* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Roboto', sans-serif;
  line-height: 1.6;
  background: white;
  color: #222;
}

#particles-js {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

img {
    width: 60vw;
}

h1, h2, h3 {
  font-weight: 700;
}

a {
  text-decoration: none;
  color: white;
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}
.hero h1 {
  font-size: 3rem;
  color: #0078ff;
}
.hero p {
  margin: 1rem 0;
  font-size: 1.2rem;
  color: #444;
}
.btn {
  background: #0078ff;
  padding: 0.75rem 1.5rem;
  border-radius: 5px;
  font-weight: 500;
  transition: background 0.3s ease;
}
.btn:hover {
  background: #005fcc;
}

/* Sections */
.section {
  padding: 4rem 2rem;
  max-width: 1100px;
  margin: auto;
}
.section.light {
  background: #f9f9f9;
  border-radius: 8px;
}
.cards {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.card {
  background: white;
  padding: 1.5rem;
  flex: 1 1 250px;
  border-radius: 8px;
  border: 1px solid #eee;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}
.card h3 {
  color: #0078ff;
}

/* CTA */
.cta {
  text-align: center;
  padding: 3rem;
  background: linear-gradient(90deg, #0078ff, #00c6ff);
  color: white;
}
.cta h2 {
  margin-bottom: 1rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  background: #f1f1f1;
  margin-top: 2rem;
}