:root{--bg:#0f1115;--panel:#181b22;--border:#272b34;--text:#e6e8ec;--muted:#9aa0ac;--accent:#4f8cff;--green:#2ecc71;--red:#e74c3c;--amber:#f1c40f}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}header.topbar{display:flex;align-items:center;justify-content:space-between;padding:16px 28px;border-bottom:1px solid var(--border)}header.topbar h1{font-size:18px;margin:0}main{max-width:1100px;margin:0 auto;padding:28px}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:16px;gap:16px}.card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:18px}.card h3{margin:0 0 6px;font-size:16px}.meta{color:var(--muted);font-size:13px;margin:2px 0}.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:999px;font-weight:600}.badge.online{background:rgba(46,204,113,.15);color:var(--green)}.badge.offline{background:rgba(154,160,172,.15);color:var(--muted)}.badge.in_use{background:rgba(241,196,15,.15);color:var(--amber)}.badge.maintenance{background:rgba(231,76,60,.15);color:var(--red)}.btn,button{background:var(--accent);color:white;border:none;border-radius:8px;padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;margin-top:12px}.btn[disabled],button:disabled{background:var(--border);color:var(--muted);cursor:not-allowed}.btn.secondary{background:transparent;border:1px solid var(--border);color:var(--text)}.empty{color:var(--muted);padding:48px}.empty,.signin{text-align:center}.signin{max-width:380px;margin:120px auto}