:root{
  --navy-900:#070d1f;
  --navy-800:#0a1128;
  --navy-700:#0d1b2e;
  --navy-600:#122641;
  --navy-500:#1a3354;
  --line:rgba(212,175,55,.18);
  --gold:#d4af37;
  --gold-2:#f0c75e;
  --ink:#e8edf6;
  --ink-dim:#93a3bd;
  --red:#ff5a5a;
  --green:#3ddc84;
  --blue:#4a9eff;
  --font:'Inter','Cairo',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:
    radial-gradient(1200px 600px at 80% -10%,rgba(212,175,55,.07),transparent 60%),
    radial-gradient(900px 500px at -10% 40%,rgba(74,158,255,.06),transparent 60%),
    var(--navy-800);
  color:var(--ink);
  min-height:100vh;
}
body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(rgba(212,175,55,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(212,175,55,.045) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 75%);
}
[dir="rtl"] body,[dir="rtl"]{font-family:'Cairo','Inter',sans-serif}

/* ---------- top bar ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;z-index:50;height:64px;
  display:flex;align-items:center;gap:14px;padding:0 20px;
  background:rgba(10,17,40,.88);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:10px;background:none;border:0;cursor:pointer;color:inherit}
.brand-icon{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(145deg,var(--navy-600),var(--navy-800));border:1px solid rgba(212,175,55,.35)}
.brand-icon svg{width:24px;height:24px;color:var(--gold)}
.brand-title{font-weight:800;color:var(--gold);font-size:14px;letter-spacing:.5px}
.brand-sub{font-size:11px;color:var(--ink-dim)}
.nav{display:flex;gap:2px;margin-inline-start:auto;flex-wrap:wrap}
.nav button{
  background:none;border:0;color:var(--ink-dim);font:inherit;font-size:13.5px;font-weight:600;
  padding:9px 13px;border-radius:9px;cursor:pointer;position:relative;transition:.18s;
}
.nav button:hover{color:var(--gold-2)}
.nav button.active{color:var(--gold)}
.nav button.active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--gold)}
.lang-btn{
  border:1px solid rgba(212,175,55,.3);background:rgba(212,175,55,.06);color:var(--gold);
  font:inherit;font-size:13px;font-weight:700;padding:7px 14px;border-radius:9px;cursor:pointer;transition:.18s;
}
.lang-btn:hover{background:rgba(212,175,55,.14)}

main{position:relative;z-index:1;padding-top:64px}
.section{display:none;animation:fadeUp .35s ease}
.section.active{display:block}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.container{max-width:1200px;margin:0 auto;padding:38px 22px 70px}

/* ---------- hero ---------- */
.hero{max-width:1280px;margin:0 auto;padding:56px 24px 30px;display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--gold);border:1px solid var(--line);background:rgba(212,175,55,.05);padding:6px 14px;border-radius:999px;margin-bottom:18px}
.pulse-dot{width:8px;height:8px;border-radius:50%;background:var(--gold);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-size:clamp(28px,3.6vw,46px);font-weight:800;line-height:1.15;margin-bottom:16px}
.hero h1 em{font-style:normal;color:var(--gold);text-shadow:0 0 30px rgba(212,175,55,.35)}
.hero-copy p{color:var(--ink-dim);font-size:15.5px;line-height:1.75;margin-bottom:24px;max-width:56ch}
.hero-cta{display:flex;gap:12px;margin-bottom:30px;flex-wrap:wrap}
.btn{font:inherit;font-weight:700;font-size:14.5px;padding:12px 22px;border-radius:11px;cursor:pointer;transition:.18s;border:1px solid transparent}
.btn.gold{background:linear-gradient(135deg,var(--gold),#b8912c);color:#12172b}
.btn.gold:hover{filter:brightness(1.12);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:var(--gold);border-color:rgba(212,175,55,.4)}
.btn.ghost:hover{background:rgba(212,175,55,.08)}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap}
.stat b{display:block;font-size:22px;color:var(--gold)}
.stat span{font-size:12px;color:var(--ink-dim)}
.hero-visual{min-width:0}
.plan-frame{position:relative;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--navy-700);box-shadow:0 30px 80px rgba(0,0,0,.5)}
.plan-frame img{display:block;width:100%;height:auto}
.scanline{position:absolute;left:0;right:0;height:90px;top:-90px;background:linear-gradient(180deg,transparent,rgba(212,175,55,.14),transparent);animation:scan 5s linear infinite}
@keyframes scan{to{top:110%}}
.plan-tag{position:absolute;bottom:10px;inset-inline-start:12px;font-size:11.5px;color:var(--gold-2);background:rgba(7,13,31,.75);border:1px solid var(--line);padding:5px 10px;border-radius:8px;backdrop-filter:blur(4px)}

