:root {
  --green: #2c7a4e;
  --green-dark: #1f5d3d;
  --green-soft: #e7f2eb;
  --gold: #e3a12d;
  --gold-soft: #fff4dc;
  --sky: #2e8db4;
  --sky-soft: #e8f3f7;
  --ink: #1f2a22;
  --muted: #5d6c62;
  --line: #dfe5dc;
  --paper: #fffdf7;
  --white: #fff;
  --radius: 8px;
  --shadow: 0 8px 24px rgba(31, 93, 61, .08);
  --max: 1120px;
  --pixel: "DotGothic16", "Hiragino Sans", "Noto Sans JP", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 92px; }
body {
  margin: 0;
  color: var(--ink);
  background: #fafaf5;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  line-height: 1.75;
}
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }

.notice {
  background: #fff7e3;
  border-bottom: 1px solid #efdca9;
  color: #6a4c0a;
  font-size: 13px;
  padding: 7px 16px;
  text-align: center;
}
.notice a { color: #775200; font-weight: 700; text-decoration: underline; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,250,.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 900;
}
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand small {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.nav-links a {
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 800;
  padding: 7px 11px;
}
.nav-links a.active,
.nav-links a:hover {
  background: var(--green-soft);
  border-color: #cfe4d5;
  color: var(--green-dark);
  text-decoration: none;
}
.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 8px;
  font-size: 22px;
  padding: 6px 10px;
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
section { padding: 64px 0; }
.hero { padding: 42px 0 56px; overflow: hidden; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .92fr);
  gap: 32px;
  align-items: center;
}
.hero-copy h1,
.page-title {
  font-size: clamp(34px, 6vw, 72px);
  line-height: 1.08;
  margin: 0 0 18px;
  letter-spacing: 0;
}
.page-kids .hero-copy h1,
.page-kids .page-title {
  font-family: var(--pixel);
}
.hero-copy p {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 18px;
  max-width: 680px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 0; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 10px 16px;
  font-weight: 900;
  color: var(--ink);
  background: var(--white);
  box-shadow: 0 2px 0 rgba(31,42,34,.05);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn.primary { background: var(--green); border-color: var(--green); color: var(--white); }
.btn.gold { background: var(--gold); border-color: var(--gold); color: #2b210a; }
.hero-media {
  border-radius: 14px;
  overflow: hidden;
  background: var(--green-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.hero-media img { width: 100%; height: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-top: 26px; }
.stat {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 12px;
}
.stat b { display: block; color: var(--green); font-size: 26px; line-height: 1; }
.stat span { color: var(--muted); font-size: 13px; font-weight: 700; }

.page-kids .hero,
.page-institutional .hero {
  padding: 34px 0 58px;
}
.page-kids .hero-grid,
.page-institutional .hero-grid {
  display: block;
}
.page-kids .hero-media,
.page-institutional .hero-media {
  width: min(100%, 1040px);
  margin: 0 auto 30px;
  border-radius: 16px;
  border: 3px solid #172017;
  box-shadow: 0 14px 0 rgba(23, 32, 23, .13), var(--shadow);
}
.page-kids .hero-media img,
.page-institutional .hero-media img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.page-kids .hero-copy,
.page-institutional .hero-copy {
  width: min(100%, 1040px);
  margin: 0 auto;
  text-align: left;
}
.page-kids .hero-copy h1,
.page-institutional .hero-copy h1 {
  font-size: clamp(38px, 6.2vw, 66px);
  line-height: 1.08;
}
.page-kids .hero-copy p,
.page-institutional .hero-copy p {
  margin-inline: 0;
}
.page-kids .hero-actions,
.page-institutional .hero-actions {
  justify-content: flex-start;
}

.jump-section {
  padding: 0 0 46px;
}
.jump-buttons {
  width: min(100%, 1040px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.jump-button {
  display: block;
  min-height: 112px;
  border: 2px solid var(--line);
  border-radius: 14px;
  background: var(--white);
  padding: 20px 22px;
  color: var(--ink);
  box-shadow: var(--shadow);
}
.jump-button:hover {
  text-decoration: none;
  transform: translateY(-2px);
}
.jump-button span {
  display: inline-flex;
  align-items: center;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 900;
  margin-bottom: 8px;
}
.jump-button strong {
  display: block;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.25;
}
.jump-button.parents {
  background: linear-gradient(135deg, #ffffff, #edf6ef);
  border-color: #cfe4d5;
}
.jump-button.operators {
  background: linear-gradient(135deg, #ffffff, #fff3d7);
  border-color: #efd799;
}
.jump-button.operators span {
  color: #7b5409;
}

