/* ============================================================
   QUOVE — 森の中の宿  |  style.css
   Palette:
     --paper   #F7F4EC  生成り（背景）
     --mist    #ECE7DA  霧（帯・罫線）
     --ink     #2B2B26  墨（本文）
     --forest  #2E4B3C  深緑（主アクセント）
     --pine    #1E332A  常磐（フッター・濃部）
     --brass   #B08D57  真鍮（金アクセント）
   ============================================================ */

:root{
  --paper:#F7F4EC;
  --mist:#ECE7DA;
  --ink:#2B2B26;
  --sub:#6b675c;
  --forest:#2E4B3C;
  --pine:#1E332A;
  --brass:#B08D57;
  --serif:"Hiragino Mincho ProN","Yu Mincho","YuMincho","Noto Serif JP","Songti TC","PMingLiU",Georgia,serif;
  --sans:"Hiragino Kaku Gothic ProN","Yu Gothic","YuGothic","Noto Sans JP","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;
  --maxw:1100px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--serif);
  background:var(--paper);
  color:var(--ink);
  line-height:2;
  letter-spacing:.04em;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--forest);text-decoration:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--brass);outline-offset:3px}
ul{list-style:none}

/* ---------- language switching (CSS-driven) ---------- */
html[data-lang="ja"] .t-en, html[data-lang="ja"] .t-zh,
html[data-lang="en"] .t-ja, html[data-lang="en"] .t-zh,
html[data-lang="zh"] .t-ja, html[data-lang="zh"] .t-en{display:none !important}
html[data-lang="en"] body{letter-spacing:.01em}

/* ---------- header ---------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;
  transition:background .35s,box-shadow .35s;
}
.site-header.scrolled{background:rgba(247,244,236,.94);box-shadow:0 1px 0 var(--mist)}
.brand img{width:52px;border-radius:10px;box-shadow:0 1px 6px rgba(0,0,0,.18)}
.header-right{display:flex;align-items:center;gap:18px}

.lang-switch{display:flex;gap:2px;font-family:var(--sans);font-size:12px}
.lang-switch button{
  border:1px solid transparent;background:none;cursor:pointer;
  padding:4px 8px;color:#e9e5d8;letter-spacing:.08em;font-size:12px;
}
.site-header.scrolled .lang-switch button{color:var(--sub)}
.lang-switch button[aria-pressed="true"]{border-color:var(--brass);color:var(--brass)}
.header-solid .lang-switch button{color:var(--sub)}

.nav-toggle{
  width:44px;height:44px;border:none;background:none;cursor:pointer;position:relative;
}
.nav-toggle span{
  position:absolute;left:10px;right:10px;height:1.5px;background:#f2efe6;transition:.3s;
}
.site-header.scrolled .nav-toggle span,.header-solid .nav-toggle span{background:var(--ink)}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:22px}
.nav-toggle span:nth-child(3){top:29px}
body.nav-open .nav-toggle span{background:#f2efe6}
body.nav-open .nav-toggle span:nth-child(1){top:22px;transform:rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){top:22px;transform:rotate(-45deg)}

.site-nav{
  position:fixed;inset:0;z-index:40;background:rgba(30,51,42,.97);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s;
}
body.nav-open .site-nav{opacity:1;visibility:visible}
.site-nav a{
  color:#f2efe6;font-size:20px;letter-spacing:.2em;padding:12px 20px;display:block;text-align:center;
}
.site-nav a small{display:block;font-family:var(--sans);font-size:10px;letter-spacing:.3em;color:var(--brass)}
.site-nav .nav-book{margin-top:22px;border:1px solid var(--brass);padding:12px 44px;color:var(--brass)}

/* solid header for subpages */
.header-solid{background:var(--paper);box-shadow:0 1px 0 var(--mist);position:sticky}


/* ---------- hero (top page) ---------- */
.hero{
  position:relative;height:100svh;min-height:560px;
  background:var(--pine) url("../image/hero.jpg") center/cover no-repeat;
  display:flex;align-items:center;justify-content:center;
}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,30,25,.35),rgba(20,30,25,.05) 40%,rgba(20,30,25,.45))}


