An advanced and intuitive MultiTask Calendar built using pure HTML, CSS, and vanilla JavaScript — designed specifically for assigning tasks to multiple dates seamlessly. This calendar widget enables users to select multiple days at once and perform uniform actions across all selected dates, making it perfect for productivity tools, admin dashboards, or client-based scheduling interfaces.

Its clean, modern layout features interactive cell highlights, smooth date selection animations, and real-time task binding, all wrapped in a lightweight, fully responsive design. Ideal for both light and dark themes, this borderless calendar interface is highly customizable and optimized for user engagement and efficiency.

🔑 Key Features:

• Built with pure HTML, CSS & JavaScript (no external libraries)

• Multi-date selection with click-and-hold or toggling

• Task assignment functionality across all selected days

• Dynamic month and year navigation

• Responsive layout suitable for all devices and screen sizes

• Today’s date auto-highlighted for easy tracking

• Smooth animations on selection and interaction

• Dark glass UI theme with clean hover effects

• Compact design – easily embeddable in tight UIs

• Fully customizable task interaction logic

🎯 Use Cases:

• Admin panels for scheduling tasks/events

• Freelance dashboards with multi-date planning

• Productivity and to-do list web apps

• Education or attendance management systems

• Booking or appointment assignment tools

• Calendar-based reminder systems