static/style.css

body {
  background: linear-gradient(135deg,#0b1020,#0a0f1a);
  color: #e6edf3;
}
.btn-gradient {
  background: linear-gradient(135deg, #8b5cf6, #22d3ee);
  border: none;
  color: white;
}
.btn-gradient:hover { filter: brightness(1.1); }