:root{--bg:#f6f2e9;--surface:#fffdf8;--ink:#24283a;--muted:#656879;--line:#dcd8d0;--accent:#17437c;--reading-size:21px;color-scheme:light}
:root[data-theme=dark]{--bg:#0b1120;--surface:#111c2f;--ink:#f2f1ed;--muted:#a7b1c3;--line:#2d3b50;--accent:#7dd3fc;color-scheme:dark}
:root[data-reading-width=wide] body[data-chapter] main{max-width:none}
:root[data-reading-width=wide] .chapter-heading,:root[data-reading-width=wide] .prose{max-width:none}
.reading-controls{flex-wrap:wrap}
.reading-controls output{min-width:42px;text-align:center;font-variant-numeric:tabular-nums}
.reading-controls button[aria-pressed=true]{background:var(--accent);color:var(--surface);border-color:var(--accent)}
.reading-controls button:disabled{opacity:.45;cursor:default}
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