:root{
  --navy:#0b2a5b; --navy-2:#1d3f7a; --maroon:#8b0000; --title:#990000;
  --ink:#1b2230; --muted:#6b7385; --line:#e3e6ee; --bg:#f3f4f8; --card:#fff;
  --accent:#0b2a5b; --ok:#0f7a4a; --danger:#b42318;
  --radius:12px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:"Cairo","Tajawal",Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6}
a{color:var(--navy)}
button,input,select,textarea{font-family:inherit;font-size:14px;color:inherit}

/* ---------- top bar ---------- */
.topbar{background:var(--navy);color:#fff;display:flex;align-items:center;gap:16px;padding:10px 20px;position:sticky;top:0;z-index:50;flex-wrap:wrap}
.topbar .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#fff;text-decoration:none}
.topbar .brand img{height:34px;background:#fff;border-radius:8px;padding:3px}
.topbar nav{display:flex;gap:4px;margin-inline-start:auto;flex-wrap:wrap}
.topbar nav a{color:#dfe6f5;text-decoration:none;padding:6px 12px;border-radius:8px;font-weight:600}
.topbar nav a:hover,.topbar nav a.on{background:rgba(255,255,255,.14);color:#fff}

.wrap{max-width:1200px;margin:0 auto;padding:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:16px}
.card h2{margin:0 0 12px;font-size:16px;color:var(--navy)}
.card h3{margin:0 0 10px;font-size:14px;color:var(--navy)}

label{display:block;font-weight:700;font-size:12.5px;color:var(--muted);margin:10px 0 4px}
input[type=text],input[type=password],input[type=number],input[type=date],input[type=search],textarea,select{
  width:100%;border:1px solid #cfd5e2;border-radius:9px;padding:8px 10px;background:#fff;outline:none;transition:border .15s,box-shadow .15s}
input:focus,textarea:focus,select:focus{border-color:var(--navy-2);box-shadow:0 0 0 3px rgba(29,63,122,.15)}
textarea{resize:vertical;min-height:70px}
.row{display:flex;gap:10px}
.row>*{flex:1;min-width:0}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid transparent;border-radius:9px;padding:8px 14px;font-weight:700;cursor:pointer;background:var(--navy);color:#fff;text-decoration:none;white-space:nowrap}
.btn:hover{filter:brightness(1.12)}
.btn.ghost{background:#fff;color:var(--navy);border-color:#cfd5e2}
.btn.ok{background:var(--ok)}
.btn.danger{background:#fff;color:var(--danger);border-color:#f1c6c1}
.btn.sm{padding:4px 9px;font-size:12.5px;border-radius:7px}
.btn:disabled{opacity:.5;cursor:default}

.alert{padding:10px 14px;border-radius:9px;margin-bottom:14px;font-weight:600}
.alert.ok{background:#e7f6ee;color:var(--ok)}
.alert.err{background:#fdecea;color:var(--danger)}
.alert.warn{background:#fff6e0;color:#8a5a00}
.muted{color:var(--muted)}
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(30px);background:#111a2e;color:#fff;padding:10px 18px;border-radius:10px;opacity:0;transition:.25s;z-index:999;font-weight:700}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

table.grid{width:100%;border-collapse:collapse;background:#fff}
table.grid th,table.grid td{border-bottom:1px solid var(--line);padding:9px 8px;text-align:right;vertical-align:top}
table.grid th{font-size:12.5px;color:var(--muted);background:#fafbfd}
table.grid tr:hover td{background:#fafbff}

/* ---------- editor layout ---------- */
.editor{display:grid;grid-template-columns:420px 1fr;gap:18px;padding:18px;align-items:start}
.panel{position:sticky;top:70px;max-height:calc(100vh - 86px);overflow:auto;padding-bottom:10px}
.panel .card{padding:14px}
.preview-wrap{overflow:hidden;display:flex;justify-content:center}
.preview-scale{transform-origin:top center}

.search-box{position:relative}
.results{position:absolute;inset-inline:0;top:100%;margin-top:4px;background:#fff;border:1px solid #cfd5e2;border-radius:10px;box-shadow:0 12px 30px rgba(15,30,60,.15);max-height:360px;overflow:auto;z-index:30;display:none}
.results.open{display:block}
.results .r{padding:9px 12px;border-bottom:1px solid var(--line);cursor:pointer;display:flex;gap:10px;align-items:flex-start}
.results .r:last-child{border-bottom:0}
.results .r.act,.results .r:hover{background:#eef3fc}
.results .r .n{flex:1;font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.results .r .p{font-weight:800;color:var(--navy);white-space:nowrap;font-size:13px}
.results .empty{padding:12px;color:var(--muted)}
mark{background:#ffe9a8;color:inherit;border-radius:3px}

