:root{
  --bg:#fbfaf7; --fg:#1d1c1a; --muted:#7a766f; --line:#e4e0d8; --accent:#8a2c1f;
  --w:1080px; --pad:clamp(16px,4vw,40px);
  --sans:"Hiragino Kaku Gothic ProN","Hiragino Sans","Noto Sans JP","Yu Gothic","YuGothic",Meiryo,sans-serif;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#141412;--fg:#e9e6df;--muted:#9a958c;--line:#2c2b28;--accent:#e0806f;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#141412;--fg:#e9e6df;--muted:#9a958c;--line:#2c2b28;--accent:#e0806f;color-scheme:dark}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:15px/1.85 var(--sans);letter-spacing:.02em}
a{color:inherit;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--w);margin:0 auto;padding-left:max(var(--pad),env(safe-area-inset-left,0px));padding-right:max(var(--pad),env(safe-area-inset-right,0px))}
.muted{color:var(--muted)} .small{font-size:12.5px}
h1{font-size:20px;font-weight:600;margin:32px 0 20px;letter-spacing:.06em}
h1 .muted{font-size:13px;font-weight:400;margin-left:.6em}
h2{font-size:16px;font-weight:600;margin:40px 0 12px}
h3{font-size:14px;font-weight:600;margin:32px 0 8px;letter-spacing:.08em}

/* header */
.site-header{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(6px);
  display:flex;flex-wrap:wrap;gap:8px 24px;align-items:baseline;justify-content:space-between;padding:14px var(--pad);border-bottom:1px solid var(--line)}
.site-name{text-decoration:none;font-weight:600;letter-spacing:.12em}
.site-name .en{font-weight:400;color:var(--muted);font-size:12px;letter-spacing:.08em;margin-left:.4em}
.site-nav{display:flex;flex-wrap:wrap;gap:4px 18px;font-size:13px}
.site-nav a{text-decoration:none;color:var(--muted)}
.site-nav a[aria-current],.site-nav a:hover{color:var(--fg)}
.site-footer{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:40px var(--pad);margin-top:80px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.site-footer a{color:var(--muted)}

/* home */
.hero{display:block;max-width:var(--w);margin:24px auto 0;padding:0 var(--pad)}
.hero img{width:100%;max-height:72vh;object-fit:contain;background:var(--bg)}
.home-intro{max-width:720px;margin-top:40px}
.home-links{list-style:none;padding:0;margin:32px 0;border-top:1px solid var(--line)}
.home-links li{display:flex;gap:16px;align-items:baseline;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--line)}
.home-links a{text-decoration:none;font-weight:600;letter-spacing:.06em}
.recent{padding-left:1.2em}

/* controls */
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip,.seg-btn,.reader-nav button{font:inherit;font-size:12.5px;border:1px solid var(--line);background:transparent;color:var(--fg);padding:4px 12px;border-radius:999px;cursor:pointer}
.chip[aria-pressed=true],.seg-btn[aria-pressed=true]{background:var(--fg);color:var(--bg);border-color:var(--fg)}
.seg{display:inline-flex;gap:4px}
.sort{font-size:12.5px;color:var(--muted);display:flex;gap:8px;align-items:center}
.sort select{font:inherit;background:transparent;color:var(--fg);border:1px solid var(--line);border-radius:6px;padding:2px 6px}
.pf-controls{display:flex;flex-wrap:wrap;gap:12px 20px;align-items:center;margin-bottom:24px}

/* portfolio index */
.pf-index{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:32px 24px}
.pf-card{cursor:pointer;text-align:left;font:inherit;color:inherit;background:none;border:0;padding:0}
.pf-card img{width:100%;aspect-ratio:1.414;object-fit:cover;background:var(--line);border:1px solid var(--line)}
.pf-card strong{display:block;margin-top:8px;font-size:13.5px;font-weight:600;line-height:1.6}
.pf-card span{font-size:12px;color:var(--muted)}
.pf-card:hover strong{color:var(--accent)}

