:root{
  --bg:#f5f4f1; --ink:#14181c; --line:#c9c6bf; --card:#ffffff;
  --accent:#1d5fb4; --accentInk:#ffffff; --dark:#111417; --dim:#5d635f;
  --pad:14px; --r:12px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
[hidden]{display:none!important}
html,body{height:100%;margin:0}
body{
  background:var(--bg);color:var(--ink);
  font:17px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  overscroll-behavior:none;
}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}

/* ---- screens ---- */
.screen{position:fixed;inset:0;display:none;flex-direction:column;background:var(--bg)}
.screen.show{display:flex}
.screen.dark{background:var(--dark);color:#fff}
.scroll{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:var(--pad);padding-bottom:96px}

/* ---- bars ---- */
.bar{
  display:flex;align-items:center;gap:10px;padding:10px var(--pad);
  padding-top:calc(10px + env(safe-area-inset-top));
  background:var(--card);border-bottom:1px solid var(--line);flex:0 0 auto;
}
.screen.dark .bar{background:var(--dark);border-color:#2a2f33}
.bar.bottom{
  border-bottom:0;border-top:1px solid var(--line);
  padding-bottom:calc(10px + env(safe-area-inset-bottom));padding-top:10px;
}
.bar.over{background:rgba(17,20,23,.92);border-color:#23282c}
.bar h1{font-size:22px;margin:0;flex:1;font-weight:650}
.bar .title{flex:1;text-align:left;font-size:19px;font-weight:650;padding:6px 2px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bar .count{flex:1;text-align:center;font-size:16px;color:#d7dbdf}
.icon{
  width:48px;height:48px;border-radius:24px;font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.screen.dark .icon{color:#fff;background:rgba(255,255,255,.08)}
.screen:not(.dark) .icon{background:#eceae6}

/* ---- buttons ---- */
.big{
  min-height:56px;padding:0 18px;border-radius:var(--r);background:#eceae6;
  font-size:17px;font-weight:600;flex:1;
}
.screen.dark .big{background:rgba(255,255,255,.12);color:#fff}
.primary{background:var(--accent);color:var(--accentInk)}
.screen.dark .primary{background:var(--accent);color:#fff}
.bar.bottom.three{gap:8px}
.bar.bottom.three .big{padding:0 8px;font-size:16px}
.ghost{min-width:84px;min-height:48px;color:#fff;font-size:17px;font-weight:600}

/* ---- document list ---- */
.docs{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.docs li{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  display:flex;align-items:stretch;overflow:hidden;
}
.docs .open{flex:1;text-align:left;padding:14px;display:flex;gap:12px;align-items:center;min-width:0}
.docs .open img{width:52px;height:68px;object-fit:cover;background:#e6e4e0;border-radius:6px;flex:0 0 auto}
.docs .meta{min-width:0}
.docs .meta b{display:block;font-size:18px;font-weight:650;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.docs .meta span{color:var(--dim);font-size:15px}
.docs .more{width:56px;border-left:1px solid var(--line);font-size:22px}
.empty{color:var(--dim);text-align:center;padding:40px 0;font-size:17px}
.note{color:var(--dim);font-size:15px;text-align:center;margin:18px 0 0}

/* ---- page list ---- */
.pages{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.pages li{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:10px;display:flex;gap:12px;align-items:center;
}
.pages .thumbwrap{flex:0 0 auto;padding:0;border-radius:6px;overflow:hidden;display:block}
.pages .thumb{width:76px;height:100px;object-fit:cover;background:#e6e4e0;border-radius:6px;flex:0 0 auto}
.pages .n{flex:1;font-size:18px;font-weight:650}
.pages .n small{display:block;font-weight:400;color:var(--dim);font-size:14px}
.pages .col{display:flex;flex-direction:column;gap:6px}
.pages .col button{width:52px;height:44px;border-radius:9px;background:#eceae6;font-size:18px}

