/* ============================================================
   和太鼓団体 響-HIBIKI- / 共通スタイル
   Design tokens
============================================================ */
:root{
  --indigo:#1B2A4A;
  --indigo-deep:#101a30;
  --shu:#B33A3A;
  --shu-deep:#8f2c2c;
  --wood:#6B4A34;
  --paper:#EFE8D8;
  --paper-soft:#F6F2E7;
  --sumi:#2A2620;
  --gold:#AD8A3F;
  --line:rgba(42,38,32,0.14);

  --font-display:"Shippori Mincho", "Noto Serif JP", serif;
  --font-body:"Zen Kaku Gothic New", "Noto Sans JP", sans-serif;

  --radius:6px;
  --container:1120px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--sumi);
  font-family:var(--font-body);
  font-weight:400;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%; display:block;}
a{color:inherit;}
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--indigo);
  line-height:1.5;
  margin:0 0 .6em;
  font-weight:700;
}
p{margin:0 0 1em;}
.wrap{max-width:var(--container); margin:0 auto; padding:0 24px;}

a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:3px solid var(--gold);
  outline-offset:3px;
}

/* ---------- 同心円モチーフ(太鼓の皮/胴) ---------- */
.ring-motif{
  position:absolute;
  border-radius:50%;
  border:1px solid rgba(255,255,255,0.16);
  pointer-events:none;
}
.ring-motif.dark{border-color:rgba(27,42,74,0.10);}

/* ---------- ヘッダー / ナビ ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:var(--indigo);
  border-bottom:3px solid var(--shu);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  min-height:76px;
}
.brand{
  display:flex; align-items:center; gap:12px;
  text-decoration:none;
  color:var(--paper-soft);
}
.brand .mark{
  width:38px; height:38px; flex:none; position:relative;
}
.brand .mark svg{width:100%; height:100%;}
.brand-text{
  font-family:var(--font-display);
  font-size:1.28rem;
  letter-spacing:.03em;
  line-height:1.2;
}
.brand-text small{
  display:block;
  font-family:var(--font-body);
  font-size:.62rem;
  letter-spacing:.24em;
  color:var(--gold);
  font-weight:500;
  margin-top:2px;
}

.nav-toggle{
  display:none;
  background:none; border:1px solid rgba(246,242,231,0.35);
  border-radius:4px;
  width:44px; height:40px;
  position:relative;
  cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute; left:11px; right:11px;
  height:2px; background:var(--paper-soft);
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle span{top:19px;}
.nav-toggle span::before{top:-7px;}
.nav-toggle span::after{top:7px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-7px) rotate(-45deg);}

.main-nav ul{
  list-style:none; display:flex; gap:2px;
  margin:0; padding:0;
}
.main-nav a{
  display:block;
  text-decoration:none;
  color:var(--paper-soft);
  font-size:.94rem;
  letter-spacing:.04em;
  padding:10px 14px;
  border-radius:4px;
  transition:background .2s ease, color .2s ease;
  white-space:nowrap;
}
.main-nav a:hover{background:rgba(246,242,231,0.12);}
.main-nav a[aria-current="page"]{color:var(--gold); font-weight:700;}

.has-dropdown{position:relative;}
.dropdown{
  list-style:none; margin:0; padding:6px;
  position:absolute; top:calc(100% + 6px); left:0;
  background:var(--indigo-deep);
  border:1px solid rgba(246,242,231,0.16);
  border-radius:6px;
  min-width:200px;
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .18s ease, transform .18s ease, visibility .18s ease;
  box-shadow:0 14px 28px rgba(0,0,0,.28);
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{
  opacity:1; visibility:visible; transform:translateY(0);
}
.dropdown a{font-size:.88rem; padding:9px 12px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  background:radial-gradient(120% 140% at 78% 18%, #24365c 0%, var(--indigo) 46%, var(--indigo-deep) 100%);
  color:var(--paper-soft);
  padding:96px 0 108px;
}
.hero .wrap{position:relative; z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr 0.9fr;
  gap:48px;
  align-items:center;
}
.hero-media{
  position:relative;
  border-radius:8px;
  overflow:hidden;
  aspect-ratio:4/3;
  box-shadow:0 24px 48px rgba(0,0,0,0.28);
}
.hero-media img{width:100%; height:100%; object-fit:cover;}
.hero-media::after{
  content:"";
  position:absolute; inset:0;
  border:1px solid rgba(246,242,231,0.25);
  border-radius:8px;
  pointer-events:none;
}
.hero-media .caption{
  position:absolute; left:0; right:0; bottom:0;
  background:linear-gradient(0deg, rgba(16,26,48,0.85), rgba(16,26,48,0));
  color:var(--paper-soft);
  font-size:.8rem; letter-spacing:.04em;
  padding:34px 18px 14px;
}
.hero .rings{right:-260px; top:-140px;}
.hero .rings{position:absolute; right:-120px; top:-140px; z-index:1; opacity:.9;}
.hero-eyebrow{
  font-size:.78rem; letter-spacing:.32em; color:var(--gold);
  margin-bottom:18px; font-weight:600;
}
.hero h1{
  color:#fff;
  font-size:clamp(2.1rem, 5vw, 3.4rem);
  max-width:16ch;
  margin-bottom:.5em;
}
.hero p.lead{
  max-width:46ch; color:rgba(246,242,231,0.86);
  font-size:1.05rem;
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap; margin-top:32px;}
 
