overview__container,
.timetable__container,
.event-info__container {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 20px;
}

/* 全てのタイトルは中央揃え */
.overview__title,
.timetable__title,
.event-info__title,
.organizer__label,
.speakers-detail__title {
  text-align: center;
  font-weight: 700;
  font-size: 1.8rem;
  margin-bottom: 50px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}

/* タイトルの下線 */
.overview__title::after,
.timetable__title::after,
.event-info__title::after,
.speakers-detail__title::after,
.association__title::after,
.contact__title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  width: 60px;
  height: 2px;
  background: #000;
  transform: translateX(-50%);
}

/* スクロール位置の調整 */
#speakers,
#overview,
#timetable,
#event-info {
  scroll-margin-top: 70px;
}


/* リスト項目やインライン要素用 */
html[lang="en"] li[data-lang="en"],
html[lang="en"] span[data-lang="en"],
html[lang="en"] a[data-lang="en"],
html[lang="en"] p[data-lang="en"] {
  display: list-item;
  display: inline-block;
  display: inline;
  display: block;
}

  /* 言語切り替えボタン */
  .lang-switch {
    margin-left: 20px;
    display: flex;
    align-items: center;
  }
  
  .lang-switch button {
    background: none;
    border: none;
    color: #1a1a1a;
    font-size: 0.9rem;
    cursor: pointer;
    padding: 5px 8px;
    opacity: 0.7;
    transition: opacity 0.3s;
  }
  
  .lang-switch button.active {
    font-weight: bold;
    opacity: 1;
    border-bottom: 2px solid #1a1a1a;
  }
  
  .lang-switch span {
    margin: 0 5px;
    opacity: 0.7;
  }
  
  /* 言語表示切り替え */
  [data-lang="en"] {
    display: none;
  }
  
  html[lang="en"] [data-lang="ja"] {
    display: none;
  }
  
  html[lang="en"] [data-lang="en"] {
    display: block;
  }
  
  /* リスト項目やインライン要素用 */
  html[lang="en"] li[data-lang="en"],
  html[lang="en"] span[data-lang="en"],
  html[lang="en"] a[data-lang="en"],
  html[lang="en"] p[data-lang="en"],
  html[lang="en"] div[data-lang="en"],
  html[lang="en"] h2[data-lang="en"],
  html[lang="en"] h3[data-lang="en"] {
    display: list-item;
    display: inline-block;
    display: inline;
    display: block;
  }
  
  /* 日本語表示時は英語を非表示 */
  html[lang="ja"] [data-lang="en"] {
    display: none;
  }
  
  /* 英語表示時は日本語を非表示 */
  html[lang="en"] [data-lang="ja"] {
    display: none;
  }
  
  /* 日本語表示時は日本語を表示 */
  html[lang="ja"] [data-lang="ja"] {
    display: block;
  }
  
  /* 英語表示時は英語を表示 */
  html[lang="en"] [data-lang="en"] {
    display: block;
  }
  
  /* アクセシビリティパネルのテキスト */
  .accessibility-panel[data-lang="ja"] .accessibility-panel__text {
    display: inline;
  }
  
  .accessibility-panel[data-lang="en"] .accessibility-panel__text {
    display: none;
  }
  
  html[lang="en"] .accessibility-panel[data-lang="ja"] {
    display: none;
  }
  
  html[lang="en"] .accessibility-panel[data-lang="en"] {
    display: flex;
  }
  
  html[lang="en"] .accessibility-panel[data-lang="en"] .accessibility-panel__text {
    display: inline;
  }

  /* アクセシビリティ設定パネル */
  .accessibility-panel {
    position: fixed;
    top: 80px;
    right: 20px;
    background-color: white;
    border-radius: 10px;
    width: auto;
    min-width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1001;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
  }
  
