Header 1 Test: Greek + Cyrillic + bold/italic/underline
Header 2 Test: nested strong/em + diacritics overload
Header 3 Test: Cyrillic-leading + Greek-ending + monospace span
Header 4 Test: LTR line with embedded RTL Arabic fragment
Header 5 Test: forced fallback fonts (fake font then real)
Header 6 Test: long continuous string + exotic unicode stress
Paragraph Test 1: RTL override + mixing Greek/Cyrillic + underline + bold/italic
אבגד شسيتث συνεχίζει пример δοκιμή текст και mixed-script rendering.
Paragraph Test 2: reduced line-height + monospace span
Это είναι a paragraph with restricted line height and a monospace block to stress alignment.
Paragraph Test 3: extreme diacritics + combining characters + gibberish
Λόрῐᾶм тͥеͤкͣсͬтͭ σᾰͫμπλε̥̆ δοκιμή̵͕͔͒