:root {
  --bg: #070b14;
  --surface: #0f172a;
  --surface-alt: #131c31;
  --border: #1e293b;
  --text: #f8fafc;
  --muted: #94a3b8;
  --accent: #14f195;
  --accent-blue: #38bdf8;
  --accent-purple: #a855f7;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, sans-serif;
  background: radial-gradient(circle at top right, #111c3a 0%, var(--bg) 52%);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent-blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--text);
}

.nav-links { display: flex; gap: 1.25rem; flex-wrap: wrap; font-size: 0.95rem; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--accent); text-decoration: none; }

.hero {
  padding: 3rem 0 2rem;
}

.pill {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  background: rgba(20, 241, 149, 0.1);
  color: var(--accent);
  border: 1px solid rgba(20, 241, 149, 0.35);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2rem, 4vw, 2.85rem);
  line-height: 1.18;
  margin: 0 0 1rem;
}

.hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 1.75rem;
}

.cta-row {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.72rem 1.25rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: transform 0.12s ease, border-color 0.12s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #052e1e; border-color: var(--accent); }
.btn-secondary { background: var(--surface-alt); color: var(--text); }
.btn-secondary:hover { border-color: var(--accent-blue); }

section { margin-top: 3rem; }
h2 { font-size: 1.45rem; margin: 0 0 1rem; }
.section-sub { color: var(--muted); margin: -0.4rem 0 1.25rem; font-size: 0.95rem; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-tag {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--accent-blue);
  text-transform: uppercase;
  margin-bottom: 0.4rem;
}

.card h3 { margin: 0.1rem 0 0.55rem; font-size: 1.15rem; }
.card p { color: var(--muted); font-size: 0.93rem; margin: 0 0 1rem; }

.price {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.stat {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

.stat strong {
  display: block;
  font-size: 1.4rem;
  color: var(--text);
}

.stat span { color: var(--muted); font-size: 0.85rem; }

.article-body {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 2rem;
  margin-top: 1.5rem;
}

.article-body pre {
  background: #060a12;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.88rem;
}

.article-body code {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  color: #bae6fd;
}

footer {
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}