.hero-tagline{
  position:absolute;z-index:1;right:clamp(18px,6vw,90px);top:50%;transform:translateY(-50%);
  writing-mode:vertical-rl;color:#f2efe6;font-size:clamp(18px,2.4vw,26px);
  letter-spacing:.42em;line-height:1.9;text-shadow:0 0 22px rgba(0,0,0,.45);
}
.hero-tagline::after{content:"";display:block;width:1px;height:74px;background:var(--brass);margin:26px auto 0}
html[data-lang="en"] .hero-tagline,html[data-lang="zh"] .hero-tagline{
  writing-mode:horizontal-tb;right:auto;left:50%;top:auto;bottom:12vh;transform:translateX(-50%);
  letter-spacing:.14em;font-size:clamp(14px,2vw,20px);white-space:normal;width:min(86vw,640px);text-align:center;
}
html[data-lang="en"] .hero-tagline::after,html[data-lang="zh"] .hero-tagline::after{display:none}
.hero-scroll{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:1;
  color:#d8d2c0;font-family:var(--sans);font-size:10px;letter-spacing:.4em;text-align:center;
}
.hero-scroll::after{content:"";display:block;width:1px;height:44px;margin:8px auto 0;background:linear-gradient(#d8d2c0,transparent)}

/* ---------- common section framing ---------- */
main{overflow-x:clip}
.section{padding:clamp(70px,10vw,130px) 24px}
.section-inner{max-width:var(--maxw);margin:0 auto}
.eyebrow{
  font-family:var(--sans);font-size:11px;letter-spacing:.5em;color:var(--brass);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::after{content:"";display:block;width:44px;height:1px;background:var(--brass);margin-top:10px}
h2.sec-title{font-size:clamp(24px,3.4vw,34px);font-weight:600;letter-spacing:.14em;line-height:1.7;color:var(--pine)}
.lead{margin-top:26px;max-width:640px;color:var(--ink)}
.center{text-align:center}
.center .eyebrow::after{margin-left:auto;margin-right:auto}
.center .lead{margin-left:auto;margin-right:auto}

/* alternating photo/text rows */
.feature{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(28px,5vw,70px);align-items:center;max-width:var(--maxw);margin:0 auto}
.feature + .feature{margin-top:clamp(70px,9vw,120px)}
.feature.rev .feature-img{order:2}
.feature-img{position:relative}
.feature-img img{aspect-ratio:4/3;object-fit:cover;width:100%}
.feature-img::before{
  content:"";position:absolute;inset:14px -14px -14px 14px;border:1px solid var(--brass);
  z-index:-1;opacity:.55;
}
.feature.rev .feature-img::before{inset:14px 14px -14px -14px}
.feature-body .lead{margin-top:18px}
.more{
  display:inline-block;margin-top:30px;font-family:var(--sans);font-size:12px;letter-spacing:.34em;
  color:var(--pine);border-bottom:1px solid var(--brass);padding:0 4px 8px;transition:.25s;
}
.more:hover{color:var(--brass);letter-spacing:.4em}

.band{background:var(--mist)}
.band-dark{background:var(--pine);color:#efece1}
.band-dark h2.sec-title{color:#f5f2e8}
.band-dark .lead{color:#d9d4c4}

/* booking CTA */
.book-cta{text-align:center}
.btn-book{
  display:inline-block;margin-top:34px;padding:18px 64px;border:1px solid var(--brass);
  color:var(--brass);font-family:var(--sans);letter-spacing:.3em;font-size:14px;transition:.3s;
}
.btn-book:hover{background:var(--brass);color:var(--pine)}

/* ---------- footer ---------- */
.site-footer{background:var(--pine);color:#cfc9b8;padding:70px 24px 34px;text-align:center}
.site-footer .flogo{width:104px;margin:0 auto 26px;border-radius:14px}
.footer-nav{display:flex;flex-wrap:wrap;justify-content:center;gap:8px 30px;font-family:var(--sans);font-size:12px;letter-spacing:.18em;margin-bottom:30px}
.footer-nav a{color:#cfc9b8}
.footer-nav a:hover{color:var(--brass)}
.f-addr{font-size:13px;line-height:2.2}
.f-copy{margin-top:34px;font-family:var(--sans);font-size:10px;letter-spacing:.22em;color:#8f9483}

/* ---------- subpage hero ---------- */
.page-hero{background:var(--pine);color:#f2efe6;padding:120px 24px 64px;text-align:center}
.page-hero .eyebrow{color:var(--brass)}
.page-hero .eyebrow::after{margin:10px auto 0}
.page-hero h1{font-size:clamp(26px,4vw,38px);letter-spacing:.2em;font-weight:600}
.page-hero p{margin-top:16px;color:#d9d4c4;font-size:14px}