  /* 非アクティブ言語のパネルを隠す */
  .accessibility-panel[data-lang="en"] {
    display: none;
  }
  
  html[lang="en"] .accessibility-panel[data-lang="ja"] {
    display: none;
  }
  
  html[lang="en"] .accessibility-panel[data-lang="en"] {
    display: flex;
  }
  
  .accessibility-panel:hover {
    transform: scale(1.05);
  }
  
  .accessibility-icon {
    font-size: 24px;
    color: #1a1a1a;
    margin-right: 8px; /* アイコンとテキストの間隔 */
  }
  
  .accessibility-panel__text {
    font-size: 16px;
    font-weight: 500;
    color: #1a1a1a;
  }
  
  .accessibility-menu {
    position: fixed;
    top: 140px;
    right: 20px;
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    width: 280px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.2);
    z-index: 1001;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }
  
  .accessibility-menu.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
  }

  .accessibility-menu.closing {
    opacity: 0;
    transform: translateY(-10px);
  }
  
  .accessibility-menu h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 700;
  }
  
  .accessibility-option {
    margin-bottom: 15px;
  }
  
  .accessibility-option label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
  }
  
  .accessibility-option select, 
  .accessibility-option input[type="range"] {
    width: 100%;
    padding: 5px;
  }
  
  .toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
  }
  
  .toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
  }
  
  .toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 24px;
  }
  
  .toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
  }
  
  input:checked + .toggle-slider {
    background-color: #2196F3;
  }
  
  input:checked + .toggle-slider:before {
    transform: translateX(26px);
  }
  
  .option-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }
  
  /* 高コントラストモード */
  body.high-contrast {
    color: white !important;
    background-color: black !important;
  }
  
  body.high-contrast .header,
  body.high-contrast .hamburger-nav,
  body.high-contrast .contact__form-group input,
  body.high-contrast .contact__form-group select,
  body.high-contrast .contact__form-group textarea,
  body.high-contrast .accessibility-menu,
  body.high-contrast .accessibility-panel {
    background-color: black !important;
    color: white !important;
    border: 1px solid white;
  }
  
  body.high-contrast a,
  body.high-contrast h1,
  body.high-contrast h2,
  body.high-contrast h3,
  body.high-contrast p,
  body.high-contrast button,
  body.high-contrast .header__nav-link,
  body.high-contrast .hamburger-nav__list a {
    color: yellow !important;
  }
  
  body.high-contrast .hamburger__button span,
  body.high-contrast .hamburger-nav__close span,
  body.high-contrast .overview__title::after,
  body.high-contrast .speakers-detail__title::after,
  body.high-contrast .timetable__title::after,
  body.high-contrast .event-info__title::after,
  body.high-contrast .association__title::after,
  body.high-contrast .contact__title::after {
    background-color: yellow !important;
  }
  
  body.high-contrast .event-info__button,
  body.high-contrast .contact__submit-btn {
    background-color: black !important;
    color: yellow !important;
    border: 2px solid yellow !important;
  }
  
  /* ディスレクシア向けフォント */
  body.dyslexia-friendly {
    font-family: 'OpenDyslexic', 'Comic Sans MS', 'BIZ UDMincho', sans-serif !important;
    line-height: 2 !important;
    letter-spacing: 0.05em !important;
  }
  
  /* フォーカスインジケーター */
  a:focus, button:focus, input:focus, select:focus, textarea:focus {
    outline: 3px solid #2196F3 !important;
    outline-offset: 2px !important;
  }
  
  /* スキップナビゲーションリンク */
  .skip-nav {
    position: absolute;
    top: -40px;
    left: 0;
    background: #2196F3;
    color: white;
    padding: 8px 15px;
    z-index: 1002;
    transition: top 0.3s ease;
  }
  
  .skip-nav:focus {
    top: 0;
  }

  /* 音声読み上げ操作パネル */
  .screen-reader-controls {
    display: none;
    background: white;
    border-radius: 10px;
    padding: 15px;
    margin-top: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  }

