body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #111827;
  color: #f9fafb;
}

.app {
  max-width: 700px;
  margin: 60px auto;
  padding: 24px;
}

h1 {
  margin-bottom: 24px;
}

.panel {
  background: #1f2937;
  border: 1px solid #374151;
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
}

input {
  width: 100%;
  box-sizing: border-box;
  padding: 14px;
  font-size: 1rem;
  border-radius: 8px;
  border: 1px solid #4b5563;
  background: #0f172a;
  color: #f9fafb;
}

.subtitles {
  min-height: 120px;
  padding: 14px;
  border-radius: 8px;
  border: 1px solid #4b5563;
  background: #0f172a;
  line-height: 1.5;
  margin-bottom: 12px;
  white-space: pre-wrap;
}

button {
  padding: 12px 16px;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
}

.status {
  color: #d1d5db;
}

.sliderContainer {
  margin-bottom: 16px;
}

.sliderContainer span {
  display: block;
  font-size: 0.8rem;
  color: #9ca3af;
  margin-bottom: 4px;
}