:root{--bg:#fbfaf7;--surface:#fff;--surface-2:#f4f2ed;--text:#1c1d1f;--muted:#5f6368;--border:#e4e1da;--accent:#0f6e5a;--accent-ink:#fff;--accent-soft:#e3f1ec;--like:#0f6e5a;--dislike:#b42318;--focus:#2563eb;--lvl-beginner:#e6f4ea;--lvl-beginner-ink:#1e6b34;--lvl-intermediate:#e8f0fe;--lvl-intermediate-ink:#1d4ed8;--lvl-advanced:#f3e8fd;--lvl-advanced-ink:#7e22ce;--shadow:0 1px 2px #0000000a, 0 2px 8px #0000000a;--serif:"Iowan Old Style", "Charter", "Palatino Linotype", Georgia, serif;--sans:system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--mono:ui-monospace, "SF Mono", Menlo, Consolas, monospace;--radius:10px;color-scheme:light}@media 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40px;font-size:.875rem}.footer-row{flex-wrap:wrap;justify-content:space-between;gap:16px;display:flex}.footer-links{flex-wrap:wrap;gap:16px;display:flex}.footer-links a{color:var(--muted)}.toast{background:var(--text);max-width:calc(100vw - 32px);color:var(--bg);z-index:50;border-radius:8px;padding:10px 16px;font-size:.92rem;position:fixed;bottom:24px;left:50%;transform:translate(-50%);box-shadow:0 6px 24px #0003}.toast a{color:inherit;font-weight:600}.skip:focus{clip:auto;background:var(--surface);z-index:100;width:auto;height:auto;padding:8px 12px;position:fixed;top:12px;left:12px}