/* ---------- cards ---------- */
.sec-title{font-size:26px;font-weight:800;margin:46px 0 8px}
.sec-title2{font-size:20px;font-weight:800;margin:40px 0 8px}
.sec-sub{color:var(--ink-dim);font-size:14.5px;line-height:1.7;max-width:80ch;margin-bottom:24px}
.cards4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cards3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{
  background:linear-gradient(160deg,rgba(18,38,65,.55),rgba(10,17,40,.65));
  border:1px solid var(--line);border-radius:15px;padding:22px;transition:.2s;
}
.card:hover{transform:translateY(-3px);border-color:rgba(212,175,55,.4)}
.card h3{font-size:16px;margin-bottom:8px}
.card p{color:var(--ink-dim);font-size:13.5px;line-height:1.65}
.card-num{font-size:12px;font-weight:800;color:var(--gold);opacity:.8;margin-bottom:10px;letter-spacing:2px}
.level-card{border-top:3px solid var(--lvl)}
.level-card .lvl-dot{width:12px;height:12px;border-radius:4px;background:var(--lvl);display:inline-block;margin-inline-end:8px;vertical-align:-1px}
.level-card .lvl-specs{display:flex;gap:14px;margin:12px 0 10px}
.level-card .lvl-specs b{display:block;font-size:17px;color:var(--gold-2)}
.level-card .lvl-specs span{font-size:11px;color:var(--ink-dim)}

/* ---------- designer ---------- */
.designer-wrap{display:grid;grid-template-columns:1fr 330px;gap:0;height:calc(100vh - 64px)}
.designer-canvas-col{display:flex;flex-direction:column;min-width:0}
.toolbar{
  display:flex;align-items:center;gap:8px;padding:9px 14px;flex-wrap:wrap;
  border-bottom:1px solid var(--line);background:rgba(13,27,46,.7)
}
.tb-label{font-size:12.5px;color:var(--ink-dim);font-weight:600}
.tool-btn{
  display:inline-flex;align-items:center;gap:7px;font:inherit;font-size:12.5px;font-weight:600;
  color:var(--ink);background:rgba(18,38,65,.6);border:1px solid rgba(147,163,189,.2);
  padding:7px 12px;border-radius:9px;cursor:pointer;transition:.15s;
}
.tool-btn:hover{border-color:rgba(212,175,55,.5)}
.tool-btn.active{background:rgba(212,175,55,.15);border-color:var(--gold);color:var(--gold-2)}
.cam-swatch{width:11px;height:11px;border-radius:50%}
.cam-swatch.dome{background:var(--green)}
.cam-swatch.bullet{background:var(--blue)}
.cam-swatch.ptz{background:var(--red)}
.tb-sep{width:1px;height:22px;background:var(--line)}
.tb-hint{font-size:11px;color:var(--ink-dim);margin-inline-start:auto}
.canvas-holder{position:relative;flex:1;min-height:0;background:var(--navy-700)}
#planCanvas{position:absolute;inset:0;width:100%;height:100%;cursor:grab;touch-action:none}
#planCanvas.placing{cursor:crosshair}
#planCanvas.dragging{cursor:grabbing}
.canvas-loading{position:absolute;inset:0;display:grid;place-items:center;color:var(--gold);font-size:14px;background:var(--navy-700)}

.designer-side{
  border-inline-start:1px solid var(--line);background:rgba(10,17,40,.75);
  overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:16px;
}
.side-block{border:1px solid var(--line);border-radius:13px;padding:15px;background:rgba(13,27,46,.5)}
.side-block h3{font-size:13.5px;color:var(--gold);margin-bottom:11px;letter-spacing:.3px}
.muted{color:var(--ink-dim);font-size:12.5px;line-height:1.6}
.sel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px;font-weight:700;font-size:13.5px}
.mini-btn{font:inherit;font-size:11.5px;font-weight:700;padding:5px 10px;border-radius:7px;border:1px solid;cursor:pointer;background:transparent}
.mini-btn.danger{color:var(--red);border-color:rgba(255,90,90,.4)}
.mini-btn.danger:hover{background:rgba(255,90,90,.12)}
#selCtrls label{display:grid;grid-template-columns:86px 1fr 44px;align-items:center;gap:8px;font-size:12px;color:var(--ink-dim);margin-bottom:10px}
#selCtrls b{font-size:11.5px;color:var(--gold-2);text-align:end}
#selCtrls input[type=range]{width:100%;accent-color:var(--gold)}
#selCtrls select{font:inherit;font-size:12px;background:var(--navy-600);color:var(--ink);border:1px solid rgba(147,163,189,.25);border-radius:7px;padding:6px;grid-column:2/4}
.comp-score{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.comp-bar{flex:1;height:8px;border-radius:6px;background:rgba(147,163,189,.15);overflow:hidden}
#compFill{height:100%;width:0%;border-radius:6px;background:linear-gradient(90deg,#b8912c,var(--gold-2));transition:width .4s}
#compPct{font-size:13px;color:var(--gold-2)}
.comp-list{display:flex;flex-direction:column;gap:5px;max-height:300px;overflow-y:auto}
.comp-item{display:flex;align-items:center;gap:8px;font-size:12px;padding:6px 8px;border-radius:8px;background:rgba(18,38,65,.4)}
.comp-item .st{font-size:13px}
.comp-item.ok .st{color:var(--green)}
.comp-item.bad .st{color:var(--red)}
.comp-item .nm{flex:1;color:var(--ink)}
.comp-item .lv{font-size:10px;font-weight:700;padding:2px 7px;border-radius:99px;border:1px solid}
.bom{font-size:12.5px}
.bom-row{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed rgba(147,163,189,.15)}
.bom-row:last-child{border-bottom:0}
.bom-row b{color:var(--gold-2)}
.bom-row.total{margin-top:4px;font-weight:800}
.bom-row.total b{color:var(--gold)}

