:root{--tc-font-system:-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--tc-font-ui:var(--tc-font-system);--tc-font-mono:"JetBrains Mono", "Cascadia Code", "Fira Code", "Consolas", monospace;font-family:var(--tc-font-ui);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#1a1a1a;--tc-bg:#f8f7f4;--tc-surface:#fff;--tc-navy:#1b2a4a;--tc-teal:#0d9488;--tc-amber:#d97706;--tc-border:#e5e2dc;--tc-muted:#6b7280;--tc-text:#1b2a4a;--tc-surface-muted:#f3f4f6;--tc-surface-error:#fdecea;--tc-text-error:#c62828;--tc-input-placeholder:#aaa;--tc-success:#16a34a;--tc-error:#dc2626;background:#fafafa}@media (prefers-color-scheme:dark){:root{color:#f3f4f6;--tc-bg:#111827;--tc-surface:#1f2937;--tc-navy:#0f172a;--tc-teal:#14b8a6;--tc-amber:#f59e0b;--tc-border:#374151;--tc-muted:#9ca3af;--tc-text:#f3f4f6;--tc-surface-muted:#374151;--tc-surface-error:#450a0a;--tc-text-error:#fca5a5;--tc-input-placeholder:#6b7280;--tc-success:#22c55e;--tc-error:#ef4444;background:#111827}::-webkit-scrollbar-thumb{background:#4b5563}::-webkit-scrollbar-thumb:hover{background:#6b7280}}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{width:100%;height:100%}button,input,textarea{font-family:inherit}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#ccc;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#999}@keyframes tc-pulse{0%,to{opacity:.35}50%{opacity:.18}}@keyframes tc-timer-pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.55;transform:scale(.88)}}@keyframes tc-focus-pulse{0%{box-shadow:0 0 #0d9488a6}50%{box-shadow:0 0 0 8px #0d94884d}to{box-shadow:0 0 #0d948800}}.tc-focus-pulse{animation:1.5s ease-out tc-focus-pulse}