:root {
  --bg: #0f1724;
  --accent: #7ab4ff;
  --text: #dbe7ef;
  color-scheme: dark;
}

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

body {
  font-family: Inter, system-ui, Arial;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 24px;
}

.topbar {
  background: #0b1220;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.top-actions {
  display: flex;
  gap: 12px;
}

.btn {
  background: var(--accent);
  color: #000;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background 0.2s, transform 0.15s;
}

.btn:hover {
  background: #9cc8ff;
  transform: translateY(-2px);
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
}

.btn.outline {
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn.large {
  padding: 14px 24px;
  font-size: 1rem;
}

.hero {
  padding: 80px 0;
}

.hero-inner {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.hero-content {
  flex: 1;
  min-width: 300px;
}

.hero-content h2 {
  font-size: 2rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

.hero-content p {
  margin-bottom: 24px;
  color: #b9c9d8;
  max-width: 600px;
}

.cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.card {
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
  border-radius: 12px;
  min-width: 260px;
}

.card h4 {
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.card ul {
  list-style: none;
}

.card li + li {
  margin-top: 8px;
}

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

.card a:hover {
  text-decoration: underline;
}

.site-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  text-align: center;
  color: #aaa;
  margin-top: 60px;
  font-size: 0.9rem;
}

/* Responsive tweaks */
@media (max-width: 900px) {
  .hero-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-content {
    text-align: center;
  }

  .cta {
    justify-content: center;
  }

  .card {
    width: 100%;
    text-align: center;
  }
}