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button:hover{transform:translateY(-2px);box-shadow:var(--shadow-card)}.circuit-palette button .gate-shape{width:26px;height:18px;flex:0 0 auto}.circuit-canvas{border-radius:var(--radius-md);overflow:hidden;background:radial-gradient(circle at 1px 1px,rgba(32,35,68,.1) 1px,transparent 0) 0 0 / 22px 22px,var(--color-surface-muted)}.circuit-controls{display:flex;gap:.6rem}.circuit-verdict{font-family:var(--font-body)}.circuit-verdict[data-verdict-text]:before{margin-right:.35em}.circuit-builder[data-verdict=correct] .circuit-verdict{color:var(--color-pass)}.circuit-builder[data-verdict=correct] .circuit-verdict:before{content:"✓"}.circuit-builder[data-verdict=incorrect] .circuit-verdict{color:var(--color-fail)}.circuit-builder[data-verdict=incorrect] 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var(--color-border)}.ask-tutor{display:flex;flex-direction:column;gap:.4rem;align-items:flex-start}.ask-tutor__button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-display);font-weight:600;font-size:.92rem;min-height:2.75rem;padding:.6rem 1.4rem;border:none;border-radius:var(--radius-pill);background:var(--color-accent);color:var(--color-on-accent);cursor:pointer;box-shadow:var(--shadow-button);transition:transform var(--dur-hover) var(--ease-spring),background var(--dur-hover) ease}.ask-tutor__button:not(:disabled):hover{transform:translateY(-2px);background:var(--color-accent-hover)}.ask-tutor--unavailable .ask-tutor__button{background:var(--color-surface-muted);color:var(--color-text-muted);box-shadow:inset 0 0 0 1px var(--color-border)}.ask-tutor__note{font-size:var(--font-size-sm);color:var(--color-text-muted);max-width:30rem;line-height:1.4}.consent-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;padding:var(--space-3);background:var(--color-backdrop)}.consent-modal{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:var(--space-5);max-width:32rem;max-height:90vh;overflow:auto}.consent-modal__title{margin:0 0 var(--space-3);font-size:1.25rem}.consent-modal__body{margin:0 0 var(--space-4);color:var(--color-text-muted);line-height:1.55}.consent-modal__actions{display:flex;gap:var(--space-2);flex-wrap:wrap;justify-content:flex-end}.handoff-button{display:inline-flex;align-items:center;gap:.4rem;font-family:var(--font-body);font-size:var(--font-size-sm);font-weight:600;color:var(--color-accent);text-decoration:underline;text-underline-offset:2px;background:none;border:0;padding:var(--space-1) 0;cursor:pointer}.handoff-button:hover{color:var(--color-accent-hover)}.app-conn-status{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.mastery-celebration{position:relative;overflow:hidden;border:none;color:#fff;text-align:center;background:#202344;padding:2.2rem 1.5rem}.mastery-celebration:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;background:var(--gradient-spectrum);opacity:.85;mix-blend-mode:multiply}.mastery-celebration>*{position:relative;z-index:1}.mastery-celebration h1,.mastery-celebration h2,.mastery-celebration h3{color:#fff;text-shadow:0 2px 12px rgba(0,0,0,.35)}.mastery-celebration p,.mastery-celebration li{color:#fff;text-shadow:0 1px 8px rgba(0,0,0,.3)}.mastery-celebration ul{list-style:none;padding:0;display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap}.mastery-celebration li{background:#ffffff2e;border-radius:var(--radius-pill);padding:.3rem .85rem;font-family:var(--font-mono);font-size:.85rem}.mastery-celebration .continue-to-next-lesson,.mastery-celebration .try-the-playground{background:#fff;color:#202344;box-shadow:0 6px 18px #00000040;margin-top:1rem}.mastery-celebration .continue-to-next-lesson:hover,.mastery-celebration .try-the-playground:hover{background:#eceaff}.mastery-celebration .continue-to-next-lesson:disabled{background:#ffffffbf;color:#202344}