/* =========================================================
   PLM — نظام إدارة دورة حياة المنتج
   هوية بصرية فاتحة | التوقيع: خط دورة الحياة (بارد → دافئ)
   ========================================================= */

:root{
  /* أسطح */
  --paper:#F3F6FC;
  --paper-tint:#EAF0FB;
  --card:#FFFFFF;
  --card-2:#FBFCFF;

  /* حبر */
  --ink:#141C31;
  --ink-soft:#5A6480;
  --ink-faint:#8A93AC;
  --line:#E2E8F4;
  --line-strong:#CBD5EC;

  /* الطيف الأساسي */
  --indigo:#4338CA;
  --indigo-600:#4F46E5;
  --violet:#7C5CFF;
  --magenta:#B14AE8;
  --rose:#E8567A;
  --coral:#FF7A59;

  /* دلالات */
  --emerald:#0FB981;   /* اعتماد / جودة */
  --amber:#F5A524;     /* فكرة / انتباه */

  /* شريط دورة الحياة: يمين=بداية(بارد) → يسار=نهاية(دافئ) في RTL */
  --spine: linear-gradient(to left,#4338CA 0%,#6D5CF5 26%,#B14AE8 52%,#E8567A 76%,#FF7A59 100%);
  --spine-h: linear-gradient(90deg,#4338CA,#6D5CF5,#B14AE8,#E8567A,#FF7A59);

  /* شبكة المخطط الهندسي */
  --grid: #DCE4F3;

  /* ظلال */
  --shadow-sm:0 1px 2px rgba(20,28,49,.05), 0 2px 8px rgba(20,28,49,.04);
  --shadow-md:0 8px 24px rgba(20,28,49,.08), 0 2px 6px rgba(20,28,49,.05);
  --shadow-lg:0 24px 60px rgba(48,42,120,.14), 0 6px 18px rgba(20,28,49,.06);

  --radius:18px;
  --radius-sm:12px;
  --radius-lg:26px;
  --maxw:1180px;

  --f-display:"Readex Pro", system-ui, sans-serif;
  --f-body:"IBM Plex Sans Arabic", system-ui, sans-serif;
  --f-mono:"IBM Plex Mono", ui-monospace, monospace;
}

*,*::before,*::after{ box-sizing:border-box; }

html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }

body{
  margin:0;
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.75;
  font-size:17px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

/* خلفية مخطط هندسي خفيفة جدًا */
body::before{
  content:"";
  position:fixed; inset:0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:44px 44px;
  opacity:.35;
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 70%);
          mask-image:radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 70%);
  pointer-events:none; z-index:0;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }

.container{ width:100%; max-width:var(--maxw); margin-inline:auto; padding-inline:24px; position:relative; z-index:1; }

/* ---------- تايبوغرافيا ---------- */
h1,h2,h3,h4{ font-family:var(--f-display); font-weight:700; line-height:1.2; margin:0 0 .5em; letter-spacing:-.01em; }
h1{ font-size:clamp(2.1rem, 5vw, 3.7rem); }
h2{ font-size:clamp(1.7rem, 3.4vw, 2.6rem); }
h3{ font-size:clamp(1.2rem, 2vw, 1.5rem); }
p{ margin:0 0 1.1em; color:var(--ink-soft); }
strong{ color:var(--ink); font-weight:600; }

.eyebrow{
  font-family:var(--f-mono);
  font-size:.78rem; font-weight:500;
  letter-spacing:.18em; text-transform:uppercase;
  color:var(--indigo);
  display:inline-flex; align-items:center; gap:.55rem;
  margin-bottom:1rem;
}
.eyebrow::before{
  content:""; width:26px; height:2px; border-radius:2px;
  background:var(--spine-h);
}
.lead{ font-size:1.15rem; color:var(--ink-soft); max-width:62ch; }

.grad-text{
  background:var(--spine-h);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}

