:root{
    --bg:#0a0b10;
    --bg-2:#0f1119;
    --panel:#13151f;
    --panel-2:#181b27;
    --line: rgba(242,169,59,.14);
    --line-2: rgba(255,255,255,.07);
    --gold:#f2a93b;
    --gold-2:#e0791a;
    --gold-pale:#ffd98a;
    --gold-soft: rgba(242,169,59,.12);
    --ink:#f3f0e8;
    --ink-dim:#9a9ead;
    --ink-dim-2:#6c7080;
    --radius: 18px;
    --maxw: 1180px;
    --ease: cubic-bezier(.19,1,.22,1);
  }

  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:'Vazirmatn', sans-serif;
    line-height:1.75;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{ background:var(--gold); color:#141414; }

  img,svg{display:block; max-width:100%;}
  a{color:inherit; text-decoration:none;}
  ul{list-style:none;}
  button{font-family:inherit; cursor:pointer; border:none; background:none; color:inherit;}

  .en{ font-family:'Space Grotesk', sans-serif; direction:ltr; unicode-bidi:isolate; }

  .wrap{ max-width:var(--maxw); margin:0 auto; padding:0 32px; }

  /* -------- decorative background facet pattern -------- */
  .facet-bg{
    position:fixed; inset:0; z-index:-2;
    background:
      radial-gradient(1100px 620px at 82% -8%, rgba(242,169,59,.16), transparent 60%),
      radial-gradient(900px 500px at 8% 12%, rgba(224,121,26,.10), transparent 55%),
      var(--bg);
  }
  .facet-bg::before{
    content:"";
    position:absolute; inset:0;
    background-image:
      linear-gradient(115deg, transparent 48%, var(--line) 49%, transparent 51%),
      linear-gradient(25deg, transparent 48%, var(--line) 49%, transparent 51%);
    background-size: 260px 260px, 320px 320px;
    opacity:.35;
    mask-image: linear-gradient(to bottom, black, transparent 85%);
  }

  /* -------- scroll reveal -------- */
  .reveal{ opacity:0; transform:translateY(28px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
  .reveal.in{ opacity:1; transform:translateY(0); }

  /* ================= NAV ================= */
  header.nav{
    position:fixed; top:0; inset-inline:0; z-index:100;
    padding:18px 0;
    transition: background .35s ease, padding .35s ease, border-color .35s ease;
    border-bottom:1px solid transparent;
  }
  header.nav.scrolled{
    background:rgba(10,11,16,.78);
    backdrop-filter: blur(14px) saturate(140%);
    padding:12px 0;
    border-color:var(--line);
  }
  .nav-inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; }

  .brand{ display:flex; align-items:center; gap:10px; }
  .brand-mark{ width:34px; height:34px; flex:none; }
  .brand-text{ display:flex; flex-direction:column; line-height:1; }
  .brand-text b{ font-family:'Space Grotesk', sans-serif; font-size:16px; letter-spacing:3px; font-weight:700; color:var(--ink); }
  .brand-text span{ font-size:10px; letter-spacing:2px; color:var(--gold); font-family:'Space Grotesk', sans-serif; margin-top:2px; }

  .nav-links{ display:flex; align-items:center; gap:36px; }
  .nav-links a{
    font-size:14.5px; color:var(--ink-dim); position:relative; padding:6px 0; transition:color .25s;
  }
  .nav-links a::after{
    content:""; position:absolute; right:0; bottom:0; width:0; height:1px; background:var(--gold);
    transition:width .3s var(--ease);
  }
  .nav-links a:hover{ color:var(--ink); }
  .nav-links a:hover::after{ width:100%; }

  .nav-right{ display:flex; align-items:center; gap:18px; }
  .social-mini{ display:flex; gap:10px; }
  .social-mini a{
    width:32px; height:32px; border-radius:50%; display:flex; align-items:center; justify-content:center;
    border:1px solid var(--line-2); color:var(--ink-dim); transition:all .25s;
  }
  .social-mini a:hover{ border-color:var(--gold); color:var(--gold); transform:translateY(-2px); }

