/* =========================================================
   日光ヒストリア — 共通デザインシステム
   Color: 杉並木の森(shinrin) / 東照宮の金(kin) / 漆の朱(shu) / 苔の緑(sugi)
   Type:  見出し = Shippori Mincho(明朝) / 本文 = Noto Sans JP
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600;700;800&family=Noto+Sans+JP:wght@400;500;600;700&family=Cormorant+Garamond:ital,wght@0,500;1,500&display=swap');

:root{
  /* --- カラートークン（ライト = 生成りの紙面基調） --- */
  --ink:        #201a12;
  --ink-soft:   #4d4331;
  --washi:      #f6f0df;
  --washi-deep: #e9dfc2;
  --washi-line: #d4c39a;
  --paper:      #fbf6e8;

  --shinrin:      #16261c;  /* 杉並木の森 */
  --shinrin-deep: #0a130d;  /* もっとも暗い杉木立 */
  --shinrin-mid:  #223a2b;

  --kin:       #c8a133;  /* 東照宮の金彩 */
  --kin-soft:  #ddbf6e;

  --shu:       #a13b2a;  /* 社殿の漆・朱 */
  --shu-deep:  #772a1d;

  --sugi:      #3f6b52;  /* 杉・苔の緑 */
  --sugi-soft: #6a8f72;

  --surface:      var(--washi);
  --surface-card: var(--paper);
  --surface-deep: var(--washi-deep);
  --text:         var(--ink);
  --text-soft:    var(--ink-soft);
  --line:         var(--washi-line);
  --accent:       var(--shu);
  --accent-2:     var(--kin);
  --header-bg:    var(--shinrin);
  --header-fg:    var(--washi);

  --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;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --surface:      #10150f;
    --surface-card: #151b13;
    --surface-deep: #1a2318;
    --text:         #ece6d3;
    --text-soft:    #bcb494;
    --line:         #38412f;
    --accent:       #d98a6f;
    --accent-2:     #ddbf6e;
    --header-bg:    #080c07;
    --header-fg:    #ece6d3;
    --washi-line:   #38412f;
  }
}
:root[data-theme="dark"]{
  --surface:      #10150f;
  --surface-card: #151b13;
  --surface-deep: #1a2318;
  --text:         #ece6d3;
  --text-soft:    #bcb494;
  --line:         #38412f;
  --accent:       #d98a6f;
  --accent-2:     #ddbf6e;
  --header-bg:    #080c07;
  --header-fg:    #ece6d3;
  --washi-line:   #38412f;
}

*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--surface);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  padding-left:max(16px, env(safe-area-inset-left,0px));
  padding-right:max(16px, env(safe-area-inset-right,0px));
}
img{max-width:100%;}
[hidden]{display:none!important;}

h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--text);
  font-weight:700;
  line-height:1.4;
  text-wrap:balance;
  margin:0;
}
a{color:inherit;}
p{margin:0 0 1em;max-width:38em;}
::selection{background:var(--accent-2);color:var(--shinrin-deep);}

.eyebrow{
  display:inline-flex;align-items:center;gap:.6em;
  font-family:var(--font-body);
  font-size:.78rem;
  letter-spacing:.32em;
  font-weight:600;
  color:var(--accent);
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";width:1.4em;height:1px;background:var(--accent);display:inline-block;
}
.eyebrow.on-dark{color:var(--kin);}
.eyebrow.on-dark::before{background:var(--kin);}

/* ---------- レイアウト共通 ---------- */
.wrap{max-width:1080px;margin:0 auto;padding-inline:20px;}
.col{max-width:760px;margin:0 auto;padding-inline:20px;}