/* ---------- أزرار ---------- */
.btn{
  --bg:var(--indigo);
  display:inline-flex; align-items:center; gap:.5rem;
  font-family:var(--f-display); font-weight:600; font-size:1rem;
  padding:.85rem 1.5rem; border-radius:999px;
  border:1px solid transparent; cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .2s ease;
  white-space:nowrap;
}
.btn-primary{ background:var(--indigo); color:#fff; box-shadow:0 8px 22px rgba(67,56,202,.28); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 14px 30px rgba(67,56,202,.36); }
.btn-ghost{ background:var(--card); color:var(--ink); border-color:var(--line-strong); box-shadow:var(--shadow-sm); }
.btn-ghost:hover{ transform:translateY(-2px); border-color:var(--indigo); color:var(--indigo); }
.btn-warm{ background:linear-gradient(120deg,var(--rose),var(--coral)); color:#fff; box-shadow:0 8px 22px rgba(232,86,122,.3); }
.btn-warm:hover{ transform:translateY(-2px); box-shadow:0 14px 30px rgba(232,86,122,.4); }
.btn .arrow{ transition:transform .2s ease; }
.btn:hover .arrow{ transform:translateX(-4px); }

/* ---------- شريط التنقّل ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  background:rgba(243,246,252,.82);
  backdrop-filter:saturate(160%) blur(14px);
  -webkit-backdrop-filter:saturate(160%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{ display:flex; align-items:center; gap:24px; height:70px; }
.brand{ display:flex; align-items:center; gap:.65rem; font-family:var(--f-display); font-weight:700; font-size:1.18rem; }
.brand:hover .mark{ transform:rotate(-90deg); }
.mark{
  width:34px; height:34px; border-radius:10px;
  background:var(--spine-h);
  position:relative; transition:transform .5s cubic-bezier(.6,.1,.2,1);
  box-shadow:0 4px 12px rgba(124,92,255,.35);
}
.mark::after{
  content:""; position:absolute; inset:8px;
  border-radius:50%; border:2.5px solid #fff;
  border-inline-end-color:transparent;
}
.brand small{ display:block; font-family:var(--f-mono); font-size:.62rem; color:var(--ink-faint); letter-spacing:.14em; font-weight:400; }

.nav-links{ display:flex; align-items:center; gap:4px; margin-inline-start:auto; list-style:none; margin-block:0; padding:0; }
.nav-links a{
  font-size:.95rem; color:var(--ink-soft); font-weight:500;
  padding:.5rem .8rem; border-radius:10px; transition:.16s;
}
.nav-links a:hover{ color:var(--ink); background:var(--paper-tint); }
.nav-links a.active{ color:var(--indigo); background:var(--paper-tint); }
.nav-cta{ display:flex; align-items:center; gap:10px; }

.nav-toggle{ display:none; background:none; border:1px solid var(--line-strong); border-radius:10px; width:44px; height:44px; cursor:pointer; }
.nav-toggle span{ display:block; width:20px; height:2px; background:var(--ink); margin:4px auto; border-radius:2px; transition:.2s; }

/* ---------- أقسام ---------- */
.section{ padding:96px 0; position:relative; }
.section.tight{ padding:64px 0; }
.section-head{ max-width:64ch; margin-bottom:56px; }
.section-head.center{ margin-inline:auto; text-align:center; }
.section-head.center .eyebrow{ }

