*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--primary-dark: #0f172a;--secondary-dark: #1e293b;--text: #e2e8f0;--text-muted: #94a3b8;--green-listen: #22c55e;--blue-speak: #3b82f6;--red-end: #ef4444;--border-base: #334155}html,body,#root{height:100%}body{background:linear-gradient(135deg,var(--primary-dark) 0%,var(--secondary-dark) 100%);color:var(--text);font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}#root{display:grid;place-items:center}.voice-agent-app{width:100%;max-width:640px;min-height:60dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(1.8rem,6vw,4.5rem);padding:clamp(1.5rem,5vw,3rem) 1rem;text-align:center}h1{font-size:clamp(2.1rem,7vw,3.6rem);font-weight:700;letter-spacing:-.025em;line-height:1.05;margin-bottom:.4em}.subtitle{color:var(--text-muted);font-size:clamp(1.05rem,3.8vw,1.35rem);max-width:40ch;line-height:1.4;opacity:.92}.status-circle{width:min(48vmin,400px);aspect-ratio:1;border-radius:50%;background:#1e293b7a;border:clamp(4px,1.2vmin,8px) solid var(--border-base);display:grid;place-items:center;transition:all .45s ease;margin:.8rem 0 1.8rem;box-shadow:0 0 0 0 transparent}.status-circle.listening{border-color:var(--green-listen);box-shadow:0 0 0 16px #22c55e24;animation:pulse-listen 2.6s infinite ease-in-out}.status-circle.speaking{border-color:var(--blue-speak);box-shadow:0 0 0 16px #3b82f62e;animation:pulse-speak 2s infinite ease-in-out}.inner-circle{width:74%;height:74%;border-radius:50%;background:#0f172aeb;display:grid;place-items:center;font-size:clamp(1.2rem,4.2vw,1.8rem);font-weight:600}@keyframes pulse-speak{0%,to{transform:scale(1)}50%{transform:scale(1.06)}}.status-text{font-size:clamp(1.25rem,4.2vw,1.6rem);color:#cbd5e1;font-weight:500;min-height:1.8em;margin:.8rem 0 2.4rem}.big-btn{font-size:clamp(1.35rem,5vw,1.9rem);font-weight:600;padding:clamp(1.2rem,4.5vw,1.6rem) clamp(3.2rem,12vw,5.5rem);border:none;border-radius:9999px;cursor:pointer;transition:all .28s ease;box-shadow:0 12px 36px #00000080;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.start{background:var(--green-listen);color:#fff}.start:hover,.start:focus-visible{background:#16a34a;transform:translateY(-4px);box-shadow:0 22px 48px #22c55e66}.end{background:var(--red-end);color:#fff}.end:hover,.end:focus-visible{background:#dc2626;transform:translateY(-4px);box-shadow:0 22px 48px #ef444466}.download-section{margin-top:clamp(2.8rem,8vw,5rem)}.download-link{display:inline-flex;align-items:center;gap:.8rem;color:#60a5fa;font-size:clamp(1.1rem,3.8vw,1.3rem);text-decoration:none;padding:1rem 2.2rem;border:1.5px solid rgba(96,165,250,.4);border-radius:9999px;transition:all .26s ease}.download-link:hover,.download-link:focus-visible{background:#60a5fa29;border-color:#60a5fa;transform:translateY(-2px)}@media(max-width:480px){.voice-agent-app{gap:clamp(2rem,7vw,4rem);padding:1.5rem 1.2rem}.big-btn{min-width:260px;padding-left:4rem;padding-right:4rem}}.voice-agent-app{min-height:100vh;background:linear-gradient(135deg,#0f172a,#1e293b);color:#fff;font-family:system-ui,-apple-system,sans-serif;display:flex;justify-content:center;align-items:center;padding:1rem}.main-content{text-align:center;max-width:420px;width:100%}h1{font-size:2.2rem;margin:0 0 .6rem;font-weight:600;letter-spacing:-.02em}.subtitle{color:#94a3b8;font-size:1.05rem;margin:0 0 2.5rem}.status-circle{width:200px;height:200px;margin:0 auto 1.5rem;border-radius:50%;background:#1e293b99;border:4px solid #334155;display:flex;align-items:center;justify-content:center;transition:all .4s ease}.status-circle.listening{border-color:#22c55e;box-shadow:0 0 50px #22c55e66;animation:pulse-listen 2.2s infinite}.status-circle.speaking{border-color:#3b82f6;box-shadow:0 0 50px #3b82f673;animation:pulse-speak 1.8s infinite}.inner-circle{width:150px;height:150px;border-radius:50%;background:#0f172ad9;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:600}@keyframes pulse-listen{0%,to{transform:scale(1)}50%{transform:scale(1.08)}}@keyframes pulse-speak{0%,to{transform:scale(1)}50%{transform:scale(1.05)}}.status-text{font-size:1.25rem;color:#cbd5e1;margin:1rem 0 2.5rem;min-height:1.6em}.controls{margin:1rem 0}.big-btn{font-size:1.4rem;padding:1.2rem 4rem;border:none;border-radius:9999px;font-weight:600;cursor:pointer;transition:all .22s;box-shadow:0 10px 25px #0006}.start{background:#22c55e;color:#fff}.start:hover{background:#16a34a;transform:translateY(-3px);box-shadow:0 15px 35px #22c55e59}.end{background:#ef4444;color:#fff}.end:hover{background:#dc2626;transform:translateY(-3px);box-shadow:0 15px 35px #ef444459}.download-section{margin-top:2.5rem}.download-link{color:#60a5fa;text-decoration:none;font-size:1.05rem;padding:.7rem 1.6rem;border:1px solid #60a5fa44;border-radius:9999px;transition:all .2s}.download-link:hover{background:#60a5fa22;border-color:#60a5fa88}