:root{--brand: #4f46e5;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--bg: #f9fafb;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.auth-shell{display:flex;align-items:center;justify-content:center;min-height:100vh}.auth-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:32px;width:360px}.auth-card h1{font-size:20px;margin-bottom:20px}.field{margin-bottom:14px}.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}.field input,.field select{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:14px}button.primary{width:100%;background:var(--brand);color:#fff;border:none;border-radius:6px;padding:10px;font-size:14px;cursor:pointer}button.primary:hover{opacity:.92}button.secondary{background:#fff;border:1px solid var(--border);border-radius:6px;padding:8px 14px;cursor:pointer;font-size:14px}.error-text{color:#dc2626;font-size:13px;margin-top:8px}.app-shell{display:flex;min-height:100vh}.sidebar{width:220px;background:#fff;border-right:1px solid var(--border);padding:20px 12px}.sidebar h2{font-size:15px;padding:0 10px 16px}.sidebar a{display:block;padding:9px 10px;border-radius:6px;color:var(--text);text-decoration:none;font-size:14px;margin-bottom:2px}.sidebar a.active,.sidebar a:hover{background:var(--bg)}.content{flex:1;padding:28px 36px;max-width:900px}.content h1{font-size:22px;margin-bottom:4px}.subtitle{color:var(--muted);margin-bottom:24px;font-size:14px}.card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:20px;margin-bottom:20px}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:12px}.badge.connected{background:#d1fae5;color:#065f46}.badge.pending{background:#fef3c7;color:#92400e}.badge.error{background:#fee2e2;color:#991b1b}table{width:100%;border-collapse:collapse;font-size:14px}table th,table td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--border)}.preview-box{border:1px dashed var(--border);padding:16px;border-radius:8px;background:#fff}.checkbox-row{display:flex;align-items:center;gap:8px;margin-bottom:8px;font-size:14px}.checkbox-row input{width:auto;flex:0 0 auto}.checkbox-row label{display:inline;margin:0;color:inherit;font-size:inherit}