/* 配色: 日本の藍染とインドの藍（indigo）に共通する濃淡。下へ行くほど深くなり、参加登録で最も濃い「勝色」に着く */
:root{
  --kamenozoki:#DCECEF; /* 瓶覗 */
  --asagi:#B7D9E1;      /* 浅葱（淡） */
  --hanada:#2A6A8E;     /* 縹 */
  --ai:#1E4A69;         /* 藍 */
  --kon:#182D48;        /* 紺 */
  --kachi:#111A2C;      /* 勝色 */
  --paper:#F5F8F8;
  --ink:#13203A;
  --ink-soft:#34485F;
  --on-dark:#FFFFFF;
  --on-dark-soft:#C8D7E3;
  --marigold:#F2AA35;
  --latin:"Anek Latin","Helvetica Neue",Arial,sans-serif;
  --jp:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic",sans-serif;
  --gutter:clamp(16px,5vw,64px);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--jp);
  font-size:16px;
  line-height:1.9;
  font-feature-settings:"palt";
  letter-spacing:.03em;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--hanada);outline-offset:3px}
.on-dark :focus-visible{outline-color:var(--marigold)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.latin{font-family:var(--latin)}
h2,h3,.for-lead,.hero-lead{text-wrap:balance;word-break:auto-phrase} /* 見出しの末尾1文字だけが次行に落ちるのを防ぐ */
.hero-lead,.hero-cta p{text-wrap:pretty;word-break:auto-phrase} /* 段落は行幅を揃えず、語の途中では折り返さない */

/* ヘッダー */
.site-header{background:var(--paper)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:18px;padding-bottom:18px}
.brand{display:block;flex:none;text-decoration:none}
.brand img{height:30px;width:auto} /* 支給ロゴ（SVG）。上下に余白を含むので字面は約20px */
@media (min-width:760px){.brand img{height:36px}}

/* ボタン（「参加登録」は全ページで同じ見た目・同じ名前） */
.btn-register{
  display:inline-flex;align-items:center;gap:.6em;
  background:var(--marigold);color:var(--kachi);
  font-family:var(--jp);font-weight:700;text-decoration:none;
  border-radius:999px;padding:.85em 1.6em;line-height:1.3;
  transition:transform .15s ease, box-shadow .15s ease;
}
.btn-register:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(17,26,44,.18)}
.btn-register svg{flex:none}
.btn-register--small{font-size:14px;padding:.6em 1.2em}

/* ヒーロー */
.hero{padding:clamp(28px,6vw,72px) 0 clamp(36px,6vw,64px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr);grid-template-areas:"head" "facts" "body";gap:28px 48px}
.hero-head{grid-area:head}
.hero-body{grid-area:body}
.eyebrow{
  margin:0 0 18px;font-size:14px;font-weight:700;color:var(--hanada);letter-spacing:.04em;
}
.eyebrow .latin{font-size:1.18em;font-weight:600;letter-spacing:.02em}
.hero-title{margin:0;color:var(--kon);line-height:.9}
.hero-title .t-main{
  display:block;font-family:var(--latin);font-weight:700;font-stretch:75%;
  font-size:clamp(64px,12.5vw,176px);letter-spacing:-.005em;
}
.hero-title .t-main span{display:block}
.hero-title .t-sub{
  display:block;margin-top:.9em;font-family:var(--latin);font-weight:400;font-stretch:108%;
  font-size:clamp(19px,2.3vw,30px);line-height:1.25;color:var(--ai);
}
.hero-lead{margin:0;max-width:34em;font-size:clamp(16px,1.5vw,18px);font-weight:500;line-height:1.95}
.hero-cta{margin-top:28px;display:flex;flex-wrap:wrap;align-items:center;gap:14px 20px}
.hero-cta p{margin:0;font-size:13px;line-height:1.7;color:var(--ink-soft);max-width:26em}
.hero-cta p strong{display:block;color:var(--ink);font-size:15px}

