/* ============================================================
   Reterra — バッグ修理リテラ
   モノクロ（白黒）／Noto Sans JP
   ============================================================ */

:root{
  --black:#0b0b0b;
  --ink:#111;
  --gray-9:#1a1a1a;
  --gray-7:#4a4a4a;
  --gray-5:#7a7a7a;
  --gray-3:#c9c9c9;
  --gray-1:#ededed;
  --paper:#f6f5f3;
  --white:#fff;
  --line:rgba(0,0,0,.12);
  --line-d:rgba(255,255,255,.18);
  --wrap:1160px;
  --pad:clamp(20px,5vw,64px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans JP",-apple-system,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;
  font-weight:400;
  color:var(--ink);
  background:var(--paper);
  line-height:1.9;
  letter-spacing:.04em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,video,iframe{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
h1,h2,h3,p,figure{margin:0}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--pad)}

/* ---------- タイポ共通 ---------- */
.label{
  font-size:11px;letter-spacing:.24em;font-weight:500;
  color:var(--gray-5);margin-bottom:22px;
}
.h2{
  font-size:clamp(28px,4.4vw,46px);
  font-weight:700;line-height:1.42;letter-spacing:.02em;
  margin-bottom:8px;
}
.body{
  font-size:15.5px;font-weight:300;line-height:2.05;
  color:var(--gray-7);margin-bottom:1.3em;max-width:44em;
}
.note{margin-top:40px;font-size:13px;color:var(--gray-5);font-weight:300}
.muted{color:var(--gray-5);font-size:13px}

/* ---------- ボタン ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:56px;padding:0 34px;
  font-size:14px;font-weight:500;letter-spacing:.08em;
  border:1px solid currentColor;border-radius:0;
  transition:background .35s var(--ease),color .35s var(--ease),opacity .3s;
  white-space:nowrap;
}
.btn--solid{background:var(--white);color:var(--black);border-color:var(--white)}
.btn--solid:hover{background:transparent;color:var(--white)}
.btn--ghost{background:transparent;color:var(--white)}
.btn--ghost:hover{background:var(--white);color:var(--black)}

/* ============================================================
   HEADER
   ============================================================ */
.header{
  position:fixed;inset:0 0 auto 0;z-index:100;
  transition:background .4s var(--ease),border-color .4s,color .4s;
  border-bottom:1px solid transparent;
  color:var(--white);
}
.header.is-stuck{
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(12px);
  border-bottom-color:var(--line);
  color:var(--ink);
}
.header__inner{
  max-width:var(--wrap);margin-inline:auto;padding:0 var(--pad);
  height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.logo{display:flex;flex-direction:column;line-height:1.25}
.logo__mark{font-size:22px;font-weight:700;letter-spacing:.14em}
.logo__sub{font-size:10px;letter-spacing:.2em;opacity:.72;font-weight:400}

.nav{display:flex;align-items:center;gap:34px}
.nav__list{display:flex;gap:30px}
.nav__list a{
  font-size:13px;font-weight:400;letter-spacing:.06em;
  position:relative;padding-bottom:4px;
}
.nav__list a::after{
  content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;
  background:currentColor;transform:scaleX(0);transform-origin:right;
  transition:transform .4s var(--ease);
}
.nav__list a:hover::after{transform:scaleX(1);transform-origin:left}
.nav__cta{
  font-size:12.5px;font-weight:500;letter-spacing:.06em;
  border:1px solid currentColor;padding:11px 20px;
  transition:background .35s var(--ease),color .35s var(--ease);
}
.header .nav__cta:hover{background:var(--white);color:var(--black)}
.header.is-stuck .nav__cta:hover{background:var(--black);color:var(--white)}

