/* Comprehension quiz pages */
.quiz-shell{max-width:52rem;margin:0 auto;padding:2rem 1.5rem 4rem}
.quiz-header{display:flex;justify-content:space-between;align-items:flex-start;gap:1.5rem;flex-wrap:wrap;margin-bottom:2rem}
.quiz-header h1{margin:.5rem 0 .25rem}
.quiz-header p{color:var(--muted,#5b6472)}
.quiz-question{padding:1.25rem 0;border-bottom:1px solid var(--border,#eef0f3)}
.quiz-question-text{margin:0 0 .9rem;font-weight:600}
.quiz-question-label{display:block;font-size:.85rem;font-weight:600;color:var(--muted,#5b6472);text-transform:uppercase;letter-spacing:.04em;margin-bottom:.35rem}
.quiz-question.correct .quiz-question-label{color:#15803d}
.quiz-question.wrong .quiz-question-label{color:#dc2626}
.quiz-options{display:grid;gap:.6rem}
.quiz-option{display:flex;align-items:flex-start;gap:.6rem;padding:.7rem .9rem;border:1px solid var(--border,#d4d9e0);border-radius:.6rem;background:var(--surface,#fff);cursor:pointer}
.quiz-option:hover{border-color:var(--accent,#3b82f6)}
.quiz-option input{margin-top:.2rem;flex:none}
.quiz-option.is-correct{border-color:#15803d;background:#f0fdf4}
.quiz-option.is-wrong{border-color:#dc2626;background:#fef2f2}
.quiz-explanation{margin:.9rem 0 0;padding:.75rem .9rem;border-left:3px solid var(--accent,#3b82f6);background:var(--surface-alt,#f8fafc);color:var(--muted,#5b6472);font-size:.95rem}
.quiz-submit-bar{margin-top:2rem;display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;border-top:2px solid var(--border,#e5e7eb);padding-top:1.5rem}
.quiz-score{font-weight:700;font-size:1.1rem;margin:0}
.quiz-actions{display:flex;align-items:center;gap:1rem}
.quiz-error{color:#dc2626;font-weight:600;width:100%;margin:0 0 .75rem}