:root{
 --bg:#0b0d10;--panel:#11151a;--panel2:#171c22;--line:#252c35;--text:#f3f5f7;
 --muted:#98a2ad;--accent:#6ea8fe;--good:#58d68d;--warn:#f5c26b;--bad:#ff7474;
 --shadow:0 18px 60px rgba(0,0,0,.38)
}
*{box-sizing:border-box}html,body{height:100%}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
button,input,textarea,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}
.login-shell{height:100%;display:grid;place-items:center;background:radial-gradient(circle at 50% 15%,#1b2738 0,#0b0d10 48%)}
.login-card{width:min(420px,92vw);background:rgba(17,21,26,.94);border:1px solid var(--line);padding:34px;border-radius:22px;box-shadow:var(--shadow)}
.brand-mark{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:linear-gradient(135deg,#7ab8ff,#9b82ff);font-weight:800;color:#081019;margin-bottom:18px}
.brand-mark.small{width:44px;height:44px;border-radius:13px;margin:0 auto 16px}
.login-card h1{margin:0 0 5px}.login-card p{color:var(--muted);margin:0 0 24px}
label{display:block;color:var(--muted);font-size:13px;margin:13px 0}input,textarea,select{width:100%;background:#0d1116;color:var(--text);border:1px solid var(--line);border-radius:12px;padding:12px;outline:none}
input:focus,textarea:focus{border-color:#526d91;box-shadow:0 0 0 3px rgba(110,168,254,.09)}
.primary,.sendbtn{border:0;background:linear-gradient(135deg,#75b6ff,#8d85ff);color:#07101b;font-weight:800;border-radius:12px;padding:12px 16px}
.login-card .primary{width:100%;margin-top:8px}.error{color:var(--bad);font-size:13px;margin-top:10px}
.app{height:100%;display:grid;grid-template-columns:280px minmax(0,1fr)}
.sidebar{background:#0d1014;border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.sidebar-head{display:flex;justify-content:space-between;align-items:center;padding:20px 18px 12px}.eyebrow{font-size:10px;letter-spacing:.18em;color:var(--muted)}.logo{font-size:20px;font-weight:800}
.iconbtn,.ghost{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:10px}.iconbtn{width:34px;height:34px}.iconbtn.big{width:42px;height:42px}.ghost{padding:8px 10px}
.mode-switch{margin:6px 12px 14px;padding:4px;display:grid;grid-template-columns:repeat(3,1fr);background:#090c10;border:1px solid var(--line);border-radius:14px}
.mode-switch button{background:transparent;border:0;color:var(--muted);padding:8px 5px;border-radius:10px}.mode-switch button.active{background:var(--panel2);color:var(--text);box-shadow:0 3px 12px rgba(0,0,0,.25)}
.mode-switch b,.mode-switch small{display:block}.mode-switch small{font-size:10px;color:var(--muted)}
.side-label{padding:0 18px 7px;color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.12em}
.conversations{overflow:auto;padding:0 8px;flex:1}.conv{display:flex;align-items:center;gap:8px;padding:10px;border-radius:10px;color:#cbd2da;margin:2px 0}.conv:hover,.conv.active{background:var(--panel2)}.conv-title{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.conv-del{opacity:0;border:0;background:transparent;color:var(--muted)}.conv:hover .conv-del{opacity:1}
.sidebar-footer{border-top:1px solid var(--line);padding:10px;display:grid;gap:7px}.sidebar-footer>.ghost{text-align:left}
.userbox{display:grid;grid-template-columns:34px 1fr 34px;gap:8px;align-items:center;padding-top:5px}.userbox small{display:block;color:var(--muted);font-size:11px}.avatar{width:34px;height:34px;border-radius:50%;background:#293443;display:grid;place-items:center;font-weight:800}
.main{min-width:0;display:flex;flex-direction:column;height:100%}.topbar{height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:rgba(11,13,16,.86);backdrop-filter:blur(12px)}
.topbar h2{font-size:16px;margin:0}.route-line{color:var(--muted);font-size:12px;margin-top:5px;display:flex;align-items:center;gap:7px}.dot{width:8px;height:8px;border-radius:50%;background:var(--warn)}.dot.good{background:var(--good)}.dot.bad{background:var(--bad)}
.pill{background:#1b222b;border:1px solid var(--line);padding:2px 7px;border-radius:99px}.mode-badge{font-size:11px;letter-spacing:.08em;background:#19202a;border:1px solid var(--line);padding:7px 10px;border-radius:99px}
.messages{flex:1;overflow:auto;padding:28px max(24px,calc((100% - 900px)/2));scroll-behavior:smooth}.welcome{text-align:center;max-width:690px;margin:9vh auto}.welcome h2{font-size:26px;margin:0}.welcome p{color:var(--muted)}
