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- New color palette: amber/gold accent, deep black backgrounds - JetBrains Mono for headings, labels, and system text - 2px borders, 2px border-radius (brutalist) - Animated dot-grid background canvas with random scanline artifacts - CRT scanline overlay + vignette effect - Backdrop-filter blur on panels for glass depth - Pulsing status dot, amber glow effects - Login page: full retro treatment with sys-tag footer - All functional elements preserved Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>