*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:#f1f5f9;color:#0b1b2b}
.shell{display:flex;min-height:100vh}
.sidebar{width:240px;background:#0b1b2b;color:#fff;padding:18px;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;margin-bottom:20px}
.brand img{width:34px;height:34px;border-radius:6px;object-fit:cover}
.brand-name{font-size:16px}.brand-sub{font-size:11px;opacity:.7;font-weight:400}
nav{display:flex;flex-direction:column;gap:4px;flex:1}
nav a{color:#cbd5e1;text-decoration:none;padding:9px 12px;border-radius:8px;font-size:14px}
nav a:hover{background:#13314a}
nav a.active{background:#2563eb;color:#fff}
.me{border-top:1px solid #1e3a5f;padding-top:12px;margin-top:12px;font-size:13px}
.muted{opacity:.7;font-size:12px;text-transform:capitalize;margin-bottom:8px}
.btn-small{display:inline-block;margin-top:6px;padding:6px 10px;background:#374151;color:#fff;border-radius:6px;text-decoration:none;font-size:12px}
.main{flex:1;padding:24px;max-width:100%;overflow-x:auto}
h1{margin:0 0 14px;font-size:26px}h2{font-size:20px;margin:18px 0 10px}
.card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:18px;margin-bottom:16px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.flash{padding:12px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.flash.ok{background:#dcfce7;color:#14532d;border:1px solid #86efac}
.flash.err{background:#fee2e2;color:#7f1d1d;border:1px solid #fca5a5}
.flash.info{background:#dbeafe;color:#1e3a8a;border:1px solid #93c5fd}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid #cbd5e1;border-radius:7px;font-size:14px;font-family:inherit;background:#fff}
label{display:block;font-size:13px;font-weight:500;margin:8px 0 4px;color:#334155}
.btn{display:inline-block;padding:10px 18px;background:#2563eb;color:#fff;border:0;border-radius:8px;cursor:pointer;font-size:14px;text-decoration:none;font-weight:500}
.btn:hover{background:#1d4ed8}
.btn-sec{background:#64748b}.btn-sec:hover{background:#475569}
.btn-ok{background:#16a34a}.btn-ok:hover{background:#15803d}
.btn-warn{background:#ea580c}.btn-warn:hover{background:#c2410c}
.btn-danger{background:#dc2626}.btn-danger:hover{background:#b91c1c}
.btn-sm{padding:5px 11px;font-size:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
@media(max-width:760px){.shell{flex-direction:column}.sidebar{width:100%}nav{flex-direction:row;overflow-x:auto;flex-wrap:nowrap}.grid2,.grid3{grid-template-columns:1fr}}
.badge{display:inline-block;padding:3px 9px;border-radius:99px;font-size:11px;font-weight:600;background:#e2e8f0;color:#0f172a}
.badge.ok{background:#dcfce7;color:#14532d}.badge.warn{background:#fef3c7;color:#78350f}.badge.err{background:#fee2e2;color:#7f1d1d}
.badge.blue{background:#dbeafe;color:#1e3a8a}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:10px;border-bottom:1px solid #e2e8f0;vertical-align:top}
th{background:#f8fafc;font-size:12px;text-transform:uppercase;color:#64748b}
.ad-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.ad{background:#fff;border:1px solid #e2e8f0;border-radius:12px;padding:16px}
.ad h3{margin:0 0 8px;font-size:16px;display:flex;justify-content:space-between;align-items:center}
.ad .meta{font-size:13px;color:#475569;line-height:1.7}
.ad .actions{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}
.chat-box{height:400px;overflow-y:auto;background:#f8fafc;border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:8px}
.msg{padding:8px 12px;border-radius:12px;max-width:75%;font-size:14px}
.msg.me{background:#2563eb;color:#fff;align-self:flex-end}
.msg.you{background:#fff;border:1px solid #e2e8f0;align-self:flex-start}
.msg .ts{font-size:10px;opacity:.6;margin-top:2px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:100}
.modal-box{background:#fff;border-radius:12px;padding:24px;max-width:480px;width:92%}
.stat{background:#fff;border-radius:10px;padding:16px;border:1px solid #e2e8f0}
.stat .n{font-size:24px;font-weight:700;color:#2563eb}
.stat .l{font-size:12px;color:#64748b;text-transform:uppercase}