/* ===== 変数 ===== */
:root{
  --base: #FAF6F0;
  --base-2: #F3EBE1;
  --ink: #352217;
  --ink-soft: #6B5B4E;
  --accent: #B5542E;
  --accent-dark: #8C3F20;
  --gold: #C8A063;
  --line: rgba(53,34,23,0.14);
  --shadow: rgba(53,34,23,0.08);
  --radius: 16px;
  --font-head: 'Shippori Mincho', serif;
  --font-body: 'Noto Sans JP', sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--base);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.inner{max-width:1080px;margin:0 auto;padding:0 24px;}

h1,h2,h3,h4{
  font-family:var(--font-head);
  line-height:1.35;
  margin:0;
  font-feature-settings:"palt";
}

p{margin:0;}

.hl{
  background:linear-gradient(transparent 58%, rgba(181,84,46,0.22) 58%);
}

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; transition-duration:0.001ms !important;}
}

/* ===== ボタン ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:16px 32px;
  border-radius:999px;
  font-weight:700;
  text-decoration:none;
  border:none;
  cursor:pointer;
  font-size:16px;
  font-family:var(--font-body);
  transition:transform 0.3s cubic-bezier(0.22,1,0.36,1), background 0.3s;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
}
.btn-primary:hover{
  background:var(--accent-dark);
  transform:translateY(-2px);
}
.btn-block{width:100%;}

/* ===== ヘッダー ===== */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:100;
  background:rgba(250,246,240,0.92);
  border-bottom:1px solid transparent;
  transition:all 0.4s cubic-bezier(0.22,1,0.36,1);
}
@media (min-width:769px){
  .site-header{backdrop-filter:blur(8px);}
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 4px 20px var(--shadow);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 24px;
  transition:padding 0.4s cubic-bezier(0.22,1,0.36,1);
}
.scrolled .header-inner{padding:8px 24px;}
.header-logo img{
  height:56px;
  width:auto;
  transition:height 0.4s cubic-bezier(0.22,1,0.36,1);
}
.scrolled .header-logo img{height:40px;}
.header-nav{
  display:flex;
  align-items:center;
  gap:28px;
  font-size:14.5px;
  font-weight:500;
}
.header-nav a{text-decoration:none; position:relative;}
.header-nav a:not(.header-cta)::after{
  content:"";
  position:absolute; left:0; bottom:-4px;
  width:0; height:1px;
  background:var(--accent);
  transition:width 0.3s cubic-bezier(0.22,1,0.36,1);
}
.header-nav a:not(.header-cta):hover::after{width:100%;}
.header-cta{
  background:var(--accent);
  color:#fff !important;
  padding:10px 20px;
  border-radius:999px;
  transition:transform 0.3s cubic-bezier(0.22,1,0.36,1), background 0.3s;
}
.header-cta:hover{background:var(--accent-dark); transform:translateY(-2px);}

.menu-btn{
  display:none;
  width:44px; height:44px;
  border:none; background:none;
  cursor:pointer;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
}
.menu-btn span{
  width:24px; height:2px;
  background:var(--ink);
  transition:transform 0.3s, opacity 0.3s;
}
.menu-btn.open span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.menu-btn.open span:nth-child(2){opacity:0;}
.menu-btn.open span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* ===== ヒーロー ===== */
.hero{
  position:relative;
  min-height:100vh;
  min-height:100svh;
  display:flex;
  align-items:flex-end;
  overflow:hidden;
}
.hero-media{
  position:absolute; inset:0;
}
.hero-media img{
  width:100%; height:100%; object-fit:cover;
  object-position:center 30%;
}
.hero-shade{
  position:absolute; inset:0;
  background:linear-gradient(0deg, rgba(30,18,10,0.82) 0%, rgba(30,18,10,0.55) 42%, rgba(30,18,10,0.25) 70%, rgba(30,18,10,0.35) 100%);
}
.hero-body{
  position:relative;
  z-index:2;
  color:#fff;
  width:100%;
  max-width:1080px;
  margin:0 auto;
  padding:160px 24px 80px;
}
.hero-eyebrow{
  font-size:14px;
  letter-spacing:0.02em;
  margin-bottom:16px;
  opacity:0.9;
}
.hero-title{
  font-size:clamp(28px, 5vw, 46px);
  font-weight:700;
  margin-bottom:24px;
}
.hero-lead{
  font-size:17px;
  max-width:36em;
  margin-bottom:32px;
  opacity:0.95;
}
.hero-lead .hl{background:linear-gradient(transparent 58%, rgba(200,160,99,0.45) 58%);}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-bottom:40px;
}
.hero-note{font-size:13.5px; opacity:0.85;}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  list-style:none;
  padding:16px 0 0;
  margin:0;
  border-top:1px solid rgba(255,255,255,0.25);
  font-size:14px;
}
.hero-badges b{
  font-size:20px;
  font-feature-settings:"tnum";
  margin:0 2px;
  color:var(--gold);
}

