@charset "UTF-8";

/* ============================================
   HONORS YOUTH — ユース会 2026.11 LP
   ライト基調（honors.jp トーン準拠）
   - ベース: 白 × 薄ブルーグレー(#eef3f7)
   - テキスト: ダークネイビー(#17263f)
   - アクセント: ティール(#45988b) ※公式CTA色
   - ダーク面は最終CTA+フッターの1箇所のみ
   - 見出し・本文: Noto Sans JP ／ 数字: Montserrat
============================================ */

:root {
  --paper: #ffffff;
  --mist: #eef3f7;
  --mist-deep: #e2eaf1;
  --ink: #17263f;
  --ink-sub: rgba(23, 38, 63, .68);
  --navy-deep: #101b2e;
  --teal: #45988b;
  --teal-deep: #3a8579;
  --teal-pale: rgba(69, 152, 139, .12);
  --clay: #b0503c;
  --line: rgba(23, 38, 63, .14);
  --line-soft: rgba(23, 38, 63, .08);
  --on-dark: #f4f7fa;
  --on-dark-sub: rgba(244, 247, 250, .72);
  --sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  --en: "Montserrat", sans-serif;
  --pad: clamp(24px, 5vw, 48px);
  --header-h: 68px;
  --r-card: 22px;
  --r-small: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); }

body {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  line-height: 2;
  letter-spacing: .04em;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
sup { font-size: .55em; vertical-align: super; }
em { font-style: normal; }

:focus-visible { outline: 2px solid var(--teal); outline-offset: 3px; border-radius: 4px; }

.container {
  width: min(1080px, 100% - var(--pad) * 2);
  margin-inline: auto;
}
.container--narrow { width: min(880px, 100% - var(--pad) * 2); }
.center { text-align: center; }

.pc { display: inline; }
.sp { display: none; }

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 48px;
  border-radius: 999px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .1em;
  transition: background .3s ease, transform .3s ease, box-shadow .3s ease;
}
.btn--fill {
  background: var(--teal);
  color: #fff;
  box-shadow: 0 8px 22px rgba(69, 152, 139, .32);
}
.btn--fill:hover { background: var(--teal-deep); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(69, 152, 139, .4); }
.btn--large { min-height: 64px; padding: 0 62px; font-size: 17px; }

/* ---------- ヘッダー ---------- */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  transition: background .3s ease, box-shadow .3s ease;
}
.header.is-scrolled {
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 20px rgba(23, 38, 63, .08);
}
.header__inner {
  width: min(1200px, 100% - var(--pad) * 2);
  margin-inline: auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
}
.header__brand { display: inline-flex; align-items: center; }
.header__brand img { height: 42px; width: auto; }
.header__nav {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .06em;
  color: var(--ink-sub);
}
.header__nav a { transition: color .25s ease; }
.header__nav a:hover { color: var(--teal-deep); }
.header__cta {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 24px;
  border-radius: 999px;
  background: var(--teal);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .06em;
  white-space: nowrap;
  transition: background .25s ease;
}
.header__cta:hover { background: var(--teal-deep); }

/* ---------- ヒーロー ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(ellipse 56% 44% at 88% 4%, rgba(69, 152, 139, .14), transparent 70%),
    radial-gradient(ellipse 70% 55% at -6% 100%, rgba(226, 234, 241, .9), transparent 70%),
    var(--paper);
  padding: calc(var(--header-h) + clamp(56px, 9vw, 104px)) 0 clamp(48px, 6vw, 72px);
  overflow: hidden;
}
.hero__inner { position: relative; }

.hero__kicker {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--teal-deep);
}
.hero__kicker-num { font-family: var(--en); font-weight: 700; font-size: 17px; letter-spacing: .12em; }
.hero__kicker-by {
  margin-left: 8px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
  font-family: var(--en);
  font-weight: 600;
  font-size: 12.5px;
  letter-spacing: .24em;
  color: var(--ink-sub);
}

.hero__title {
  margin-top: clamp(24px, 3.4vw, 40px);
  font-weight: 900;
  letter-spacing: .05em;
}
.hero__title span {
  display: block;
  font-size: clamp(20px, 2.8vw, 32px);
  line-height: 1.9;
}
.hero__title em {
  display: block;
  margin-top: clamp(6px, 1vw, 12px);
  font-size: clamp(30px, 4.8vw, 58px);
  line-height: 1.5;
  color: var(--ink);
}

.hero__lead {
  margin-top: clamp(18px, 2.6vw, 28px);
  max-width: 46em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 2.15;
  color: var(--ink-sub);
}

.hero__actions {
  margin-top: clamp(26px, 3.4vw, 38px);
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.hero__note { font-size: 14px; line-height: 1.9; color: var(--ink-sub); }

