/* ===== دليل استعمال نظام المحاسبة — تنسيق مشترك لكل الصفحات ===== */

@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 400; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-arabic-400-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 400; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 500; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-arabic-500-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 500; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-latin-500-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 600; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-arabic-600-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 600; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-latin-600-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 700; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-arabic-700-normal.woff2') format('woff2');
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+FB50-FDFF, U+FE70-FEFF;
}
@font-face {
  font-family: 'IBM Plex Sans Arabic'; font-style: normal; font-weight: 700; font-display: swap;
  src: url('fonts/ibm-plex-sans-arabic-latin-700-normal.woff2') format('woff2');
}

:root {
  --ink: #0f172a;
  --text: #334155;
  --muted: #64748b;
  --line: #e2e8f0;
  --bg: #f8fafc;
  --card: #ffffff;
  --brand: #2563eb;
  --brand-soft: #eff6ff;
  --green: #047857;
  --green-soft: #ecfdf5;
  --amber: #b45309;
  --amber-soft: #fffbeb;
  --red: #be123c;
  --red-soft: #fff1f2;
  --violet: #6d28d9;
  --violet-soft: #f5f3ff;
  --radius: 14px;
  --nav: 268px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 20px; }

body {
  margin: 0;
  font-family: 'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.85;
  font-size: 16px;
}

/* ------------------------------- التخطيط ------------------------------- */
.layout { display: flex; min-height: 100vh; }

.nav {
  width: var(--nav); flex: 0 0 var(--nav);
  background: #0b1220; color: #cbd5e1;
  position: sticky; top: 0; align-self: flex-start;
  height: 100vh; overflow-y: auto; padding: 18px 14px 28px;
}
.nav .brand { display: flex; gap: 10px; align-items: center; padding: 6px 8px 16px; }
.nav .brand .mark {
  width: 38px; height: 38px; border-radius: 11px; background: var(--brand);
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 18px;
}
.nav .brand b { color: #fff; font-size: 15px; display: block; line-height: 1.4; }
.nav .brand span { font-size: 11.5px; color: #64748b; }
.nav .back-app {
  display: block; margin: 0 4px 6px; padding: 8px 11px; border-radius: 10px;
  background: rgba(37, 99, 235, .15); color: #bfdbfe; border: 1px solid rgba(37, 99, 235, .3);
  font-size: 13.5px; font-weight: 600; text-decoration: none; text-align: center;
}
.nav .back-app:hover { background: rgba(37, 99, 235, .28); color: #fff; }

.nav .group { font-size: 11px; color: #64748b; padding: 14px 10px 6px; letter-spacing: .3px; }
.nav a {
  display: flex; align-items: center; gap: 9px; justify-content: space-between;
  padding: 8px 11px; border-radius: 10px; color: #cbd5e1;
  text-decoration: none; font-size: 14px; font-weight: 500;
}
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav a.active { background: #1d283a; color: #fff; box-shadow: inset -3px 0 0 var(--brand); }
.nav a .num { font-size: 11px; color: #64748b; font-variant-numeric: tabular-nums; }

.main { flex: 1; min-width: 0; padding: 30px 38px 70px; max-width: 1180px; }

/* -------------------------------- النصوص -------------------------------- */
.crumbs { font-size: 13px; color: var(--muted); margin-bottom: 10px; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--brand); }

h1 { font-size: 30px; line-height: 1.45; color: var(--ink); margin: 0 0 8px; }
h2 {
  font-size: 22px; color: var(--ink); margin: 42px 0 12px;
  padding-top: 18px; border-top: 1px solid var(--line);
}
h2:first-of-type { border-top: 0; padding-top: 0; }
h3 { font-size: 17.5px; color: var(--ink); margin: 26px 0 8px; }
p { margin: 0 0 14px; }
.lead { font-size: 17.5px; color: #475569; margin-bottom: 22px; }

a { color: var(--brand); }
b, strong { color: var(--ink); font-weight: 600; }
code, .mono { font-family: 'IBM Plex Sans Arabic', ui-monospace, monospace; direction: ltr; unicode-bidi: isolate; }
code {
  background: #eef2f7; border: 1px solid var(--line); border-radius: 6px;
  padding: 1px 6px; font-size: 13.5px; color: #0f172a;
}
.num { font-variant-numeric: tabular-nums; direction: ltr; unicode-bidi: isolate; }

ul, ol { margin: 0 0 16px; padding-inline-start: 24px; }
li { margin-bottom: 7px; }

kbd {
  display: inline-block; min-width: 24px; text-align: center;
  background: #fff; border: 1px solid #cbd5e1; border-bottom-width: 2px;
  border-radius: 6px; padding: 1px 7px; font-size: 12.5px; font-weight: 600;
  color: #0f172a; direction: ltr; unicode-bidi: isolate;
}

/* ------------------------------- البطاقات ------------------------------- */
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 18px 20px; margin: 0 0 18px;
}
.card > :last-child { margin-bottom: 0; }

