:root{--primary:#6d43d9;--primary-dark:#4d2ca5;--accent:#ffc928;--bg:#f5f4f8;--card:#fff;--text:#272532;--muted:#747181;--line:#e7e3ef;--ok:#17875d;--danger:#b83a4b;--shadow:0 14px 38px rgba(55,42,92,.12)}
*{box-sizing:border-box}html{font-family:Arial,Helvetica,sans-serif;color:var(--text);background:var(--bg)}body{margin:0;min-height:100vh}button,input,select,textarea{font:inherit}.shell{min-height:100vh}.topbar{height:68px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:sticky;top:0;z-index:10}.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--primary)}.brand-badge{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--primary),#9a70ee);display:grid;place-items:center;color:#fff}.top-actions{display:flex;gap:10px;align-items:center}.layout{display:grid;grid-template-columns:230px minmax(0,1fr);min-height:calc(100vh - 68px)}.sidebar{background:#fff;border-right:1px solid var(--line);padding:20px 14px}.nav{display:grid;gap:7px}.nav button{border:0;background:transparent;text-align:left;padding:12px 14px;border-radius:12px;color:var(--muted);cursor:pointer}.nav button:hover,.nav button.active{background:#f0ebff;color:var(--primary);font-weight:700}.main{padding:28px}.page-head{display:flex;justify-content:space-between;gap:20px;align-items:flex-start;margin-bottom:22px}.page-head h1{margin:0 0 7px;font-size:30px}.page-head p{margin:0;color:var(--muted)}.grid{display:grid;gap:18px}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.stat{font-size:30px;font-weight:800;margin:8px 0}.muted{color:var(--muted)}.pill{display:inline-flex;padding:5px 9px;border-radius:999px;background:#eee9fa;color:var(--primary);font-size:12px;font-weight:700}.pill.ok{background:#e8f7f1;color:var(--ok)}.pill.warn{background:#fff5d8;color:#8f6b00}.list{display:grid;gap:12px}.item{border:1px solid var(--line);border-radius:14px;padding:15px;display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.item h3{margin:0 0 7px;font-size:17px}.item p{margin:0;color:var(--muted);line-height:1.45}.button{border:0;border-radius:12px;padding:11px 16px;font-weight:700;cursor:pointer;background:var(--primary);color:#fff}.button:hover{background:var(--primary-dark)}.button.secondary{background:#f0ebff;color:var(--primary)}.button.ghost{background:transparent;color:var(--muted);border:1px solid var(--line)}.button.danger{background:#fff0f2;color:var(--danger)}.form{display:grid;gap:14px}.field{display:grid;gap:7px}.field label{font-size:13px;color:var(--muted);font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 13px;background:#fff;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(109,67,217,.12)}.auth-wrap{min-height:100vh;display:grid;grid-template-columns:minmax(320px,520px) minmax(0,1fr)}.auth-panel{padding:48px;display:flex;flex-direction:column;justify-content:center;background:#fff}.auth-visual{background:linear-gradient(140deg,#6d43d9,#aa7eee);color:#fff;padding:60px;display:flex;align-items:center}.auth-visual h1{font-size:48px;line-height:1.08;margin:0 0 20px}.auth-visual p{font-size:19px;line-height:1.55;max-width:620px}.auth-title{font-size:30px;margin:26px 0 7px}.auth-sub{color:var(--muted);margin:0 0 24px}.auth-links{display:flex;justify-content:space-between;margin-top:15px}.link{border:0;background:none;color:var(--primary);cursor:pointer;padding:0}.notice{padding:12px 14px;border-radius:12px;background:#eef9f4;color:var(--ok);margin-bottom:14px}.error{padding:12px 14px;border-radius:12px;background:#fff0f2;color:var(--danger);margin-bottom:14px}.demo-box{margin-top:18px;background:#f7f4ff;border:1px solid #e4dcfa;padding:14px;border-radius:12px;font-size:13px;line-height:1.5}.chat{height:310px;overflow:auto;background:#f7f6fa;border-radius:14px;padding:14px;display:grid;align-content:start;gap:10px}.bubble{max-width:78%;padding:10px 12px;border-radius:13px;background:#fff;border:1px solid var(--line)}.bubble.me{margin-left:auto;background:#eee8ff;border-color:#ddd1ff}.chat-form{display:flex;gap:9px;margin-top:10px}.chat-form input{flex:1;border:1px solid var(--line);border-radius:12px;padding:11px}.role-switch{display:flex;gap:8px}.role-switch button{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;cursor:pointer}.role-switch button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.empty{text-align:center;padding:36px;color:var(--muted)}.footer-note{margin-top:24px;color:var(--muted);font-size:12px}.mobile-nav{display:none}
@media(max-width:900px){.auth-wrap{grid-template-columns:1fr}.auth-visual{display:none}.layout{grid-template-columns:1fr}.sidebar{display:none}.main{padding:18px}.grid-3,.grid-2{grid-template-columns:1fr}.topbar{padding:0 16px}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:#fff;border-top:1px solid var(--line);z-index:20;padding:7px;gap:5px}.mobile-nav button{flex:1;border:0;background:transparent;padding:8px 4px;font-size:11px;color:var(--muted)}.mobile-nav button.active{color:var(--primary);font-weight:700}.main{padding-bottom:86px}.auth-panel{padding:28px 22px}.page-head{display:block}.page-head .button{margin-top:14px}}