.hero__facts {
  margin-top: clamp(34px, 4.6vw, 52px);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
}
.hero__facts > div {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 36px 2px 0;
}
.hero__facts > div + div { padding-left: 36px; border-left: 1px solid var(--line-soft); }
.hero__facts dt {
  flex-shrink: 0;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--teal-deep);
}
.hero__facts dd { font-size: 15.5px; }
.hero__facts dd strong { font-weight: 700; }

/* ヒーローのロード演出（1回だけ） */
.hero__kicker, .hero__title, .hero__lead, .hero__actions, .hero__facts {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .7s ease, transform .7s ease;
}
.is-loaded .hero__kicker { opacity: 1; transform: none; }
.is-loaded .hero__title { opacity: 1; transform: none; transition-delay: .1s; }
.is-loaded .hero__lead { opacity: 1; transform: none; transition-delay: .22s; }
.is-loaded .hero__actions { opacity: 1; transform: none; transition-delay: .34s; }
.is-loaded .hero__facts { opacity: 1; transform: none; transition-delay: .46s; }
@media (prefers-reduced-motion: reduce) {
  .hero__kicker, .hero__title, .hero__lead, .hero__actions, .hero__facts {
    opacity: 1; transform: none; transition: none;
  }
  html { scroll-behavior: auto; }
  .btn, .float-cta { transition: none !important; }
}

/* ---------- セクション共通 ---------- */
.section { padding: clamp(60px, 8.5vw, 110px) 0; }
.section--mist { background: var(--mist); }

.sec-head { margin-bottom: clamp(32px, 4.4vw, 48px); }
.sec-title {
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.7;
  letter-spacing: .05em;
}
.sec-title + .audience,
.sec-title + .takeaways,
.sec-title + .timeline,
.sec-title + .outline,
.sec-title + .faq { margin-top: clamp(32px, 4.4vw, 48px); }
.sec-lead { margin-top: 14px; font-size: 15.5px; color: var(--ink-sub); }

.catch {
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.85;
  letter-spacing: .05em;
}

/* ---------- 対象（ヒーロー直下） ---------- */
.audience {
  background: var(--paper);
  border-radius: var(--r-card);
  padding: clamp(26px, 3.4vw, 44px) clamp(26px, 4vw, 56px);
}
.audience__list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: clamp(32px, 4.6vw, 64px);
}
.audience__list li {
  position: relative;
  padding: 15px 0 15px 32px;
  font-size: 16px;
  line-height: 2;
  border-bottom: 1px solid var(--line-soft);
}
.audience__list li:nth-last-child(-n+2) { border-bottom: none; }
.audience__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 1.55em;
  width: 12px;
  height: 7px;
  border-left: 2.5px solid var(--teal);
  border-bottom: 2.5px solid var(--teal);
  transform: rotate(-45deg);
}

/* ---------- 課題 ---------- */
.issues {
  margin-top: clamp(32px, 4.4vw, 48px);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
}
.issue { border-top: 2px solid var(--ink); padding-top: 20px; }
.issue h3 {
  font-size: clamp(17px, 1.9vw, 20px);
  font-weight: 700;
  line-height: 1.8;
  letter-spacing: .04em;
}
.issue p { margin-top: 12px; font-size: 15px; line-height: 2.05; color: var(--ink-sub); }

/* ---------- 立ち位置 ---------- */
.stance {
  background: var(--paper);
  border-radius: var(--r-card);
  border-left: 6px solid var(--teal);
  padding: clamp(32px, 4.6vw, 56px) clamp(26px, 4.6vw, 60px);
}
.stance__label { font-size: 14px; font-weight: 700; letter-spacing: .14em; color: var(--teal-deep); }
.stance__heading {
  margin-top: 14px;
  font-weight: 900;
  font-size: clamp(20px, 2.7vw, 30px);
  line-height: 1.85;
  letter-spacing: .05em;
}
.stance__heading span { display: inline-block; }
.stance__sub { margin-top: 12px; font-size: clamp(14.5px, 1.7vw, 16.5px); line-height: 2.05; color: var(--ink-sub); }
.stance__points {
  margin-top: clamp(26px, 3.4vw, 38px);
  padding-top: clamp(22px, 2.8vw, 30px);
  border-top: 1px solid var(--line-soft);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
}
.stance__point h3 {
  position: relative;
  padding-left: 20px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.8;
}
.stance__point h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: .64em;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--teal);
}
.stance__point p { margin-top: 8px; padding-left: 20px; font-size: 14.5px; line-height: 2; color: var(--ink-sub); }

