/* ===== TOBIRA DESIGN — v2 (reference: 8 Branding Design direction) ===== */
:root{
  --ink:#14171c;
  --ink-2:#3b424c;
  --sub:#7b828c;
  --line:#e6e3dd;
  --bg:#ffffff;
  --bg-2:#f5f3ef;
  --accent:#1b3b63;
  --sans:"Zen Kaku Gothic New","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  --en:"Inter","Zen Kaku Gothic New",sans-serif;
  --mincho:"Shippori Mincho","Hiragino Mincho ProN",serif;
  --gut:clamp(20px,5vw,72px);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.95;font-feature-settings:"palt";-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}

/* ---------- image slot ---------- */
.slot{position:relative;overflow:hidden;background:var(--bg-2);aspect-ratio:3/2}
.slot::after{content:attr(data-label);position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  font-family:var(--en);font-size:.62rem;letter-spacing:.28em;color:#b9b3a8;text-transform:uppercase;white-space:nowrap;z-index:0;padding:0 12px;text-align:center}
.slot img{position:relative;z-index:1;width:100%;height:100%;object-fit:cover}
.slot img.missing{display:none}

/* ---------- header ---------- */
.hd{position:fixed;inset:0 0 auto 0;z-index:100;display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--gut);transition:background .4s,padding .4s,box-shadow .4s;mix-blend-mode:normal}
.hd.solid{background:rgba(255,255,255,.94);backdrop-filter:blur(10px);padding:14px var(--gut);box-shadow:0 1px 0 var(--line)}
.hd .logo{display:flex;align-items:center;gap:11px;color:#fff;transition:color .4s}
.hd.solid .logo,.hd.dark .logo{color:var(--ink)}
.logo svg{width:22px;height:29px;flex:none}
.logo b{font-size:.95rem;font-weight:700;letter-spacing:.1em;line-height:1.3}
.logo b i{display:block;font-style:normal;font-family:var(--en);font-size:.55rem;letter-spacing:.3em;font-weight:500;opacity:.72}
.gnav{display:flex;align-items:center;gap:clamp(12px,1.7vw,30px)}
.gnav a{font-family:var(--en);font-size:.72rem;letter-spacing:.2em;font-weight:500;color:#fff;opacity:.9;transition:color .4s,opacity .3s;position:relative;padding:4px 0}
.hd.solid .gnav a,.hd.dark .gnav a{color:var(--ink)}
.gnav a span{display:block;font-family:var(--sans);font-size:.6rem;letter-spacing:.1em;opacity:.62;font-weight:400}
.gnav a:hover{opacity:.55}
.gnav a.on::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:currentColor}
.burger{display:none;width:30px;height:20px;position:relative;background:none;border:0;cursor:pointer;z-index:110}
.burger i{position:absolute;left:0;right:0;height:1.6px;background:#fff;transition:.35s}
.hd.solid .burger i,.hd.dark .burger i,.hd.open .burger i{background:var(--ink)}
.burger i:nth-child(1){top:2px}.burger i:nth-child(2){top:9px}.burger i:nth-child(3){top:16px}
.hd.open .burger i:nth-child(1){top:9px;transform:rotate(45deg)}
.hd.open .burger i:nth-child(2){opacity:0}
.hd.open .burger i:nth-child(3){top:9px;transform:rotate(-45deg)}
@media(min-width:901px) and (max-width:1180px){
  .gnav{gap:clamp(9px,1.2vw,16px)}
  .gnav a{font-size:.65rem;letter-spacing:.13em}
  .gnav a span{font-size:.54rem;letter-spacing:.06em}
}
@media(max-width:900px){
  .burger{display:block}
  .gnav{position:fixed;inset:0;flex-direction:column;justify-content:center;gap:26px;background:#fff;
    opacity:0;pointer-events:none;transition:.4s}
  .hd.open .gnav{opacity:1;pointer-events:auto}
  .gnav a{color:var(--ink)!important;font-size:.9rem;text-align:center}
  .gnav a span{font-size:.68rem;margin-top:4px}
}

