:root{
  --ink:        #221f1a;
  --ink-soft:   #4d473c;
  --washi:      #f5f0e3;
  --washi-deep: #e7ddc4;
  --washi-line: #d2c4a0;
  --paper:      #fbf6ea;

  --night:      #141c2c;   /* Historipediaの夜空・図書室の深藍 */
  --night-deep: #0a0f19;
  --night-mid:  #22314a;

  --gold:       #c99a3e;   /* 金箔・栞のリボン */
  --gold-soft:  #e3c281;

  /* 各地域のブランドカラー（カードに使用） */
  --hagi-a:     #a8402c;   /* 萩=朱 */
  --hagi-b:     #1c2c3d;   /* 萩=藍 */
  --jinseki-a:  #a3402c;   /* 神石高原=朱 */
  --jinseki-b:  #182238;   /* 神石高原=夜空 */

  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-body: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-num: "Cormorant Garamond", var(--font-display);

  color-scheme: light;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--washi);
  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;text-decoration:none;}
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.45;
  margin:0;
  text-wrap:balance;
}
p{margin:0 0 1em;}
::selection{background:var(--gold);color:var(--night-deep);}

.wrap{max-width:1080px;margin:0 auto;padding-inline:24px;}

/* ---------- ヘッダー ---------- */
.site-header{
  background:var(--night);
  color:var(--washi);
  border-bottom:1px solid rgba(227,194,129,.2);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding-block:18px;
  gap:20px;
}
.brand{
  display:flex;align-items:baseline;gap:.5em;
  font-family:var(--font-display);
  font-size:1.15rem;
  font-weight:700;
  letter-spacing:.03em;
  color:var(--washi);
}
.brand .sub{
  font-family:var(--font-body);
  font-size:.68rem;
  font-weight:500;
  letter-spacing:.22em;
  color:rgba(245,240,227,.6);
}
.header-right{display:flex;align-items:center;gap:1.6em;flex-wrap:wrap;justify-content:flex-end;}
.site-header nav{
  display:flex;gap:1.6em;
  font-size:.86rem;
  letter-spacing:.04em;
}
.site-header nav a{
  color:rgba(245,240,227,.82);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .2s, border-color .2s;
}
.site-header nav a:hover{color:var(--gold-soft);border-color:var(--gold-soft);}

.lang-switch{display:flex;gap:.4em;font-size:.76rem;letter-spacing:.06em;}
.lang-switch a{
  color:rgba(245,240,227,.55);
  padding:.25em .6em;
  border-radius:999px;
  border:1px solid transparent;
  transition:color .2s, background .2s, border-color .2s;
}
.lang-switch a:hover{color:var(--gold-soft);border-color:rgba(227,194,129,.4);}
.lang-switch a.active{
  color:var(--night-deep);
  background:var(--gold-soft);
  font-weight:700;
}

/* ---------- ヒーロー ---------- */
.hero{
  background:
    radial-gradient(ellipse 90% 70% at 20% -10%, rgba(227,194,129,.14), transparent 60%),
    linear-gradient(180deg, var(--night) 0%, var(--night-mid) 100%);
  color:var(--washi);
  padding-block:88px 96px;
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, rgba(227,194,129,.55), transparent),
    radial-gradient(1.5px 1.5px at 78% 15%, rgba(227,194,129,.4), transparent),
    radial-gradient(1px 1px at 45% 8%, rgba(227,194,129,.5), transparent),
    radial-gradient(1.5px 1.5px at 88% 45%, rgba(227,194,129,.3), transparent),
    radial-gradient(1px 1px at 30% 55%, rgba(227,194,129,.35), transparent);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:1;text-align:center;}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:.7em;
  font-size:.76rem;letter-spacing:.36em;font-weight:600;
  color:var(--gold-soft);text-transform:uppercase;
  margin-bottom:22px;
}
.hero .eyebrow::before,.hero .eyebrow::after{
  content:"";width:1.6em;height:1px;background:var(--gold-soft);display:inline-block;
}
.hero h1{
  font-size:clamp(2.3rem, 5vw, 3.6rem);
  color:var(--washi);
  margin-bottom:20px;
}
.hero h1 em{
  font-style:italic;
  font-family:var(--font-num);
  color:var(--gold-soft);
}
.hero .lede{
  max-width:36em;margin:0 auto 8px;
  color:rgba(245,240,227,.82);
  font-size:1.02rem;
}
.hero .region-count{
  display:inline-flex;align-items:center;gap:.5em;
  margin-top:28px;
  padding:.55em 1.3em;
  border:1px solid rgba(227,194,129,.4);
  border-radius:999px;
  font-size:.82rem;
  letter-spacing:.06em;
  color:var(--gold-soft);
}
.hero .region-count strong{
  font-family:var(--font-num);
  font-size:1.15em;
  font-weight:600;
}

/* ---------- セクション共通 ---------- */
section{padding-block:76px;}
.section-head{text-align:center;max-width:46em;margin:0 auto 48px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  font-size:.76rem;letter-spacing:.32em;font-weight:600;
  color:var(--hagi-a);text-transform:uppercase;
  margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:1.4em;height:1px;background:currentColor;display:inline-block;}
.section-head h2{font-size:clamp(1.5rem, 3vw, 1.9rem);}
.section-head p{color:var(--ink-soft);margin-top:14px;}

