:root{
  --bg:#12141a; --rail:#191c24; --line:#272b36; --ink:#e8eaf0; --mut:#8b93a7;
  --accent:#3d7dff; --accent2:#2b63d9; --good:#2fbf71; --paper:#fff;
  --fld:#3d7dff; --fldbg:rgba(61,125,255,.10);
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html,body{height:100%}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:14px/1.45 "Segoe UI",system-ui,-apple-system,sans-serif;
  overflow:hidden;
}
button{font:inherit;color:inherit}

/* ---------- top bar ---------- */
.bar{
  height:52px; display:flex; align-items:center; gap:16px; padding:0 16px;
  background:var(--rail); border-bottom:1px solid var(--line);
}
.brand{font-weight:650; letter-spacing:.2px; display:flex; align-items:center; gap:7px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--good)}
.docname{color:var(--mut); font-size:13px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.bar-right{margin-left:auto; display:flex; align-items:center; gap:10px}

.btn{
  background:#232734; border:1px solid var(--line); color:var(--ink);
  padding:7px 13px; border-radius:7px; cursor:pointer; transition:.12s;
}
.btn:hover{background:#2b3040}
.btn.primary{background:var(--accent); border-color:var(--accent); font-weight:600}
.btn.primary:hover{background:var(--accent2)}
.btn.primary:disabled{background:#2a2f3d;border-color:var(--line);color:#5d6478;cursor:not-allowed}
.btn.ghost{background:transparent}
.btn.block{width:100%; margin-top:8px}
.link{background:none;border:0;color:var(--accent);cursor:pointer;padding:0;text-decoration:underline}
.chk{display:flex;align-items:center;gap:6px;color:var(--mut);font-size:12.5px;cursor:pointer}
.chk input{accent-color:var(--accent)}

/* ---------- layout ---------- */
.shell{display:flex; height:calc(100% - 52px)}
.rail{
  width:250px; flex:0 0 250px; background:var(--rail); border-right:1px solid var(--line);
  overflow:auto; padding:14px;
}
.rail section{padding-bottom:16px; margin-bottom:16px; border-bottom:1px solid var(--line)}
.rail section:last-child{border:0}
.rail h3{margin:0 0 10px; font-size:11px; letter-spacing:.9px; text-transform:uppercase; color:var(--mut); font-weight:600}
.mut{color:var(--mut)}
.small{font-size:12px}
.hint{color:var(--mut); font-size:12px; margin:10px 0 0}
.lbl{display:block;color:var(--mut);font-size:12px;margin:10px 0 4px}

.tools{display:grid; grid-template-columns:1fr 1fr; gap:6px}
.tool{
  display:flex; flex-direction:column; align-items:center; gap:3px; padding:9px 4px;
  background:#232734; border:1px solid var(--line); border-radius:8px; cursor:pointer;
}
.tool b{font-size:15px; line-height:1}
.tool span{font-size:11px; color:var(--mut)}
.tool:hover{background:#2b3040}
.tool.on{background:var(--accent); border-color:var(--accent)}
.tool.on span{color:#fff}

.in{
  width:100%; background:#232734; border:1px solid var(--line); color:var(--ink);
  padding:7px 9px; border-radius:7px; margin-bottom:6px; font:inherit;
}
.in.big{font-size:20px; padding:11px}
.in:focus{outline:none; border-color:var(--accent)}

.siglist{display:flex; flex-wrap:wrap; gap:6px}
.sigcard{
  position:relative; width:100%; height:52px; background:#fff; border-radius:7px;
  border:2px solid transparent; cursor:pointer; display:flex; align-items:center; justify-content:center;
}
.sigcard img{max-width:88%; max-height:80%}
.sigcard.on{border-color:var(--accent)}
.sigcard .del{
  position:absolute; top:-6px; right:-6px; width:18px; height:18px; border-radius:50%;
  background:#e5484d; color:#fff; border:0; font-size:12px; line-height:1; cursor:pointer; display:none;
}
.sigcard:hover .del{display:block}

.recent a{display:block; color:var(--mut); font-size:12px; text-decoration:none; padding:3px 0;
  overflow:hidden; text-overflow:ellipsis; white-space:nowrap}
.recent a:hover{color:var(--accent)}

/* ---------- stage ---------- */
.stage{flex:1; position:relative; overflow:auto; background:#0e1015; padding:26px 0 90px}
.drop{position:absolute; inset:0; display:flex; align-items:center; justify-content:center}
.drop.hide{display:none}
.drop-in{text-align:center; border:2px dashed var(--line); border-radius:16px; padding:52px 70px}
.drop.over .drop-in{border-color:var(--accent); background:rgba(61,125,255,.06)}
.drop-icon{font-size:34px; color:var(--mut)}
.drop h2{margin:10px 0 6px; font-weight:600}
.drop p{margin:4px 0; color:var(--mut)}

.pages{display:flex; flex-direction:column; align-items:center; gap:22px}
.page{
  position:relative; background:var(--paper); box-shadow:0 6px 28px rgba(0,0,0,.45);
  width:var(--pw,860px);
}
.page img{display:block; width:100%; height:auto; user-select:none; -webkit-user-drag:none}
.page.arm{cursor:crosshair}
.pnum{position:absolute; left:-40px; top:0; color:var(--mut); font-size:12px}

