body { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f4f6f8; margin: 0; }
.container { max-width: 860px; margin: 48px auto; padding: 0 20px; }
.card { background: white; border-radius: 18px; box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12); padding: 28px; }
h1 { margin-top: 0; }
.controls { display: flex; gap: 12px; margin: 24px 0; }
button { border: 0; border-radius: 10px; padding: 12px 16px; cursor: pointer; background: #111827; color: white; font-weight: 700; }
button:disabled { background: #9ca3af; cursor: not-allowed; }
.secondary-button { background: #e5e7eb; color: #111827; }
form { display: flex; gap: 12px; margin-bottom: 20px; }
input { flex: 1; border: 1px solid #d1d5db; border-radius: 10px; padding: 12px; font-size: 16px; }
.status { padding: 12px; background: #eef2ff; border-radius: 10px; margin-bottom: 16px; }
.transcript, .answer { padding: 12px 0; border-top: 1px solid #e5e7eb; }
audio { width: 100%; margin-top: 20px; }

.tester-guide { border: 1px solid #e5e7eb; border-radius: 14px; padding: 18px; margin: 22px 0 12px; background: #f9fafb; }
.guide-header { display: flex; justify-content: space-between; gap: 16px; align-items: flex-start; }
.guide-header h2 { margin: 0 0 6px; font-size: 20px; }
.guide-header p { margin: 0; color: #4b5563; }
.examples-panel { margin-top: 16px; display: grid; gap: 14px; }
.example-group h3 { margin: 0 0 8px; font-size: 15px; color: #374151; }
.example-list { display: flex; flex-wrap: wrap; gap: 8px; }
.example-chip { background: #ffffff; color: #111827; border: 1px solid #cbd5e1; padding: 9px 11px; border-radius: 999px; font-weight: 600; text-align: left; }
.example-chip:hover, .example-chip:focus { background: #eef2ff; border-color: #818cf8; outline: none; }
.voice-tip { background: #fffbeb; border: 1px solid #fde68a; border-radius: 10px; padding: 12px; color: #78350f; }
.voice-tip span { font-weight: 700; }

@media (max-width: 720px) {
  .container { margin: 18px auto; padding: 0 10px; }
  .card { padding: 18px; }
  .guide-header, form, .controls { flex-direction: column; }
  button, input { width: 100%; box-sizing: border-box; }
}