/* ---------- inspector ---------- */
.ins-grid{display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:16px}
.kv{width:100%;border-collapse:collapse;font-size:13px}
.kv td{padding:7px 4px;border-bottom:1px dashed rgba(147,163,189,.14);vertical-align:top}
.kv td:first-child{color:var(--ink-dim);white-space:nowrap;padding-inline-end:14px}
.kv td:last-child{color:var(--ink);text-align:end}
.chips{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.chip{font-size:11.5px;font-weight:700;color:var(--gold-2);border:1px solid rgba(212,175,55,.35);background:rgba(212,175,55,.07);border-radius:99px;padding:4px 11px}
.req-controls{display:flex;align-items:center;gap:14px;margin-bottom:12px}
.req-controls input{
  font:inherit;font-size:13.5px;color:var(--ink);background:rgba(13,27,46,.7);
  border:1px solid rgba(147,163,189,.25);border-radius:10px;padding:9px 14px;width:300px;max-width:100%;
}
.req-controls input:focus{outline:none;border-color:var(--gold)}
.table-wrap{border:1px solid var(--line);border-radius:13px;overflow:auto;max-height:480px}
.req-table{width:100%;border-collapse:collapse;font-size:13px}
.req-table th{position:sticky;top:0;background:var(--navy-600);color:var(--gold-2);text-align:start;font-size:12px;padding:10px 14px;z-index:2}
.req-table td{padding:9px 14px;border-top:1px solid rgba(147,163,189,.1)}
.req-table tr:hover td{background:rgba(212,175,55,.04)}
.lvl-chip{font-size:11px;font-weight:700;padding:3px 10px;border-radius:99px;border:1px solid}
.clause{color:var(--ink-dim);font-size:12px}

/* ---------- case study ---------- */
.timeline{position:relative;margin-top:10px}
.timeline::before{content:"";position:absolute;top:0;bottom:0;inset-inline-start:19px;width:2px;background:linear-gradient(180deg,var(--gold),rgba(212,175,55,.1))}
.tl-item{position:relative;padding-inline-start:62px;padding-bottom:38px}
.tl-num{
  position:absolute;inset-inline-start:0;top:0;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;font-weight:800;font-size:14px;color:#12172b;
  background:linear-gradient(135deg,var(--gold),#b8912c);box-shadow:0 0 0 5px rgba(212,175,55,.12);
}
.tl-item h3{font-size:17px;margin-bottom:6px}
.tl-item .tl-tag{display:inline-block;font-size:11px;font-weight:700;color:var(--blue);border:1px solid rgba(74,158,255,.35);border-radius:99px;padding:2px 10px;margin-inline-start:8px;vertical-align:2px}
.tl-item p{color:var(--ink-dim);font-size:13.5px;line-height:1.7;max-width:78ch;margin-bottom:14px}
.tl-item p b{color:var(--gold-2)}
.tl-imgs{display:flex;gap:12px;flex-wrap:wrap}
.tl-imgs img{
  height:170px;width:auto;border-radius:11px;border:1px solid var(--line);cursor:zoom-in;
  transition:.2s;object-fit:cover;
}
.tl-imgs img:hover{transform:scale(1.03);border-color:var(--gold)}