  .burger{ display:none; width:38px; height:38px; border:1px solid var(--line-2); border-radius:9px; align-items:center; justify-content:center; }
  .burger span, .burger span::before, .burger span::after{
    content:""; display:block; width:16px; height:2px; background:var(--ink); position:relative; transition:.3s;
  }
  .burger span::before{ position:absolute; top:-5px; }
  .burger span::after{ position:absolute; top:5px; }

  .mobile-menu{
    display:none; position:fixed; inset:0; z-index:99; background:rgba(8,9,13,.98);
    flex-direction:column; align-items:center; justify-content:center; gap:28px;
  }
  .mobile-menu.open{ display:flex; }
  .mobile-menu a{ font-size:22px; color:var(--ink); }

  /* ================= HERO ================= */
  .hero{
    position:relative; min-height:100vh; display:flex; align-items:center;
    padding-top:120px; padding-bottom:100px; overflow:hidden;
    clip-path: polygon(0 0,100% 0,100% 94%, 0 100%);
  }
  .hero-gem{
    position:absolute; left:-140px; top:50%; transform:translateY(-50%);
    width:640px; opacity:.9; pointer-events:none;
    filter: drop-shadow(0 0 60px rgba(242,169,59,.25));
    animation: float 9s ease-in-out infinite;
  }
  @keyframes float{ 0%,100%{ transform:translateY(-50%) rotate(0deg);} 50%{ transform:translateY(calc(-50% - 18px)) rotate(2deg);} }

  .hero-inner{ position:relative; z-index:2; max-width:640px; margin-inline-start:auto; text-align:right; }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px; font-size:12.5px; letter-spacing:1px;
    color:var(--gold-pale); background:var(--gold-soft); border:1px solid var(--line);
    padding:7px 16px; border-radius:99px; margin-bottom:26px;
  }
  .eyebrow .dot{ width:6px; height:6px; border-radius:50%; background:#57e08a; box-shadow:0 0 0 3px rgba(87,224,138,.18); }

  .hero h1{
    font-size:clamp(40px, 6vw, 66px); font-weight:900; line-height:1.15; letter-spacing:-1px;
    background:linear-gradient(95deg,#fff 10%, var(--gold-pale) 55%, var(--gold-2) 90%);
    -webkit-background-clip:text; background-clip:text; color:transparent;
    margin-bottom:20px;
  }
  .hero h1 .en{ display:block; font-size:.32em; letter-spacing:6px; color:var(--ink-dim); -webkit-text-fill-color:var(--ink-dim); margin-top:10px; font-weight:600; }

  .hero p.lead{ font-size:17px; color:var(--ink-dim); max-width:520px; margin-bottom:34px; }

  .hero-cta{ display:flex; align-items:center; gap:18px; flex-wrap:wrap; margin-bottom:52px; }
  .btn{
    display:inline-flex; align-items:center; gap:10px; padding:15px 30px; border-radius:12px;
    font-size:15px; font-weight:700; transition:all .3s var(--ease); white-space:nowrap;
  }
  .btn-gold{
    background:linear-gradient(95deg, var(--gold), var(--gold-2));
    color:#181206; box-shadow:0 12px 30px -10px rgba(242,169,59,.55);
  }
  .btn-gold:hover{ transform:translateY(-3px); box-shadow:0 18px 36px -10px rgba(242,169,59,.7); }
  .btn-ghost{
    border:1px solid var(--line-2); color:var(--ink);
  }
  .btn-ghost:hover{ border-color:var(--gold); color:var(--gold); }

  .hero-stats{ display:flex; gap:34px; }
  .hstat b{ display:block; font-family:'Space Grotesk',sans-serif; font-size:26px; color:var(--ink); }
  .hstat span{ font-size:12.5px; color:var(--ink-dim-2); }