/* ---------- ヘッダー ---------- */
.site-header{
  position:sticky;top:env(safe-area-inset-top,0px);z-index:40;
  background:var(--header-bg);
  color:var(--header-fg);
  border-bottom:1px solid rgba(216,198,156,.16);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding-block:14px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--font-display);
  font-weight:700;font-size:1.05rem;letter-spacing:.04em;
  text-decoration:none;color:var(--header-fg);
  white-space:nowrap;
}
.brand .mon{width:30px;height:30px;flex:none;}
.brand small{display:block;font-family:var(--font-body);font-weight:500;font-size:.6rem;letter-spacing:.2em;color:var(--kin-soft);}

.nav-toggle-btn{display:none;}

.lang-switch{display:flex;gap:4px;margin-left:4px;flex:none;}
.lang-switch a{
  font-size:.7rem;letter-spacing:.04em;padding:5px 9px;border-radius:3px;
  text-decoration:none;color:var(--header-fg);opacity:.7;
  border:1px solid rgba(216,198,156,.28);white-space:nowrap;
}
.lang-switch a:hover{opacity:1;}
.lang-switch a.active{opacity:1;color:var(--kin);border-color:var(--kin);background:rgba(200,161,51,.12);}

.mainnav{display:flex;flex-direction:column;flex-wrap:wrap;gap:4px;justify-content:flex-end;align-items:flex-end;}
.mainnav .nav-row{display:flex;flex-wrap:wrap;gap:2px 4px;justify-content:flex-end;}
.mainnav a{
  font-size:.82rem;letter-spacing:.02em;padding:8px 10px;border-radius:3px;
  text-decoration:none;color:var(--header-fg);opacity:.82;white-space:nowrap;
}
.mainnav a:hover{opacity:1;background:rgba(216,198,156,.12);}
.mainnav a[aria-current="page"]{opacity:1;color:var(--kin);font-weight:600;}

@media (max-width:820px){
  .nav-toggle-btn{
    display:flex;align-items:center;justify-content:center;
    width:38px;height:38px;background:none;border:1px solid rgba(216,198,156,.3);
    border-radius:4px;cursor:pointer;
  }
  .nav-toggle-btn span, .nav-toggle-btn span::before, .nav-toggle-btn span::after{
    content:"";display:block;width:18px;height:2px;background:var(--header-fg);position:relative;
  }
  .nav-toggle-btn span::before{position:absolute;top:-6px;}
  .nav-toggle-btn span::after{position:absolute;top:6px;}
  .site-header .wrap{flex-wrap:wrap;padding-block:12px;}
  .mainnav{display:none;justify-content:flex-start;align-items:flex-start;gap:2px 6px;width:100%;order:3;}
  .wrap.nav-open .mainnav{display:flex;}
  .mainnav .nav-row{justify-content:flex-start;width:100%;}
  .mainnav a{padding:6px 8px;font-size:.78rem;}
}

/* ---------- トップページ：導入の二段組 ---------- */
.intro{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start;}
@media (max-width:820px){.intro{grid-template-columns:1fr;}}
.intro-art{width:100%;max-width:340px;margin-inline:auto;}

/* ---------- 波・霧の区切り線 ---------- */
.wave-divider{
  height:22px;width:100%;
  background-image:radial-gradient(circle at 10px 0, transparent 9px, var(--line) 9.5px, var(--line) 10.5px, transparent 11px);
  background-size:20px 20px;
  background-position:center top;
  opacity:.5;
}
.star-divider{
  height:26px;width:100%;position:relative;overflow:hidden;
  background:
    radial-gradient(1.6px 1.6px at 8% 40%, var(--kin) 100%, transparent),
    radial-gradient(1.2px 1.2px at 22% 70%, var(--kin-soft) 100%, transparent),
    radial-gradient(1.8px 1.8px at 38% 30%, var(--kin) 100%, transparent),
    radial-gradient(1.2px 1.2px at 55% 65%, var(--kin-soft) 100%, transparent),
    radial-gradient(1.6px 1.6px at 70% 35%, var(--kin) 100%, transparent),
    radial-gradient(1.2px 1.2px at 86% 60%, var(--kin-soft) 100%, transparent),
    radial-gradient(1.8px 1.8px at 96% 30%, var(--kin) 100%, transparent);
  opacity:.85;
}

