body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #0d0d0d, #330000);
  color: #ff4d4d;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 20px;
  text-align: center;
}

.container {
  background-color: rgba(0, 0, 0, 0.85);
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 0 30px red;
  max-width: 500px;
  width: 100%;
}

h1 {
  margin-bottom: 10px;
  font-size: 2rem;
}

.tagline {
  font-size: 0.95rem;
  color: #ff9999;
  margin-bottom: 20px;
}

input, button {
  padding: 12px;
  width: 90%;
  margin: 10px auto;
  border-radius: 8px;
  border: none;
  font-size: 1rem;
}

input {
  background-color: #222;
  color: #fff;
}

button {
  background-color: red;
  color: white;
  cursor: pointer;
  transition: background 0.3s ease;
}

button:hover {
  background-color: darkred;
}

.hidden {
  display: none;
}

#progress-bar-container {
  width: 100%;
  height: 10px;
  background-color: #330000;
  margin: 20px 0;
  border-radius: 5px;
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  background-color: #ff4d4d;
  width: 0%;
  transition: width 0.4s ease-in-out;
}