.note {
  border-inline-start: 4px solid var(--brand); background: var(--brand-soft);
  border-radius: 10px; padding: 13px 16px; margin: 0 0 18px; font-size: 15px;
}
.note b:first-child { display: block; margin-bottom: 2px; }
.note.warn { border-color: var(--amber); background: var(--amber-soft); }
.note.danger { border-color: var(--red); background: var(--red-soft); }
.note.good { border-color: var(--green); background: var(--green-soft); }
.note > :last-child { margin-bottom: 0; }

/* -------------------------------- الصور -------------------------------- */
figure {
  margin: 0 0 26px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
}
figure img { display: block; width: 100%; height: auto; cursor: zoom-in; background: #f1f5f9; }
figcaption {
  font-size: 14px; color: var(--muted); padding: 11px 16px;
  border-top: 1px solid var(--line); background: #fbfcfe;
}
figcaption b { color: var(--ink); }

/* --------------------------- شرح أجزاء الشاشة --------------------------- */
.parts { display: grid; gap: 0; margin: 0 0 20px; }
.parts > div {
  display: grid; grid-template-columns: 200px 1fr; gap: 16px;
  padding: 11px 0; border-bottom: 1px dashed var(--line);
}
.parts > div:last-child { border-bottom: 0; }
.parts dt, .parts .k { color: var(--ink); font-weight: 600; }
.parts dd, .parts .v { margin: 0; }

/* -------------------------------- الخطوات -------------------------------- */
ol.steps { counter-reset: step; list-style: none; padding: 0; margin: 0 0 20px; }
ol.steps > li {
  counter-increment: step; position: relative;
  padding: 2px 46px 14px 0; margin: 0; border-inline-start: 0;
}
ol.steps > li::before {
  content: counter(step); position: absolute; inset-inline-start: 0; top: 2px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--brand); color: #fff; font-weight: 700; font-size: 14px;
  display: grid; place-items: center;
}

/* -------------------------------- الجداول -------------------------------- */
table { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 15px; background: #fff; }
th, td { border: 1px solid var(--line); padding: 9px 12px; text-align: right; vertical-align: top; }
th { background: #f1f5f9; color: var(--ink); font-weight: 600; }

/* -------------------------------- الشارات -------------------------------- */
.tag {
  display: inline-block; border-radius: 999px; padding: 1px 10px;
  font-size: 12.5px; font-weight: 600; border: 1px solid;
}
.tag.blue { color: var(--brand); background: var(--brand-soft); border-color: #bfdbfe; }
.tag.green { color: var(--green); background: var(--green-soft); border-color: #a7f3d0; }
.tag.amber { color: var(--amber); background: var(--amber-soft); border-color: #fde68a; }
.tag.red { color: var(--red); background: var(--red-soft); border-color: #fecdd3; }
.tag.violet { color: var(--violet); background: var(--violet-soft); border-color: #ddd6fe; }
.tag.gray { color: #475569; background: #f1f5f9; border-color: var(--line); }

/* ------------------------------ صفحة الفهرس ------------------------------ */
.hero {
  background: linear-gradient(135deg, #0b1220, #1e293b);
  color: #e2e8f0; border-radius: 20px; padding: 34px 36px; margin-bottom: 26px;
}
.hero h1 { color: #fff; font-size: 34px; margin-bottom: 10px; }
.hero p { color: #94a3b8; font-size: 17px; max-width: 70ch; }
.hero .chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.hero .chips span {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px; padding: 3px 13px; font-size: 13px; color: #cbd5e1;
}

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(295px, 1fr)); gap: 16px; margin-bottom: 26px; }
.tile {
  display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 17px 19px; text-decoration: none; color: inherit;
}
.tile:hover { border-color: #93c5fd; box-shadow: 0 6px 18px -12px rgba(15,23,42,.45); }
.tile .n { font-size: 12px; color: var(--muted); font-variant-numeric: tabular-nums; }
.tile b { display: block; color: var(--ink); font-size: 17px; margin: 2px 0 5px; }
.tile span.d { display: block; font-size: 14.5px; color: var(--muted); line-height: 1.7; }

.pager { display: flex; justify-content: space-between; gap: 14px; margin-top: 46px; border-top: 1px solid var(--line); padding-top: 18px; }
.pager a { text-decoration: none; font-weight: 600; font-size: 15px; }
.pager a.prev::before { content: '→ '; }
.pager a.next::after { content: ' ←'; }

footer.foot { margin-top: 40px; font-size: 13px; color: var(--muted); }

/* ------------------------------ تكبير الصورة ------------------------------ */
.zoom {
  position: fixed; inset: 0; background: rgba(2, 6, 23, .88);
  display: none; place-items: center; z-index: 100; padding: 22px; cursor: zoom-out;
}
.zoom.on { display: grid; }
.zoom img { max-width: 100%; max-height: 100%; border-radius: 8px; }

@media (max-width: 900px) {
  .layout { flex-direction: column; }
  .nav { width: 100%; height: auto; position: static; }
  .main { padding: 22px 18px 50px; }
  .parts > div { grid-template-columns: 1fr; gap: 2px; }
}

@media print {
  .nav, .pager, .zoom { display: none; }
  .main { max-width: none; padding: 0; }
  figure, .card, .note { break-inside: avoid; }
}