:root {
  --navy: #0B2556;
  --navy-2: #123F7E;
  --cyan: #02A7C7;
  --blue: #4299CE;
  --bg: #F4F6FA;
  --card: #FFFFFF;
  --line: #DCE3EC;
  --text: #16233A;
  --muted: #6B7A93;
  --ok: #0E9F6E;
  --warn: #C98A00;
  --danger: #D64545;
  --radius: 10px;
  --shadow: 0 6px 22px rgba(11, 37, 86, .10);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
  font-size: 14px;
}

button, input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }

.hidden { display: none !important; }

button {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  padding: 8px 13px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .12s, border-color .12s, transform .06s;
}
button:hover { border-color: var(--navy-2); }
button:active { transform: translateY(1px); }
button.primary { background: var(--navy); border-color: var(--navy); color: #fff; font-weight: 700; }
button.primary:hover { background: var(--navy-2); }
button.ghost { background: transparent; }
button.danger { color: var(--danger); border-color: #f0d3d3; }
button.danger:hover { background: #fdf2f2; border-color: var(--danger); }
button:disabled { opacity: .5; cursor: not-allowed; }

/* ---------- شاشة الدخول ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 55%, #145682 100%);
}
.login-card {
  background: var(--card);
  padding: 30px 28px 26px;
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(4, 18, 44, .35);
  width: 340px;
  text-align: center;
}
.login-card img { width: 130px; margin-bottom: 6px; }
.login-card h1 { margin: 4px 0 18px; font-size: 19px; color: var(--navy); }
.login-card label { display: block; text-align: right; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
.login-card input {
  width: 100%;
  margin-top: 5px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfe;
}
.login-card input:focus { outline: 2px solid var(--blue); outline-offset: -1px; }
.login-card button { width: 100%; margin-top: 6px; }
.err { color: var(--danger); font-size: 13px; min-height: 20px; margin-top: 8px; }

/* ---------- الهيكل ---------- */
header.app-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 18px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
header.app-head img { height: 46px; }
header.app-head h1 { font-size: 17px; margin: 0; color: var(--navy); }
header.app-head .sub { font-size: 12px; color: var(--muted); }
.spacer { flex: 1; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding: 10px 18px;
  background: var(--card);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 67px;
  z-index: 19;
}
.toolbar input[type="search"], .toolbar input[type="text"], .toolbar select {
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfe;
}
.toolbar input[type="search"] { width: 240px; }
.sep { width: 1px; height: 24px; background: var(--line); margin: 0 4px; }

/* ---------- الشبكة ---------- */
.grid-wrap { padding: 14px 18px 90px; overflow: auto; }
table.grid { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); }
table.grid th, table.grid td { border-bottom: 1px solid var(--line); padding: 0; }
table.grid thead th {
  position: sticky; top: 0; z-index: 5;
  background: #EEF3F9; color: var(--navy);
  font-size: 12.5px; font-weight: 700; text-align: right;
  padding: 9px 10px; white-space: nowrap;
}
table.grid th.sortable { cursor: pointer; }
table.grid th.sortable:hover { background: #E4EDF7; }
table.grid td { background: var(--card); }
table.grid tr:hover td { background: #FAFCFF; }
table.grid td input {
  width: 100%; border: 0; background: transparent; padding: 9px 10px; margin: 0;
}
table.grid td input:focus { outline: 2px solid var(--blue); outline-offset: -2px; background: #fff; }
table.grid td.num input { font-variant-numeric: tabular-nums; text-align: right; }
table.grid td.dirty { background: #FFF8E5; }
table.grid tr.saved td { background: #EFFBF5; }
table.grid td.actions { white-space: nowrap; text-align: center; }
table.grid td.actions button { padding: 5px 9px; font-size: 12px; margin: 0 2px; }
table.grid td.pick { text-align: center; width: 40px; }
table.grid td.code input { font-weight: 700; color: var(--navy); font-variant-numeric: tabular-nums; }
table.grid tr.empty-note td { padding: 26px; text-align: center; color: var(--muted); }
.dup input { color: var(--warn); }

.col-notes { min-width: 150px; }
.col-name { min-width: 220px; }
.col-code { min-width: 110px; }
.col-price { min-width: 92px; }
.col-small { min-width: 84px; }
.col-loc { min-width: 120px; }

/* ---------- شريط الحالة ---------- */
.statusbar {
  position: fixed; bottom: 0; right: 0; left: 0;
  display: flex; align-items: center; gap: 14px;
  padding: 9px 18px;
  background: var(--navy); color: #fff;
  font-size: 12.5px; z-index: 30;
}
.statusbar .dot { width: 8px; height: 8px; border-radius: 50%; background: #7FB2E5; display: inline-block; margin-left: 6px; }
.statusbar .dot.ok { background: #48D597; }
.statusbar .dot.busy { background: #FFC94A; }
.statusbar .dot.err { background: #FF7A7A; }

/* ---------- النوافذ ---------- */
dialog {
  border: 0; border-radius: 14px; padding: 0; box-shadow: 0 20px 60px rgba(6, 22, 50, .3);
  width: min(560px, 92vw); color: var(--text);
}
dialog::backdrop { background: rgba(8, 24, 52, .45); }
dialog .dlg-head { display: flex; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
dialog .dlg-head h2 { margin: 0; font-size: 16px; color: var(--navy); }
dialog .dlg-body { padding: 16px 18px; max-height: 70vh; overflow: auto; }
dialog .dlg-foot { padding: 12px 18px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 8px; }
dialog label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--muted); }
dialog input, dialog textarea {
  width: 100%; margin-top: 5px; padding: 9px 11px;
  border: 1px solid var(--line); border-radius: var(--radius); background: #fbfcfe;
}
dialog textarea { min-height: 110px; resize: vertical; font-size: 13px; }
.hint { font-size: 12px; color: var(--muted); margin: 4px 0 12px; }
table.mini { width: 100%; border-collapse: collapse; font-size: 13px; }
table.mini th, table.mini td { border-bottom: 1px solid var(--line); padding: 7px 6px; text-align: right; }
.toast {
  position: fixed; bottom: 54px; right: 18px; background: var(--navy); color: #fff;
  padding: 10px 16px; border-radius: var(--radius); box-shadow: var(--shadow); z-index: 40;
  font-size: 13px; opacity: 0; transform: translateY(8px); transition: opacity .18s, transform .18s;
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.bad { background: var(--danger); }

@media print {
  header.app-head, .toolbar, .statusbar, .login-wrap { display: none !important; }
}