:root {
  --bg: #eef1f5; --panel: #fff; --text: #1d2433; --muted: #6b7385; --border: #dde2ea;
  --brand: #0f766e; --brand-2: #115e59; --accent: #f59e0b; --danger: #dc2626;
}
html[data-theme=dark] {
  --bg: #0c1322; --panel: #141d30; --text: #e6ecf5; --muted: #92a2ba; --border: #26334d;
  --brand: #14b8a6; --brand-2: #0d9488; --accent: #fbbf24; --danger: #f87171;
}
html[data-theme=dark] body { background: var(--bg); }
html[data-theme=dark] .ghost:hover, html[data-theme=dark] .btn-like:hover { background: #1b2740; }
html[data-theme=dark] .tab { color: var(--muted); }
html[data-theme=dark] .tab.active { color: var(--text); background: var(--panel); }
* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body { font-family: "Cairo", system-ui, sans-serif; background: var(--bg); color: var(--text); font-size: 14px; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }

.topbar {
  height: 58px; display: flex; align-items: center; gap: 16px; padding: 0 16px;
  background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 20;
}
.brand { font-weight: 700; font-size: 20px; display: inline-flex; align-items: center; }
.brand-logo { width: 30px; height: 30px; margin-inline-end: 8px; border-radius: 8px; flex: none; }
.brand span { background: var(--brand); color: #fff; border-radius: 6px; padding: 0 6px; margin-inline-start: 4px; font-size: 15px; }
.tabs { display: flex; gap: 4px; background: var(--bg); padding: 4px; border-radius: 10px; }
.tab { border: 0; background: transparent; padding: 6px 14px; border-radius: 8px; color: var(--muted); font-weight: 600; }
.tab.active { background: var(--panel); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.actions { margin-inline-start: auto; display: flex; gap: 6px; align-items: center; }
.primary { background: var(--brand); color: #fff; border: 0; border-radius: 8px; padding: 8px 16px; font-weight: 700; }
.primary:hover { background: var(--brand-2); }
.primary:disabled { opacity: .45; cursor: not-allowed; }
.ghost, .btn-like { background: transparent; border: 1px solid var(--border); border-radius: 8px; padding: 7px 12px; color: var(--text); cursor: pointer; }
.ghost:hover, .btn-like:hover { background: var(--bg); }
.wide { width: 100%; padding: 11px; font-size: 15px; margin-top: 10px; }
.mgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 8px; }

.layout { display: grid; grid-template-columns: 340px 1fr; height: calc(100vh - 58px); }
.side { background: var(--panel); border-inline-end: 1px solid var(--border); overflow-y: auto; padding: 14px; }
.panel h3 { font-size: 14px; margin: 14px 0 8px; color: var(--muted); }
.panel h3:first-child { margin-top: 0; }
.panel label { display: block; margin-bottom: 8px; font-weight: 600; font-size: 13px; }
.panel input:not([type=checkbox]), .panel select, .panel textarea {
  display: block; width: 100%; margin-top: 4px; border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px; background: #fff; font-weight: 400;
}
.panel textarea { resize: vertical; }
.panel input[type=file] { display: none !important; }
.chk { display: flex !important; gap: 8px; align-items: center; font-weight: 400 !important; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 10px; }
.hint { color: var(--muted); font-size: 12.5px; line-height: 1.7; }

