:root{color-scheme:light;--bg:#f5f7fb;--panel:#fff;--line:#d9e0ea;--text:#172033;--muted:#667085;--accent:#0f766e;--danger:#b42318}
*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}a{color:var(--accent);text-decoration:none}.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.side{background:#111827;color:#e5e7eb;padding:18px}.brand{font-weight:700;font-size:18px;margin-bottom:18px}.nav a{display:block;color:#d1d5db;padding:9px 10px;border-radius:6px}.nav a:hover{background:#1f2937}.main{padding:22px}.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.panel,.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:16px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}.metric strong{display:block;font-size:24px;margin-top:6px}.muted{color:var(--muted)}.btn,button{border:0;background:var(--accent);color:#fff;border-radius:6px;padding:9px 12px;cursor:pointer}.btn.secondary{background:#475467}.btn.danger{background:var(--danger)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:6px;padding:9px;background:#fff}label{display:block;margin:12px 0 5px;font-weight:600}.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden}.table th,.table td{border-bottom:1px solid var(--line);padding:9px;text-align:left;vertical-align:top}.table th{background:#eef2f7}.secret{font-family:Consolas,monospace;background:#101828;color:#f9fafb;padding:10px;border-radius:6px;overflow:auto}.alert{border:1px solid #fedf89;background:#fffaeb;color:#93370d;border-radius:8px;padding:12px;margin:12px 0}@media(max-width:800px){.shell{grid-template-columns:1fr}.side{position:static}.main{padding:14px}}

.gateway-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(360px,1fr));gap:16px}.badge{display:inline-block;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:700}.badge.ok{background:#dcfae6;color:#067647}.muted-badge{background:#eef2f7;color:#475467}.notice{border:1px solid #abefc6;background:#ecfdf3;color:#067647;border-radius:8px;padding:12px;margin:12px 0}.check{display:flex;align-items:flex-start;gap:8px;font-weight:500}.check input{width:auto;margin-top:3px}code{font-family:Consolas,monospace;overflow-wrap:anywhere}