.band { background: var(--white); border-block: 1px solid var(--line); }
.section-head { margin: 0 0 24px; }
.section-label {
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.25;
  letter-spacing: 0;
}
.lead {
  color: var(--muted);
  font-size: 17px;
  max-width: 820px;
  margin: 12px 0 0;
}
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; align-items: stretch; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 1px 0 rgba(31,42,34,.03);
}
.card h3 { margin: 0 0 8px; font-size: 22px; line-height: 1.35; }
.card p { margin: 0; color: var(--muted); }
.card ul { margin: 12px 0 0; padding-left: 1.2em; color: var(--muted); }
.card li { margin: 4px 0; }
.callout {
  background: var(--gold-soft);
  border: 1px solid #efdbad;
  border-left: 7px solid var(--gold);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-top: 18px;
}
.callout strong { color: #7b5409; }

.diagnostic-banner {
  width: min(410px, 100%);
  margin: 0 auto 12px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  cursor: pointer;
}
.diagnostic-heading {
  text-align: center;
  font-size: clamp(22px, 4vw, 32px);
  margin: 8px 0 20px;
}
.page-kids .diagnostic-heading { font-family: var(--pixel); }
.quiz-card {
  max-width: 820px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
}
.quiz-card[hidden] { display: none; }
.quiz-progress { height: 9px; background: #edf1e8; border-radius: 999px; overflow: hidden; margin-bottom: 14px; }
.quiz-progress-bar { height: 100%; background: var(--green); border-radius: 999px; }
.quiz-step-label { color: var(--muted); font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.quiz-question h3 { font-size: 24px; margin: 8px 0 14px; }
.quiz-options { display: grid; gap: 10px; }
.quiz-option, .quiz-back {
  border: 1px solid var(--line);
  background: #fbfaf4;
  border-radius: var(--radius);
  padding: 14px;
  text-align: left;
  color: var(--ink);
  font-size: 16px;
  font-weight: 800;
  cursor: pointer;
}
.quiz-option:hover { border-color: var(--green); background: var(--green-soft); }
.quiz-back { margin-top: 12px; color: var(--muted); background: transparent; }
.result-cards { display: grid; gap: 12px; margin: 18px 0; }
.result-card {
  position: relative;
  min-height: 128px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 126px 16px 16px;
  background: #fbfaf4;
}
.result-card.gold { border-color: #e6be64; background: #fff8e8; }
.result-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  width: 86px;
  height: 86px;
  object-fit: contain;
  transform: translateY(-50%);
}
.result-rank { color: var(--green); font-size: 13px; font-weight: 900; }
.result-name { font-size: 20px; font-weight: 900; }
.result-meta, .result-reason, .result-detail { color: var(--muted); font-size: 13px; }
.result-evidence {
  display: grid;
  gap: 6px;
  margin: 10px 0;
}
.result-evidence-row {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 12px;
}
.result-evidence-row strong { display: block; color: var(--green-dark); margin-bottom: 2px; }

.filter-panel {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px;
  margin: 0 0 18px;
}
.search-input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 14px 18px;
  font-size: 16px;
  background: #fbfaf4;
}
.filter-row { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 12px; }
.filter-label { color: var(--muted); font-size: 13px; font-weight: 900; }
.filter-chip {
  border: 1px solid var(--line);
  background: var(--white);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 800;
  cursor: pointer;
}
.filter-chip.active { background: var(--green); border-color: var(--green); color: var(--white); }
.results-count { color: var(--muted); font-weight: 800; margin: 10px 2px; }
.club-grid { display: grid; gap: 28px; }
.club-category-section {
  padding: 0;
}
.club-category-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
}
.club-category-head img {
  width: 54px;
  height: 54px;
  object-fit: contain;
}
.club-category-head h3 {
  margin: 0;
  font-size: clamp(25px, 3vw, 34px);
  line-height: 1.15;
  font-family: var(--pixel);
}
.club-category-head span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}
.club-category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.club-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
}
.club-summary {
  position: relative;
  list-style: none;
  min-height: 126px;
  padding: 15px 104px 15px 15px;
  cursor: pointer;
}
.club-summary::-webkit-details-marker { display: none; }
.club-summary h4 { margin: 6px 0 2px; font-size: 18px; line-height: 1.32; }
.club-sub { color: var(--muted); font-size: 14px; font-weight: 800; }
.club-badges { display: flex; gap: 6px; flex-wrap: wrap; }
.badge {
  display: inline-flex;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  padding: 3px 8px;
}
.badge-category { background: var(--sky-soft); color: #1f6681; }
.badge-fkatsu { background: var(--green-soft); color: var(--green-dark); }
.badge-pending { background: var(--gold-soft); color: #7b5409; }
.club-icon {
  position: absolute;
  right: 16px;
  top: 50%;
  width: 74px;
  height: 74px;
  object-fit: contain;
  transform: translateY(-50%);
}
.club-details {
  border-top: 1px solid var(--line);
  padding: 14px 17px 17px;
}
.club-details dl { display: grid; grid-template-columns: 80px 1fr; gap: 7px 10px; margin: 0; }
.club-details dt { color: var(--green-dark); font-weight: 900; }
.club-details dd { margin: 0; color: var(--muted); }
.club-contact-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.club-contact-row a {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 13px;
  font-weight: 900;
  background: #fbfaf4;
}

