/* D.sign — dsign.art
   The page is laid out the way the current work is laid out. In TORSO No.001 a vermilion
   band stands at 39.6% of the width; here the same band stands at 39.6% of the window and
   runs the full height, behind the paper. Words sit on either side of it; where the picture
   is shown edge to edge, its own band continues the page's.
   Colours are taken from the work. Change --band-x / --band-w / --shu with the next work. */

:root{
  /* from TORSO No.001 */
  --shu:#c6511a;          /* 朱 the band */
  --shu-ink:#a8410f;      /* 朱 dark enough to read as text */
  --kihada:#e6d39d;       /* 淡い黄色 */
  --fuji:#b59cb6;         /* 藤色 */
  --seiheki:#1f6a7c;      /* 青緑 links and focus */
  --band-x:39.6%;         /* where the band stands in the work (of the page width, scrollbar excluded) */
  --band-w:9.6%;
  /* the wall */
  --wall:#ebe9e6;
  --ink:#24211d;
  --ink-soft:#6c665e;
  --rule:#c9c4bc;
  --sig:#4988a2;
  /* type */
  --f-mark:"EB Garamond","Garamond",serif;
  --f-en:"EB Garamond","Garamond","Times New Roman",serif;
  --f-mincho:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --f-gothic:"Zen Kaku Gothic New","Hiragino Sans","Yu Gothic",system-ui,sans-serif;
  --f-prose:var(--f-mincho);
  --f-ui:var(--f-gothic);
  --margin:max(20px,3vw);
  --gutter:clamp(28px,3.2vw,56px);
  color-scheme:light;
}
html[data-lang="en"]{--f-prose:var(--f-en)}
html[data-lang="zh"]{--f-prose:"Noto Serif SC","Songti SC","SimSun",serif;--f-ui:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;--f-mincho:"Noto Serif SC","Songti SC",serif}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:24px;
  touch-action:pan-x pan-y}  /* the page never zooms (pinch, double tap): it is laid out like the work; coming closer happens in the work */
/* iOS Safari lets a pinch through while the page is still gliding after a flick. If it did zoom,
   site.js marks the page and lets go, so it can be pinched (or double-tapped) back; at 1× it locks again */
html.is-zoomed{touch-action:auto}
body{margin:0;min-height:100vh;color:var(--ink);font-family:var(--f-ui);font-size:15px;line-height:1.8;
  background:var(--wall) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:overlay;
  font-kerning:normal;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
img.is-peek{position:relative;z-index:40;will-change:transform}
a{color:inherit}
:focus-visible{outline:2px solid var(--seiheki);outline-offset:3px}
::selection{background:var(--kihada);color:var(--ink)}
[hidden]{display:none!important}

/* language: every text exists three times; only the chosen one shows */
html[data-lang="ja"] [data-l]:not([data-l="ja"]),
html[data-lang="en"] [data-l]:not([data-l="en"]),
html[data-lang="zh"] [data-l]:not([data-l="zh"]),
html:not([data-lang]) [data-l]:not([data-l="ja"]){display:none!important}

/* ---------- the band ---------- */
.band{position:fixed;top:0;bottom:0;left:var(--band-x);width:var(--band-w);z-index:0;pointer-events:none;
  background:var(--shu) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:soft-light}
.page{position:relative;z-index:1}

/* two fields either side of the band */
.split{display:grid;grid-template-columns:[full-start] var(--margin) [left-start] calc(var(--band-x) - var(--margin) - var(--gutter)) [left-end] calc(var(--band-w) + 2*var(--gutter)) [right-start] minmax(0,1fr) [right-end] var(--margin) [full-end]}
.split > .l{grid-column:left}
.split > .r{grid-column:right}
.split > .full{grid-column:full}

