:root{--green:#06b855;--dark:#1f2937;--muted:#6b7280;--line:#e5e7eb;--bg:#f6f8fb;--danger:#ef4444;--blue:#2563eb;--orange:#f97316}.layout{display:flex;min-height:100vh}.sidebar{width:236px;background:#202a33;color:#d1d5db;position:fixed;inset:0 auto 0 0;overflow-y:auto}.brand{background:linear-gradient(90deg,#06b855,#00a282);color:white;font-weight:700;padding:16px 18px;font-size:18px;letter-spacing:.02em}.nav-section{padding:10px 14px 4px;color:#8ca3b0;font-size:12px}.nav a{display:block;color:#d1d5db;text-decoration:none;padding:10px 18px;border-left:4px solid transparent;font-size:14px}.nav a:hover,.nav a.active{background:#121820;color:#fff;border-left-color:var(--green)}.main{margin-left:236px;flex:1;background:var(--bg);min-width:0}.topbar{height:56px;background:linear-gradient(90deg,#08b65b,#009b88);display:flex;align-items:center;justify-content:space-between;padding:0 22px;color:white;box-shadow:0 2px 8px rgba(0,0,0,.08)}.topbar a{color:white}.content{padding:24px}.card{background:white;border:1px solid var(--line);border-radius:10px;padding:18px;margin-bottom:18px;box-shadow:0 1px 3px rgba(15,23,42,.04)}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.stat{border-left:5px solid var(--green)}.stat .num{font-size:28px;font-weight:800}.muted{color:var(--muted);font-size:13px}.page-title{font-size:24px;font-weight:800;margin:0 0 16px}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:white;color:#111827;text-decoration:none;border-radius:8px;padding:8px 12px;font-size:14px;cursor:pointer}.btn:hover{filter:brightness(.98)}.btn-primary{background:var(--green);border-color:var(--green);color:white}.btn-blue{background:var(--blue);border-color:var(--blue);color:white}.btn-danger{background:var(--danger);border-color:var(--danger);color:white}.btn-orange{background:var(--orange);border-color:var(--orange);color:white}.btn-sm{padding:5px 8px;font-size:12px}.toolbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}.table{width:100%;border-collapse:collapse;background:white}.table th,.table td{border-bottom:1px solid var(--line);padding:10px;text-align:left;vertical-align:top;font-size:14px}.table th{background:#f3f4f6;color:#374151;font-weight:700}.form-row{margin-bottom:14px}.label{font-weight:700;display:block;margin-bottom:6px}.input,.select,.textarea{width:100%;border:1px solid #d1d5db;border-radius:8px;padding:9px 10px;font-size:14px;background:white;box-sizing:border-box}.textarea{min-height:110px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.help{font-size:12px;color:var(--muted);margin-top:4px}.badge{display:inline-block;border-radius:999px;padding:3px 8px;font-size:12px;background:#eef2ff;color:#3730a3}.badge-green{background:#dcfce7;color:#166534}.badge-red{background:#fee2e2;color:#991b1b}.badge-yellow{background:#fef3c7;color:#92400e}.tag{display:inline-block;color:white;border-radius:999px;padding:2px 8px;font-size:12px;margin:1px}.flash{padding:10px 14px;border-radius:8px;margin-bottom:12px}.flash-success{background:#dcfce7;color:#166534}.flash-danger{background:#fee2e2;color:#991b1b}.flash-warning{background:#fef3c7;color:#92400e}.chat{display:grid;grid-template-columns:280px 1fr;gap:16px}.friend-list{max-height:70vh;overflow:auto}.friend-item{display:block;padding:10px;border-bottom:1px solid var(--line);text-decoration:none;color:#111827}.friend-item.active,.friend-item:hover{background:#e8fff1}.bubble-wrap{display:flex;margin:8px 0}.bubble-wrap.in{justify-content:flex-start}.bubble-wrap.out{justify-content:flex-end}.bubble{max-width:70%;border-radius:12px;padding:9px 12px;white-space:pre-wrap;background:white;border:1px solid var(--line)}.bubble-wrap.out .bubble{background:#d9fbe6}.bubble-wrap.system .bubble{background:#f3f4f6;color:#4b5563}.public{max-width:760px;margin:24px auto}.preview-phone{border:10px solid #111827;border-radius:28px;background:#f9fafb;min-height:420px;padding:18px;box-shadow:0 8px 18px rgba(0,0,0,.12)}.code{background:#111827;color:#d1fae5;padding:12px;border-radius:8px;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px}@media(max-width:900px){.sidebar{position:static;width:100%;height:auto}.layout{display:block}.main{margin-left:0}.grid-2,.grid-3,.grid-4,.chat{grid-template-columns:1fr}.content{padding:14px}}