:root{
  --sumi:#1B1F1C;
  --washi:#EDEFE9;
  --ishi:#8A8C84;
  --usu:#DDE0D8;
  --ao:#2F5773;
  --shiro:#FFFFFF;
  --mincho:"Zen Old Mincho",serif;
  --gothic:"Zen Kaku Gothic New",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}
body{
  background:var(--washi);color:var(--sumi);
  font-family:var(--gothic);font-weight:300;
  line-height:2.1;letter-spacing:.06em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;width:100%;height:100%;object-fit:contain}
a{color:inherit}
:focus-visible{outline:2px solid var(--ao);outline-offset:3px}

.wrap{max-width:1080px;margin:0 auto;padding:0 28px}

/* ---- 写真の枠 ---- */
.ph{position:relative;background:var(--usu);overflow:hidden}
.ph::after{
  content:attr(data-label);position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  font-size:11px;letter-spacing:.2em;color:var(--ishi);
}
.ph img{position:relative;z-index:1}
.ph img[hidden]{display:none}

/* ---- ヘッダー ---- */
.head{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;justify-content:space-between;align-items:center;
  padding:22px 28px;
  color:#fff;
  text-shadow:0 1px 14px rgba(0,0,0,.5);
  transition:background .4s ease,color .4s ease,padding .4s ease;
}
.head.scrolled{
  color:var(--sumi);text-shadow:none;
  background:rgba(237,239,233,.94);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  padding:15px 28px;
  border-bottom:1px solid var(--usu);
}
.head .mark{font-family:var(--mincho);font-size:15px;letter-spacing:.18em}
.head nav{display:flex;gap:24px;font-size:12px;letter-spacing:.14em}
.head a{text-decoration:none;opacity:.85}
.head a:hover{opacity:1}

/* ハンバーガーボタン（スマホのみ） */
.menu-btn{
  display:none;border:0;padding:0;cursor:pointer;
  width:44px;height:44px;position:relative;flex:0 0 auto;
  border-radius:50%;
  background:rgba(18,22,18,.34);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  transition:background .4s ease;
}
.head.scrolled .menu-btn{background:rgba(27,31,28,.07);-webkit-backdrop-filter:none;backdrop-filter:none}
.menu-btn span{
  display:block;position:absolute;left:13px;right:13px;height:2px;
  background:currentColor;border-radius:2px;
  transition:transform .35s ease, opacity .25s ease;
}
.menu-btn span:nth-child(1){top:15px}
.menu-btn span:nth-child(2){top:21px}
.menu-btn span:nth-child(3){top:27px}
body.nav-open .menu-btn{background:transparent;-webkit-backdrop-filter:none;backdrop-filter:none}
body.nav-open .menu-btn span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .menu-btn span:nth-child(2){opacity:0}
body.nav-open .menu-btn span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 全画面メニュー */
.menu-panel{
  position:fixed;inset:0;z-index:45;
  background:var(--sumi);
  display:flex;flex-direction:column;justify-content:center;
  padding:0 40px;
  opacity:0;visibility:hidden;transition:opacity .4s ease,visibility .4s;
}
body.nav-open .menu-panel{opacity:1;visibility:visible}
body.nav-open .head{background:transparent;border-bottom:0;color:#fff;text-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none}
.menu-panel a{
  font-family:var(--mincho);color:#fff;text-decoration:none;
  font-size:21px;letter-spacing:.16em;
  padding:19px 0;border-bottom:1px solid #333a33;
  display:flex;justify-content:space-between;align-items:baseline;
}
.menu-panel a:last-of-type{border-bottom:0}
.menu-panel a .en{font-family:var(--gothic);font-size:9.5px;letter-spacing:.24em;color:#7d867c}

@media(max-width:720px){
  .head nav{display:none}
  .menu-btn{display:block}
  body.nav-open{overflow:hidden}
}

/* ---- ヒーロー ---- */
.hero{position:relative;height:100svh;min-height:520px}
.hero .ph{position:absolute;inset:0}
.hero .ph img{object-fit:cover}
.hero::before{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(100deg,rgba(20,24,20,.55) 0%,rgba(20,24,20,.15) 55%,rgba(20,24,20,0) 100%);
}
.hero-type{
  position:absolute;z-index:3;left:0;top:0;height:100%;
  display:flex;align-items:center;padding-left:clamp(28px,7vw,110px);
}
.tate{
  writing-mode:vertical-rl;
  font-family:var(--mincho);
  color:#fff;
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.85;letter-spacing:.24em;
  text-shadow:0 2px 18px rgba(0,0,0,.35);
}
.tate small{
  display:block;font-family:var(--gothic);font-weight:300;
  font-size:12px;letter-spacing:.3em;margin-right:26px;opacity:.8;
}
@media(max-width:720px){
  .hero-type{align-items:center;padding-left:26px}
  .tate{font-size:23px;letter-spacing:.2em;line-height:1.75}
  .tate small{font-size:10px;letter-spacing:.26em;margin-right:19px}
}
@media(max-width:720px) and (max-height:620px){
  .tate{font-size:19px;line-height:1.6}
}
.scroll-cue{
  position:absolute;z-index:3;bottom:26px;right:28px;
  color:#fff;font-size:10px;letter-spacing:.28em;opacity:.7;
}