.facts{
  margin:0;background:var(--kon);color:var(--on-dark);border-radius:4px;
  padding:clamp(22px,2.4vw,32px);align-self:start;grid-area:facts;
}
.facts-date{font-family:var(--latin);font-weight:700;font-stretch:75%;font-size:clamp(76px,8vw,112px);line-height:.85;letter-spacing:-.01em}
.facts-year{font-family:var(--latin);font-weight:500;font-stretch:110%;font-size:15px;letter-spacing:.14em;color:var(--on-dark-soft);margin-top:10px}
.facts dl{margin:22px 0 0;display:grid;gap:14px}
.facts dl div{border-top:1px solid rgba(255,255,255,.22);padding-top:12px}
.facts dt{font-size:12px;color:var(--on-dark-soft);letter-spacing:.08em;line-height:1.4}
.facts dd{margin:4px 0 0;font-weight:700;line-height:1.55}
.facts dd .latin{font-size:1.2em;font-weight:600}
.facts dd small{display:block;font-weight:500;font-size:13px;color:var(--on-dark-soft)}
/* 会場名 → Googleマップ（別タブ）。下線と矢印でリンクと分かるようにする */
.venue-link{display:inline-block;color:inherit;text-decoration:underline;text-decoration-color:rgba(255,255,255,.5);text-decoration-thickness:1px;text-underline-offset:4px}
.venue-link:hover{text-decoration-color:var(--marigold)}
.venue-link .nowrap{white-space:nowrap} /* 矢印だけが次の行に落ちないよう最後の語とまとめる */
.venue-link svg{display:inline-block;margin-left:.35em;vertical-align:-1px;opacity:.85}

@media (min-width:900px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 340px;grid-template-areas:"head facts" "body facts"}
}
@media (max-width:899.98px){
  .facts{display:grid;grid-template-columns:auto minmax(0,1fr);column-gap:16px;align-items:end}
  .facts-date{font-size:64px}
  .facts-year{margin:0 0 4px}
  .facts dl{grid-column:1 / -1;margin-top:18px;gap:10px}
  .facts dl div{display:grid;grid-template-columns:3.2em minmax(0,1fr);gap:12px;align-items:baseline;padding-top:10px}
  .facts dd{margin:0}
}

/* 藍の帯 = ページの地図。各セクションの色を浅い順に並べ、押すとその節へ移動する */
.dye-map{display:grid;grid-template-columns:repeat(6,1fr)}
.dye-map a{
  grid-column:span 2;
  display:flex;flex-direction:column;justify-content:flex-end;gap:2px;
  min-height:84px;padding:12px clamp(12px,1.6vw,20px);
  text-decoration:none;font-weight:700;font-size:14px;line-height:1.4;
  transition:padding-bottom .2s ease;
}
.dye-map a:nth-child(n+4){grid-column:span 3} /* スマホは上段3つ・下段2つで穴を作らない */
.dye-map a .latin{font-weight:500;font-size:12px;letter-spacing:.1em;opacity:.85}
.dye-map a:hover{padding-bottom:22px}
.dye-map a:focus-visible{outline-offset:-4px}
.dye-map .d1{background:var(--kamenozoki);color:var(--ink)}
.dye-map .d2{background:var(--asagi);color:var(--ink)}
.dye-map .d4{background:var(--ai);color:var(--on-dark)}
.dye-map .d5{background:var(--kon);color:var(--on-dark)}
.dye-map .d6{background:var(--kachi);color:var(--on-dark)}
.dye-map .d4:focus-visible,.dye-map .d5:focus-visible,.dye-map .d6:focus-visible{outline-color:var(--marigold)}
@media (min-width:760px){
  .dye-map{grid-template-columns:repeat(5,1fr)}
  .dye-map a,.dye-map a:nth-child(n+4){grid-column:auto;min-height:112px}
}

/* セクション共通 */
.section{padding:clamp(56px,8vw,112px) 0}
.section-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:24px 56px}
.section-head{margin:0}
.section-head .latin{display:block;font-size:13px;font-weight:500;letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px;color:var(--hanada)}
.section-head h2{margin:0;font-size:clamp(24px,2.6vw,32px);font-weight:900;line-height:1.4;letter-spacing:.02em;font-feature-settings:"palt"}
.section p{margin:0 0 1.2em}
.section p:last-child{margin-bottom:0}
@media (min-width:900px){
  .section-grid{grid-template-columns:260px minmax(0,1fr)}
}

