:root{
  --navy:#0a1628;
  --navy-2:#0f2138;
  --gold:#c9a84c;
  --gold-light:#e8cf8a;
  --cyan:#3ec6d8;
  --text:#e8eef5;
  --muted:#8fa3b8;
  --radius:20px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Vazirmatn',sans-serif;
  background:var(--navy);
  color:var(--text);
  overflow-x:hidden;
  line-height:1.8;
}
::selection{background:var(--gold);color:var(--navy)}

/* ---------- background neurons ---------- */
#neurons{
  position:fixed;inset:0;z-index:0;pointer-events:none;
}

/* ---------- header ---------- */
header{
  position:fixed;top:0;right:0;left:0;z-index:100;
  padding:18px 6%;
  display:flex;align-items:center;justify-content:space-between;
  transition:.4s;
}
header.scrolled{
  background:rgba(10,22,40,.85);
  backdrop-filter:blur(14px);
  box-shadow:0 10px 30px rgba(0,0,0,.35);
  padding:12px 6%;
}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.15rem;letter-spacing:.5px}
.logo svg{width:34px;height:34px}
.logo span{color:var(--gold)}
nav ul{display:flex;gap:30px;list-style:none}
nav a{
  color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:500;
  position:relative;transition:.3s;
}
nav a::after{
  content:'';position:absolute;bottom:-6px;right:0;width:0;height:2px;
  background:linear-gradient(90deg,var(--gold),var(--cyan));
  transition:.35s;border-radius:2px;
}
nav a:hover{color:var(--text)}
nav a:hover::after{width:100%}
.header-actions{display:flex;align-items:center;gap:16px}
.lang-btn{
  display:inline-flex;align-items:center;gap:7px;cursor:pointer;
  background:rgba(201,168,76,.1);border:1px solid rgba(201,168,76,.4);color:var(--gold);
  font-family:inherit;font-size:.85rem;font-weight:700;padding:8px 14px;border-radius:10px;transition:.3s;
}
.lang-btn:hover{background:rgba(201,168,76,.25)}
.lang-btn svg{color:var(--cyan)}
.burger{display:none;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;z-index:110}
.burger span{width:26px;height:2.5px;background:var(--gold);border-radius:2px;transition:.35s}
.burger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  min-height:100vh;position:relative;z-index:1;
  display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:50px;
  padding:140px 6% 80px;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(201,168,76,.12);border:1px solid rgba(201,168,76,.35);
  color:var(--gold-light);padding:8px 20px;border-radius:50px;font-size:.85rem;
  animation:fadeUp .8s .1s both;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);animation:pulse 2s infinite}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;line-height:1.35;
  margin:22px 0 18px;animation:fadeUp .8s .25s both;
}
.hero h1 .gradient{
  background:linear-gradient(120deg,var(--gold),var(--gold-light),var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p{color:var(--muted);font-size:1.1rem;max-width:560px;animation:fadeUp .8s .4s both}
.hero-cta{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap;animation:fadeUp .8s .55s both}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 34px;border-radius:50px;font-family:inherit;font-size:1rem;font-weight:700;
  text-decoration:none;cursor:pointer;transition:.35s;border:none;
}
.btn-gold{
  background:linear-gradient(120deg,var(--gold),#b08f36);color:var(--navy);
  box-shadow:0 8px 30px rgba(201,168,76,.35);
}
.btn-gold:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(201,168,76,.5)}
.btn-ghost{background:transparent;color:var(--text);border:1.5px solid rgba(143,163,184,.4)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-4px)}

.hero-visual{position:relative;display:flex;justify-content:center;animation:fadeUp .9s .5s both}
.hero-circle{
  width:min(400px,80vw);aspect-ratio:1;border-radius:50%;position:relative;
  background:radial-gradient(circle at 35% 30%,rgba(62,198,216,.25),transparent 60%),
             radial-gradient(circle at 70% 75%,rgba(201,168,76,.25),transparent 60%),
             var(--navy-2);
  border:1px solid rgba(201,168,76,.3);
  display:flex;align-items:center;justify-content:center;
  animation:float 6s ease-in-out infinite;
}
.hero-circle::before{
  content:'';position:absolute;inset:-18px;border-radius:50%;
  border:1px dashed rgba(62,198,216,.35);
  animation:spin 30s linear infinite;
}
.hero-circle svg{width:52%;filter:drop-shadow(0 0 25px rgba(62,198,216,.4))}
.orbit-chip{
  position:absolute;background:rgba(15,33,56,.9);border:1px solid rgba(201,168,76,.35);
  backdrop-filter:blur(8px);padding:10px 18px;border-radius:14px;font-size:.85rem;font-weight:500;
  white-space:nowrap;box-shadow:0 10px 30px rgba(0,0,0,.4);
  animation-name:float;animation-duration:5s;animation-timing-function:ease-in-out;animation-iteration-count:infinite;
  animation-delay:var(--d,0s);
}
.orbit-chip.c1{top:6%;left:0;--d:.5s}
.orbit-chip.c2{bottom:14%;right:0;--d:1.2s}
.orbit-chip.c3{top:44%;left:-14px;--d:2s}