/* ---------- header ---------- */
/* one line on every screen: the name, the language, the menu. Where to go is all in the menu. */
.site-head{position:sticky;z-index:5;top:calc(-1 * var(--head-h,96px) - 2px);padding-top:calc(24px + env(safe-area-inset-top,0px));padding-bottom:28px;align-items:baseline;
  transition:top .38s cubic-bezier(.2,.7,.2,1)}
/* far down a page, scrolling a little way back up brings the line back, quietly, as a strip of the
   same paper with the band running through it; going on down puts it away again (site.js) */
.site-head.is-back{top:0;background:var(--wall) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:overlay;
  box-shadow:0 1px 0 rgba(36,33,29,.07),0 12px 24px -20px rgba(36,33,29,.4)}
.site-head.is-back.is-hiding{top:calc(-1 * var(--head-h,96px) - 2px)}
.site-head.is-back::before{content:"";position:absolute;top:0;bottom:0;left:var(--band-x);width:var(--band-w);z-index:-1;pointer-events:none;
  background:var(--shu) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:soft-light}
.site-head > .mark{grid-column:left;grid-row:1;justify-self:start}
.site-head > .lang{grid-column:right;grid-row:1;justify-self:start}
.site-head > .menu-toggle{grid-column:right;grid-row:1;justify-self:end}
.mark{font-family:var(--f-mark);font-weight:500;font-size:28px;line-height:1;letter-spacing:.02em;color:var(--ink);text-decoration:none}
.mark .kd{margin-right:-.09em}.mark .kp{margin-right:-.04em}
/* the language: three short marks, out of the way */
.lang{display:flex;gap:2px;flex:none;margin-left:-5px}
.lang button{font:inherit;font-family:var(--f-gothic);font-size:12px;letter-spacing:.12em;color:var(--ink-soft);background:none;border:0;padding:4px 5px;cursor:pointer}
.lang button[aria-pressed="true"]{color:var(--ink);text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.menu-toggle{font:inherit;font-family:var(--f-ui);font-size:14px;letter-spacing:.08em;background:none;border:0;padding:6px 0;color:var(--ink);cursor:pointer;
  text-decoration:underline;text-underline-offset:6px;text-decoration-thickness:1px}
@media (hover:hover){.lang button:hover{color:var(--ink)}.menu-toggle:hover{color:var(--shu-ink)}}
.menu-toggle .when-open,.menu-toggle[aria-expanded="true"] .when-closed{display:none}
.menu-toggle[aria-expanded="true"] .when-open{display:inline}
/* while the menu is open, this line stays where it is, above it */
html.menu-open .site-head > :not(.site-nav){position:relative;z-index:30}

/* ---------- the menu ---------- */
/* the works first, each with a few words on what it is; then the pages about D.sign in the order
   they are meant to be read; then the way to have one */
.site-nav{position:fixed;inset:0;z-index:20;overflow:auto;overscroll-behavior:contain;
  padding:calc(96px + env(safe-area-inset-top,0px)) var(--margin) 48px;
  background:var(--wall) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:overlay;
  visibility:hidden;opacity:0;transition:opacity .2s,visibility 0s .2s}
.site-nav[data-open="true"]{visibility:visible;opacity:1;transition:opacity .2s}
.site-nav ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.site-nav a{display:block;color:var(--ink);text-decoration:none;font-family:var(--f-mincho);font-size:26px;line-height:1.35;letter-spacing:.04em}
.site-nav .works a,html[data-lang="en"] .site-nav a{font-family:var(--f-en);font-size:28px;letter-spacing:.02em}
.site-nav .about,.site-nav .buy{margin-top:34px}
.site-nav .group-h{margin:0 0 10px;font-family:var(--f-ui);font-size:12px;line-height:1.6;letter-spacing:.18em;color:var(--ink-soft)}
.site-nav .desc{display:block;margin-top:3px;font-family:var(--f-ui);font-size:12px;line-height:1.5;letter-spacing:.06em;color:var(--ink-soft)}
.site-nav .nm{text-underline-offset:.16em;text-decoration-thickness:1px}
.site-nav a:hover .nm,.site-nav a:focus-visible .nm{text-decoration-line:underline}
.site-nav a[aria-current="page"]{color:var(--shu-ink)}
.site-nav .ext::after{content:"↗";font-family:var(--f-gothic);font-size:.72em;margin-left:.2em;color:var(--ink-soft)}
/* on a wide screen the menu takes the page's own two fields: the works left of the band, the rest right of it */
@media (min-width:1000px){
  .site-nav{display:grid;align-content:start;padding:calc(132px + env(safe-area-inset-top,0px)) 0 72px;
    grid-template-columns:[full-start] var(--margin) [left-start] calc(var(--band-x) - var(--margin) - var(--gutter)) [left-end] calc(var(--band-w) + 2*var(--gutter)) [right-start] minmax(0,1fr) [right-end] var(--margin) [full-end]}
  .site-nav::before{content:"";position:fixed;top:0;bottom:0;left:var(--band-x);width:var(--band-w);z-index:-1;pointer-events:none;
    background:var(--shu) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:soft-light}
  .site-nav .works{grid-column:left;grid-row:1}
  .site-nav .row2{grid-column:right;grid-row:1}
  .site-nav .about{margin-top:0}
  .site-nav .buy{margin-top:52px}
  .site-nav .group-h{margin-bottom:22px}
  .site-nav ul{gap:22px}
  .site-nav .works ul{gap:30px}
  .site-nav a{font-size:28px}
  .site-nav .works a{font-size:42px;line-height:1.1}
  html[data-lang="en"] .site-nav .row2 a{font-size:30px}
  .site-nav .desc{font-size:13px;margin-top:7px}
}

