.ex-page[data-astro-cid-d3ehc64x]{padding-block:var(--space-12) var(--space-20)}.ex-header[data-astro-cid-d3ehc64x]{margin-bottom:var(--space-10)}.ex-header-meta[data-astro-cid-d3ehc64x]{display:flex;flex-wrap:wrap;gap:var(--space-2);margin-bottom:var(--space-4)}.ex-header[data-astro-cid-d3ehc64x] h1[data-astro-cid-d3ehc64x]{font-size:var(--text-3xl);margin-bottom:var(--space-3)}.ex-header[data-astro-cid-d3ehc64x] p[data-astro-cid-d3ehc64x]{font-size:var(--text-lg);color:var(--color-text-muted);margin-bottom:var(--space-6)}.tip-card[data-astro-cid-d3ehc64x]{border-left:3px solid var(--color-primary);background:var(--color-bg-subtle);padding:var(--space-4) var(--space-5);border-radius:var(--radius-md);margin-bottom:var(--space-6);font-size:var(--text-sm);color:var(--color-text-muted)}.tip-card[data-astro-cid-d3ehc64x] strong[data-astro-cid-d3ehc64x]{color:var(--color-text);display:block;margin-bottom:var(--space-2)}.tip-card[data-astro-cid-d3ehc64x] ul[data-astro-cid-d3ehc64x]{margin:0;padding-left:var(--space-5);display:flex;flex-direction:column;gap:var(--space-1)}.ex-progress-bar[data-astro-cid-d3ehc64x]{height:6px;background:var(--color-border);border-radius:var(--radius-pill);overflow:hidden;margin-bottom:var(--space-2)}.ex-progress-fill[data-astro-cid-d3ehc64x]{height:100%;background:var(--color-primary);border-radius:var(--radius-pill);transition:width .4s ease}.ex-progress-label[data-astro-cid-d3ehc64x]{font-size:var(--text-sm);color:var(--color-text-muted)}.exercise-item[data-astro-cid-d3ehc64x]{max-width:700px}.ex-number[data-astro-cid-d3ehc64x]{font-size:var(--text-sm);font-weight:600;color:var(--color-text-subtle);margin-bottom:var(--space-4);font-family:var(--font-mono)}.ex-question[data-astro-cid-d3ehc64x]{font-size:var(--text-xl);font-weight:600;color:var(--color-text);line-height:var(--leading-snug);margin-bottom:var(--space-6)}.ex-options[data-astro-cid-d3ehc64x]{display:flex;flex-direction:column;gap:var(--space-3);list-style:none}.option-btn[data-astro-cid-d3ehc64x]{width:100%;display:flex;align-items:flex-start;gap:var(--space-4);padding:var(--space-4) var(--space-5);border:2px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-bg);text-align:left;font-size:var(--text-base);color:var(--color-text);cursor:pointer;transition:border-color .15s,background .15s}.option-btn[data-astro-cid-d3ehc64x]:hover:not(:disabled){border-color:var(--color-primary);background:var(--color-primary-light)}.option-btn[data-astro-cid-d3ehc64x].correct{border-color:var(--color-success);background:#dcfce7;color:#14532d}.option-btn[data-astro-cid-d3ehc64x].incorrect{border-color:var(--color-error);background:#fee2e2;color:#7f1d1d}.option-letter[data-astro-cid-d3ehc64x]{display:flex;align-items:center;justify-content:center;width:1.75rem;height:1.75rem;border-radius:var(--radius-md);background:var(--color-bg-muted);font-family:var(--font-mono);font-size:var(--text-sm);font-weight:700;flex-shrink:0;color:var(--color-text-muted);transition:background .15s,color .15s}.option-btn[data-astro-cid-d3ehc64x].correct .option-letter[data-astro-cid-d3ehc64x]{background:var(--color-success);color:#fff}.option-btn[data-astro-cid-d3ehc64x].incorrect .option-letter[data-astro-cid-d3ehc64x]{background:var(--color-error);color:#fff}.ex-feedback[data-astro-cid-d3ehc64x]{margin-top:var(--space-5);padding:var(--space-5);border-radius:var(--radius-lg);border:1px solid var(--color-border);background:var(--color-bg-subtle)}.feedback-text[data-astro-cid-d3ehc64x]{font-weight:700;font-size:var(--text-base);margin-bottom:var(--space-3)}.feedback-text[data-astro-cid-d3ehc64x].correct-feedback{color:var(--color-success)}.feedback-text[data-astro-cid-d3ehc64x].incorrect-feedback{color:var(--color-error)}.feedback-explanation[data-astro-cid-d3ehc64x]{font-size:var(--text-sm);color:var(--color-text-muted);line-height:var(--leading-relaxed)}.ex-actions[data-astro-cid-d3ehc64x]{margin-top:var(--space-6)}.results-screen[data-astro-cid-d3ehc64x]{max-width:480px;text-align:center;padding:var(--space-10)}.results-score[data-astro-cid-d3ehc64x]{font-size:var(--text-5xl);font-weight:800;color:var(--color-primary);line-height:1;margin-bottom:var(--space-4)}.results-msg[data-astro-cid-d3ehc64x]{font-size:var(--text-lg);color:var(--color-text-muted);margin-bottom:var(--space-8)}.results-actions[data-astro-cid-d3ehc64x]{display:flex;flex-direction:column;gap:var(--space-3);align-items:center}.results-next[data-astro-cid-d3ehc64x]{margin-top:var(--space-6);font-size:var(--text-sm);color:var(--color-text-muted)}.results-next[data-astro-cid-d3ehc64x] a[data-astro-cid-d3ehc64x]{color:var(--color-primary)}