/* ---------- 地域カードグリッド ---------- */
.region-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(300px, 1fr));
  gap:28px;
}
.region-card{
  background:var(--paper);
  border:1px solid var(--washi-line);
  border-radius:4px;
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .25s ease, box-shadow .25s ease;
}
.region-card:not(.soon):hover{
  transform:translateY(-4px);
  box-shadow:0 18px 34px -18px rgba(20,28,44,.35);
}
.region-card .photo{
  aspect-ratio:4/3;
  overflow:hidden;
  position:relative;
  background:var(--washi-deep);
}
.region-card .photo img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.region-card:hover .photo img{transform:scale(1.05);}
.region-card .photo .pref{
  position:absolute;left:14px;bottom:12px;
  font-size:.7rem;letter-spacing:.14em;
  color:#fff;
  background:rgba(10,15,25,.55);
  padding:.35em .8em;
  border-radius:999px;
  backdrop-filter:blur(2px);
}
.region-card .body{
  padding:26px 24px 28px;
  display:flex;flex-direction:column;flex:1;
}
.region-card .kana{
  font-size:.72rem;letter-spacing:.18em;color:var(--ink-soft);
  margin-bottom:4px;
}
.region-card h3{
  font-size:1.3rem;
  margin-bottom:10px;
}
.region-card p.desc{
  color:var(--ink-soft);
  font-size:.92rem;
  flex:1;
  margin-bottom:18px;
}
.region-card .go{
  display:inline-flex;align-items:center;gap:.5em;
  align-self:flex-start;
  font-size:.86rem;font-weight:600;letter-spacing:.03em;
  padding:.7em 1.3em;
  border-radius:999px;
  color:#fff;
  transition:filter .2s, transform .2s;
}
.region-card .go:hover{filter:brightness(1.08);transform:translateX(2px);}
.region-card .go svg{width:1em;height:1em;}

.card-hagi .go{background:linear-gradient(120deg, var(--hagi-a), var(--hagi-b));}
.card-hagi .kana{color:var(--hagi-a);}
.card-jinseki .go{background:linear-gradient(120deg, var(--jinseki-a), var(--jinseki-b));}
.card-jinseki .kana{color:var(--jinseki-a);}

/* ---------- 近日公開カード ---------- */
.region-card.soon{
  background:transparent;
  border:1.5px dashed var(--washi-line);
  align-items:center;justify-content:center;
  text-align:center;
  padding:0;
}
.region-card.soon .body{
  padding:40px 28px;
  align-items:center;
  justify-content:center;
}
.region-card.soon .icon{
  width:44px;height:44px;
  margin:0 auto 18px;
  border-radius:50%;
  border:1.5px dashed var(--ink-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-soft);
  font-family:var(--font-num);
  font-size:1.3rem;
}
.region-card.soon h3{
  font-size:1.1rem;
  color:var(--ink-soft);
  margin-bottom:8px;
}
.region-card.soon p{
  color:var(--ink-soft);
  font-size:.86rem;
  max-width:22em;
}

/* ---------- コンセプト帯 ---------- */
.concept{
  background:var(--washi-deep);
  border-top:1px solid var(--washi-line);
  border-bottom:1px solid var(--washi-line);
}
.concept .wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.concept .num{
  font-family:var(--font-num);
  font-style:italic;
  font-size:3.4rem;
  color:var(--gold);
  line-height:1;
  margin-bottom:10px;
  display:block;
}
.concept-item p{color:var(--ink-soft);font-size:.92rem;margin:0;}
.concept-item h3{font-size:1.05rem;margin-bottom:10px;}

/* ---------- 日本地図 ---------- */
.map-section{background:var(--washi);}
.japan-map-wrap{
  position:relative;
  max-width:560px;
  margin:0 auto;
}
.japan-map-img{width:100%;display:block;}
.map-pin{
  position:absolute;
  transform:translate(-50%,-50%);
  cursor:pointer;
  text-decoration:none;
  padding:8px;
  margin:-8px;
}
.map-pin .pin-dot{
  display:block;
  width:13px;height:13px;
  border-radius:50%;
  background:var(--hagi-a);
  border:2px solid var(--paper);
  box-shadow:0 0 0 1px var(--hagi-a);
  transition:background .18s, transform .18s;
}
.map-pin .pin-tip{
  position:absolute;
  left:50%;bottom:calc(100% + 4px);
  transform:translateX(-50%) translateY(4px);
  font-family:var(--font-display);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--night-deep);
  background:var(--gold-soft);
  padding:3px 10px;
  border-radius:4px;
  white-space:nowrap;
  opacity:0;
  pointer-events:none;
  transition:opacity .15s, transform .15s;
  box-shadow:0 4px 10px -4px rgba(20,28,44,.45);
}
.map-pin.tip-below .pin-tip{
  bottom:auto;top:calc(100% + 4px);
  transform:translateX(-50%) translateY(-4px);
}
.map-pin:hover .pin-dot,
.map-pin:focus-visible .pin-dot{background:var(--gold);transform:scale(1.45);}
.map-pin:hover .pin-tip,
.map-pin:focus-visible .pin-tip{opacity:1;transform:translateX(-50%) translateY(0);}
.map-pin:focus-visible{outline:none;}

