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var(--border);border-radius:4px;color:var(--text);cursor:pointer}.manim-card-action:hover{background:var(--bg-hover)}.manim-card-action.active{background:var(--accent);color:#fff;border-color:var(--accent)}.chat-panel{width:420px}.workshop-chat-head-actions{display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}.chat-mode-tabs{display:inline-flex;background:var(--bg-surface2);border-radius:6px;padding:2px}.chat-mode-tab{padding:4px 12px;font-size:11px;font-weight:600;letter-spacing:.2px;background:transparent;border:none;border-radius:4px;color:var(--text-dim);cursor:pointer;font-family:inherit;transition:color .12s ease,background .12s ease}.chat-mode-tab:hover:not(:disabled):not(.active){color:var(--text)}.chat-mode-tab.active{background:var(--bg-surface);color:var(--accent)}.chat-mode-tab:disabled{opacity:.4;cursor:not-allowed}.chat-clear-btn{background:transparent;border:none;color:var(--text-dim);font-size:11px;font-weight:500;padding:4px 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