body { font-family: Arial, sans-serif; margin: 0; padding: 20px; background: #f3f6fb; }
header { background: #1e88e5; color: #fff; padding: 12px 20px; border-radius: 6px; }
main { background: #fff; padding: 20px; border-radius: 6px; margin-top: 12px; }

/* Navbar styles */
.main-nav { margin-top: 8px; }
.main-nav a { color: #fff; text-decoration: none; margin-right: 8px; padding: 6px 10px; border-radius: 6px; display: inline-block; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.04); }
.main-nav a:hover { background: rgba(255,255,255,0.08); }
.main-nav a.active { background: rgba(255,255,255,0.22); font-weight: 600; border-color: rgba(255,255,255,0.2); }

/* Small tweaks for header text and nav spacing */
header h1 { display: inline-block; margin: 0; font-size: 40px; }
header p { display: inline-block; margin-left: 16px; }