@charset "UTF-8";
/* ==========================================================================
   lettet mitte — base.css
   コンセプト：誓いのコトバが輪になって薬指を包む
   署名要素：ロゴの「一本線」＝コトバの線。マスタードの雫。
   ========================================================================== */

:root{
  --mustard:    #D9A62E;
  --mustard-dk: #B8860B;
  --ink:        #2A2A28;
  --ink-soft:   #77736B;
  --paper:      #F7F5F0;
  --cream:      #EFEBE2;
  --card:       #FFFFFF;
  --line:       #E4DFD4;

  --serif-en: 'Cormorant Garamond', serif;
  --serif-jp: 'Noto Serif JP', serif;
  --mono:     'Courier Prime', 'Courier New', monospace;

  --maxw: 1120px;
  --sec-pad: 130px;
  --sec-pad-sp: 80px;
  --ease: cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);
  font-family:var(--serif-jp);font-weight:400;line-height:2;
  font-size:15px;letter-spacing:.05em;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:opacity .35s var(--ease)}
a:hover{opacity:.65}
a:focus-visible,button:focus-visible{outline:2px solid var(--mustard-dk);outline-offset:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.wrap--read{max-width:740px}

/* ========== 署名要素：コトバの線（横線） ========== */
.wordline{height:1px;max-width:180px;margin:0 auto;background:var(--ink);
  position:relative;opacity:0;transform:scaleX(0);transform-origin:left center;
  transition:opacity .8s var(--ease),transform .8s var(--ease)}
.wordline::after{content:"";position:absolute;right:-4px;top:-4px;
  width:9px;height:9px;border-radius:50% 50% 50% 0;background:var(--mustard);
  transform:rotate(45deg)}
.wordline.is-in{opacity:1;transform:scaleX(1)}

/* ========== 見出し ========== */
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.34em;text-transform:lowercase;
  color:var(--mustard-dk);display:flex;align-items:center;gap:14px;justify-content:center}
.h-sec{font-family:var(--serif-en);font-weight:400;
  font-size:clamp(28px,4.6vw,42px);line-height:1.35;letter-spacing:.05em;text-align:center}
.h-sec .jp{display:block;font-family:var(--serif-jp);font-size:.42em;
  letter-spacing:.22em;color:var(--ink-soft);margin-top:14px}
.t-lead{font-size:15.5px;line-height:2.3;text-align:center}

.reveal{opacity:0;transform:translateY(20px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ========== ヘッダー ========== */
.head{position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 32px;background:rgba(247,245,240,0);
  transition:background .4s var(--ease),padding .4s var(--ease),box-shadow .4s var(--ease)}
.head.is-scrolled{background:rgba(247,245,240,.94);backdrop-filter:blur(10px);
  padding:11px 32px;box-shadow:0 1px 0 var(--line)}
.head__logo{width:120px;transition:width .4s var(--ease)}
.head.is-scrolled .head__logo{width:102px}
.head__logo img{width:100%}
.gnav{display:flex;align-items:center;gap:30px}
.gnav a{font-family:var(--mono);font-size:13.5px;letter-spacing:.14em;position:relative}
.gnav a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:1px;
  background:var(--mustard-dk);transition:width .35s var(--ease)}
.gnav a:hover{opacity:1}
.gnav a:hover::after{width:100%}
.navtoggle{display:none;width:30px;height:22px;position:relative;background:none;border:0;cursor:pointer;z-index:110}
.navtoggle i{position:absolute;left:0;width:100%;height:1.5px;background:var(--ink);transition:.35s var(--ease)}
.navtoggle i:nth-child(1){top:0}.navtoggle i:nth-child(2){top:10px}.navtoggle i:nth-child(3){top:20px}
.navtoggle.is-open i:nth-child(1){top:10px;transform:rotate(45deg)}
.navtoggle.is-open i:nth-child(2){opacity:0}
.navtoggle.is-open i:nth-child(3){top:10px;transform:rotate(-45deg)}