/* ---------- quiz ---------- */
.quiz-container{max-width:800px}
.quiz-box{border:1px solid var(--line);border-radius:16px;background:rgba(13,27,46,.55);padding:26px}
.qz-progress{display:flex;gap:5px;margin-bottom:20px}
.qz-progress i{flex:1;height:5px;border-radius:4px;background:rgba(147,163,189,.18)}
.qz-progress i.done{background:var(--gold)}
.qz-progress i.cur{background:var(--gold-2);box-shadow:0 0 8px rgba(240,199,94,.6)}
.qz-q{font-size:17.5px;font-weight:700;line-height:1.5;margin-bottom:18px}
.qz-opts{display:grid;gap:10px}
.qz-opt{
  font:inherit;font-size:14px;text-align:start;color:var(--ink);cursor:pointer;
  border:1px solid rgba(147,163,189,.22);background:rgba(18,38,65,.45);
  padding:13px 16px;border-radius:11px;transition:.15s;
}
.qz-opt:hover:not(:disabled){border-color:var(--gold)}
.qz-opt.correct{border-color:var(--green);background:rgba(61,220,132,.1)}
.qz-opt.wrong{border-color:var(--red);background:rgba(255,90,90,.1)}
.qz-opt:disabled{cursor:default;opacity:.85}
.qz-expl{margin-top:14px;font-size:13px;line-height:1.65;color:var(--ink-dim);border-inline-start:3px solid var(--gold);padding:8px 14px;background:rgba(212,175,55,.05);border-radius:0 9px 9px 0}
.qz-foot{display:flex;justify-content:space-between;align-items:center;margin-top:20px}
.qz-score{font-size:13px;color:var(--ink-dim)}
.qz-result{text-align:center;padding:20px 0}
.qz-ring{width:150px;height:150px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;font-size:30px;font-weight:800;color:var(--gold-2)}
.qz-result h3{font-size:22px;margin-bottom:8px}
.qz-result p{color:var(--ink-dim);font-size:14px;margin-bottom:20px}

/* ---------- footer / lightbox ---------- */
.footer{
  position:relative;z-index:1;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  padding:20px 24px;border-top:1px solid var(--line);color:var(--ink-dim);font-size:12.5px;
}
.lightbox{
  position:fixed;inset:0;z-index:100;background:rgba(4,8,20,.92);display:none;
  flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:30px;
}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:80vh;border-radius:12px;border:1px solid var(--line)}
.lb-cap{color:var(--ink);font-size:14px}
.lb-close{
  position:absolute;top:18px;inset-inline-end:22px;font-size:18px;color:var(--ink);
  background:rgba(18,38,65,.7);border:1px solid var(--line);border-radius:50%;width:42px;height:42px;cursor:pointer;
}

/* ---------- load-plan modal ---------- */
.modal{
  position:fixed;inset:0;z-index:120;background:rgba(4,8,20,.88);display:none;
  align-items:center;justify-content:center;padding:24px;
}
.modal.open{display:flex}
.modal-card{
  width:min(480px,94vw);background:var(--navy-700,#0d1b2e);border:1px solid var(--line);
  border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:16px;
  box-shadow:0 24px 70px rgba(0,0,0,.55);
}
.modal-card h3{font-size:18px;color:var(--gold-2)}
.lm-busy{display:flex;align-items:center;gap:11px;color:var(--ink);font-size:13.5px}
.spinner{
  width:18px;height:18px;border-radius:50%;flex:none;
  border:2.5px solid rgba(212,175,55,.25);border-top-color:var(--gold);
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.lm-error{color:var(--red);font-size:13.5px;line-height:1.55}
.lm-scale{display:flex;flex-direction:column;gap:7px;margin-top:12px;font-size:13px;color:var(--ink)}
.lm-scale input{
  font:inherit;font-size:15px;font-weight:700;color:var(--gold-2);
  background:rgba(18,38,65,.7);border:1px solid var(--line);border-radius:9px;padding:9px 12px;width:150px;
}
.lm-hint{font-size:12px;margin-top:7px;line-height:1.55}
.lm-actions{display:flex;justify-content:flex-end;gap:10px}
.lm-actions .btn[disabled]{opacity:.45;cursor:not-allowed}
.canvas-holder.dropping::after{
  content:'';position:absolute;inset:8px;border:2px dashed var(--gold);border-radius:12px;pointer-events:none;
}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .hero{grid-template-columns:1fr}
  .cards4{grid-template-columns:repeat(2,1fr)}
  .ins-grid{grid-template-columns:1fr}
  .designer-wrap{grid-template-columns:1fr;height:auto}
  .canvas-holder{height:62vh}
  .designer-side{border-inline-start:0;border-top:1px solid var(--line)}
}
@media (max-width:640px){
  .cards4,.cards3{grid-template-columns:1fr}
  .nav button{padding:8px 8px;font-size:12px}
  .brand-text{display:none}
  .tb-hint{display:none}
}