/* RESET BASE */
body, html { margin: 0; padding: 0; overflow-x: hidden; background: #000; /* fallback if canvas fails */ font-family: Arial, sans-serif; color: #0ff; }


/* Background animations always behind */
#starfield,
#particles-js {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* behind content */
  pointer-events: none;
}

/* NAVIGATION */
nav {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 25px;
  z-index: 10;
}
nav a {
  color: #00ffe7;
  text-decoration: none;
  font-size: 1.1rem;
  text-shadow: 0 0 5px #00ffe7;
  transition: color 0.3s ease;
}
nav a:hover { color: #fff; }

/* HERO HEADING */
.hero {
  text-align: center;
  margin-top: 100px; /* spacing under nav */
  margin-bottom: 50px; /* spacing above certs */
}
.hero h1.glow {
  font-size: 3rem;
  color: #00ffe7;
  text-shadow: 0 0 20px #0ff, 0 0 40px #0ff;
}

/* CERTIFICATIONS SECTION */
.certifications {
  padding: 20px;
  position: relative;
  z-index: 1;
}
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.cert-card {
  background: rgba(26, 26, 26, 0.85);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
  text-align: center;
  color: #fff;
  transition: transform 0.3s ease;
}
.cert-card:hover { transform: scale(1.05); }
.cert-card img {
  max-width: 80px;
  margin-bottom: 0.8rem;
}

.certification-heading {
    text-align: center;
    font-size: 2.5rem;
    font-weight: bold;
    color: cyan;
    margin: 60px 0 30px 0; /* pushes it down from navbar and above cards */
    text-shadow: 0 0 15px rgba(0, 255, 255, 0.7);
}