/* ---- セクション ---- */
section{padding:clamp(90px,13vw,170px) 0}
.eyebrow{
  font-size:11px;letter-spacing:.32em;color:var(--ishi);
  padding-bottom:14px;border-bottom:1px solid var(--usu);
  display:inline-block;margin-bottom:clamp(38px,6vw,64px);
}
h2{
  font-family:var(--mincho);font-weight:400;
  font-size:clamp(21px,2.6vw,30px);
  line-height:1.9;letter-spacing:.1em;margin-bottom:34px;
}
h3{font-family:var(--mincho);font-weight:400;font-size:17px;letter-spacing:.1em;margin-bottom:12px}
p{font-size:15px;max-width:44em}
.lead{font-size:16px}
.muted{color:var(--ishi);font-size:13.5px}

/* ---- 納品物 ---- */
.deliver{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--usu);margin-top:56px}
.deliver div{background:var(--washi);padding:30px 22px}
.deliver .n{font-family:var(--mincho);color:var(--ao);font-size:13px;letter-spacing:.1em}
.deliver p{font-size:13px;line-height:1.95;margin-top:8px;color:var(--ishi)}
@media(max-width:820px){ .deliver{grid-template-columns:repeat(2,1fr)} }

/* ---- 事例 ---- */
.case{margin-bottom:clamp(70px,10vw,120px)}
.case:last-child{margin-bottom:0}
.case-imgs{display:grid;grid-template-columns:1.45fr 1fr;gap:14px}
.case-imgs .ph:first-child{aspect-ratio:4/3}
.case-imgs .ph:last-child{aspect-ratio:3/4;background:var(--shiro)}
.case-txt{display:flex;gap:clamp(20px,5vw,64px);margin-top:26px;flex-wrap:wrap}
.case-txt .meta{min-width:150px;font-size:12px;color:var(--ishi);line-height:2.2}
@media(max-width:720px){ .case-imgs{grid-template-columns:1fr} .case-imgs .ph:last-child{aspect-ratio:4/3} }

/* ---- 料金 ---- */
.fee{border-top:1px solid var(--usu);margin-top:50px}
.fee-row{
  display:grid;grid-template-columns:1fr 2.2fr auto;gap:24px;
  padding:30px 0;border-bottom:1px solid var(--usu);align-items:baseline;
}
.fee-row .name{font-family:var(--mincho);font-size:17px;letter-spacing:.08em}
.fee-row .desc{font-size:13.5px;color:var(--ishi);line-height:2}
.fee-row .price{font-family:var(--mincho);font-size:19px;white-space:nowrap}
@media(max-width:720px){ .fee-row{grid-template-columns:1fr;gap:8px} .fee-row .price{margin-top:6px} }

/* ---- 流れ ---- */
.flow{counter-reset:step;margin-top:50px;max-width:640px}
.flow li{
  list-style:none;counter-increment:step;position:relative;
  padding:0 0 34px 58px;border-left:1px solid var(--usu);
}
.flow li:last-child{border-left-color:transparent;padding-bottom:0}
.flow li::before{
  content:counter(step,decimal-leading-zero);
  position:absolute;left:-11px;top:0;
  width:22px;height:22px;border-radius:50%;
  background:var(--washi);border:1px solid var(--usu);
  font-size:9px;letter-spacing:0;color:var(--ishi);
  display:flex;align-items:center;justify-content:center;
}
.flow .t{font-family:var(--mincho);font-size:16px;letter-spacing:.08em}
.flow .d{font-size:13px;color:var(--ishi);line-height:2;margin-top:4px}

/* ---- 概要 ---- */
.about{display:grid;grid-template-columns:1fr 1.3fr;gap:clamp(28px,6vw,70px);align-items:start}
.about .ph{aspect-ratio:3/4}
dl{font-size:13.5px;line-height:2.4}
dl div{display:grid;grid-template-columns:5.5em 1fr;gap:16px;padding:11px 0;border-bottom:1px solid var(--usu)}
dt{color:var(--ishi);font-size:12px}
@media(max-width:720px){ .about{grid-template-columns:1fr} .about .ph{aspect-ratio:4/3} }

