:root{--emerald: #0f6b4f;--emerald-deep: #0a3d2e;--gold: #c8a24a;--ink: #10221c;--bg: #f4f7f5;--card: #ffffff;--muted: #5c6b64;--radius: 14px;--shadow: 0 6px 24px rgba(10,61,46,.1)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Noto Sans Tamil,sans-serif;background:var(--bg);color:var(--ink)}.page{max-width:860px;margin:0 auto;padding:0 18px 40px;min-height:100%;display:flex;flex-direction:column}.page.ta{font-family:Noto Sans Tamil,system-ui,sans-serif}.banner{background:linear-gradient(90deg,var(--emerald-deep),var(--emerald));color:#fff;text-align:center;font-size:14px;padding:8px 14px;border-radius:0 0 10px 10px}.banner strong{color:var(--gold)}.nav{display:flex;align-items:center;justify-content:space-between;padding:20px 4px 8px;gap:10px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--emerald-deep)}.nav-right{display:flex;align-items:center;gap:14px}.by{color:var(--muted);font-size:13px}.langtoggle{display:inline-flex;border:1px solid #cdd9d3;border-radius:999px;overflow:hidden}.langtoggle button{border:none;background:#fff;padding:6px 12px;font-size:13px;cursor:pointer;color:var(--muted)}.langtoggle button.on{background:var(--emerald-deep);color:#fff;font-weight:700}.hero{padding:18px 4px 6px}.hero h1{font-size:30px;margin:8px 0;color:var(--emerald-deep)}.tagline{color:var(--muted);font-size:16px;line-height:1.55;max-width:62ch}.studio{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-top:14px}.controls{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.ctrl{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--muted)}.ctrl select,.ctrl input{padding:10px 12px;border:1px solid #cdd9d3;border-radius:10px;font-size:15px;color:var(--ink);background:#fff;outline:none}.ctrl select:focus,.ctrl input:focus{border-color:var(--emerald);box-shadow:0 0 0 3px #0f6b4f1f}.idearow{display:flex;gap:10px;align-items:flex-end;margin-top:12px}.ctrl.idea{flex:1}.mic{width:46px;height:46px;border-radius:12px;border:1px solid #cdd9d3;background:#fff;font-size:18px;cursor:pointer}.mic:hover{border-color:var(--emerald)}.go{width:100%;margin-top:14px;background:var(--emerald-deep);color:#fff;border:none;border-radius:10px;padding:13px;font-weight:700;font-size:15px;cursor:pointer}.go:hover:not(:disabled){background:var(--emerald)}.go:disabled{opacity:.55;cursor:not-allowed}.hint{margin:8px 2px 0;font-size:13px}.chat{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);margin-top:14px;overflow:hidden;flex:1}.stream{padding:18px;min-height:220px;max-height:46vh;overflow-y:auto}.empty{text-align:center;padding:40px 10px}.muted{color:var(--muted)}.bubble{max-width:90%;padding:10px 14px;border-radius:12px;margin:8px 0;line-height:1.55}.bubble p{margin:2px 0}.bubble.user{margin-left:auto;background:var(--emerald);color:#fff;border-bottom-right-radius:4px}.bubble.kathai{background:#eef3f0;color:var(--ink);border:1px solid #dce7e1;border-bottom-left-radius:4px}.voicebar{display:flex;gap:8px;margin-top:8px}.voicebar button{background:#fff;border:1px solid #cdd9d3;border-radius:8px;padding:4px 10px;font-size:12px;cursor:pointer;color:var(--emerald-deep)}.voicebar button:hover{border-color:var(--emerald)}.foot{display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px;padding:18px 4px 0;color:var(--muted);font-size:13px}@media (max-width: 640px){.controls{grid-template-columns:repeat(2,1fr)}.hero h1{font-size:24px}.by{display:none}}