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.explanation-box{padding:var(--space-4);background:#2e7d991a;border:.0625rem solid rgba(46,125,153,.2);border-radius:var(--radius-lg)}.periodic-table-simulation .explanation-box p{margin:0 0 var(--space-4);color:var(--dark-text);font-size:var(--text-sm)}.periodic-table-simulation .quiz-complete{display:flex;flex-direction:column;align-items:center;gap:var(--space-2)}.periodic-table-simulation .quiz-complete svg{color:var(--accent)}.periodic-table-simulation .info-overlay{position:fixed;inset:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:var(--z-modal);padding:var(--space-4)}.periodic-table-simulation .info-modal{width:100%;max-width:37.5rem;background:var(--dark-surface);border:.0625rem solid var(--dark-border);border-radius:var(--radius-2xl);overflow:hidden}.periodic-table-simulation .info-modal-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-4) var(--space-6);border-bottom:.0625rem solid 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