/* ---------- ヒーロー ---------- */
.hero{
  position:relative;
  background:
    radial-gradient(ellipse 900px 500px at 82% -10%, rgba(200,161,51,.16), transparent 60%),
    linear-gradient(165deg, var(--shinrin-deep), var(--shinrin) 55%, var(--shinrin-mid));
  color:var(--washi);
  overflow:hidden;
}
.hero .wrap{
  padding-block:64px 56px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:36px;align-items:center;
}
@media (max-width:820px){ .hero .wrap{grid-template-columns:1fr;padding-block:44px 36px;} }

.hero .eyebrow{color:var(--kin);}
.hero .eyebrow::before{background:var(--kin);}
.hero h1{
  font-size:clamp(2rem, 4.4vw, 3.1rem);
  color:var(--washi);
  margin-top:.5em;
}
.hero .lede{
  color:#d9d0b0;font-size:1rem;line-height:1.95;margin-top:1em;max-width:34em;
}

.hero-illust{padding-block:0;border-top:none;}
.hero-illust-img{display:block;width:100%;height:auto;max-height:420px;object-fit:cover;}
.hero-illust-scrim{
  position:absolute;inset:0;
  background:linear-gradient(0deg, var(--shinrin-deep) 4%, rgba(10,19,13,.62) 42%, rgba(10,19,13,.1) 78%);
}
.hero.hero-illust{position:relative;}
.hero.hero-illust .wrap{position:relative;z-index:1;display:block;padding-block:0 40px;}
.hero.hero-illust .wrap > div{max-width:640px;padding-top:230px;}
@media (max-width:820px){ .hero.hero-illust .wrap > div{padding-top:170px;} }

/* ---------- フルワイド・ヒーロー ---------- */
.hero-full{background:var(--shinrin-deep);padding:0;}
.hero-full .hero-bg{
  position:absolute;inset:0;z-index:0;overflow:hidden;
}
.hero-full .hero-bg svg{display:block;width:100%;height:100%;}
.hero-full .wrap{
  position:relative;z-index:1;
  display:block;
  padding-block:88px 64px;
  min-height:560px;
  display:flex;align-items:flex-end;
}
.hero-full .wrap > div{max-width:640px;}
@media (max-width:820px){
  .hero-full .wrap{min-height:460px;padding-block:56px 40px;}
}
@media (max-width:520px){
  .hero-full .wrap{min-height:400px;padding-block:40px 32px;}
}

.crumbline{font-size:.78rem;color:#a89a76;letter-spacing:.06em;margin-bottom:8px;}
.crumbline a{text-decoration:none;border-bottom:1px solid rgba(168,154,118,.5);}

/* ---------- 写真カード ---------- */
.photo-card{
  background:var(--paper);border:1px solid var(--line);
  padding:8px 8px 12px;box-shadow:0 2px 12px rgba(0,0,0,.10);
}
.photo-card .ph-img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--surface-deep);}
.photo-card figcaption{
  font-size:.76rem;color:var(--text-soft);padding:10px 4px 0;letter-spacing:.02em;
  display:flex;justify-content:space-between;gap:8px;
}
.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-block:20px;}
@media (max-width:820px){.photo-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:520px){.photo-grid{grid-template-columns:1fr;}}

/* ---------- 人物カード ---------- */
.person{
  display:grid;grid-template-columns:auto 1fr;gap:18px;
  padding:24px;background:var(--surface-card);border:1px solid var(--line);
}
.person .mon{
  width:84px;height:84px;flex:none;border-radius:50%;
  background:var(--surface-deep);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
}
.person .mon svg{width:34px;height:34px;}
.person h3{font-size:1.18rem;}
.person .role{font-size:.8rem;color:var(--accent);letter-spacing:.05em;margin:.3em 0 .7em;}
.person p{font-size:.93rem;color:var(--text-soft);margin:0 0 1em;}
@media (max-width:520px){.person{grid-template-columns:1fr;}}