/* ---------- التوقيع: خط دورة الحياة ---------- */
.spine{ position:relative; padding:38px 0 8px; }
.spine-track{
  position:absolute; inset-inline:2%; top:52px; height:5px; border-radius:5px;
  background:var(--spine);
  transform-origin:right center;
  box-shadow:0 2px 18px rgba(124,92,255,.35);
}
.js-draw .spine-track{ transform:scaleX(0); transition:transform 1.2s cubic-bezier(.6,.05,.2,1) .15s; }
.js-draw.in .spine-track{ transform:scaleX(1); }
.spine-nodes{
  display:flex; justify-content:space-between; gap:8px;
  list-style:none; margin:0; padding:0; position:relative;
}
.spine-nodes li{ flex:1; text-align:center; position:relative; }
.spine-nodes .dot{
  width:20px; height:20px; border-radius:50%;
  background:var(--card); border:4px solid var(--c);
  margin:24px auto 12px; position:relative; z-index:2;
  box-shadow:0 4px 10px rgba(20,28,49,.12);
  transition:transform .2s ease;
}
.js-draw .spine-nodes .dot{ transform:scale(0); transition:transform .4s cubic-bezier(.5,1.6,.4,1); }
.js-draw.in .spine-nodes li:nth-child(1) .dot{ transition-delay:.35s; }
.js-draw.in .spine-nodes li:nth-child(2) .dot{ transition-delay:.5s; }
.js-draw.in .spine-nodes li:nth-child(3) .dot{ transition-delay:.65s; }
.js-draw.in .spine-nodes li:nth-child(4) .dot{ transition-delay:.8s; }
.js-draw.in .spine-nodes li:nth-child(5) .dot{ transition-delay:.95s; }
.js-draw.in .spine-nodes li:nth-child(6) .dot{ transition-delay:1.1s; }
.js-draw.in .spine-nodes li:nth-child(7) .dot{ transition-delay:1.25s; }
.js-draw.in .spine-nodes .dot{ transform:scale(1); }
.spine-nodes li:hover .dot{ transform:scale(1.25); }
.spine-nodes .stage-num{ font-family:var(--f-mono); font-size:.7rem; color:var(--ink-faint); display:block; }
.spine-nodes .stage-name{ font-family:var(--f-display); font-weight:600; font-size:.98rem; color:var(--ink); display:block; }
.spine-nodes .stage-desc{ font-size:.78rem; color:var(--ink-faint); display:block; margin-top:2px; }

/* شريط رفيع كفاصل */
.spine-rule{ height:4px; border-radius:4px; background:var(--spine); opacity:.9; }

/* ---------- بطاقات ---------- */
.grid{ display:grid; gap:22px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }

.card{
  background:var(--card); border:1px solid var(--line);
  border-radius:var(--radius); padding:28px;
  box-shadow:var(--shadow-sm); transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  position:relative; overflow:hidden;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-color:var(--line-strong); }
.card h3{ margin-bottom:.4em; }
.card p:last-child{ margin-bottom:0; }

/* شريط لوني علوي للبطاقة */
.card.accent::before{
  content:""; position:absolute; inset-block-start:0; inset-inline:0; height:4px;
  background:var(--c, var(--spine-h));
}

.chip{
  width:52px; height:52px; border-radius:14px;
  display:grid; place-items:center; margin-bottom:18px;
  background:color-mix(in srgb, var(--c,var(--indigo)) 14%, #fff);
  color:var(--c,var(--indigo));
  border:1px solid color-mix(in srgb, var(--c,var(--indigo)) 26%, #fff);
}
.chip svg{ width:26px; height:26px; }

/* شارات */
.badge{
  display:inline-flex; align-items:center; gap:.4rem;
  font-family:var(--f-mono); font-size:.72rem; font-weight:500;
  padding:.32rem .7rem; border-radius:999px;
  background:var(--paper-tint); color:var(--indigo);
  border:1px solid var(--line);
}
.badge.warm{ background:#FFF0EA; color:#D9542F; border-color:#FBD8C9; }
.badge.ok{ background:#E7F8F1; color:#0a8f63; border-color:#C4EEDD; }

.tag{
  font-family:var(--f-mono); font-size:.72rem;
  color:var(--ink-faint); border:1px dashed var(--line-strong);
  padding:.15rem .5rem; border-radius:6px; display:inline-block;
}

/* ---------- هيرو ---------- */
.hero{ padding:72px 0 40px; position:relative; }
.hero-badges{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:26px; }
.hero h1{ margin-bottom:.4em; }
.hero .lead{ font-size:1.22rem; margin-bottom:32px; }
.hero-cta{ display:flex; flex-wrap:wrap; gap:14px; align-items:center; }
.hero-note{ font-family:var(--f-mono); font-size:.8rem; color:var(--ink-faint); margin-top:18px; }

/* شريط شعارات القطاعات */
.marquee{ overflow:hidden; border-block:1px solid var(--line); background:var(--card-2); padding:18px 0; }
.marquee-track{ display:flex; gap:44px; width:max-content; animation:slide 34s linear infinite; }
.marquee:hover .marquee-track{ animation-play-state:paused; }
.marquee span{ font-family:var(--f-display); font-weight:600; color:var(--ink-faint); font-size:1.05rem; white-space:nowrap; }
@keyframes slide{ from{ transform:translateX(0); } to{ transform:translateX(50%); } }

