Text field patterns

Text fields are essential input controls that let users enter and edit text within Apple's interface. Key guidelines from Apple HIG:

• Visual structure: Maintains clear boundaries between input area and surrounding content
• Placeholder text: Provides helpful context that naturally disappears during typing
• Input feedback: Shows users where they are through cursors and highlights
• State changes: Clearly indicates focus, selection, and validation states
• Field types: Adapts layout and behavior for single-line, multi-line, or specialized input
• Input support: Adds helpful features when needed — a clear button (×) to remove all text, auto-correction suggestions, and keyboard shortcuts for faster editing