:root{--bg: #f3f4f6;--surface: #ffffff;--surface2: #f1f5f9;--text: #0f172a;--muted: #64748b;--line: #e2e8f0;--accent: #1d4ed8;--accent-soft: #dbeafe;--on-accent: #ffffff;--danger: #dc2626;--viewer: #cfd5dd;--shadow: 0 1px 4px rgba(0, 0, 0, .22);--float: 0 4px 18px rgba(15, 23, 42, .18);color-scheme:light}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg: #0b1120;--surface: #111827;--surface2: #1f2937;--text: #e5e7eb;--muted: #94a3b8;--line: #273244;--accent: #60a5fa;--accent-soft: #1e3a5f;--on-accent: #0b1120;--danger: #f87171;--viewer: #1a2130;--float: 0 4px 18px rgba(0, 0, 0, .5);color-scheme:dark}}:root[data-theme=dark]{--bg: #0b1120;--surface: #111827;--surface2: #1f2937;--text: #e5e7eb;--muted: #94a3b8;--line: #273244;--accent: #60a5fa;--accent-soft: #1e3a5f;--on-accent: #0b1120;--danger: #f87171;--viewer: #1a2130;--float: 0 4px 18px rgba(0, 0, 0, .5);color-scheme:dark}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html,body{margin:0;height:100%;background:var(--bg);color:var(--text)}body{position:fixed;inset:0;overflow:hidden;overscroll-behavior:none;font-family:system-ui,Segoe UI,Tahoma,Noto Sans Arabic,sans-serif;font-size:15px;-webkit-user-select:none;user-select:none}input,textarea,select{-webkit-user-select:text;user-select:text}button{font:inherit;color:inherit;cursor:pointer;touch-action:manipulation}button:disabled{cursor:default}[hidden]{display:none!important}.ic{display:inline-grid;place-items:center}.ic svg{width:22px;height:22px}#app{display:flex;flex-direction:column;height:100%}#topbar{display:flex;align-items:center;gap:2px;flex:none;padding:calc(env(safe-area-inset-top) + 4px) max(6px,env(safe-area-inset-right)) 4px max(6px,env(safe-area-inset-left));background:var(--surface);border-bottom:1px solid var(--line)}#docTitle{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:650;padding:0 6px}.ib{width:42px;height:42px;display:grid;place-items:center;border:0;background:none;border-radius:12px;flex:none}.ib svg{width:22px;height:22px}.ib:active{background:var(--surface2)}.ib:disabled{opacity:.3}.ib.accent{color:var(--accent)}.ib.small{width:34px;height:34px}#stage{flex:1;position:relative;min-height:0}#viewer{position:absolute;inset:0;overflow:auto;background:var(--viewer);touch-action:none;direction:ltr;scrollbar-width:thin}#viewer[data-tool=hand]{cursor:grab}#viewer[data-tool=pen],#viewer[data-tool=highlight],#viewer[data-tool=shape],#viewer[data-tool=whiteout]{cursor:crosshair}#viewer[data-tool=text]{cursor:text}#viewer[data-tool=eraser]{cursor:cell}#pages{display:flex;flex-direction:column;align-items:center;width:max-content;min-width:100%}.page{position:relative;background:#fff;box-shadow:var(--shadow);flex:none}.page canvas{position:absolute;inset:0;width:100%;height:100%}body:not(.has-doc) #viewer,body:not(.has-doc) #toolbar,body:not(.has-doc) #zoomBar,body:not(.has-doc) #pageInd{display:none}#empty{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:24px 16px;text-align:center;background:var(--bg)}#empty .logo{width:96px;height:96px;border-radius:22px;box-shadow:var(--float)}#empty h1{margin:6px 0 0;font-size:26px}#empty p{max-width:340px;margin:0 0 10px;line-height:1.6}#pageInd{position:absolute;top:10px;left:50%;transform:translate(-50%);padding:5px 14px;border-radius:99px;background:#0f172ac7;color:#fff;font-size:13px;pointer-events:none;opacity:0;transition:opacity .25s;direction:ltr}#pageInd.show{opacity:1}#zoomBar{position:absolute;left:max(10px,env(safe-area-inset-left));bottom:12px;display:flex;flex-direction:column;background:var(--surface);border-radius:14px;box-shadow:var(--float);overflow:hidden}#zoomBar button{width:44px;height:40px;border:0;background:none;display:grid;place-items:center}#zoomBar button svg{width:20px;height:20px}#zoomBar .zpct{font-size:11px;font-weight:600;height:30px;border-block:1px