/* ---------- 持ち帰れるもの ---------- */
.takeaways {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
}
.takeaway { border-top: 2px solid var(--teal); padding-top: 20px; }
.takeaway h3 { font-size: 18px; font-weight: 700; letter-spacing: .05em; }
.takeaway p { margin-top: 12px; font-size: 15px; line-height: 2.05; color: var(--ink-sub); }

/* ---------- 登壇企業 ---------- */
.speakers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.speaker-card {
  background: var(--paper);
  border-radius: var(--r-card);
  padding: clamp(26px, 3vw, 38px);
  display: flex;
  flex-direction: column;
}
.speaker-card__name {
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 20px);
  line-height: 1.7;
  letter-spacing: .03em;
}
.speaker-card__theme { margin-top: 8px; font-size: 14.5px; font-weight: 700; color: var(--teal-deep); }
.speaker-card__desc {
  margin-top: 10px;
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-sub);
  flex-grow: 1;
}
.speaker-card__person {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  letter-spacing: .04em;
}

/* ---------- 論点Q&A ---------- */
.qa { border-top: 1px solid var(--line); }
.qa__item { padding: clamp(22px, 3vw, 32px) 0; border-bottom: 1px solid var(--line); }
.qa__item dt {
  display: flex;
  align-items: baseline;
  gap: 18px;
  font-weight: 700;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.8;
  letter-spacing: .04em;
}
.qa__num {
  flex-shrink: 0;
  font-family: var(--en);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: .04em;
  color: var(--teal);
}
.qa__item dd { margin-top: 6px; padding-left: 58px; font-size: 15px; line-height: 2.05; color: var(--ink-sub); }

/* ---------- 当日のながれ ---------- */
.timeline { list-style: none; position: relative; }
.timeline::before {
  content: "";
  position: absolute;
  left: 82px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: #d3dee8;
}
.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 42px;
  padding: 15px 0;
}
.timeline li::before {
  content: "";
  position: absolute;
  left: 77px;
  top: 2em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--teal);
}
.timeline time {
  font-family: var(--en);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .04em;
  color: var(--ink);
  line-height: 2.1;
}
.timeline h3 { font-size: 17px; font-weight: 700; letter-spacing: .05em; line-height: 2.1; }
.timeline p { margin-top: 2px; font-size: 14.5px; line-height: 1.95; color: var(--ink-sub); }

/* ---------- 開催概要 ---------- */
.outline { border-top: 1px solid var(--line); }
.outline > div {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 20px;
  padding: 21px 4px;
  border-bottom: 1px solid var(--line);
}
.outline dt { font-weight: 700; font-size: 15.5px; letter-spacing: .06em; }
.outline dd { font-size: 15.5px; line-height: 2; }
.outline dd small { font-size: .9em; color: var(--ink-sub); }
.outline dd a { color: var(--teal-deep); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- FAQ ---------- */
.faq {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.faq-card {
  background: var(--paper);
  border-radius: var(--r-card);
  padding: clamp(24px, 3vw, 36px) clamp(24px, 3vw, 34px);
}
.faq-card h3 { font-size: 16.5px; font-weight: 700; line-height: 1.85; letter-spacing: .03em; }
.faq-card p { margin-top: 8px; font-size: 15px; line-height: 2.05; color: var(--ink-sub); }

/* ---------- 最終CTA ---------- */
.cta-final {
  background: linear-gradient(180deg, var(--ink) 0%, var(--navy-deep) 100%);
  color: var(--on-dark);
  padding: clamp(68px, 9.5vw, 120px) 0;
}
.cta-final__title {
  font-weight: 900;
  font-size: clamp(24px, 3.5vw, 38px);
  line-height: 1.8;
  letter-spacing: .05em;
}
.cta-final__date { margin: 16px 0 32px; font-size: 15.5px; letter-spacing: .06em; color: var(--on-dark-sub); }
.cta-final__note { margin-top: 18px; font-size: 13.5px; color: var(--on-dark-sub); }

/* ---------- フッター ---------- */
.footer {
  background: var(--navy-deep);
  color: var(--on-dark-sub);
  border-top: 1px solid rgba(244, 247, 250, .1);
  padding: 44px 0 88px;
}
.footer__inner { text-align: center; }
.footer__brand {
  font-family: var(--en);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .24em;
  color: var(--on-dark);
}
.footer__brand em { color: var(--teal); }
.footer__org { margin-top: 14px; font-size: 14px; letter-spacing: .05em; }
.footer__notes { margin-top: 12px; font-size: 12.5px; line-height: 2; opacity: .78; }
.footer__copy { margin-top: 20px; font-family: var(--en); font-weight: 600; font-size: 11px; letter-spacing: .16em; opacity: .55; }