  .side-rail{
    position:fixed; left:26px; top:50%; transform:translateY(-50%); z-index:60;
    display:flex; flex-direction:column; gap:14px;
  }
  .side-rail::after{
    content:""; display:block; width:1px; height:70px; background:linear-gradient(var(--gold), transparent); margin:6px auto 0;
  }
  .side-rail a{
    width:40px; height:40px; border-radius:50%; border:1px solid var(--line-2);
    display:flex; align-items:center; justify-content:center; color:var(--ink-dim);
    transition:all .3s;
    background:rgba(255,255,255,.02);
  }
  .side-rail a:hover{ border-color:var(--gold); color:var(--gold); background:var(--gold-soft); transform:translateX(-4px); }

  .scroll-cue{
    position:absolute; bottom:46px; right:50%; transform:translateX(50%);
    display:flex; flex-direction:column; align-items:center; gap:8px; color:var(--ink-dim-2); font-size:11px; letter-spacing:2px;
  }
  .scroll-cue .line{ width:1px; height:34px; background:linear-gradient(var(--gold), transparent); animation:cue 1.8s infinite; }
  @keyframes cue{ 0%{opacity:.2;} 50%{opacity:1;} 100%{opacity:.2;} }

  /* ================= SECTION shell ================= */
  section{ position:relative; padding:120px 0; }
  .kicker{
    display:flex; align-items:center; gap:12px; margin-bottom:16px; justify-content:flex-end;
  }
  .kicker span{ font-size:12.5px; letter-spacing:3px; color:var(--gold); font-family:'Space Grotesk',sans-serif; font-weight:600; }
  .kicker .rule{ width:44px; height:1px; background:var(--gold); }
  h2.title{ font-size:clamp(28px,4vw,42px); font-weight:800; margin-bottom:18px; text-align:right; }
  p.desc{ color:var(--ink-dim); font-size:16px; max-width:560px; margin-inline-start:auto; text-align:right; }

  /* ================= ABOUT ================= */
  .about{ background:linear-gradient(180deg, transparent, rgba(255,255,255,.015) 20%, transparent 85%); }
  .about-grid{ display:grid; grid-template-columns: .8fr 1.2fr; gap:70px; align-items:center; }
  .about-gem-wrap{ position:relative; display:flex; align-items:center; justify-content:center; }
  .about-gem-wrap svg{ width:100%; max-width:380px; filter:drop-shadow(0 20px 60px rgba(242,169,59,.25)); }
  .orbit-ring{ position:absolute; inset:0; border:1px dashed var(--line); border-radius:50%; animation:spin 40s linear infinite; }
  @keyframes spin{ to{ transform:rotate(360deg);} }

  .about-copy{ text-align:right; }
  .about-copy p{ color:var(--ink-dim); font-size:15.5px; margin-bottom:16px; }
  .about-copy strong{ color:var(--gold-pale); }

  .stat-row{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; margin-top:36px; }
  .stat-card{
    background:var(--panel); border:1px solid var(--line-2); border-radius:14px; padding:20px 16px; text-align:center;
    transition:.3s;
  }
  .stat-card:hover{ border-color:var(--gold); transform:translateY(-4px); }
  .stat-card b{ display:block; font-family:'Space Grotesk',sans-serif; font-size:24px; color:var(--gold-pale); }
  .stat-card span{ font-size:12px; color:var(--ink-dim-2); margin-top:6px; display:block; }

