:root{--color-primary:#4f46e5;--color-primary-light:#818cf8;--color-success:#22c55e;--color-warning:#f97316;--color-error:#ef4444;--color-gray-50:#f8fafc;--color-gray-100:#f1f5f9;--color-gray-200:#e2e8f0;--color-gray-700:#334155;--color-gray-800:#1e293b;--color-gray-900:#0f172a;--gradient-primary:linear-gradient(135deg,#667eea 0%,#764ba2 100%);--gradient-audio:linear-gradient(to top,#4facfe 0%,#00f2fe 100%);--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a;--shadow-xl:0 20px 25px -5px #0000001a;--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--radius-full:9999px;--font-sans:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif}*,:before,:after{box-sizing:border-box}*{margin:0;padding:0}html,body{height:100%}body{font-family:var(--font-sans);-webkit-font-smoothing:antialiased;background:var(--gradient-primary);min-height:100vh;color:var(--color-gray-800);line-height:1.6}.main-container{justify-content:center;align-items:center;min-height:100vh;padding:2rem;display:flex}.live-talk-container{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);background:#fffffff2;width:100%;max-width:500px;animation:.5s ease-out fadeIn;overflow:hidden}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.live-talk-header{background:var(--gradient-primary);color:#fff;text-align:center;padding:1.5rem 2rem}.live-talk-header h1{margin-bottom:.5rem;font-size:1.5rem;font-weight:700}.state-indicator{border-radius:var(--radius-full);align-items:center;gap:.5rem;padding:.5rem 1rem;font-size:.875rem;font-weight:600;transition:all .3s;display:inline-flex}.state-idle{background:var(--color-gray-200);color:var(--color-gray-700)}.state-connecting{color:#92400e;background:#fef3c7}.state-listening{color:#1e40af;background:#dbeafe;animation:2s infinite pulse}.state-processing{color:#9a3412;background:#ffedd5}.state-speaking{color:#166534;background:#dcfce7;animation:1.5s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.visualizer-container{margin-block:2rem}.audio-visualizer{background:var(--color-gray-900);border-radius:var(--radius-md);justify-content:center;align-items:flex-end;gap:3px;height:100px;margin:0 1.5rem;padding:1rem;display:flex}.bar{background:var(--gradient-audio);border-radius:3px;width:6px;min-height:4px;transition:height .1s}.bar.active{animation:.3s visualizerPulse}@keyframes visualizerPulse{0%,to{transform:scaleY(1)}50%{transform:scaleY(1.2)}}.transcript{background:var(--color-gray-50);border-radius:var(--radius-md);border:1px solid var(--color-gray-200);max-height:250px;margin:1.5rem;padding:1rem;overflow-y:auto}.transcript-entry{border-radius:var(--radius-sm);gap:.75rem;margin-bottom:.75rem;padding:.75rem;animation:.3s slideIn;display:flex}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.transcript-entry.user{background:#dbeafe}.transcript-entry.agent{background:#dcfce7}.speaker-icon{font-size:1.25rem}.transcript-text{flex:1;font-size:.9375rem}.transcript-empty{text-align:center;color:var(--color-gray-700);padding:2rem;font-style:italic}.live-talk-footer{border-top:1px solid var(--color-gray-200);padding:1.5rem 2rem}.btn{border-radius:var(--radius-md);cursor:pointer;border:none;justify-content:center;align-items:center;gap:.5rem;width:100%;padding:1rem;font-size:1.125rem;font-weight:600;transition:all .2s;display:flex}.btn:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.btn:active{transform:translateY(0)}.btn-start{background:var(--color-success);color:#fff}.btn-stop{background:var(--color-error);color:#fff}.error-message{color:var(--color-error);border-radius:var(--radius-sm);text-align:center;background:#fef2f2;margin-top:1rem;padding:.75rem;font-size:.875rem}@media (max-width:640px){.main-container{padding:1rem}.live-talk-container{border-radius:var(--radius-md)}.live-talk-header{padding:1rem 1.5rem}.audio-visualizer{margin:0 1rem}.transcript{margin:1rem}}