:root {
  --ink: #263a3d;
  --sub: #5a7174;
  --muted: #6d8184;
  --line: #dce9e7;
  --teal: #1d8c8f;
  --teal-dark: #11696c;
  --teal-soft: #e7f5f4;
  --mint: #f1faf8;
  --cream: #fff8ec;
  --white: #ffffff;
  --sand: #f3eadb;
  --shadow: 0 18px 48px rgba(25, 74, 78, .12);
  --radius: 22px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.78;
  background: #fffdfa;
}
a { color: inherit; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font: inherit; }
.skip-link { position: absolute; left: -999px; top: 8px; padding: 8px 12px; background: var(--ink); color: white; z-index: 100; }
.skip-link:focus { left: 8px; }
.container { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; }
.section-pad { padding: 76px 0; }
.section-muted { background: linear-gradient(180deg, var(--mint), #fff); }
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,253,250,.92); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(220,233,231,.8); }
.header-inner { width: min(var(--max), calc(100% - 32px)); margin-inline: auto; min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; font-weight: 800; letter-spacing: .02em; }
.brand img { width: 58px; height: 58px; object-fit: contain; }
.brand small { display: block; color: var(--sub); font-weight: 600; font-size: 12px; letter-spacing: .04em; }
.nav-toggle { display: none; border: 1px solid var(--line); background: white; border-radius: 999px; padding: 8px 14px; }
.nav-list { list-style: none; display: flex; align-items: center; gap: 6px; padding: 0; margin: 0; }
.nav-list a { display: inline-flex; text-decoration: none; padding: 10px 13px; border-radius: 999px; color: var(--sub); font-weight: 700; font-size: 14px; }
.nav-list a:hover, .nav-list a[aria-current="page"] { background: var(--teal-soft); color: var(--teal-dark); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 46px; padding: 12px 20px; border-radius: 999px; border: 1px solid transparent; text-decoration: none; font-weight: 800; transition: transform .15s ease, box-shadow .15s ease; }
.button:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.button.primary { background: var(--teal); color: white; }
.button.ghost { color: var(--teal-dark); border-color: var(--line); background: white; }
.button.light { background: white; color: var(--teal-dark); }
.text-link { color: var(--teal-dark); font-weight: 800; text-decoration: none; border-bottom: 2px solid var(--teal-soft); }
.hero { background: radial-gradient(circle at 15% 0%, var(--teal-soft), transparent 34%), linear-gradient(140deg, #fff, var(--cream)); }
.hero-grid { display: grid; grid-template-columns: 1fr .95fr; align-items: center; gap: 42px; }
.eyebrow { margin: 0 0 10px; color: var(--teal-dark); font-weight: 900; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }
h1, h2, h3 { line-height: 1.3; margin: 0 0 16px; }
h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: .02em; }
h2 { font-size: clamp(26px, 3vw, 38px); }
h3 { font-size: 21px; }
p { margin: 0 0 18px; }
.lead { color: var(--sub); font-size: clamp(17px, 2vw, 20px); max-width: 650px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.trust-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.trust-list li { background: white; border: 1px solid var(--line); color: var(--sub); border-radius: 999px; padding: 7px 12px; font-size: 13px; font-weight: 700; }
.card-soft { background: rgba(255,255,255,.78); border: 1px solid var(--line); border-radius: 34px; box-shadow: var(--shadow); padding: 14px; }
.two-column { display: grid; grid-template-columns: .8fr 1.2fr; gap: 42px; align-items: center; }
.align-start { align-items: start; }
.section-heading { max-width: 780px; margin-bottom: 34px; }
.section-heading.compact { margin-bottom: 22px; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card, .event-card, .archive-card, .member-card, .qa-item, .contact-card, .contact-form-card, .notice-box { background: white; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; box-shadow: 0 12px 26px rgba(25,74,78,.06); }
.icon-dot { display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: 16px; background: var(--teal-soft); color: var(--teal-dark); font-weight: 900; margin-bottom: 14px; }
.event-highlight .event-card { border-left: 6px solid var(--teal); }
.meta-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 18px 0; }
.meta-item { padding: 12px 14px; border: 1px solid var(--line); border-radius: 16px; background: #fbfffe; }
.meta-item b { display: block; color: var(--teal-dark); font-size: 13px; }
.news-list { display: grid; gap: 12px; }
.news-item { display: grid; grid-template-columns: 130px 1fr; gap: 18px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.news-date { color: var(--teal-dark); font-weight: 900; }
.mini-cards { display: grid; gap: 12px; }
.mini-card { background: white; border: 1px solid var(--line); border-radius: 18px; padding: 16px 18px; }
