/* Layout: a writing desk. Cool paper-grey ground, white sheets as working surfaces, cobalt "blue pencil" for actions, highlighter yellow only for marks. */
:root{
  --paper:#EDF0F3; --sheet:#FFFFFF; --ink:#17202B; --muted:#5B6878; --line:#D3D9E1; --line-strong:#B9C2CD;
  --accent:#2C4FD8; --accent-ink:#FFFFFF; --accent-soft:#E3E9FD; --mark:#FFD43B;
  --danger:#C8382B; --ok:#1E8A55; --shadow:0 1px 2px rgba(23,32,43,.06),0 6px 18px rgba(23,32,43,.07);
  --f-display:"Reem Kufi","IBM Plex Sans Arabic",Tahoma,sans-serif;
  --f-head:"IBM Plex Sans Arabic","Segoe UI",Tahoma,sans-serif;
  --f-body:"IBM Plex Sans Arabic","Segoe UI",Tahoma,sans-serif;
  --f-mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:10px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#10151C; --sheet:#18202A; --ink:#E5EAF0; --muted:#93A0AF; --line:#2A3541; --line-strong:#3A4757;
  --accent:#7F99FF; --accent-ink:#0B1020; --accent-soft:#1F2947; --mark:#FFD43B;
  --danger:#FF7A6B; --ok:#4FCB8D; --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 22px rgba(0,0,0,.28); color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#10151C; --sheet:#18202A; --ink:#E5EAF0; --muted:#93A0AF; --line:#2A3541; --line-strong:#3A4757;
  --accent:#7F99FF; --accent-ink:#0B1020; --accent-soft:#1F2947; --mark:#FFD43B;
  --danger:#FF7A6B; --ok:#4FCB8D; --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 22px rgba(0,0,0,.28); color-scheme:dark}
*{box-sizing:border-box}
html,body{background:var(--paper);color:var(--ink)}
body{font-family:var(--f-body);font-size:15px;line-height:1.6}
#app{max-width:1180px;margin:0 auto;padding-inline:16px;padding-block:0 48px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.muted{color:var(--muted)}
.mono{font-family:var(--f-mono);font-variant-numeric:tabular-nums}
h1,h2,h3{font-family:var(--f-head);font-weight:700;line-height:1.25;text-wrap:balance;margin:0}

/* header */
.top{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-block:18px 14px;border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:baseline;gap:8px;text-decoration:none;color:var(--ink);background:none;border:0;padding:0}
.brand b{font-family:var(--f-display);font-size:30px;font-weight:700;letter-spacing:0}
.brand span{font-family:var(--f-mono);font-size:12px;letter-spacing:.12em;color:var(--accent);border:1px solid currentColor;border-radius:4px;padding:1px 6px}
.nav{display:flex;gap:4px;overflow-x:auto;flex:1;min-width:0;scrollbar-width:none;margin-inline-start:auto}
.nav::-webkit-scrollbar{display:none}
.nav button{flex:none;background:none;border:0;border-radius:999px;padding:6px 12px;color:var(--muted);font-size:14px;white-space:nowrap}
.nav button:hover{color:var(--ink);background:var(--sheet)}
.nav button[aria-current="page"]{background:var(--ink);color:var(--paper)}

/* home */
.hero{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:32px;align-items:end;padding-block:40px 28px}
.hero h1{font-size:clamp(30px,4.6vw,50px)}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 58%,var(--mark) 58%,var(--mark) 90%,transparent 90%);color:inherit;padding-inline:2px}
:root[data-theme="dark"] .hero h1 em{color:#17202B;background:var(--mark)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .hero h1 em{color:#17202B;background:var(--mark)}}
.hero p{max-width:60ch;margin:0;color:var(--muted)}
.privacy{display:flex;gap:10px;align-items:flex-start;padding:14px 16px;border:1px dashed var(--line-strong);border-radius:var(--r);font-size:14px;color:var(--muted)}
.privacy svg{flex:none;color:var(--ok);margin-top:3px}
.tools{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px}
.tool{display:grid;grid-template-columns:44px minmax(0,1fr);gap:4px 14px;text-align:start;background:var(--sheet);border:1px solid var(--line);border-radius:var(--r);padding:18px;transition:border-color .15s,transform .15s}
.tool:hover{border-color:var(--accent);transform:translateY(-2px)}
.tool .ic{grid-row:span 2;width:44px;height:44px;border-radius:9px;display:grid;place-items:center;background:var(--accent-soft);color:var(--accent)}
.tool strong{font-family:var(--f-head);font-size:18px;font-weight:700}
.tool small{color:var(--muted);font-size:13px;line-height:1.5}
.tool.feature{grid-column:span 2;background:var(--ink);color:var(--paper);border-color:var(--ink)}
.tool.feature small{color:color-mix(in srgb,var(--paper) 72%,transparent)}
.tool.feature .ic{background:var(--mark);color:#17202B}
@media (max-width:560px){.tool.feature{grid-column:auto}.hero{grid-template-columns:1fr;gap:18px;padding-block:28px 20px}}

