body {
  margin: 0;
  font-family: 'Helvetica Neue', 'Segoe UI', sans-serif;
  background-color: #0f0f0f;
  color: #e5e5e5;
  line-height: 1.6;
  overflow-x: hidden;
}

canvas#bg {
  position: fixed;
  top: 0;
  left: 0;
  z-index: -1;
}

.overlay {
  position: relative;
  z-index: 1;
  width: 100%;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 5%;
  background: rgba(15, 15, 15, 0.9);
  border-bottom: 1px solid #1a1a1a;
  position: sticky;
  top: 0;
}

.logo {
  font-size: 1.8rem;
  font-weight: bold;
  color: #ffffff;
}

.nav-links a {
  margin-left: 24px;
  font-size: 0.95rem;
  color: #cccccc;
  text-decoration: none;
  transition: color 0.3s ease;
}

.nav-links a:hover {
  color: #ffffff;
}

.hero {
  padding: 120px 5% 80px;
  text-align: center;
}

.hero h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
  color: #ffffff;
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
  margin: 0 auto 40px;
  color: #bbbbbb;
}

.cta-button {
  background: linear-gradient(135deg, #00b4d8, #0077b6);
  border: none;
  color: white;
  font-size: 1rem;
  padding: 14px 32px;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.3s ease;
}

.cta-button:hover {
  background: linear-gradient(135deg, #0096c7, #023e8a);
}

.features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 32px;
  padding: 80px 5% 40px;
  background: #121212;
}

.feature {
  background: #1c1c1c;
  padding: 30px 24px;
  border-radius: 16px;
  width: 300px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  transition: transform 0.2s ease;
}

.feature:hover {
  transform: translateY(-4px);
}

.feature h2 {
  color: #00b4d8;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.feature p {
  color: #cccccc;
  font-size: 0.95rem;
}

section.howto, section.faq {
  padding: 80px 5%;
  text-align: center;
}

.howto h2, .faq h2 {
  font-size: 1.8rem;
  color: #ffffff;
  margin-bottom: 20px;
}

.howto p {
  font-size: 1.1rem;
  color: #bbbbbb;
}

.faq-item {
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.faq-item h3 {
  color: #00b4d8;
  font-size: 1.05rem;
}

.faq-item p {
  color: #cccccc;
  font-size: 0.95rem;
}

footer {
  text-align: center;
  padding: 60px 20px;
  background: #101010;
  font-size: 0.85rem;
  color: #777;
}

@media (max-width: 768px) {
  .features {
    flex-direction: column;
    align-items: center;
  }

  .feature {
    width: 90%;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }
}