/* ---------- セクション共通 ---------- */
section{padding-block:56px;}
section + section{border-top:1px solid var(--line);}
.section-head{max-width:640px;margin-bottom:34px;}
.section-head h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-top:.45em;}
.section-head p{color:var(--text-soft);margin-top:.8em;}

/* ---------- カードグリッド ---------- */
.grid{display:grid;gap:22px;}
.grid.cols-2{grid-template-columns:repeat(2,1fr);}
.grid.cols-3{grid-template-columns:repeat(3,1fr);}
@media (max-width:820px){ .grid.cols-2, .grid.cols-3{grid-template-columns:1fr;} }

.card{
  background:var(--surface-card);
  border:1px solid var(--line);
  border-radius:2px;
  padding:26px 24px;
  position:relative;
}
.card::before{
  content:"";position:absolute;top:0;left:0;width:26px;height:3px;background:var(--accent);
}

/* ---------- ナビカード（トップページの入口） ---------- */
.grid.cols-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:900px){ .grid.cols-4{grid-template-columns:repeat(2,1fr);} }
@media (max-width:480px){ .grid.cols-4{grid-template-columns:1fr;} }

.room-grid .navcard:nth-child(1){--nc-color:#a13b2a;}
.room-grid .navcard:nth-child(2){--nc-color:#3f6b52;}
.room-grid .navcard:nth-child(3){--nc-color:#c8a133;}
.room-grid .navcard:nth-child(4){--nc-color:#4c6a86;}
.room-grid .navcard:nth-child(5){--nc-color:#8a5a3a;}
.room-grid .navcard:nth-child(6){--nc-color:#7a4d68;}
.room-grid .navcard:nth-child(7){--nc-color:#3f7d7a;}

.navcard{
  display:flex;flex-direction:column;gap:9px;
  background:var(--surface-card);border:1px solid var(--line);
  border-top:3px solid var(--nc-color, var(--accent));
  padding:18px 18px 16px;text-decoration:none;color:var(--text);
  position:relative;overflow:hidden;transition:transform .16s ease, box-shadow .16s ease;
}
.navcard:hover{transform:translateY(-3px);box-shadow:0 8px 18px rgba(20,14,6,.16);}
.navcard .nc-head{display:flex;align-items:center;gap:9px;}
.navcard .num{
  font-family:var(--font-num);font-size:.8rem;letter-spacing:.06em;color:var(--nc-color, var(--accent-2));
  font-weight:700;
}
.navcard h3{font-size:1.05rem;line-height:1.45;margin:0;}
.navcard p{
  color:var(--text-soft);font-size:.8rem;margin:0;max-width:none;line-height:1.65;
}
.navcard .icon{width:26px;height:26px;flex:none;}
.navcard .go{
  margin-top:auto;padding-top:2px;font-size:.72rem;letter-spacing:.05em;color:var(--nc-color, var(--accent));
  display:flex;align-items:center;gap:5px;
}

/* ---------- 印(はんこ)風の引用 ---------- */
.stamp-quote{
  display:flex;gap:20px;align-items:flex-start;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding-block:28px;margin-block:8px;
}
.stamp{
  flex:none;width:56px;height:56px;border-radius:6px;
  background:var(--shu);color:var(--washi);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-display);font-weight:700;font-size:1.1rem;
  writing-mode:vertical-rl;
}
.stamp-quote blockquote{margin:0;font-family:var(--font-display);font-size:1.15rem;line-height:1.85;}
.stamp-quote cite{display:block;margin-top:.6em;font-style:normal;font-size:.8rem;color:var(--text-soft);}

