:root{--text:#6b6375;--text-h:#08060d;--bg:#fff;--bg-alt:#f7f6f9;--border:#e5e4e7;--accent:#aa3bff;--accent-bg:#aa3bff1a;--accent-border:#aa3bff80;--green:#1a9c5c;--green-bg:#1a9c5c1a;--red:#d13b3b;--red-bg:#d13b3b1a;--shadow:#0000001a 0 10px 15px -3px, #0000000d 0 4px 6px -2px;--sans: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<=640px){:root{font-size:16px}}@media (prefers-color-scheme:dark){:root{--text:#9ca3af;--text-h:#f3f4f6;--bg:#16171d;--bg-alt:#1c1d25;--border:#2e303a;--accent:#c084fc;--accent-bg:#c084fc26;--accent-border:#c084fc80;--green:#4ade80;--green-bg:#4ade801f;--red:#f87171;--red-bg:#f871711f;--shadow:#0006 0 10px 15px -3px, #00000040 0 4px 6px -2px}}*{box-sizing:border-box}body{margin:0}#root-app{box-sizing:border-box;width:720px;max-width:100%;min-height:100svh;margin:0 auto;padding:32px 24px 64px}@media (width<=640px){#root-app{padding:20px 16px 48px}}h1,h2{font-family:var(--sans);color:var(--text-h);font-weight:500}h1{letter-spacing:-.9px;margin:0 0 8px;font-size:36px}@media (width<=640px){h1{font-size:28px}}h2{margin:0 0 12px;font-size:20px}button{font:inherit}.screen{flex-direction:column;align-items:stretch;display:flex}.subtitle{margin:0 0 24px}button{cursor:pointer;border:1px solid var(--border);background:var(--bg-alt);color:var(--text-h);border-radius:8px;padding:10px 18px;transition:border-color .2s,background .2s}button:hover{border-color:var(--accent-border)}button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}button:disabled{cursor:not-allowed;opacity:.5}button.primary{color:var(--accent);background:var(--accent-bg);border-color:var(--accent-border);font-weight:500}button.link-button{color:var(--text);background:0 0;border:none;padding:4px 0;text-decoration:underline}button.link-button:hover{color:var(--accent)}.field{color:var(--text-h);margin:16px 0 6px;font-size:14px;font-weight:500;display:block}.text-input{width:100%;font:inherit;font-family:var(--mono);border:1px solid var(--border);background:var(--bg-alt);color:var(--text-h);resize:vertical;border-radius:8px;padding:12px;font-size:15px}.text-input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.setup-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px;display:grid}@media (width<=640px){.setup-grid{grid-template-columns:1fr}}.field-group{border:1px solid var(--border);border-radius:8px;flex-direction:column;gap:8px;padding:12px 16px 16px;display:flex}.field-group legend{color:var(--text-h);padding:0 4px;font-size:13px;font-weight:600}.field-group select{font:inherit;border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:6px;padding:6px 8px;font-size:15px}.radio,.checkbox{cursor:pointer;align-items:center;gap:8px;font-size:15px;display:flex}.warning{background:var(--red-bg);color:var(--red);border-radius:8px;margin-top:16px;padding:10px 14px;font-size:14px}.setup-footer{border-top:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;margin-top:28px;padding-top:20px;display:flex}@media (width<=640px){.setup-footer{flex-direction:column;align-items:stretch}}.item-count{font-size:14px}.practice-header{justify-content:space-between;align-items:center;margin-bottom:32px;display:flex}.progress{color:var(--text);font-size:14px}.speak-button{border:2px solid var(--accent-border);background:var(--accent-bg);border-radius:50%;justify-content:center;align-self:center;align-items:center;width:96px;height:96px;font-size:40px;display:flex}.speak-button:hover{background:var(--accent-border)}.speak-hint{text-align:center;margin:10px 0 28px;font-size:13px}.answer-input{font:inherit;text-align:center;border:2px solid var(--border);background:var(--bg-alt);color:var(--text-h);border-radius:8px;padding:14px 16px;font-size:20px}.answer-input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.answer-input.correct{border-color:var(--green)}.answer-input.incorrect{border-color:var(--red)}.word-diff{flex-wrap:wrap;justify-content:center;gap:6px;margin-top:14px;display:flex}.word-diff span{border-radius:6px;padding:4px 10px;font-size:16px}.word-correct{color:var(--green);background:var(--green-bg)}.word-incorrect{color:var(--red);background:var(--red-bg)}.feedback{text-align:center;border-radius:8px;margin-top:16px;padding:10px;font-size:17px;font-weight:500}.feedback.correct{color:var(--green);background:var(--green-bg)}.feedback.incorrect{color:var(--red);background:var(--red-bg)}.practice-actions{justify-content:center;gap:12px;margin-top:24px;display:flex}@media (width<=640px){.practice-actions{flex-wrap:wrap}}.score{color:var(--text-h);margin:0 0 24px;font-size:20px}.mistakes ul{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.mistakes li{background:var(--red-bg);border-radius:8px;flex-direction:column;gap:2px;padding:10px 14px;display:flex}.mistake-correct{color:var(--text-h);font-weight:500}.mistake-input{color:var(--red);font-size:14px}.summary-actions{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}