/* ---------- hero ---------- */
.hero{position:relative;height:100svh;min-height:560px;overflow:hidden;background:#0e1116}
.hero .slide{position:absolute;inset:0;opacity:0;transition:opacity 1.6s ease;background:#0e1116}
.hero .slide.on{opacity:1}
.hero .slide img{width:100%;height:100%;object-fit:cover;transform:scale(1.06);transition:transform 8s linear}
.hero .slide.on img{transform:scale(1)}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,13,18,.52) 0%,rgba(10,13,18,.22) 40%,rgba(10,13,18,.62) 100%);z-index:2}
.hero-copy{position:absolute;z-index:3;left:var(--gut);right:var(--gut);bottom:clamp(80px,14vh,150px);color:#fff}
.hero-en{font-family:var(--en);font-size:.66rem;letter-spacing:.42em;opacity:.8;margin-bottom:26px}
.hero-catch{font-family:var(--mincho);font-weight:600;font-size:clamp(1.85rem,5.4vw,4.05rem);line-height:1.58;letter-spacing:.1em}
.hero-catch em{font-style:normal;display:block}
.hero-sub{margin-top:30px;font-size:clamp(.86rem,1.5vw,1.02rem);letter-spacing:.1em;line-height:2.1;opacity:.9;max-width:34em}
.hero-idx{position:absolute;z-index:3;right:var(--gut);bottom:clamp(80px,14vh,150px);display:flex;gap:10px}
.hero-idx button{width:34px;height:2px;border:0;background:rgba(255,255,255,.32);padding:0;cursor:pointer;transition:.3s}
.hero-idx button.on{background:#fff}
.scroll-i{position:absolute;z-index:3;left:var(--gut);bottom:30px;font-family:var(--en);font-size:.58rem;letter-spacing:.32em;color:rgba(255,255,255,.8);display:flex;align-items:center;gap:12px}
.scroll-i::after{content:"";width:56px;height:1px;background:rgba(255,255,255,.45);position:relative;overflow:hidden}
@media(max-width:700px){.hero-idx{display:none}}

/* ---------- page hero (下層) ---------- */
.phero{padding:clamp(140px,20vh,210px) var(--gut) clamp(56px,8vh,86px);border-bottom:1px solid var(--line)}
.phero .en{font-family:var(--en);font-size:.66rem;letter-spacing:.4em;color:var(--accent)}
.phero h1{font-size:clamp(1.7rem,4.2vw,2.9rem);font-weight:700;letter-spacing:.08em;line-height:1.6;margin-top:18px}
.phero p{margin-top:22px;font-size:.95rem;color:var(--ink-2);letter-spacing:.05em;max-width:44em}

/* ---------- generic section ---------- */
.sec{padding:clamp(72px,11vw,150px) var(--gut)}
.sec.tight{padding-top:clamp(40px,6vw,80px)}
.sec.grey{background:var(--bg-2)}
.wrap{max-width:1240px;margin:0 auto}
.wrap.narrow{max-width:880px}
.shead{display:flex;align-items:baseline;gap:22px;margin-bottom:clamp(32px,5vw,60px);flex-wrap:wrap}
.shead .num{font-family:var(--en);font-size:.68rem;letter-spacing:.24em;color:var(--accent);font-weight:600}
.shead .en{font-family:var(--en);font-size:clamp(1.4rem,3.4vw,2.3rem);font-weight:600;letter-spacing:.06em;line-height:1.2}
.shead .ja{font-size:.82rem;letter-spacing:.18em;color:var(--sub)}
h2.big{font-size:clamp(1.35rem,3vw,2.1rem);font-weight:700;letter-spacing:.07em;line-height:1.75}
h3.mid{font-size:clamp(1.08rem,2vw,1.4rem);font-weight:700;letter-spacing:.07em;line-height:1.7}
.p{font-size:clamp(.9rem,1.4vw,.97rem);color:var(--ink-2);letter-spacing:.04em;line-height:2.15}
.p + .p{margin-top:1.3em}
.mincho{font-family:var(--mincho);font-weight:600}
.stmt{font-family:var(--mincho);font-weight:600;font-size:clamp(1.3rem,3.4vw,2.35rem);line-height:1.85;letter-spacing:.09em}
.lead{font-size:clamp(.95rem,1.6vw,1.1rem);letter-spacing:.07em;line-height:2.15}

