* { box-sizing: border-box; }
body {
  font-family: 'Vazirmatn', sans-serif;
  background: #1a1a2e;
  color: #fff;
  margin: 0;
  padding: 0;
  direction: rtl;
  overflow: hidden;
  line-height: 1.6;
}
#particles-js {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1;
  opacity: 1;
}
.content {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  text-align: center; z-index: 1;
  max-width: 90%; width: 100%;
}
.logo-wrapper {
  margin-bottom: 1rem;
}
.logo-wrapper img {
  width: 120px; height: 120px;
  display: block; margin: 0 auto 0.5rem;
  filter: drop-shadow(0 0 10px rgba(255,255,255,0.3));
}
.subtitle {
  font-size: 1.2rem; margin: 0; opacity: 0.8; font-weight: 400;
}
h1 {
  font-size: 3rem;
  margin: 0 0 1rem;
  color: #fff;
  font-weight: 700;
}
.description { 
  font-size: 1.1rem; margin: 1.5rem 0; opacity: 0.8; 
  max-width: 500px; margin-left: auto; margin-right: auto;
}
.icons {
  display: flex; justify-content: center; gap: 1.5rem; margin-top: 2rem;
  flex-wrap: wrap;
}
.icons a {
  transition: all 0.3s ease;
}
.icons a:hover { transform: scale(1.05); }

@media (max-width: 1024px) and (min-width: 769px) {
  h1 { font-size: 2.5rem; }
  .logo-wrapper img { width: 100px; height: 100px; }
  .description { font-size: 1rem; }
  .icons { gap: 1.2rem; }
}

@media (max-width: 768px) {
  .content { padding: 1rem; max-width: 95%; }
  h1 { font-size: 2.2rem; }
  .logo-wrapper img { width: 80px; height: 80px; }
  .subtitle { font-size: 1rem; }
  .description { font-size: 1rem; margin: 1rem 0; }
  .icons { gap: 1rem; justify-content: center; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.8rem; }
  .logo-wrapper img { width: 70px; height: 70px; }
  .icons { gap: 0.8rem; }
  .icons img { width: 40px !important; height: 40px !important; }
}