body { background: #f7f7f9; }
.navbar-brand { letter-spacing: -0.02em; }
.btn-warning { background: #ffc107; border-color: #ffc107; color: #111; }
.btn-warning:hover { background: #e0a800; border-color: #e0a800; color: #111; }
pre { white-space: pre-wrap; }
.display-3, .display-5, .display-6 { letter-spacing: -0.02em; }