  .screen-reader-controls.active {
    display: block;
  }

  .screen-reader-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
  }

  .screen-reader-button {
    padding: 8px 12px;
    background: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 5px;
    cursor: pointer;
    min-height: 44px;
    min-width: 44px;
  }

  .screen-reader-button:hover {
    background: #e0e0e0;
  }

  .screen-reader-status {
    margin-top: 10px;
    font-size: 12px;
    color: #666;
  }

  /* 点滅コンテンツの制御 */
  body.reduce-motion * {
    animation: none !important;
    transition: none !important;
  }
  
  /* 色覚特性に配慮した設定 */
  body.color-blind-friendly .event-info__button--reserve {
    background-color: #0072B2; /* 青 - ほとんどの色覚特性で識別しやすい色 */
  }
  
  body.color-blind-friendly .event-info__button--purchase {
    background-color: #D55E00; /* オレンジ - ほとんどの色覚特性で識別しやすい色 */
  }
  
  /* タッチターゲットサイズの確保 */
  @media (pointer: coarse) {
    .header__nav-link,
    .hamburger-nav__list a,
    .event-info__button,
    .contact__submit-btn,
    button,
    input[type="checkbox"],
    .accessibility-panel {
      min-height: 44px;
      min-width: 44px;
      padding: 12px;
    }
  }

  /* 読み上げ中の要素のハイライト */
  [data-reading="true"] {
    background-color: rgba(33, 150, 243, 0.2);
    border-radius: 4px;
  }

  /* アクセシビリティパネル言語制御 */
  .accessibility-panel[data-lang="en"] { display: none !important; }
  html[lang="en"] .accessibility-panel[data-lang="en"] { display: flex !important; }
  html[lang="en"] .accessibility-panel[data-lang="ja"] { display: none !important; }
  html[lang="ja"] .accessibility-panel[data-lang="ja"] { display: flex !important; }


/* ヘッダー */
.header {
  background: rgba(255, 255, 255, 0.95);
  padding: 20px;
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

.header--scrolled {
  padding: 15px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
}

.header__container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0;
  color: #000;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.header__title span {
  display:inline-block;
}

.header__nav {
  display: flex;
  gap: 30px;
}

.header__nav-link {
  color: #1a1a1a;
  text-decoration: none;
  font-size: 0.9rem;
  position: relative;
  padding-bottom: 3px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: #000;
  transition: all 0.3s ease;
}

.header__nav-link:hover::after {
  width: 100%;
}

/* ハンバーガーメニュー */
.header__hamburger {
  display: none;
  width: 30px;
  height: 20px;
  position: relative;
}

.header__hamburger:hover {
  cursor: pointer;
}

.header__hamburger span {
  position: absolute;
  width: 100%;
  height: 1px;
  background-color: #000;
  transition: all 0.3s ease;
}

.header__hamburger span:nth-child(1) {
  top: 0;
}

.header__hamburger span:nth-child(2) {
  top: 9px;
}

.header__hamburger span:nth-child(3) {
  top: 18px;
}

/* ハンバーガーメニュー展開時のナビゲーション */
.hamburger-nav {
  position: fixed;
  top: 0;
  right: -70%;
  width: 70%;
  height: 100vh;
  background-color: #fff;
  z-index: 1001;
  transform: translateX(0);
  transition: transform 0.3s ease-in-out;
  overflow-y: auto;
  box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.hamburger-nav.active {
  transform: translateX(-100%);
}

.hamburger-nav__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.hamburger-nav__title {
  color: #000;
  font-size: 1.2rem;
  margin: 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hamburger-nav__close {
  width: 30px;
  height: 30px;
  position: relative;
  cursor: pointer;
}

.hamburger-nav__close span {
  position: absolute;
  width: 100%;
  height: 1px;
  background: #000;
  top: 50%;
  left: 0;
}