/* ---------- facilities cards ---------- */
.fac-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(30px,4vw,54px);max-width:var(--maxw);margin:0 auto}
.fac-card img{aspect-ratio:16/10;object-fit:cover;width:100%}
.fac-card .fac-en{font-family:var(--sans);font-size:10px;letter-spacing:.44em;color:var(--brass);margin:20px 0 6px}
.fac-card h3{font-size:20px;letter-spacing:.12em;color:var(--pine);font-weight:600}
.fac-card p{margin-top:10px;font-size:14.5px;color:var(--ink)}
.fac-note{font-family:var(--sans);font-size:12px;color:var(--sub);margin-top:8px}

/* ---------- manual ---------- */
.manual-wrap{max-width:900px;margin:0 auto}
.m-item{border-bottom:1px solid var(--mist)}
.m-item:first-child{border-top:1px solid var(--mist)}
.m-item summary{
  cursor:pointer;list-style:none;display:flex;align-items:baseline;gap:20px;
  padding:24px 8px;font-size:17px;letter-spacing:.1em;color:var(--pine);font-weight:600;
}
.m-item summary::-webkit-details-marker{display:none}
.m-item summary::after{content:"＋";margin-left:auto;color:var(--brass);font-family:var(--sans);flex-shrink:0}
.m-item[open] summary::after{content:"－"}
.m-item .m-en{font-family:var(--sans);font-size:10px;letter-spacing:.3em;color:var(--brass);min-width:105px;flex-shrink:0}
.m-body{padding:0 8px 30px;font-size:15px}
.m-body p+p{margin-top:12px}
.m-body ul{margin-top:8px}
.m-body ul li{padding-left:1.2em;text-indent:-1.2em;margin-bottom:6px}
.m-body ul li::before{content:"◆";color:var(--brass);font-size:10px;margin-right:.6em}
.m-body ol{margin:8px 0 0 1.4em}
.m-body ol li{margin-bottom:8px}
.m-strong{color:#a1452e;font-weight:600}
.m-kv{font-family:var(--sans);font-size:14px;background:#fff;border:1px solid var(--mist);padding:14px 18px;margin-top:12px;line-height:1.9}
.m-sec-head{margin:70px 0 26px}
.m-sec-head:first-child{margin-top:0}

/* ---------- access ---------- */
.acc-addr{max-width:760px;margin:0 auto;text-align:center}
.acc-addr .m-kv{display:inline-block;text-align:left}
.map-frame{max-width:900px;margin:40px auto 0}
.map-frame img{border:1px solid var(--mist)}
.route{max-width:760px;margin:0 auto}
.route-step{margin-top:54px}
.route-step .step-no{
  font-family:var(--sans);font-size:11px;letter-spacing:.4em;color:var(--brass);margin-bottom:10px;
}
.route-step .step-no::before{content:"";display:inline-block;width:26px;height:1px;background:var(--brass);vertical-align:middle;margin-right:12px}
.route-step p{margin-bottom:14px;font-size:15.5px}
.route-step img{border:1px solid var(--mist)}
.btn-map{
  display:inline-block;margin-top:20px;padding:13px 40px;border:1px solid var(--forest);
  color:var(--forest);font-family:var(--sans);font-size:13px;letter-spacing:.2em;transition:.25s;
}
.btn-map:hover{background:var(--forest);color:#f2efe6}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- responsive ---------- */
@media (max-width:820px){
  body{font-size:15px}
  .feature{grid-template-columns:1fr}
  .feature.rev .feature-img{order:0}
  .fac-grid{grid-template-columns:1fr}
  .hero-tagline{right:16px;font-size:17px;letter-spacing:.34em}
  .m-item summary{flex-wrap:wrap;gap:6px 14px}
  .brand img{width:44px}
}

/* ---------- PDF download button ---------- */
.btn-pdf{
  display:inline-flex;align-items:center;gap:12px;margin-top:26px;
  padding:14px 34px;background:var(--brass);color:var(--pine);
  font-family:var(--sans);font-size:13.5px;letter-spacing:.16em;font-weight:600;
  border-radius:2px;transition:.25s;
}
.btn-pdf:hover{background:#c9a468;transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.25)}
.btn-pdf:active{transform:translateY(0)}
.pdf-ic{
  display:inline-flex;align-items:center;justify-content:center;
  width:22px;height:22px;border:1.5px solid var(--pine);border-radius:50%;font-size:12px;
}

