:root {
  --bg: #0f1226;
  --card: #171a34;
  --text: #f3f5ff;
  --muted: #c1c6f0;
  --primary: #00c2ff;
  --accent: #7e7bff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Be Vietnam Pro", system-ui, sans-serif;
  background: linear-gradient(180deg, #0a0d1c 0%, #131739 100%);
  color: var(--text);
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo span { color: var(--primary); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

.nav a {
  color: var(--text);
  text-decoration: none;
}

.hero {
  padding-bottom: 3rem;
}

.hero-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 2rem;
  align-items: center;
  padding-top: 2.5rem;
}

.tag {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(126, 123, 255, 0.2);
}

h2 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 1rem 0;
}

.btn {
  display: inline-block;
  border-radius: 12px;
  padding: 0.75rem 1.2rem;
  font-weight: 700;
}

.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #050818;
  text-decoration: none;
}

.btn-outline {
  border: 1px solid #6b72be;
  color: var(--text);
  text-decoration: none;
}

.hero-actions { display: flex; gap: 1rem; margin-top: 1.25rem; }

.hero-card {
  background: rgba(23, 26, 52, 0.95);
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid #2e3468;
}

.section-title {
  margin: 2rem 0 1rem;
  font-size: 1.7rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.products {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.product {
  background: var(--card);
  border-radius: 14px;
  padding: 1rem;
  border: 1px solid #2a2f58;
}

.product .price {
  color: #7dffd0;
  font-weight: 700;
}

.features {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.features article {
  background: var(--card);
  padding: 1rem;
  border-radius: 12px;
}

.steps li { margin-bottom: 0.6rem; color: var(--muted); }

footer {
  margin-top: 3rem;
  border-top: 1px solid #2c3158;
}

.footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

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

  .footer {
    flex-direction: column;
    gap: 0.5rem;
  }
}