:root{--bg:#fff;--panel:#fff;--soft:#f5f7fb;--border:#e4e7ec;--text:#202124;--muted:#68707d;--accent:#1a73e8;--user:#edf3ff;--shadow:0 14px 45px rgba(0,0,0,.09)}*{box-sizing:border-box}html,body{height:100%;margin:0}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI","Noto Sans Devanagari",Arial,sans-serif;background:var(--bg);color:var(--text)}button,textarea,input,select{font:inherit}.app-shell{min-height:100dvh;display:flex;flex-direction:column}.topbar{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid var(--border);position:sticky;top:0;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(16px);z-index:10}.brand{display:flex;align-items:center;gap:10px;border:0;background:transparent;color:var(--text);font-size:19px;font-weight:700;cursor:pointer}.brand-mark,.hero-orb{display:grid;place-items:center;background:linear-gradient(135deg,#4285f4,#9333ea);color:#fff}.brand-mark{width:32px;height:32px;border-radius:10px}.top-actions{display:flex;gap:4px}.icon-btn,.round-btn,.send-btn{border:0;cursor:pointer;display:grid;place-items:center}.icon-btn{width:40px;height:40px;border-radius:50%;background:transparent;color:var(--text);font-size:21px}.icon-btn:hover,.round-btn:hover{background:var(--soft)}.chat-main{width:min(920px,100%);margin:auto;flex:1;padding:24px 18px 160px}.welcome{min-height:58vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.hero-orb{width:78px;height:78px;border-radius:25px;font-size:36px;box-shadow:0 18px 42px rgba(66,133,244,.24);margin-bottom:18px}.welcome h1{font-size:clamp(28px,6vw,44px);letter-spacing:-1.5px;margin:0 0 12px}.welcome p{max-width:650px;color:var(--muted);line-height:1.6}.suggestions{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;width:min(650px,100%);margin-top:26px}.suggestion{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:14px;text-align:left;color:var(--text);cursor:pointer}.suggestion:hover{border-color:#b8cdf5}.chat-box{display:flex;flex-direction:column;gap:18px}.message-row{display:flex;gap:12px;align-items:flex-start}.message-row.user{justify-content:flex-end}.avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--soft);flex:0 0 auto}.bubble{max-width:min(760px,88%);padding:13px 16px;border-radius:20px;line-height:1.65;white-space:pre-wrap;overflow-wrap:anywhere}.ai .bubble{background:transparent;padding:4px 0}.user .bubble{background:var(--user);border-radius:20px 20px 6px 20px}.attachment-card{margin-top:8px;border:1px solid var(--border);border-radius:14px;padding:8px;display:flex;gap:10px;align-items:center}.attachment-thumb{width:52px;height:52px;border-radius:10px;object-fit:cover}.file-icon{width:52px;height:52px;border-radius:10px;background:var(--soft);display:grid;place-items:center;font-size:24px}.file-name{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}.composer-wrap{position:fixed;left:0;right:0;bottom:0;padding:10px max(14px,env(safe-area-inset-right)) calc(10px + env(safe-area-inset-bottom)) max(14px,env(safe-area-inset-left));background:linear-gradient(to top,var(--bg) 82%,transparent);z-index:9}.composer,.file-preview{width:min(920px,100%);margin:auto}.composer{display:flex;align-items:flex-end;gap:8px;background:var(--panel);border:1px solid var(--border);border-radius:28px;padding:8px;box-shadow:var(--shadow)}.input-wrap{flex:1;min-width:0}.input-wrap textarea{width:100%;border:0;outline:0;resize:none;max-height:180px;padding:10px 4px;background:transparent;color:var(--text);line-height:1.45}.round-btn{width:42px;height:42px;border-radius:50%;background:transparent;color:var(--text);font-size:25px}.send-btn{width:42px;height:42px;border-radius:50%;background:var(--accent);color:#fff;font-size:20px;opacity:.45}.send-btn.ready{opacity:1}.file-preview{display:flex;gap:8px;overflow:auto;padding:0 4px 8px}.preview-item{display:flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--panel);padding:6px 10px;border-radius:12px;min-width:150px}.preview-item img{width:36px;height:36px;border-radius:8px;object-fit:cover}.remove-file{border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:18px}.hidden{display:none}.disclaimer{text-align:center;color:var(--muted);font-size:11px;margin:8px 