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.75rem;display:flex;justify-content:space-between;align-items:center;background:var(--bg-active)}.dg-board-header h4{margin:0;font-size:.875rem}.dg-board-controls{display:flex;gap:.5rem}.dg-board-canvas-wrapper{background:#f1f5f9;border:1px solid var(--neobrutal-border);padding:.5rem;display:flex;justify-content:center;align-items:center}[data-theme=dark] .dg-board-canvas-wrapper{background:#1e293b}.dg-test-point{fill:#fff;stroke:#0f172a;stroke-width:2;cursor:pointer;transition:r .1s ease,fill .1s ease}.dg-test-point:hover{r:8.5;fill:#fcd34d}.dg-test-point.active-red{fill:#ef4444!important;stroke:#ef4444!important}.dg-test-point.active-black{fill:#334155!important;stroke:#334155!important}.dg-sandbox-status{border:1px solid var(--neobrutal-border);padding:.5rem 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15%,var(--bg-card));border-color:var(--de-accent, #fbbf24);color:var(--de-accent, #fbbf24)}.dg-breadboard-visual-row{display:flex;justify-content:center;margin:1.5rem 0}.dg-breadboard-visual-card{border:1px solid var(--neobrutal-border);border-radius:var(--de-lesson-radius);background:var(--bg-raised);padding:1.25rem;box-shadow:0 1px 3px #00000014,0 1px 2px #0000000f;display:flex;flex-direction:column;gap:.75rem;width:100%;max-width:640px}.dg-breadboard-card-label{display:block;font-size:.875rem;font-weight:800;color:var(--theme-accent);text-transform:uppercase;letter-spacing:.05em}.dg-breadboard-img-container{background:#fff;border:1px solid var(--neobrutal-border);border-radius:var(--de-lesson-radius);overflow:hidden}.dg-breadboard-img-container img{width:100%;height:auto;display:block}.dg-breadboard-visual-card p{font-size:.8125rem;margin:0;line-height:1.4;color:var(--text-main)}.dg-video-card{border:1px solid var(--neobrutal-border);border-radius:var(--de-lesson-radius);background:var(--bg-raised);padding:1.25rem;box-shadow:0 1px 3px #00000014,0 1px 2px #0000000f;margin:1.5rem auto;display:flex;flex-direction:column;gap:.75rem;width:100%;max-width:640px}.dg-video-card-label{display:block;font-size:.875rem;font-weight:800;color:var(--theme-accent);text-transform:uppercase;letter-spacing:.05em}.dg-video-card .video-embed{border:1px solid var(--neobrutal-border)!important;border-radius:var(--de-lesson-radius)!important;margin:.5rem 0!important;box-shadow:none!important}.dg-video-card p{font-size:.8125rem;margin:0;line-height:1.4;color:var(--text-main)}.dg-reset-overlay{position:fixed;inset:0;background:#0009;backdrop-filter:blur(4px);z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s ease}.dg-reset-overlay.open{opacity:1;pointer-events:auto}.dg-reset-modal{background:var(--bg-surface);border:1px solid var(--border-subtle);border-radius:calc(var(--de-lesson-radius) + 4px);box-shadow:0 8px 32px #0006;width:min(90vw,26rem);padding:1.5rem;transform:scale(.95) translateY(8px);transition:transform .2s ease}.dg-reset-overlay.open .dg-reset-modal{transform:scale(1) translateY(0)}.dg-reset-modal-header{display:flex;align-items:center;gap:.625rem;margin-bottom:.75rem}.dg-reset-modal-icon{width:2.25rem;height:2.25rem;border-radius:9999px;background:#ef44441f;display:flex;align-items:center;justify-content:center;flex-shrink:0}.dg-reset-modal-icon svg{color:#ef4444}.dg-reset-modal-title{font-size:.9375rem;font-weight:700;color:var(--text-heading)}.dg-reset-modal-body{font-size:.8125rem;line-height:1.55;color:var(--text-main);margin-bottom:1.25rem}.dg-reset-modal-body strong{color:var(--text-heading)}.dg-reset-modal-actions{display:flex;justify-content:flex-end;gap:.5rem}.dg-reset-modal-btn{border-radius:var(--de-lesson-radius);padding:.5rem 1rem;font-size:.8125rem;font-weight:600;border:1px solid var(--border-subtle);background:var(--bg-raised);color:var(--text-main);cursor:pointer;transition:all .15s ease;font-family:inherit}.dg-reset-modal-btn:hover{border-color:var(--text-muted)}.dg-reset-modal-btn--danger{background:#ef4444;border-color:#ef4444;color:#fff}.dg-reset-modal-btn--danger:hover{background:#dc2626;border-color:#dc2626}[data-theme=dark] .dg-reset-modal{box-shadow:0 8px 40px #0009}.dg-reset-btn{background:none;border:none;color:var(--text-faint);font-size:.6875rem;font-weight:500;cursor:pointer;padding:.25rem .5rem;border-radius:var(--de-lesson-radius);transition:color .15s ease;font-family:inherit;white-space:nowrap}.dg-reset-btn:hover{color:#ef4444}