/* ---------- intro (statement + door image) ---------- */
.intro{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(34px,5vw,80px);align-items:center}
@media(max-width:900px){.intro{grid-template-columns:1fr}}
.intro .slot{aspect-ratio:4/5}

/* ---------- split rows ---------- */
.row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4.5vw,72px);align-items:center;margin-top:clamp(40px,6vw,90px)}
.row:first-of-type{margin-top:0}
.row.rev .rcol-img{order:2}
@media(max-width:860px){.row{grid-template-columns:1fr;gap:26px}.row.rev .rcol-img{order:0}}
.row .slot{aspect-ratio:4/3}
.rcol-txt .idx{font-family:var(--en);font-size:.66rem;letter-spacing:.26em;color:var(--accent);font-weight:600}
.rcol-txt h3{font-size:clamp(1.15rem,2.2vw,1.55rem);font-weight:700;letter-spacing:.08em;margin:14px 0 6px}
.rcol-txt .en-s{font-family:var(--en);font-size:.64rem;letter-spacing:.24em;color:var(--sub);margin-bottom:20px}
.more{display:inline-flex;align-items:center;gap:14px;margin-top:28px;font-family:var(--en);font-size:.68rem;letter-spacing:.24em;font-weight:600;color:var(--ink)}
.more::after{content:"";width:44px;height:1px;background:var(--ink);transition:width .35s}
.more:hover::after{width:66px}

/* ---------- works (projects) ---------- */
.works{display:grid;gap:clamp(30px,4vw,54px)}
.work{display:block;position:relative}
.work .slot{aspect-ratio:16/9}
.work .meta{display:flex;gap:20px;align-items:baseline;margin-top:22px;flex-wrap:wrap}
.work .tag{font-family:var(--en);font-size:.62rem;letter-spacing:.24em;color:var(--accent);font-weight:600}
.work h3{font-size:clamp(1.05rem,2vw,1.4rem);font-weight:700;letter-spacing:.07em}
.work .slogan{font-family:var(--mincho);font-weight:600;font-size:clamp(1rem,1.9vw,1.28rem);letter-spacing:.08em;margin-top:10px}
.work p{margin-top:12px;font-size:.9rem;color:var(--ink-2);line-height:2.1;max-width:52em}
.work:hover .slot img{transform:scale(1.03)}
.work .slot img{transition:transform 1.1s ease}

/* ---------- method ---------- */
.mgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(22px,3vw,40px)}
@media(max-width:860px){.mgrid{grid-template-columns:1fr}}
.mcard .slot{aspect-ratio:3/2;margin-bottom:22px}
.mcard .no{font-family:var(--en);font-size:2.1rem;font-weight:600;letter-spacing:.04em;color:var(--accent);line-height:1}
.mcard h3{font-size:1.05rem;font-weight:700;letter-spacing:.08em;margin:14px 0 4px}
.mcard .theme{font-size:.76rem;letter-spacing:.16em;color:var(--sub);margin-bottom:14px}
.mcard ul{list-style:none}
.mcard li{font-size:.86rem;color:var(--ink-2);line-height:1.95;padding-left:1.1em;position:relative;margin-bottom:7px}
.mcard li::before{content:"";position:absolute;left:0;top:.9em;width:7px;height:1px;background:var(--accent)}

/* ---------- fullbleed band ---------- */
.band{position:relative;height:clamp(280px,46vh,520px);overflow:hidden}
.band .slot{position:absolute;inset:0;aspect-ratio:auto}
.band .slot img{width:100%;height:100%;object-fit:cover}
.band .ov{position:absolute;inset:0;z-index:2;background:rgba(12,16,22,.52);display:flex;align-items:center;justify-content:center;text-align:center;padding:0 var(--gut)}
.band .ov p{color:#fff;text-shadow:0 1px 26px rgba(0,0,0,.45);font-family:var(--mincho);font-weight:600;font-size:clamp(1.15rem,3vw,2.05rem);letter-spacing:.12em;line-height:1.9}

/* ---------- values / list ---------- */
.vlist{border-top:1px solid var(--line)}
.vitem{display:grid;grid-template-columns:250px 1fr;gap:30px;padding:clamp(24px,3vw,38px) 0;border-bottom:1px solid var(--line);align-items:baseline}
@media(max-width:760px){.vitem{grid-template-columns:1fr;gap:8px}}
.vitem b{font-size:1.02rem;font-weight:700;letter-spacing:.1em}
.vitem span{font-size:.9rem;color:var(--ink-2);line-height:2.05}

