: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%}#root{text-align:center;max-width:1280px;margin:0 auto;padding:2rem;font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif}body{color:#333;background-color:#f4f6f9;place-items:center;min-width:320px;min-height:100vh;margin:0;display:flex}.quiz-container{text-align:left;background:#fff;border-radius:16px;width:90%;max-width:480px;margin:0 auto;padding:2.5rem;box-shadow:0 10px 25px #00000014}.quiz-container h1{text-align:center;color:#1a1a1a;margin-top:0;margin-bottom:1.5rem;font-size:1.6rem}.quiz-container h2{text-align:center;color:#444;margin-bottom:1.2rem;font-size:1.2rem}#auth-screen{flex-direction:column;gap:1rem;display:flex}#auth-screen input{box-sizing:border-box;border:1.5px solid #e2e8f0;border-radius:8px;outline:none;width:100%;padding:.8rem 1rem;font-size:1rem;transition:border-color .2s,box-shadow .2s}#auth-screen input:focus{border-color:#0070f3;box-shadow:0 0 0 3px #0070f326}.button-group{gap:.8rem;margin-top:.5rem;display:flex}button{cursor:pointer;border:none;border-radius:8px;width:100%;padding:.8rem;font-size:1rem;font-weight:600;transition:background-color .2s,transform .1s}button:active{transform:scale(.98)}.btn-primary{color:#fff;background-color:#0070f3}.btn-primary:hover{background-color:#0051a8}.btn-secondary{color:#334155;background-color:#e2e8f0}.btn-secondary:hover{background-color:#cbd5e1}.options{flex-direction:column;gap:.8rem;margin-top:1rem;display:flex}.option-btn{color:#334155;text-align:left;cursor:pointer;background:#fff;border:2px solid #f1f5f9;border-radius:10px;padding:.9rem 1rem;font-size:.98rem;transition:all .2s}.option-btn:hover:not(:disabled){color:#0070f3;background:#f8fafc;border-color:#0070f3}.option-btn.correct{color:#15803d!important;background:#dcfce7!important;border-color:#22c55e!important}.option-btn.wrong{color:#b91c1c!important;background:#fee2e2!important;border-color:#ef4444!important}.progress{color:#64748b;margin-bottom:.5rem;font-size:.85rem}.timer{color:#ef4444;margin-bottom:1rem;font-size:.9rem;font-weight:700}.question{color:#0f172a;margin-bottom:1.2rem;font-size:1.1rem;font-weight:600;line-height:1.5}