/* Box model reset - ensures consistent sizing across all elements */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: radial-gradient(circle at top, #1a0b3d, #050812);
  color: #dcd7ff;
  font-family: Arial, sans-serif;
  min-height: 100vh;
}

/* Navigation - uses Flexbox for horizontal layout */
nav {
  display: flex;
  justify-content: center;
  gap: 2rem;
  padding: 1.5rem 1rem;
  background: rgba(0, 0, 0, 0.3);
}

nav a {
  color: #dcd7ff;
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: all 0.3s ease;
}

nav a:hover {
  color: #8b5cf6;
  background: rgba(139, 92, 246, 0.1);
}

/* Hero section - demonstrates padding and margin */
.hero {
  text-align: center;
  padding: 5rem 2rem;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: #c4b5fd;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Video placeholder styling */
.video-placeholder {
  background: rgba(139, 92, 246, 0.1);
  border: 2px dashed #8b5cf6;
  border-radius: 12px;
  padding: 4rem 2rem;
  margin: 2rem auto;
  max-width: 800px;
}

.video-placeholder p {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.video-note {
  font-size: 0.9rem;
  color: #a78bfa;
  margin-top: 0.5rem;
}

/* Button styling with intentional padding and margin */
button {
  background: #8b5cf6;
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 2rem;
}

/* Intentional glow effect to draw attention without aggressive marketing */
.glow:hover {
  box-shadow: 0 0 20px #8b5cf6;
  transform: translateY(-4px);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

/* I used CSS Grid for the features section - 3 equal columns */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: 3rem;
  margin: 2rem 0;
  text-align: center;
}

/* Card demonstrates box model: padding, margin, border-radius */
.card {
  background: rgba(255, 255, 255, 0.05);
  padding: 2rem;
  margin: 0.5rem;
  border-radius: 12px;
  border: 1px solid rgba(139, 92, 246, 0.2);
}

.card h3 {
  margin-bottom: 0.5rem;
  color: #c4b5fd;
}

.card p {
  font-size: 0.9rem;
  color: #a78bfa;
}

/* Footer styling */
footer {
  text-align: center;
  padding: 2rem;
  margin-top: 4rem;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(139, 92, 246, 0.2);
}

footer p {
  color: #a78bfa;
  font-size: 0.9rem;
}