:root{
  --bg:#fbfbfa; --bg-card:#ffffff; --fg:#1c1b19; --fg-mid:#4a4845; --fg-dim:#78756f;
  --line:#e6e3dd; --accent:#b4531f; --accent-soft:#fdf2e9; --chip:#f2efe9;
  --shadow:0 1px 2px rgba(28,27,25,.05),0 8px 24px -12px rgba(28,27,25,.14);
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#16151a; --bg-card:#1e1d23; --fg:#eceaf0; --fg-mid:#d2ced9; --fg-dim:#8a8593;
    --line:#302e38; --accent:#f0995c; --accent-soft:#2a2028; --chip:#2a2830;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -12px rgba(0,0,0,.6);
  }
}
:root[data-theme="light"]{
  --bg:#fbfbfa; --bg-card:#ffffff; --fg:#1c1b19; --fg-mid:#4a4845; --fg-dim:#78756f;
  --line:#e6e3dd; --accent:#b4531f; --accent-soft:#fdf2e9; --chip:#f2efe9;
  --shadow:0 1px 2px rgba(28,27,25,.05),0 8px 24px -12px rgba(28,27,25,.14);
}
:root[data-theme="dark"]{
  --bg:#16151a; --bg-card:#1e1d23; --fg:#eceaf0; --fg-mid:#d2ced9; --fg-dim:#8a8593;
  --line:#302e38; --accent:#f0995c; --accent-soft:#2a2028; --chip:#2a2830;
  --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 24px -12px rgba(0,0,0,.6);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%; scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic Medium",Meiryo,sans-serif;
  line-height:1.85; font-size:16px; letter-spacing:.01em;
  font-feature-settings:"palt" 1;
}
.wrap{max-width:860px; margin:0 auto; padding:0 24px}

/* header */
header{padding:72px 0 56px; border-bottom:1px solid var(--line)}
.brand{font-size:14px; letter-spacing:.22em; color:var(--accent); font-weight:600; margin:0 0 20px}
.brand a{color:inherit; text-decoration:none}
h1{font-size:clamp(26px,5vw,38px); line-height:1.45; margin:0 0 20px; font-weight:700; letter-spacing:.005em}
.lede{font-size:17px; color:var(--fg-mid); margin:0; max-width:44em}
.lede + .lede{margin-top:14px}

/* sections */
section{padding:56px 0; border-bottom:1px solid var(--line); scroll-margin-top:14px}
section:last-of-type{border-bottom:0}
h2{font-size:13px; letter-spacing:.16em; color:var(--fg-dim); font-weight:600; margin:0 0 8px; text-transform:uppercase}
.h2ja{font-size:23px; font-weight:700; margin:0 0 10px; letter-spacing:.01em}
.sectnote{color:var(--fg-mid); margin:0 0 32px; font-size:15px; max-width:44em}

/* ページ間ナビ（目次チップと同じ見た目） */
.toc{display:flex; flex-wrap:wrap; gap:8px; margin:28px 0 0; padding:0}
.toc a{
  display:inline-block; font-size:13.5px; font-weight:600; text-decoration:none;
  color:var(--fg-mid); background:var(--chip); border:1px solid transparent;
  border-radius:999px; padding:5px 14px; transition:border-color .15s, color .15s;
}
.toc a:hover{border-color:var(--accent); color:var(--accent)}
.toc a .n{font-weight:400; color:var(--fg-dim); margin-left:6px; font-size:12px}
.toc a[aria-current="page"]{color:var(--accent); background:var(--accent-soft)}
.toc-footer{margin:0 0 28px; padding-bottom:28px; border-bottom:1px solid var(--line)}

/* 作品ショーケース（トップ） */
.works-grid{display:grid; gap:22px; grid-template-columns:repeat(auto-fill,minmax(min(340px,100%),1fr))}
.wcard{
  display:flex; flex-direction:column; text-decoration:none; color:inherit;
  background:var(--bg-card); border:1px solid var(--line); border-radius:14px;
  overflow:hidden; box-shadow:var(--shadow);
  transition:border-color .15s, transform .15s;
}
.wcard:hover{border-color:var(--accent); transform:translateY(-2px)}
.wcard-media{
  aspect-ratio:16/10; background:var(--chip); display:flex;
  align-items:center; justify-content:center; overflow:hidden;
  border-bottom:1px solid var(--line);
}
.wcard-media video,.wcard-media img.shot{width:100%; height:100%; object-fit:cover; display:block}
.wcard-media img.appicon{width:76px; height:76px; border-radius:16px}
.wcard-body{padding:18px 20px 20px; display:flex; flex-direction:column; gap:6px; flex:1}
.wcard-title{margin:0; font-size:18px; font-weight:700; line-height:1.4}
.wcard-sub{margin:0; font-size:14px; color:var(--fg-mid); flex:1}
.wcard-meta{display:flex; flex-wrap:wrap; gap:6px; margin-top:8px; align-items:center}
.wcard-more{margin-left:auto; font-size:13.5px; font-weight:600; color:var(--accent); white-space:nowrap}

