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var(--border-strong);width:48px;height:58px;color:var(--brand-secondary);box-shadow:var(--shadow);background:#fff;border-radius:5px;place-items:center;margin-bottom:5px;font-size:11px;font-weight:750;display:grid}.error-message{color:var(--danger);background:#fff7f6;border:1px solid #e8c5c2;border-radius:7px;margin:12px 14px 0;padding:10px 12px;font-size:12px;line-height:1.5}.tools-content{padding:0 18px 22px}.tools-placeholder{border:1px dashed var(--border-strong);color:var(--text-secondary);background:var(--surface-muted);border-radius:8px;padding:16px}.tools-placeholder strong{color:var(--text-primary);margin-bottom:7px;font-size:12px;display:block}.tools-placeholder p{margin:0;font-size:11px;line-height:1.6}@media (max-width:1100px){.workspace-grid{grid-template-columns:190px minmax(0,1fr)}.tools-sidebar{display:none}}@media (max-width:700px){.topbar{gap:8px;min-height:62px;padding:0 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