/* reader */
.reader-bar{display:flex;justify-content:space-between;gap:12px;font-size:13px;margin-bottom:8px}
.rd-section{font-weight:600}
.reader{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;outline:none;
  background:var(--bg)}
.reader::-webkit-scrollbar{display:none}
.reader .slide{flex:0 0 100%;scroll-snap-align:center;display:flex;align-items:center;justify-content:center;padding:0 var(--pad)}
.reader .slide img{max-height:max(360px,calc(100vh - 290px));width:auto;max-width:100%;object-fit:contain;box-shadow:0 1px 12px rgba(0,0,0,.06)}
.reader-nav{display:flex;gap:12px;align-items:center;margin-top:12px}
.reader-nav input{flex:1;accent-color:var(--fg)}
.rd-toc{columns:2 260px;font-size:12.5px;margin-top:32px;list-style-position:inside}
.rd-toc li{break-inside:avoid;cursor:pointer;color:var(--muted)}
.rd-toc li:hover,.rd-toc li.on{color:var(--fg)}
.pf-pdf{margin-top:32px}

/* drawings */
.dw-grid{columns:3 240px;column-gap:20px}
.dw{break-inside:avoid;margin:0 0 24px}
.dw figcaption{font-size:12px;margin-top:6px}

/* notes */
.note-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:32px 24px;margin-top:20px}
.note-card{display:flex;flex-direction:column;gap:4px;text-decoration:none}
.note-card img,.note-card .ph{width:100%;aspect-ratio:3/2;object-fit:cover;background:var(--line);margin-bottom:6px}
.note-card[hidden]{display:none}
.note{max-width:760px}

/* prose / cv */
.prose{max-width:760px}
.prose ul{padding-left:0;list-style:none}
.prose li{padding:3px 0 3px 0;border-bottom:1px dotted var(--line)}
.prose img{margin:20px 0}
.prose figure{margin:24px 0}
.cv-switch{margin:24px 0 0}
.cv h2{margin-top:24px}

/* lightbox */
.lightbox{position:fixed;inset:0;background:rgba(10,10,10,.92);display:flex;align-items:center;justify-content:center;z-index:100;cursor:zoom-out}
.lightbox img{max-width:94vw;max-height:92vh;object-fit:contain}

@media (max-width:640px){
  body{font-size:14px}
  .site-nav{gap:2px 14px}
}
.video{position:relative;aspect-ratio:16/9;max-width:720px;margin:12px 0}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.prose h3{border-top:1px solid var(--line);padding-top:16px}
.pf-only[hidden]{display:none}
.note-card[hidden]{display:none}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:11;background:var(--bg)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.prose table{border-collapse:collapse;display:block;overflow-x:auto}
.prose td,.prose th{border:1px solid var(--line);padding:4px 8px}

