: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%}.app{flex-direction:column;min-height:100vh;display:flex}.home{flex-direction:column;flex:1;justify-content:center;align-items:center;gap:20px;padding:40px 20px;display:flex}.home h1{margin:0;font-size:3rem}.subtitle{margin-bottom:8px;font-size:1.1rem}.filter-group{align-items:center;gap:12px;display:flex}.filter-group label{color:var(--text);text-align:right;min-width:55px;font-size:.9rem}.filter-buttons{gap:6px;display:flex}.btn-filter{background:var(--social-bg);color:var(--text);border-radius:6px;padding:6px 16px;font-size:.9rem}.btn-filter.active{background:var(--accent);color:#fff}.btn{font-family:var(--sans);cursor:pointer;border:none;border-radius:8px;padding:10px 24px;font-size:1rem;transition:transform .1s,box-shadow .2s}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-start{background:var(--accent);color:#fff;border-radius:10px;margin-top:8px;padding:14px 40px;font-size:1.2rem}.btn-start:hover:not(:disabled){box-shadow:0 4px 16px #00000026}.btn-back{background:var(--social-bg);color:var(--text-h)}.btn-reveal{background:var(--accent);color:#fff;padding:12px 32px;font-size:1.1rem}.btn-correct{color:#fff;background:#22c55e}.btn-incorrect{color:#fff;background:#ef4444}.practice{box-sizing:border-box;flex-direction:column;flex:1;width:100%;max-width:700px;margin:0 auto;padding:20px;display:flex}.practice-header{justify-content:space-between;align-items:center;margin-bottom:40px;display:flex}.round-label{color:var(--text);font-size:.85rem}.score-display{gap:6px;font-size:.95rem;display:flex}.score-correct{color:#22c55e;font-weight:600}.score-divider,.score-total{color:var(--text)}.question-card{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:32px;display:flex}.question-text{color:var(--text-h);max-width:600px;margin:0;font-size:1.35rem;line-height:1.6}.answer-section{flex-direction:column;align-items:center;gap:24px;display:flex}.answer-text{color:var(--accent);margin:0;font-size:1.5rem;font-weight:600}.score-buttons{gap:12px;display:flex}.answer-form{flex-direction:column;align-items:center;gap:16px;width:100%;max-width:400px;display:flex}.answer-input{font-family:var(--sans);border:2px solid var(--border);background:var(--bg);color:var(--text-h);box-sizing:border-box;border-radius:8px;outline:none;width:100%;padding:12px 16px;font-size:1.1rem;transition:border-color .2s}.answer-input:focus{border-color:var(--accent)}.form-buttons{gap:10px;display:flex}.btn-skip{background:var(--social-bg);color:var(--text)}.answer-result{font-size:1.3rem;font-weight:700}.answer-result.correct{color:#22c55e}.answer-result.incorrect{color:#ef4444}.your-answer{color:var(--text);margin:0;font-size:.95rem}