.hamburger-nav__close span:nth-child(1) {
  transform: rotate(45deg);
}

.hamburger-nav__close span:nth-child(2) {
  transform: rotate(-45deg);
}

.hamburger-nav__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.hamburger-nav__list li {
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.hamburger-nav__list a {
  display: block;
  padding: 15px 20px;
  color: #1a1a1a;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hamburger-nav__list a:hover {
  background-color: rgba(0, 0, 0, 0.02);
}

.hamburger-nav__list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: #000;
  transition: width 0.3s ease;
}

.hamburger-nav__list a:hover::after {
  width: 100%;
}

/* メインコンテンツの調整 */
main {
  padding-top: 20px;
}

/* ヒーローセクション */
.hero {
  padding: 120px ;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
}

.hero__title {
  font-size: 2.8rem;
  font-weight: 700;
  margin: 0 0 30px;
  line-height: 1.4;
  letter-spacing: 0.1em;
}

.hero__subtitle {
  font-size: 1.2rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  opacity: 0.8;
  margin: 0 0 20px;
  line-height: 1.6;
}

.hero__subtitle:last-child {
  margin-bottom: 0;
  font-size: 1rem;
  opacity: 0.6;
}

/* スピーカーセクション */
#speakers {
  background: #f9f9f9;
}

.speakers__container {
  display: flex;
  justify-content: center;
  position: relative;
}

.speakers__item {
  width: 50%;
}

.speakers__versus {
  font-size: 200px;
  font-weight: 100;
  color: #fff;
  width: fit-content;
  line-height: 200px;
  width: 200px;
  text-align: center;
  transform: rotate(0deg);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  position: absolute;
  top: calc(50% - 100px);
  left: calc(50% - 100px);
}

.speakers__versus:hover {
  transform: rotate(360deg) scale(1.1);
  background: linear-gradient(135deg, #B24592, #F15F79);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.speakers__image {
  width: 100%;
  aspect-ratio: 1/1;
}

.speakers__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 主催者セクション */
.organizer {
  padding: 60px 0;
  background: #fff;
}

.organizer__container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 20px;
}

.organizer__content {
  text-align: center;
}

.organizer__label {
  margin-bottom: 20px;
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.organizer__logo {
  max-width: 300px;
  margin: 0 auto 20px;
}

.organizer__logo img {
  width: 100%;
  height: auto;
}

.organizer__name {
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.05em;
}

/* 概要セクション */
.overview {
  background-color: #fff;
  position: relative;
  padding: 0;
}

.overview__text {
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 300;
  line-height: 1.8;
}

.overview__text:first-of-type {
  font-size: 1.1rem;
  font-weight: 400;
  margin-bottom: 30px;
}

.overview__list {
  list-style: none;
  padding: 0;
  margin: 30px 0;
}

.overview__list li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 15px;
  line-height: 1.6;
}

.overview__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #1a1a1a;
}

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

/* スピーカー詳細 */
.speakers-detail {
  background: #f9f9f9;
  padding: 0;
}

.speakers-detail__container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 80px 20px;
}

.speakers-detail__content {
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.speakers-detail__item {
  display: flex;
  gap: 40px;
  background: #fff;
  padding: 40px;
  border-radius: 0;
  box-shadow: 0 5px 30px rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
}

/* 言語切り替え用のスタイル */
.speakers-detail__item[data-lang="en"] {
  display: none;
}

html[lang="en"] .speakers-detail__item[data-lang="ja"] {
  display: none;
}

html[lang="en"] .speakers-detail__item[data-lang="en"] {
  display: flex;
}

html[lang="ja"] .speakers-detail__item[data-lang="ja"] {
  display: flex;
}

html[lang="ja"] .speakers-detail__item[data-lang="en"] {
  display: none;
}

.speakers-detail__item:hover {
  transform: translateY(-5px);
}

.speakers-detail__image {
  width:100%;
  max-width: 300px;
  height: auto;
  object-fit: cover;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.speakers-detail__image img {
  width: 100%;
  transition: all 0.3s ease;
  object-fit: contain;
}