.btn{
  display:inline-block;
  font-family:var(--font-body);
  font-weight:700;
  font-size:.92rem;
  letter-spacing:.03em;
  padding:13px 26px;
  border-radius:3px;
  text-decoration:none;
  border:1.5px solid transparent;
  transition:transform .18s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--shu); color:#fff;}
.btn-primary:hover{background:var(--shu-deep);}
.btn-ghost{border-color:rgba(246,242,231,0.5); color:var(--paper-soft);}
.btn-ghost:hover{background:rgba(246,242,231,0.12);}
.btn-dark{border-color:var(--indigo); color:var(--indigo);}
.btn-dark:hover{background:var(--indigo); color:#fff;}

/* ---------- セクション共通 ---------- */
.section{padding:84px 0;}
.section-alt{background:var(--paper-soft);}
.section-indigo{background:var(--indigo); color:var(--paper-soft);}
.section-indigo h2,.section-indigo h3{color:#fff;}

.section-head{max-width:640px; margin:0 auto 52px; text-align:center;}
.section-head .eyebrow{
  display:inline-block;
  font-size:.75rem; letter-spacing:.3em; color:var(--shu);
  font-weight:700; margin-bottom:14px;
}
.section-indigo .section-head .eyebrow{color:var(--gold);}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.2rem);}
.section-head p{color:rgba(42,38,32,0.72);}
.section-indigo .section-head p{color:rgba(246,242,231,0.78);}

.divider{
  display:flex; align-items:center; justify-content:center; gap:14px;
  margin:0 auto 52px; max-width:220px;
}
.divider::before,.divider::after{content:""; flex:1; height:1px; background:var(--line);}
.divider .dot{width:9px; height:9px; border-radius:50%; border:1.5px solid var(--shu);}

/* ---------- カード群 ---------- */
.grid{display:grid; gap:28px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 28px;
  position:relative;
}
.card .num{
  font-family:var(--font-display);
  font-size:.8rem; color:var(--gold);
  letter-spacing:.15em;
  margin-bottom:10px; display:block;
}
.card h3{font-size:1.15rem; margin-bottom:.5em;}
.card p{color:rgba(42,38,32,0.75); font-size:.95rem; margin-bottom:0;}

.link-card{
  display:block;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 26px;
  text-decoration:none;
  transition:border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.link-card:hover{border-color:var(--shu); transform:translateY(-3px); box-shadow:0 16px 30px rgba(27,42,74,0.08);}
.link-card .tag{font-size:.72rem; letter-spacing:.2em; color:var(--shu); font-weight:700;}
.link-card h3{margin:.5em 0 .4em; color:var(--indigo); font-size:1.2rem;}
.link-card p{color:rgba(42,38,32,0.7); font-size:.92rem; margin-bottom:0;}
.link-card .arrow{display:inline-block; margin-top:14px; font-size:.85rem; color:var(--wood); font-weight:700;}

