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mark{transition:none}}:root[data-theme=happy]{color:#343458;background:#fff1cc}[data-theme=happy] .site-header{border-color:#e6c883}[data-theme=happy] .brand-mark{color:#fff;background:#7152b5;border-radius:12px}[data-theme=happy] .balance-note{color:#656080}[data-theme=happy] .setup-card{background:#ffe6d4;border-color:#edbea3}[data-theme=happy] .history{background:#e8dff7;border-color:#cdbbe6}[data-theme=happy] .solver-card{background:#fffefa;border-color:#d8c181;box-shadow:0 16px 42px #8d621c1f}[data-theme=happy] .section-number{color:#6c501b;background:#ffe293}[data-theme=happy] .difficulty-buttons button{color:#49416b;border-color:#efcbb6}[data-theme=happy] .difficulty-buttons button:hover{background:#fff8ec;border-color:#c29bdc}[data-theme=happy] .difficulty-buttons small{color:#746781}[data-theme=happy] .modification-hint,[data-theme=happy] .toggle-row small,[data-theme=happy] .divider{color:#827064}[data-theme=happy] 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mark{color:var(--goth-ink);background:#493565}