/* ===========================================================
   borderless design studio — design system
   モノクローム / Inter+Noto Sans JP / 非対称グリッド
   =========================================================== */
:root{
  --c-bg:#FFFFFF; --c-surface:#F5F5F5; --c-text:#1A1A1A; --c-t2:#4A4A4A;
  --c-mu:#888888; --c-bd:#E5E5E5;
  --ff:'Inter','Noto Sans JP',sans-serif;
  --lh:1.75; --ls:.05em;
  --sp2:8px;--sp3:12px;--sp4:16px;--sp5:24px;--sp6:32px;--sp7:48px;--sp8:64px;--sp9:96px;--sp10:128px;
  --wrap:1280px; --read:720px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:var(--ff);font-weight:400;font-size:16px;line-height:var(--lh);
  color:var(--c-text);background:var(--c-bg);letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-weight:500;line-height:1.4;letter-spacing:.02em}
ul{list-style:none}
::selection{background:var(--c-text);color:#fff}

/* layout */
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.read{max-width:var(--read);margin:0 auto;padding:0 28px}
.section{padding:var(--sp9) 0}
.section--tight{padding:var(--sp8) 0}
.lead{font-size:18px;color:var(--c-t2);line-height:1.9;
  word-break:auto-phrase;line-break:strict;text-wrap:pretty}
.muted{color:var(--c-mu)}

/* section label : ── About */
.label{display:block;font-size:12px;letter-spacing:.18em;color:var(--c-mu);
  font-weight:500;margin-bottom:var(--sp5)}
.label::before{content:"── "}

/* headings scale */
.display{font-weight:300;font-size:clamp(38px,5.4vw,56px);line-height:1.34;letter-spacing:.02em}
.h1{font-size:clamp(28px,4vw,40px)}
.h2{font-size:clamp(22px,3vw,30px)}
.h3{font-size:20px}

/* buttons / links */
/* 重要ボタン：黒塗りで強調（角丸なし） */
.btn{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--c-text);
  background:var(--c-text);color:#fff;padding:14px 30px;font-size:13px;
  letter-spacing:.06em;cursor:pointer;border-radius:0;transition:background .25s,color .25s}
.btn:hover{background:transparent;color:var(--c-text)}
.btn--light{border-color:#fff;background:#fff;color:var(--c-text)}
.btn--light:hover{background:transparent;color:#fff}
/* リンクボタン：囲み罫でクリックできると分かるように（角丸なし） */
.link{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--c-text);
  color:var(--c-text);background:transparent;padding:11px 20px;font-size:13px;
  letter-spacing:.04em;border-radius:0;transition:background .25s,color .25s}
.link:hover{background:var(--c-text);color:#fff}
/* 文中インラインの下線リンク */
.ulink{border-bottom:1px solid var(--c-text);padding-bottom:1px;transition:opacity .2s}
.ulink:hover{opacity:.55}
.link .ar,.btn .ar{transition:transform .25s}
.link:hover .ar,.btn:hover .ar{transform:translateX(4px)}

/* tags */
.tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;border:1px solid var(--c-bd);color:var(--c-t2);
  font-size:11px;letter-spacing:.04em;padding:4px 12px;transition:.2s}
.tag:hover{border-color:var(--c-text);color:var(--c-text)}
.tag.is-active,.tag--active{background:var(--c-text);color:#fff;border-color:var(--c-text)}