.item{border:1px solid var(--line);border-radius:10px;padding:10px;margin-bottom:10px;background:#fbfcfe}
.item .head{display:flex;align-items:center;gap:6px;margin-bottom:6px}
.item .num{background:var(--navy);color:#fff;border-radius:6px;min-width:24px;text-align:center;font-weight:800;font-size:12px;padding:1px 6px}
.item .head .sp{flex:1}
.item textarea{min-height:52px;font-size:13px}
.item .nums{display:grid;grid-template-columns:1fr 1.3fr 1.3fr;gap:8px;margin-top:6px}
.item .nums label{margin:0 0 2px}
.item .line-total{font-weight:800;color:var(--navy);padding:8px 0;font-size:14px}
.item .changed{font-size:11.5px;color:#a15c00}
.totals-mini{display:grid;grid-template-columns:1fr auto;gap:4px 10px;font-size:13.5px}
.totals-mini b{color:var(--navy)}
.totals-mini .grand{font-size:16px;border-top:1px solid var(--line);padding-top:6px;margin-top:4px}
.chk{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);margin:6px 0;font-size:13.5px}
.chk input{width:16px;height:16px}
.actions{display:flex;gap:8px;flex-wrap:wrap}
.badge{display:inline-block;background:#eef3fc;color:var(--navy);font-weight:800;border-radius:7px;padding:2px 9px;font-size:12.5px}

/* ---------- A4 sheet ---------- */
.sheet{width:210mm;min-height:297mm;background:#fff;box-shadow:0 6px 30px rgba(15,30,60,.12);padding:10mm 11mm 12mm;color:#000;font-family:"Cairo",Arial,sans-serif;font-size:11.5pt;line-height:1.55;direction:rtl;display:flex;flex-direction:column}
.sheet .lh{display:grid;grid-template-columns:1fr 34mm 1fr;align-items:center;gap:6mm;color:#000080;font-weight:800;padding-bottom:3mm;border-bottom:2.5px solid #000080;position:relative}
.sheet .lh::after{content:"";position:absolute;inset-inline:0;bottom:-5px;border-bottom:1px solid #000080}
.sheet .lh .co{text-align:center;font-size:10.5pt;line-height:1.55}
.sheet .lh .co .name{font-size:13pt;line-height:1.45;white-space:pre-line}
.sheet .lh .co .info{font-size:9.5pt;font-weight:700;white-space:pre-line;margin-top:1.5mm}
.sheet .lh .logo{text-align:center}
.sheet .lh .logo img{width:30mm;height:auto;max-height:30mm;object-fit:contain}
.sheet .lh .svc{text-align:center;font-size:10.5pt;line-height:1.65;white-space:pre-line}
.sheet .title{text-align:center;margin:6mm 0 4mm}
.sheet .title span{display:inline-block;color:var(--title);font-size:20pt;font-weight:900;letter-spacing:2px;border:2px solid var(--title);border-radius:3mm;padding:0 9mm 1mm}
.sheet .meta{display:flex;justify-content:space-between;gap:6mm;font-weight:800;font-size:12.5pt;margin-bottom:3mm}
.sheet .meta .to{flex:1}
.sheet .meta .dt{text-align:left;white-space:nowrap;font-size:11.5pt}
.sheet .meta .dt div{line-height:1.6}
.sheet .letter{font-weight:700;font-size:11.5pt;margin-bottom:3mm}
.sheet .letter p{margin:0 0 1mm}
.sheet .letter .greet{text-align:center;margin-bottom:2mm}
.sheet table.items{width:100%;border-collapse:collapse;font-size:10pt;page-break-inside:auto}
.sheet table.items thead{display:table-header-group}
.sheet table.items tr{page-break-inside:avoid;break-inside:avoid}
.sheet table.items th{background:#ededed;color:var(--maroon);font-weight:900;border:1px solid #000;padding:1.6mm 1mm;font-size:10pt;line-height:1.3}
.sheet table.items td{border:1px solid #000;padding:1.5mm 1.5mm;vertical-align:middle;text-align:center;font-weight:700}
.sheet table.items td.desc{text-align:right;font-weight:700;font-size:9.8pt;line-height:1.55;white-space:pre-line}
.sheet table.items td.n{white-space:nowrap;direction:ltr;font-variant-numeric:tabular-nums}
.sheet table.items .empty td{color:#999;padding:6mm;font-weight:600}
.sheet .sum{display:flex;gap:5mm;margin-top:3mm;align-items:stretch;break-inside:avoid;page-break-inside:avoid}
.sheet .sum .words{flex:1;border:1px solid #000;padding:2mm 3mm;font-weight:800;font-size:11pt;display:flex;flex-direction:column;justify-content:center}
.sheet .sum .words small{display:block;color:var(--maroon);font-size:9.5pt;margin-bottom:1mm}
.sheet .sum table{border-collapse:collapse;min-width:78mm;font-size:10.5pt}
.sheet .sum td{border:1px solid #000;padding:1.4mm 2.5mm;font-weight:800}
.sheet .sum td.l{background:#ededed;color:var(--maroon)}
.sheet .sum td.v{text-align:left;direction:ltr;white-space:nowrap;font-variant-numeric:tabular-nums}
.sheet .sum tr.grand td{font-size:12pt}
.sheet .sum tr.grand td.l{background:#000080;color:#fff}
.sheet .notes{margin-top:4mm;border:1px solid #000;padding:2mm 4mm;break-inside:avoid;page-break-inside:avoid}
.sheet .notes .h{font-weight:900;font-size:12pt;text-decoration:underline;margin-bottom:1mm}
.sheet .notes .b{white-space:pre-line;font-weight:700;font-size:11pt;line-height:1.75}
.sheet .sig{margin-top:5mm;display:flex;break-inside:avoid;page-break-inside:avoid}
.sheet .sig .box{width:50%;text-align:center;font-weight:900;font-size:11pt}
.sheet .sig .box img{display:block;margin:2mm auto 0;width:44mm;height:auto;transform:rotate(-4deg)}
.sheet .sig .box .ph{height:24mm}
.sheet .spacer{flex:1}