/* ---------- manual chip nav (sticky) ---------- */
.chip-nav{
  position:sticky;top:0;z-index:30;display:flex;gap:8px;overflow-x:auto;
  padding:12px clamp(16px,4vw,40px);background:rgba(247,244,236,.95);
  border-bottom:1px solid var(--mist);-webkit-overflow-scrolling:touch;scrollbar-width:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip-nav a{
  flex-shrink:0;padding:8px 18px;border:1px solid var(--mist);border-radius:999px;
  font-family:var(--sans);font-size:12.5px;letter-spacing:.08em;color:var(--pine);
  background:#fff;transition:.2s;
}
.chip-nav a:hover{border-color:var(--brass);color:var(--brass)}
.chip-nav a:active{background:var(--mist)}
.m-sec-head{scroll-margin-top:76px}

/* ---------- accordion polish ---------- */
.m-item{transition:background .25s}
.m-item summary{transition:color .2s;-webkit-tap-highlight-color:transparent}
.m-item summary:hover{color:var(--brass)}
.m-item summary::after{transition:transform .25s;font-size:15px}
.m-item[open]{background:rgba(255,255,255,.55)}
.m-item[open] summary::after{transform:rotate(180deg)}
.m-body{animation:mopen .35s ease}
@keyframes mopen{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;right:18px;bottom:18px;z-index:45;width:46px;height:46px;
  border:1px solid var(--brass);border-radius:50%;background:rgba(30,51,42,.92);
  color:var(--brass);font-size:17px;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.3s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--brass);color:var(--pine)}

/* ---------- interaction polish ---------- */
.btn-book:active,.btn-map:active{transform:scale(.98)}
.lang-switch button{min-height:34px;transition:.2s}
.fac-card img,.feature-img img{transition:transform .6s ease,filter .6s ease}
.fac-card:hover img{transform:scale(1.02)}
@media (prefers-reduced-motion: reduce){
  .m-body{animation:none}
  .fac-card:hover img,.feature-img img{transition:none;transform:none}
  .to-top{transition:opacity .01s}
}

/* ============================================================
   RICH THEME — index / facilities のみ（manual / access は単色維持）
   ============================================================ */
body.rich{
  background:
    url("../image/texture.svg") repeat,
    radial-gradient(1400px 700px at 100% 0%, rgba(176,141,87,.07), transparent 55%),
    linear-gradient(180deg,#FAF7F0 0%,#F5F1E4 45%,#EDE6D2 100%);
}

/* hero: 深い森のヴィネット + 下方から真鍮の残光 */
.rich .hero::after{
  background:
    radial-gradient(120% 68% at 50% 104%, rgba(176,141,87,.20), transparent 58%),
    radial-gradient(90% 60% at 50% -10%, rgba(10,18,14,.55), transparent 60%),
    linear-gradient(180deg, rgba(14,24,19,.48), rgba(14,24,19,.05) 42%, rgba(10,18,14,.6));
}

/* 明るい帯: 斜光の入った生成りグラデ + 金の hairline */
.rich .band{
  position:relative;
  background:
    url("../image/texture.svg") repeat,
    radial-gradient(1100px 480px at 88% 0%, rgba(176,141,87,.12), transparent 60%),
    radial-gradient(900px 460px at 0% 100%, rgba(46,75,60,.08), transparent 60%),
    linear-gradient(170deg,#F1ECDC 0%,#EAE3CF 60%,#E4DCC5 100%);
}
.rich .band::before,.rich .band-dark::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 8%,rgba(176,141,87,.65) 50%,transparent 92%);
}

/* 濃い帯: 常磐のディープグラデ + 真鍮のグロー */
.rich .band-dark{
  position:relative;
  background:
    url("../image/texture.svg") repeat,
    radial-gradient(820px 400px at 12% 0%, rgba(176,141,87,.20), transparent 60%),
    radial-gradient(1100px 560px at 95% 110%, rgba(58,94,75,.45), transparent 65%),
    linear-gradient(160deg,#274537 0%,#1E332A 48%,#12211B 100%);
}

/* facilities のページヒーローも同トーンに */
.rich .page-hero{
  position:relative;
  background:
    radial-gradient(760px 380px at 85% -10%, rgba(176,141,87,.22), transparent 60%),
    linear-gradient(160deg,#274537 0%,#1E332A 55%,#15261F 100%);
}
.rich .page-hero::after{
  content:"";position:absolute;bottom:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent 8%,rgba(176,141,87,.55) 50%,transparent 92%);
}