/* ---- camera + page stage ---- */
.stage{flex:1;position:relative;overflow:hidden;background:#000;display:flex;align-items:center;justify-content:center}
#video{width:100%;height:100%;object-fit:cover}
#overlay,#cropLines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
#pageImg,#cropImg{max-width:100%;max-height:100%;object-fit:contain;display:block}
.cammsg{
  position:absolute;left:16px;right:16px;bottom:16px;margin:0;text-align:center;
  color:#fff;background:rgba(0,0,0,.6);padding:10px;border-radius:10px;font-size:16px;
}
.shutter{
  width:76px;height:76px;border-radius:38px;background:#fff;border:5px solid rgba(255,255,255,.35);
  flex:0 0 auto;margin:0 auto;
}
.shutter:active{transform:scale(.94)}

/* ---- filter chips ---- */
.chips{display:flex;gap:8px;padding:10px var(--pad);background:rgba(17,20,23,.92);overflow-x:auto}
.chips button{
  min-height:46px;padding:0 18px;border-radius:23px;background:rgba(255,255,255,.12);
  color:#fff;font-size:16px;font-weight:600;flex:0 0 auto;
}
.chips button[aria-pressed="true"]{background:var(--accent)}

/* ---- crop handles ---- */
.handle{
  position:absolute;width:56px;height:56px;margin:-28px 0 0 -28px;border-radius:28px;
  border:3px solid #fff;background:rgba(29,95,180,.45);touch-action:none;
}
.handle::after{content:"";position:absolute;inset:23px;border-radius:5px;background:#fff}
#loupe{
  width:75px;height:75px;border-radius:38px;border:2px solid #fff;background:#000;
  flex:0 0 auto;visibility:hidden;
}
#loupe.on{visibility:visible}

/* ---- sheet, toast, busy ---- */
.sheet{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:flex-end;z-index:20}
.sheetbody{
  width:100%;background:var(--card);border-radius:18px 18px 0 0;padding:var(--pad);
  padding-bottom:calc(var(--pad) + env(safe-area-inset-bottom));max-height:86vh;overflow-y:auto;
}
.sheetbody h2{margin:4px 0 14px;font-size:20px}
.sheetbody p{margin:0 0 12px;color:var(--dim);font-size:16px}
.sheetbody .row{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 16px}
.sheetbody .row button{
  min-height:50px;padding:0 16px;border-radius:10px;background:#eceae6;font-weight:600;flex:1 0 auto;
}
.sheetbody .row button[aria-pressed="true"]{background:var(--accent);color:#fff}
.sheetbody label{display:block;font-weight:650;margin:0 0 6px}
.sheetbody input{
  width:100%;min-height:52px;font:inherit;padding:0 12px;border:1px solid var(--line);
  border-radius:10px;background:#fff;color:var(--ink);margin:0 0 16px;
}
.sheetbody .stack{display:flex;flex-direction:column;gap:8px}
.sheetbody .stack button{min-height:56px;border-radius:10px;background:#eceae6;font-weight:600}
.sheetbody .stack .danger{background:#b3261e;color:#fff}
.sheetbody .stack .primary{background:var(--accent);color:#fff}
.toast{
  position:fixed;left:50%;bottom:110px;transform:translateX(-50%);z-index:30;
  background:#14181c;color:#fff;padding:14px 18px;border-radius:12px;font-size:16px;
  max-width:88vw;text-align:center;display:flex;gap:14px;align-items:center;
}
.toast button{color:#8ab4f8;font-weight:700}
.busy{
  position:fixed;inset:0;z-index:40;background:rgba(0,0,0,.55);color:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;font-size:17px;
}
.spin{
  width:46px;height:46px;border-radius:23px;border:4px solid rgba(255,255,255,.25);
  border-top-color:#fff;animation:spin .9s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation-duration:2.4s}}

/* ---- two-row footers ---- */
.bar.bottom.rows{flex-direction:column;align-items:stretch;gap:8px}
.row2{display:flex;gap:8px}
.row2 .big{flex:1}