/* tool page */
.thead{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:26px 18px}
.thead h2{font-size:clamp(24px,3.4vw,34px)}
.thead p{margin:4px 0 0;color:var(--muted);max-width:62ch}
.back{display:inline-flex;align-items:center;gap:6px;background:none;border:0;color:var(--muted);padding:0;font-size:14px;margin-bottom:6px}
.back:hover{color:var(--accent)}
.drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;min-height:200px;padding:28px 16px;border:2px dashed var(--line-strong);border-radius:14px;background:var(--sheet);cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--accent);background:var(--accent-soft)}
.drop .di{width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:var(--accent-ink);margin-bottom:6px}
.drop strong{font-size:17px}
.drop .sample{margin-top:8px;background:none;border:0;color:var(--accent);text-decoration:underline;text-underline-offset:3px;font-size:14px}
.drop.compact{min-height:0;flex-direction:row;padding:14px 16px;gap:12px}
.drop.compact .di{width:36px;height:36px;margin:0}
.drop.compact .muted,.drop.compact .sample{display:none}

.panel{background:var(--sheet);border:1px solid var(--line);border-radius:14px;padding:18px}
.split2{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:16px;align-items:start}
@media (max-width:860px){.split2{grid-template-columns:1fr}}
.side{display:flex;flex-direction:column;gap:16px;position:sticky;top:calc(env(safe-area-inset-top,0px) + 12px)}
@media (max-width:860px){.side{position:static}}
.field{display:flex;flex-direction:column;gap:6px}
.field>label,.lbl{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.01em}
input[type=text],input[type=number],select,textarea.in{width:100%;background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:8px 10px;min-width:0}
input[type=range]{width:100%;accent-color:var(--accent)}
input[type=color]{width:40px;height:34px;border:1px solid var(--line);border-radius:8px;padding:2px;background:var(--paper)}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.seg{display:flex;flex-wrap:wrap;gap:6px}
.seg button{border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 12px;font-size:14px}
.seg button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.choice{display:flex;flex-direction:column;gap:8px}
.choice button{display:flex;flex-direction:column;align-items:flex-start;text-align:start;gap:2px;border:1px solid var(--line);background:var(--paper);border-radius:10px;padding:12px 14px}
.choice button strong{font-size:15px}
.choice button small{color:var(--muted);font-size:13px;line-height:1.5}
.choice button[aria-pressed="true"]{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:var(--accent-soft)}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--sheet);border-radius:9px;padding:9px 14px;font-weight:500;font-size:14px;white-space:nowrap}
.btn:hover{border-color:var(--line-strong)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);font-weight:600}
.btn.primary:hover{filter:brightness(1.07)}
.btn.big{padding:12px 18px;font-size:15px;width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}
.ibtn{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:8px;border:1px solid transparent;background:none;color:var(--muted)}
.ibtn:hover{background:var(--paper);color:var(--ink);border-color:var(--line)}
.ibtn.danger:hover{color:var(--danger)}

.finfo{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:var(--sheet)}
.finfo .nm{font-weight:600;overflow-wrap:anywhere;min-width:0;flex:1}
.chip{font-family:var(--f-mono);font-size:12px;color:var(--muted);background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:2px 9px;white-space:nowrap}

