:root{
  --navy-950:#080E1C;--navy-900:#0F172A;--navy-800:#16233F;--blue:#1E3A8A;
  --accent:#22D3EE;--accent-2:#38BDF8;--accent-dark:#0E7490;
  --bg:#FFF;--bg-soft:#F6F9FC;--text:#0F172A;--muted:#5B6B84;--border:#E4EAF2;
  --radius:18px;--shadow-sm:0 2px 10px rgba(15,23,42,.05);
  --shadow-md:0 12px 34px rgba(15,23,42,.09);--shadow-lg:0 28px 70px rgba(2,8,20,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Vazirmatn',Tahoma,sans-serif;background:var(--bg);color:var(--text);line-height:1.9;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul{list-style:none}
.container{max-width:1200px;margin-inline:auto;padding-inline:20px}
.latin{font-family:'Vazirmatn',Tahoma,sans-serif;letter-spacing:.4px;font-variant-numeric:tabular-nums}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 28px;border-radius:13px;font-family:inherit;font-weight:800;font-size:.95rem;cursor:pointer;border:none;transition:.3s;white-space:nowrap}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#062033;box-shadow:0 10px 26px rgba(34,211,238,.32)}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(34,211,238,.42)}
.btn-sm{padding:10px 20px;font-size:.88rem;border-radius:11px}

header{position:fixed;top:0;right:0;left:0;z-index:100;background:rgba(8,14,28,.94);box-shadow:0 8px 30px rgba(0,0,0,.35)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{width:42px;height:42px;flex-shrink:0;filter:drop-shadow(0 2px 10px rgba(34,211,238,.22))}
.brand-text{display:flex;flex-direction:column;line-height:1.25;color:#fff;font-weight:900;font-size:1.15rem}
.brand-text small{font-weight:600;font-size:.6rem;letter-spacing:3px;color:var(--accent)}
.nav-links{display:flex;gap:6px}
.nav-links a{color:#CBD5E1;font-size:.92rem;font-weight:600;padding:8px 14px;border-radius:9px;transition:.25s}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
.header-actions{display:flex;align-items:center;gap:12px}
.burger{display:none;background:none;border:none;color:#fff;cursor:pointer;padding:6px}
.burger svg{width:26px;height:26px}
.mobile-menu{display:none;background:var(--navy-950);border-top:1px solid rgba(148,163,184,.15);padding:12px 20px 22px}
.mobile-menu a{display:block;color:#CBD5E1;font-weight:600;padding:13px 6px;border-bottom:1px solid rgba(148,163,184,.1)}
.mobile-menu a:hover{color:var(--accent)}
.mobile-menu .btn{margin-top:16px;width:100%}

.project-page{padding:110px 0 80px}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:.9rem;font-weight:700;margin-bottom:28px;transition:.25s}
.back-link:hover{color:var(--accent-dark)}
.project-hero{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:end;margin-bottom:52px}
.project-hero-img{border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-md);width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top center}
.eyebrow{display:inline-block;background:rgba(34,211,238,.13);color:var(--accent-dark);font-size:.8rem;font-weight:800;padding:6px 16px;border-radius:999px;margin-bottom:14px}
.project-hero h1{font-size:clamp(1.5rem,3vw,2.2rem);font-weight:900;line-height:1.5;margin-bottom:16px}
.project-hero-lead{color:var(--muted);font-size:1rem;margin-bottom:18px}
.p-tags{display:flex;flex-wrap:wrap;gap:7px}
.p-tags span{font-size:.72rem;font-weight:700;color:var(--accent-dark);background:rgba(34,211,238,.12);padding:4px 11px;border-radius:999px}
.project-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;padding-top:18px;border-top:1px dashed var(--border)}
.project-meta li{font-size:.88rem;color:var(--muted);font-weight:600}
.project-meta strong{color:var(--text);display:block;font-size:.95rem}

.project-section{margin-bottom:48px}
.project-section h2{font-size:1.25rem;font-weight:900;margin-bottom:16px}
.project-section p{color:var(--muted);font-size:.95rem;margin-bottom:12px}
.feature-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:12px}
.feature-list li{display:flex;align-items:flex-start;gap:10px;background:var(--bg-soft);border:1px solid var(--border);border-radius:12px;padding:14px 16px;font-size:.9rem;font-weight:600}
.feature-list svg{width:20px;height:20px;color:var(--accent-dark);flex-shrink:0;margin-top:3px}

.project-gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.project-gallery figure{margin:0;cursor:zoom-in;border-radius:14px;overflow:hidden;border:1px solid var(--border);background:#fff;transition:.3s}
.project-gallery figure:hover{border-color:rgba(34,211,238,.55);transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.project-gallery img{width:100%;aspect-ratio:16/10;object-fit:cover;object-position:top center}
.project-gallery figcaption{padding:10px 14px;font-size:.82rem;font-weight:700;color:var(--muted)}
.project-gallery img[src$=".svg"]{object-fit:contain;background:var(--bg-soft);padding:20px}

.project-cta{margin-top:56px;padding:36px;border-radius:var(--radius);background:linear-gradient(135deg,var(--navy-900),var(--blue));color:#fff;text-align:center}
.project-cta h2{font-size:1.35rem;margin-bottom:10px}
.project-cta p{color:rgba(203,213,225,.85);margin-bottom:22px;font-size:.95rem}

footer{background:var(--navy-950);color:#94A3B8;padding:28px 0;text-align:center;font-size:.85rem}

.lightbox{position:fixed;inset:0;z-index:200;background:rgba(8,14,28,.92);display:grid;place-items:center;padding:20px;opacity:0;visibility:hidden;transition:.3s}
.lightbox.open{opacity:1;visibility:visible}
.lightbox img{max-width:min(1100px,96vw);max-height:86vh;border-radius:12px;box-shadow:var(--shadow-lg)}
.lightbox-caption{color:rgba(203,213,225,.9);font-size:.9rem;font-weight:600;margin-top:14px;text-align:center}
.lightbox-close{position:absolute;top:18px;left:18px;width:44px;height:44px;border-radius:12px;border:none;background:rgba(255,255,255,.12);color:#fff;font-size:1.6rem;cursor:pointer}

@media (max-width:900px){
  .nav-links,.header-actions .btn{display:none}
  .burger{display:block}
  .project-hero{grid-template-columns:1fr}
}
@media (max-width:600px){
  .project-page{padding:96px 0 60px}
  .project-gallery{grid-template-columns:1fr}
}