:root{
  --bg:#e9ecf0; --panel:#f8f9fb; --ink:#18202b; --muted:#5b6676; --line:#cfd5de;
  --accent:#c56a12; --accent-ink:#ffffff; --sel:#2563eb; --paper-shadow:0 1px 3px rgba(20,30,45,.18),0 6px 18px rgba(20,30,45,.08);
  --ui:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#12161c; --panel:#1b2129; --ink:#e6eaf0; --muted:#97a2b2; --line:#2e3742;
  --accent:#e08a35; --accent-ink:#1a1006; --sel:#6ea0ff; --paper-shadow:0 1px 3px rgba(0,0,0,.5),0 8px 22px rgba(0,0,0,.35); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#12161c; --panel:#1b2129; --ink:#e6eaf0; --muted:#97a2b2; --line:#2e3742;
  --accent:#e08a35; --accent-ink:#1a1006; --sel:#6ea0ff; --paper-shadow:0 1px 3px rgba(0,0,0,.5),0 8px 22px rgba(0,0,0,.35); color-scheme:dark}
*,*::before,*::after{box-sizing:border-box}
html,body{height:100%;margin:0}
img{max-width:100%}
[hidden]{display:none!important}
body{background:var(--bg);color:var(--ink);font-family:var(--ui);font-size:14px;overflow:hidden}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--sel);outline-offset:2px}
svg.i{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
#app{height:100%;display:grid;grid-template-rows:auto auto 1fr auto;grid-template-areas:"top" "view" "main" "tools"}
header#top{grid-area:top;display:flex;align-items:center;gap:12px;background:var(--panel);border-bottom:1px solid var(--line);
  padding-top:calc(8px + env(safe-area-inset-top,0px));padding-bottom:8px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.brand{font-weight:600;letter-spacing:-.01em;font-size:16px;white-space:nowrap}
.brand b{color:var(--accent);font-weight:600}
.fname{flex:1;min-width:0;color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fname .tag{font-family:var(--mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;border:1px solid var(--line);border-radius:4px;padding:1px 5px;margin-inline-start:6px;color:var(--accent)}
.grp{display:flex;gap:6px;flex:none}
.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);font-weight:500;white-space:nowrap}
.btn:hover{border-color:var(--muted)}
.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
#viewbar{grid-area:view;display:flex;align-items:center;gap:4px;background:var(--panel);border-bottom:1px solid var(--line);
  padding-block:4px;padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(12px,env(safe-area-inset-right,0px));overflow-x:auto}
.ib{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;border-radius:8px;padding:0 8px;gap:6px;color:var(--ink)}
.ib:hover{background:var(--bg)}
.ib[disabled]{opacity:.35;cursor:default}
.ib.on{background:var(--accent);color:var(--accent-ink)}
.num{font-family:var(--mono);font-size:12.5px;font-variant-numeric:tabular-nums;min-width:62px}
.sp{flex:1}
#main{grid-area:main;padding-bottom:0;display:flex;min-height:0;position:relative}
#thumbs{width:150px;flex:none;overflow-y:auto;background:var(--panel);border-inline-end:1px solid var(--line);padding:12px 10px;display:flex;flex-direction:column;gap:14px}
#thumbs[hidden]{display:none!important}
.th{display:flex;flex-direction:column;align-items:center;gap:4px}
.th canvas{background:#fff;box-shadow:var(--paper-shadow);max-width:110px;cursor:pointer;border:2px solid transparent;border-radius:2px}
.th.cur canvas{border-color:var(--accent)}
.th .row{display:flex;align-items:center;gap:0}
.th .row .ib{min-width:26px;height:26px;padding:0 3px}
.th .row svg.i{width:15px;height:15px}
.th .n{font-family:var(--mono);font-size:11px;color:var(--muted)}
#viewer{flex:1;min-width:0;overflow:auto;position:relative;-webkit-overflow-scrolling:touch}
#pages{display:flex;flex-direction:column;align-items:center;gap:18px;padding:18px 12px 40px;min-width:min-content}
.pg{position:relative;background:#fff;box-shadow:var(--paper-shadow);flex:none}