solid var(--line);direction:ltr}#selBar{position:absolute;bottom:14px;left:50%;transform:translate(-50%);display:flex;gap:2px;padding:4px;background:var(--surface);border-radius:16px;box-shadow:var(--float)}#selBar button{display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:none;padding:6px 12px;border-radius:12px;font-size:12px}#selBar button .ic svg{width:20px;height:20px}#selBar button.danger{color:var(--danger)}#optBar{display:flex;align-items:center;gap:8px;padding:7px 12px;flex:none;min-height:48px;background:var(--surface);border-top:1px solid var(--line);overflow-x:auto;scrollbar-width:none}#optBar::-webkit-scrollbar,#toolbar::-webkit-scrollbar{display:none}.sep{width:1px;height:24px;background:var(--line);flex:none}.hint{color:var(--muted);font-size:13px;white-space:nowrap}#toolbar{display:flex;flex:none;gap:2px;overflow-x:auto;scrollbar-width:none;background:var(--surface);border-top:1px solid var(--line);padding:4px max(4px,env(safe-area-inset-right)) calc(env(safe-area-inset-bottom) + 4px) max(4px,env(safe-area-inset-left))}.tool{flex:none;width:62px;height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;border:0;background:none;color:var(--muted);font-size:11.5px;border-radius:12px}.tool.on{color:var(--accent);background:var(--accent-soft)}@media (min-width: 900px){#toolbar{justify-content:center}}.sw{width:30px;height:30px;border-radius:50%;border:2px solid var(--line);flex:none;padding:0}.sw.on{outline:2.5px solid var(--accent);outline-offset:2px}.chip{height:34px;padding:0 13px;border-radius:17px;border:1px solid var(--line);background:var(--surface2);font-size:13.5px;flex:none;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}.chip.on{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.chip.icon{padding:0 9px}.chip.icon svg{width:20px;height:20px}.chip.wd{width:38px;justify-content:center;padding:0}.chip.wd i{display:block;border-radius:50%;background:currentColor}.btn{height:44px;padding:0 18px;border-radius:12px;border:1px solid var(--line);background:var(--surface2);font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn.primary{background:var(--accent);color:var(--on-accent);border-color:var(--accent)}.btn.danger{color:var(--danger)}.btn:disabled{opacity:.45}.btn.big{height:52px;min-width:240px;font-size:16px}.inp{width:100%;padding:11px 12px;border-radius:12px;border:1px solid var(--line);background:var(--surface2);color:var(--text);font:inherit;font-size:16px;outline:none}.inp:focus{border-color:var(--accent)}textarea.inp{resize:vertical;min-height:90px;line-height:1.5}.form{display:flex;flex-direction:column;gap:10px}.form label{font-size:13px;color:var(--muted)}.form h3{margin:8px 0 0;font-size:15px}.form p{margin:0;line-height:1.6}label.check{display:flex;align-items:center;gap:6px;color:var(--text)!important;font-size:14px!important}label.check input{width:20px;height:20px;accent-color:var(--accent)}.row{display:flex;align-items:center;gap:8px}.row.wrap{flex-wrap:wrap}.row.end{justify-content:flex-end;flex-wrap:wrap}.muted{color:var(--muted)}.small{font-size:13px;margin:10px 0}.status{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px}.msg{line-height:1.7;margin:4px 0 8px}.warn{padding:10px 12px;border-radius:12px;background:#fef3c7;color:#78350f;font-size:13.5px;line-height:1.6}.sheet-back{position:fixed;inset:0;z-index:50;background:#0000006b;display:flex;align-items:flex-end;justify-content:center;opacity:0;transition:opacity .2s;padding-bottom:var(--kb, 0px)}.sheet-back.open{opacity:1}.sheet{background:var(--surface);width:100%;max-width:640px;max-height:90%;border-radius:20px 20px 0 0;display:flex;flex-direction:column;transform:translateY(40px);transition:transform .2s;padding-bottom:env(safe-area-inset-bottom)}.sheet-back.open .sheet{transform:none}.sheet.full{height:100%;max-height:100%;max-width:none;border-radius:0;padding-top:env(safe-area-inset-top)}.sheet-head{display:flex;align-items:center;gap:6px;padding:10px 16px 4px 8px}.sheet-head h2{flex:1;margin:0;font-size:17px}.sheet-body{overflow:auto;padding:6px 16px 14px;flex:1;min-height:0}.sheet-foot{padding:10px 16px 12px;border-top:1px solid var(--line)}@media (min-width: 800px){.sheet-back{align-items:center}.sheet{border-radius:20px;max-height:85%}.sheet.full{height:90%;max-width:1000px;border-radius:20px;padding-top:0}}.menu{display:flex;flex-direction:column}.menuitem{display:flex;align-items:center;gap:14px;padding:13px 6px;border:0;background:none;text-align:start;border-bottom:1px solid var(--line);font-size:15px}.menuitem:last-child{border-bottom:0}.menuitem:disabled{opacity:.35}.menuitem .ic{color:var(--accent)}.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(108px,1fr));gap:12px;padding-bottom:8px}.thumb{position:relative;aspect-ratio:3 / 4;display:flex;align-items:center;justify-content:center;padding:8px 6px 26px;border-radius:12px;background:var(--surface2);border:2px solid transparent;cursor:pointer}.thumb canvas{max-width:100%;max-height:100%;background:#fff;box-shadow:var(--shadow)}.thumb.sel{border-color:var(--accent);background:var(--accent-soft)}.thumb .tick{position:absolute;top:6px;inset-inline-start:6px;width:24px;height:24px;border-radius:50%;background:var(--accent);color:var(--on-accent);display:none;place-items:center}.thumb .tick svg{width:16px;height:16px}.thumb.sel .tick{display:grid}.thumb .num{position:absolute;bottom:4px;left:50%;transform:translate(-50%);min-width:34px;height:22px;border-radius:11px;border:1px solid var(--line);background:var(--surface);font-size:12px;font-weight:600;padding:0 8px}.actbar{display:flex;justify-content:space-around;gap:4px}.act{display:flex;flex-direction:column;align-items:center;gap:2px;border:0;background:none;padding:4px 10px;border-radius:12px;font-size:12px}.act.danger{color:var(--danger)}.results{display:flex;flex-direction:column;margin-top:10px}.result{display:flex;gap:10px;align-items:baseline;text-align:start;padding:11px 4px;border:0;border-bottom:1px solid var(--line);background:none}.result .pg{flex:none;color:var(--accent);font-weight:650;font-size:13px}.result .snip{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pad{width:100%;height:220px;border-radius:14px;background:#fff;border:1px dashed #94a3b8;touch-action:none}.siglist{display:flex;flex-direction:column;gap:10px}.sigitem{display:flex;align-items:center;gap:8px}.sigimg{flex:1;height:90px;background:#fff;border:1px solid var(--line);border-radius:12px;display:grid;place-items:center;padding:8px}.sigimg img{max-width:100%;max-height:100%}.stamps{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:10px}.stamp{height:72px;background:#fff;border:1px solid var(--line);border-radius:12px;display:grid;place-items:center;padding:8px}.stamp img{max-width:100%;max-height:100%}#toast{position:fixed;z-index:80;left:50%;bottom:calc(130px + env(safe-area-inset-bottom));transform:translate(-50%,20px);max-width:min(92vw,520px);padding:11px 18px;border-radius:14px;background:#0f172aeb;color:#fff;font-size:14px;line-height:1.5;text-align:center;opacity:0;pointer-events:none;transition:opacity .2s,transform .2s}#toast.show{opacity:1;transform:translate(-50%)}#busy{position:fixed;inset:0;z-index:90;display:none;place-items:center;background:#00000040}#busy.show{display:grid}.busy-card{display:flex;align-items:center;gap:12px;padding:16px 22px;border-radius:16px;background:var(--surface);box-shadow:var(--float)}.spin{width:24px;height:24px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:spin .8s linear infinite}.spin.sm{width:16px;height:16px;border-width:2px;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}