.on-dark{color:var(--on-dark)}
.on-dark .section-head .latin{color:var(--on-dark-soft)}

.s-about{background:var(--kamenozoki)}
.s-program{background:var(--asagi)}
.s-for{background:var(--ai)}
.s-details{background:var(--kon)}
.s-register{background:var(--kachi)}
.s-program .section-head .latin{color:var(--ai)}

/* 概要 */
.about-body{display:grid;gap:36px}
.about-body h3{margin:0 0 10px;font-size:18px;font-weight:700;line-height:1.6}
.about-logo{width:100%;max-width:420px;margin:0 0 22px;border-radius:4px;background:#14284B} /* 支給のイベントロゴ（navy_case2-a_soft）。縮小のみで切り抜かない */
.about-body .theme{
  border-left:4px solid var(--hanada);padding-left:20px;
}
.about-body .theme h3 .latin{font-size:1.15em;font-weight:600}
@media (min-width:900px){
  .about-body{grid-template-columns:1fr 1fr;gap:48px}
}

/* プログラム: 開始時刻を大きく、終了時刻をその下に小さく */
.program-date{font-weight:700;font-size:15px;margin:0 0 16px}
.agenda{margin:0;padding:0;list-style:none;border-top:1px solid rgba(24,45,72,.28)}
.agenda > li{
  display:grid;grid-template-columns:3.6em minmax(0,1fr);gap:4px 16px;align-items:baseline;
  padding:16px 0;border-bottom:1px solid rgba(24,45,72,.28);
}
.agenda-time{font-family:var(--latin);font-weight:600;font-size:19px;line-height:1.4;color:var(--kon);font-variant-numeric:tabular-nums}
.agenda-time small{display:block;font-size:13px;font-weight:500;line-height:1.3;color:var(--ink-soft)}
.agenda h3{margin:0;font-size:17px;font-weight:700;line-height:1.6}
.agenda h3 .latin{font-size:1.12em;font-weight:600}
.speakers{grid-column:1 / -1;display:grid;gap:12px;margin:14px 0 4px;padding:0;list-style:none}
.speaker{
  display:grid;grid-template-columns:112px minmax(0,1fr);gap:14px 16px;align-items:center;
  background:var(--paper);border-radius:4px;padding:18px;
}
.speaker img{width:112px;height:112px;object-fit:cover;border-radius:3px;background:var(--kamenozoki)}
.speaker .speaker-name{margin:0;font-size:20px;font-weight:700;line-height:1.35;color:var(--kon)}
.speaker .speaker-name.latin{font-size:23px;font-weight:600;letter-spacing:.01em}
.speaker .speaker-role{margin:4px 0 0;font-size:14px;font-weight:700;line-height:1.6;color:var(--ink-soft);word-break:auto-phrase}
.speaker-bio{grid-column:1 / -1}
.speaker-bio p{margin:0 0 .8em;font-size:14.5px;line-height:1.85;color:var(--ink-soft)}
.speaker-bio p:last-child{margin-bottom:0}
@media (min-width:760px){
  .agenda > li{grid-template-columns:4.4em minmax(0,1fr);gap:4px 20px}
  .speakers{grid-column:2}
  .speaker{grid-template-columns:140px minmax(0,1fr);gap:6px 22px;align-items:start;padding:22px}
  .speaker img{width:140px;height:140px;grid-row:1 / span 2}
  .speaker-id{padding-top:2px}
  .speaker-bio{grid-column:2}
}
.meeting-note{
  margin-top:28px;border:2px solid var(--ai);border-radius:4px;padding:18px 24px;
  display:grid;gap:4px;
}
.meeting-note strong{font-size:16px}
.meeting-note p{font-size:15px;color:var(--ink-soft)}