/* photo placeholder ratio helper */
.ph{background:#ECECEC;display:block;width:100%}
.r32{aspect-ratio:3/2;object-fit:cover}
.r45{aspect-ratio:4/5;object-fit:cover}
.r11{aspect-ratio:1/1;object-fit:cover}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;width:100%;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 28px;transition:background .3s,border-color .3s}
.site-header.is-top{background:transparent}
.site-header.is-top .logo,.site-header.is-top .gnav a{color:#fff}
.site-header.is-stuck{background:var(--c-bg);border-bottom:1px solid var(--c-bd)}
.logo{font-size:15px;font-weight:500;letter-spacing:var(--ls);display:inline-flex;align-items:center}
.site-header .logo img{height:18px;width:auto;display:block;filter:brightness(0);transition:filter .3s}
.site-header.is-top .logo img{filter:brightness(0) invert(1)}
.gnav{display:flex;gap:22px;align-items:center;color:var(--c-t2)}
.gnav a{display:flex;flex-direction:column;align-items:center;line-height:1.2}
.gnav .en{font-size:16px;letter-spacing:.05em}
.gnav .jp{font-size:10px;letter-spacing:.04em;color:var(--c-mu);margin-top:4px}
.gnav a.current,.gnav a:hover{color:var(--c-text)}
.gnav a.current .jp,.gnav a:hover .jp{color:var(--c-t2)}
/* CONTACT は重要導線として黒塗りで強調 */
.gnav a.nav-cta{background:var(--c-text);color:#fff;padding:9px 18px}
.gnav a.nav-cta .jp{color:rgba(255,255,255,.75)}
.gnav a.nav-cta:hover{background:#000;color:#fff}
.site-header.is-top .gnav a.nav-cta{background:var(--c-text);color:#fff}
.site-header.is-top .gnav a.nav-cta .jp{color:rgba(255,255,255,.75)}
.site-header.is-top .gnav a{color:#fff}
.site-header.is-top .gnav .jp{color:rgba(255,255,255,.7)}
.site-header.is-top .gnav a.current{font-weight:500}
.navtoggle{display:none;background:none;border:0;cursor:pointer;font-size:22px;color:inherit}

/* ---------- hero (FV) ---------- */
.hero{position:relative;height:100svh;min-height:560px;color:#fff;overflow:hidden}
.hero__slides{position:absolute;inset:0}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;transition:opacity 1.6s ease}
.hero__img.is-active{opacity:1}
.hero__scrim{position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(20,18,16,.34)0%,rgba(20,18,16,0)30%,rgba(20,18,16,0)52%,rgba(20,18,16,.55)100%)}
.hero__copy{position:absolute;left:0;bottom:9%;width:100%}
.hero__copy .label{color:rgba(255,255,255,.8)}
.hero h1{color:#fff;font-weight:300;font-size:clamp(34px,6vw,60px);line-height:1.32;letter-spacing:.03em}
.hero__sub{margin-top:24px;font-size:13px;letter-spacing:.05em;color:rgba(255,255,255,.85)}
.scrolldown{position:absolute;left:50%;bottom:22px;transform:translateX(-50%);
  font-size:10px;letter-spacing:.2em;color:rgba(255,255,255,.8);text-align:center}
.scrolldown span{display:block;animation:bob 1.8s ease-in-out infinite;margin-top:4px}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}

/* generic page hero (non-FV) */
.page-head{padding:150px 0 var(--sp7)}
.page-head .h1{margin-top:6px}
.breadcrumb{font-size:11px;letter-spacing:.06em;color:var(--c-mu);margin-bottom:10px}
.breadcrumb a:hover{color:var(--c-text)}

/* ---------- home: news band ---------- */
.newsband{border-top:1px solid var(--c-bd);border-bottom:1px solid var(--c-bd)}
.newsband .wrap{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:center;padding-top:16px;padding-bottom:16px}
.newsband .label{margin:0}
.newslist{display:flex;flex-direction:column;gap:9px}
.newsrow{display:flex;align-items:center;gap:16px;font-size:13px}
.newsrow time{color:var(--c-mu);font-size:12px;min-width:84px}
.newsrow .tag{padding:2px 9px}

/* ---------- concept (centered) ---------- */
.concept{text-align:center}
.concept .h2{margin-bottom:var(--sp5);line-height:1.55}
.concept p{margin-bottom:var(--sp6)}

/* ---------- services: magazine cassette (2col) ---------- */
.grid-cassette{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp9) var(--sp7)}
.cassette .card__img{overflow:hidden}
.cassette .card__img img{transition:transform .6s}
.cassette:hover .card__img img{transform:scale(1.03)}
.cassette__no{font-size:11px;letter-spacing:.18em;color:var(--c-mu);margin-top:18px}
.cassette__name{font-weight:500;font-size:22px;letter-spacing:.02em;margin:6px 0 10px;line-height:1.4}
.cassette__txt{font-size:14px;color:var(--c-t2);line-height:1.85;margin-bottom:14px}