/* ---------- 年表 ---------- */
.timeline{border-left:2px solid var(--line);margin-left:8px;}
.tl-item{position:relative;padding:0 0 30px 26px;}
.tl-item::before{
  content:"";position:absolute;left:-7px;top:4px;width:12px;height:12px;border-radius:50%;
  background:var(--surface);border:2px solid var(--accent-2);
}
.tl-item .yr{
  font-family:var(--font-num);font-weight:700;color:var(--accent);
  font-size:1.05rem;font-variant-numeric:tabular-nums;
}
.tl-item h4{font-size:1.05rem;margin-top:.25em;}
.tl-item p{font-size:.9rem;color:var(--text-soft);margin-top:.4em;}

/* ---------- 情報ボックス（史実の注釈・諸説など） ---------- */
.note{
  background:var(--surface-deep);border-left:3px solid var(--accent-2);
  padding:18px 20px;font-size:.9rem;color:var(--text-soft);margin-block:1.4em;
}
.note strong{color:var(--text);}

.note.warn{border-left-color:var(--accent);}

/* ---------- リスト（見どころ・特産など） ---------- */
.taglist{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:1em 0;}
.taglist li{
  border:1px solid var(--line);padding:6px 14px;font-size:.84rem;border-radius:99px;color:var(--text-soft);
}

/* ---------- 祠アイコン付きカード ---------- */
.deity-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-block:20px;}
@media (max-width:640px){.deity-grid{grid-template-columns:1fr;}}
.deity-card{
  background:var(--surface-card);border:1px solid var(--line);
  padding:20px 20px 18px;display:flex;gap:14px;align-items:flex-start;
}
.deity-card .glyph{
  flex:none;width:40px;height:40px;border-radius:50%;
  background:var(--surface-deep);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
}
.deity-card .glyph svg{width:22px;height:22px;}
.deity-card h4{font-size:1rem;margin-bottom:.35em;}
.deity-card p{font-size:.86rem;color:var(--text-soft);margin:0;}

/* ---------- 比較テーブル風 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-block:20px;}
@media (max-width:640px){.compare{grid-template-columns:1fr;}}
.compare .side{background:var(--surface-card);border:1px solid var(--line);padding:20px 22px;}
.compare .side h4{font-size:.96rem;color:var(--accent);margin-bottom:.6em;}
.compare .side p{font-size:.88rem;color:var(--text-soft);margin:0;}

/* ---------- フッター ---------- */
.site-footer{
  background:var(--shinrin-deep);color:#c7c0a2;padding-block:40px 30px;margin-top:40px;
  padding-bottom:calc(30px + env(safe-area-inset-bottom,0px));
}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:28px 40px;justify-content:space-between;}
.site-footer h5{color:var(--washi);font-family:var(--font-body);font-size:.78rem;letter-spacing:.14em;margin-bottom:12px;}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:8px;}
.site-footer a{color:#c7c0a2;text-decoration:none;font-size:.86rem;}
.site-footer a:hover{color:var(--kin);}
.contact-teaser{display:flex;flex-direction:column;gap:10px;max-width:280px;}
.contact-teaser .txt h5{margin-bottom:6px;}
.contact-teaser .txt p{font-size:.82rem;color:#a89e7c;margin:0;}
.foot-note{width:100%;border-top:1px solid rgba(199,192,162,.16);margin-top:26px;padding-top:18px;font-size:.76rem;color:#8a8168;line-height:1.8;}

/* ---------- ユーティリティ ---------- */
.mt-lg{margin-top:2.2em;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:var(--washi);text-decoration:none;
  padding:11px 22px;font-size:.88rem;letter-spacing:.03em;border:1px solid var(--accent);
  border-radius:4px;
}
.btn.ghost{background:transparent;color:var(--header-fg);border-color:rgba(216,198,156,.5);}

:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px;}
@media (prefers-reduced-motion:reduce){ *{transition:none!important;animation:none!important;} }