.speakers-detail__info {
  flex: 1;
}

.speakers-detail__name {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: 0.05em;
}

.speakers-detail__role {
  font-size: 1rem;
  color: #666;
  margin-bottom: 20px;
  font-weight: 400;
}

.speakers-detail__description {
  font-size: 0.9rem;
  line-height: 1.8;
  margin: 0;
}

/* タイムテーブル */
.timetable {
  background: #fff;
}

.timetable__list {
  list-style: none;
  padding: 0;
  margin: 0;
  margin-left: 20px;
}

.timetable__item {
  position: relative;
  padding: 0 0 30px 40px;
  line-height: 1.6;
  border-left: 1px solid #e0e0e0;
}

.timetable__item:last-child {
  border-left: none;
}

.timetable__item::before {
  content: '1';
  position: absolute;
  left: -10px;
  top: 0px;
  width: 20px;
  height: 20px;
  background: #1a1a1a;
  border-radius: 50%;
  color: #fff;
  line-height: 20px;
  text-align: center;
}

.timetable__item:nth-child(2)::before {
  content: '2';
}

.timetable__item:nth-child(3)::before {
  content: '3';
}

.timetable__item:nth-child(4)::before {
  content: '4';
} 

.timetable__item:nth-child(5)::before {
  content: '5';
}

.timetable__item:nth-child(6)::before {
  content: '6';
}

.timetable__item:nth-child(7)::before {
  content: '7';
}

.timetable__item:nth-child(8)::before {
  content: '8';
}

/* イベント情報 */
.event-info {
  background: #f9f9f9;
}

/* アクセス */
.access {
  background: #fff;
  padding: 0;
}

.access__container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 80px 20px;
}

.access__title {
  text-align: center;
  font-weight: 700;
  font-size: 1.8rem;
  margin-bottom: 50px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}

.access__title::after {
  content: '';
  position: absolute;
  bottom: -15px;
  left: 50%;
  width: 60px;
  height: 2px;
  background: #000;
  transform: translateX(-50%);
}

.access__info {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.access__venue {
  background: #f9f9f9;
  padding: 30px;
  border-radius: 8px;
}

.access__venue-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 15px;
  letter-spacing: 0.05em;
}

.access__address {
  font-size: 1rem;
  margin: 0 0 20px;
  line-height: 1.6;
  color: #666;
}

.access__map-link {
  display: inline-block;
  padding: 10px 20px;
  background: #1a1a1a;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.access__map-link:hover {
  background: #333;
  transform: translateY(-2px);
}

.access__transport {
  background: #f9f9f9;
  padding: 30px;
  border-radius: 8px;
}

.access__transport-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: 0.05em;
}

.access__transport-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.access__transport-list li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 15px;
  line-height: 1.6;
}

.access__transport-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #1a1a1a;
}

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

.access__transport-table {
  margin: 20px 0;
  overflow-x: auto;
}

.access__transport-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.access__transport-table th,
.access__transport-table td {
  padding: 12px 8px;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
  vertical-align: top;
}

.access__transport-table th {
  background-color: #f5f5f5;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.access__transport-table tr:hover {
  background-color: #f9f9f9;
}

.access__route-guide {
  margin-top: 30px;
  padding: 20px;
  background-color: #f0f8ff;
  border-radius: 8px;
  border-left: 4px solid #1a1a1a;
}

.access__route-guide-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 15px;
  color: #1a1a1a;
}

.access__route-guide p {
  margin: 0 0 10px;
  line-height: 1.6;
  font-size: 0.9rem;
}

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

.access__building-guide {
  margin-top: 30px;
  padding: 30px;
  background-color: #f9f9f9;
  border-radius: 8px;
}

.access__building-guide-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 20px;
  letter-spacing: 0.05em;
}