.drop {
  display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 26px 12px; text-align: center;
  border: 2px dashed #b8c2d0; border-radius: 12px; background: #f8fafc; cursor: pointer; transition: .15s;
}
.drop:hover, .drop.over { border-color: var(--brand); background: #f0fdfa; }
.drop span { color: var(--muted); font-size: 12.5px; }
.thumbs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 10px; }
.thumb { position: relative; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; aspect-ratio: 3/4; background: #f1f5f9; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb button { position: absolute; top: 4px; inset-inline-start: 4px; border: 0; border-radius: 50%; width: 22px; height: 22px; background: rgba(0,0,0,.6); color: #fff; line-height: 1; }
.thumb .n { position: absolute; bottom: 3px; inset-inline-end: 6px; background: rgba(0,0,0,.6); color: #fff; border-radius: 6px; padding: 0 6px; font-size: 11px; }
.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }
.presets button { border: 1px solid var(--border); background: #f8fafc; border-radius: 999px; padding: 4px 10px; font-size: 12px; }
.presets button:hover { border-color: var(--brand); color: var(--brand); }
.gen-ready { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 6px 0 4px; }
.gen-ready button { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 4px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); font-size: 12.5px; font-weight: 600; cursor: pointer; }
.gen-ready button span { font-size: 24px; }
.gen-ready button:hover { border-color: var(--brand); color: var(--brand); }
.gen-more { margin-top: 12px; border: 1px dashed var(--border); border-radius: 10px; padding: 6px 10px; }
.gen-more summary { cursor: pointer; font-weight: 600; padding: 4px 0; }
@media (max-width: 420px) { .gen-ready { grid-template-columns: repeat(2, 1fr); } }
.orig { display: flex; flex-direction: column; gap: 8px; }
.orig img { width: 100%; border: 1px solid var(--border); border-radius: 6px; cursor: zoom-in; }

.work { display: flex; flex-direction: column; min-width: 0; }
.toolbar {
  display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 12px; background: var(--panel);
  border-bottom: 1px solid var(--border); align-items: center;
}
.toolbar .grp { display: flex; gap: 2px; align-items: center; padding-inline-end: 6px; border-inline-end: 1px solid var(--border); }
.toolbar .grp:last-child { border: 0; }
.toolbar button { border: 1px solid transparent; background: transparent; border-radius: 6px; padding: 4px 8px; min-width: 32px; }
.toolbar button:hover { background: var(--bg); border-color: var(--border); }
.toolbar input[type=color] { width: 30px; height: 28px; border: 0; padding: 0; background: none; }
#zoomVal { min-width: 44px; text-align: center; color: var(--muted); font-size: 12px; }
.pages-scroll { flex: 1; overflow: auto; padding: 24px; }
#pages { display: flex; flex-direction: column; align-items: center; gap: 22px; }
#pages .page { box-shadow: 0 2px 12px rgba(15,23,42,.12); outline: none; direction: ltr; }
#pages .page.page-rtl { direction: rtl; }
#pages .page:focus-within { box-shadow: 0 0 0 2px var(--brand), 0 2px 12px rgba(15,23,42,.12); }
#pages .math, #pages .clip, #pages .figure-wrap, #pages img.sheet-img { cursor: pointer; border-radius: 3px; }
#pages .math:hover, #pages .clip:hover, #pages .figure-wrap:hover { outline: 1.5px dashed var(--accent); outline-offset: 2px; }
#pages .page-del { position: absolute; top: 6px; inset-inline-end: 6px; border: 0; background: #fee2e2; color: var(--danger); border-radius: 6px; font-size: 12px; padding: 2px 8px; opacity: 0; transition: .15s; }
#pages .page:hover .page-del { opacity: 1; }
.empty { text-align: center; color: var(--muted); padding: 80px 20px; }
.empty-art { font-size: 64px; }
.empty h2 { color: var(--text); }