/* ===== 共通セクション ===== */
.section{padding:120px 0;}
.section-tint{background:var(--base-2);}
.section-lead{
  color:var(--ink-soft);
  max-width:38em;
  margin-top:16px;
}
.heading{font-size:clamp(22px,3vw,30px); font-weight:700;}
.heading-underline{
  display:inline-block;
  padding-bottom:16px;
  border-bottom:3px solid var(--accent);
}

/* ===== こんな方をお待ちしています ===== */
.welcome-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  margin-top:56px;
}
.welcome-card{
  padding:32px;
  background:#fff;
  border-radius:var(--radius);
  border:1px solid var(--line);
}
.welcome-tag{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--accent);
  margin-bottom:12px;
  letter-spacing:0.02em;
}
.welcome-text{color:var(--ink-soft);}
.welcome-text .hl{background:linear-gradient(transparent 58%, rgba(181,84,46,0.18) 58%);}

/* ===== ストラジの活動 ===== */
.activity-row{
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:56px;
  align-items:center;
  margin-top:80px;
}
.activity-row:first-of-type{margin-top:56px;}
.activity-row-rev{direction:rtl;}
.activity-row-rev > *{direction:ltr;}
.activity-photo img{
  border-radius:var(--radius);
  width:100%;
  height:320px;
  object-fit:cover;
}
.activity-text h3{font-size:22px; margin:8px 0 16px;}
.activity-text p{color:var(--ink-soft);}

/* ===== 余白だけのセクション（ロゴのコンセプト） ===== */
.concept{
  padding:160px 24px;
  text-align:center;
  max-width:720px;
  margin:0 auto;
}
.concept-text{
  font-family:var(--font-head);
  font-size:clamp(22px,3.4vw,32px);
  font-weight:700;
  margin-bottom:20px;
}
.concept-sub{color:var(--ink-soft); font-size:15px;}

/* ===== 歴史タイムライン ===== */
.timeline{
  list-style:none;
  margin:64px 0 0;
  padding:0 0 0 24px;
  border-left:2px solid var(--line);
}
.timeline li{
  position:relative;
  padding:0 0 48px 32px;
}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";
  position:absolute;
  left:-41px; top:4px;
  width:14px; height:14px;
  border-radius:50%;
  background:var(--base);
  border:3px solid var(--accent);
}
.timeline time{
  display:block;
  font-feature-settings:"tnum";
  font-weight:700;
  color:var(--accent);
  font-size:14px;
  margin-bottom:6px;
}
.timeline h4{font-size:17.5px; margin-bottom:6px;}
.timeline p{color:var(--ink-soft); font-size:15px;}

/* ===== ギャラリー ===== */
.gallery{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin-top:56px;
}
.gallery-item{
  margin:0;
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  background:#000;
}
.gallery-wide{grid-column:span 3;}
.gallery-wide img{height:480px; object-fit:cover; width:100%;}
.gallery-item:not(.gallery-wide) img{height:260px; object-fit:cover; width:100%;}
.gallery-item figcaption{
  position:absolute; left:0; right:0; bottom:0;
  padding:14px 18px;
  background:linear-gradient(0deg, rgba(0,0,0,0.65), transparent);
  color:#fff;
  font-size:13.5px;
}

