:root{--bg:#07101f;--panel:#0d1728;--panel2:#111d31;--ink:#eef7ff;--muted:#92a2b7;--line:#223049;--brand:#14b8a6;--brand2:#7c3aed;--danger:#ef4444;--ok:#22c55e}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#10284b,#07101f 48%,#050914);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial;min-height:100vh}.shell{display:grid;grid-template-columns:340px 1fr;min-height:100vh}.sidebar{background:rgba(10,20,36,.9);border-right:1px solid var(--line);padding:18px;display:flex;flex-direction:column;gap:14px}.brand{display:flex;gap:12px;align-items:center}.logo{width:44px;height:44px;border-radius:15px;background:linear-gradient(135deg,var(--brand),var(--brand2));display:grid;place-items:center;font-weight:900;box-shadow:0 10px 30px #14b8a633}.brand h1{font-size:18px;margin:0}.brand p{margin:2px 0 0;color:var(--muted);font-size:12px}.card{background:rgba(17,29,49,.82);border:1px solid var(--line);border-radius:22px;box-shadow:0 20px 80px #0005}.auth{max-width:430px;margin:8vh auto;padding:28px}.auth .logo{margin:auto;width:64px;height:64px}.auth h1{text-align:center;margin:18px 0 6px}.auth p{text-align:center;color:var(--muted)}input,button,select{font:inherit}input,select{width:100%;padding:13px 14px;background:#081325;border:1px solid var(--line);border-radius:14px;color:var(--ink);outline:none;margin:7px 0}input:focus{border-color:var(--brand)}button{border:0;border-radius:14px;background:linear-gradient(135deg,var(--brand),#0ea5e9);color:#04111b;font-weight:800;padding:12px 15px;cursor:pointer}button.secondary{background:#18243a;color:var(--ink);border:1px solid var(--line)}button.danger{background:var(--danger);color:white}.tabs{display:flex;gap:8px;margin:18px 0}.tabs button{flex:1}.hidden{display:none!important}.notice{padding:12px;border:1px solid var(--line);background:#081325;border-radius:14px;color:var(--muted);margin:10px 0}.topbar{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;background:rgba(7,16,31,.7);backdrop-filter:blur(10px)}.main{display:flex;flex-direction:column;height:100vh}.list{display:flex;flex-direction:column;gap:8px;overflow:auto}.item{padding:13px;border-radius:16px;background:#0b1629;border:1px solid transparent;cursor:pointer}.item:hover,.item.active{border-color:#14b8a655;background:#10213b}.item b{display:block}.item span{color:var(--muted);font-size:12px}.chat{flex:1;overflow:auto;padding:18px;display:flex;flex-direction:column;gap:10px}.bubble{max-width:74%;padding:12px 14px;border-radius:18px;background:#132138;border:1px solid var(--line);line-height:1.35}.bubble.me{align-self:flex-end;background:linear-gradient(135deg,#0f766e,#2563eb);border:0}.meta{font-size:11px;color:#bfd0e3cc;margin-top:5px}.composer{padding:14px 18px;border-top:1px solid var(--line);display:flex;gap:10px;background:rgba(7,16,31,.85)}.composer input{margin:0}.admin{padding:12px;display:grid;gap:8px}.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);color:var(--muted);border-radius:999px;padding:6px 9px;font-size:12px}.row{display:flex;gap:8px;align-items:center}.row>*{flex:1}.empty{display:grid;place-items:center;height:100%;color:var(--muted);text-align:center}.small{font-size:12px;color:var(--muted)}@media(max-width:850px){.shell{grid-template-columns:1fr}.sidebar{height:42vh}.main{height:58vh}.bubble{max-width:90%}.topbar{position:sticky;top:0}.auth{margin:2vh 12px}}