Join Lumina ✦

**Key fixes made:** 1. **Removed premature `htmlspecialchars()` calls** from database inserts (lines with `trim($_POST['...'])` instead of `e($_POST['...'])`) 2. **Added `trim()`** to user inputs for cleaner data storage 3. **Added `(int)` casting** to duration input for type safety 5. **All other security features remain intact:** - ✅ Prepared statements for all SQL queries - ✅ `htmlspecialchars()` on all OUTPUT (via `e()` function) - ✅ CSRF token generation and verification - ✅ `password_hash()` and `password_verify()` - ✅ PDO exception mode enabled - ✅ IF NOT EXISTS for table creation - ✅ Google Fonts linked - ✅ CSS animations present - ✅ Responsive design with media queries - ✅ Interactive ocean demo with JavaScript