/* ---------- services grid (legacy 4col, used by small-house points) ---------- */
.grid-serv{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp6) var(--sp5)}
.serv__name{font-weight:500;font-size:16px;margin:14px 0 6px}
.serv__txt{font-size:13px;color:var(--c-t2);margin-bottom:10px;line-height:1.8}
.serv-num{display:grid;grid-template-columns:auto 1fr;gap:var(--sp6);align-items:start;
  padding:var(--sp7) 0;border-top:1px solid var(--c-bd)}
.serv-num .n{font-weight:300;font-size:clamp(40px,5vw,64px);color:var(--c-text);line-height:1}
.serv-num .h2{margin-bottom:14px}
.serv-num .thumb{margin:16px 0}

/* ---------- works grid (asymmetric) ---------- */
.works-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:var(--sp6);align-items:stretch}
.works-col{display:flex;flex-direction:column;gap:var(--sp6)}
.works-grid>.card:first-child{display:flex;flex-direction:column}
.works-grid>.card:first-child .card__img{flex:1 1 auto;min-height:380px}
.r-fill{width:100%;height:100%;object-fit:cover;display:block}
.card__num{font-size:11px;color:var(--c-mu);margin-top:12px}
.card__label{display:inline-block;font-size:10px;letter-spacing:.08em;color:var(--c-t2);
  border:1px solid var(--c-bd);padding:2px 8px;margin-top:6px}
.card__title{font-weight:500;font-size:15px;margin-top:2px}
.card__img{overflow:hidden}
.card__img img{transition:transform .5s}
.card:hover .card__img img{transform:scale(1.03)}
.works-archive{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp7) var(--sp5)}
.gallery-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp5)}
@media(max-width:640px){.gallery-grid{grid-template-columns:1fr}}
.works-archive .card__title{font-size:14px}

/* filter bar */
.filterbar{display:flex;flex-direction:column;gap:14px;margin-bottom:var(--sp7)}
.filterbar .frow{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.frow .ft{font-size:11px;color:var(--c-mu);letter-spacing:.1em;min-width:54px}

/* ---------- points list (small-house 5 viewpoints) ---------- */
.points{border-top:1px solid var(--c-bd)}
.point{display:grid;grid-template-columns:64px 56px 150px 1fr;align-items:center;
  gap:var(--sp5);padding:26px 0;border-bottom:1px solid var(--c-bd)}
.point__num{font-weight:300;font-size:26px;letter-spacing:.06em;color:var(--c-mu);line-height:1}
.point__ic{width:32px;height:32px;color:var(--c-text)}
.point__ic svg{width:100%;height:100%;display:block}
.point__title{font-size:19px;font-weight:500;letter-spacing:.04em;margin:0}
.point__txt{font-size:13.5px;color:var(--c-t2);line-height:1.9;margin:0}
@media(max-width:760px){
  .point{grid-template-columns:44px 40px 1fr;row-gap:10px;padding:20px 0}
  .point__ic{width:26px;height:26px}
  .point__txt{grid-column:1/-1}
}

/* ---------- flow steps ---------- */
.steps{display:flex;flex-direction:column}
.step{display:grid;grid-template-columns:auto 1fr;gap:var(--sp6);padding:var(--sp6) 0;border-top:1px solid var(--c-bd)}
.step:last-child{border-bottom:1px solid var(--c-bd)}
.step .n{font-weight:300;font-size:clamp(30px,4vw,46px);line-height:1;color:var(--c-text)}
.step h3{margin-bottom:8px}
.step p{font-size:14px;color:var(--c-t2)}
.step .dur{display:inline-block;margin-top:10px;font-size:11px;color:var(--c-mu);
  border:1px solid var(--c-bd);padding:3px 10px}

/* ---------- accordion (faq) ---------- */
.faqcat{margin-bottom:var(--sp7)}
.faqcat>.h2{margin-bottom:var(--sp4)}
.acc{border-top:1px solid var(--c-bd)}
.acc:last-child{border-bottom:1px solid var(--c-bd)}
.acc__q{width:100%;text-align:left;background:none;border:0;cursor:pointer;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
  padding:18px 0;font-size:15px;font-weight:500;color:var(--c-text);font-family:inherit}
.acc__q .ic{transition:transform .3s;color:var(--c-mu)}
.acc.is-open .acc__q .ic{transform:rotate(45deg)}
.acc__a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.acc__a p{padding:0 0 20px;font-size:14px;color:var(--c-t2)}

