:root{--primary:#176bff;--primary-dark:#0f55cc;--primary-soft:#e8f0ff;--dark:#0b1220;--text:#111827;--text-secondary:#6b7280;--text-tertiary:#9ca3af;--bg:#f8fafc;--surface:#fff;--surface-alt:#f1f5f9;--border:#e5e7eb;--border-strong:#d1d5db;--success:#16a34a;--success-soft:#e7f6ed;--warning:#f59e0b;--warning-soft:#fef3dc;--error:#dc2626;--error-soft:#fdeaea;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:18px;--radius-pill:999px;--shadow-xs:0 1px 4px #0b12200a;--shadow-sm:0 2px 8px #0b12200f;--shadow-md:0 4px 16px #0b122014;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box}body{background:var(--bg);-webkit-font-smoothing:antialiased;margin:0}h1{letter-spacing:-.4px;margin:0;font-size:26px;font-weight:700;line-height:32px}h2{letter-spacing:-.3px;margin:0;font-size:21px;font-weight:700;line-height:27px}h3{margin:0;font-size:17px;font-weight:600;line-height:23px}p{margin:0}a{color:var(--primary);text-decoration:none}.btn{border-radius:var(--radius-lg);background:var(--primary);color:#fff;cursor:pointer;border:1px solid #0000;justify-content:center;align-items:center;gap:8px;min-height:40px;padding:0 18px;font-size:14px;font-weight:600;transition:opacity .15s,transform 50ms;display:inline-flex}.btn:hover:not(:disabled){opacity:.9}.btn:active:not(:disabled){transform:scale(.99)}.btn:disabled{opacity:.45;cursor:not-allowed}.btn.secondary{background:var(--surface);color:var(--text);border-color:var(--border)}.btn.ghost{color:var(--primary);background:0 0}.btn.danger{background:var(--error)}.btn.sm{min-height:32px;padding:0 12px;font-size:13px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-xs);padding:20px}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--text-secondary);font-size:13px;font-weight:500}.input,.select,.textarea{border:1px solid var(--border);border-radius:var(--radius-md);background:var(--surface);min-height:40px;color:var(--text);width:100%;padding:9px 12px;font-family:inherit;font-size:14px}.input:focus,.select:focus,.textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft);outline:none}.textarea{resize:vertical;min-height:90px}.table{border-collapse:collapse;width:100%;font-size:14px}.table th{text-align:left;letter-spacing:.3px;text-transform:uppercase;color:var(--text-secondary);border-bottom:1px solid var(--border);padding:10px 12px;font-size:12px;font-weight:600}.table td{border-bottom:1px solid var(--border);vertical-align:middle;padding:12px}.table tr:last-child td{border-bottom:none}.badge{border-radius:var(--radius-sm);background:var(--surface-alt);color:var(--text-secondary);align-items:center;gap:4px;padding:3px 9px;font-size:12px;font-weight:600;display:inline-flex}.badge.success{background:var(--success-soft);color:var(--success)}.badge.warning{background:var(--warning-soft);color:var(--warning)}.badge.error{background:var(--error-soft);color:var(--error)}.badge.primary{background:var(--primary-soft);color:var(--primary)}.switch{flex:none;width:42px;height:24px;display:inline-block;position:relative}.switch input{opacity:0;width:0;height:0}.switch .slider{cursor:pointer;background:var(--border-strong);border-radius:var(--radius-pill);transition:background .2s;position:absolute;inset:0}.switch .slider:before{content:"";background:#fff;border-radius:50%;width:18px;height:18px;transition:transform .2s;position:absolute;bottom:3px;left:3px}.switch input:checked+.slider{background:var(--primary)}.switch input:checked+.slider:before{transform:translate(18px)}.row{align-items:center;gap:12px;display:flex}.col{flex-direction:column;gap:12px;display:flex}.between{justify-content:space-between}.grow{flex:1}.muted{color:var(--text-secondary);font-size:13px}.empty{text-align:center;color:var(--text-secondary);padding:48px 24px}.layout{grid-template-columns:248px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--surface);border-right:1px solid var(--border);flex-direction:column;gap:24px;height:100vh;padding:20px 16px;display:flex;position:sticky;top:0}.brand{align-items:center;gap:10px;padding:4px 8px;display:flex}.brand-mark{background:var(--primary);color:#fff;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;font-weight:700;display:flex}.brand-name{font-size:16px;font-weight:700}.brand-sub{color:var(--text-secondary);font-size:11px}.nav{flex-direction:column;flex:1;gap:2px;display:flex}.nav-item{border-radius:var(--radius-md);color:var(--text);align-items:center;gap:10px;padding:10px 12px;font-size:14px;font-weight:500;display:flex}.nav-item:hover{background:var(--surface-alt)}.nav-item.active{background:var(--primary-soft);color:var(--primary);font-weight:600}.nav-icon{text-align:center;width:20px;font-size:15px}.sidebar-footer{flex-direction:column;gap:10px;display:flex}.user-chip{border-radius:var(--radius-md);background:var(--surface-alt);align-items:center;gap:10px;padding:10px;display:flex}.avatar{background:var(--primary);color:#fff;border-radius:50%;flex:none;justify-content:center;align-items:center;width:32px;height:32px;font-size:14px;font-weight:600;display:flex}.user-name{font-size:13px;font-weight:600}.user-role{color:var(--text-secondary);font-size:11px}.content{max-width:1180px;padding:28px 32px}.page-header{justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px;display:flex}.page-header .subtitle{color:var(--text-secondary);margin-top:4px;font-size:14px}.login-wrap{background:var(--bg);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.login-card{width:100%;max-width:400px}.metrics{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;display:grid}.metric-value{letter-spacing:-.5px;font-size:28px;font-weight:700}.metric-label{color:var(--text-secondary);font-size:13px}.chat{grid-template-columns:300px 1fr;gap:16px;height:calc(100vh - 160px);display:grid}.chat-list{flex-direction:column;gap:6px;display:flex;overflow-y:auto}.chat-item{border-radius:var(--radius-md);cursor:pointer;border:1px solid var(--border);background:var(--surface);padding:12px}.chat-item:hover{background:var(--surface-alt)}.chat-item.active{border-color:var(--primary);background:var(--primary-soft)}.chat-panel{flex-direction:column;min-height:0;display:flex}.chat-messages{flex-direction:column;flex:1;gap:8px;padding:4px;display:flex;overflow-y:auto}.bubble{border-radius:var(--radius-lg);max-width:72%;padding:10px 14px;font-size:14px}.bubble.mine{background:var(--primary);color:#fff;border-bottom-right-radius:6px;align-self:flex-end}.bubble.theirs{background:var(--surface-alt);border-bottom-left-radius:6px;align-self:flex-start}.bubble-time{opacity:.7;margin-top:3px;font-size:11px}.composer{border-top:1px solid var(--border);gap:8px;padding-top:12px;display:flex}.modal-backdrop{z-index:50;background:#0b122080;justify-content:center;align-items:center;padding:24px;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:var(--radius-xl);width:100%;max-width:560px;max-height:88vh;padding:24px;overflow-y:auto}.modal-grid{grid-template-columns:1fr 1fr;gap:14px;display:grid}.modal-grid .full{grid-column:1/-1}@media (width<=900px){.layout{grid-template-columns:1fr}.sidebar{height:auto;position:static}.chat{grid-template-columns:1fr;height:auto}.modal-grid{grid-template-columns:1fr}}