.mcq-card{--mcq-surface: var(--sl-color-bg-nav);--mcq-text: var(--sl-color-white);--mcq-muted: var(--sl-color-gray-3);--mcq-accent: var(--sl-color-accent);--mcq-border: var(--sl-color-gray-5);--mcq-hover: var(--sl-color-gray-6);--mcq-correct-bg: #14532d;--mcq-correct-border: #4ade80;--mcq-correct-text: #bbf7d0;--mcq-wrong-bg: #7f1d1d;--mcq-wrong-border: #f87171;--mcq-wrong-text: #fecaca;--mcq-code-strong: rgba(255, 255, 255, .15);--mcq-code-soft: rgba(255, 255, 255, .1);color:var(--mcq-text);line-height:1.6;background:var(--mcq-surface);border:1px solid var(--mcq-border);border-radius:12px;padding:20px 22px 8px;margin-bottom:16px;scroll-margin-top:calc(var(--sl-nav-height, 0px) + 138px)}:root[data-theme=light] .mcq-card{--mcq-correct-bg: #dcfce7;--mcq-correct-border: #16a34a;--mcq-correct-text: #14532d;--mcq-wrong-bg: #fee2e2;--mcq-wrong-border: #dc2626;--mcq-wrong-text: #7f1d1d;--mcq-code-strong: rgba(0, 0, 0, .12);--mcq-code-soft: rgba(0, 0, 0, .08)}.mcq-card *{box-sizing:border-box}.mcq-card .mcq-header{display:none;align-items:center;gap:8px;margin-bottom:10px;flex-wrap:wrap}.mcq-card.mcq-in-quiz .mcq-header{display:flex}.mcq-card .mcq-source{font-size:11px;font-weight:600;padding:2px 8px;border-radius:100px;background:var(--mcq-hover);color:var(--mcq-accent);letter-spacing:.02em;font-variant-numeric:tabular-nums;order:1}.mcq-card .mcq-source:empty{display:none}.mcq-card .mcq-num{font-size:11px;font-weight:600;color:var(--mcq-muted);letter-spacing:.08em;text-transform:uppercase;margin-right:auto}.mcq-card .mcq-body{font-size:16px}.mcq-card .mcq-body>:first-child{margin-top:0}.mcq-card .mcq-body>p{margin:0 0 14px;font-weight:500}.mcq-card code:not(pre code){font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-size:.9em;background:var(--mcq-hover);padding:1px 5px;border-radius:4px}.mcq-card .mcq-body .expressive-code{margin:0 0 14px}.mcq-choices{display:flex;flex-direction:column;margin-top:14px;counter-reset:mcq-choice}.mcq-choice{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:12px 4px;cursor:pointer;color:inherit;transition:background .12s,color .12s;line-height:1.5;counter-increment:mcq-choice;border-top:1px solid var(--mcq-border);user-select:none}.mcq-body .expressive-code+.mcq-choices>.mcq-choice:first-of-type{border-top:none}.mcq-choice:focus-visible{outline:2px solid var(--mcq-accent);outline-offset:-2px;border-radius:4px}.mcq-choice .mcq-choice-bullet{flex-shrink:0;width:28px;height:28px;border:1.5px solid var(--mcq-border);display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:var(--mcq-muted);line-height:1;border-radius:50%;transition:background .12s,border-color .12s,color .12s}.mcq-card[data-multi=true] .mcq-choice .mcq-choice-bullet{border-radius:6px}.mcq-choice .mcq-choice-bullet:before{content:counter(mcq-choice,upper-alpha)}.mcq-card[data-multi=true] .mcq-choice.selected .mcq-choice-bullet{background:var(--mcq-accent);border-color:var(--mcq-accent);color:#fff}.mcq-card[data-multi=true] .mcq-choice.selected .mcq-choice-bullet:before{content:"✓"}.mcq-choice .mcq-choice-text{flex:1;min-width:0}.mcq-choice .mcq-choice-text>:first-child{margin-top:0}.mcq-choice .mcq-choice-text>:last-child{margin-bottom:0}.mcq-choice .mcq-choice-text>p{margin:0 0 8px}.mcq-choice .mcq-choice-text>p:last-child{margin-bottom:0}.mcq-choice .mcq-choice-text .expressive-code{margin:6px 0 0}.mcq-choice .mcq-choice-text>.expressive-code:first-child{margin-top:0}.mcq-choice:hover:not([aria-disabled=true]){background:var(--sl-color-accent-low)}.mcq-choice[aria-disabled=true]{cursor:default}.mcq-choice.correct{color:var(--mcq-correct-border)}.mcq-choice.wrong{color:var(--mcq-wrong-border)}.mcq-choice.correct .mcq-choice-bullet{background:var(--mcq-correct-border);border-color:var(--mcq-correct-border);color:#fff}.mcq-choice.correct .mcq-choice-bullet:before{content:"✓"}.mcq-choice.wrong .mcq-choice-bullet{background:var(--mcq-wrong-border);border-color:var(--mcq-wrong-border);color:#fff}.mcq-choice.wrong .mcq-choice-bullet:before{content:"✕"}.mcq-choice.correct code,.mcq-choice.wrong code{background:var(--mcq-code-strong)}.mcq-check{margin-top:14px;margin-bottom:14px;background:var(--mcq-accent);color:#fff;border:none;padding:10px 18px;border-radius:8px;font:inherit;font-weight:500;cursor:pointer;transition:opacity .15s,background .15s;align-self:flex-start}.mcq-check:hover:not(:disabled){opacity:.9}.mcq-check:disabled{opacity:.4;cursor:not-allowed}.mcq-why{margin-top:14px;margin-bottom:14px;padding:12px 14px;background:var(--mcq-hover);border-left:3px solid var(--mcq-accent);border-radius:4px;font-size:14px;color:var(--mcq-text)}.mcq-why>:first-child{margin-top:0}.mcq-why>:last-child{margin-bottom:0}.mcq-why>p{margin:0}.mcq-why code{background:var(--mcq-code-soft)}.mcq-card[data-state=correct] .mcq-why:before{content:"Correct. ";font-weight:700}.mcq-card[data-state=wrong] .mcq-why:before{content:"Not quite. ";font-weight:700}