/* ---------- フッター ---------- */
.site-footer{
  background:var(--indigo-deep);
  color:rgba(246,242,231,0.72);
  padding:56px 0 28px;
}
.footer-grid{
  display:grid; grid-template-columns:1.3fr 1fr 1fr; gap:40px;
  padding-bottom:36px; border-bottom:1px solid rgba(246,242,231,0.12);
}
.footer-grid h4{color:var(--gold); font-family:var(--font-body); font-size:.82rem; letter-spacing:.16em; margin-bottom:16px;}
.footer-grid ul{list-style:none; margin:0; padding:0;}
.footer-grid li{margin-bottom:9px;}
.footer-grid a{text-decoration:none; font-size:.9rem; opacity:.88;}
.footer-grid a:hover{opacity:1; color:#fff;}
.footer-brand{font-family:var(--font-display); color:#fff; font-size:1.1rem; margin-bottom:10px;}
.sns-row{display:flex; gap:12px; margin-top:16px;}
.sns-row a{
  width:38px; height:38px; border-radius:50%;
  border:1px solid rgba(246,242,231,0.3);
  display:flex; align-items:center; justify-content:center;
  text-decoration:none;
}
.sns-row a:hover{border-color:var(--gold); color:var(--gold);}
.copyright{
  padding-top:22px; font-size:.78rem; letter-spacing:.02em; color:rgba(246,242,231,0.5);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
}

/* ---------- ページヘッダー(下層ページ用) ---------- */
.page-hero{
  background:linear-gradient(160deg, var(--indigo) 0%, var(--indigo-deep) 100%);
  color:#fff; padding:64px 0 56px; position:relative; overflow:hidden;
}
.page-hero .eyebrow{color:var(--gold); font-size:.78rem; letter-spacing:.3em; font-weight:700; margin-bottom:14px;}
.page-hero h1{color:#fff; font-size:clamp(1.9rem,4vw,2.6rem); margin-bottom:.4em;}
.page-hero p{color:rgba(246,242,231,0.82); max-width:52ch; margin-bottom:0;}
.breadcrumb{font-size:.8rem; color:rgba(246,242,231,0.6); margin-bottom:18px;}
.breadcrumb a{text-decoration:none; color:inherit;}
.breadcrumb a:hover{color:#fff;}

/* ---------- タブ (活動予定) ---------- */
.tabs{display:flex; gap:10px; justify-content:center; margin-bottom:40px; flex-wrap:wrap;}
.tab-btn{
  background:#fff; border:1.5px solid var(--line);
  padding:12px 26px; border-radius:30px;
  font-family:var(--font-body); font-weight:700; font-size:.92rem;
  cursor:pointer; color:var(--indigo); transition:all .2s ease;
}
.tab-btn[aria-selected="true"]{background:var(--shu); border-color:var(--shu); color:#fff;}
.tab-panel{display:none;}
.tab-panel.is-active{display:block; animation:fadein .3s ease;}
@keyframes fadein{from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);}}

.schedule-list{display:flex; flex-direction:column; gap:16px; max-width:760px; margin:0 auto;}
.schedule-item{
  display:grid; grid-template-columns:120px 1fr; gap:22px;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:22px 26px;
}
.schedule-item .date{
  font-family:var(--font-display); color:var(--shu);
  border-right:1px solid var(--line); padding-right:20px;
}
.schedule-item .date .d{font-size:1.5rem; font-weight:700; display:block;}
.schedule-item .date .w{font-size:.78rem; color:var(--wood);}
.schedule-item h3{font-size:1.05rem; margin-bottom:.35em;}
.schedule-item .meta{font-size:.85rem; color:var(--wood); margin-bottom:.4em;}
.schedule-item .badge{
  display:inline-block; font-size:.7rem; letter-spacing:.1em;
  padding:3px 10px; border-radius:20px; margin-bottom:8px; font-weight:700;
}
.badge-practice{background:rgba(107,74,52,0.12); color:var(--wood);}
.badge-stage{background:rgba(179,58,58,0.12); color:var(--shu);}

/* ---------- ギャラリー(活動の様子) ---------- */
.gallery{display:grid; grid-template-columns:repeat(3,1fr); gap:20px;}
.gallery figure{
  margin:0; position:relative; border-radius:var(--radius); overflow:hidden;
  background:var(--wood); aspect-ratio:4/3;
}
.gallery figure img{width:100%; height:100%; object-fit:cover;}
.gallery figcaption{
  position:absolute; left:0; right:0; bottom:0;
  background:linear-gradient(0deg, rgba(16,26,48,0.88), rgba(16,26,48,0));
  color:#fff; padding:34px 16px 14px; font-size:.85rem;
}
.report{
  border-top:1px solid var(--line); padding:28px 0; display:grid;
  grid-template-columns:160px 1fr; gap:24px;
}
.report time{font-size:.82rem; color:var(--shu); font-weight:700; letter-spacing:.04em;}