.cta-band { background: linear-gradient(120deg, var(--teal-dark), var(--teal)); color: white; padding: 56px 0; }
.cta-content { display: flex; justify-content: space-between; gap: 30px; align-items: center; }
.cta-content p { color: rgba(255,255,255,.88); }
.page-hero { padding: 70px 0 54px; background: linear-gradient(135deg, var(--teal-soft), var(--cream)); border-bottom: 1px solid var(--line); }
.page-hero p { max-width: 760px; color: var(--sub); }
.event-detail-grid { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 28px; align-items: start; }
.sidebar-box { background: var(--mint); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: sticky; top: 98px; }
.badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 5px 10px; background: var(--teal-soft); color: var(--teal-dark); font-size: 12px; font-weight: 900; }
.link-list { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 10px; }
.link-list a { display: flex; justify-content: space-between; gap: 14px; align-items: center; padding: 13px 15px; background: white; border: 1px solid var(--line); border-radius: 14px; text-decoration: none; font-weight: 800; color: var(--teal-dark); }
.prose { max-width: 760px; }
.prose ul { padding-left: 1.3em; }
.filter-bar { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; padding: 16px; background: var(--mint); border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 24px; }
.filter-bar input, .filter-bar select { border: 1px solid var(--line); border-radius: 999px; padding: 12px 14px; background: white; min-height: 46px; }
.filter-bar input { flex: 1 1 280px; }
.archive-list { display: grid; gap: 16px; }
.archive-card { display: grid; grid-template-columns: 120px 1fr; gap: 20px; }
.archive-number { color: var(--teal-dark); font-weight: 900; font-size: 24px; }
.member-groups { display: grid; gap: 36px; }
.member-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.member-card h3 { margin-bottom: 6px; }
.member-card p { color: var(--sub); margin-bottom: 6px; }
.qa-list { display: grid; gap: 14px; }
.qa-item { padding: 0; overflow: hidden; }
.qa-question { width: 100%; text-align: left; border: 0; background: white; padding: 20px 22px; cursor: pointer; display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; color: var(--ink); }
.qa-question strong { color: var(--teal-dark); }
.qa-answer { padding: 0 22px 22px; display: none; color: var(--sub); }
.qa-item.open .qa-answer { display: block; }
.qa-mark { width: 30px; height: 30px; border-radius: 50%; background: var(--teal-soft); color: var(--teal-dark); display: inline-flex; align-items: center; justify-content: center; font-weight: 900; }
.notice-box { margin-bottom: 18px; background: #fffdf7; }
.check-list { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 10px; }
.check-list li { padding-left: 28px; position: relative; }
.check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--teal-dark); font-weight: 900; }
.site-footer { background: #263a3d; color: rgba(255,255,255,.86); padding: 42px 0; }
.footer-grid { width: min(var(--max), calc(100% - 40px)); margin-inline: auto; display: grid; grid-template-columns: 1.1fr .9fr; gap: 30px; }
.footer-nav { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.footer-nav a { color: rgba(255,255,255,.86); text-decoration: none; }
.footer-note { color: rgba(255,255,255,.64); font-size: 13px; }
.to-top { position: fixed; right: 18px; bottom: 18px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: white; color: var(--teal-dark); box-shadow: var(--shadow); cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .2s ease; }
.to-top.visible { opacity: 1; pointer-events: auto; }
.empty { padding: 28px; border: 1px dashed var(--line); border-radius: var(--radius); color: var(--sub); background: white; }
@media (max-width: 880px) {
  .hero-grid, .two-column, .event-detail-grid, .footer-grid { grid-template-columns: 1fr; }
  .feature-grid, .member-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .site-nav { position: absolute; left: 16px; right: 16px; top: 78px; background: white; border: 1px solid var(--line); border-radius: 20px; box-shadow: var(--shadow); padding: 10px; display: none; }
  .site-nav.open { display: block; }
  .nav-list { display: grid; gap: 4px; }
  .nav-list a { width: 100%; }
  .archive-card { grid-template-columns: 1fr; }
  .cta-content { flex-direction: column; align-items: start; }
  .meta-list { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section-pad { padding: 54px 0; }
  .header-inner { min-height: 70px; }
  .brand img { width: 44px; height: 44px; }
  .brand span { font-size: 14px; }
  .brand small { display: none; }
  .news-item { grid-template-columns: 1fr; gap: 2px; }
  .feature-card, .event-card, .archive-card, .member-card, .qa-item, .contact-card, .contact-form-card, .notice-box { padding: 20px; }
}