/* ---------- لوحة معلومات وهمية ---------- */
.dash{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg); padding:22px; position:relative; overflow:hidden;
}
.dash-top{ display:flex; align-items:center; gap:8px; margin-bottom:18px; }
.dash-top .dots{ display:flex; gap:6px; }
.dash-top .dots i{ width:11px; height:11px; border-radius:50%; display:block; }
.dash-title{ font-family:var(--f-mono); font-size:.78rem; color:var(--ink-faint); margin-inline-start:auto; }
.kpi-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:16px; }
.kpi{ background:var(--paper); border:1px solid var(--line); border-radius:14px; padding:14px; }
.kpi .n{ font-family:var(--f-mono); font-weight:500; font-size:1.7rem; color:var(--ink); line-height:1; }
.kpi .l{ font-size:.78rem; color:var(--ink-faint); margin-top:6px; }
.kpi .n.up{ color:var(--emerald); }
.kpi .n.warn{ color:var(--coral); }

.rows{ display:flex; flex-direction:column; gap:8px; }
.row{
  display:grid; grid-template-columns:auto 1fr auto; align-items:center; gap:12px;
  background:var(--paper); border:1px solid var(--line); border-radius:12px; padding:10px 14px;
}
.row .rv{ font-family:var(--f-mono); font-size:.78rem; color:var(--indigo); }
.row .rt{ font-size:.9rem; color:var(--ink); font-weight:500; }
.pill{ font-family:var(--f-mono); font-size:.7rem; padding:.2rem .55rem; border-radius:999px; }
.pill.ok{ background:#E7F8F1; color:#0a8f63; }
.pill.pend{ background:#FFF6E5; color:#B7791F; }
.pill.rev{ background:#EEEBFF; color:#5B45D6; }

/* ---------- شجرة BOM ---------- */
.tree{ font-family:var(--f-mono); font-size:.92rem; }
.tree ul{ list-style:none; margin:0; padding-inline-start:22px; border-inline-start:1.5px dashed var(--line-strong); }
.tree > ul{ border:0; padding-inline-start:0; }
.tree li{ position:relative; padding:6px 0; }
.tree li ul li::before{
  content:""; position:absolute; inset-block-start:18px; inset-inline-start:-22px;
  width:16px; height:1.5px; background:var(--line-strong); border-radius:2px;
}
.tree .node{ display:inline-flex; align-items:center; gap:10px; background:var(--card); border:1px solid var(--line); border-radius:10px; padding:7px 12px; box-shadow:var(--shadow-sm); }
.tree .node .code{ color:var(--indigo); }
.tree .node .qty{ color:var(--ink-faint); font-size:.8rem; }
.tree .node.root{ background:var(--ink); color:#fff; border-color:var(--ink); }
.tree .node.root .code{ color:#c7b9ff; }
.tree .node.alt{ border-style:dashed; }

/* ---------- خطوات مرقّمة (تسلسل حقيقي) ---------- */
.steps{ counter-reset:st; display:grid; gap:20px; }
.step{ display:grid; grid-template-columns:auto 1fr; gap:20px; align-items:start; }
.step .idx{
  counter-increment:st; font-family:var(--f-mono); font-weight:500;
  width:54px; height:54px; border-radius:14px; display:grid; place-items:center;
  background:var(--card); border:1px solid var(--line); color:var(--indigo); font-size:1.1rem;
  box-shadow:var(--shadow-sm); position:relative;
}
.step .idx::before{ content:"0" counter(st); }
.step h3{ margin-bottom:.25em; }
.step p{ margin:0; }

