body {
  background: radial-gradient(ellipse at center, #000 0%, #111 100%);
  color: #00ffcc;
  font-family: 'Orbitron', sans-serif;
  padding: 0;
  margin: 0;
}
.container {
  max-width: 700px;
  margin: 40px auto;
  padding: 20px;
  background: #1b1b1b;
  border-radius: 15px;
  box-shadow: 0 0 25px #00ffcc44;
  text-align: center;
}
h1 {
  margin-bottom: 20px;
  font-size: 28px;
}
form {
  margin-bottom: 20px;
}
input[type="file"] {
  padding: 10px;
  background: #222;
  border: 1px solid #00ffcc55;
  color: #00ffcc;
  border-radius: 8px;
}
button {
  padding: 10px 20px;
  background: #00ffcc;
  color: #000;
  font-weight: bold;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.3s;
}
button:hover {
  background: #00ffaa;
}
.barra {
  width: 100%;
  background: #222;
  border: 1px solid #00ffcc44;
  border-radius: 5px;
  overflow: hidden;
  margin: 20px 0;
  height: 25px;
}
.barra-interna {
  background: linear-gradient(90deg, #00ffcc, #00ffaa);
  height: 100%;
  text-align: center;
  color: #000;
  font-weight: bold;
  line-height: 25px;
  transition: width 0.3s ease-in-out;
}
.log {
  background: #000;
  text-align: left;
  padding: 10px;
  height: 200px;
  overflow-y: auto;
  font-size: 14px;
  border: 1px solid #00ffcc33;
  border-radius: 5px;
}
#download {
  margin-top: 20px;
}
#download a {
  color: #00ffcc;
  text-decoration: none;
  font-weight: bold;
}