.page-institutional {
  background: #f7f8f5;
  color: #1d2a24;
}
.page-institutional .hero-copy h1 {
  font-weight: 800;
}
.page-institutional .hero-copy p {
  font-size: 17px;
  color: #4e5d54;
}
.page-institutional .band {
  background: #fff;
}
.page-institutional .section-label {
  color: #516159;
  font-size: 12px;
  letter-spacing: .08em;
}
.page-institutional h2 {
  font-size: clamp(27px, 3.4vw, 38px);
  font-weight: 800;
}
.page-institutional .lead {
  color: #53635a;
}
.page-institutional .card,
.page-institutional .comparison,
.page-institutional .timeline-item,
.page-institutional .filter-panel,
.page-institutional .quiz-card {
  border-color: #d8dfd7;
  box-shadow: none;
}
.page-institutional .card {
  background: #fff;
}
.page-institutional .card h3 {
  font-size: 20px;
  font-weight: 800;
}
.page-institutional .callout {
  background: #f7f4eb;
  border-color: #e2d9c5;
  border-left-color: #8f743d;
}
.page-institutional .callout strong {
  color: #5f4a21;
}
.page-institutional .comparison th {
  background: #eef1ec;
}
.page-institutional .route-number {
  background: #236546;
}

.comparison { width: 100%; border-collapse: separate; border-spacing: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--white); }
.comparison th, .comparison td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.comparison tr:last-child th, .comparison tr:last-child td { border-bottom: 0; }
.comparison th { background: #f0eee6; width: 22%; }
.timeline { display: grid; gap: 12px; }
.timeline-item {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 16px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.timeline-date { color: var(--green-dark); font-weight: 900; }
.timeline-title { font-size: 18px; font-weight: 900; }
.timeline-desc { color: var(--muted); }
.route-number {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: var(--green);
  color: var(--white);
  font-weight: 900;
  margin-bottom: 10px;
}

.footer {
  background: #16251c;
  color: #dce8df;
  padding: 36px 0;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 20px; }
.footer h4 { color: var(--white); margin: 0 0 8px; }
.footer p, .footer li { color: #aebfb4; font-size: 14px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer a { color: #dce8df; }

@media (max-width: 860px) {
  .menu-btn { display: block; }
  .nav { align-items: flex-start; }
  .nav-links {
    display: none;
    position: absolute;
    left: 12px;
    right: 12px;
    top: 72px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 10px;
    box-shadow: var(--shadow);
  }
  .nav-links.open { display: grid; }
  .nav-links a { display: block; }
  .hero-grid, .split, .cards, .footer-grid { grid-template-columns: 1fr; }
  .jump-buttons { grid-template-columns: 1fr; }
  .club-category-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .hero { padding-top: 30px; }
  section { padding: 46px 0; }
  .club-summary { padding-right: 100px; }
  .club-icon { width: 72px; height: 72px; }
}

@media (max-width: 520px) {
  .container { padding: 0 14px; }
  .notice { font-size: 12px; }
  .brand small { display: none; }
  .hero-copy h1, .page-title { font-size: 35px; }
  .hero-copy p, .lead { font-size: 15px; }
  .hero-actions .btn { width: 100%; }
  .stat-row { grid-template-columns: 1fr 1fr; gap: 8px; }
  .stat b { font-size: 22px; }
  .quiz-card { padding: 16px; }
  .result-card { padding: 14px; }
  .result-icon { position: static; width: 76px; height: 76px; transform: none; margin: 0 0 8px auto; }
  .club-summary { padding: 15px; }
  .club-category-grid { grid-template-columns: 1fr; }
  .club-icon { position: static; transform: none; width: 70px; height: 70px; margin-left: auto; }
  .club-details dl { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; }
  .comparison { display: block; overflow-x: auto; }
}