/* ---------- print ---------- */
@page{size:A4;margin:8mm}
@media print{
  body{background:#fff}
  .no-print,.topbar,.panel,.toast{display:none!important}
  .editor{display:block;padding:0}
  .preview-wrap{display:block;overflow:visible}
  .preview-scale{transform:none!important;height:auto!important;width:auto!important}
  .sheet{width:auto;min-height:0;box-shadow:none;padding:0;margin:0}
  .sheet .lh,.sheet table.items th,.sheet .sum td.l,.sheet .title span{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .sheet *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

.mtabs{display:none}
.actbar{position:sticky;bottom:0;z-index:5;box-shadow:0 -6px 18px rgba(15,30,60,.06)}
.bar-total{display:none}
.flt{max-width:300px}

/* ---------- tablet / phone ---------- */
@media screen and (max-width:1100px){
  .editor{grid-template-columns:1fr;padding:12px 12px 96px}
  .panel{position:static;max-height:none;overflow:visible}
  .mtabs{display:flex;position:sticky;top:0;z-index:40;background:var(--bg);padding:10px 12px 6px;gap:6px}
  .mtabs button{flex:1;border:1px solid #cfd5e2;background:#fff;border-radius:10px;padding:9px 6px;font-weight:800;color:var(--navy);cursor:pointer}
  .mtabs button.on{background:var(--navy);color:#fff;border-color:var(--navy)}
  body:not(.m-preview) .preview-wrap{display:none}
  body.m-preview .panel>:not(.actbar){display:none}
  /* شريط الحفظ ثابت أسفل الشاشة */
  .actbar{position:fixed!important;bottom:0;left:0;right:0;margin:0;border-radius:14px 14px 0 0;z-index:60;
          display:grid;grid-template-columns:1fr auto auto;gap:8px;padding:10px 12px calc(10px + env(safe-area-inset-bottom));
          box-shadow:0 -6px 24px rgba(15,30,60,.14);align-items:center}
  .actbar .bar-total{display:flex;flex-direction:column;line-height:1.2}
  .actbar .bar-total small{color:var(--muted);font-size:11px;font-weight:700}
  .actbar .bar-total b{color:var(--navy);font-size:17px;direction:ltr;text-align:right}
  .actbar #btnCopy,.actbar a.btn{display:none}
  .actbar #btnPrint{padding:10px 12px}
  .actbar #btnSave{padding:10px 16px}
}
@media screen and (max-width:700px){
  body{font-size:15px}
  /* يمنع الآيفون من التكبير عند الكتابة */
  input[type=text],input[type=password],input[type=number],input[type=date],input[type=search],textarea,select{font-size:16px;padding:10px 12px}
  .wrap{padding:12px}
  .topbar{position:static;padding:8px 12px;gap:6px}
  .topbar .brand{font-size:15px}
  .topbar nav{width:100%;margin:0;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
  .topbar nav::-webkit-scrollbar{display:none}
  .topbar nav a{flex:0 0 auto;padding:6px 11px;font-size:13.5px}
  .row{flex-direction:column;gap:0}
  .row>*{flex:1 1 auto!important}
  .card{padding:14px;border-radius:12px}
  .item .nums{grid-template-columns:1fr 1fr;gap:8px}
  .item .nums>div:last-child{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;border-top:1px dashed var(--line);margin-top:2px}
  .item .nums>div:last-child label{margin:0}
  .item .head .btn.sm{padding:6px 11px}
  .results{max-height:calc(100vh - 260px)}
  #fSearch{scroll-margin-top:64px}
  .results .r{padding:11px 12px}
  .flt{max-width:none;flex:1 1 100%}
  /* الجداول تتحول لبطاقات */
  table.cards thead{display:none}
  table.cards,table.cards tbody,table.cards tr,table.cards td{display:block;width:100%}
  table.cards tr{border-bottom:8px solid var(--bg);padding:10px 12px}
  table.cards td{border:0;padding:3px 0;display:flex;justify-content:space-between;gap:12px}
  table.cards td[data-l]::before{content:attr(data-l);color:var(--muted);font-size:12.5px;font-weight:700}
  table.cards td.main{display:block;font-weight:700;padding-bottom:6px}
  table.cards td.acts{justify-content:flex-start;gap:8px;padding-top:8px}
  table.cards td.acts .btn{flex:1}
  table.cards td[colspan]{display:block;text-align:center}
}