:root{--red:#e81f3d;--dark:#101827;--muted:#637083;--bg:#f5f6fb;--card:#fff;--line:#e2e6ef;--soft:#f9fafb}
*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--dark)}
button,input,textarea,select{font:inherit}button{border:0;border-radius:12px;padding:11px 14px;background:var(--red);color:#fff;font-weight:800;cursor:pointer}button.secondary{background:#111827}button.light{background:#fff;color:#111827;border:1px solid var(--line)}
input,textarea,select{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:#fff;margin:6px 0 12px}
textarea{resize:vertical}.wrap{max-width:1280px;margin:0 auto;padding:22px}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.brand{display:flex;align-items:center;gap:12px}.logo{width:46px;height:46px;border-radius:15px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:900}.title h1{font-size:23px;margin:0}.title span,.small{font-size:12px;color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 10px 28px rgba(16,24,39,.06)}.boot{padding:32px;display:flex;gap:12px;align-items:center}.hidden{display:none!important}.err{background:#fff1f2;color:#be123c;border:1px solid #fecdd3;border-radius:12px;padding:10px;margin:10px 0}.ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0;border-radius:12px;padding:10px;margin:10px 0}.auth{max-width:760px;margin:50px auto}.auth h2{margin-top:0}
.layout{display:grid;grid-template-columns:340px 1fr 280px;gap:16px}.sidebar,.details{min-height:70vh}.convList{display:flex;flex-direction:column;gap:10px;max-height:68vh;overflow:auto}.conv{border:1px solid var(--line);border-radius:14px;padding:12px;background:#fff;cursor:pointer}.conv:hover,.conv.active{border-color:#111827}.convTop{display:flex;justify-content:space-between;gap:8px}.badge{font-size:11px;border-radius:99px;padding:4px 7px;background:#fee2e2;color:#991b1b;font-weight:800}.chatHead{display:flex;justify-content:space-between;gap:12px;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:12px;margin-bottom:12px}.chatBox{height:52vh;overflow:auto;background:#fbfcff;border:1px solid var(--line);border-radius:14px;padding:12px}.msg{max-width:78%;margin:9px 0;padding:10px 12px;border-radius:14px;border:1px solid var(--line);background:#fff}.msg.admin{margin-left:auto;background:#111827;color:#fff}.msg.system{margin-inline:auto;background:#f1f5f9;text-align:center}.composer{display:flex;gap:10px;margin-top:12px}.composer textarea{margin:0}.composer button{align-self:flex-end}.tabs{display:flex;gap:8px;margin-bottom:10px}.tabs button{padding:8px 10px}.note{background:#fff7ed;border:1px solid #fed7aa;border-radius:12px;padding:10px;margin:8px 0}.embed{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;background:#0b1020;color:#d1e7ff;border-radius:14px;padding:14px;white-space:pre-wrap;overflow:auto}
@media(max-width:980px){.layout{grid-template-columns:1fr}.sidebar,.details{min-height:auto}.chatBox{height:45vh}}