/* extension cards（詳細ページ・旧トップ互換） */
.cards{display:grid; gap:20px}
.card{
  background:var(--bg-card); border:1px solid var(--line); border-radius:14px;
  padding:26px; box-shadow:var(--shadow);
}
.card-head{display:flex; gap:16px; align-items:flex-start; margin-bottom:14px}
.card-head img{width:52px; height:52px; border-radius:11px; flex:none; background:var(--chip)}
.card-title{margin:0; font-size:20px; font-weight:700; line-height:1.4}
.card-sub{margin:3px 0 0; font-size:13.5px; color:var(--fg-dim)}
.card p{margin:0 0 16px; color:var(--fg-mid); font-size:15px}
.points{margin:0 0 18px; padding:0; list-style:none}
.points li{position:relative; padding-left:19px; font-size:14.5px; color:var(--fg-mid); margin-bottom:5px}
.points li::before{content:""; position:absolute; left:4px; top:.72em; width:5px; height:5px; border-radius:50%; background:var(--accent); opacity:.65}
.chips{display:flex; flex-wrap:wrap; gap:7px; margin:0 0 18px}
.chip{font-size:12.5px; background:var(--chip); color:var(--fg-mid); border-radius:999px; padding:3px 11px; white-space:nowrap}
.links{display:flex; flex-wrap:wrap; gap:10px}
.btn{
  display:inline-block; font-size:14px; font-weight:600; text-decoration:none;
  padding:9px 17px; border-radius:9px; border:1px solid var(--line); color:var(--fg);
  background:var(--bg); transition:border-color .15s, color .15s;
}
.btn:hover{border-color:var(--accent); color:var(--accent)}
.btn-primary{background:var(--accent-soft); border-color:transparent; color:var(--accent)}
.btn-primary:hover{border-color:var(--accent)}

/* work list（詳細・業務実績） */
.work{border-left:2px solid var(--line); padding:0 0 4px 22px; margin-bottom:30px}
.work:last-child{margin-bottom:0}
.work h3{margin:0 0 10px; font-size:17px; font-weight:700}
.work dl{margin:0; display:grid; grid-template-columns:minmax(4.5em,max-content) 1fr; gap:5px 14px; font-size:14.5px}
.work dt{color:var(--fg-dim); font-weight:600; white-space:nowrap}
.work dd{margin:0; color:var(--fg-mid)}
.work video{width:100%; max-width:880px; display:block; border:1px solid var(--line); border-radius:10px; margin:2px 0 6px; background:#000}
.work .shot{width:100%; max-width:540px; display:block; border:1px solid var(--line); border-radius:10px; margin:2px 0 6px}
.videonote{color:var(--fg-dim); font-size:13px; margin:0 0 14px}

/* 詳細ページ */
.detail-header{padding:44px 0 36px; border-bottom:1px solid var(--line)}
.backlink{font-size:14px; font-weight:600; text-decoration:none; color:var(--fg-dim)}
.backlink:hover{color:var(--accent)}
.detail-header h1{font-size:clamp(24px,4.5vw,32px); margin:14px 0 8px}
.detail-header .card-sub{font-size:15px}
.detail-header .appicon{width:64px; height:64px; border-radius:14px; background:var(--chip); margin-top:18px}
.detail-body{padding:40px 0}
.detail-body .work{border-left:0; padding-left:0}
.detail-body h2.plain{font-size:17px; letter-spacing:.01em; text-transform:none; color:var(--fg); font-weight:700; margin:34px 0 12px}
.detail-body p.note{color:var(--fg-mid); font-size:15px; max-width:44em; margin:0 0 16px}

/* stance */
.stance p{color:var(--fg-mid); font-size:15px; max-width:44em}
.stance strong{color:var(--fg); font-weight:600}
.stance dl{margin:14px 0 0; display:grid; grid-template-columns:minmax(9.5em,max-content) 1fr; gap:6px 14px; font-size:14.5px; max-width:44em}
.stance dt{color:var(--fg-dim); font-weight:600}
.stance dd{margin:0; color:var(--fg-mid)}

footer{padding:44px 0 64px; color:var(--fg-dim); font-size:13.5px}
footer a{color:var(--fg-dim)}
.updated{margin:0 0 6px}

@media (max-width:600px){
  header{padding:52px 0 40px}
  section{padding:44px 0}
  .card{padding:22px}
  .work dl{grid-template-columns:1fr; gap:2px}
  .stance dl{grid-template-columns:1fr; gap:2px}
  .stance dt{margin-top:8px}
  .work dt{margin-top:8px}
}