/* ===== トップページ：襖（後ろに作品、手前に紙のパネル） ===== */
:root{--paper:#f3ece7;--paper-ink:#1d1b1a;--paper-line:#bdb6b1;--name-en:#d7b9b9;
  --f-ja:"Sawarabi Gothic","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  --f-en:"Inter","Helvetica Neue",Arial,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,monospace}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--paper:#1e1b1a;--paper-ink:#ece6e2;--paper-line:#4a4441;--name-en:#a78585}}
:root[data-theme="dark"]{--paper:#1e1b1a;--paper-ink:#ece6e2;--paper-line:#4a4441;--name-en:#a78585}
html:has(body.is-home),body.is-home{height:100%}
body.is-home{overflow:hidden;background:var(--paper)}
body.is-home main{height:100%}
.fusuma{position:relative;height:100%;overflow:hidden}
.fs-art{position:absolute;inset:0;background:var(--paper)}
.fs-art-img{width:100%;height:100%;max-width:none;object-fit:cover;object-position:var(--pos-m,center);transform:scale(var(--zoom-m,1));transform-origin:var(--pos-m,center)}
.fs-caption{position:absolute;right:max(16px,env(safe-area-inset-right,0px));bottom:max(14px,env(safe-area-inset-bottom,0px));margin:0;
  font:11px/1.6 var(--f-en);color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.55);max-width:40ch;text-align:right}
.fs-panel{position:absolute;inset:0 auto 0 0;width:60%;max-width:340px;color:var(--paper-ink);
  display:flex;flex-direction:column;align-items:flex-start;
  padding-block:max(40px,calc(env(safe-area-inset-top,0px) + 32px)) max(22px,calc(env(safe-area-inset-bottom,0px) + 18px));
  padding-left:max(26px,env(safe-area-inset-left,0px));padding-right:18px;
  background:var(--paper);overflow-y:auto;
  transition:transform .7s cubic-bezier(.6,.05,.25,1);animation:fs-in .9s cubic-bezier(.3,.6,.2,1) backwards}
@keyframes fs-in{from{transform:translateX(-14px)}to{transform:none}}
.fusuma.is-open .fs-panel{transform:translateX(-100%)}
.fs-name{margin:0 0 34px;display:flex;flex-direction:column;gap:2px;font-weight:400}
.fs-name .ja{font-family:var(--f-ja);font-size:clamp(30px,9vw,40px);letter-spacing:.06em;line-height:1.25}
.fs-name .en{font-family:var(--f-mono);font-weight:500;font-size:clamp(15px,4.2vw,19px);letter-spacing:.04em;color:var(--name-en)}
.fs-nav{display:flex;flex-direction:column;gap:34px}
.fs-group{display:inline-flex;flex-direction:column}
.fs-group a{display:block;padding:10px 0 7px;border-bottom:1px solid var(--paper-line);text-decoration:none;
  font-family:var(--f-en);font-size:clamp(19px,5.6vw,22px);letter-spacing:.005em;color:var(--paper-ink);padding-right:2px}
.fs-group a:hover{color:var(--accent)}
.fs-group a:focus-visible{outline-offset:-1px}
/* 引手：ガビガビの手描き丸（content/top/hikite.png を拡大表示）。メニューのすぐ下に少し傾けて置く */
.fs-panel{--hk:url("../content/top/hikite.png")}
.fs-hikite{position:relative;margin-top:22px;margin-left:-4px;width:46px;height:46px;flex:none;padding:0;border:0;cursor:pointer;
  background:var(--paper-ink);-webkit-mask:var(--hk) center/100% 100% no-repeat;mask:var(--hk) center/100% 100% no-repeat;
  image-rendering:pixelated;transform:rotate(-11deg)}
.fs-hikite:hover{transform:rotate(-4deg) scale(1.08)}
.fs-hikite:focus-visible{outline:2px solid var(--accent);outline-offset:4px;-webkit-mask:none;mask:none;background:transparent}
.fs-links{margin-top:auto;padding-top:28px;display:flex;flex-wrap:nowrap;gap:12px;white-space:nowrap;font:12px/1.6 var(--f-en)}
.fs-links a{color:var(--muted);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.fs-links a:hover{color:var(--paper-ink)}
/* 襖が開いているときは、作品の左端に小さな引手を出して閉められるようにする */
.fs-close{position:absolute;left:max(16px,env(safe-area-inset-left,0px));bottom:max(20px,calc(env(safe-area-inset-bottom,0px) + 16px));width:44px;height:44px;padding:0;border:0;border-radius:50%;background:var(--paper);color:var(--paper-ink);cursor:pointer;