.pg::before{content:var(--t-loading,"Loading page…");position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#8a93a0;font-size:13px}
.pg.ok::before{content:none}
.pg canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.pg svg.ov{position:absolute;inset:0;width:100%;height:100%;touch-action:pan-x pan-y}
#viewer{touch-action:pan-x pan-y}
body.drawing .pg svg.ov{touch-action:none;cursor:crosshair}
.pgn{position:absolute;left:0;bottom:-16px;font-family:var(--mono);font-size:10.5px;color:var(--muted)}
.ann{cursor:move;touch-action:none}
.lnk rect{fill:#2563eb;fill-opacity:0;cursor:pointer}
.lnk:hover rect,.lnk:focus rect{fill-opacity:.15}
#pages.pinch{transform-origin:0 0}
#selbar{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);display:flex;gap:4px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:4px;box-shadow:var(--paper-shadow);z-index:5}
#tools{grid-area:tools;background:var(--panel);border-top:1px solid var(--line);display:flex;align-items:center;gap:2px;overflow-x:auto;
  padding-top:6px;padding-bottom:calc(6px + env(safe-area-inset-bottom,0px));padding-left:max(10px,env(safe-area-inset-left,0px));padding-right:max(10px,env(safe-area-inset-right,0px))}
.tool{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:58px;padding:6px 4px;border-radius:10px;font-size:11px;color:var(--muted);flex:none}
.tool.on{background:var(--accent);color:var(--accent-ink)}
.tool:hover:not(.on){background:var(--bg);color:var(--ink)}
.sep{width:1px;align-self:stretch;background:var(--line);margin:4px 6px;flex:none}
.sw{width:26px;height:26px;border-radius:50%;border:2px solid var(--panel);box-shadow:0 0 0 1px var(--line);flex:none;margin:0 3px}
.sw.on{box-shadow:0 0 0 2px var(--ink)}
@media (min-width:900px){
  #tools{padding-bottom:6px!important}
  #app{grid-template-areas:"top" "view" "tools" "main";grid-template-rows:auto auto auto 1fr}
  #tools{border-top:0;border-bottom:1px solid var(--line);padding-bottom:6px}
  .tool{flex-direction:row;gap:6px;font-size:12.5px;min-width:0;padding:7px 10px}
}
@media (max-width:899px){
  #thumbs{position:absolute;inset-block:0;inset-inline-start:0;z-index:6;box-shadow:4px 0 18px rgba(0,0,0,.2);width:160px}
  .hide-s{display:none}
}
#sheetWrap{position:fixed;inset:0;z-index:20;display:flex;align-items:flex-end;justify-content:center}
@media (min-width:700px){#sheetWrap{align-items:center}}
.scrim{position:absolute;inset:0;background:rgba(10,14,20,.45)}
.sheet{position:relative;background:var(--panel);width:min(560px,100%);max-height:88vh;overflow:auto;border-radius:16px 16px 0 0;
  padding:16px max(18px,env(safe-area-inset-right,0px)) calc(18px + env(safe-area-inset-bottom,0px)) max(18px,env(safe-area-inset-left,0px));display:flex;flex-direction:column;gap:14px}
@media (min-width:700px){.sheet{border-radius:16px}}
.sh-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.sh-head h2{margin:0;font-size:17px;font-weight:600;text-wrap:balance}
.field{display:flex;flex-direction:column;gap:6px}
.field>span{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-weight:500}
input[type=text],input[type=number],select,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:9px 10px;width:100%;box-sizing:border-box}
textarea{min-height:110px;resize:vertical}
.row2{display:flex;gap:10px;flex-wrap:wrap}
.row2>*{flex:1;min-width:120px}
.opts{display:flex;flex-direction:column;gap:6px}
.opt{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.opt:has(input:checked){border-color:var(--accent);background:color-mix(in srgb,var(--accent) 9%,transparent)}
.opt b{display:block;font-weight:500}
.opt small{color:var(--muted);font-size:12.5px}
.acts{display:flex;gap:8px;justify-content:flex-end;flex-wrap:wrap}
