body {
  background-color: #0d0d0d;
  color: #e0f7fa;
  font-family: 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

h1 {
  color: #00ffe0;
  margin-bottom: 10px;
}

.container {
  background-color: #1e1e1e;
  padding: 30px 40px;
  border-radius: 16px;
  box-shadow: 0 0 25px rgba(0, 255, 255, 0.2);
  width: 90%;
  max-width: 500px;
  text-align: center;
}

label {
  display: block;
  margin: 10px 0;
  font-weight: bold;
}

input[type="range"] {
  width: 100%;
}

#password {
  background-color: #000;
  color: #0f0;
  padding: 12px;
  border: 1px dashed #0f0;
  border-radius: 6px;
  margin: 15px 0;
  font-family: monospace;
}

button {
  background-color: #00ffe0;
  color: #000;
  padding: 10px 18px;
  border: none;
  border-radius: 6px;
  font-weight: bold;
  cursor: pointer;
  margin: 5px;
}

button:hover {
  background-color: #00c2b2;
}

.footer {
  font-size: 0.8rem;
  opacity: 0.5;
  margin-top: 20px;
}