:root {
  --color-bg: #121212;
  --color-card: #1E1E1E;
  --color-text-main: #FFFFFF;
  --color-text-muted: #A0A0A0;
  --color-border: #333333;
  
  --color-neon-lime: #CCFF00;
  --color-neon-blue: #00F0FF;
  
  --shadow-neon: 0 0 20px rgba(204, 255, 0, 0.2);
  --shadow-neon-blue: 0 0 20px rgba(0, 240, 255, 0.2);
}

body {
  background-color: var(--color-bg);
  color: var(--color-text-main);
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(0, 240, 255, 0.05) 0%, transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(204, 255, 0, 0.05) 0%, transparent 25%);
}

.hero {
  padding: 6rem 1rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero-content p {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 500px;
}

/* Safe Journey Map Metaphor */
.hero-visual {
  position: relative;
  height: 400px;
  background: var(--color-card);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}

.map-line {
  position: absolute;
  top: 50px;
  bottom: 50px;
  left: 60px;
  width: 2px;
  background: var(--color-border);
}

.map-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(to bottom, var(--color-neon-blue), var(--color-neon-lime));
  box-shadow: var(--shadow-neon);
}

.waypoint {
  position: relative;
  padding-left: 5rem;
  z-index: 10;
}

.waypoint::before {
  content: '';
  position: absolute;
  left: 31px;
  top: 5px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 2px solid var(--color-neon-blue);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.5);
}

.waypoint.end::before {
  border-color: var(--color-neon-lime);
  box-shadow: 0 0 10px rgba(204, 255, 0, 0.5);
}

.waypoint h4 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.waypoint p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Features */
.features {
  max-width: 1200px;
  margin: 0 auto 6rem;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-card {
  background: var(--color-card);
  padding: 2.5rem 2rem;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
  border-color: var(--color-neon-blue);
  box-shadow: var(--shadow-neon-blue);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
}

.feature-card p {
  color: var(--color-text-muted);
  line-height: 1.6;
}

.btn-primary {
  background: transparent;
  color: var(--color-neon-lime);
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  display: inline-block;
  border: 2px solid var(--color-neon-lime);
  box-shadow: 0 0 10px rgba(204, 255, 0, 0.2);
  transition: all 0.2s;
}

.btn-primary:hover {
  background: var(--color-neon-lime);
  color: var(--color-bg);
  box-shadow: var(--shadow-neon);
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 4rem;
  }
  .hero-content p {
    margin: 0 auto 2rem;
  }
  .features {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    text-align: left;
  }
}