/* 対象 */
.for-lead{font-size:clamp(18px,2vw,22px);font-weight:700;line-height:1.7}
.audiences{display:grid;gap:0;margin:32px 0 0;padding:0;list-style:none;border-top:1px solid rgba(255,255,255,.25)}
.audiences li{padding:22px 0;border-bottom:1px solid rgba(255,255,255,.25)}
.audiences h3{margin:0 0 6px;font-size:20px;font-weight:900;font-feature-settings:"palt"}
.audiences p{color:var(--on-dark-soft);font-size:15px;line-height:1.85}
@media (min-width:900px){
  .audiences{grid-template-columns:repeat(3,1fr);gap:0 32px;border-top:0}
  .audiences li{border-top:1px solid rgba(255,255,255,.25);border-bottom:0}
}

/* 開催概要 */
.details{margin:0}
.details div{display:grid;gap:4px;padding:18px 0;border-top:1px solid rgba(255,255,255,.2)}
.details div:last-child{border-bottom:1px solid rgba(255,255,255,.2)}
.details dt{font-size:13px;font-weight:700;color:var(--on-dark-soft);letter-spacing:.06em}
.details dd{margin:0;line-height:1.8}
.details dd small{display:block;color:var(--on-dark-soft);font-size:14px}
.details .latin{font-size:1.1em;font-weight:500}
.details a{text-underline-offset:3px}
@media (min-width:760px){
  .details div{grid-template-columns:140px minmax(0,1fr);gap:24px}
}

/* 参加登録 */
.s-register{text-align:left}
.register-box{max-width:760px}
.register-box .register-when{margin:0 0 10px;color:var(--marigold);font-weight:700;font-size:15px}
.register-box h2{margin:0 0 20px;font-size:clamp(34px,5vw,56px);font-weight:900;line-height:1.3;font-feature-settings:"palt"}
.register-box p{color:var(--on-dark-soft)}
.register-box .register-deadline{color:var(--on-dark);font-weight:700;font-size:17px}
.register-box .register-deadline strong{color:var(--marigold);font-size:1.3em;margin-left:.4em}
.register-box .btn-register{font-size:18px;margin:12px 0 28px}
.register-box .contact{font-size:15px}
.register-box .contact a{color:var(--on-dark);text-underline-offset:3px}

.site-footer{background:#0B1220;color:var(--on-dark-soft);font-size:13px;padding:28px 0}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}

/* 読み込み時: 題字だけ下から立ち上げる。最終状態は素のレイアウトと同じ */
@media (prefers-reduced-motion:no-preference){
  .hero-title .t-main span{animation:rise .7s cubic-bezier(.2,.7,.2,1) both}
  .hero-title .t-main span:nth-child(2){animation-delay:.08s}
  .hero-title .t-main span:nth-child(3){animation-delay:.16s}
  .dye-map a{animation:dip .6s ease both}
  .dye-map a:nth-child(2){animation-delay:.05s}
  .dye-map a:nth-child(3){animation-delay:.1s}
  .dye-map a:nth-child(4){animation-delay:.15s}
  .dye-map a:nth-child(5){animation-delay:.2s}
}
@keyframes rise{from{opacity:0;transform:translateY(.25em)}to{opacity:1;transform:none}}
@keyframes dip{from{opacity:0;transform:translateY(-12px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .btn-register,.dye-map a{transition:none}
}

/* 言語切り替え（日本語版 ⇄ 英語版） */
.header-actions{display:flex;align-items:center;gap:12px}
.lang-switch{font-size:13px;font-weight:700;color:var(--hanada);text-decoration:underline;text-underline-offset:3px;white-space:nowrap}
.lang-switch:hover{color:var(--kon)}
@media (max-width:759.98px){.brand img{height:26px}}

/* 英語版: 本文も欧文書体にし、和文用の字間・プロポーショナル詰めを外す */
html[lang="en"] body{font-family:var(--latin);letter-spacing:0;font-feature-settings:normal;line-height:1.65}
html[lang="en"] .hero-lead{line-height:1.6}
html[lang="en"] .section-head h2,html[lang="en"] .register-box h2{font-weight:700;letter-spacing:0}
html[lang="en"] .agenda h3{font-weight:600}
html[lang="en"] .speaker .speaker-name{font-weight:600}
html[lang="en"] .audiences h3{font-weight:700}