/* WAGON サイト共通デザイントークン・コンポーネント */

:root{
  --sky: #4EC6EC;
  --nav-bg: #FCFEFF;
  --page-bg: #F3F8FA;
  --ink: #1B3A56;
  --ink-soft: #46586B;
  --line: #E6EEF2;
  --accent: #1EA7DE;
  --grad-a: #1878C4;
  --grad-b: #17C7C2;
  --line-green: #06C755;
  --card-bg: #FFFFFF;
  --card-shadow: 0 2px 6px rgba(20,60,90,0.07), 0 12px 28px -14px rgba(20,60,90,0.22);
  --marker: #FFF176;
  --free-border: #17C7C2;
}

*{ box-sizing:border-box; }

body{
  margin:0;
  background:var(--page-bg);
  color:var(--ink);
  font-family:"Hiragino Sans","Yu Gothic","Segoe UI",Meiryo,sans-serif;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

/* ヘッダー */
header.topnav{
  background:var(--nav-bg);
  border-bottom:1px solid var(--line);
  padding:14px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:16px;
  position:sticky;
  top:0;
  z-index:40;
}
.logo-block{ line-height:1.3; }
.logo-eyebrow{ font-size:10.5px; color:var(--accent); font-weight:700; }
.logo-word{ font-size:22px; font-weight:800; color:var(--ink); letter-spacing:.03em; }
nav.primary-nav{ display:flex; align-items:center; gap:26px; flex-wrap:wrap; }
nav.primary-nav a{ font-size:14px; font-weight:700; color:var(--ink-soft); }
nav.primary-nav a[aria-current="page"]{ color:var(--accent); }
.school-btn{
  border:1.5px solid var(--ink); border-radius:999px; padding:9px 18px; font-size:13px; font-weight:700; color:var(--ink);
  white-space:nowrap;
}
@media (max-width:760px){
  header.topnav{ flex-direction:column; align-items:flex-start; gap:12px; }
  nav.primary-nav{ gap:16px; font-size:13px; width:100%; }
  .school-btn{ align-self:flex-start; }
}

/* 見出しの黄色マーカー装飾 */
.hl{
  background:linear-gradient(120deg, var(--marker), var(--marker));
  padding:3px 14px; border-radius:20px 6px 20px 6px; display:inline-block;
  font-size:22px; font-weight:800; color:var(--ink); box-decoration-break:clone;
}

/* ボタン */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  background:linear-gradient(100deg, var(--grad-a), var(--grad-b));
  color:#fff; font-weight:800; font-size:15px; border-radius:999px; padding:14px 26px;
  box-shadow: 0 8px 18px -8px rgba(23,199,194,.5);
}
.btn.line{ background:var(--line-green); box-shadow:0 8px 18px -8px rgba(6,199,85,.45); }
.btn.lg{ font-size:16.5px; padding:16px 30px; }

/* カード */
.card{
  background:var(--card-bg); border-radius:16px; padding:22px 24px; box-shadow:var(--card-shadow);
}

/* メインコンテナ */
main.page{ max-width:860px; margin:0 auto; padding:40px 24px 72px; }
main.page h1{ font-size:clamp(22px,3vw,30px); margin:0 0 24px; }
main.page section{ margin-bottom:44px; }
main.page section h2{ font-size:18px; margin:0 0 12px; }
main.page p{ font-size:14.5px; color:var(--ink-soft); max-width:64ch; }

/* フッター */
footer.site-footer{
  background:#0F2438; color:#C9D6E2; padding:48px 32px 32px; font-size:13px;
}
footer.site-footer .foot-grid{
  max-width:1080px; margin:0 auto; display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:32px;
}
@media (max-width:700px){ footer.site-footer .foot-grid{ grid-template-columns:1fr; } }
footer.site-footer h3{ color:#fff; font-size:13px; margin:0 0 12px; }
footer.site-footer ul{ list-style:none; margin:0; padding:0; display:grid; gap:8px; }
footer.site-footer a{ color:#C9D6E2; }
footer.site-footer a:hover{ color:#fff; }
footer.site-footer .copyright{ max-width:1080px; margin:32px auto 0; padding-top:20px; border-top:1px solid #1E3A52; font-size:11.5px; color:#7E93A6; }

/* FAQ */
details.faq{ background:var(--card-bg); border:1px solid var(--line); border-radius:12px; margin-bottom:10px; box-shadow:var(--card-shadow); overflow:hidden; }
details.faq summary{ cursor:pointer; padding:16px 20px; font-weight:700; font-size:14.5px; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:12px; color:var(--ink); }
details.faq summary::-webkit-details-marker{ display:none; }
details.faq summary::after{ content:"+"; color:var(--accent); font-size:18px; flex-shrink:0; }
details.faq[open] summary::after{ content:"\2212"; }
details.faq .faq-a{ padding:0 20px 18px; color:var(--ink-soft); font-size:14px; margin:0; }

/* testimonials & instructor trust card */
.voice-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:20px; }
@media (max-width:760px){ .voice-grid{ grid-template-columns:1fr; } }
.voice-tile{ background:var(--card-bg); border-radius:14px; padding:18px 20px; box-shadow:var(--card-shadow); border:1px solid var(--line); }
.voice-tile p{ font-size:13.5px; color:var(--ink); line-height:1.8; margin:0; }
.voice-tile .src{ margin-top:10px; font-size:11.5px; color:var(--accent); font-weight:700; }

.instructor-card{ display:flex; gap:18px; align-items:flex-start; }
.instructor-avatar{
  flex-shrink:0; width:64px; height:64px; border-radius:50%;
  background:linear-gradient(135deg, var(--grad-a), var(--grad-b));
  color:#fff; display:flex; align-items:center; justify-content:center;
  font-size:22px; font-weight:800; font-family:"Hiragino Mincho ProN","Yu Mincho",serif;
}
.instructor-name{ font-weight:800; font-size:15px; color:var(--ink); }
.instructor-role{ font-size:12px; color:var(--accent); font-weight:700; margin-top:2px; }
.instructor-bio{ font-size:13.5px; color:var(--ink-soft); margin-top:10px; line-height:1.8; }

.reply-note{ display:flex; align-items:center; gap:6px; font-size:12px; color:var(--ink-soft); margin-top:10px; }
.reply-note .dot{ width:6px; height:6px; border-radius:50%; background:var(--line-green); flex-shrink:0; }