/* ========== ヒーロー ========== */
.hero{position:relative;min-height:100vh;display:flex;align-items:flex-end;
  justify-content:center;text-align:center;overflow:hidden;padding-bottom:110px}
.hero__bg{position:absolute;inset:0}
.hero__bg img{width:100%;height:100%;object-fit:cover}
.hero__veil{position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(247,245,240,0) 0%,rgba(247,245,240,0) 60%,rgba(42,42,40,.32) 100%)}
.hero__inner{position:relative;z-index:2;padding:0 24px}
.hero__copy{font-family:var(--serif-jp);font-weight:300;
  font-size:clamp(15px,2.3vw,19px);letter-spacing:.26em;line-height:2.5;
  color:#fff;text-shadow:0 1px 14px rgba(42,42,40,.6);
  opacity:0;animation:heroin 1.8s var(--ease) .5s forwards}
@keyframes heroin{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.hero__scrolldown{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);z-index:3;
  font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:#fff;writing-mode:vertical-rl}
.hero__scrolldown::after{content:"";display:block;width:1px;height:40px;margin:10px auto 0;
  background:linear-gradient(#fff,transparent);animation:scdrop 2s var(--ease) infinite}
@keyframes scdrop{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}
  50.1%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* ========== セクション ========== */
.section{padding:var(--sec-pad) 0}
.section__head{text-align:center;margin-bottom:64px}
.section__head .h-sec{margin-top:20px}

/* ========== コンセプト詩 ========== */
.concept__poem{text-align:center;font-family:var(--serif-jp);font-weight:300;
  font-size:clamp(16px,2.4vw,20px);line-height:3;letter-spacing:.16em}

/* ========== 商品カード ========== */
.rings{display:grid;gap:34px 26px}
.ringcard{background:var(--card);border-radius:18px;overflow:hidden;display:block;
  box-shadow:0 8px 30px rgba(120,105,60,.08);
  transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.ringcard:hover{transform:translateY(-6px);opacity:1;box-shadow:0 18px 46px rgba(120,105,60,.15)}
.ringcard__media{position:relative;aspect-ratio:4/3;overflow:hidden;background:#fff;display:block}
.ringcard__media img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease)}
.ringcard:hover .ringcard__media img{transform:scale(1.05)}
.ringcard__no{position:absolute;top:12px;left:14px;font-family:var(--mono);font-size:11.5px;
  letter-spacing:.16em;color:var(--mustard-dk);background:rgba(255,255,255,.88);
  padding:2px 11px;border-radius:16px;backdrop-filter:blur(4px);
  transition:background .4s var(--ease),color .4s var(--ease)}
.ringcard:hover .ringcard__no{background:var(--mustard);color:#fff}
.ringcard__body{padding:22px 24px 26px}
.ringcard__en{font-family:var(--serif-en);font-size:23px;letter-spacing:.04em;line-height:1.2}
.ringcard__jp{font-family:var(--mono);font-size:11px;letter-spacing:.16em;color:var(--ink-soft);margin-top:5px}
.ringcard__mean{display:inline-block;margin-top:10px;font-size:12px;letter-spacing:.14em;
  color:var(--mustard-dk);border:1px solid var(--mustard);border-radius:14px;padding:1px 12px}
.ringcard__more{margin-top:16px;display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--mustard-dk)}
.ringcard__more::after{content:"→";transition:transform .35s var(--ease)}
.ringcard:hover .ringcard__more::after{transform:translateX(5px)}

/* ========== ボタン ========== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--mono);font-size:13.5px;letter-spacing:.16em;
  padding:15px 42px;border-radius:36px;position:relative;overflow:hidden;
  background:var(--ink);color:#fff;border:1px solid var(--ink);
  transition:background .4s var(--ease),color .4s var(--ease)}
.btn::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.18),transparent 55%);
  opacity:0;transition:opacity .4s var(--ease)}
.btn:hover{opacity:1;background:var(--mustard-dk);border-color:var(--mustard-dk)}
.btn:hover::after{opacity:1}
.btn--line{background:transparent;color:var(--ink)}
.btn--line:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.center{text-align:center}
.mt-cta{margin-top:56px}