/* ---- the signing pad ---- */
.bar.thin{gap:10px;padding-top:calc(8px + env(safe-area-inset-top));padding-bottom:8px}
.bar .grow{flex:1}
.swatch{
  width:46px;height:46px;border-radius:23px;background:#101214;
  border:3px solid transparent;flex:0 0 auto;
}
.swatch.blue{background:#16307a}
.swatch[aria-pressed="true"]{border-color:#1d5fb4;box-shadow:0 0 0 3px #fff inset}
.pill{min-height:46px;padding:0 18px;border-radius:23px;background:#eceae6;font-weight:600}
.pad{
  flex:1;position:relative;background:#fff;margin:0;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);touch-action:none;
}
#signPad{position:absolute;inset:0;width:100%;height:100%;touch-action:none;display:block}
.pad .baseline{
  position:absolute;left:6%;right:6%;bottom:26%;height:2px;background:#d8d5cf;pointer-events:none;
}
.padhint{
  position:absolute;left:0;right:0;bottom:12%;margin:0;text-align:center;
  color:#9c9890;font-size:17px;pointer-events:none;padding:0 20px;
}
.pad.inked .padhint,.pad.inked .baseline{display:none}

/* ---- placing the signature ---- */
#placeImg{max-width:100%;max-height:100%;object-fit:contain;display:block}
#placeSig{position:absolute;touch-action:none;filter:drop-shadow(0 0 2px rgba(29,95,180,.9))}

/* ---- saved signatures ---- */
.sigrow{display:flex;flex-direction:column;gap:8px;margin:0 0 16px}
.sigrow .item{
  display:flex;align-items:center;gap:10px;background:#f2f0ec;border:1px solid var(--line);
  border-radius:10px;padding:8px;
}
.sigrow .item img{height:56px;max-width:60%;object-fit:contain;flex:1}
.sigrow .item button{min-height:48px;padding:0 14px;border-radius:9px;background:#e2dfd9;font-weight:600}
.sigrow .item .use{background:var(--accent);color:#fff}

/* ---- pin keypad ---- */
.dots{display:flex;gap:10px;justify-content:center;margin:0 0 16px}
.dots i{width:16px;height:16px;border-radius:8px;background:#d8d5cf;display:block}
.dots i.on{background:var(--accent)}
.keys{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:0 0 12px}
.keys button{min-height:62px;border-radius:12px;background:#eceae6;font-size:24px;font-weight:600}
.keys button.wide{font-size:17px}
.pinmsg{color:#b3261e;text-align:center;min-height:22px;margin:0 0 10px;font-size:16px}

/* ---- tables (PDF → spreadsheet) ---- */
.pageind{flex:0 0 auto;min-width:44px;text-align:center;font-size:15px;color:var(--dim)}
.tblwrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.grid{border-collapse:collapse;width:max-content;min-width:100%;font-size:15px}
.grid td{border:1px solid var(--line);padding:7px 10px;vertical-align:top;white-space:pre-wrap;max-width:340px}
.grid tr:first-child td{background:#eceae6;font-weight:650;position:sticky;top:0}
.grid tr:nth-child(even) td{background:#faf9f7}
.grid tr:nth-child(even):first-child td{background:#eceae6}
.tblempty{padding:34px 18px;text-align:center;color:var(--dim);font-size:16px}

/* ---- sideways, where a signature has room to run ---- */
@media (max-height:520px){
  .bar.bottom.rows{flex-direction:row}
  .bar.bottom.rows .row2{flex:1}
  .big{min-height:46px;font-size:15px}
  .bar{padding-top:calc(6px + env(safe-area-inset-top));padding-bottom:6px}
  .bar.bottom{padding-bottom:calc(6px + env(safe-area-inset-bottom))}
  .icon,.pill{height:42px;min-height:42px}
  .icon{width:42px}
  .swatch{width:42px;height:42px}
  .chips button{min-height:42px}
}