0 0}.dark{--bg:#131416;--panel:#1d1f22;--soft:#292c31;--border:#383c42;--text:#e8eaed;--muted:#b2b6bd;--user:#243a5e}.admin-overlay{position:fixed;inset:0;background:rgba(0,0,0,.55);backdrop-filter:blur(8px);z-index:50;display:grid;place-items:center;padding:18px}.admin-panel{width:min(760px,100%);max-height:min(90dvh,850px);overflow:auto;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:24px;box-shadow:0 30px 100px rgba(0,0,0,.3);padding:22px}.admin-head{display:flex;justify-content:space-between;align-items:flex-start}.eyebrow{font-size:10px;letter-spacing:1.5px;color:var(--accent);font-weight:800}.admin-head h2{margin:5px 0 18px;font-size:28px}.admin-tabs{display:flex;gap:6px;border-bottom:1px solid var(--border);overflow:auto}.tab{border:0;background:transparent;color:var(--muted);padding:12px 14px;cursor:pointer;border-bottom:2px solid transparent}.tab.active{color:var(--text);border-color:var(--accent)}.tab-page{display:none;padding:20px 0}.tab-page.active{display:block}.tab-page label{display:block;font-size:13px;font-weight:650;margin:0 0 15px}.tab-page input,.tab-page textarea,.tab-page select{width:100%;margin-top:7px;border:1px solid var(--border);background:var(--soft);color:var(--text);border-radius:12px;padding:11px 12px;outline:0}.tab-page textarea{min-height:90px;resize:vertical}.locked{padding:15px;border:1px solid var(--border);background:var(--soft);border-radius:14px;margin-bottom:15px;display:flex;flex-direction:column;gap:5px}.locked span,.hint{color:var(--muted);font-size:12px;line-height:1.5}.admin-actions{display:flex;justify-content:flex-end;gap:8px;border-top:1px solid var(--border);padding-top:15px}.primary,.secondary{border:0;border-radius:12px;padding:11px 16px;cursor:pointer}.primary{background:var(--accent);color:#fff}.secondary{background:var(--soft);color:var(--text)}.save-status{font-size:12px;color:var(--accent);min-height:18px;margin-top:8px;text-align:right}@media(max-width:640px){.topbar{height:58px;padding:0 10px}.chat-main{padding:14px 12px 150px}.suggestions{grid-template-columns:1fr}.bubble{max-width:92%}.welcome h1{font-size:30px}.composer-wrap{padding-left:8px;padding-right:8px}.round-btn,.send-btn{width:40px;height:40px}.admin-panel{padding:16px;border-radius:20px}}
.chat-main{overflow:visible}.chat-box{overflow:visible}.message-tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}.message-tools button{border:1px solid var(--border);background:var(--soft);color:var(--muted);border-radius:999px;padding:5px 9px;font-size:11px;cursor:pointer}.sources{display:flex;gap:6px;flex-wrap:wrap}.sources a{font-size:11px;text-decoration:none;border:1px solid var(--border);background:var(--soft);color:var(--accent);border-radius:999px;padding:5px 9px;max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.recording{background:#ffebe9!important;color:#c5221f!important}.voice-overlay{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.58);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(16px,env(safe-area-inset-left));touch-action:none;overscroll-behavior:contain}.voice-card{width:min(420px,100%);max-height:calc(100dvh - 32px);overflow:auto;text-align:center;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:28px;padding:clamp(22px,6vw,34px);box-shadow:0 30px 100px rgba(0,0,0,.3);touch-action:auto;overscroll-behavior:contain}.voice-orb{width:88px;height:88px;margin:0 auto 18px;border-radius:50%;display:grid;place-items:center;background:var(--accent);color:#fff;font-size:30px;box-shadow:0 0 0 14px color-mix(in srgb,var(--accent) 15%,transparent),0 0 0 28px color-mix(in srgb,var(--accent) 7%,transparent);animation:pulse 1.5s infinite}.voice-card h2{margin:0 0 8px}.voice-card p{color:var(--muted);min-height:20px}.voice-actions{display:flex;justify-content:center;gap:10px;margin-top:20px;position:relative;z-index:2}.voice-actions button{min-height:44px;min-width:120px;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.voice-actions button:active{transform:scale(.98)}.voice-overlay.hidden,.admin-overlay.hidden{display:none!important}.hidden{display:none!important}@media(max-width:480px){.voice-card{border-radius:24px;padding:22px 16px}.voice-actions{flex-direction:column}.voice-actions button{width:100%}.voice-orb{width:76px;height:76px;margin-bottom:14px}}@keyframes pulse{50%{transform:scale(1.06)}}