.menu{display:flex;flex-direction:column;gap:6px}
.menu button{display:flex;gap:12px;align-items:center;text-align:start;padding:12px;border:1px solid var(--line);border-radius:10px}
.menu button:hover{border-color:var(--accent)}
.menu small{display:block;color:var(--muted);font-size:12.5px}
.note{font-size:12.5px;color:var(--muted);line-height:1.5;margin:0}
#sigPad{width:100%;height:180px;background:#fff;border:1px dashed var(--line);border-radius:10px;touch-action:none;display:block}
.res{display:flex;flex-direction:column;gap:4px;max-height:45vh;overflow:auto}
.res button{text-align:start;padding:8px 10px;border-radius:8px;border:1px solid var(--line);font-size:13px}
.res button b{font-family:var(--mono);font-weight:500;color:var(--accent);margin-inline-end:6px}
#toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(86px + env(safe-area-inset-bottom,0px));background:var(--ink);color:var(--bg);padding:10px 14px;border-radius:10px;z-index:30;max-width:min(90vw,460px);font-size:13px;line-height:1.4}
#busy{position:fixed;inset:0;z-index:25;background:rgba(10,14,20,.35);display:flex;align-items:center;justify-content:center}
#busy div{background:var(--panel);padding:14px 18px;border-radius:12px;font-weight:500}
#drop{position:absolute;inset:8px;border:2px dashed var(--accent);border-radius:14px;z-index:7;display:flex;align-items:center;justify-content:center;font-weight:600;background:color-mix(in srgb,var(--bg) 80%,transparent)}
#convHold{position:fixed;left:-20000px;top:0;width:0;height:0;overflow:visible}
#conv{background:#fff;color:#111;font-family:Arial,Helvetica,sans-serif;font-size:12pt;line-height:1.45}
#conv table{border-collapse:collapse;font-size:9pt}
#conv .xl{table-layout:fixed;font-size:8.5pt;line-height:1.25}
#conv .xl td{border:1px solid #b9bec7;padding:2px 4px;overflow:hidden;word-wrap:break-word;vertical-align:middle}
#conv .xbtn{display:inline-block;background:#3e6bb8;color:#fff;border-radius:4px;padding:1px 7px;text-decoration:none;font-size:8pt;font-weight:bold}
#conv a{color:#1d4ed8}
#conv td[style*="color:#fff"] a:not(.xbtn){color:#fff}
#conv .shTitle{font:600 11pt Arial,sans-serif;margin:0 0 6px}
#conv td,#conv th{border:1px solid #999;padding:3px 5px;vertical-align:top}
#conv h2{font-size:13pt;margin:0 0 8px}
#conv img{max-width:100%}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

#app{grid-template-rows:auto 1fr auto;grid-template-columns:minmax(0,1fr);grid-template-areas:"top" "main" "dock"}
#top,#main,#dock{min-width:0}
header#top{gap:10px;padding-bottom:8px}
.brand{font-size:17px;padding:4px 2px;flex:none}
.doc{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.2}
.doc .fname{flex:none;color:var(--ink);font-weight:600;font-size:14px}
.fmeta{font-size:11.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.doc .fname,.fmeta{unicode-bidi:plaintext;text-align:start}
.grp{align-items:center}
#dock{grid-area:dock;background:var(--panel);border-top:1px solid var(--line);display:flex;flex-direction:column;padding-bottom:env(safe-area-inset-bottom,0px)}
#strip{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none;padding-block:8px;padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(12px,env(safe-area-inset-right,0px));border-bottom:1px solid var(--line);min-height:52px}
#strip::-webkit-scrollbar{display:none}
#tabs{display:grid;grid-template-columns:repeat(5,1fr);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}
.tab{display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 2px 7px;font-size:11px;font-weight:500;color:var(--muted);position:relative}
.tab svg.i{width:22px;height:22px}
.tab.on{color:var(--accent)}
