.geometry-lab-shell{display:flex;flex-direction:column;gap:var(--spacing-4)}.geometry-lab-shell--questions{--geometry-lab-question-panel-width:clamp(16rem,24vw,21rem);--geometry-lab-question-board-size:min(100%,32rem,calc(100dvh - 20rem))}.geometry-lab-shell--free{--geometry-lab-free-panel-width:clamp(16rem,23vw,20rem);--geometry-lab-free-board-size:min(100%,33rem,calc(100dvh - 18rem))}.geometry-lab-question-layout{grid-template-columns:minmax(0,var(--geometry-lab-question-panel-width)) minmax(0,1fr)}.geometry-lab-free-layout,.geometry-lab-question-layout{display:grid;gap:var(--spacing-4);align-items:stretch;justify-content:start}.geometry-lab-free-layout{grid-template-columns:minmax(0,var(--geometry-lab-free-panel-width)) 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var(--transition-fast)}.geometry-lab-grid-point--ghost{background:rgba(59,130,246,.28);opacity:0;transform:translate(-50%,-50%) scale(.6)}.geometry-lab-grid-cell--interactive:hover .geometry-lab-grid-point--ghost{opacity:1;transform:translate(-50%,-50%) scale(.86)}.geometry-lab-grid-point--active{opacity:1;transform:translate(-50%,-50%) scale(1)}.geometry-lab-grid-point--playing{background:#2563eb}.geometry-lab-grid-point--error{background:#dc2626}.geometry-lab-grid-point--step_success,.geometry-lab-grid-point--won{background:#16a34a}.geometry-lab-grid-point--free{box-shadow:0 0 0 2px rgba(255,255,255,.82)}.geometry-lab-button-icon{font-size:1.05rem;margin-right:.35rem;vertical-align:middle;line-height:1}.geometry-lab-sidebar-summary-row{display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-3)}.geometry-lab-sidebar-summary-value{font-size:var(--font-size-sm);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.geometry-lab-sidebar-meta,.geometry-lab-sidebar-summary-copy{font-size:var(--font-size-xs);color:var(--color-text-secondary)}.geometry-lab-sidebar-actions{display:flex;flex-direction:column;gap:var(--spacing-2)}.geometry-lab-colour-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--spacing-2)}.geometry-lab-colour-swatch{min-height:2.5rem;border-radius:var(--radius-lg);border:2px solid transparent;cursor:pointer;transition:transform var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast)}.geometry-lab-colour-swatch.is-active,.geometry-lab-colour-swatch:hover{transform:translateY(-1px);border-color:rgba(15,23,42,.85);box-shadow:var(--shadow-sm)}.geometry-lab-detected-shapes{display:flex;flex-direction:column;gap:var(--spacing-2)}.geometry-lab-detected-shape{width:100%;display:flex;justify-content:space-between;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3);border-radius:var(--radius-lg);border:1px solid var(--color-border);background:var(--color-bg-secondary);color:var(--color-text-primary);cursor:pointer;transition:all var(--transition-fast)}.geometry-lab-detected-shape.is-solid{border-color:var(--color-brand-blue-dark);background:rgba(74,144,217,.12)}.geometry-lab-detected-shape 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74px;gap:var(--spacing-4);align-items:start}.geometry-lab-worksheet-number-col{display:flex;justify-content:center}.geometry-lab-worksheet-number{width:2.6rem;height:2.6rem;display:inline-flex;align-items:center;justify-content:center;border-radius:.4rem;background:#111827;color:#fff;font-weight:var(--font-weight-bold)}.geometry-lab-worksheet-body{display:flex;flex-direction:column;gap:var(--spacing-4)}.geometry-lab-worksheet-grid-wrap{width:min(100%,148mm)}.geometry-lab-worksheet-marks{display:flex;flex-direction:column;align-items:center;gap:var(--spacing-2);padding-top:var(--spacing-2);font-size:var(--font-size-sm);color:var(--color-text-secondary)}.geometry-lab-worksheet-mark-box{width:2.25rem;height:2.25rem;border:1px solid rgba(15,23,42,.38)}@media (max-width:900px){.geometry-lab-shell--questions{--geometry-lab-question-board-size:min(100%,760px)}.geometry-lab-shell--free{--geometry-lab-free-board-size:min(100%,760px)}.geometry-lab-free-layout,.geometry-lab-question-layout{grid-template-columns:1fr}.geometry-lab-grid-stage--free .geometry-lab-grid-stage-inner,.geometry-lab-grid-stage--question .geometry-lab-grid-stage-inner{width:min(100%,760px)}.geometry-lab-question-card{grid-template-columns:1fr}.geometry-lab-question-number{width:2.5rem;height:2.5rem}.geometry-lab-status-bar{flex-direction:column;align-items:flex-start}.geometry-lab-colour-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){.geometry-lab-grid-stage{padding:var(--spacing-3)}.geometry-lab-grid-point{width:.56rem;height:.56rem}.geometry-lab-grid-axis-tag,.geometry-lab-grid-label,.geometry-lab-grid-origin{font-size:.58rem}.geometry-lab-worksheet-header{flex-direction:column;align-items:flex-start}.geometry-lab-worksheet-meta{align-items:flex-start}.geometry-lab-worksheet-question{grid-template-columns:1fr}.geometry-lab-worksheet-marks,.geometry-lab-worksheet-number-col{justify-content:flex-start;align-items:flex-start}}@media print{.geometry-lab-shell{gap:0}.geometry-lab-grid-board,.geometry-lab-grid-svg{-webkit-print-color-adjust:exact;print-color-adjust:exact}.geometry-lab-grid-board{background:#ffffff}}