* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  font-family: Arial, sans-serif;
  overflow-x: hidden;
}

body {
  line-height: 1.5;
}

/* Hero section */
.hero {
  position: relative;
  height: 100vh;
  background: url('images/helix_bg.jpg') no-repeat center center / cover fixed;
  overflow: hidden;
  color: white;
  text-align: center;
}

.grid-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.grid-overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: 
  linear-gradient(to right, rgba(255,255,255,0.05) 1px, transparent 1px),
  linear-gradient(to bottom, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 10px 10px; /* smaller grid */
}

/* Hero content */
.hero-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 1rem;
}

.hero-content .text {
  max-width: 1200px;
  width: 100%;
  padding: 1rem;
}

.hero-content h1 {
  font-size: 15rem;
  line-height: 1.1;
  margin-bottom: 0.5rem;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.7);
}

.hero-content .subtitle {
  font-size: 1.5rem;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

/* Images grid */
.hero-images {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.hero-images img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.5);
}

/* Content section */
.content {
  padding: 2rem;
  text-align: center;
}

/* Responsive styles */
@media (max-width: 1200px) {
  .hero-content h1 {
    font-size: 6rem;
  }
}

@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 4rem;
  }

  .hero-content .subtitle {
    font-size: 1rem;
  }

  .hero-images {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 3rem;
  }

  .hero-images {
    grid-template-columns: 1fr;
  }
}