.access__building-guide-list {
  margin: 0 0 20px;
  padding-left: 20px;
}

.access__building-guide-list li {
  margin-bottom: 15px;
  line-height: 1.6;
  font-size: 0.9rem;
}

.access__building-guide-list li:last-child {
  margin-bottom: 0;
}

.access__building-guide-note {
  margin: 0;
  padding: 15px;
  background-color: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: 4px;
  font-size: 0.85rem;
  color: #856404;
  font-weight: 500;
}

.access__map {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.access__map iframe {
  width: 100%;
  height: 400px;
  border: none;
  display: block;
}

.event-info__text {
  margin-bottom: 20px;
  line-height: 1.8;
}

.event-info__ticket-types {
  display: flex;
  gap: 20px;
  margin: 30px 0;
  flex-wrap: wrap;
}

.event-info__ticket {
  background: #fff;
  border: 1px solid #e0e0e0;
  padding: 30px;
  flex: 1;
  min-width: 250px;
  transition: all 0.3s ease;
}

.event-info__ticket:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.event-info__ticket-name {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 0 0 15px;
  letter-spacing: 0.05em;
}

.event-info__ticket-price {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0 0 15px;
  color: #1a1a1a;
}

.event-info__ticket-description {
  font-size: 0.9rem;
  margin: 0;
  color: #666;
}

.event-info__notes {
  margin-top: 40px;
}

.event-info__steps {
  padding-left: 20px;
  margin-bottom: 30px;
}

.event-info__steps li {
  margin-bottom: 10px;
}

.event-info__map {
  margin: 30px 0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.event-info__map iframe {
  width: 100%;
  height: 300px;
  border: none;
  display: block;
}

.event-info__buttons {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 40px;
  justify-content: center;
}

.event-info__button {
  display: inline-block;
  padding: 15px 30px;
  background: #1a1a1a;
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  border-radius: 0;
  transition: all 0.3s ease;
  text-align: center;
  min-width: 200px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.event-info__button--reserve {
  background: #fff;
  color: #1a1a1a;
  border: 1px solid #1a1a1a;
}

.event-info__button--purchase {
  background: #1a1a1a;
  color: #fff;
}

.event-info__button:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 協会について */
.association {
  background: #fff;
  padding: 0;
}

.association__container {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 20px;
}

.association__title {
  text-align: center;
  font-weight: 700;
  font-size: 1.8rem;
  margin-bottom: 50px;
  position: relative;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.association__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 50px;
}

.association__mission,
.association__activities,
.association__vision {
  padding: 0;
}

.association__subtitle {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 20px;
  position: relative;
  display: inline-block;
  letter-spacing: 0.05em;
}

.association__subtitle::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 2px;
  background: #1a1a1a;
}

.association__text {
  margin: 0 0 30px;
  line-height: 1.8;
  font-weight: 300;
}

.association__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.association__list li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 15px;
  line-height: 1.6;
}

.association__list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: #1a1a1a;
}

/* お問い合わせ */
.contact {
  background: #f9f9f9;
  padding: 0;
}

.contact__container {
  max-width: 800px;
  margin: 0 auto;
  padding: 80px 20px;
}

.contact__title {
  text-align: center;
  font-weight: 700;
  font-size: 1.8rem;
  margin-bottom: 50px;
  position: relative;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.contact__text {
  text-align: center;
  margin-bottom: 40px;
  font-weight: 300;
  line-height: 1.8;
}

.contact__methods {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 60px;
}

.contact__method {
  flex: 1;
  text-align: center;
  padding: 30px;
  background: #fff;
  border: 1px solid #e0e0e0;
}

.contact__method-icon {
  margin-bottom: 20px;
}

.contact__method-icon img {
  width: 40px;
  height: auto;
}

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

.contact__method-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: 0.05em;
}

.contact__method-text {
  font-size: 0.9rem;
  margin: 0 0 10px;
  line-height: 1.6;
}

