* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

.container {
  max-width: 760px;
  margin: 40px auto;
  padding: 0 16px;
}

h1 {
  margin: 0 0 8px;
}

.desc {
  margin: 0 0 24px;
  color: #94a3b8;
}

.panel {
  background: #111827;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 16px;
}

label {
  display: block;
  margin: 8px 0;
  font-weight: 600;
}

input[type="file"],
input[type="text"] {
  width: 100%;
  margin-bottom: 12px;
  padding: 10px;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #0b1220;
  color: #e2e8f0;
}

button {
  width: 100%;
  padding: 12px 14px;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  color: #0b1220;
  background: #38bdf8;
  cursor: pointer;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

progress {
  width: 100%;
  height: 12px;
}

.downloads {
  display: grid;
  gap: 10px;
}

.download-link {
  display: inline-block;
  text-decoration: none;
  color: #e2e8f0;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 10px 12px;
  text-align: center;
  background: #0b1220;
}

.download-link.disabled {
  pointer-events: none;
  opacity: 0.5;
}