body {
  font-family: system-ui, sans-serif;
  margin: 0;
  color: #f8fafc;
  align-items: center;
  background-color: transparent;
  position: relative;
  isolation: isolate;
  min-height: 100vh;
}
html {
  scroll-behavior: smooth;
  background-color: #0f172a;
}

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;

  display: flex;
  justify-content: space-between;
  align-items: center;

  padding: 1rem 3rem;
  box-sizing: border-box;

  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);

  z-index: 1000;
}

.logo {
  color: white;
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: bold;
}

.navbar ul {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.navbar a:hover {
  color: #38bdf8;
  font-size: 1.1rem;
}

section {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2rem;
}

.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 1s ease-out,
    transform 1s ease-out;
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: 0.2s;
}
.delay-2 {
  transition-delay: 0.6s;
}
.delay-3 {
  transition-delay: 1s;
}


#universe {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

main,
footer {
  position: relative;
  z-index: 1;
}

.controls {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 1001;
}