/* ===== 体験参加の流れ ===== */
.steps{
  list-style:none;
  margin:56px 0 0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.steps li{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px; height:36px;
  border-radius:50%;
  background:var(--accent);
  color:#fff;
  font-weight:700;
  font-feature-settings:"tnum";
  margin-bottom:16px;
}
.steps h4{font-size:16px; margin-bottom:10px;}
.steps p{color:var(--ink-soft); font-size:14.5px;}

/* ===== よくある質問 ===== */
.faq-list{margin-top:48px;}
.faq-item{
  padding:28px 0;
  border-bottom:1px solid var(--line);
}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-item h4{font-size:16.5px; margin-bottom:10px;}
.faq-item p{color:var(--ink-soft);}

/* ===== お問い合わせ ===== */
.contact-section{background:var(--base-2);}
.contact-form{
  margin-top:48px;
  max-width:640px;
  display:flex;
  flex-direction:column;
  gap:24px;
}
.form-row{display:flex; flex-direction:column; gap:8px;}
.form-row label{font-size:14.5px; font-weight:500;}
.req{
  color:var(--accent);
  font-size:12px;
  margin-left:8px;
  border:1px solid var(--accent);
  border-radius:4px;
  padding:1px 6px;
}
.form-row input, .form-row select, .form-row textarea{
  font-family:var(--font-body);
  font-size:16px;
  padding:14px 16px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--ink);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{
  border-color:var(--accent);
}
.form-honeypot{position:absolute; left:-9999px; top:-9999px;}

/* ===== フッター ===== */
.site-footer{
  background:var(--base-2);
  color:var(--ink-soft);
  padding:64px 0 40px;
  border-top:1px solid var(--line);
}
.footer-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:24px;
  text-align:center;
}
.footer-logo{
  height:64px; width:auto;
}
.footer-nav{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:24px;
  font-size:14px;
}
.footer-nav a{text-decoration:none;}
.footer-nav a:hover{text-decoration:underline;}
.footer-copy{font-size:12.5px; opacity:0.6;}

/* ===== 出現アニメーション（A1・A9） ===== */
.reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.reveal.is-visible{opacity:1; transform:translateY(0);}
.reveal-group .reveal-child{
  opacity:0;
  transform:translateY(14px);
  transition:opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.reveal-group.is-visible .reveal-child{opacity:1; transform:translateY(0);}
.reveal-group.is-visible .reveal-child:nth-child(1){transition-delay:0s;}
.reveal-group.is-visible .reveal-child:nth-child(2){transition-delay:0.06s;}
.reveal-group.is-visible .reveal-child:nth-child(3){transition-delay:0.12s;}
.reveal-group.is-visible .reveal-child:nth-child(4){transition-delay:0.18s;}
.reveal-group.is-visible .reveal-child:nth-child(5){transition-delay:0.24s;}

/* ===== レスポンシブ ===== */
@media (max-width: 860px){
  .activity-row, .activity-row-rev{
    grid-template-columns:1fr;
    direction:ltr;
    gap:24px;
  }
  .welcome-grid{grid-template-columns:1fr; gap:20px;}
  .steps{grid-template-columns:1fr 1fr; gap:16px;}
  .gallery{grid-template-columns:1fr 1fr;}
  .gallery-wide{grid-column:span 2;}
}

@media (max-width: 768px){
  .section{padding:80px 0;}
  .concept{padding:96px 24px;}
  .header-nav{
    position:fixed;
    top:0; right:0;
    height:100vh;
    width:min(78vw, 320px);
    background:var(--base);
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:28px;
    padding:32px;
    transform:translateX(100%);
    transition:transform 0.35s cubic-bezier(0.22,1,0.36,1);
    box-shadow:-8px 0 24px rgba(0,0,0,0.08);
  }
  .header-nav.open{transform:translateX(0);}
  .menu-btn{display:flex;}
  .header-cta{width:100%; text-align:center;}
  .hero-body{padding:140px 20px 56px;}
  .hero-badges{gap:16px; font-size:13px;}
  .steps{grid-template-columns:1fr;}
  .gallery{grid-template-columns:1fr;}
  .gallery-wide{grid-column:span 1;}
  .gallery-wide img{height:260px;}
}