/* ---------- stats ---------- */
.stats{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:60px 6%;margin:0 auto;max-width:1200px;
}
.stat{
  text-align:center;padding:36px 20px;border-radius:var(--radius);
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid rgba(143,163,184,.15);
  transition:.4s;
}
.stat:hover{transform:translateY(-8px);border-color:rgba(201,168,76,.4)}
.stat .num{font-size:2.6rem;font-weight:900;color:var(--gold)}
.stat .label{color:var(--muted);margin-top:6px;font-size:.95rem}

/* ---------- sections ---------- */
section{position:relative;z-index:1;padding:100px 6%;max-width:1300px;margin:0 auto}
.sec-head{text-align:center;margin-bottom:64px}
.sec-head .tag{
  display:inline-block;color:var(--cyan);font-weight:700;font-size:.9rem;letter-spacing:2px;
  margin-bottom:12px;
}
.sec-head h2{font-size:clamp(1.8rem,3.5vw,2.6rem);font-weight:900}
.sec-head h2 span{color:var(--gold)}
.sec-head p{color:var(--muted);max-width:640px;margin:14px auto 0}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-card{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(160deg,var(--navy-2),#0c1c30);
  border:1px solid rgba(201,168,76,.25);
  padding:50px 40px;text-align:center;
}
.about-card .avatar{
  width:150px;height:150px;margin:0 auto 24px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(62,198,216,.3),rgba(201,168,76,.2));
  border:2px solid rgba(201,168,76,.5);
  display:flex;align-items:center;justify-content:center;
  animation:float 6s ease-in-out infinite;
}
.about-card .avatar svg{width:60%}
.about-card h3{font-size:1.4rem;color:var(--gold-light)}
.about-card .role{color:var(--cyan);font-size:.95rem;margin-top:6px}
.about-card .inst{color:var(--muted);font-size:.9rem;margin-top:14px;padding-top:14px;border-top:1px solid rgba(143,163,184,.15)}
.about-text p{color:var(--muted);margin-bottom:18px}
.about-text ul{list-style:none;margin-top:22px}
.about-text li{
  display:flex;align-items:center;gap:12px;margin-bottom:14px;font-weight:500;
}
.about-text li svg{flex-shrink:0;color:var(--cyan)}

/* ---------- services ---------- */
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.service{
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid rgba(143,163,184,.15);border-radius:var(--radius);
  padding:40px 32px;transition:.4s;position:relative;overflow:hidden;
}
.service::before{
  content:'';position:absolute;top:0;right:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--gold),var(--cyan));
  transform:scaleX(0);transform-origin:right;transition:.45s;
}
.service:hover{transform:translateY(-10px);border-color:rgba(62,198,216,.35);box-shadow:0 20px 50px rgba(0,0,0,.4)}
.service:hover::before{transform:scaleX(1)}
.service .icon{
  width:64px;height:64px;border-radius:16px;margin-bottom:22px;
  background:rgba(201,168,76,.12);border:1px solid rgba(201,168,76,.3);
  display:flex;align-items:center;justify-content:center;color:var(--gold);
  transition:.4s;
}
.service:hover .icon{background:rgba(62,198,216,.12);border-color:rgba(62,198,216,.4);color:var(--cyan);transform:rotate(-8deg) scale(1.08)}
.service h3{font-size:1.15rem;margin-bottom:10px}
.service p{color:var(--muted);font-size:.95rem}

/* ---------- timeline ---------- */
.timeline{position:relative;max-width:800px;margin:0 auto}
.timeline::before{
  content:'';position:absolute;top:0;bottom:0;right:20px;width:2px;
  background:linear-gradient(180deg,var(--gold),var(--cyan));
}
.tl-item{position:relative;padding:0 60px 44px 0}
.tl-item::before{
  content:'';position:absolute;right:12px;top:8px;width:18px;height:18px;border-radius:50%;
  background:var(--navy);border:3px solid var(--gold);
  box-shadow:0 0 0 6px rgba(201,168,76,.15);
}
.tl-item:nth-child(even)::before{border-color:var(--cyan);box-shadow:0 0 0 6px rgba(62,198,216,.15)}
.tl-card{
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid rgba(143,163,184,.15);border-radius:var(--radius);padding:26px 30px;
  transition:.4s;
}
.tl-card:hover{border-color:rgba(201,168,76,.4);transform:translateX(-6px)}
.tl-card .year{color:var(--gold);font-weight:900;font-size:.9rem}
.tl-card h3{margin:6px 0 8px;font-size:1.1rem}
.tl-card p{color:var(--muted);font-size:.95rem}