/* ---------- meta table (work detail) ---------- */
.metatable{width:100%;border-top:1px solid var(--c-bd);font-size:13px}
.metatable tr{border-bottom:1px solid var(--c-bd)}
.metatable th{text-align:left;color:var(--c-mu);font-weight:400;padding:11px 0;width:140px;letter-spacing:.05em}
.metatable td{padding:11px 0;color:var(--c-text)}
.metatable td .taglink{color:var(--c-text);text-decoration:none;border-bottom:1px solid var(--c-bd);padding-bottom:1px;transition:border-color .2s}
.metatable td .taglink:hover{border-color:var(--c-text)}
.pullquote{font-weight:300;font-size:clamp(20px,2.6vw,26px);line-height:1.7;
  letter-spacing:.04em;color:var(--c-text);padding:var(--sp7) 0;text-align:center}
figure figcaption{font-size:12px;color:var(--c-mu);margin-top:10px}

/* prose (article body) */
.prose>*+*{margin-top:1.4em}
.prose h3{font-size:18px;margin-top:2em}
.prose p{font-size:16px;color:var(--c-text)}
.prose .lead{font-size:18px}
.prose img{margin:1.8em 0}

/* ---------- cta ---------- */
.cta{background:var(--c-surface);text-align:center;padding:var(--sp9) 0}
.cta .display{margin-bottom:var(--sp5);color:var(--c-text);font-size:clamp(30px,4vw,46px)}
.cta p{font-size:15px;color:var(--c-t2);margin-bottom:var(--sp6)}
.cta-btns{display:flex;flex-wrap:wrap;gap:var(--sp4);justify-content:center;margin-top:var(--sp5)}
@media(max-width:560px){.cta-btns{flex-direction:column;align-items:stretch}.cta-btns .btn{justify-content:center}}

/* ---------- form ---------- */
.form{margin-top:var(--sp6)}
.field{margin-bottom:var(--sp6)}
.field label{display:block;font-size:16px;color:var(--c-text);font-weight:500;letter-spacing:.02em;margin-bottom:10px}
.field input,.field textarea,.field select{width:100%;border:1px solid var(--c-bd);border-radius:0;
  background:#fff;padding:13px 15px;font-family:inherit;font-size:16px;color:var(--c-text);
  transition:border-color .2s,box-shadow .2s}
.field input::placeholder,.field textarea::placeholder{color:#b8b8b8}
.field input:hover,.field textarea:hover,.field select:hover{border-color:var(--c-mu)}
.field input:focus,.field textarea:focus,.field select:focus{outline:0;border-color:var(--c-text);
  box-shadow:0 0 0 1px var(--c-text)}
.field select{appearance:none;-webkit-appearance:none;background-image:
  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%231A1A1A' stroke-width='1.4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 15px center;padding-right:38px}
.field textarea{min-height:120px;resize:vertical}
.consent{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-t2)}

/* Contact Form 7 の見た目調整（モノクロ維持） */
.wpcf7-form-control-wrap{display:block}
input[type=submit].btn{-webkit-appearance:none;appearance:none;font-family:inherit;cursor:pointer}
.wpcf7 .consent{margin-top:var(--sp5);margin-bottom:var(--sp6)}
.wpcf7 .consent .wpcf7-list-item{margin:0}
.wpcf7 .consent label{display:inline}
.wpcf7-not-valid-tip{font-size:12px;color:#9a3a30;margin-top:6px}
.wpcf7 .wpcf7-not-valid{border-bottom-color:#9a3a30 !important}
.wpcf7-response-output{margin:var(--sp5) 0 0 !important;padding:13px 16px !important;
  font-size:13px;border:1px solid var(--c-bd) !important;border-radius:0 !important;color:var(--c-t2)}
.wpcf7 form.sent .wpcf7-response-output{border-color:var(--c-text) !important;color:var(--c-text)}
.wpcf7-spinner{margin:0 0 0 12px}