  /* ================= GALLERY ================= */
  .gallery-head{ display:flex; justify-content:space-between; align-items:flex-end; margin-bottom:44px; flex-wrap:wrap; gap:20px; }
  .gallery-track{
    display:grid; grid-auto-flow:column; grid-auto-columns:min(320px, 78vw); gap:22px;
    overflow-x:auto; padding-bottom:20px; scroll-snap-type:x mandatory;
    margin:0 -32px; padding-inline:32px;
  }
  .gallery-track::-webkit-scrollbar{ height:6px; }
  .gallery-track::-webkit-scrollbar-thumb{ background:var(--line); border-radius:10px; }
  .gcard{
    scroll-snap-align:start; border-radius:var(--radius); overflow:hidden; position:relative;
    height:400px; border:1px solid var(--line-2); background:var(--panel);
  }
  .gcard .surface{
    position:absolute; inset:0;
    display:flex; align-items:center; justify-content:center;
    transition:transform .6s var(--ease);
  }
  .gcard:hover .surface{ transform:scale(1.06); }
  .gcard .surface svg{ width:56%; opacity:.85; }
  .gcard .tag{
    position:absolute; bottom:0; inset-inline:0; padding:22px; z-index:2;
    background:linear-gradient(0deg, rgba(6,6,9,.92), transparent 75%);
  }
  .gcard .tag b{ display:block; font-size:16px; margin-bottom:4px; }
  .gcard .tag span{ font-size:12.5px; color:var(--ink-dim); }
  .g1 .surface{ background:radial-gradient(circle at 30% 30%, #3a3320, #17140c); }
  .g2 .surface{ background:radial-gradient(circle at 70% 30%, #1c2a3a, #0d1218); }
  .g3 .surface{ background:radial-gradient(circle at 40% 70%, #33251a, #14100a); }
  .g4 .surface{ background:radial-gradient(circle at 60% 40%, #21283a, #0e1016); }
  .g5 .surface{ background:radial-gradient(circle at 50% 50%, #3a2c17, #14110a); }

  /* ================= INSTALL ================= */
  .install{ background:var(--bg-2); }
  .tabs{ display:inline-flex; border:1px solid var(--line-2); border-radius:12px; padding:5px; margin-bottom:50px; }
  .tab-btn{ padding:11px 26px; border-radius:9px; font-size:14px; color:var(--ink-dim); transition:.3s; }
  .tab-btn.active{ background:linear-gradient(95deg,var(--gold),var(--gold-2)); color:#181206; font-weight:700; }

  .steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:26px; position:relative; }
  .steps::before{
    content:""; position:absolute; top:34px; inset-inline:8%; height:1px;
    background:repeating-linear-gradient(to left, var(--line-2) 0 8px, transparent 8px 16px);
    z-index:0;
  }
  .step{
    background:var(--panel); border:1px solid var(--line-2); border-radius:var(--radius); padding:30px 26px;
    position:relative; z-index:1; text-align:right; transition:.3s;
  }
  .step:hover{ border-color:var(--gold); transform:translateY(-6px); }
  .step .num{
    width:44px; height:44px; border-radius:50%; background:var(--gold-soft); border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; font-family:'Space Grotesk',sans-serif; font-weight:700;
    color:var(--gold); margin-bottom:20px; font-size:16px;
  }
  .step h3{ font-size:17px; margin-bottom:10px; }
  .step p{ font-size:14px; color:var(--ink-dim); margin-bottom:16px; }
  .step .mini-btn{
    display:inline-flex; align-items:center; gap:8px; font-size:13px; padding:9px 18px; border-radius:9px;
    background:var(--panel-2); border:1px solid var(--line-2); color:var(--ink); transition:.3s;
  }
  .step .mini-btn:hover{ border-color:var(--gold); color:var(--gold); }

  .ip-box{
    margin-top:16px; display:flex; align-items:center; justify-content:space-between; gap:10px;
    background:var(--bg); border:1px dashed var(--line); border-radius:9px; padding:10px 14px;
  }
  .ip-box .en{ color:var(--gold-pale); font-weight:600; font-size:13.5px; }
  .copy-btn{ color:var(--ink-dim); font-size:12px; display:flex; align-items:center; gap:5px; }
  .copy-btn:hover{ color:var(--gold); }

  /* ================= UPDATES ================= */
  .updates-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:22px; }
  .ucard{
    background:var(--panel); border:1px solid var(--line-2); border-radius:var(--radius); padding:28px 24px;
    text-align:right; transition:.35s var(--ease); position:relative; overflow:hidden;
  }
  .ucard::before{
    content:""; position:absolute; inset:0; opacity:0; transition:opacity .35s;
    background:radial-gradient(200px 140px at 100% 0%, var(--gold-soft), transparent 70%);
  }
  .ucard:hover{ transform:translateY(-6px); border-color:var(--gold); }
  .ucard:hover::before{ opacity:1; }
  .ucard .ico{
    width:46px; height:46px; border-radius:12px; background:var(--gold-soft); border:1px solid var(--line);
    display:flex; align-items:center; justify-content:center; margin-bottom:20px; color:var(--gold);
  }
  .ucard h3{ font-size:16.5px; margin-bottom:10px; position:relative; }
  .ucard p{ font-size:13.5px; color:var(--ink-dim); margin-bottom:18px; position:relative; }
  .ucard .badge{
    font-size:11.5px; color:var(--gold-pale); display:inline-flex; align-items:center; gap:6px;
    border-top:1px solid var(--line-2); padding-top:14px; width:100%; font-weight:600;
  }