/* ---------- جدول مقارنة ---------- */
.table-wrap{ overflow-x:auto; border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow-sm); background:var(--card); }
table.cmp{ width:100%; border-collapse:collapse; min-width:620px; }
table.cmp th, table.cmp td{ padding:16px 18px; text-align:right; border-bottom:1px solid var(--line); }
table.cmp thead th{ font-family:var(--f-display); font-size:1rem; background:var(--paper-tint); color:var(--ink); }
table.cmp thead th:first-child{ border-start-start-radius:var(--radius); }
table.cmp tbody th{ font-weight:600; color:var(--ink); font-family:var(--f-body); }
table.cmp td{ color:var(--ink-soft); font-size:.95rem; }
table.cmp .yes{ color:var(--emerald); font-weight:600; }
table.cmp .no{ color:var(--ink-faint); }
table.cmp tbody tr:last-child td, table.cmp tbody tr:last-child th{ border-bottom:0; }
.col-plm{ background:color-mix(in srgb,var(--indigo) 6%,#fff); }

/* ---------- FAQ ---------- */
.faq{ display:grid; gap:14px; max-width:820px; margin-inline:auto; }
.faq details{
  background:var(--card); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:4px 22px; box-shadow:var(--shadow-sm); transition:border-color .2s;
}
.faq details[open]{ border-color:var(--line-strong); box-shadow:var(--shadow-md); }
.faq summary{
  cursor:pointer; list-style:none; padding:18px 0; font-family:var(--f-display);
  font-weight:600; font-size:1.08rem; color:var(--ink);
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.faq summary::-webkit-details-marker{ display:none; }
.faq summary .ic{ flex:none; width:28px; height:28px; border-radius:8px; background:var(--paper-tint); color:var(--indigo); display:grid; place-items:center; font-weight:700; transition:.2s; font-family:var(--f-mono); }
.faq details[open] summary .ic{ background:var(--indigo); color:#fff; transform:rotate(45deg); }
.faq details p{ margin:0 0 18px; }

/* ---------- شريط CTA ---------- */
.cta-band{
  border-radius:var(--radius-lg); padding:56px 44px; position:relative; overflow:hidden;
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(124,92,255,.16), transparent 55%),
    radial-gradient(120% 120% at 0% 100%, rgba(255,122,89,.14), transparent 55%),
    var(--ink);
  color:#fff; text-align:center; box-shadow:var(--shadow-lg);
}
.cta-band::after{
  content:""; position:absolute; inset-block-end:0; inset-inline:0; height:5px; background:var(--spine-h);
}
.cta-band h2{ color:#fff; }
.cta-band p{ color:#C6CEE4; max-width:56ch; margin-inline:auto; }
.cta-band .btn-ghost{ background:transparent; color:#fff; border-color:rgba(255,255,255,.3); }
.cta-band .btn-ghost:hover{ border-color:#fff; color:#fff; }

/* ---------- نموذج ---------- */
.form{ display:grid; gap:18px; }
.field{ display:grid; gap:7px; }
.field label{ font-weight:600; font-size:.92rem; color:var(--ink); }
.field .hint{ font-size:.8rem; color:var(--ink-faint); font-weight:400; }
.field input, .field select, .field textarea{
  font-family:var(--f-body); font-size:1rem; color:var(--ink);
  background:var(--card); border:1px solid var(--line-strong); border-radius:12px;
  padding:.85rem 1rem; transition:border-color .16s, box-shadow .16s; width:100%;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color:var(--indigo); box-shadow:0 0 0 4px rgba(67,56,202,.12);
}
.field textarea{ resize:vertical; min-height:120px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-note{ font-size:.82rem; color:var(--ink-faint); }
.form-ok{ background:#E7F8F1; border:1px solid #C4EEDD; color:#0a8f63; padding:14px 18px; border-radius:12px; font-weight:600; display:none; }
.form-ok.show{ display:block; }

/* ---------- اقتباس / إحصائية ---------- */
.stat-strip{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.stat{ text-align:center; }
.stat .n{ font-family:var(--f-mono); font-weight:500; font-size:clamp(2rem,4vw,3rem); background:var(--spine-h); -webkit-background-clip:text; background-clip:text; color:transparent; line-height:1; }
.stat .l{ color:var(--ink-soft); font-size:.92rem; margin-top:8px; }

