.ofi-container {
  font-family: 'Poppins', sans-serif;
  background: radial-gradient(circle at center, #0a0f2c, #020414);
  color: #dce3ff;
  padding: 40px;
  border-radius: 20px;
  text-align: center;
  max-width: 800px;
  margin: 40px auto;
  box-shadow: 0 0 30px rgba(0,255,255,0.2);
}
.ofi-title {
  font-size: 2em;
  color: #6ae8ff;
}
.ofi-subtitle {
  font-size: 1.2em;
  margin-bottom: 20px;
  opacity: 0.8;
}
.ofi-btn {
  background: #0ef;
  color: #000;
  border: none;
  padding: 15px 30px;
  border-radius: 50px;
  font-size: 1.2em;
  cursor: pointer;
  transition: 0.3s;
}
.ofi-btn:hover {
  background: #09c;
}
.hidden { display: none; }
.ofi-results {
  margin-top: 30px;
  animation: fadeIn 1.5s ease;
}
.ofi-bar {
  height: 20px;
  border-radius: 10px;
  background: #122;
  margin: 10px 0;
  position: relative;
}
.ofi-bar-fill {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, #00f7ff, #0077ff);
  transition: width 1s ease-out;
}
@keyframes fadeIn {
  from {{ opacity: 0; transform: translateY(20px); }}
  to {{ opacity: 1; transform: translateY(0); }}
}