:root{
  --bg:#0a0e17;
  --bg-alt:#0e1422;
  --surface:#121a2b;
  --border:#1f2a40;
  --text:#e8ecf4;
  --text-dim:#8b96ad;
  --accent:#37e2c6;
  --accent-2:#5b8cff;
  --radius:16px;
  --wrap:1120px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Inter',system-ui,-apple-system,sans-serif;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
html[data-lang="fa"] body{font-family:'Vazirmatn','Inter',system-ui,sans-serif}
html[data-lang="ar"] body{font-family:'Cairo','Inter',system-ui,sans-serif}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* header */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,14,23,0.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;white-space:nowrap}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#0a0e17;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
}
.main-nav{display:flex;gap:22px;flex:1;justify-content:center}
.main-nav a{color:var(--text-dim);font-size:14.5px;font-weight:500;transition:color .15s}
.main-nav a:hover{color:var(--text)}
.lang-switch{
  display:flex;background:var(--surface);border:1px solid var(--border);border-radius:999px;padding:3px;gap:2px;
}
.lang-opt{
  background:transparent;border:none;color:var(--text-dim);
  border-radius:999px;padding:7px 13px;font-size:12.5px;font-weight:700;cursor:pointer;
  letter-spacing:.03em;transition:background .15s, color .15s;
}
.lang-opt:hover{color:var(--text)}
.lang-opt.active{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#06121a}

/* hero */
.hero{position:relative;padding:120px 0 90px;overflow:hidden}
.hero-inner{position:relative;z-index:2;max-width:780px}
.eyebrow{
  color:var(--accent);font-weight:600;font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:18px;
}
.hero h1{font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em}
.hero h1 span{display:block}
.hero-gradient{
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{color:var(--text-dim);font-size:17px;margin-top:22px;max-width:640px}
.hero-cta{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;padding:13px 24px;border-radius:10px;font-weight:600;font-size:14.5px;
  transition:transform .15s ease, opacity .15s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#06121a}
.btn-ghost{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent)}
.hero-grid{
  position:absolute;inset:0;z-index:1;
  background-image:radial-gradient(circle at 15% 20%, rgba(55,226,198,0.12), transparent 40%),
                    radial-gradient(circle at 85% 0%, rgba(91,140,255,0.14), transparent 45%);
}

/* stats */
.stats{border-top:1px solid var(--border);border-bottom:1px solid var(--border);background:var(--bg-alt)}
.stats-inner{display:flex;justify-content:space-around;padding:36px 24px;flex-wrap:wrap;gap:24px}
.stat{display:flex;flex-direction:column;align-items:center;gap:4px}
.stat-num{font-size:28px;font-weight:800;color:var(--accent)}
.stat-label{color:var(--text-dim);font-size:13.5px}

/* sections */
.section{padding:100px 0}
.section-tag{color:var(--accent);font-weight:600;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.section h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;letter-spacing:-.01em;max-width:680px}
.section-lead{color:var(--text-dim);font-size:16.5px;margin-top:16px;max-width:640px}

/* portfolio cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;margin-top:48px}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:30px;display:flex;flex-direction:column;gap:14px;transition:border-color .15s, transform .15s;
}
.card:hover{border-color:var(--accent);transform:translateY(-3px)}
.card-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(55,226,198,0.1);color:var(--accent);
}
.card-icon svg{width:22px;height:22px}
.card h3{font-size:19px;font-weight:700}
.card p{color:var(--text-dim);font-size:14.5px;flex:1}
.card-link{color:var(--accent);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.card-link .arrow{transition:transform .15s}
.card-link:hover .arrow{transform:translateX(3px)}
html[dir="rtl"] .card-link:hover .arrow{transform:translateX(-3px)}
.card-link-soon{color:var(--text-dim);cursor:default}

/* values */
.values-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:28px;margin-top:44px}
.value h3{font-size:17px;font-weight:700;margin-bottom:10px}
.value p{color:var(--text-dim);font-size:14.5px}

/* contact */
.contact{background:var(--bg-alt);border-top:1px solid var(--border)}
.contact-inner{text-align:center;display:flex;flex-direction:column;align-items:center}
.contact .section-lead{margin-left:auto;margin-right:auto}
.contact-email{
  margin-top:26px;font-size:19px;font-weight:700;color:var(--accent);
  border-bottom:1px solid transparent;
}
.contact-email:hover{border-color:var(--accent)}

.social-row{display:flex;gap:14px;margin-top:32px}
.social-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--border);color:var(--text-dim);
  transition:color .15s, border-color .15s;
}
.social-icon svg{width:18px;height:18px}
.social-icon:hover{color:var(--accent);border-color:var(--accent)}

/* footer */
.site-footer{border-top:1px solid var(--border);padding:28px 0}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;color:var(--text-dim);font-size:13.5px}
.footer-links{display:flex;gap:20px}
.footer-links a:hover{color:var(--text)}

@media (max-width:760px){
  .main-nav{display:none}
  .header-inner{justify-content:space-between}
  .hero{padding:80px 0 60px}
  .section{padding:70px 0}
}