/* Palette to mirror Luna docs */
:root{
  --primary:#4051b5;      /* indigo */
  --primary-ink:#ffffff;  /* header text */
  --accent:#00bcd4;       /* cyan accent */
  --ink:#1f2330;          /* body text */
  --muted:#5b6173;        /* secondary text */
  --bg:#ffffff;           /* page */
  --card:#f6f7fb;         /* cards */
  --border:#e6e8f0;       /* borders */
  --shadow:0 6px 18px rgba(0,0,0,.06);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font:16px/1.6 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,"Helvetica Neue",Arial,"Noto Sans","Apple Color Emoji","Segoe UI Emoji";
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

.wrap{max-width:1100px;margin:0 auto;padding:0 20px}

/* Header */
.site-header{
  background:var(--primary);
  color:var(--primary-ink);
  position:sticky;top:0;z-index:10;
  box-shadow:var(--shadow);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;height:64px;
}
.brand{font-weight:700;letter-spacing:.2px}
.nav a{
  color:var(--primary-ink);text-decoration:none;margin-left:18px;opacity:.9
}
.nav a:hover{opacity:1;text-decoration:underline}

/* Hero */
.hero{padding:56px 0 28px}
.hero h1{margin:0 0 10px;font-size:28px;line-height:1.25}
.hero p{color:var(--muted);margin:0 0 18px}
.cta{display:flex;gap:12px;flex-wrap:wrap}

.btn{
  display:inline-block;border-radius:10px;padding:10px 16px;
  text-decoration:none;font-weight:600;border:1px solid transparent;
}
.btn.primary{background:var(--primary);color:var(--primary-ink)}
.btn.ghost{background:transparent;border-color:var(--border);color:var(--ink)}
.btn.primary:hover{filter:brightness(.95)}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}

/* Cards */
.grid{
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  margin:14px 0 28px;
}
.card{
  background:var(--card);border:1px solid var(--border);border-radius:14px;
  padding:16px;box-shadow:var(--shadow)
}
.card h2{margin:0 0 6px;font-size:18px}
.card p{margin:0 0 10px;color:var(--muted)}
.link{color:var(--primary);text-decoration:none;font-weight:600}
.link:hover{text-decoration:underline}

/* Content */
.content{margin:12px 0 48px}
.content h2{margin:0 0 8px}
.content ul{margin:0 0 0 18px}

/* Footer */
.site-footer{
  border-top:1px solid var(--border);
  background:#fafbff;color:var(--muted)
}
.site-footer .wrap{
  height:64px;display:flex;align-items:center;justify-content:space-between
}

/* Responsive */
@media (max-width:640px){
  .nav{display:none}
  .hero{padding:36px 0 16px}
  .hero h1{font-size:22px}
}