/* ---------- サイトへの戻り先 ---------- */
.footer__links { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 13px; }
.footer__links a { color: inherit; text-decoration: underline; text-underline-offset: 4px; opacity: .9; }
.footer__links a:hover { opacity: 1; }
.footer__links { justify-content: center; }

/* ---------- 固定CTA ---------- */
.float-cta { position: fixed; z-index: 90; opacity: 0; pointer-events: none; transition: opacity .35s ease; }
.float-cta.is-visible { opacity: 1; pointer-events: auto; }
.float-cta__pc {
  position: fixed;
  right: 26px;
  bottom: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  padding: 15px 32px;
  border-radius: 999px;
  background: var(--teal);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .08em;
  box-shadow: 0 12px 30px rgba(23, 38, 63, .28);
  transition: background .3s ease, transform .3s ease;
}
.float-cta__pc:hover { background: var(--teal-deep); transform: translateY(-3px); }
.float-cta__pc span { font-family: var(--en); font-weight: 600; font-size: 11px; letter-spacing: .14em; opacity: .85; }
.float-cta__sp { display: none; }

/* ============================================
   レスポンシブ
============================================ */
@media (max-width: 900px) {
  .issues, .takeaways, .stance__points { grid-template-columns: 1fr 1fr; }
  .issues .issue:last-child, .takeaways .takeaway:last-child, .stance__points .stance__point:last-child { grid-column: 1 / -1; }
  .speakers { grid-template-columns: 1fr; }
  .header__nav { display: none; }
  .header__cta { margin-left: auto; }
}

@media (max-width: 720px) {
  body { font-size: 14.5px; }
  .pc { display: none; }
  .sp { display: inline; }

  .btn { font-size: 15px; }

  .header__nav { display: none; }
  .header__cta { margin-left: auto; padding: 0 18px; font-size: 12.5px; }
  .header__brand img { height: 34px; }

  .hero__kicker { flex-wrap: wrap; row-gap: 2px; font-size: 14px; }
  .hero__title span { font-size: clamp(17px, 5vw, 20px); }
  .hero__title em { font-size: clamp(27px, 8vw, 32px); line-height: 1.6; }
  .hero__lead { font-size: 14.5px; }
  .hero__actions { flex-direction: column; align-items: stretch; gap: 14px; }
  .hero__actions .btn { width: 100%; }
  .hero__note { text-align: center; font-size: 12.5px; }
  .hero__facts { flex-direction: column; }
  .hero__facts > div { padding: 12px 0 2px; }
  .hero__facts > div + div { padding-left: 0; border-left: none; border-top: 1px solid var(--line-soft); }
  .hero__facts dd { font-size: 14.5px; }

  .sec-lead { font-size: 14px; }

  .audience { padding: 8px 22px; }
  .audience__list { grid-template-columns: 1fr; column-gap: 0; }
  .audience__list li { font-size: 15px; padding: 13px 0 13px 28px; }
  .audience__list li:nth-last-child(-n+2) { border-bottom: 1px solid var(--line-soft); }
  .audience__list li:last-child { border-bottom: none; }

  .issues, .takeaways, .stance__points, .faq { grid-template-columns: 1fr; }
  .issue h3 br { display: none; }
  .issue p, .takeaway p, .faq-card p, .qa__item dd { font-size: 14px; }

  .stance { border-left-width: 5px; }
  .stance__heading { font-size: clamp(18px, 5vw, 21px); }
  .stance__point h3 { font-size: 15.5px; }
  .stance__point p { font-size: 13.5px; }

  .speaker-card__theme, .speaker-card__desc, .speaker-card__person { font-size: 13.5px; }

  .qa__item dt { flex-direction: column; gap: 2px; }
  .qa__item dd { padding-left: 0; }

  .timeline::before { left: 58px; }
  .timeline li { grid-template-columns: 46px 1fr; gap: 30px; padding: 12px 0; }
  .timeline li::before { left: 53px; }
  .timeline time { font-size: 16px; }
  .timeline h3 { font-size: 15.5px; }
  .timeline p { font-size: 13.5px; }

  .outline > div { grid-template-columns: 1fr; gap: 2px; padding: 16px 2px; }
  .outline dt { color: var(--teal-deep); font-size: 13.5px; }
  .outline dd { font-size: 14.5px; }

  .faq-card h3 { font-size: 15.5px; }

  .footer { padding-bottom: 128px; }

  .float-cta__pc { display: none; }
  .float-cta__sp {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(10px);
    box-shadow: 0 -1px 18px rgba(23, 38, 63, .12);
  }
  .float-cta__sp .btn { width: 100%; min-height: 52px; }
}