:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--border:#e5e4e7;--code-bg:#f4f3ec;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--social-bg:#f4f3ec80;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--heading:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:18px/145% var(--sans);letter-spacing:.18px;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}@media (width<=1024px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--border:#2e303a;--code-bg:#1f2028;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--social-bg:#2f303a80;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}#social .button-icon{filter:invert()brightness(2)}}#root{text-align:center;border-inline:1px solid var(--border);box-sizing:border-box;flex-direction:column;width:1126px;max-width:100%;min-height:100svh;margin:0 auto;display:flex}body{margin:0}h1,h2{font-family:var(--heading);color:var(--text-h);font-weight:500}h1{letter-spacing:-1.68px;margin:32px 0;font-size:56px}@media (width<=1024px){h1{margin:20px 0;font-size:36px}}h2{letter-spacing:-.24px;margin:0 0 8px;font-size:24px;line-height:118%}@media (width<=1024px){h2{font-size:20px}}p{margin:0}code,.counter{font-family:var(--mono);color:var(--text-h);border-radius:4px;display:inline-flex}code{background:var(--code-bg);padding:4px 8px;font-size:15px;line-height:135%}.start-screen{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:20px;padding:40px 20px;display:flex}.start-screen__title{color:var(--text-h);margin:0;font-size:40px;font-weight:600}.start-screen__desc{color:var(--text);max-width:480px;margin:0;font-size:18px;line-height:1.6}.start-screen__button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;margin-top:12px;padding:14px 40px;font-size:18px;font-weight:600;transition:opacity .2s}.start-screen__button:hover{opacity:.9}.timer{font-family:var(--mono);background:var(--code-bg);border-radius:8px;align-items:center;gap:8px;padding:8px 16px;font-size:24px;transition:background .3s,color .3s;display:flex}.timer--urgent{color:#dc2626;background:#dc26261a;animation:.5s ease-in-out infinite alternate pulse}@keyframes 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.3s;display:flex}.question-card__option:not(:disabled):hover{border-color:var(--accent);background:var(--accent-bg)}.question-card__option--correct{color:#16a34a;background:#16a34a1a;border-color:#16a34a}.question-card__option--wrong{color:#dc2626;background:#dc26261a;border-color:#dc2626}.question-card__option--dimmed{opacity:.4}.question-card__option-key{background:var(--code-bg);width:28px;height:28px;font-family:var(--mono);border-radius:6px;flex-shrink:0;justify-content:center;align-items:center;font-size:14px;font-weight:600;display:flex}.question-card__option--correct .question-card__option-key{background:#16a34a33}.question-card__option--wrong .question-card__option-key{background:#dc262633}.quiz-screen{box-sizing:border-box;flex-direction:column;flex:1;gap:20px;width:100%;max-width:640px;margin:0 auto;padding:32px 20px;display:flex}.quiz-screen__header{justify-content:space-between;align-items:center;display:flex}.quiz-screen__progress,.quiz-screen__score{font-family:var(--mono);color:var(--text);font-size:16px}.result-screen{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:16px;padding:40px 20px;display:flex}.result-screen__title{color:var(--text-h);margin:0;font-size:36px;font-weight:600}.result-screen__score{align-items:baseline;gap:4px;display:flex}.result-screen__score-value{color:var(--accent);font-size:36px;font-weight:700;font-family:var(--mono)}.result-screen__score-divider{color:var(--text);font-size:36px}.result-screen__score-total{color:var(--text);font-size:36px;font-family:var(--mono)}.result-screen__pct{color:var(--text);margin:0;font-size:18px}.result-screen__button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;margin-top:12px;padding:14px 40px;font-size:18px;font-weight:600;transition:opacity .2s}.result-screen__button:hover{opacity:.9}.app{flex-direction:column;min-height:100svh;display:flex}