:root{--lab-bg:#f3f4f6;--lab-card-bg:#fff;--lab-text:#1f2937;--lab-text-sub:#6b7280;--lab-accent:#2563eb;--lab-accent-hover:#1d4ed8;--lab-border:#d1d5db;--lab-radius:8px;--lab-radius-lg:12px;--lab-shadow:0 2px 6px rgba(0, 0, 0, 0.08);--lab-font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--lab-mono:"SF Mono","Cascadia Code",Consolas,"Courier New",monospace}body{margin:0;font-family:var(--lab-font);background:var(--lab-bg);color:var(--lab-text);line-height:1.6}h2{margin:0 0 16px;font-weight:600}h3{margin:0 0 12px;font-weight:600;font-size:16px}.lab-subtitle{margin:0 0 18px;color:var(--lab-text-sub);font-size:14px}a{color:var(--lab-accent);text-decoration:none}a:hover{text-decoration:underline}.lab-container{max-width:1200px;margin:0 auto;padding:20px}.lab-card{background:var(--lab-card-bg);padding:20px;border-radius:var(--lab-radius-lg);box-shadow:var(--lab-shadow)}.lab-btn{display:inline-block;padding:8px 16px;font-size:14px;cursor:pointer;border:none;border-radius:var(--lab-radius);background:var(--lab-accent);color:#fff;font-family:var(--lab-font);transition:background .2s}.lab-btn:hover{background:var(--lab-accent-hover)}.lab-btn.secondary{background:#e5e7eb;color:var(--lab-text)}.lab-btn.secondary:hover{background:#d1d5db}.lab-btn-sm{padding:6px 10px;font-size:14px;cursor:pointer;border-radius:var(--lab-radius);background:#e5e7eb;border:none;font-family:var(--lab-font);transition:background .2s;color:var(--lab-text)}.lab-btn-sm:hover{background:#d1d5db}input[type=number],input[type=search],input[type=text],select,textarea{padding:9px 10px;border:1px solid var(--lab-border);border-radius:var(--lab-radius);font-size:14px;font-family:var(--lab-font);outline:0;box-sizing:border-box;background:#fff;color:var(--lab-text);transition:border-color .2s}input:focus,select:focus,textarea:focus{border-color:var(--lab-accent);box-shadow:0 0 0 1px rgba(37,99,235,.15)}.lab-table{width:100%;border-collapse:collapse}.lab-table td,.lab-table th{padding:8px 10px;border-bottom:1px solid #e5e7eb;font-size:14px;text-align:left}.lab-table th{background:#f9fafb;color:#4b5563;font-weight:500;white-space:nowrap}.lab-badge{display:inline-block;padding:2px 8px;font-size:13px;background:#e5e7eb;border-radius:6px;font-family:var(--lab-mono);color:#374151}.lab-footer{text-align:center;color:var(--lab-text-sub);font-size:13px;padding:20px 0;margin-top:20px}.lab-footer a{color:var(--lab-accent)}.lab-footer a:hover{text-decoration:underline}.lab-back{display:inline-block;margin-bottom:16px;padding:6px 12px;font-size:14px;color:var(--lab-accent);text-decoration:none;background:#e0e7ff;border-radius:var(--lab-radius);transition:background .2s}.lab-back:hover{background:#c7d2fe}.lab-alert{background:#fee2e2;border-left:4px solid #dc2626;color:#b91c1c;padding:12px 16px;border-radius:var(--lab-radius);font-size:14px;line-height:1.6}.lab-alert a{color:var(--lab-accent)}.lab-row{display:flex;gap:12px}.lab-row>*{flex:1}.lab-field{margin-bottom:10px}.lab-field label{display:block;margin-bottom:4px;font-weight:500;font-size:14px;color:var(--lab-text)}.lab-muted{color:var(--lab-text-sub);font-size:13px}.lab-mono{font-family:var(--lab-mono)}.lab-hidden{display:none!important}.lab-text-center{text-align:center}.lab-text-sm{font-size:13px}.lab-mt{margin-top:16px}.lab-mb{margin-bottom:16px}@media (max-width:700px){.lab-row{flex-direction:column;gap:0}}