.contact__method-hours {
  font-size: 0.8rem;
  color: #666;
  margin: 0;
}

.contact__form {
  background: #fff;
  padding: 40px;
  border: 1px solid #e0e0e0;
}

.contact__form-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin: 0 0 30px;
  letter-spacing: 0.05em;
  text-align: center;
}

.contact__form-group {
  margin-bottom: 25px;
}

.contact__form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}

.contact__form-group input,
.contact__form-group select {
  width: 100%;
  padding: 12px;
  border: 1px solid #e0e0e0;
  background: #f9f9f9;
  font-family: inherit;
  font-size: 0.9rem;
}

.contact__form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #e0e0e0;
  background: #f9f9f9;
  font-family: inherit;
  font-size: 0.9rem;
  min-height: 150px;
  resize: vertical;
}

.required {
  color: #1a1a1a;
  font-size: 0.8rem;
  margin-left: 5px;
}

.contact__form-group--privacy {
  margin: 30px 0;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}

.checkbox-label input {
  margin-top: 5px;
  flex-shrink: 0;
}

.checkbox-text {
  font-size: 0.9rem;
  line-height: 1.6;
}

.checkbox-text a {
  color: #1a1a1a;
  text-decoration: underline;
}

.checkbox-text a:hover {
  text-decoration: none;
}

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

.contact__submit-btn {
  display: inline-block;
  padding: 15px 50px;
  background: #1a1a1a;
  color: #fff;
  border: none;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contact__submit-btn:hover {
  background-color: #0056b3;
  transform: translateY(-2px);
}

/* フォームステータス表示 */
.form-status {
  margin-top: 15px;
  padding: 10px;
  border-radius: 4px;
  font-weight: 500;
  text-align: center;
}

.form-status--sending {
  background-color: #f8f9fa;
  color: #6c757d;
}

.form-status--success {
  background-color: #d4edda;
  color: #155724;
}

.form-status--error {
  background-color: #f8d7da;
  color: #721c24;
}

/* フッター - 新しいデザイン */
.footer {
  background-color: #1f2937;
  color: white;
  padding: 60px 0 30px;
  margin-top: 80px;
}

.footer__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer__top {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 50px;
}

.footer__social {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
}

.footer__social-link {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.3rem;
  transition: transform 0.3s ease;
  text-decoration: none;
}

.footer__social-link:hover {
  transform: scale(1.1);
}

.footer__social-link--twitter {
  background-color: #1da1f2;
}

.footer__social-link--youtube {
  background-color: #ff0000;
}

.footer__social-link--discord {
  background-color: #5865f2;
}

.footer__slogan {
  font-size: 1.1rem;
  margin-bottom: 15px;
  font-weight: 500;
}

.footer__title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 15px;
}

.footer__rainbow-line {
  width: 200px;
  height: 4px;
  background: linear-gradient(90deg, #ff0000 0%, #ff8000 16.66%, #ffff00 33.33%, #00ff00 50%, #0080ff 66.66%, #8000ff 83.33%, #ff0080 100%);
  border-radius: 2px;
  margin: 0 auto 40px;
}

.footer__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  margin-bottom: 40px;
  justify-content: center;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.footer__section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-transform: uppercase;
  position: relative;
}

.footer__section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 2px;
  background: #60a5fa;
}

.footer__section-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__section-link {
  color: white;
  text-decoration: none;
  font-size: 0.95rem;
  transition: opacity 0.3s ease;
}

.footer__section-link:hover {
  opacity: 0.8;
}

/* フッター情報セクション */
.footer__info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin: 40px 0;
  padding: 40px 0;
  border-top: 1px solid #374151;
  border-bottom: 1px solid #374151;
}

.footer__info-section {
  display: flex;
  flex-direction: column;
}

.footer__info-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: white;
  position: relative;
}

