Terapkan warna structural dan interactive yang tepat:

• .card (structural) → background #F9FAFB, border 1px solid #E5E7EB
• button (interactive) → background #2563EB, color white
• a (interactive) → color #2563EB

Hint

• Warna structural: background, border. Warna interactive: button, link.
• Structural muted (gray), interactive bold (blue, green).
• .card { background: #F9FAFB; border: 1px solid #E5E7EB; } .btn { background: #2563EB; }