/* file list (merge / images) */
.flist{display:flex;flex-direction:column;gap:8px}
.fitem{display:grid;grid-template-columns:auto 52px minmax(0,1fr) auto;gap:12px;align-items:center;background:var(--sheet);border:1px solid var(--line);border-radius:10px;padding:8px 10px}
.fitem.dragging{opacity:.4}.fitem.over{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}
.fitem .grip{cursor:grab;color:var(--muted);font-family:var(--f-mono);user-select:none}
.fitem img{width:52px;height:64px;object-fit:contain;background:#fff;border:1px solid var(--line);border-radius:4px}
.fitem .meta{min-width:0}.fitem .meta b{display:block;font-weight:600;overflow-wrap:anywhere;font-size:14px}
.fitem .acts{display:flex;gap:2px}
.order{font-family:var(--f-mono);font-size:12px;color:var(--accent);margin-inline-end:6px}

/* page grids */
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:14px}
.pcard{position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;padding:10px 8px 8px;border:1px solid var(--line);border-radius:10px;background:var(--sheet);user-select:none}
.pcard .pv{width:100%;aspect-ratio:3/4;display:grid;place-items:center;overflow:hidden}
.pcard .pv img,.pcard .pv .blank{max-width:92%;max-height:92%;box-shadow:0 1px 4px rgba(0,0,0,.18);background:#fff;transition:transform .2s}
.pcard .pv .blank{width:70%;aspect-ratio:1/1.414}
.pcard .num{font-family:var(--f-mono);font-size:12px;color:var(--muted)}
.pcard.sel{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:var(--accent-soft)}
.pcard.sel .num{color:var(--accent);font-weight:600}
.pcard.dragging{opacity:.4}.pcard.over{outline:2px dashed var(--accent);outline-offset:3px}
.pcard .pacts{display:flex;gap:0;flex-wrap:wrap;justify-content:center}
.pcard .pacts .ibtn{width:28px;height:28px}
.pcard[draggable="true"]{cursor:grab}
.pcard.click{cursor:pointer}
.tick{position:absolute;top:8px;inset-inline-start:8px;width:20px;height:20px;border-radius:50%;border:1.5px solid var(--line-strong);background:var(--sheet);display:grid;place-items:center;color:transparent}
.pcard.sel .tick{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}

.result{display:flex;flex-direction:column;gap:10px;padding:16px;border-radius:12px;background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}
.bars{display:flex;flex-direction:column;gap:6px;font-size:13px}
.bar{display:grid;grid-template-columns:70px minmax(0,1fr) 90px;gap:8px;align-items:center}
.bar i{display:block;height:10px;border-radius:5px;background:var(--line-strong)}
.bar.new i{background:var(--accent)}
.bigpct{font-family:var(--f-head);font-size:34px;font-weight:700;color:var(--accent);line-height:1}
.note{font-size:13px;color:var(--muted);padding:10px 12px;border-inline-start:3px solid var(--mark);background:var(--paper);border-radius:4px}
.preview{display:grid;place-items:center;background:var(--paper);border-radius:10px;padding:14px}
.preview canvas{max-width:100%;height:auto;box-shadow:var(--shadow);background:#fff}

/* editor */
.etb{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;display:flex;flex-wrap:wrap;gap:6px 10px;align-items:center;padding:8px;margin-bottom:14px;background:color-mix(in srgb,var(--sheet) 94%,transparent);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow)}
.tgroup{display:flex;gap:2px;flex-wrap:wrap}
.tsep{width:1px;align-self:stretch;background:var(--line)}
.tb{display:inline-flex;flex-direction:column;align-items:center;gap:1px;min-width:46px;padding:5px 6px 3px;border-radius:8px;border:1px solid transparent;background:none;color:var(--ink);font-size:11px;line-height:1.2}
.tb:hover{background:var(--paper)}
.tb[aria-pressed="true"]{background:var(--accent);color:var(--accent-ink)}
.tb:disabled{opacity:.35;cursor:not-allowed}
.sw{width:22px;height:22px;border-radius:50%;border:2px solid var(--sheet);box-shadow:0 0 0 1px var(--line-strong);padding:0}
.sw[aria-pressed="true"]{box-shadow:0 0 0 2px var(--accent)}
.mini{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.mini input[type=range]{width:80px}
.mini select{width:auto;padding:4px 6px}
.etb .save{margin-inline-start:auto}
.pages{display:flex;flex-direction:column;align-items:center;gap:22px}
.pwrap{position:relative;width:100%;max-width:880px;background:#fff;box-shadow:var(--shadow);border-radius:2px}
.pwrap canvas{position:absolute;inset:0;width:100%;height:100%}
.pwrap .ov{touch-action:pan-y pinch-zoom}
.pwrap .ov.lock{touch-action:none}
.pwrap .plabel{position:absolute;top:100%;inset-inline-start:0;margin-top:3px;font-family:var(--f-mono);font-size:11px;color:var(--muted)}
.pwrap textarea.ted{position:absolute;z-index:5;min-width:80px;min-height:1.4em;background:rgba(255,255,255,.85);border:1.5px dashed var(--accent);border-radius:3px;padding:0 2px;margin:0;resize:both;line-height:1.35;font-family:var(--f-body);outline:none;overflow:hidden;color:#000}
.cur-select .ov{cursor:default}.cur-draw .ov{cursor:crosshair}.cur-text .ov{cursor:text}

