*,:before,:after{box-sizing:border-box}body{color:#0f172a;background:#f1f5f9;margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.4}.sandbox-shell{max-width:min(100%,72rem);margin:0 auto;padding:1.25rem 1rem 2rem}.sandbox-navbar{background:#fff;border:1px solid #cbd5e1;border-radius:10px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.75rem 1rem;margin-bottom:1rem;padding:.65rem .85rem;display:flex;box-shadow:0 1px 2px #0f172a0f}.sandbox-navbar-title{color:#0f172a;margin:0;font-size:1.25rem;font-weight:700;line-height:1.2}.sandbox-navbar-actions{flex-shrink:0;align-items:center;gap:.35rem;display:flex}.sandbox-navbar-session{flex-shrink:1;align-items:center;gap:.45rem;min-width:0;display:inline-flex}.sandbox-navbar-email{color:#475569;text-overflow:ellipsis;white-space:nowrap;max-width:min(18rem,42vw);font-size:.8125rem;font-weight:500;overflow:hidden}.sandbox-icon-btn{color:#64748b;cursor:pointer;background:#fff;border:1px solid #cbd5e1;border-radius:8px;justify-content:center;align-items:center;width:2.25rem;height:2.25rem;padding:0;display:inline-flex}.sandbox-icon-btn:hover{color:#475569;background:#f8fafc;border-color:#94a3b8}.sandbox-icon-btn:focus-visible{outline-offset:1px;outline:2px solid #3b82f6}.sandbox-agents-panel{margin-bottom:1.25rem}.sandbox-agents-panel[hidden]{display:none}.sandbox-controls{background:#fff;border:1px solid #cbd5e1;border-radius:10px;margin-bottom:0;padding:1rem 1rem .875rem;box-shadow:0 1px 2px #0f172a0f}.sandbox-controls label{margin-bottom:.35rem;font-size:.875rem;font-weight:600;display:block}#emails-input{width:100%;min-height:4.75rem;font:inherit;resize:vertical;border:1px solid #94a3b8;border-radius:8px;padding:.5rem .625rem}#emails-input:focus{outline-offset:1px;outline:2px solid #3b82f6}.sandbox-actions{flex-wrap:wrap;align-items:center;gap:.5rem;margin-top:.75rem;display:flex}.sandbox-session-hint{background:#fffbeb;border:1px solid #fcd34d;border-radius:8px;margin-bottom:1rem;padding:.75rem .85rem}.sandbox-session-hint-title{color:#92400e;margin:0 0 .35rem;font-size:.875rem;font-weight:700}.sandbox-session-hint-text{color:#78350f;margin:0 0 .65rem;font-size:.8125rem}.sandbox-session-hint-actions{flex-wrap:wrap;align-items:center;gap:.5rem;display:flex}.sandbox-session-hint-fallback{color:#92400e;margin:.55rem 0 0;font-size:.75rem}.sandbox-session-hint-fallback a{color:#1d4ed8;font-weight:600}.sandbox-btn-primary{color:#fff;background:#2563eb;border:none;border-radius:8px;padding:.45rem .9rem;font-weight:600}.sandbox-btn-primary:hover{background:#1d4ed8}.sandbox-btn-secondary{color:#334155;background:#fff;border:1px solid #cbd5e1;border-radius:8px;padding:.45rem .9rem;font-weight:600}.sandbox-btn-secondary:hover{background:#f8fafc;border-color:#94a3b8}button{font:inherit;cursor:pointer}#btn-add-emails{color:#fff;background:#2563eb;border:none;border-radius:8px;padding:.45rem 1rem;font-weight:600}#btn-add-emails:hover{background:#1d4ed8}#btn-add-emails:disabled{opacity:.55;cursor:not-allowed}.monitor-stack{column-count:2;column-gap:.85rem}.monitor-card{break-inside:avoid;page-break-inside:avoid;vertical-align:top;background:#fff;border:1px solid #cbd5e1;border-radius:10px;width:100%;margin-bottom:.65rem;display:inline-block;overflow:hidden;box-shadow:0 1px 3px #0f172a14}@supports (grid-template-rows:masonry){.monitor-stack{grid-template-columns:repeat(2,minmax(0,1fr));grid-template-rows:masonry;column-count:unset;gap:.65rem .85rem;column-gap:unset;display:grid}.monitor-card{break-inside:auto;page-break-inside:auto;width:auto;vertical-align:unset;margin-bottom:0;display:block}}@media (width<=52rem){.monitor-stack{column-count:1}@supports (grid-template-rows:masonry){.monitor-stack{grid-template-columns:1fr}}}.monitor-card-head{background:#f8fafc;border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;gap:.4rem;min-height:0;padding:.12rem .4rem;line-height:1.2;display:flex}.monitor-card-email{word-break:break-all;font-size:.75rem;font-weight:600;line-height:1.2}.monitor-card-remove{color:#94a3b8;background:#fff;border:1px solid #e2e8f0;border-radius:4px;flex-shrink:0;justify-content:center;align-items:center;width:1.5rem;height:1.5rem;padding:0;display:inline-flex}.monitor-card-remove:hover{color:#dc2626;background:#fef2f2;border-color:#fecaca}.monitor-card-remove:focus-visible{outline-offset:1px;outline:2px solid #3b82f6}.monitor-card-body{padding:.5rem .4rem .45rem}.sandbox-auth-loading{flex-direction:column;justify-content:center;align-items:center;min-height:40vh;display:flex}.sandbox-auth-loading-text{color:#475569;margin:0;font-size:.95rem}.sandbox-auth-loading-fallback{margin-top:1rem}.sandbox-auth-loading-fallback a{color:#2563eb}