.footer__info-title::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 30px;
  height: 2px;
  background: #60a5fa;
}

.footer__info-text {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #d1d5db;
  margin-bottom: 15px;
}

.footer__info-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer__info-list li {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #d1d5db;
  margin-bottom: 8px;
  position: relative;
  padding-left: 15px;
}

.footer__info-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #60a5fa;
  font-weight: bold;
}

.footer__contact-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer__contact-info p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #d1d5db;
  margin: 0;
}

.footer__contact-info strong {
  color: white;
  font-weight: 600;
}

.footer__copyright {
  text-align: center;
  font-size: 0.9rem;
  opacity: 0.8;
  border-top: 1px solid #374151;
  padding-top: 20px;
}

/* レスポンシブ対応 */
@media (max-width: 880px) {
  .header__nav {
    display: none;
  }
  
  .header__hamburger {
    display: flex;
  }
  
  .header__hamburger {
    display: block;
  }
  
  .speakers__container {
    flex-direction: column;
    gap: 20px;
  }
  
  .speakers__item {
    max-width: 300px;
    margin: 0 auto;
  }
  
  .speakers__versus {
    font-size: 80px;
    line-height: 80px;
    width: 80px;
    top: calc(50% - 40px);
    left: calc(50% - 40px);
  }
  
  .speakers-detail__item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 30px 20px;
  }
  
  .speakers-detail__image {
    width: 150px;
    margin-bottom: 20px;
  }
  
  .speakers-detail__subtitle::after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .event-info__ticket-types {
    flex-direction: column;
  }
  
  .event-info__buttons {
    flex-direction: column;
    gap: 15px;
  }
  
  .association__content {
    grid-template-columns: 1fr;
  }
  
  .contact__methods {
    flex-direction: column;
  }
  
  .access__info {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .access__transport-table {
    font-size: 0.8rem;
  }
  
  .access__transport-table th,
  .access__transport-table td {
    padding: 8px 4px;
  }
  
  .hero {
    padding: 80px 20px;
  }
  
  .hero__title {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .header__title {
    font-size: 0.9rem;
  }
  
  .header__title span:first-child {
    font-size: 0.8rem;
  }
  
  .header__title span:last-child {
    font-size: 1rem;
  }
  
  .footer__title {
    font-size: 1.5rem;
  }
  
  .footer__slogan {
    font-size: 1rem;
  }
}

/* Googleフォームのスタイリング */
.contact__form iframe {
  width: 100%;
  height: 800px;
  border: none;
  border-radius: 8px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  background-color: #fff;
  transition: all 0.3s ease;
}

/* モバイル対応 */
@media screen and (max-width: 768px) {
  .contact__form iframe {
    height: 1000px; /* モバイルでは高さを増やしてスクロールを減らす */
  }
}

/* ダークモード対応 */
@media (prefers-color-scheme: dark) {
  .contact__form iframe {
    background-color: #1a1a1a;
  }
}

/* 高コントラストモード対応 */
.high-contrast .contact__form iframe {
  border: 2px solid #000;
}

/* アクセシビリティ対応 */
.contact__form iframe:focus {
  outline: 3px solid #007bff;
  outline-offset: 2px;
}

/* フォームコンテナのスタイリング */
.contact__form {
  margin: 2rem 0;
  padding: 1rem;
  background-color: #f8f9fa;
  border-radius: 12px;
}

/* フォームタイトルのスタイリング */
.contact__form-title {
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  color: #333;
  text-align: center;
}

/* ダークモードでのフォームコンテナ */
@media (prefers-color-scheme: dark) {
  .contact__form {
    background-color: #2a2a2a;
  }
  
  .contact__form-title {
    color: #fff;
  }
}

/* 高コントラストモードでのフォームコンテナ */
.high-contrast .contact__form {
  background-color: #fff;
  border: 2px solid #000;
}

.high-contrast .contact__form-title {
  color: #000;
}