html{scroll-behavior:smooth;overscroll-behavior-y:none} body{overscroll-behavior-y:none;-webkit-tap-highlight-color:transparent} button{touch-action:manipulation;-webkit-tap-highlight-color:transparent} textarea{font-size:16px}
.admin-auth,.admin-page{min-height:100dvh;display:grid;place-items:center;padding:18px;background:var(--bg);color:var(--text)}.auth-card{width:min(420px,100%);background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.auth-mark{margin-bottom:16px}.auth-card h1{margin:0 0 8px}.auth-card p{color:var(--muted);line-height:1.5}.auth-card label{display:block;font-size:13px;font-weight:650;margin:20px 0}.auth-card input{width:100%;margin-top:8px;border:1px solid var(--border);background:var(--soft);color:var(--text);border-radius:12px;padding:12px;outline:0}.auth-card .primary{width:100%;min-height:44px}.auth-error{min-height:20px;color:#c5221f;font-size:13px;margin-top:12px}.back-link{display:inline-block;margin-top:16px;color:var(--accent);text-decoration:none}.admin-page{place-items:start center}.standalone{width:min(820px,100%);margin:18px 0}.standalone h1{margin:5px 0}.standalone .admin-head{gap:12px}.standalone .admin-head .secondary{white-space:nowrap}

/* Local chat history drawer */
.history-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.28);z-index:80}
.history-backdrop.hidden{display:none}
.history-drawer{position:fixed;top:0;bottom:0;left:0;width:min(340px,88vw);background:var(--surface,#fff);z-index:90;transform:translateX(-105%);transition:transform .22s ease;box-shadow:12px 0 36px rgba(0,0,0,.14);display:flex;flex-direction:column;padding:14px}
.history-drawer.open{transform:translateX(0)}
.history-head{display:flex;align-items:center;justify-content:space-between;padding:8px 4px 14px;font-size:17px}
.history-new{border:0;border-radius:12px;padding:12px 14px;background:var(--accent);color:#fff;font-weight:600;text-align:left;cursor:pointer;margin-bottom:10px}
.history-list{overflow:auto;flex:1;min-height:0}
.history-item{display:flex;align-items:center;gap:8px;border-radius:12px;padding:8px;margin:3px 0}
.history-item.active{background:rgba(127,127,127,.12)}
.history-open{flex:1;min-width:0;border:0;background:none;text-align:left;padding:8px;cursor:pointer;color:inherit}
.history-title{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:14px}
.history-time{font-size:11px;opacity:.55;margin-top:3px}
.history-delete{border:0;background:none;color:inherit;opacity:.6;cursor:pointer;padding:8px;font-size:16px}
.history-note{font-size:11px;opacity:.55;margin:10px 4px 2px}
body.dark .history-drawer{background:#17181b}
@media(max-width:600px){
 .history-drawer{width:min(320px,88vw)}
 .history-backdrop{display:block}
}
.admin-health{margin:14px 0;padding:12px 14px;border-radius:14px;background:var(--soft);color:var(--muted);font-size:13px}.admin-health.ok{color:#18794e;background:rgba(24,121,78,.1)}.admin-health.bad{color:#b3261e;background:rgba(179,38,30,.1)}.admin-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:8px 0 18px}.stat-card{border:1px solid var(--border);background:var(--soft);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:6px}.stat-card span{font-size:11px;color:var(--muted)}.stat-card b{font-size:16px}.admin-tabs{display:flex;gap:5px;border-bottom:1px solid var(--border);overflow:auto;position:sticky;top:0;background:var(--panel);z-index:2}.tab{white-space:nowrap}@media(max-width:700px){.admin-grid{grid-template-columns:repeat(2,1fr)}.admin-tabs{margin-inline:-4px;padding-inline:4px}}

.send-btn.busy{opacity:.7;cursor:wait;transform:scale(.96)}.send-btn:disabled{cursor:wait}.voice-actions button{pointer-events:auto;position:relative}.voice-overlay{pointer-events:auto}.voice-card{pointer-events:auto}