I'll enhance the design to be more modern like Stripe's interface and add proper card brand logos. Let me update the components with a more polished design and better card brand representations.

I've completely redesigned the card management UI with a modern Stripe-like aesthetic and added proper card brand icons. Here are the key improvements:

Modern Design Enhancements:

Visual Design:

• Stripe-inspired styling with clean, modern aesthetics
• Enhanced shadows and borders for depth and hierarchy
• Better color scheme with proper contrast and focus states
• Improved typography with better font weights and sizes
• Gradient backgrounds for default cards to make them stand out

Card Brand Icons:

• ✅ Custom SVG card brand icons for Visa, Mastercard, Amex, and Discover
• ✅ Proper brand colors and styling for each card type
• ✅ Automatic card brand detection based on card number patterns
• ✅ Real-time brand display as you type the card number

Enhanced UX:

• Focus states with blue rings and better visual feedback
• Larger input fields (48px height) for better mobile experience
• Better spacing and section organization
• Improved error states with red borders and clear messaging
• Professional button styling with proper hover states

Card Display:

• Premium card styling with better shadows and spacing
• Clear default card indication with star icon and gradient background
• Better card information layout with proper visual hierarchy
• Hover effects for interactive elements

Form Improvements:

• Section organization with clear headers for Card Information and Billing Information
• Visual icons for security (lock icon for CVV)
• Real-time card brand detection and display
• Better placeholder text and field labeling
• Improved validation with better error messaging

The design now matches modern payment interfaces like Stripe, with clean lines, proper spacing, and professional styling throughout. The card brand icons are properly styled and positioned, making it easy for users to identify their payment methods at a glance.

I'll make the modal more compact by reducing text sizes, spacing, and overall dimensions to better fit the modal format.

I've made the modal much more compact by:

Size Reductions:

Text Sizes:

• Headers: text-xl → text-lg, text-lg → text-base
• Labels: text-sm → text-xs
• Input text: text-base → text-sm
• Button text: text-base → text-sm

Spacing:

• Main containers: space-y-6 → space-y-4
• Form sections: space-y-4 → space-y-3
• Padding: p-6 → p-4, p-4 → p-3
• Margins: mb-4 → mb-3, mb-2 → mb-1

Component Sizes:

• Input height: h-12 → h-10
• Button height: h-12 → h-10
• Modal width: max-w-[700px] → max-w-[600px]
• Card brand icons: h-8 w-12 → h-6 w-10
• Empty state icon: w-16 h-16 → w-12 h-12

The modal is now much more compact while maintaining readability and usability. All the information fits better within the modal constraints, making it more suitable for overlay usage.