/* 写真の額装に淡い金のグロー */
.rich .feature-img img{box-shadow:0 18px 50px rgba(20,35,28,.22)}
.rich .fac-card img{box-shadow:0 12px 36px rgba(20,35,28,.16);border-radius:2px}

/* CTAボタン: 真鍮のグラデ + 上品な光沢 */
.rich .btn-book{
  border:none;color:#1E332A;font-weight:600;
  background:linear-gradient(165deg,#C9A468 0%,#B08D57 55%,#9A7847 100%);
  box-shadow:0 8px 26px rgba(176,141,87,.35), inset 0 1px 0 rgba(255,255,255,.35);
}
.rich .btn-book:hover{
  background:linear-gradient(165deg,#D4B278 0%,#BC9962 55%,#A5824F 100%);
  transform:translateY(-2px);box-shadow:0 12px 32px rgba(176,141,87,.45), inset 0 1px 0 rgba(255,255,255,.4);
}

/* フッター: 夜の森へ沈むグラデ */
.rich .site-footer{
  background:
    radial-gradient(900px 420px at 50% 0%, rgba(46,75,60,.5), transparent 65%),
    linear-gradient(180deg,#1E332A 0%,#12211B 60%,#0C1712 100%);
  border-top:1px solid rgba(176,141,87,.3);
}

/* ---------- 改行・組版の修正 ---------- */
/* 長文リードは左揃え（中央揃えの孤立行「ぞ。」対策）。ブロック自体は中央配置を維持 */
.center .lead{text-align:left}
/* 予約CTAの1行リードだけは中央揃えを維持 */
.book-cta .lead{text-align:center}
/* 見出しは行長バランス改行（対応ブラウザのみ・非対応でも無害） */
h1,h2.sec-title{text-wrap:balance}
/* SSID等の長い英数字がはみ出さないように */
.m-kv{overflow-wrap:anywhere}
/* 狭幅でのボタンはみ出し防止 */
@media (max-width:400px){
  .btn-book{padding:16px 36px;letter-spacing:.2em}
  .btn-pdf{padding:13px 24px}
}

/* ---------- gallery ---------- */
.gallery-band{padding-bottom:clamp(70px,10vw,130px)}
.gal-grid{
  max-width:var(--maxw);margin:44px auto 0;display:grid;gap:10px;
  grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;grid-auto-flow:dense;
}
.gal-grid a{display:block;overflow:hidden;border-radius:2px}
.gal-grid a.tall{grid-row:span 2}
.gal-grid img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.gal-grid a:hover img{transform:scale(1.04)}
@media (max-width:820px){
  .gal-grid{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px}
}

/* ---------- floor plan ---------- */
.madori{max-width:760px;margin:40px auto 0;background:#fff;padding:18px;border:1px solid var(--mist)}
.madori img{margin:0 auto}

/* ---------- hero 3枚スライドショー（昼→夜→外観） ---------- */
.hero-slides{position:absolute;inset:0;overflow:hidden}
.hero-slides .slide{
  position:absolute;inset:0;background-position:center;background-size:cover;
  opacity:0;transition:opacity 1.1s ease;
}
.hero-slides .slide.active{opacity:1}
.hero-slides .s1{background-image:url("../image/hero.jpg")}
.hero-slides .s2{background-image:url("../image/hero2.jpg")}
.hero-slides .s3{background-image:url("../image/hero3.jpg")}
.hero-slides .s4{background-image:url("../image/hero4.jpg")}
.hero-slides .s5{background-image:url("../image/hero5.jpg")}
.hero-slides .s6{background-image:url("../image/hero6.jpg")}
.hero-slides .s7{background-image:url("../image/hero7.jpg")}
@media (prefers-reduced-motion: reduce){
  .hero-slides .slide{transition:none}
}

/* 敷地図＋間取りの2枚積み */
.madori + .madori{margin-top:20px}

/* ---------- 語中折返し防止フレーズ ---------- */
.nw{display:inline-block}

/* ---------- マニュアル見出し: 英ラベルを上段に統一・＋は右端固定 ---------- */
.m-item summary{flex-wrap:wrap;gap:4px 0;position:relative;padding-right:40px}
.m-item .m-en{flex-basis:100%;min-width:0}
.m-item summary::after{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);margin-left:0;
}
.m-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}

/* ---------- インラインstyle代替クラス（CSP: style-src 'self' 準拠） ---------- */
.m-flat{padding-top:0}
.eyebrow-inline{display:inline-block}
.acc-note{margin-top:22px;font-size:14px}
.route-head{margin-bottom:10px}