body { font-family: system-ui, sans-serif; max-width: 600px; margin: 0 auto; padding: 20px; background: #111; color: #eee; }
h1 { text-align: center; color: #6c5ce7; }
#models { display: flex; gap: 8px; justify-content: center; margin: 16px 0; }
.model-btn { padding: 8px 16px; border: 1px solid #6c5ce7; background: transparent; color: #6c5ce7; border-radius: 6px; cursor: pointer; }
.model-btn.active { background: #6c5ce7; color: #fff; }
#chat { border: 1px solid #333; border-radius: 8px; padding: 16px; min-height: 300px; max-height: 400px; overflow-y: auto; margin: 16px 0; }
.user { color: #00cec9; margin: 8px 0; }
.bot { color: #a29bfe; margin: 8px 0; }
#recorder { text-align: center; }
#mic-btn { padding: 12px 32px; background: #e84393; color: #fff; border: none; border-radius: 8px; font-size: 16px; cursor: pointer; }
#status { display: inline-block; margin-left: 12px; color: #999; }