/* ---------- testimonials ---------- */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.testi{
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid rgba(143,163,184,.15);border-radius:var(--radius);
  padding:36px 30px;transition:.4s;position:relative;
}
.testi:hover{transform:translateY(-8px);border-color:rgba(62,198,216,.35)}
.testi .quote{position:absolute;top:20px;left:26px;font-size:3.5rem;color:rgba(201,168,76,.25);line-height:1;font-family:serif}
.testi p{color:var(--muted);font-size:.95rem;min-height:110px}
.testi .who{display:flex;align-items:center;gap:14px;margin-top:22px;padding-top:20px;border-top:1px solid rgba(143,163,184,.12)}
.testi .who .av{
  width:46px;height:46px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--gold),var(--cyan));
  display:flex;align-items:center;justify-content:center;font-weight:900;color:var(--navy);
}
.testi .who b{display:block;font-size:.95rem}
.testi .who span{color:var(--muted);font-size:.8rem}
.stars{color:var(--gold);letter-spacing:3px;margin-bottom:14px}

/* ---------- contact ---------- */
.contact-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:50px;
  background:linear-gradient(160deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid rgba(201,168,76,.25);border-radius:28px;padding:60px;
}
.contact-info h3{font-size:1.5rem;margin-bottom:20px}
.contact-info>p{color:var(--muted);margin-bottom:30px}
.contact-item{display:flex;align-items:center;gap:16px;margin-bottom:22px}
.contact-item .ci-icon{
  width:48px;height:48px;border-radius:14px;flex-shrink:0;
  background:rgba(62,198,216,.1);border:1px solid rgba(62,198,216,.3);color:var(--cyan);
  display:flex;align-items:center;justify-content:center;
}
.contact-item div b{display:block;font-size:.9rem;color:var(--muted);font-weight:500}
.contact-item div span{font-weight:700}
.contact-form label{display:block;font-size:.9rem;color:var(--muted);margin-bottom:8px}
.contact-form input,.contact-form textarea{
  width:100%;background:rgba(10,22,40,.7);border:1px solid rgba(143,163,184,.25);
  border-radius:14px;padding:14px 18px;color:var(--text);font-family:inherit;font-size:1rem;
  margin-bottom:20px;transition:.3s;resize:vertical;
}
.contact-form input:focus,.contact-form textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(201,168,76,.12);
}
.contact-form .btn{width:100%;justify-content:center}

/* ---------- footer ---------- */
footer{
  position:relative;z-index:1;text-align:center;padding:40px 6%;
  border-top:1px solid rgba(143,163,184,.12);color:var(--muted);font-size:.9rem;
}
footer .gold{color:var(--gold)}

/* ---------- animations ---------- */
@keyframes fadeUp{from{opacity:0;transform:translateY(35px)}to{opacity:1;transform:none}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(62,198,216,.5)}50%{box-shadow:0 0 0 8px rgba(62,198,216,0)}}
.reveal{opacity:0;transform:translateY(40px);transition:.8s cubic-bezier(.16,1,.3,1)}
.reveal.visible{opacity:1;transform:none}
.reveal.d1{transition-delay:.1s}
.reveal.d2{transition-delay:.2s}
.reveal.d3{transition-delay:.3s}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero{grid-template-columns:1fr;text-align:center;padding-top:120px}
  .hero p{margin:0 auto}
  .hero-cta{justify-content:center}
  .about-grid,.contact-wrap{grid-template-columns:1fr}
  .services-grid,.testi-grid{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr}
  .orbit-chip.c1{left:auto;right:0}
  .contact-wrap{padding:40px 28px}
}
@media(max-width:680px){
  nav{
    position:fixed;inset:0;background:rgba(10,22,40,.97);backdrop-filter:blur(16px);
    display:flex;align-items:center;justify-content:center;
    opacity:0;pointer-events:none;transition:.4s;z-index:105;
  }
  nav.open{opacity:1;pointer-events:auto}
  nav ul{flex-direction:column;text-align:center;gap:34px}
  nav a{font-size:1.3rem}
  .burger{display:flex}
  .services-grid,.testi-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:16px}
  .stat{padding:26px 12px}
  .stat .num{font-size:2rem}
  .orbit-chip{
    position:static;white-space:normal;font-size:.8rem;
    animation:none;
  }
  .reveal,.reveal.visible{transform:none;transition:opacity .8s cubic-bezier(.16,1,.3,1)}
  .hero-circle{gap:10px;flex-direction:column;padding:26px}
  .hero-circle svg{width:38%}
  .hero-circle::before{inset:-10px}
}