.map-legend{
  display:flex;flex-wrap:wrap;justify-content:center;
  gap:8px 10px;
  margin-top:32px;
}
.map-legend a{
  font-size:.82rem;letter-spacing:.02em;
  padding:.42em 1.1em;
  border:1px solid var(--washi-line);
  border-radius:999px;
  background:var(--paper);
  color:var(--ink-soft);
  transition:border-color .18s, color .18s, background .18s;
}
.map-legend a:hover{border-color:var(--hagi-a);color:var(--hagi-a);background:var(--washi);}

@media (max-width:640px){
  .japan-map-wrap{max-width:420px;}
  .map-pin .pin-tip{font-size:11px;padding:2px 8px;}
  .map-pin .pin-dot{width:11px;height:11px;}
}

/* ---------- パンくず（下層ページ用） ---------- */
.crumbline{font-size:.8rem;color:rgba(245,240,227,.6);margin-bottom:14px;letter-spacing:.02em;}
.crumbline a{color:rgba(245,240,227,.85);border-bottom:1px solid transparent;padding-bottom:1px;}
.crumbline a:hover{border-color:currentColor;}

/* ---------- お問い合わせ（トップページのボタン誘導） ---------- */
.contact-teaser{max-width:620px;margin:0 auto;text-align:center;}
.contact-teaser .btn{
  display:inline-flex;align-items:center;gap:.5em;
  margin-top:26px;
  padding:.85em 2.3em;
  border-radius:999px;
  background:linear-gradient(120deg, var(--gold), var(--gold-soft));
  color:var(--night-deep);
  font-weight:700;letter-spacing:.04em;font-size:.92rem;
  transition:filter .2s, transform .2s;
}
.contact-teaser .btn:hover{filter:brightness(1.06);transform:translateY(-1px);}

/* ---------- お問い合わせ（フォームページ） ---------- */
.contact-section{background:var(--paper);border-top:1px solid var(--washi-line);}
.contact-card{
  background:var(--washi);
  border:1px solid var(--washi-line);
  border-radius:4px;
  padding:36px 32px;
  max-width:640px;
  margin:0 auto;
}
.contact-card h5{
  font-family:var(--font-num);
  font-style:italic;
  letter-spacing:.1em;
  color:var(--hagi-a);
  font-size:.85rem;
  margin-bottom:8px;
  text-transform:uppercase;
}
.contact-card .desc{color:var(--ink-soft);font-size:.9rem;margin-bottom:26px;}
.contact-form{display:grid;gap:18px;}
.contact-form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden;}
.contact-form label{display:block;font-size:.82rem;letter-spacing:.04em;color:var(--ink-soft);margin-bottom:6px;}
.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea{
  width:100%;padding:.75em .9em;
  border:1px solid var(--washi-line);
  border-radius:3px;
  background:var(--paper);
  color:var(--ink);
  font:inherit;font-size:.94rem;
}
.contact-form input:focus,.contact-form textarea:focus{
  outline:2px solid var(--gold);outline-offset:1px;border-color:var(--gold);
}
.contact-form textarea{min-height:140px;resize:vertical;}
.contact-form button{
  justify-self:start;
  padding:.8em 2.2em;
  border:none;
  border-radius:999px;
  background:linear-gradient(120deg, var(--gold), var(--gold-soft));
  color:var(--night-deep);
  font-weight:700;letter-spacing:.04em;font-size:.9rem;
  cursor:pointer;
  transition:filter .2s, transform .2s;
}
.contact-form button:hover{filter:brightness(1.06);transform:translateY(-1px);}
.contact-form button:disabled{opacity:.6;cursor:default;}
.contact-status{min-height:1.4em;font-size:.86rem;margin:0;}
.contact-status.ok{color:#3f7d4f;}
.contact-status.err{color:var(--hagi-a);}
.contact-note{max-width:640px;margin:22px auto 0;color:var(--ink-soft);font-size:.82rem;text-align:center;}

/* ---------- フッター ---------- */
footer{
  background:var(--night);
  color:rgba(245,240,227,.6);
  padding-block:40px;
  font-size:.82rem;
}
footer .wrap{
  display:flex;flex-wrap:wrap;gap:16px;
  align-items:center;justify-content:space-between;
}
footer .brand{color:rgba(245,240,227,.85);font-size:.95rem;}
footer nav{display:flex;gap:1.4em;flex-wrap:wrap;}
footer nav a{color:rgba(245,240,227,.6);}
footer nav a:hover{color:var(--gold-soft);}

@media (max-width:640px){
  .site-header .wrap{flex-wrap:wrap;}
  .site-header nav{display:none;}
  section{padding-block:56px;}
  .concept .wrap{grid-template-columns:1fr;gap:32px;}
  .hero{padding-block:64px 72px;}
  .contact-card{padding:28px 22px;}
}