*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--bg: #0f1117;--surface: #1a1d27;--surface2: #252836;--accent: #6c63ff;--accent-g: linear-gradient(135deg, #6c63ff, #4ecdc4);--text: #e8e8f0;--text-dim: #8b8da3;--user-bg: #2a2d3e;--asst-bg: #1e2230;--danger: #ff6b6b;--radius: 16px;--font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif}html{height:100%}body{font-family:var(--font);background:var(--bg);color:var(--text);height:100%;overflow:hidden}.app{display:flex;flex-direction:column;height:100vh;max-width:640px;margin:0 auto}.login-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg);display:flex;align-items:center;justify-content:center;z-index:100}.login-overlay.hidden{display:none}.login-card{background:var(--surface);border:1px solid var(--surface2);border-radius:20px;padding:40px 36px;width:100%;max-width:380px;text-align:center}.login-logo{width:56px;height:56px;border-radius:50%;background:var(--accent-g);color:#fff;font-size:1.4rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 16px}.login-card h2{font-size:1.4rem;font-weight:700;background:var(--accent-g);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-subtitle{font-size:.82rem;color:var(--text-dim);margin:4px 0 24px}.input-group{text-align:left;margin-bottom:16px}.input-group label{display:block;font-size:.78rem;color:var(--text-dim);margin-bottom:6px}.input-group input{width:100%;background:var(--bg);border:1px solid var(--surface2);border-radius:10px;padding:11px 14px;color:var(--text);font-family:var(--font);font-size:.9rem;outline:none;transition:border-color .2s}.input-group input:focus{border-color:var(--accent)}.login-error{color:var(--danger);font-size:.8rem;min-height:1.2em;margin-bottom:8px}.login-btn{width:100%;padding:12px;border:none;border-radius:10px;background:var(--accent-g);color:#fff;font-family:var(--font);font-size:.95rem;font-weight:600;cursor:pointer;transition:transform .1s,box-shadow .2s}.login-btn:hover{transform:scale(1.01);box-shadow:0 4px 20px #6c63ff4d}.login-btn:active{transform:scale(.98)}.login-btn:disabled{opacity:.6;cursor:not-allowed}header{text-align:center;padding:14px 16px 4px;flex-shrink:0}.header-row{display:flex;align-items:center;justify-content:space-between}.header-row>div:first-child{text-align:left}header h1{font-size:1.4rem;font-weight:700;background:var(--accent-g);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.tamil{font-weight:400;opacity:.8}.subtitle{font-size:.75rem;color:var(--text-dim);margin-top:1px}.header-actions{display:flex;align-items:center;gap:12px}.header-link{display:flex;align-items:center;gap:4px;color:var(--text-dim);text-decoration:none;font-size:.78rem;transition:color .15s}.header-link:hover{color:var(--accent)}.logout-btn{background:var(--surface2);border:none;border-radius:8px;padding:6px 8px;color:var(--text-dim);cursor:pointer;display:flex;align-items:center;transition:all .15s}.logout-btn:hover{background:var(--danger);color:#fff}.user-greeting{font-size:.75rem;color:var(--text-dim);text-align:left;margin-top:2px}.inline-help-link{color:var(--accent);text-decoration:none;font-size:.82rem}.inline-help-link:hover{text-decoration:underline}.conversation{flex:1;overflow-y:auto;padding:12px 16px;display:flex;flex-direction:column;gap:16px;scroll-behavior:smooth}.conversation::-webkit-scrollbar{width:4px}.conversation::-webkit-scrollbar-thumb{background:var(--surface2);border-radius:4px}.msg-row{display:flex;gap:10px;animation:fadeUp .3s ease}.msg-row.user{flex-direction:row-reverse}@keyframes fadeUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.avatar{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:600;flex-shrink:0;margin-top:2px}.assistant-avatar{background:var(--accent-g);color:#fff}.user-avatar{background:var(--surface2);color:var(--text-dim)}.bubble{padding:12px 16px;border-radius:var(--radius);line-height:1.55;font-size:.92rem;max-width:80%;word-wrap:break-word}.bubble.assistant{background:var(--asst-bg);border-bottom-left-radius:4px}.bubble.user{background:var(--user-bg);border-bottom-right-radius:4px}.bubble.error{border-left:3px solid var(--danger)}.welcome-message{display:flex;gap:10px}.controls{flex-shrink:0;padding:12px 16px 4px;display:flex;flex-direction:column;align-items:center;gap:12px}.status-bar{text-align:center;min-height:20px}#statusText{font-size:.78rem;color:var(--text-dim);transition:color .2s}.live-transcript{display:block;font-size:.82rem;color:var(--text);font-style:italic;min-height:1.2em;margin-top:2px}.mic-btn{position:relative;width:72px;height:72px;border-radius:50%;border:none;background:var(--accent-g);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .15s,box-shadow .2s;z-index:1}.mic-btn:hover{transform:scale(1.05);box-shadow:0 0 30px #6c63ff66}.mic-btn:active{transform:scale(.97)}.mic-btn.listening{background:var(--danger);box-shadow:0 0 40px #ff6b6b66}.pulse-ring{position:absolute;width:100%;height:100%;border-radius:50%;border:2px solid var(--accent);opacity:0;pointer-events:none}.mic-btn.listening .pulse-ring{animation:pulse 1.5s ease-out infinite;border-color:var(--danger)}.mic-btn.listening .pulse-ring.delay{animation-delay:.5s}@keyframes pulse{0%{transform:scale(1);opacity:.6}to{transform:scale(2);opacity:0}}.mic-btn.speaking{background:linear-gradient(135deg,#4ecdc4,#44bd9e)}.quick-actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}.chip{background:var(--surface2);border:1px solid transparent;color:var(--text-dim);padding:6px 14px;border-radius:20px;font-size:.78rem;font-family:var(--font);cursor:pointer;transition:all .15s}.chip:hover{border-color:var(--accent);color:var(--text);background:var(--surface)}.text-input-row{display:flex;gap:8px;padding:8px 16px 20px;flex-shrink:0}#textInput{flex:1;background:var(--surface);border:1px solid var(--surface2);border-radius:12px;padding:12px 16px;color:var(--text);font-family:var(--font);font-size:.9rem;outline:none;transition:border-color .2s}#textInput:focus{border-color:var(--accent)}#textInput::placeholder{color:var(--text-dim)}.send-btn{width:44px;height:44px;border-radius:12px;border:none;background:var(--accent-g);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .1s}.send-btn:hover{transform:scale(1.05)}.send-btn:active{transform:scale(.95)}@media(max-width:480px){header h1{font-size:1.3rem}.mic-btn{width:64px;height:64px}.bubble{font-size:.85rem}}