/* ========== 詳細ページ ========== */
.detail{padding-top:118px}
.detail__hero{display:grid;gap:52px;align-items:start;margin-bottom:90px}
.detail__gallery{border-radius:18px;overflow:hidden;background:#fff;
  box-shadow:0 10px 38px rgba(120,105,60,.1)}
.detail__gallery img{width:100%;aspect-ratio:16/10;object-fit:cover}
.detail__thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}
.detail__thumb{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;
  cursor:pointer;padding:0;transition:border-color .3s var(--ease)}
.detail__thumb.on{border-color:var(--mustard)}
.detail__thumb img{aspect-ratio:1;object-fit:cover;width:100%}
.detail__no{font-family:var(--mono);color:var(--mustard-dk);letter-spacing:.18em;font-size:13px}
.detail__en{font-family:var(--serif-en);font-size:clamp(34px,5vw,50px);line-height:1.2;margin:10px 0 4px}
.detail__jp{font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--ink-soft)}
.detail__mean{display:inline-block;margin-top:14px;font-size:13px;letter-spacing:.16em;
  color:var(--mustard-dk);border:1px solid var(--mustard);border-radius:16px;padding:3px 16px}
.specgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:26px}
.specgrid__item{background:var(--card);padding:15px 17px}
.specgrid__label{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;color:var(--mustard-dk);margin-bottom:5px}
.specgrid__value{font-size:13px;line-height:1.8}
.ptable{width:100%;border-collapse:collapse;margin-top:14px;font-size:13.5px}
.ptable caption{font-family:var(--serif-en);font-size:16px;letter-spacing:.16em;
  color:var(--mustard-dk);text-align:left;padding-bottom:10px}
.ptable th,.ptable td{padding:10px 13px;text-align:left;border-bottom:1px solid var(--line);line-height:1.6}
.ptable thead th{font-weight:500;font-size:11.5px;letter-spacing:.06em;color:var(--ink-soft);
  border-bottom:1.5px solid var(--mustard)}
.ptable td:nth-child(3),.ptable td:nth-child(4){font-feature-settings:"tnum";white-space:nowrap}
.ptable .hinban{font-family:var(--mono);letter-spacing:.05em;color:var(--mustard-dk)}
.ptable__note{margin-top:10px;font-size:12px;line-height:1.9;color:var(--ink-soft)}
.detail__nav{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:76px 0 0;padding-top:36px}
.detail__navlink{display:flex;flex-direction:column;gap:5px;text-align:center;flex:1}
.detail__navlink--prev{text-align:left}
.detail__navlink--next{text-align:right}
.detail__navlabel{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--mustard-dk)}
.detail__navname{font-family:var(--serif-en);font-size:17px}

/* ========== アレンジ・保証 ========== */
.arrange{background:var(--cream)}
.arrange__grid{display:grid;gap:22px;margin-top:46px}
.arrange__card{background:var(--card);border-radius:16px;padding:28px 26px;
  box-shadow:0 6px 20px rgba(120,105,60,.06)}
.arrange__title{font-family:var(--mono);font-size:13px;letter-spacing:.12em;color:var(--mustard-dk);margin-bottom:6px}
.arrange__jp{font-size:15px;font-weight:500;margin-bottom:13px}
.arrange__body{font-size:13px;line-height:2}
.arrange__price{margin-top:11px;font-size:12.5px;line-height:2;color:var(--ink-soft)}
.warranty{max-width:740px;margin:60px auto 0;text-align:center;
  border:1.5px dashed var(--mustard);border-radius:18px;padding:38px 34px;background:var(--card)}
.warranty__title{font-family:var(--serif-en);font-size:20px;letter-spacing:.2em;color:var(--mustard-dk)}
.warranty__body{margin-top:15px;font-size:13.5px;line-height:2.2}
.delivery-note{margin-top:32px;text-align:center;font-size:12.5px;color:var(--ink-soft);letter-spacing:.05em}

/* ========== フッター ========== */
.footer{background:var(--ink);color:#fff;padding:74px 0 38px}
.footer__logo{width:170px;margin:0 auto 28px}
.footer__logo img{width:100%}
.footer__nav{display:flex;justify-content:center;gap:28px;flex-wrap:wrap;margin-bottom:36px}
.footer__nav a{font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;color:rgba(255,255,255,.85)}
.footer__copy{text-align:center;font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;color:rgba(255,255,255,.5)}