.tab.on::before{content:"";position:absolute;top:0;left:28%;right:28%;height:3px;border-radius:0 0 3px 3px;background:var(--accent)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 12px;border-radius:999px;border:1px solid var(--line);background:var(--bg);font-size:13px;font-weight:500;white-space:nowrap;flex:none;color:var(--ink)}
.chip svg.i{width:17px;height:17px}
.chip:hover{border-color:var(--muted)}
.chip.on{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.chip.ghost{background:transparent;border-color:transparent;color:var(--muted)}
.dot{width:16px;height:16px;border-radius:50%;box-shadow:0 0 0 2px var(--panel),0 0 0 3px var(--line);flex:none}
.vsep{width:1px;align-self:stretch;background:var(--line);margin:2px 2px;flex:none}
.hint{font-size:12px;color:var(--muted);white-space:nowrap;padding:0 4px}
.sw{width:30px;height:30px}
#pill{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;align-items:center;gap:0;background:var(--panel);border:1px solid var(--line);border-radius:999px;box-shadow:var(--paper-shadow);padding:3px 5px;z-index:4}
#pill .ib{min-width:34px;height:34px;border-radius:999px}
#pill .num{min-width:56px}
.psep{width:1px;height:20px;background:var(--line);margin:0 4px}
#selbar{bottom:68px}
#toast{bottom:calc(150px + env(safe-area-inset-bottom,0px))}
body.home #dock,body.empty #bSave,body.empty #bSearch{display:none}
body.home #pill{display:none}
#viewer{padding-bottom:64px}
#pages{padding-bottom:80px}
#home{position:absolute;inset:0;z-index:8;background:var(--bg);overflow:auto;display:flex;justify-content:center;padding-block:28px 40px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.hwrap{width:100%;max-width:760px;display:flex;flex-direction:column;gap:18px}
.hhead{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
#home h1{margin:0;font-size:24px;font-weight:600;letter-spacing:-.015em;text-wrap:balance}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));gap:12px}
.card{display:flex;align-items:center;gap:14px;text-align:start;padding:16px;border-radius:14px;background:var(--panel);border:1px solid var(--line);min-width:0}
.card:hover{border-color:var(--accent)}
.card>span:last-child{min-width:0}
.card .ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;flex:none;background:color-mix(in srgb,var(--accent) 13%,transparent);color:var(--accent)}
.card .ico svg.i{width:24px;height:24px}
.card b{display:block;font-size:15px;font-weight:600}
.card small{display:block;color:var(--muted);font-size:13px;margin-top:2px;line-height:1.35}
.hpriv{display:flex;gap:8px;align-items:flex-start}
.hpriv svg.i{width:16px;height:16px;flex:none;margin-top:1px}
.hfoot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.hlink{color:var(--accent);font-weight:600;padding:6px 0}
.plink{color:var(--muted)}
.hbot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.hlang{width:auto;padding:5px 8px;font-size:12.5px;color:var(--muted)}
html.i18n-wait body{visibility:hidden}
@media (min-width:900px){
  #app{grid-template-areas:"top" "dock" "main";grid-template-rows:auto auto 1fr}
  #dock{flex-direction:row;align-items:center;border-top:0;border-bottom:1px solid var(--line);padding-bottom:0;padding-left:max(12px,env(safe-area-inset-left,0px));padding-right:max(12px,env(safe-area-inset-right,0px))}
  #tabs{order:-1;display:flex;gap:2px;flex:none;padding-block:6px;padding-inline:0 10px;border-inline-end:1px solid var(--line)}
  #toast{bottom:84px}
  .tab{flex-direction:row;gap:7px;padding:8px 12px;font-size:13px;border-radius:8px}
  .tab svg.i{width:19px;height:19px}
  .tab.on{background:color-mix(in srgb,var(--accent) 12%,transparent)}
  .tab.on::before{display:none}
  .tab:hover:not(.on){background:var(--bg);color:var(--ink)}
  #strip{border-bottom:0;flex:1;min-width:0;padding-inline-start:12px}
  #home{padding-top:48px}
  #home h1{font-size:28px}
}