/* ---------- type ---------- */
.prose{font-family:var(--f-prose);font-size:18px;line-height:2.05;letter-spacing:.02em;max-width:34em}
html[data-lang="en"] .prose{font-size:20px;line-height:1.62;letter-spacing:0;max-width:31em;hyphens:manual;text-wrap:pretty}
html[data-lang="zh"] .prose{font-size:18px;line-height:2;letter-spacing:.03em}
.prose p{margin:0 0 1.15em}
.prose p:last-child{margin-bottom:0}
.prose .ask{margin-top:2.2em;font-size:1.12em}
html[data-lang="en"] .prose .ask{font-style:italic}
.title{font-family:var(--f-mincho);font-weight:400;font-size:clamp(34px,3.6vw,52px);line-height:1.3;letter-spacing:.06em;margin:0}
html[data-lang="en"] .title{font-family:var(--f-en);letter-spacing:.01em;font-size:clamp(38px,4vw,58px)}
.kicker{font-size:13px;letter-spacing:.12em;color:var(--ink-soft);margin:0 0 10px}
.small{font-size:13px;color:var(--ink-soft);letter-spacing:.04em}
.link{color:var(--seiheki);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:5px}
.link:hover{color:var(--ink)}

/* ---------- sheets: blocks of paper laid over the band (small screens) ---------- */
.sheet{position:relative}

/* ---------- back to the top (phones) ---------- */
/* at the very end of a page a small ↑ appears in the corner and takes you back up (site.js) */
.to-top{position:fixed;z-index:15;right:calc(var(--margin) + env(safe-area-inset-right,0px));bottom:calc(18px + env(safe-area-inset-bottom,0px));
  width:44px;height:44px;display:grid;place-items:center;padding:0;border:1px solid var(--rule);border-radius:50%;
  background:rgba(235,233,230,.94);color:var(--ink);box-shadow:0 1px 6px rgba(36,33,29,.12);cursor:pointer;-webkit-tap-highlight-color:transparent;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .3s,transform .3s,visibility 0s .3s}
.to-top.is-on{opacity:1;visibility:visible;transform:none;transition:opacity .3s,transform .3s}
html.menu-open .to-top{opacity:0;visibility:hidden}
@media (min-width:1000px){.to-top{display:none}}

/* ---------- footer ---------- */
.site-foot{padding:120px 0 calc(48px + env(safe-area-inset-bottom,0px));font-size:13px;color:var(--ink-soft);letter-spacing:.04em}
.site-foot a{color:inherit;text-decoration:none;border-bottom:1px solid var(--rule)}
.site-foot a:hover{color:var(--ink);border-color:var(--ink)}
.site-foot .who{font-family:var(--f-mincho);font-size:17px;color:var(--ink);letter-spacing:.14em;margin:0}
.site-foot .who span{display:block;font-family:var(--f-en);font-size:15px;letter-spacing:.06em;color:var(--ink-soft)}
.site-foot ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px 22px}