/* 次回開催ページ：案内チラシPDF */
.flyer-box {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 18px;
  align-items: start;
  margin: 24px 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, #ffffff, var(--cream));
}
.flyer-box h3 { margin-bottom: 6px; }
.flyer-box p { color: var(--sub); }
.flyer-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--teal-soft);
  color: var(--teal-dark);
  font-weight: 900;
  letter-spacing: .06em;
  border: 1px solid var(--line);
}
.sidebar-flyer-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin: 14px 0;
  padding: 14px 16px;
  border-radius: 16px;
  background: var(--teal);
  color: white;
  text-decoration: none;
  font-weight: 900;
}
.sidebar-flyer-link span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,.18);
  font-size: 12px;
}
@media (max-width: 520px) {
  .flyer-box { grid-template-columns: 1fr; }
}


/* Facebookリンク */
.facebook-nav-link {
  color: #1877f2 !important;
  border: 1px solid rgba(24,119,242,.18);
  background: rgba(24,119,242,.06);
}
.facebook-nav-link:hover {
  background: rgba(24,119,242,.12) !important;
  color: #145dbd !important;
}
.footer-sns a {
  display: inline-flex;
  margin: 4px 0 14px;
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
  border-bottom: 1px solid rgba(255,255,255,.35);
}
.contact-sns-box {
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}


/* 公式ロゴ表示 */
.official-hero-logo {
  width: min(100%, 420px);
  margin: 0 auto;
  padding: 12px;
}
.hero-visual.card-soft {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}
@media (max-width: 520px) {
  .official-hero-logo { width: min(100%, 300px); padding: 6px; }
  .hero-visual.card-soft { min-height: 240px; }
}

/* 過去開催ページ：チラシリンク */
.archive-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}
.archive-link-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal-dark);
  border: 1px solid var(--line);
  text-decoration: none;
  font-weight: 900;
  font-size: 14px;
}
.archive-link-button:hover {
  background: var(--teal);
  color: white;
}
.archive-link-button span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  color: var(--teal-dark);
  font-size: 11px;
}

/* 次回開催ページ：申し込みフォーム */
.application-box {
  margin: 28px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfffe;
}
.application-groups {
  display: grid;
  gap: 18px;
  margin-top: 18px;
}
.application-group {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: white;
  overflow: hidden;
}
.application-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 18px;
  background: var(--teal-soft);
}
.application-group-head h4 {
  margin: 0;
  color: var(--teal-dark);
  font-size: 20px;
}
.application-items {
  display: grid;
  gap: 0;
}
.application-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: start;
  padding: 18px;
  border-top: 1px solid var(--line);
}
.application-item:first-child {
  border-top: 0;
}
.application-item.is-closed {
  background: #f8f8f6;
}
.application-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}
.application-title-row h5 {
  margin: 0;
  font-size: 18px;
  color: var(--ink);
}
.application-status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 9px;
  background: var(--teal);
  color: white;
  font-size: 12px;
  font-weight: 900;
}
.application-status.closed {
  background: #8a8f8f;
}
.application-deadline {
  margin: 8px 0 0;
  color: var(--teal-dark);
}
.application-notes {
  margin: 12px 0 0;
  padding-left: 1.2em;
  color: var(--sub);
}
.application-related {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 12px;
}
.application-action {
  min-width: 190px;
  display: flex;
  justify-content: flex-end;
}
.application-button.disabled {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 999px;
  background: #e4e7e7;
  color: #667174;
  font-weight: 900;
  border: 1px solid #d4dddd;
}
.parking-note {
  margin: 18px 0 0;
  padding: 13px 15px;
  border-radius: 14px;
  background: #fff8ec;
  border: 1px solid var(--sand);
  color: var(--ink);
  font-weight: 800;
}
@media (max-width: 640px) {
  .application-item {
    grid-template-columns: 1fr;
  }
  .application-action {
    min-width: 0;
    justify-content: flex-start;
  }
}

/* 申し込み受付開始前の表示 */
.application-open-notice {
  margin: 10px 0 18px;
  padding: 12px 15px;
  border-radius: 14px;
  background: #fff8ec;
  border: 1px solid var(--sand);
  color: var(--teal-dark);
  font-weight: 900;
}
.application-item.is-before-open {
  background: #fbfbf8;
}
.application-status.before-open {
  background: #b98b2d;
}
.application-button.before-open {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border-radius: 999px;
  background: #f2eadb;
  color: #785d21;
  font-weight: 900;
  border: 1px solid #e5d5b7;
  cursor: not-allowed;
}
.sidebar-disabled-link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 13px 15px;
  background: #f8f8f6;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--sub);
  font-weight: 800;
}
.sidebar-disabled-link small {
  color: #785d21;
  font-weight: 900;
}