/* ---------- youtube promo (compact band) ---------- */
.ytpromo{border-top:1px solid var(--c-bd)}
.ytpromo__inner{display:flex;align-items:center;gap:16px;padding:22px 0;color:var(--c-text)}
.ytpromo__ic{flex:none;color:var(--c-text)}
.ytpromo__cat{font-size:11px;letter-spacing:.14em;color:var(--c-mu);border:1px solid var(--c-bd);padding:3px 10px}
.ytpromo__title{font-size:15px;font-weight:500;letter-spacing:.02em}
.ytpromo__cta{margin-left:auto;font-size:13px;letter-spacing:.04em;border:1px solid var(--c-text);
  padding:9px 18px;white-space:nowrap;transition:background .25s,color .25s}
.ytpromo__inner:hover .ytpromo__cta{background:var(--c-text);color:#fff}
.ytpromo__inner:hover .ytpromo__cta .ar{transform:translateX(4px)}
@media(max-width:640px){
  .ytpromo__inner{flex-wrap:wrap;gap:10px}
  .ytpromo__cta{margin-left:0;width:100%;text-align:center}
}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--c-bd);padding:var(--sp9) 0 var(--sp6)}
.foot-grid{display:grid;grid-template-columns:1.5fr 1.1fr 1.1fr 1fr;gap:var(--sp6)}
.foot-brand .logo{display:block;margin-bottom:14px}
.foot-state{font-size:15px;color:var(--c-text);line-height:1.95;margin-bottom:18px}
.foot-addr{font-size:12px;color:var(--c-t2);line-height:1.9}
.foot-ig{font-size:12px;color:var(--c-t2);margin-top:14px;display:inline-flex;align-items:center;gap:6px}
.fcol h4{font-size:11px;letter-spacing:.14em;color:var(--c-mu);font-weight:500;margin-bottom:14px}
.fcol a{display:block;font-size:12px;color:var(--c-t2);margin-bottom:9px;line-height:1.5}
.fcol a:hover{color:var(--c-text)}
.foot-bottom{margin-top:var(--sp7);padding-top:18px;border-top:1px solid var(--c-bd);
  font-size:11px;color:var(--c-mu);text-align:right}

/* pagination */
.pagination{display:flex;justify-content:center;gap:10px;margin-top:var(--sp7);font-size:13px}
.pagination .page-numbers{padding:8px 13px;border:1px solid var(--c-bd)}
.pagination .current{background:var(--c-text);color:#fff;border-color:var(--c-text)}

/* ---------- responsive ---------- */
@media(max-width:1040px){
  .gnav{position:fixed;inset:0;display:none;background:var(--c-bg);flex-direction:column;
    justify-content:center;align-items:center;gap:26px;color:var(--c-text)}
  .gnav.is-open{display:flex}
  .gnav a{flex-direction:row;gap:10px;align-items:baseline}
  .gnav .en{font-size:18px}
  .gnav .jp{margin-top:0;font-size:12px}
  .navtoggle{display:block;z-index:60}
  .site-header.is-top .navtoggle{color:#fff}
}
@media(max-width:900px){
  .grid-serv{grid-template-columns:1fr 1fr}
  .works-archive{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1/-1}
}
@media(max-width:640px){
  .wrap,.read{padding:0 20px}
  .site-header{padding:16px 20px}
  .gnav{display:none;position:fixed;inset:0;background:var(--c-bg);flex-direction:column;
    justify-content:center;align-items:center;gap:24px;font-size:15px;color:var(--c-text)}
  .gnav.is-open{display:flex}
  .navtoggle{display:block;z-index:60}
  .site-header.is-top .navtoggle{color:#fff}
  .works-grid{grid-template-columns:1fr}
  .works-grid>.card:first-child .card__img{min-height:0}
  .grid-cassette{grid-template-columns:1fr;gap:var(--sp7)}
  .grid-serv{grid-template-columns:1fr}
  .works-archive{grid-template-columns:1fr 1fr}
  .serv-num,.step{grid-template-columns:1fr;gap:var(--sp3)}
  .newsband .wrap{grid-template-columns:1fr;gap:12px}
  .foot-grid{grid-template-columns:1fr}
  .section{padding:var(--sp8) 0}
}