.burger{
  display:none;width:44px;height:44px;background:none;border:0;
  padding:0;cursor:pointer;color:inherit;
}
.burger span{
  display:block;width:24px;height:1px;background:currentColor;margin:6px auto;
  transition:transform .35s var(--ease),opacity .25s;
}
.burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative;min-height:100svh;
  display:flex;align-items:flex-end;
  color:var(--white);overflow:hidden;
  background:var(--black);
}
.hero__media{position:absolute;inset:0;z-index:0}
/* 動画はカラーのまま。白い文字を読ませるため、明るさを落としてから
   上に黒のグラデーション（scrim）を重ねている。明るい映像に差し替えたときは
   brightness の値を下げる。 */
.hero__video{
  width:100%;height:100%;object-fit:cover;
  filter:saturate(.92) contrast(1.02) brightness(.58);
}
.hero__scrim{
  position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(0,0,0,.62) 0%,rgba(0,0,0,.34) 35%,rgba(0,0,0,.82) 100%);
}
.hero__body{
  position:relative;z-index:1;
  width:100%;max-width:var(--wrap);margin-inline:auto;
  padding:0 var(--pad) clamp(84px,12vh,140px);
}
.hero__kicker{
  font-size:10.5px;letter-spacing:.28em;font-weight:500;
  opacity:.8;margin-bottom:26px;
}
/* 8文字の1行見出し「なんとかします。」が、どの画面幅でも1行で収まるサイズ。
   見出しを長い文言に変える場合は white-space:nowrap を外し、係数を下げること。 */
.hero__title{
  font-size:min(10.5vw,104px);
  font-weight:700;line-height:1.12;letter-spacing:.01em;
  white-space:nowrap;
  margin-bottom:28px;
}
.hero__lead{
  font-size:clamp(14px,1.6vw,17px);font-weight:300;line-height:2.05;
  opacity:.92;margin-bottom:42px;
}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px}
.hero__scroll{
  position:absolute;right:var(--pad);bottom:clamp(84px,12vh,140px);z-index:1;
  font-size:10px;letter-spacing:.24em;
  writing-mode:vertical-rl;opacity:.7;
}
.hero__scroll::after{
  content:"";display:block;width:1px;height:56px;margin:12px auto 0;
  background:currentColor;transform-origin:top;
  animation:scrollLine 2.4s var(--ease) infinite;
}
@keyframes scrollLine{
  0%{transform:scaleY(0)}45%{transform:scaleY(1)}
  55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}
}

/* ============================================================
   SECTION 共通
   ============================================================ */
.section{padding:clamp(88px,13vw,168px) 0}
.section--light{background:var(--paper);color:var(--ink)}
.section--dark{background:var(--black);color:var(--white)}
.section--dark .label{color:rgba(255,255,255,.55)}
.section--dark .body{color:rgba(255,255,255,.74)}
.section--dark .note{color:rgba(255,255,255,.5)}

.grid-2{
  display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1fr);
  gap:clamp(32px,6vw,90px);align-items:start;
}

/* ---------- SERVICE ---------- */
.cards{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:1px;background:var(--line-d);
  border:1px solid var(--line-d);margin-top:clamp(44px,6vw,72px);
}
.card{
  background:var(--black);padding:clamp(30px,4vw,52px);
  transition:background .45s var(--ease);
}
.card:hover{background:var(--gray-9)}
.card__no{font-size:11px;letter-spacing:.2em;color:rgba(255,255,255,.45);margin-bottom:22px}
.card__title{font-size:clamp(18px,2.2vw,22px);font-weight:500;letter-spacing:.06em;margin-bottom:14px}
.card__text{font-size:14px;font-weight:300;line-height:2;color:rgba(255,255,255,.7)}

/* ---------- FLOW ---------- */
.flow{
  margin-top:clamp(44px,6vw,72px);
  border-top:1px solid var(--line);
}
.flow__item{
  display:grid;grid-template-columns:96px minmax(0,1fr) minmax(0,1.5fr);
  gap:clamp(14px,3vw,40px);align-items:baseline;
  padding:clamp(24px,3.4vw,38px) 0;
  border-bottom:1px solid var(--line);
}
.flow__no{font-size:12px;letter-spacing:.2em;color:var(--gray-5)}
.flow__title{font-size:clamp(17px,2.2vw,21px);font-weight:500;letter-spacing:.06em}
.flow__text{font-size:14px;font-weight:300;line-height:2;color:var(--gray-7)}

/* ============================================================
   CTA
   ============================================================ */
.cta{
  position:relative;color:var(--white);background:var(--black);
  padding:clamp(96px,14vw,180px) 0;overflow:hidden;text-align:center;
}
.cta__media{position:absolute;inset:0;z-index:0}
.cta__video{width:100%;height:100%;object-fit:cover;filter:saturate(.92) brightness(.46)}
.cta__scrim{position:absolute;inset:0;background:rgba(0,0,0,.58)}
.cta__body{position:relative;z-index:1}
.cta__title{font-size:clamp(28px,5vw,52px);font-weight:700;line-height:1.4;margin-bottom:24px}
.cta__lead{font-size:15px;font-weight:300;line-height:2.05;opacity:.9;margin-bottom:40px}
.cta .hero__actions{justify-content:center}
.cta__tel{margin-top:32px;font-size:13.5px;letter-spacing:.08em;opacity:.85}
.cta__tel a{border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:2px}

