/* =========================
   Global Reset
   ========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', system-ui, sans-serif;
}

/* =========================
   Base
   ========================= */
body {
  background: linear-gradient(180deg, #020617, #0f172a);
  color: #e5e7eb;
  line-height: 1.6;
}

/* =========================
   Navbar
   ========================= */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 3rem;
  background: linear-gradient(180deg, #020617, #020617cc);
  position: sticky;
  top: 0;
  z-index: 10;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  display: block;
  height: 36px;
  width: auto;
  filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.35));
}

nav a {
  margin-left: 1.2rem;
  text-decoration: none;
  color: #e5e7eb;
  font-weight: 500;
}

nav a:hover {
  color: #22d3ee;
}

.cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid #22d3ee;
  border-radius: 8px;
}

/* =========================
   Hero
   ========================= */
.hero {
  text-align: center;
  padding: 5rem 2rem 4rem;
  max-width: 900px;
  margin: auto;
}

.hero-logo {
  max-width: 280px;
  width: 100%;
  margin: 0 auto 1.5rem;
  display: block;
  filter: drop-shadow(0 20px 40px rgba(255, 140, 0, 0.45));
}

.hero h2 {
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.1rem;
  color: #cbd5f5;
}

/* =========================
   Button
   ========================= */
.btn {
  display: inline-block;
  margin-top: 1.8rem;
  padding: 0.8rem 1.8rem;
  background: #22d3ee;
  color: #020617;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
}

/* =========================
   Cards
   ========================= */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.8rem;
  padding: 2.5rem;
  max-width: 1200px;
  margin: auto;
}

.card {
  background: rgba(2, 6, 23, 0.85);
  padding: 1.75rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.card h3 {
  margin-bottom: 0.6rem;
}

.card p {
  color: #cbd5f5;
}

/* =========================
   Footer
   ========================= */
footer {
  text-align: center;
  padding: 1.5rem;
  margin-top: 3rem;
  background: #020617;
  font-size: 0.85rem;
  color: #94a3b8;
}

.footer-logo {
  width: 80px;
  margin-bottom: 0.6rem;
  opacity: 0.85;
}

/* =========================
   Mobile
   ========================= */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 0.8rem;
    padding: 1rem;
  }

  .hero-logo {
    max-width: 200px;
  }

  .hero h2 {
    font-size: 2rem;
  }

  .features {
    padding: 1.5rem;
  }
}