body { font-family: system-ui, sans-serif; max-width: 640px; margin: 2rem auto; padding: 0 1rem; }
#note-form { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1.5rem; }
#note-list { list-style: none; padding: 0; }
#note-list li { border: 1px solid #ddd; border-radius: 6px; padding: 0.75rem; margin-bottom: 0.5rem; }