/* ---------- تذييل ---------- */
.footer{ background:var(--card); border-top:1px solid var(--line); padding:64px 0 30px; margin-top:40px; position:relative; }
.footer::before{ content:""; position:absolute; inset-block-start:-1px; inset-inline:0; height:3px; background:var(--spine-h); opacity:.85; }
.foot-grid{ display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:40px; margin-bottom:40px; }
.footer h4{ font-family:var(--f-mono); font-size:.78rem; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-faint); font-weight:500; margin-bottom:16px; }
.footer ul{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.footer ul a{ color:var(--ink-soft); font-size:.94rem; }
.footer ul a:hover{ color:var(--indigo); }
.footer .brand{ margin-bottom:14px; }
.foot-about{ color:var(--ink-soft); font-size:.94rem; max-width:34ch; }
.foot-bottom{ border-top:1px solid var(--line); padding-top:22px; display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; align-items:center; }
.foot-bottom p{ margin:0; font-size:.85rem; color:var(--ink-faint); font-family:var(--f-mono); }

/* ---------- الكشف بالتمرير ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in{ opacity:1; transform:none; }
.reveal.d1{ transition-delay:.08s; }
.reveal.d2{ transition-delay:.16s; }
.reveal.d3{ transition-delay:.24s; }
.reveal.d4{ transition-delay:.32s; }

/* ---------- مساعدات ---------- */
.center{ text-align:center; }
.mt-s{ margin-top:14px; } .mt-m{ margin-top:28px; } .mt-l{ margin-top:48px; }
.split{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.split.wide-media{ grid-template-columns:.9fr 1.1fr; }
.breadcrumb{ font-family:var(--f-mono); font-size:.78rem; color:var(--ink-faint); padding:20px 0 0; }
.breadcrumb a:hover{ color:var(--indigo); }
.breadcrumb span{ margin-inline:6px; }
.list-check{ list-style:none; padding:0; margin:0 0 1.1em; display:grid; gap:12px; }
.list-check li{ display:grid; grid-template-columns:auto 1fr; gap:12px; align-items:start; color:var(--ink-soft); }
.list-check li::before{
  content:"✓"; color:var(--emerald); font-weight:700; margin-top:2px;
  width:24px; height:24px; border-radius:7px; background:#E7F8F1; display:grid; place-items:center; font-size:.85rem;
}

/* ---------- استجابة ---------- */
@media (max-width:960px){
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .split, .split.wide-media{ grid-template-columns:1fr; gap:36px; }
  .stat-strip{ grid-template-columns:repeat(2,1fr); gap:28px; }
  .foot-grid{ grid-template-columns:1fr 1fr; gap:32px; }
}
@media (max-width:760px){
  body{ font-size:16px; }
  .section{ padding:68px 0; }
  .nav-links, .nav-cta .btn-ghost{ display:none; }
  .nav-toggle{ display:block; }
  .nav.open .nav-links{
    display:flex; position:absolute; inset-block-start:70px; inset-inline:0;
    flex-direction:column; align-items:stretch; gap:4px;
    background:var(--card); border-bottom:1px solid var(--line); padding:14px 24px 22px;
    box-shadow:var(--shadow-md);
  }
  .nav.open .nav-links a{ padding:.8rem 1rem; }
  .grid-2, .grid-3, .grid-4{ grid-template-columns:1fr; }
  .kpi-row{ grid-template-columns:repeat(3,1fr); }
  .form-row{ grid-template-columns:1fr; }
  .spine-nodes .stage-desc{ display:none; }
  .spine-nodes .stage-name{ font-size:.78rem; }
  .cta-band{ padding:40px 24px; }
  .cta-band .hero-cta{ justify-content:center; }
}
@media (max-width:440px){
  .stat-strip{ grid-template-columns:1fr; }
  .foot-grid{ grid-template-columns:1fr; }
  .spine-nodes .stage-name{ font-size:.66rem; }
}

/* ---------- تفضيلات ---------- */
:focus-visible{ outline:3px solid var(--violet); outline-offset:2px; border-radius:6px; }

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
  .reveal{ opacity:1; transform:none; }
  .js-draw .spine-track{ transform:scaleX(1); }
  .js-draw .spine-nodes .dot{ transform:scale(1); }
}