/* ---------- お問い合わせ ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start;}
.form-field{margin-bottom:20px;}
.form-field label{display:block; font-size:.88rem; font-weight:700; margin-bottom:8px; color:var(--indigo);}
.form-field input,.form-field select,.form-field textarea{
  width:100%; padding:12px 14px; border:1.5px solid var(--line); border-radius:4px;
  font-family:var(--font-body); font-size:.95rem; background:#fff; color:var(--sumi);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none; border-color:var(--shu);
}
.form-field .req{color:var(--shu); font-size:.75rem; margin-left:6px;}
.radio-row{display:flex; gap:18px; flex-wrap:wrap;}
.radio-row label{display:flex; align-items:center; gap:7px; font-weight:400; font-size:.92rem; color:var(--sumi);}

.sns-grid{display:grid; gap:16px;}
.sns-card{
  display:flex; align-items:center; gap:16px;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 22px; text-decoration:none;
}
.sns-card:hover{border-color:var(--shu);}
.sns-card .icon{
  width:46px; height:46px; border-radius:50%; background:var(--indigo);
  color:#fff; display:flex; align-items:center; justify-content:center; flex:none;
}
.sns-card h4{margin:0 0 3px; color:var(--indigo); font-size:1rem; font-family:var(--font-body); font-weight:700;}
.sns-card p{margin:0; font-size:.85rem; color:rgba(42,38,32,0.65);}

.info-box{
  background:var(--paper-soft); border:1px solid var(--line); border-radius:var(--radius);
  padding:24px 26px; margin-top:24px;
}
.info-box h4{color:var(--indigo); font-size:.95rem; margin-bottom:10px;}
.info-box dl{margin:0; display:grid; grid-template-columns:auto 1fr; gap:8px 16px; font-size:.9rem;}
.info-box dt{color:var(--wood); font-weight:700;}
.info-box dd{margin:0;}


/* ---------- ニュース欄 ---------- */
.news-list{
  max-width:820px; margin:0 auto;
  border-top:1px solid var(--line);
}
.news-item{
  display:grid;
  grid-template-columns:120px 130px 1fr 20px;
  align-items:center;
  gap:20px;
  padding:20px 6px;
  border-bottom:1px solid var(--line);
  text-decoration:none;
  color:var(--sumi);
  transition:background .2s ease, padding-left .2s ease;
}
.news-item:hover{background:rgba(179,58,58,0.05); padding-left:14px;}
.news-item time{
  font-family:var(--font-display);
  font-size:.85rem; color:var(--wood);
}
.news-tag{
  justify-self:start;
  display:inline-block;
  font-size:.7rem; letter-spacing:.08em; font-weight:700;
  padding:4px 12px; border-radius:20px;
  white-space:nowrap;
}
.news-tag.is-info{background:rgba(27,42,74,0.09); color:var(--indigo);}
.news-tag.is-stage{background:rgba(179,58,58,0.1); color:var(--shu);}
.news-tag.is-recruit{background:rgba(173,138,63,0.16); color:#8a6c2c;}
.news-item h3{
  font-family:var(--font-body); font-weight:700; color:var(--sumi);
  font-size:.96rem; margin:0;
}
.news-item .arrow{color:var(--wood); font-size:.9rem; justify-self:end;}
.news-more{text-align:center; margin-top:32px;}

/* ---------- お問い合わせ ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start;}
.form-field{margin-bottom:20px;}
.form-field label{display:block; font-size:.88rem; font-weight:700; margin-bottom:8px; color:var(--indigo);}
.form-field input,.form-field select,.form-field textarea{
  width:100%; padding:12px 14px; border:1.5px solid var(--line); border-radius:4px;
  font-family:var(--font-body); font-size:.95rem; background:#fff; color:var(--sumi);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none; border-color:var(--shu);
}
.form-field .req{color:var(--shu); font-size:.75rem; margin-left:6px;}
.radio-row{display:flex; gap:18px; flex-wrap:wrap;}
.radio-row label{display:flex; align-items:center; gap:7px; font-weight:400; font-size:.92rem; color:var(--sumi);}

.sns-grid{display:grid; gap:16px;}
.sns-card{
  display:flex; align-items:center; gap:16px;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 22px; text-decoration:none;
}
.sns-card:hover{border-color:var(--shu);}
.sns-card .icon{
  width:46px; height:46px; border-radius:50%; background:var(--indigo);
  color:#fff; display:flex; align-items:center; justify-content:center; flex:none;
}
.sns-card h4{margin:0 0 3px; color:var(--indigo); font-size:1rem; font-family:var(--font-body); font-weight:700;}
.sns-card p{margin:0; font-size:.85rem; color:rgba(42,38,32,0.65);}

