@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap";:root{--bg: #0b1220;--panel: rgba(22, 30, 46, .55);--panel-border: rgba(255,255,255,.08);--text: #e8f0ff;--muted: #a9b6d3;--accent: #7aa2ff;--accent-2: #36e0c2;--danger: #ff8c8c;--user-bubble: #233249;--bot-bubble: #16243a;--chip: rgba(122,162,255,.14)}html,body,#root{height:100%;background:radial-gradient(1000px 600px at 20% -10%,#1b2b50 10%,transparent 60%),radial-gradient(900px 600px at 100% 10%,#0e2d2f 10%,transparent 55%),linear-gradient(180deg,var(--bg),#0a1120 60%,#0a0f1e);color:var(--text)}.chat-shell{max-width:980px;margin:24px auto;padding:18px;border-radius:20px;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:var(--panel);border:1px solid var(--panel-border);box-shadow:0 10px 30px #00000059,inset 0 1px #ffffff08;display:grid;grid-template-rows:auto 1fr auto;min-height:calc(100vh - 48px)}.chat-header{padding:8px 12px 14px;border-bottom:1px solid var(--panel-border)}.chat-header .title{font-weight:700;letter-spacing:.2px;font-size:20px;display:inline-flex;align-items:center;gap:10px;background:linear-gradient(90deg,#fff,#98c0ff 55%,#7aa2ff);-webkit-background-clip:text;background-clip:text;color:transparent}.chat-header .title .logo{filter:drop-shadow(0 2px 6px rgba(122,162,255,.35))}.chat-header .subtitle{margin-top:4px;color:var(--muted);font-size:13px}.chat-header .session{margin-top:6px;font-size:12px;color:var(--muted);opacity:.8}.chat-body{position:relative;overflow:auto;padding:14px 12px 70px}.sys-msg{margin:10px auto;width:fit-content;padding:8px 12px;border-radius:999px;background:#112033;color:var(--muted);font-size:12px}.sys-msg.error{background:#ff565614;color:var(--danger)}.bubble-row{display:grid;grid-template-columns:38px 1fr;gap:10px;margin:12px 0}.bubble-row.user .bubble{background:var(--user-bubble)}.bubble-row.assistant .bubble{background:var(--bot-bubble)}.avatar{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:#ffffff0f;border:1px solid var(--panel-border);font-size:18px}.bubble{padding:12px 14px;border-radius:14px;border:1px solid var(--panel-border);animation:bubbleIn .18s ease-out both}.bubble .meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--muted);margin-bottom:6px}.bubble .meta .who{color:#d8e5ff}.bubble .meta .dot{opacity:.6}.bubble .meta .action{margin-left:auto;border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:12px;padding:4px 6px;border-radius:6px}.bubble .meta .action:hover{background:#ffffff0f;color:var(--text)}.bubble .content{white-space:pre-wrap;line-height:1.48}.bubble .sources{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.bubble .sources .chip{font-size:12px;color:#cfe0ff;text-decoration:none;background:var(--chip);border:1px solid rgba(122,162,255,.25);padding:6px 10px;border-radius:999px;transition:all .15s ease}.bubble .sources .chip:hover{background:#7aa2ff38;transform:translateY(-1px)}.bubble .typing{display:inline-flex;gap:6px;align-items:center;height:10px}.bubble .typing .dot{width:6px;height:6px;border-radius:50%;background:#cfe0ff;opacity:.6;animation:blink 1s infinite ease-in-out}.bubble .typing .dot:nth-child(2){animation-delay:.2s}.bubble .typing .dot:nth-child(3){animation-delay:.4s}@keyframes bubbleIn{0%{transform:translateY(2px) scale(.98);opacity:0}to{transform:translateY(0) scale(1);opacity:1}}@keyframes blink{0%,80%,to{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-1px)}}.scroll-bottom{position:absolute;right:16px;bottom:82px;width:34px;height:34px;border-radius:50%;border:1px solid var(--panel-border);background:#ffffff0d;color:var(--text);cursor:pointer;box-shadow:0 6px 20px #00000059}.scroll-bottom:hover{background:#ffffff17}.chat-footer{position:sticky;bottom:0;padding:12px 10px 10px;background:linear-gradient(180deg,transparent,rgba(11,18,32,.35));-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.chat-footer .input-wrap{display:grid;grid-template-columns:1fr auto;gap:8px;border:1px solid var(--panel-border);background:#0e1522d9;border-radius:14px;padding:8px;box-shadow:inset 0 1px #ffffff08}.chat-footer .input-wrap input{background:transparent;border:0;outline:none;color:var(--text);padding:10px 12px;font-size:15px}.chat-footer .input-wrap input::placeholder{color:var(--muted)}.chat-footer .input-wrap .buttons{display:flex;gap:8px}.chat-footer .input-wrap .buttons .btn{border:1px solid var(--panel-border);background:#1a2539;color:var(--text);border-radius:10px;padding:10px 14px;cursor:pointer;transition:transform .05s ease,background .15s ease,opacity .15s}.chat-footer .input-wrap .buttons .btn:disabled{opacity:.5;cursor:not-allowed}.chat-footer .input-wrap .buttons .btn:not(:disabled):active{transform:translateY(1px)}.chat-footer .input-wrap .buttons .btn.send{background:linear-gradient(180deg,#23324a,#1a2539);border-color:#7aa2ff40}.chat-footer .input-wrap .buttons .btn.reset{background:linear-gradient(180deg,#223043,#1a2638)}@media (max-width: 720px){.chat-shell{margin:0;border-radius:0;min-height:100vh}.chat-footer .input-wrap input{font-size:14px}}:root{--bg: #0b1320;--panel: #121a2a;--text: #e6eefc;--muted: #93a4c0;--accent: #3b82f6;--bubble: #1b2540;--bubbleUser: #234b8f}*{box-sizing:border-box}html,body,#root{height:100%;margin:0;background:radial-gradient(1200px 800px at 60% -20%,#10203d,#0b1320);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.app .container{max-width:900px;margin:40px auto;background:linear-gradient(180deg,#2c427133,#1a274333);border:1px solid rgba(147,164,192,.2);border-radius:20px;padding:24px;box-shadow:0 10px 30px #00000040}h1{margin:0 0 6px;font-size:28px;letter-spacing:.2px}.sub{margin:0 0 18px;color:var(--muted);font-size:14px}