  opacity:0;pointer-events:none;transition:opacity .4s .3s;box-shadow:0 1px 6px rgba(0,0,0,.25)}
.fusuma.is-open .fs-close{opacity:1;pointer-events:auto}
@media (min-width:760px){
  .fs-panel{width:clamp(300px,24vw,400px);max-width:none;padding-left:max(56px,env(safe-area-inset-left,0px));padding-top:48px}
  .fs-name .ja{font-size:40px}.fs-name .en{font-size:19px}
  .fs-group a{font-size:22px}
  .fs-art-img{object-position:var(--pos-pc,center);transform:none}
}
@media (prefers-reduced-motion:reduce){.fs-panel{animation:none;transition:none}.fs-close{transition:none}}
.fs-close::before{content:"";position:absolute;inset:7px;background:var(--paper-ink);-webkit-mask:url("../content/top/hikite.png") center/100% 100% no-repeat;mask:url("../content/top/hikite.png") center/100% 100% no-repeat;transform:rotate(14deg)}
[hidden]{display:none!important}
.pf-card{display:flex;flex-direction:column;align-self:start}
.reader .slide{scroll-snap-stop:always}
.pf-head h1{margin-bottom:16px}
.reader-nav{margin-top:16px}
.rd-toc{list-style:none;columns:2 280px;column-gap:32px}
.rd-toc li{margin:0}
.rd-toc button{font:inherit;font-size:13px;color:var(--muted);background:none;border:0;border-bottom:1px solid var(--line);padding:8px 0;width:100%;text-align:left;cursor:pointer;display:flex;justify-content:space-between;gap:12px}
.rd-toc button span{font-size:11.5px;white-space:nowrap}
.rd-toc button:hover,.rd-toc button.on{color:var(--fg)}
.rd-toc button.on{font-weight:600}
/* 読む画面：高さを固定して、ページ送りで縦にずれないようにする */
.reader{height:max(360px,calc(100vh - 290px));overflow-y:hidden;touch-action:pan-x pinch-zoom;overscroll-behavior:contain}
.reader .slide{height:100%}
.reader .slide img{max-height:100%;height:auto}
@media (max-width:759px){.reader{height:min(calc((100vw - 32px) * 1.42),calc(100svh - 200px))}}
/* 読む画面（横につながるストリップ） */
.strip{position:relative;display:flex;overflow-x:auto;overflow-y:hidden;height:max(360px,calc(100vh - 250px));
  padding-left:max(var(--pad),env(safe-area-inset-left,0px));padding-right:max(var(--pad),env(safe-area-inset-right,0px));
  touch-action:pan-x pinch-zoom;overscroll-behavior-x:contain;scrollbar-width:thin;scrollbar-color:var(--line) transparent;outline:none}
.strip:focus-visible{box-shadow:inset 0 0 0 2px var(--accent)}
.pg{flex:0 0 auto;height:100%;aspect-ratio:900/1273;margin:0;background:#fff}
.pg img{display:block;width:100%;height:100%;max-width:none;object-fit:contain;opacity:0;transition:opacity .25s}
.pg.ok img{opacity:1}
.pg-end{margin-right:14px}
.pg:last-child{margin-right:0}
@media (max-width:759px){.strip{height:min(calc((100vw - 32px) * 1.414),calc(100svh - 190px))}}
@media (prefers-reduced-motion:reduce){.pg img{transition:none}}
/* ドローイング：行の高さをそろえた一覧（キャプションなし） */
.jg{display:flex;flex-wrap:wrap;gap:8px;max-width:1400px;margin:0 auto;
  padding-left:max(var(--pad),env(safe-area-inset-left,0px));padding-right:max(var(--pad),env(safe-area-inset-right,0px));box-sizing:content-box}
.jg-item{display:block;flex:none;background:var(--line);overflow:hidden;cursor:zoom-in}
.jg-item img{width:100%;height:100%;max-width:none;object-fit:cover;display:block;transition:opacity .2s}
.jg-item:hover img{opacity:.88}
.dw-lb{background:rgba(250,249,246,.97);cursor:default}
.dw-lb img{max-width:94vw;max-height:90vh;box-shadow:0 2px 24px rgba(0,0,0,.12)}
.lb-x{position:absolute;top:max(12px,env(safe-area-inset-top,0px));right:max(14px,env(safe-area-inset-right,0px));font:28px/1 var(--sans);background:none;border:0;color:#333;cursor:pointer;padding:8px}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .dw-lb{background:rgba(20,20,18,.97)}:root:not([data-theme="light"]) .lb-x{color:#eee}}
.jg-head{max-width:1400px;box-sizing:content-box}