:root{--ink:#17212b;--muted:#66737f;--line:#dce3e8;--orange:#f36b21;--paper:#fff;--canvas:#f4f7f8;--ok:#116149;--danger:#a52b2b}
*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font:15px/1.5 Arial,Helvetica,sans-serif}.topbar{min-height:64px;background:#17212b;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;gap:20px}.brand{font-weight:700;font-size:18px;color:#fff;text-decoration:none}.brand span{font-weight:400;color:#dce3e8}.topbar nav{display:flex;align-items:center;gap:16px}.topbar nav a{color:#fff;text-decoration:none}.topbar .user{color:#dce3e8;font-size:13px}.page{max-width:1180px;margin:0 auto;padding:34px 24px 56px}.hero{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:24px}.hero h1{margin:0 0 4px;font-size:30px}.hero p{margin:0;color:var(--muted)}.card{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:24px;box-shadow:0 2px 12px rgba(23,33,43,.04);margin-bottom:20px}.card h2{margin:0 0 18px;font-size:20px}.card h3{margin:0 0 10px;font-size:16px}.narrow{max-width:660px;margin:40px auto}.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.customer-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.customer{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;text-decoration:none;color:var(--ink);transition:transform .15s,box-shadow .15s}.customer:hover{transform:translateY(-2px);box-shadow:0 7px 20px rgba(23,33,43,.1)}.customer h2{font-size:18px;margin:0 0 8px}.customer p{margin:0;color:var(--muted)}.status{display:inline-block;border-radius:999px;padding:3px 9px;background:#eef3f5;color:#42505a;font-size:12px;font-weight:700}.status.connected{background:#e4f5ed;color:var(--ok)}label{display:block;font-weight:700;margin:0 0 6px}input,textarea,select{width:100%;border:1px solid #b8c4cc;border-radius:7px;background:#fff;padding:10px 11px;font:inherit;color:var(--ink)}textarea{min-height:280px;resize:vertical;font-family:Consolas,"Courier New",monospace;font-size:13px}.field{margin-bottom:15px}.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px}.button,button{appearance:none;border:0;border-radius:7px;background:var(--orange);color:#fff;text-decoration:none;cursor:pointer;font:700 14px/1 Arial,Helvetica,sans-serif;padding:11px 15px;display:inline-block}.button.secondary,button.secondary{background:#e7edf0;color:#20303b}.button.danger{background:var(--danger)}.hint{color:var(--muted);font-size:13px;margin:6px 0 0}.flash{padding:13px 16px;border-radius:8px;margin-bottom:20px;font-weight:700}.flash.success{background:#e5f6ee;color:#0d5d43}.flash.error{background:#fde9e9;color:#922222}.tabs{display:flex;gap:8px;overflow:auto;margin:0 0 20px;padding-bottom:2px}.tabs a{white-space:nowrap;text-decoration:none;color:#43525d;background:#e7edf0;border-radius:999px;padding:8px 12px}.tabs a.active{color:#fff;background:#17212b}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:8px}table{border-collapse:collapse;width:100%;min-width:760px}th,td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#f7f9fa;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:#56636d}tr:last-child td{border-bottom:0}.muted{color:var(--muted)}.code{font-family:Consolas,"Courier New",monospace;background:#f3f6f7;border-radius:5px;padding:2px 5px;font-size:13px}.preview{overflow:auto;border:1px dashed #b4c1c8;border-radius:8px;padding:20px;background:#fff}.split{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}.notice{padding:14px 16px;border-left:4px solid var(--orange);background:#fff8f3}.inline-form{display:flex;gap:8px;align-items:center}.inline-form input{min-width:230px}.empty{border:1px dashed #b6c2ca;border-radius:10px;padding:24px;color:var(--muted);background:#fff}.top-gap{margin-top:20px}@media(max-width:760px){.topbar{padding:12px 20px;align-items:flex-start;flex-direction:column}.topbar nav{flex-wrap:wrap}.page{padding:24px 16px}.hero{flex-direction:column}.grid,.grid.three,.split{grid-template-columns:1fr}.user{display:none}.inline-form{align-items:stretch;flex-direction:column}}