.suggestions{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:24px}.suggestions button{background:var(--panel);border:1px solid var(--line);color:#d9e0e7;border-radius:14px;text-align:left;padding:14px}.suggestions button:hover{border-color:#405168}
.msg{margin:0 0 22px}.msg.user{display:flex;justify-content:flex-end}.bubble{max-width:min(760px,88%);white-space:pre-wrap;overflow-wrap:anywhere}.user .bubble{background:#202833;border:1px solid #2c3948;padding:11px 14px;border-radius:16px 16px 4px 16px}.assistant .bubble{padding:0 4px;color:#e9edf2}
.msgmeta{font-size:11px;color:var(--muted);margin-top:8px;display:flex;gap:8px;flex-wrap:wrap}.tag{border:1px solid var(--line);background:#141a21;border-radius:99px;padding:2px 7px}.tag.escalated{border-color:#6a5832;color:#f6d285}
.thinking{color:var(--muted);display:flex;align-items:center;gap:9px}.spinner{width:15px;height:15px;border-radius:50%;border:2px solid #39414b;border-top-color:#8dbbff;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}
.composer-wrap{padding:10px max(20px,calc((100% - 900px)/2)) 20px;background:linear-gradient(0deg,var(--bg) 65%,transparent)}.composer{display:grid;grid-template-columns:42px 1fr 44px;gap:8px;align-items:end;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:8px;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.composer textarea{border:0;background:transparent;resize:none;max-height:190px;padding:10px 6px;box-shadow:none}.sendbtn{width:44px;height:42px;padding:0}.hint{text-align:center;color:#66717d;font-size:11px;margin-top:7px}
.image-preview{display:flex;gap:8px;padding-bottom:7px}.thumb{width:64px;height:64px;border:1px solid var(--line);border-radius:10px;object-fit:cover}
.drawer{position:fixed;inset:0;background:rgba(0,0,0,.52);display:grid;place-items:center;padding:20px;z-index:10}.drawer-card{width:min(760px,96vw);max-height:88vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);padding:18px}.drawer-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:14px}.drawer-head h3{margin:0}
.statgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.stat{background:#0d1116;border:1px solid var(--line);border-radius:12px;padding:13px}.stat small{display:block;color:var(--muted)}.stat b{font-size:20px}
.userrow{display:grid;grid-template-columns:1.4fr .7fr .7fr 1fr;gap:8px;align-items:center;border-bottom:1px solid var(--line);padding:10px 0}.admin-form{display:grid;grid-template-columns:1fr 1fr 130px;gap:8px;margin:14px 0}.admin-form .wide{grid-column:1/3}
#toast{position:fixed;top:16px;right:16px;z-index:30}.toast{background:#1b222b;border:1px solid var(--line);padding:10px 14px;border-radius:10px;box-shadow:var(--shadow);margin-bottom:8px}
@media(max-width:800px){.app{grid-template-columns:1fr}.sidebar{display:none}.suggestions{grid-template-columns:1fr}.messages{padding:20px 14px}.composer-wrap{padding:8px 12px 14px}.topbar{padding:0 14px}.statgrid{grid-template-columns:1fr 1fr}.userrow{grid-template-columns:1fr 1fr}.admin-form{grid-template-columns:1fr}}


/* Markdown rendering in assistant answers */
.assistant .bubble .md-p{margin:.45em 0 .7em}
.assistant .bubble .md-h{margin:1.15em 0 .45em;line-height:1.25;color:#f7f9fb}
.assistant .bubble .md-h1{font-size:1.34rem}
.assistant .bubble .md-h2{font-size:1.22rem}
.assistant .bubble .md-h3{font-size:1.11rem}
.assistant .bubble .md-h4{font-size:1.02rem}
.assistant .bubble .md-list{margin:.45em 0 .85em;padding-left:1.45em}
.assistant .bubble .md-list li{margin:.28em 0;padding-left:.12em}
.assistant .bubble strong{font-weight:750;color:#fff}
.assistant .bubble em{color:#cbd4de}
.assistant .bubble .md-inline{background:#171d24;border:1px solid #29313b;border-radius:6px;padding:.08em .34em;font:0.92em ui-monospace,SFMono-Regular,Consolas,monospace}
.assistant .bubble .md-code{margin:.8em 0 1em;background:#090c10;border:1px solid #252d37;border-radius:12px;overflow:auto}
.assistant .bubble .md-code-head{font:11px/1.2 system-ui;color:#8f9baa;background:#141a21;border-bottom:1px solid #252d37;padding:7px 11px}
.assistant .bubble .md-code code{display:block;padding:12px 14px;white-space:pre;tab-size:4;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;color:#e8edf3}
.assistant .bubble .md-hr{border:0;border-top:1px solid #29313a;margin:1.15em 0}
.assistant .bubble .md-gap{height:.18em}