/* overlays */
.busy{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:color-mix(in srgb,var(--paper) 70%,transparent);backdrop-filter:blur(3px)}
.busy .box{background:var(--sheet);border:1px solid var(--line);border-radius:14px;padding:22px 26px;min-width:260px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px}
.busy .track{height:6px;border-radius:3px;background:var(--paper);overflow:hidden}
.busy .track i{display:block;height:100%;width:0;background:var(--accent);transition:width .2s}
.modal{position:fixed;inset:0;z-index:90;display:grid;place-items:center;background:rgba(10,14,20,.45);padding:16px}
.modal .box{background:var(--sheet);border-radius:14px;padding:18px;width:min(560px,100%);display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow)}
.sigpad{width:100%;aspect-ratio:5/2;background:#fff;border:1px solid var(--line);border-radius:10px;touch-action:none;cursor:crosshair}
#toast{position:fixed;bottom:calc(20px + env(safe-area-inset-bottom,0px));inset-inline:16px;display:flex;flex-direction:column;align-items:center;gap:8px;z-index:200;pointer-events:none}
#toast div{background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:10px;font-size:14px;box-shadow:var(--shadow);max-width:520px;animation:tin .2s ease-out}
#toast div.err{background:var(--danger);color:#fff}
@keyframes tin{from{transform:translateY(8px);opacity:0}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
@media (max-width:640px){.tb span{display:none}.tb{min-width:36px;padding:6px}.brand b{font-size:26px}.nav{order:3;flex-basis:100%;margin:0}}
footer{margin-top:48px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted)}
footer a{color:inherit}

/* account & plans */
.hacts{display:flex;gap:8px;align-items:center}
.acct{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--sheet);border-radius:999px;padding:6px 12px;font-size:14px;max-width:220px}
.acct span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acct .pro,.pro{font-style:normal;font-family:var(--f-mono);font-size:11px;letter-spacing:.08em;background:var(--mark);color:#17202B;border-radius:4px;padding:0 5px}
.upbtn{display:inline-flex;align-items:center;gap:6px;border:0;background:var(--mark);color:#17202B;border-radius:999px;padding:7px 14px;font-weight:600;font-size:14px}
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media (max-width:480px){.plans{grid-template-columns:1fr}}
.plan{border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:4px;background:var(--paper)}
.plan.hot{border-color:var(--accent);box-shadow:inset 0 0 0 1px var(--accent);background:var(--accent-soft)}
.plan strong{font-family:var(--f-head);font-size:18px}
.plan .pp{font-family:var(--f-head);font-size:24px;font-weight:700}
.plan .pp small{font-family:var(--f-body);font-size:13px;font-weight:400;color:var(--muted)}
.plan ul{margin:6px 0 0;padding-inline-start:18px;font-size:14px;color:var(--muted);display:flex;flex-direction:column;gap:3px}
.err-text{margin:0;color:var(--danger);font-size:14px}
.modal .box{max-height:calc(100vh - 32px);overflow:auto}
.modal a{color:var(--accent)}
@media (max-width:640px){.acct span{display:none}.hacts{margin-inline-start:auto}}