/* ============================================================
   SHOP
   ============================================================ */
.body--lead{margin-top:18px}

.shop{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  column-gap:clamp(32px,5vw,72px);row-gap:clamp(22px,3vw,34px);
  align-items:start;
  margin-top:clamp(44px,6vw,72px);
  padding-top:clamp(30px,4vw,44px);
  border-top:1px solid var(--line);
}
.shop__head{grid-column:1/-1}
.shop__badge{
  font-size:11px;letter-spacing:.18em;color:var(--gray-5);margin-bottom:10px;
}
.shop__name{
  font-size:clamp(20px,2.6vw,26px);font-weight:500;letter-spacing:.08em;
}
.shop__info{border-top:1px solid var(--line)}
.shop__info > div{
  display:grid;grid-template-columns:106px minmax(0,1fr);
  gap:16px;padding:20px 0;border-bottom:1px solid var(--line);
}
.shop__info dt{font-size:12px;letter-spacing:.14em;color:var(--gray-5);padding-top:4px}
.shop__info dd{font-size:15px;font-weight:300;line-height:1.9}
.shop__info dd a{border-bottom:1px solid var(--gray-3)}
.shop__map{aspect-ratio:4/3;border:1px solid var(--line);background:var(--gray-1)}
.shop__map iframe{width:100%;height:100%;border:0;filter:grayscale(1) contrast(1.05)}

/* ---------- リンクリスト ---------- */
.linklist{margin-top:14px;border-top:1px solid var(--line-d)}
.linklist a{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:20px 0;border-bottom:1px solid var(--line-d);
  transition:padding-left .35s var(--ease),opacity .3s;
}
.linklist a:hover{padding-left:10px;opacity:.7}
.linklist span{font-size:15px;font-weight:400;letter-spacing:.04em}
.linklist em{font-style:normal;font-size:11.5px;letter-spacing:.08em;color:rgba(255,255,255,.5)}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{background:var(--black);color:var(--white);padding-top:clamp(72px,10vw,120px)}
.footer__inner{
  display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr) minmax(0,.7fr);
  gap:clamp(32px,5vw,64px);padding-bottom:clamp(56px,7vw,88px);
}
.footer .logo__mark{margin-bottom:20px}
.footer__addr{font-size:13px;font-weight:300;line-height:2.1;color:rgba(255,255,255,.66);margin-bottom:16px}
.footer__addr strong{font-weight:500;color:rgba(255,255,255,.9)}
.footer__addr a{border-bottom:1px solid rgba(255,255,255,.35)}
.footer__head{font-size:10.5px;letter-spacing:.24em;color:rgba(255,255,255,.45);margin-bottom:20px}
.footer__sns li,.footer__nav li{margin-bottom:13px}
.footer__sns a,.footer__nav a{
  font-size:13.5px;font-weight:300;color:rgba(255,255,255,.82);
  transition:color .3s,padding-left .35s var(--ease);
}
.footer__sns a:hover,.footer__nav a:hover{color:var(--white);padding-left:6px}
.footer__bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  border-top:1px solid var(--line-d);padding-top:26px;padding-bottom:34px;
  font-size:11.5px;letter-spacing:.12em;color:rgba(255,255,255,.45);
}

/* ============================================================
   REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:960px){
  .grid-2{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr}
  .shop{grid-template-columns:1fr}
  .flow__item{grid-template-columns:64px minmax(0,1fr);row-gap:8px}
  .flow__text{grid-column:2}
  .footer__inner{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1/-1}
}

@media (max-width:768px){
  .burger{display:block}
  .nav{
    position:fixed;inset:78px 0 auto 0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(255,255,255,.98);
    backdrop-filter:blur(12px);
    color:var(--ink);
    padding:8px var(--pad) 32px;
    border-bottom:1px solid var(--line);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .3s var(--ease),transform .3s var(--ease);
  }
  .nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav__list{flex-direction:column;gap:0}
  .nav__list a{display:block;padding:18px 0;border-bottom:1px solid var(--line);font-size:14.5px}
  .nav__cta{margin-top:22px;text-align:center;justify-content:center;display:block}
  .header .nav__cta:hover{background:var(--black);color:var(--white)}
  .hero__scroll{display:none}
  .btn{height:52px;padding:0 24px;font-size:13px;flex:1 1 100%}
  .footer__inner{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column;align-items:flex-start}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .hero__scroll::after{animation:none}
}