:root{--background:#f6f7f9;--foreground:#172033;--muted:#657085;--border:#d9dee8;--card:#ffffff;--accent:#0f766e;--danger:#b42318}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--background);color:var(--foreground);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.app-shell{display:grid;min-height:100vh;grid-template-columns:260px minmax(0,1fr)}.sidebar{background:#111827;color:#f9fafb;padding:24px}.sidebar h1{margin:0 0 24px;font-size:18px;line-height:1.3}.nav{display:grid;grid-gap:8px;gap:8px}.nav a{border-radius:10px;color:#d1d5db;padding:10px 12px}.nav a:hover{background:#1f2937;color:#fff}.main{padding:32px}.page-header{align-items:center;display:flex;gap:16px;justify-content:space-between;margin-bottom:24px}.page-header h2{margin:0;font-size:28px}.muted,.page-description{color:var(--muted)}.grid{display:grid;grid-gap:16px;gap:16px}.grid.cards{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px}.card h3{margin:0 0 8px;font-size:15px}.metric{font-size:32px;font-weight:700}.badge{border:1px solid var(--border);border-radius:999px;display:inline-flex;font-size:12px;font-weight:600;padding:4px 10px}.badge.connected{border-color:#0f766e;color:#0f766e}.badge.disconnected,.badge.error{border-color:var(--danger);color:var(--danger)}.table-wrapper{background:var(--card);border:1px solid var(--border);border-radius:14px;overflow:hidden}table{border-collapse:collapse;width:100%}td,th{border-bottom:1px solid var(--border);padding:12px 14px;text-align:left;vertical-align:top}th{background:#f3f4f6;color:#374151;font-size:12px;text-transform:uppercase}tr:last-child td{border-bottom:0}.actions{display:flex;flex-wrap:wrap;gap:8px}.button{align-items:center;background:var(--accent);border:0;border-radius:10px;color:#fff;cursor:pointer;display:inline-flex;font-weight:600;justify-content:center;padding:10px 14px}.button.secondary{background:#fff;border:1px solid var(--border);color:var(--foreground)}.button:disabled{cursor:not-allowed;opacity:.55}.form{display:grid;grid-gap:14px;gap:14px;max-width:520px}.form label{display:grid;grid-gap:6px;gap:6px;font-weight:600}.form input{border:1px solid var(--border);border-radius:10px;padding:11px 12px}.error-box{background:#fef3f2;border:1px solid #fecdca;border-radius:12px;color:var(--danger);padding:14px}.empty-state{background:var(--card);border:1px dashed var(--border);border-radius:14px;color:var(--muted);padding:24px;text-align:center}pre{background:#0b1220;color:#f9fafb;border-radius:12px;overflow:auto;padding:14px}@media (max-width:860px){.app-shell{grid-template-columns:1fr}.nav{grid-template-columns:repeat(2,1fr)}.main{padding:20px}}.button.danger{background:#b42318;color:#fff}.compact-actions{gap:6px;max-width:380px}.compact-actions .button{font-size:12px;padding:7px 9px}.error-text{color:var(--danger);font-weight:600}.success-text{color:var(--accent);font-weight:600}.success-box{background:#ecfdf3;border:1px solid #abefc6;border-radius:12px;color:#067647;padding:14px}.muted-link{color:var(--muted);font-size:12px;text-decoration:underline}.qr-card{display:grid;grid-gap:16px;gap:16px;max-width:820px}.qr-header{align-items:flex-start;display:flex;gap:16px;justify-content:space-between}.qr-preview{align-items:center;background:#fff;border:1px solid var(--border);border-radius:16px;display:flex;justify-content:center;min-height:320px;padding:20px}.qr-preview img{max-height:300px;max-width:300px}.meta-grid{display:grid;grid-gap:8px 20px;gap:8px 20px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}code{background:#f3f4f6;border:1px solid var(--border);border-radius:6px;padding:2px 5px}.small-metric{font-size:18px}.filters{align-items:end;background:var(--card);border:1px solid var(--border);border-radius:14px;display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));margin-bottom:16px;padding:16px}.filters label{color:var(--muted);display:grid;font-size:12px;grid-gap:6px;gap:6px;text-transform:uppercase}.filters input,.filters select{border:1px solid var(--border);border-radius:10px;color:var(--foreground);padding:10px 12px;text-transform:none}.json-viewer{max-height:680px;white-space:pre-wrap}.json-viewer,.table-wrapper code{word-break:break-word}