/* ---------- table ---------- */
.tbl{width:100%;border-collapse:collapse;border-top:1px solid var(--line)}
.tbl th,.tbl td{text-align:left;padding:clamp(16px,2.2vw,26px) 0;border-bottom:1px solid var(--line);font-size:.92rem;vertical-align:top;line-height:2}
.tbl th{width:200px;font-weight:500;letter-spacing:.14em;color:var(--sub);padding-right:20px}
@media(max-width:700px){.tbl th{width:110px;font-size:.8rem}}

/* ---------- contact ---------- */
.form{display:grid;gap:26px;max-width:680px;margin-top:44px}
.form label{display:block;font-size:.76rem;letter-spacing:.18em;color:var(--sub);margin-bottom:9px}
.form input,.form textarea{width:100%;padding:14px 2px;border:0;border-bottom:1px solid var(--line);background:transparent;font-family:var(--sans);font-size:.95rem;color:var(--ink);transition:border-color .3s}
.form input:focus,.form textarea:focus{outline:none;border-bottom-color:var(--accent)}
.form textarea{min-height:150px;resize:vertical}
.btn{display:inline-flex;align-items:center;gap:16px;margin-top:10px;padding:19px 44px;background:var(--ink);color:#fff;border:0;cursor:pointer;
  font-family:var(--en);font-size:.72rem;letter-spacing:.24em;font-weight:600;transition:.3s}
.btn:hover{background:var(--accent)}
.btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}
.note{font-size:.74rem;color:var(--sub);letter-spacing:.04em;line-height:1.9;margin-top:14px}
.mail-l{display:inline-block;margin-top:8px;font-family:var(--en);font-size:clamp(1rem,2.4vw,1.5rem);letter-spacing:.04em;border-bottom:1px solid var(--line);padding-bottom:6px}

/* ---------- cta ---------- */
.cta{padding:clamp(70px,10vw,130px) var(--gut);background:var(--ink);color:#fff;text-align:center}
.cta .en{font-family:var(--en);font-size:.66rem;letter-spacing:.4em;opacity:.65}
.cta h2{font-family:var(--mincho);font-weight:600;font-size:clamp(1.35rem,3.4vw,2.3rem);letter-spacing:.11em;line-height:1.85;margin:22px 0 18px}
.cta p{font-size:.9rem;opacity:.72;letter-spacing:.06em}
.cta .btn{background:#fff;color:var(--ink);margin-top:38px}
.cta .btn:hover{background:var(--accent);color:#fff}

/* ---------- footer ---------- */
.ft{padding:clamp(56px,7vw,90px) var(--gut) 40px;border-top:1px solid var(--line)}
.ft-in{max-width:1240px;margin:0 auto;display:grid;grid-template-columns:1fr auto;gap:40px;align-items:start}
@media(max-width:760px){.ft-in{grid-template-columns:1fr}}
.ft .logo{color:var(--ink)}
.ft address{font-style:normal;margin-top:22px;font-size:.82rem;color:var(--ink-2);line-height:2.1;letter-spacing:.05em}
.ft nav{display:grid;gap:13px;text-align:right}
@media(max-width:760px){.ft nav{text-align:left}}
.ft nav a{font-family:var(--en);font-size:.7rem;letter-spacing:.2em;font-weight:500;color:var(--ink-2)}
.ft nav a:hover{color:var(--ink)}
.ft .cp{max-width:1240px;margin:clamp(40px,6vw,70px) auto 0;font-family:var(--en);font-size:.62rem;letter-spacing:.16em;color:var(--sub)}

/* ---------- reveal ---------- */
html.js .rv{opacity:0;transform:translateY(26px);transition:opacity 1s cubic-bezier(.2,.7,.3,1),transform 1s cubic-bezier(.2,.7,.3,1)}
html.js .rv.in{opacity:1;transform:none}
html.js .rv.d1{transition-delay:.1s}
html.js .rv.d2{transition-delay:.2s}