@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal,.wordline{opacity:1!important;transform:none!important}
}


/* ========== 店舗一覧・詳細 ========== */
.areanav{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:52px}
.areanav a{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;padding:9px 20px;border-radius:26px;
  border:1px solid var(--mustard);color:var(--mustard-dk);background:var(--card);
  transition:background .35s var(--ease),color .35s var(--ease)}
.areanav a:hover{opacity:1;background:var(--mustard);color:#fff}
.shoparea{margin-bottom:52px}
.shoparea__label{font-family:var(--serif-en);font-size:18px;letter-spacing:.14em;
  color:var(--mustard-dk);margin-bottom:20px;padding-bottom:11px;border-bottom:1px solid var(--line)}
.shoplist{display:grid;gap:24px}
.shopcard{background:var(--card);border-radius:16px;overflow:hidden;
  box-shadow:0 6px 20px rgba(120,105,60,.07)}
.shopcard__media{display:block;aspect-ratio:4/3;overflow:hidden;background:#fff}
.shopcard__media img{width:100%;height:100%;object-fit:cover}
.shopcard__body{padding:19px 21px 23px}
.shopcard__name{font-size:16px;font-weight:500;letter-spacing:.05em;line-height:1.6}
.shopcard__name a{color:var(--ink)}
.shopcard__addr{margin-top:10px;font-size:13px;line-height:1.9;color:var(--ink-soft)}
.shopcard__tel{margin-top:5px;font-family:var(--mono);font-size:12.5px;color:var(--ink-soft)}
.shopcard__actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.shopcard__tel-btn{display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);
  font-size:12.5px;letter-spacing:.06em;color:#fff;background:var(--mustard-dk);
  border-radius:18px;padding:8px 17px;white-space:nowrap}
.shopcard__tel-btn:hover{opacity:1;background:var(--ink)}
.shopcard__detail-btn{display:inline-flex;align-items:center;font-family:var(--mono);
  font-size:12px;letter-spacing:.1em;color:var(--mustard-dk);
  border:1px solid var(--mustard);border-radius:18px;padding:7px 15px;white-space:nowrap}
.shopcard__detail-btn:hover{opacity:1;background:var(--mustard);color:#fff}
.bcrumb{font-family:var(--mono);font-size:11.5px;color:var(--ink-soft);display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.bcrumb a{color:var(--mustard-dk)}
.bcrumb em{font-style:normal}
.storedetail{display:grid;gap:38px;align-items:start}
.storedetail__media{border-radius:16px;overflow:hidden;box-shadow:0 10px 32px rgba(120,105,60,.11)}
.storedetail__media img{width:100%;height:100%;object-fit:cover}
.storedl{border-top:1px solid var(--line)}
.storedl__row{display:grid;grid-template-columns:94px 1fr;gap:14px;
  padding:14px 4px;border-bottom:1px solid var(--line);font-size:14px;line-height:1.9}
.storedl__row dt{font-family:var(--mono);color:var(--mustard-dk);font-size:11.5px;letter-spacing:.08em;padding-top:3px}
.storedl__row dd a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.storedetail__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.faqdl dt{font-weight:500;font-size:14.5px;margin-top:24px;padding-left:20px;position:relative}
.faqdl dt::before{content:"Q";position:absolute;left:0;top:0;font-family:var(--mono);color:var(--mustard-dk)}
.faqdl dd{margin-top:7px;font-size:13.5px;line-height:2;padding-left:20px;border-left:2px solid var(--cream)}

/* ===== Instagram導線：フッターリンク（既存フッター配色に合わせる） ===== */
.footer__sns{display:flex;justify-content:center;margin-bottom:32px}
.footer__sns-link{display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:rgba(255,255,255,.85);border:1px solid rgba(255,255,255,.28);
  border-radius:36px;padding:9px 20px;
  transition:background .35s var(--ease),border-color .35s var(--ease),color .35s var(--ease)}
.footer__sns-link:hover{background:var(--mustard-dk);border-color:var(--mustard-dk);color:#fff;opacity:1}
.footer__sns-link svg{flex-shrink:0}