/* ---------- small screens: one column; the band runs behind the paper ---------- */
@media (max-width:999px){
  :root{--gutter:0px}
  .split{grid-template-columns:[full-start] var(--margin) [left-start right-start] minmax(0,1fr) [left-end right-end] var(--margin) [full-end]}
  /* the band runs behind sheets of paper; it shows in the gaps between them */
  .sheet{background:var(--wall) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:overlay;padding-block:26px}
  .split > .sheet{justify-self:stretch;text-align:left}
  .site-head{grid-template-columns:[full-start] var(--margin) [left-start] calc(var(--band-x) - var(--margin) - 8px) [left-end] calc(var(--band-w) + 16px) [right-start] minmax(0,1fr) [right-end] var(--margin) [full-end];padding-bottom:22px}
  .prose{font-size:17px;line-height:2}
  html[data-lang="en"] .prose{font-size:19px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---------- full-size viewer (TORSO works) ---------- */
.work-view{position:relative;z-index:2;background:var(--wall) url(../img/washi.jpg) 0 0/768px repeat;background-blend-mode:overlay}
.viewer-stage{width:100%;height:min(56.03vw,calc(100svh - 196px));min-height:320px;position:relative}
.viewer-stage .openseadragon-canvas:focus-visible{outline:2px solid var(--seiheki);outline-offset:-2px}
.work-view.is-static .viewer-stage{display:none}
.viewer-static{display:none}
.work-view.is-static .viewer-static{display:block;width:100%}
.viewer-bar{padding-block:18px 14px;align-items:start;font-size:13px;letter-spacing:.06em}
/* where you stand: one rule from the whole to the pixels, with full size marked on it; the vermilion
   mark is you, and it moves as you come closer. The steps at either end go one stop nearer or further. */
.controls{display:flex;align-items:flex-start;gap:16px;min-width:0}
.controls .step{flex:none;width:34px;height:34px;margin-top:-4px;display:grid;place-items:center;padding:0 0 2px;
  border:1px solid var(--ink-soft);border-radius:0;background:transparent;color:var(--ink);font:400 22px/1 var(--f-en);cursor:pointer;
  transition:border-color .2s,background-color .2s,color .2s}
.controls .step:hover{border-color:var(--ink);background:rgba(36,33,29,.06)}
.controls .step[aria-disabled="true"]{border-color:var(--rule);color:var(--rule);background:transparent;cursor:default}
.track{position:relative;flex:1 1 auto;min-width:150px;max-width:360px;height:46px}
.track::before{content:"";position:absolute;left:0;right:0;top:13px;border-top:1px solid var(--ink)}
.stop{position:absolute;top:0;left:0;width:32px;height:46px;margin-left:-16px;padding:0;border:0;background:none;cursor:pointer;
  color:var(--ink-soft);font:12px/1 var(--f-ui);letter-spacing:.14em;white-space:nowrap;-webkit-tap-highlight-color:transparent}
.stop::before{content:"";position:absolute;left:50%;top:6px;width:1px;height:15px;background:var(--ink)}  /* the tick */
.stop.minor::before{top:9px;height:9px}
.stop .lbl{position:absolute;top:27px;left:50%;transform:translateX(-50%);padding:3px 6px 2px;line-height:1.2;transition:color .2s,background-color .2s}
.stop.first .lbl{transform:translateX(-6px)}
.stop.last .lbl,.stop.tuck .lbl{left:auto;right:50%;transform:translateX(6px)}
html[data-lang="en"] .stop{letter-spacing:.04em}
.stop.minor .lbl{opacity:0;top:25px;font:15px/1.2 var(--f-en);letter-spacing:0;color:var(--ink)}
.stop:hover,.stop[aria-current="true"]{color:var(--ink)}
.stop.minor:hover .lbl,.stop.minor:focus-visible .lbl{opacity:1}
.stop[data-stop="full"][aria-current="true"] .lbl{background:var(--shu);color:var(--wall)}
.stop:focus-visible{outline:none}
.stop:focus-visible .lbl{outline:2px solid var(--seiheki);outline-offset:1px}
.here{position:absolute;top:2px;left:0;width:3px;height:23px;margin-left:-1px;background:var(--shu);pointer-events:none}
/* beside it, on the same two lines: how big what you see is, and how to move; filling the screen at the end */