/* ---- 問い合わせ ---- */
.contact{background:var(--sumi);color:var(--washi)}
.contact .eyebrow{color:#7d867c;border-bottom-color:#333a33}
.contact h2{color:#fff}
.contact p{color:#b9c0b7}
.mail{
  display:inline-block;margin-top:40px;
  font-family:var(--mincho);font-size:clamp(20px,3vw,28px);
  letter-spacing:.06em;text-decoration:none;color:#fff;
  border-bottom:1px solid #4b544a;padding-bottom:9px;
  transition:border-color .3s;
}
.mail:hover{border-bottom-color:#fff}

footer{background:var(--sumi);color:#6f776e;font-size:11px;letter-spacing:.14em;padding:0 0 46px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* ---- 出現 ---- */
.fx{opacity:0;transform:translateY(14px);transition:opacity 1s ease,transform 1s ease}
.fx.on{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){ .fx{opacity:1;transform:none} }

/* ========== 事例一覧（トップページ用・1枚クリック型） ========== */
.works-grid{display:grid;grid-template-columns:1fr 1fr;gap:2px;background:var(--usu)}
.work-card{position:relative;display:block;text-decoration:none;color:#fff;aspect-ratio:4/3;overflow:hidden;background:var(--usu)}
.work-card .ph{position:absolute;inset:0}
.work-card::after{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(0deg,rgba(10,12,10,.72) 0%,rgba(10,12,10,.08) 42%,rgba(10,12,10,0) 65%);
  transition:background .4s ease;
}
.work-card:hover::after{background:linear-gradient(0deg,rgba(10,12,10,.8) 0%,rgba(10,12,10,.2) 55%,rgba(10,12,10,0) 75%)}
.work-card .cap{position:absolute;z-index:3;left:24px;right:24px;bottom:22px}
.work-card .cap .loc{font-size:11px;letter-spacing:.2em;opacity:.8;margin-bottom:6px}
.work-card .cap h3{font-size:16px;color:#fff;margin:0;letter-spacing:.08em}
.work-card .cap .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  font-size:10.5px;letter-spacing:.2em;opacity:.85;
  transition:opacity .3s, transform .3s;
}
.work-card:hover .cap .more{opacity:1;transform:translateX(4px)}
@media(max-width:720px){
  .works-grid{grid-template-columns:1fr}
  .work-card{aspect-ratio:5/4}
}

/* ========== 事例詳細ページ ========== */
.work-hero{position:relative;height:78svh;min-height:440px}
.work-hero .ph{position:absolute;inset:0}
.work-hero::before{
  content:"";position:absolute;inset:0;z-index:2;
  background:linear-gradient(0deg,rgba(15,18,15,.75) 0%,rgba(15,18,15,.05) 45%,rgba(15,18,15,0) 100%);
}
.work-hero-txt{position:absolute;z-index:3;left:0;right:0;bottom:0;padding:0 28px 46px}
.work-hero-txt .loc{color:#dfe3db;font-size:11px;letter-spacing:.26em;margin-bottom:10px}
.work-hero-txt h1{font-family:var(--mincho);color:#fff;font-weight:400;font-size:clamp(24px,4vw,38px);letter-spacing:.08em;line-height:1.6}
.back-link{
  position:fixed;top:22px;left:28px;z-index:50;color:#fff;mix-blend-mode:difference;
  font-size:11px;letter-spacing:.18em;text-decoration:none;display:flex;align-items:center;gap:8px;
}

.work-meta{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--usu);margin-top:0}
.work-meta div{background:var(--washi);padding:26px 22px}
.work-meta dt{font-size:10.5px;color:var(--ishi);letter-spacing:.18em;margin-bottom:8px}
.work-meta dd{font-family:var(--mincho);font-size:14.5px;letter-spacing:.04em}
@media(max-width:720px){ .work-meta{grid-template-columns:repeat(2,1fr)} }

.story{max-width:38em}
.story p{margin-bottom:1.6em}
.story p:last-child{margin-bottom:0}

.stage-label{
  font-size:11px;letter-spacing:.24em;color:var(--ishi);
  display:flex;align-items:center;gap:14px;margin:0 0 26px;
}
.stage-label::after{content:"";flex:1;height:1px;background:var(--usu)}

.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.gallery .ph{aspect-ratio:4/3}
.gallery .ph.wide{grid-column:span 2;aspect-ratio:16/10}
@media(max-width:720px){
  .gallery{grid-template-columns:1fr}
  .gallery .ph.wide{grid-column:span 1;aspect-ratio:4/3}
}

.work-nav{
  display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid var(--usu);padding-top:40px;margin-top:20px;
}
.work-nav a{text-decoration:none;color:var(--sumi);font-size:13px;letter-spacing:.1em}
.work-nav .prev::before{content:"← "}
.work-nav .next::after{content:" →"}

:root{
  --mincho:"Hiragino Mincho ProN","Yu Mincho",YuMincho,"Noto Serif JP",serif;
  --gothic:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic","Noto Sans JP",sans-serif;
}