* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: radial-gradient(circle at top, #0f172a, #020617);
  color: #e5e7eb;
  min-height: 100vh;
}

/* HERO */
.hero {
  text-align: center;
  padding: 80px 20px;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.hero p {
  color: #94a3b8;
  margin-bottom: 25px;
}

.hero button {
  padding: 12px 28px;
  border-radius: 30px;
  border: none;
  background: linear-gradient(135deg, #38bdf8, #6366f1);
  color: white;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.hero button:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(99,102,241,0.6);
}

/* FEATURES */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  padding: 40px 20px;
  max-width: 1000px;
  margin: auto;
}

.card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 25px;
  text-align: center;
  transition: transform 0.2s;
}

.card:hover {
  transform: translateY(-5px);
}

.card h3 {
  margin-bottom: 10px;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 20px;
  color: #64748b;
  font-size: 0.9rem;
}

/* MOBILE */
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2rem;
  }
}