/* ---------- hero news (お知らせをヒーローに差し込む) ---------- */
.hero-news{position:absolute;z-index:4;right:var(--gut);bottom:clamp(44px,7.5vh,92px);
  display:none;align-items:baseline;gap:14px;max-width:min(78vw,560px);color:#fff;
  text-shadow:0 1px 18px rgba(0,0,0,.55)}
.hero.has-news .hero-news{display:flex}
.hero.has-news .slide.on{cursor:pointer}
.hero-news-en{font-family:var(--en);font-size:.58rem;letter-spacing:.26em;font-weight:600;opacity:.85;flex:none}
.hero-news-date{font-family:var(--en);font-size:.6rem;letter-spacing:.14em;opacity:.72;flex:none}
.hero-news-title{font-size:.88rem;letter-spacing:.05em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  border-bottom:1px solid rgba(255,255,255,.5);padding-bottom:3px;transition:opacity .3s}
.hero-news:hover .hero-news-title{opacity:.65}
@media(max-width:640px){
  .hero-news{left:var(--gut);right:var(--gut);max-width:none;gap:10px;bottom:clamp(40px,7vh,70px)}
  .hero-news-title{font-size:.8rem}
}

/* ---------- news tabs / coming soon / signature ---------- */
.tabs{display:flex;gap:clamp(22px,3.6vw,42px);border-bottom:1px solid rgba(20,23,28,.12);
  margin-bottom:clamp(32px,4.5vw,54px)}
.tab{background:none;border:0;padding:0 0 14px;font-family:var(--sans);font-size:.9rem;
  letter-spacing:.12em;color:var(--sub);cursor:pointer;position:relative;transition:color .3s}
.tab:hover{color:var(--ink-2)}
.tab.on{color:var(--ink);font-weight:700}
.tab.on::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--ink)}

.soon{padding:clamp(50px,9vw,110px) 0;text-align:center}
.soon .en{font-family:var(--en);font-size:.68rem;letter-spacing:.26em;color:var(--accent);font-weight:600}
.soon-lead{margin-top:24px;font-family:var(--mincho);font-weight:600;
  font-size:clamp(1.05rem,2.4vw,1.5rem);letter-spacing:.09em;line-height:2.1}

.sign{margin-top:clamp(34px,4vw,52px);text-align:right;font-size:.9rem;letter-spacing:.06em;
  line-height:2.2;color:var(--ink-2)}
.sign b{color:var(--ink);font-weight:700;font-size:1.02rem;letter-spacing:.1em}
.fine{font-size:.8rem;letter-spacing:.08em;color:var(--sub);line-height:2}

/* ---------- blog ---------- */
.blog-msg{color:var(--sub)}
.blog-list{display:grid;gap:clamp(38px,5vw,64px)}
.blog-item{display:block;color:inherit;border-bottom:1px solid rgba(20,23,28,.1);padding-bottom:clamp(30px,4vw,48px)}
.blog-item:last-child{border-bottom:0}
.blog-date{display:block;font-family:var(--en);font-size:.66rem;letter-spacing:.2em;color:var(--accent);font-weight:600}
.blog-item h3{margin-top:12px;font-size:clamp(1.05rem,2vw,1.35rem);font-weight:700;letter-spacing:.06em;line-height:1.7}
.blog-item .blog-ex{margin-top:12px;font-size:.9rem;color:var(--ink-2);letter-spacing:.04em}
.blog-item .blog-img{margin-bottom:22px}
.blog-item:hover h3{opacity:.62;transition:opacity .3s}
.blog-img{overflow:hidden;background:var(--bg-2)}
.blog-img img{display:block;width:100%;height:auto}
.blog-post h2{font-size:clamp(1.3rem,3vw,2rem);font-weight:700;letter-spacing:.06em;line-height:1.65;margin-top:14px}
.blog-post .blog-img{margin:clamp(28px,4vw,46px) 0}
.blog-post .p:first-of-type{margin-top:clamp(24px,3vw,36px)}
.blog-post .more{margin-top:clamp(40px,5vw,64px)}

/* ---------- draft ribbon ---------- */
.ribbon{position:fixed;right:14px;bottom:14px;z-index:120;background:rgba(20,23,28,.86);color:#fff;
  font-family:var(--en);font-size:.58rem;letter-spacing:.22em;padding:8px 14px;pointer-events:none}