.info-box{
  background:var(--paper-soft); border:1px solid var(--line); border-radius:var(--radius);
  padding:24px 26px; margin-top:24px;
}
.info-box h4{color:var(--indigo); font-size:.95rem; margin-bottom:10px;}
.info-box dl{margin:0; display:grid; grid-template-columns:auto 1fr; gap:8px 16px; font-size:.9rem;}
.info-box dt{color:var(--wood); font-weight:700;}
.info-box dd{margin:0;}

/* ---------- ステップ(入会の流れ) ---------- */
.step-list{
  max-width:760px; margin:0 auto;
  display:flex; flex-direction:column;
}
.step-item{
  display:grid; grid-template-columns:56px 1fr; gap:22px;
  padding:26px 0;
  position:relative;
}
.step-item:not(:last-child)::after{
  content:"";
  position:absolute; left:27px; top:66px; bottom:-6px;
  width:1px; background:var(--line);
}
.step-num{
  width:54px; height:54px; border-radius:50%;
  background:var(--indigo); color:#fff;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-display); font-size:1.2rem; font-weight:700;
  flex:none; position:relative; z-index:1;
}
.step-item h3{font-size:1.1rem; margin-bottom:.4em;}
.step-item p{color:rgba(42,38,32,0.75); margin-bottom:0; font-size:.95rem;}
 
/* ---------- FAQ ---------- */
.faq-list{max-width:760px; margin:0 auto; display:flex; flex-direction:column; gap:12px;}
.faq-item{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden;
}
.faq-item summary{
  list-style:none; cursor:pointer;
  padding:20px 52px 20px 24px;
  font-weight:700; color:var(--indigo);
  position:relative;
  font-size:.98rem;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"Q";
  color:var(--shu); font-family:var(--font-display); font-weight:700;
  margin-right:10px;
}
.faq-item summary::after{
  content:"+";
  position:absolute; right:22px; top:50%; transform:translateY(-50%);
  font-size:1.3rem; color:var(--wood); font-weight:400;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-item .faq-a{
  padding:0 24px 22px 24px;
  color:rgba(42,38,32,0.78);
  font-size:.92rem;
}
.faq-item .faq-a::before{content:"A"; color:var(--wood); font-family:var(--font-display); font-weight:700; margin-right:10px;}
 
/* ---------- Googleフォーム埋め込み ---------- */
.form-embed-wrap{
  max-width:760px; margin:0 auto;
  background:#fff; border:1px solid var(--line); border-radius:8px;
  padding:8px; overflow:hidden;
}
.form-embed{
  position:relative; width:100%;
  height:1250px;
}
.form-embed iframe{
  position:absolute; inset:0;
  width:100%; height:100%; border:0;
}
.form-fallback{
  text-align:center; margin-top:18px; font-size:.88rem; color:var(--wood);
}
 
/* ---------- お問い合わせ ---------- */
.contact-grid{display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:start;}
.form-field{margin-bottom:20px;}
.form-field label{display:block; font-size:.88rem; font-weight:700; margin-bottom:8px; color:var(--indigo);}
.form-field input,.form-field select,.form-field textarea{
  width:100%; padding:12px 14px; border:1.5px solid var(--line); border-radius:4px;
  font-family:var(--font-body); font-size:.95rem; background:#fff; color:var(--sumi);
}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none; border-color:var(--shu);
}
.form-field .req{color:var(--shu); font-size:.75rem; margin-left:6px;}
.radio-row{display:flex; gap:18px; flex-wrap:wrap;}
.radio-row label{display:flex; align-items:center; gap:7px; font-weight:400; font-size:.92rem; color:var(--sumi);}
 
.sns-grid{display:grid; gap:16px;}
.sns-card{
  display:flex; align-items:center; gap:16px;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius);
  padding:20px 22px; text-decoration:none;
}
.sns-card:hover{border-color:var(--shu);}
.sns-card .icon{
  width:46px; height:46px; border-radius:50%; background:var(--indigo);
  color:#fff; display:flex; align-items:center; justify-content:center; flex:none;
}
.sns-card h4{margin:0 0 3px; color:var(--indigo); font-size:1rem; font-family:var(--font-body); font-weight:700;}
.sns-card p{margin:0; font-size:.85rem; color:rgba(42,38,32,0.65);}
 
