:root{--color-canvas:#f0eee9;--color-ai-bubble:#c8dce8;--color-user-bubble:#dde0e1;--color-alert:#f2d6c9;--color-success:#cbe1c8;--color-text-primary:#2e2c2a;--color-text-secondary:#6b6460;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-mono:"SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--radius-xl:32px;--glass-bg:#ffffff73;--glass-border:#fff9;--shadow-soft:0 4px 24px #0000000f, 0 1px 4px #0000000a;--shadow-float:0 8px 40px #0000001a, 0 2px 8px #0000000f;--transition-base:.2s ease;--transition-smooth:.35s cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{background-color:var(--color-canvas);color:var(--color-text-primary);font-family:var(--font-sans);-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.6}