  /* ================= CTA BAND ================= */
  .cta-band{
    margin:0 auto; max-width:var(--maxw); border-radius:28px; padding:64px 60px;
    background:
      radial-gradient(600px 240px at 85% 0%, rgba(242,169,59,.25), transparent 70%),
      linear-gradient(135deg, var(--panel), var(--panel-2));
    border:1px solid var(--line);
    display:flex; align-items:center; justify-content:space-between; gap:40px; flex-wrap:wrap;
  }
  .cta-band h3{ font-size:clamp(22px,3vw,30px); font-weight:800; max-width:480px; text-align:right; }
  .cta-band p{ color:var(--ink-dim); margin-top:10px; text-align:right; font-size:14.5px; }

  /* ================= FOOTER ================= */
  footer{ padding:80px 0 40px; text-align:center; border-top:1px solid var(--line-2); margin-top:60px; }
  footer .brand{ justify-content:center; margin-bottom:26px; }
  footer .social-mini{ justify-content:center; margin-bottom:30px; }
  footer .foot-links{ display:flex; justify-content:center; gap:28px; margin-bottom:34px; flex-wrap:wrap; }
  footer .foot-links a{ font-size:13.5px; color:var(--ink-dim); }
  footer .foot-links a:hover{ color:var(--gold); }
  footer .fine{ font-size:12.5px; color:var(--ink-dim-2); }
  footer .fine b{ color:var(--gold-pale); }

  .to-top{
    position:fixed; bottom:28px; left:28px; z-index:80; width:48px; height:48px; border-radius:50%;
    background:linear-gradient(95deg,var(--gold),var(--gold-2)); color:#181206; display:flex; align-items:center; justify-content:center;
    box-shadow:0 12px 26px -8px rgba(242,169,59,.55); opacity:0; pointer-events:none; transform:translateY(10px);
    transition:.35s;
  }
  .to-top.show{ opacity:1; pointer-events:auto; transform:translateY(0); }

  /* ================= RESPONSIVE ================= */
  @media (max-width:980px){
    .nav-links{ display:none; }
    .burger{ display:flex; }
    .side-rail{ display:none; }
    .hero-gem{ display:none; }
    .hero-inner{ margin-inline-start:0; text-align:center; align-items:center; }
    .hero p.lead{ margin-inline:auto; }
    .hero-cta{ justify-content:center; }
    .hero-stats{ justify-content:center; }
    .about-grid{ grid-template-columns:1fr; text-align:center; }
    .about-copy{ text-align:center; }
    .stat-row{ grid-template-columns:repeat(3,1fr); }
    .steps{ grid-template-columns:1fr; }
    .steps::before{ display:none; }
    .updates-grid{ grid-template-columns:repeat(2,1fr); }
    .cta-band{ flex-direction:column; text-align:center; padding:44px 30px; }
    .cta-band h3, .cta-band p{ text-align:center; }
  }
  @media (max-width:560px){
    .wrap{ padding:0 20px; }
    .updates-grid{ grid-template-columns:1fr; }
    .stat-row{ grid-template-columns:1fr; }
    section{ padding:80px 0; }
    .cta-band{ padding:36px 22px; border-radius:20px; }
  }

  .surface{
    width:100%;
    height:100%;
    overflow:hidden;
    border-radius:inherit;
}

.surface img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
    transition:.4s;
}

.gcard:hover .surface img{
    transform:scale(1.08);
}