:root{--paper:#f6f4ef;--ink:#263c36;--muted:#737c73;--line:#dfdfd4;--green:#315b46;--light:#e7ecdf;--orange:#ac6448;--surface:#fffefa;--field:#fbfaf7;--shadow-pop:0 8px 24px #283c3420;--warn-bg:#f6ecdb;--warn-ink:#6b4a1f;--error-bg:#fae9e0;--error-ink:#823f2e;--kanji-known:#315b46;--kanji-seen:#d2e0c6}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px}button,textarea{font:inherit}button{cursor:pointer}button:disabled{opacity:.45;cursor:not-allowed}button:focus-visible,textarea:focus-visible,summary:focus-visible{outline-offset:4px;outline:3px solid #b88847}button{transition:background .15s}button:hover:not(:disabled){filter:brightness(.96)}.shell{min-height:100vh;display:flex}aside{border-right:1px solid var(--line);background:#efeee6;flex-direction:column;flex-shrink:0;width:264px;height:100vh;padding:36px 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