.overlay { position: fixed; inset: 0; background: rgba(15,23,42,.45); display: flex; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.overlay[hidden] { display: none; }
.busy-card { background: #fff; border-radius: 16px; padding: 28px 34px; text-align: center; min-width: 300px; }
.busy-card h3 { margin: 12px 0 4px; }
.busy-card p { color: var(--muted); margin: 0 0 14px; }
.spinner { width: 42px; height: 42px; margin: auto; border: 4px solid #e2e8f0; border-top-color: var(--brand); border-radius: 50%; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.modal { background: #fff; border-radius: 14px; width: min(760px, 100%); max-height: 92vh; display: flex; flex-direction: column; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 16px; border-bottom: 1px solid var(--border); }
.modal-head h3 { margin: 0; }
.x { border: 0; background: none; font-size: 24px; line-height: 1; color: var(--muted); }
.modal-body { padding: 14px 16px; overflow: auto; }
.modal-foot { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); justify-content: flex-start; }
.modal-foot .danger { margin-inline-start: auto; background: #fee2e2; color: var(--danger); border: 0; border-radius: 8px; padding: 8px 14px; }
.modal label { display: block; font-weight: 600; margin-bottom: 8px; }
.modal input, .modal textarea, .modal select { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 7px 9px; margin-top: 4px; }
.modal textarea.code { font-family: ui-monospace, Consolas, monospace; font-size: 12.5px; direction: ltr; text-align: left; }
.ltr { direction: ltr; text-align: left; }
.preview { min-height: 60px; border: 1px solid var(--border); border-radius: 8px; padding: 14px; margin: 8px 0; display: flex; align-items: center; justify-content: center; background: #fafafa; font-size: 20px; direction: ltr; overflow: auto; }
.symbols { display: flex; flex-wrap: wrap; gap: 4px; margin: 6px 0; direction: ltr; }
.symbols button { border: 1px solid var(--border); background: #fff; border-radius: 6px; padding: 3px 8px; min-width: 38px; font-size: 15px; }
.symbols button:hover { border-color: var(--brand); }
.icon-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(58px, 1fr)); gap: 6px; max-height: 220px; overflow: auto; margin-bottom: 10px; }
.icon-grid button { border: 2px solid var(--border); background: #fff; border-radius: 8px; padding: 6px; aspect-ratio: 1; }
.icon-grid button.sel { border-color: var(--brand); background: #f0fdfa; }
.icon-grid svg { width: 100%; height: 100%; }
.grid3 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.tabs-mini { display: flex; gap: 6px; margin-bottom: 10px; }
.tabs-mini button { border: 1px solid var(--border); background: #fff; border-radius: 8px; padding: 5px 12px; }
.tabs-mini button.active { background: var(--brand); color: #fff; border-color: var(--brand); }
.crop-stage { position: relative; display: inline-block; max-width: 100%; user-select: none; touch-action: none; }
.crop-stage img { max-width: 100%; max-height: 60vh; display: block; }
.crop-rect { position: absolute; border: 2px solid var(--brand); background: rgba(15,118,110,.15); pointer-events: none; }

.toast { position: fixed; bottom: 22px; left: 50%; transform: translateX(-50%); background: #1f2937; color: #fff; padding: 10px 18px; border-radius: 10px; z-index: 60; max-width: 90vw; }
.toast.err { background: var(--danger); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; height: auto; }
  .side { border: 0; border-bottom: 1px solid var(--border); }
  .topbar { height: auto; flex-wrap: wrap; padding: 8px; gap: 8px; }
  .actions { margin: 0; flex-wrap: wrap; }
  .pages-scroll { padding: 10px; }
}

@media print {
  body { background: #fff; }
  .layout { display: block; height: auto; margin-inline-start: 0 !important; width: auto !important; }
  .side, .toolbar, .topbar, .tabs, .empty { display: none !important; }
  .work, .pages-scroll { display: block; overflow: visible; padding: 0; }
  #pages { display: block; zoom: 1 !important; }
  #pages .page { box-shadow: none; }
  #pages .page-del { display: none; }
  #pages .math:hover, #pages .clip:hover, #pages .figure-wrap:hover { outline: none; }
}

