body {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  color: white;
}

.background {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, #ff6a00, #ee0979);
  z-index: -1;
}

#particles {
  position: absolute;
  width: 100%;
  height: 100%;
}

.container {
  position: relative;
  max-width: 500px;
  margin: 60px auto;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 30px;
  box-shadow: 0 0 20px rgba(0,0,0,0.3);
  text-align: center;
}

input {
  width: 90%;
  padding: 10px;
  margin: 10px 0;
  border: none;
  border-radius: 10px;
}

button {
  margin-top: 15px;
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  background: #ffb703;
  color: #0d1b2a;
  font-weight: bold;
  cursor: pointer;
}

button:hover {
  background: #ff8800;
}

#chart {
  margin-top: 20px;
}