/* Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #05060a;
  color: #f5f5f7;
  line-height: 1.6;
}

/* Layout */
.container {
  width: 90%;
  max-width: 960px;
  margin: 0 auto;
}

/* Hero */
.hero {
  padding: 80px 0 60px;
  background: radial-gradient(circle at top left, #3b82f6, #0f172a 55%);
  text-align: left;
}

.hero h1 {
  font-size: 2.8rem;
  letter-spacing: 0.04em;
}

.subtitle {
  margin-top: 8px;
  font-size: 1.1rem;
  color: #cbd5f5;
}

/* Button */
.btn-primary {
  display: inline-block;
  margin-top: 24px;
  padding: 10px 22px;
  border-radius: 999px;
  background: #f97316;
  color: #05060a;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary:hover {
  background: #fb923c;
  transform: translateY(-1px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

/* Main */
main {
  padding: 40px 0 60px;
}

/* Cards & grid */
.card {
  background: #0b1120;
  border-radius: 14px;
  padding: 22px 20px;
  margin-bottom: 22px;
  border: 1px solid #1f2937;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.45);
}

.card h2,
.card h3 {
  margin-bottom: 10px;
}

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

@media (min-width: 720px) {
  .grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Footer */
.footer {
  border-top: 1px solid #1f2937;
  padding: 18px 0 26px;
  font-size: 0.85rem;
  color: #9ca3af;
  text-align: center;
}