.info-box{
  background:var(--paper-soft); border:1px solid var(--line); border-radius:var(--radius);
  padding:24px 26px; margin-top:24px;
}
.info-box h4{color:var(--indigo); font-size:.95rem; margin-bottom:10px;}
.info-box dl{margin:0; display:grid; grid-template-columns:auto 1fr; gap:8px 16px; font-size:.9rem;}
.info-box dt{color:var(--wood); font-weight:700;}
.info-box dd{margin:0;}
 
/* ---------- ゲートページ(内部生/新規向け入口) ---------- */
.gate-grid{display:grid; grid-template-columns:1fr 1fr; gap:32px;}
.gate-card{
  background:#fff; border:1px solid var(--line); border-radius:8px;
  padding:44px 34px; text-align:center; text-decoration:none; position:relative;
  overflow:hidden;
}
.gate-card:hover{border-color:var(--shu);}
.gate-card .icon-wrap{
  width:74px; height:74px; margin:0 auto 22px; border-radius:50%;
  background:var(--indigo); color:#fff; display:flex; align-items:center; justify-content:center;
}
.gate-card h3{font-size:1.3rem; margin-bottom:.4em;}
.gate-card p{color:rgba(42,38,32,0.7); font-size:.92rem;}
.gate-card .btn{margin-top:20px;}
 
/* ---------- 準備中ページ ---------- */
.placeholder-box{
  border:2px dashed var(--line); border-radius:10px;
  padding:60px 30px; text-align:center; color:var(--wood);
  max-width:640px; margin:0 auto;
}

/* ---------- ゲートページ(内部生/新規向け入口) ---------- */
.gate-grid{display:grid; grid-template-columns:1fr 1fr; gap:32px;}
.gate-card{
  background:#fff; border:1px solid var(--line); border-radius:8px;
  padding:44px 34px; text-align:center; text-decoration:none; position:relative;
  overflow:hidden;
}
.gate-card:hover{border-color:var(--shu);}
.gate-card .icon-wrap{
  width:74px; height:74px; margin:0 auto 22px; border-radius:50%;
  background:var(--indigo); color:#fff; display:flex; align-items:center; justify-content:center;
}
.gate-card h3{font-size:1.3rem; margin-bottom:.4em;}
.gate-card p{color:rgba(42,38,32,0.7); font-size:.92rem;}
.gate-card .btn{margin-top:20px;}

/* ---------- 準備中ページ ---------- */
.placeholder-box{
  border:2px dashed var(--line); border-radius:10px;
  padding:60px 30px; text-align:center; color:var(--wood);
  max-width:640px; margin:0 auto;
}

/* ============================================================
   レスポンシブ
============================================================ */
@media (max-width:900px){
  .grid-3{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .gallery{grid-template-columns:repeat(2,1fr);}
  .contact-grid{grid-template-columns:1fr;}
  .gate-grid{grid-template-columns:1fr;}
}

@media (max-width:760px){
  .nav-toggle{display:block;}
  .main-nav{
    position:fixed; inset:76px 0 0 0; background:var(--indigo-deep);
    transform:translateX(100%); transition:transform .28s ease;
    overflow-y:auto; padding:20px 0 40px;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column; padding:0 24px;}
  .main-nav a{padding:16px 8px; border-bottom:1px solid rgba(246,242,231,0.1); border-radius:0;}
  .has-dropdown .dropdown{
    position:static; opacity:1; visibility:visible; transform:none;
    background:transparent; border:none; box-shadow:none; padding:0 0 0 14px; display:none;
  }
  .has-dropdown.is-open .dropdown{display:block;}
  .dropdown a{border-bottom:1px solid rgba(246,242,231,0.06); color:rgba(246,242,231,0.75);}

  .hero{padding:64px 0 72px;}
  .hero-actions{flex-direction:column; align-items:flex-start;}
  .section{padding:60px 0;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr; gap:28px;}
  .gallery{grid-template-columns:1fr 1fr;}
  .schedule-item{grid-template-columns:1fr;}
  .schedule-item .date{border-right:none; border-bottom:1px solid var(--line); padding-right:0; padding-bottom:12px; display:flex; align-items:baseline; gap:10px;}
  .report{grid-template-columns:1fr; gap:8px;}
  .copyright{flex-direction:column;}
}

@media (max-width:480px){
  .gallery{grid-template-columns:1fr;}
  .wrap{padding:0 18px;}
}