/* form-field hints detected in the PDF */
.wg{position:absolute; background:rgba(61,125,255,.11); border:1px solid rgba(61,125,255,.4);
  border-radius:2px; cursor:pointer; z-index:2}
.wg:hover{background:rgba(61,125,255,.24)}
.page.nohints .wg{display:none}

/* placed fields */
.fld{position:absolute; border:1px dashed transparent; border-radius:2px; cursor:default; z-index:3}
/* white-out boxes sit under every other mark, so text can be written on top of them */
.fld.wo{z-index:1; border:1px dashed rgba(61,125,255,.35)}
.fld.wo.sel,.fld.wo:hover{border-color:var(--fld); border-style:solid}
.fld:hover{border-color:var(--fld); background:var(--fldbg)}
.fld.sel{border-color:var(--fld); border-style:solid; background:var(--fldbg)}
.fld input{
  width:100%; height:100%; border:0; background:transparent; color:#000; padding:0 1px;
  font-family:Helvetica,Arial,sans-serif; pointer-events:none;
}
.fld input:focus{outline:none}
.fld.editing input{pointer-events:auto}
.fld img{width:100%; height:100%; object-fit:contain; pointer-events:none}
.fld .ck{width:100%; height:100%; display:flex; align-items:center; justify-content:center;
  color:#000; line-height:1; pointer-events:none}
.fld .grip{
  position:absolute; right:-5px; bottom:-5px; width:11px; height:11px; background:var(--fld);
  border:2px solid #fff; border-radius:3px; cursor:nwse-resize; display:none;
}
.fld .mv{
  position:absolute; left:-15px; top:50%; transform:translateY(-50%); width:13px; height:22px;
  background:var(--fld); border-radius:3px; cursor:move; display:none;
  color:#fff; font-size:10px; text-align:center; line-height:22px;
}
.fld .del{
  position:absolute; right:-9px; top:-9px; width:17px; height:17px; border-radius:50%;
  background:#e5484d; color:#fff; border:0; font-size:11px; line-height:1; cursor:pointer; display:none;
}
.fld.sel .grip,.fld.sel .del,.fld.sel .mv,.fld:hover .grip,.fld:hover .del,.fld:hover .mv{display:block}
.fld.ph{opacity:.45}

.zoom{position:fixed; right:22px; bottom:22px; display:flex; align-items:center; gap:8px;
  background:var(--rail); border:1px solid var(--line); border-radius:9px; padding:6px 10px}
.zb{background:none;border:0;cursor:pointer;font-size:16px;width:20px}
#zLabel{font-size:12px;color:var(--mut);width:38px;text-align:center}

/* ---------- modal ---------- */
.modal{position:fixed; inset:0; background:rgba(6,8,12,.72); display:flex;
  align-items:center; justify-content:center; z-index:50}
.sheet{width:min(760px,92vw); background:var(--rail); border:1px solid var(--line);
  border-radius:14px; padding:18px; box-shadow:0 30px 80px rgba(0,0,0,.6)}
.sheet-head{display:flex; align-items:center; margin-bottom:12px}
.sheet-head h2{margin:0; font-size:17px; font-weight:600}
.x{margin-left:auto; background:none; border:0; font-size:22px; cursor:pointer; color:var(--mut)}
.tabs{display:flex; gap:6px; margin-bottom:12px}
.tab{background:#232734; border:1px solid var(--line); padding:6px 14px; border-radius:7px; cursor:pointer}
.tab.on{background:var(--accent); border-color:var(--accent)}
.pane{display:none}
.pane.on{display:block}
#pad,#imgCanvas{width:100%; height:210px; background:#fff; border-radius:9px; touch-action:none; cursor:crosshair}
.pane-foot{display:flex; align-items:center; gap:12px; margin-top:10px}
.fonts{display:grid; grid-template-columns:1fr 1fr; gap:8px; margin-top:10px}
.fontopt{background:#fff; color:#111; border:2px solid transparent; border-radius:9px;
  height:66px; display:flex; align-items:center; justify-content:center; cursor:pointer;
  font-size:28px; overflow:hidden; padding:0 8px}
.fontopt.on{border-color:var(--accent)}
.sheet-foot{display:flex; align-items:center; gap:10px; margin-top:16px}
.grow{flex:1}

.toast{position:fixed; left:50%; bottom:26px; transform:translateX(-50%);
  background:var(--rail); border:1px solid var(--line); border-radius:10px; padding:12px 16px;
  display:flex; align-items:center; gap:14px; z-index:60; box-shadow:0 14px 40px rgba(0,0,0,.5)}
.toast b{color:var(--good)}

/* ---------- login (hosted mode) ---------- */
.loginpage{display:flex; align-items:center; justify-content:center; height:100%}
.loginbox{
  width:min(340px,90vw); background:var(--rail); border:1px solid var(--line);
  border-radius:14px; padding:26px; box-shadow:0 24px 60px rgba(0,0,0,.5);
}
.loginbox h1{margin:0 0 4px; font-size:20px}
.loginbox p{margin:0 0 16px}
.loginbox .in{margin-bottom:12px}
.err{color:#ff8a8f; font-size:13px; margin:12px 0 0 !important}
.hosted-hide{display:none !important}
.hosted-only{display:none}
body.hosted .hosted-only{display:block}