/* ---------- 🎨 غلاف بالذكاء الاصطناعي ---------- */
.page.es-cover { padding: 0; }
.page.es-cover img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: inherit; }
.co-out { display: flex; flex-direction: column; gap: 10px; align-items: center; margin-top: 8px; }
.co-preview { width: 70%; max-width: 320px; border-radius: 12px; box-shadow: 0 10px 30px rgba(0, 0, 0, .25); }
.co-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.co-hint { margin: 8px 0 2px; color: #64748b; font-size: 12px; }
.hint.warn { color: #b45309; font-weight: 600; }

.wm-modes { display: flex; flex-direction: column; gap: 6px; margin: 6px 0 4px; }
.wm-modes label { display: flex !important; gap: 8px; align-items: center; font-weight: 600; }
.wm-prev { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.wm-prev figure { margin: 0; text-align: center; font-size: 12px; color: var(--muted); }
.wm-prev canvas { width: 100%; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
.err-details { direction: ltr; text-align: left; white-space: pre-wrap; font-size: 12px; max-height: 45vh; overflow: auto; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: 8px; }

/* ---------- 💾 حفظ بصيغ تانية + مقاس الورق ---------- */
.fmt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 8px; }
.fmt-btn { display: flex; flex-direction: column; gap: 3px; text-align: start; border: 1px solid var(--border); background: var(--panel); color: var(--text); border-radius: 10px; padding: 10px 12px; }
.fmt-btn:hover { border-color: var(--brand); }
.fmt-btn small { color: var(--muted); font-size: 12px; line-height: 1.5; }
#paperSize { border: 1px solid var(--border); border-radius: 6px; padding: 3px 6px; background: var(--panel); color: var(--text); }

/* شارة حالة الاشتراك في تاب الإنشاء (أدمن / باقة / تجربة / مقفول) */
.planchip {
  display: flex; align-items: center; gap: 8px;
  font-size: 12.5px; line-height: 1.5; padding: 7px 11px; border-radius: 12px;
  border: 1.5px solid rgba(0,0,0,.12); margin: 0 0 10px;
}
.planchip::before { content: "●"; font-size: 13px; }
.planchip.ok   { background: #e9f8ef; border-color: #b7e2c6; color: #0d7a3f; }
.planchip.trial{ background: #fff7e2; border-color: #ecd9a0; color: #8a6608; }
.planchip.warn { background: #eef3ff; border-color: #c3d2f2; color: #1c4fa0; }
.planchip.lock { background: #ffecec; border-color: #f2c4c4; color: #a31c1c; }
[data-theme=dark] .planchip { border-color: rgba(255,255,255,.16); }
[data-theme=dark] .planchip.ok   { background: rgba(46,204,113,.14); color: #7ce0a5; }
[data-theme=dark] .planchip.trial{ background: rgba(245,197,66,.14);  color: #ecd48a; }
[data-theme=dark] .planchip.warn { background: rgba(96,156,255,.14);  color: #9dbcef; }
[data-theme=dark] .planchip.lock { background: rgba(255,105,105,.14); color: #f1a0a0; }

/* = مركز الطباعة والملفات (تاب صفحة كاملة في السيد بار) = */
.pc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(172px, 1fr)); gap: 10px; margin: 10px 0; }
.pc-btn {
  border: 1px solid var(--border); background: #fff; color: var(--text);
  border-radius: 14px; padding: 12px 10px; cursor: pointer; font: inherit;
  display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center;
  transition: transform .12s ease, box-shadow .12s ease, border-color .12s ease;
}
.pc-btn:hover { transform: translateY(-2px); border-color: #14b8a6; box-shadow: 0 6px 14px rgba(15,23,42,.08); }
.pc-btn .i { font-size: 22px; line-height: 1.25; }
.pc-btn b { font-size: 14px; }
.pc-btn small { color: var(--muted); font-size: 11.5px; }
.pc-group { margin-top: 14px; }
.pc-group > h3 { margin: 6px 0 2px; }
[data-theme=dark] .pc-btn { background: var(--panel); }
[data-theme=dark] .pc-btn:hover { box-shadow: 0 6px 14px rgba(0,0,0,.35); }