@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:400 600;font-display:swap;src:url(/fonts/source-serif-4-regular.woff2) format("woff2")}@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:400 600;font-display:swap;src:url(/fonts/source-serif-4-italic.woff2) format("woff2")}:root{--bg: #f6f1e7;--surface: #fffdf8;--border: #e3dccd;--ring: #c9c0ae;--text: #1f1b14;--text-soft: #4f4839;--muted: #6b6355;--accent: #c9ac55;--accent-ink: #7a6220;--accent-soft: rgba(201, 172, 85, .42);--on-accent: #1a160c;--display: "Source Serif 4", Georgia, serif;--ui: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;color-scheme:light}@media(prefers-color-scheme:dark){:root{--bg: #15130f;--surface: #1e1b16;--border: #2e2a23;--ring: #4a443a;--text: #ece5d6;--text-soft: #b5ad9e;--muted: #9c9383;--accent: #c9ac55;--accent-ink: #c9ac55;--accent-soft: rgba(201, 172, 85, .28);--on-accent: 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var(--accent-ink)}.lesson-copy{min-width:0;display:grid;gap:3px}.lesson-title{position:relative;z-index:0;justify-self:start;font-size:17px;line-height:1.25}.lesson-row.done .lesson-title{color:var(--text-soft)}.lesson-row.next .lesson-title{font-weight:600}.lesson-row.next .lesson-title:after{position:absolute;z-index:-1;right:-5px;bottom:.08em;left:-5px;height:.48em;content:"";background:var(--accent-soft);border-radius:2px;transform:rotate(-1.2deg)}.lesson-preview{min-width:0;overflow:hidden;color:var(--muted);font:italic 400 16px/1.25 var(--display);text-overflow:ellipsis;white-space:nowrap}.lesson-count{color:var(--muted);font-size:14px;text-align:right;white-space:nowrap}.search input{width:100%;min-height:48px;padding:0 14px;font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:8px}.search input:focus-visible,.form input:focus-visible{outline:3px solid 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.option.wrong{animation:nudge .3s ease}@keyframes nudge{25%{transform:translate(-4px)}75%{transform:translate(4px)}}.match{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:20px}.match-col{display:grid;gap:10px;align-content:start}.match .option{justify-content:center;text-align:center;font-size:.98rem;padding:10px}.lesson-footer{position:sticky;bottom:0;margin:0 -16px;padding:14px 16px max(16px,env(safe-area-inset-bottom));background:var(--bg);border-top:1px solid var(--border)}.lesson-footer.good,.lesson-footer.bad{background:var(--accent-soft);border-top-color:var(--accent-ink)}.feedback{margin-bottom:12px;font-weight:600}.lesson-footer.good .feedback,.lesson-footer.bad .feedback{color:var(--accent-ink)}.lesson-footer .feedback strong{color:var(--text)}.feedback .say{font-weight:400}.feedback-hint{display:block;font-weight:400;color:var(--muted);font-size:.9rem;margin-top:2px}.done-stage h1{margin:0 0 4px;font:600 48px/1.05 var(--display);letter-spacing:-.01em}.learned li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--border)}.learned .target{font-size:1.1rem}.learned-meaning{color:var(--muted);text-align:right}.form{display:grid;gap:16px}.form label{display:grid;gap:6px;font-weight:600;font-size:.95rem}.form input{min-height:48px;padding:0 14px;font:400 1rem var(--ui);color:var(--text);background:var(--surface);border:1px solid var(--border);border-radius:8px}.field-hint{font-weight:400;color:var(--muted);font-size:.85rem}@media(max-width:420px){.course-heading,.done-stage h1{font-size:42px}.lesson-row{gap:12px}.lesson-count{font-size:13px}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}