.viewer-side{display:grid;grid-template-columns:minmax(0,1fr) auto;column-gap:28px;row-gap:9px;align-items:center}
.scale{grid-column:1;grid-row:1;height:20px;margin-top:3px;display:flex;align-items:center;gap:12px;color:var(--ink-soft)}
.scale-bar{display:inline-block;height:7px;border:1px solid var(--ink);border-top:0;width:80px;transition:width .15s}
.scale-label{font-family:var(--f-en);font-size:16px;color:var(--ink);min-width:3.5em}
.screen-btn{grid-column:2;grid-row:1 / span 2;align-self:start;margin-top:-4px;display:inline-flex;align-items:center;gap:9px;height:34px;padding:0 15px;border:1px solid var(--ink-soft);border-radius:0;
  background:transparent;color:var(--ink);font:13px/1 var(--f-ui);letter-spacing:.08em;cursor:pointer;transition:border-color .2s,background-color .2s}
.screen-btn:hover{border-color:var(--ink);background:rgba(36,33,29,.06)}
.screen-btn .back-label{display:none}
.work-view.is-full .screen-btn .fill-label{display:none}
.work-view.is-full .screen-btn .back-label{display:inline}
/* the mouse: the pointer says what a click will do — come closer, or, at the pixels, go back to the whole */
.work-view[data-click="in"] .openseadragon-canvas{cursor:zoom-in}
.work-view[data-click="out"] .openseadragon-canvas{cursor:zoom-out}
.work-view.is-dragging .openseadragon-canvas{cursor:grabbing}
.viewer-hint{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:3;pointer-events:none;
  background:rgba(36,33,29,.78);color:#f3f1ee;font-size:14px;letter-spacing:.06em;padding:10px 16px;opacity:0;transition:opacity .25s;
  width:max-content;max-width:calc(100% - 32px);text-align:center;text-wrap:balance;word-break:auto-phrase}
.viewer-hint[data-show="true"]{opacity:1}
.viewer-hint > span{display:none}
.viewer-hint[data-for="wheel"] .for-wheel,.viewer-hint[data-for="touch"] .for-touch,.viewer-hint[data-for="end"] .for-end{display:inline}
.viewer-how .for-touch,.work-view.is-touch .viewer-how .for-mouse{display:none}
.work-view.is-touch .viewer-how .for-touch{display:inline}
/* fingers: on the page the picture itself (or the button on its corner) opens it to the full screen;
   the controls come with it there */
.work-view.is-touch:not(.is-full) .controls,.work-view.is-touch:not(.is-full) .screen-btn{display:none}
.viewer-open{display:none}
.work-view.is-touch:not(.is-full) .viewer-open{display:flex;align-items:center;gap:8px;position:absolute;z-index:3;
  top:12px;right:calc(12px + env(safe-area-inset-right,0px));height:40px;padding:0 15px 0 13px;border:1px solid var(--rule);border-radius:20px;
  background:rgba(235,233,230,.92);color:var(--ink);font:13px/1 var(--f-ui);letter-spacing:.06em;cursor:pointer;box-shadow:0 1px 6px rgba(36,33,29,.12)}
.viewer-close{display:none}
.work-view.is-full .viewer-close{display:block;position:absolute;z-index:4;top:calc(12px + env(safe-area-inset-top,0px));right:calc(12px + env(safe-area-inset-right,0px));
  width:44px;height:44px;padding:0;border:0;border-radius:50%;background:rgba(235,233,230,.88);color:var(--ink);font:300 26px/44px var(--f-ui);cursor:pointer;
  box-shadow:0 1px 6px rgba(36,33,29,.18)}
.work-view.is-full .viewer-close:hover{background:var(--wall)}
.viewer-how{grid-column:1;grid-row:2;margin:0;color:var(--ink-soft);word-break:auto-phrase;text-wrap:pretty}
.work-view.is-full{position:fixed;inset:0;z-index:60;display:grid;grid-template-rows:minmax(0,1fr) auto;touch-action:none;overscroll-behavior:contain}
.work-view.is-full .viewer-stage{height:auto;min-height:0}
.work-view.is-full .viewer-bar{padding-bottom:calc(14px + env(safe-area-inset-bottom,0px))}
@media (max-width:999px){
  .viewer-stage{height:max(calc(56.03vw + 96px),44svh)}
  .viewer-bar{row-gap:14px}
  .track{max-width:none}
  .viewer-how{display:none}
  .work-view.is-touch:not(.is-full) .viewer-how{display:block;font-size:13px}
}
@media (pointer:coarse){
  .controls .step{width:44px;height:44px;margin-top:-9px}
  .stop{width:40px;margin-left:-20px}
  .screen-btn{height:44px}
}