.letters[data-astro-cid-qn4mneq7]{gap:var(--s-3);scroll-snap-type:x mandatory;padding-bottom:var(--s-2);-webkit-overflow-scrolling:touch;display:flex;overflow-x:auto}@media (width>=52rem){.letters[data-astro-cid-qn4mneq7]{grid-template-columns:repeat(4,1fr);display:grid;overflow:visible}}.letter[data-astro-cid-qn4mneq7]{scroll-snap-align:start;aspect-ratio:5/6;cursor:pointer;perspective:800px;text-align:center;background:0 0;border:0;flex:0 0 9.5rem;padding:0}.flipper[data-astro-cid-qn4mneq7]{width:100%;height:100%;transform-style:preserve-3d;transition:transform .5s;display:block;position:relative}.letter[data-astro-cid-qn4mneq7][aria-pressed=true] .flipper[data-astro-cid-qn4mneq7]{transform:rotateY(180deg)}.face[data-astro-cid-qn4mneq7]{place-content:center;gap:var(--s-1);padding:var(--s-3);border-radius:var(--radius);backface-visibility:hidden;display:grid;position:absolute;inset:0}.face--front[data-astro-cid-qn4mneq7]{background:var(--birch)}.face--back[data-astro-cid-qn4mneq7]{border:1px solid var(--line);visibility:hidden;background:#fff;transform:rotateY(180deg)}.letter[data-astro-cid-qn4mneq7][aria-pressed=true] .face--back[data-astro-cid-qn4mneq7]{visibility:visible}.letter[data-astro-cid-qn4mneq7][aria-pressed=true] .face--front[data-astro-cid-qn4mneq7]{visibility:hidden}.glyph[data-astro-cid-qn4mneq7]{font-family:var(--font-display);color:var(--ink);font-size:2.75rem}.sound[data-astro-cid-qn4mneq7]{font-size:var(--fs-14);color:var(--ink-soft)}.word[data-astro-cid-qn4mneq7]{font-family:var(--font-display);font-size:var(--fs-20)}.gloss[data-astro-cid-qn4mneq7]{font-size:var(--fs-14)}@media (prefers-reduced-motion:reduce){.letter[data-astro-cid-qn4mneq7]{aspect-ratio:auto}.flipper[data-astro-cid-qn4mneq7]{transform-style:flat;transform:none!important}.face[data-astro-cid-qn4mneq7]{backface-visibility:visible;position:static;transform:none;visibility:visible!important}.face--front[data-astro-cid-qn4mneq7]{margin-bottom:var(--s-2)}}.trust[data-astro-cid-qlv4pxuf] ul[data-astro-cid-qlv4pxuf]{gap:var(--s-3) var(--s-6);max-width:none;font-size:var(--fs-14);margin-block:0;padding:0;list-style:none;display:grid}@media (width>=52rem){.trust[data-astro-cid-qlv4pxuf] ul[data-astro-cid-qlv4pxuf]{grid-template-columns:repeat(2,max-content)}}.trust[data-astro-cid-qlv4pxuf] li[data-astro-cid-qlv4pxuf]{align-items:center;gap:var(--s-2);display:inline-flex}.path[data-astro-cid-b6xmnxid]{text-decoration:none}.path[data-astro-cid-b6xmnxid] h2[data-astro-cid-b6xmnxid]{text-underline-offset:.15em;text-decoration:underline}.path[data-astro-cid-b6xmnxid] p[data-astro-cid-b6xmnxid]{color:var(--ink-soft)}.path[data-astro-cid-b6xmnxid]:hover{border-color:var(--cornflower)}.schools[data-astro-cid-6niayygp]{gap:var(--s-4);flex-wrap:wrap;max-width:none;padding:0;list-style:none;display:flex}.chips[data-astro-cid-g7ueumk4]{gap:var(--s-2);flex-wrap:wrap;max-width:none;padding:0;list-style:none;display:flex}.chips[data-astro-cid-g7ueumk4] a[data-astro-cid-g7ueumk4]{padding:var(--s-1) var(--s-3);border:1px solid var(--line);background:#fff;border-radius:999px;text-decoration:none;display:inline-block}.class-card[data-astro-cid-inx2b4gf] h3[data-astro-cid-inx2b4gf]{font-size:var(--fs-20)}.class-card[data-astro-cid-inx2b4gf] ul[data-astro-cid-inx2b4gf]{padding-left:1.1em}.filters[data-astro-cid-6zwav3ik]{gap:var(--s-4);margin-bottom:var(--s-6);flex-wrap:wrap;align-items:end;display:flex}.filters[data-astro-cid-6zwav3ik] label[data-astro-cid-6zwav3ik]{gap:var(--s-1);font-size:var(--fs-14);display:grid}.filters[data-astro-cid-6zwav3ik] select[data-astro-cid-6zwav3ik]{padding:var(--s-2);border:1px solid var(--line);background:#fff;border-radius:6px}.per-lesson[data-astro-cid-br3bgjuj]{display:block}.sample-listen{border:1px solid var(--line,#d8d8d8);border-radius:.5rem;margin:1.5rem 0;padding:1rem}.sample-listen h2{margin-top:0}.sample-listen .listen{gap:.5rem;margin:0;padding:0;list-style:none;display:grid}.sample-listen .listen li{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.sample-listen .take{min-width:7rem;font-weight:600}.sample-listen audio{max-width:100%;height:2rem}.quiz{border:1px solid var(--line,#d8d8d8);border-radius:.5rem;margin:1rem 0;padding:1rem}.quiz-q{border:0;margin:0 0 1rem;padding:0}.quiz-q legend{margin-bottom:.35rem;font-weight:600}.quiz-opt{padding:.2rem 0;display:block}.quiz-q.quiz-right legend:after{content:" ✓";color:#1a7f37}.quiz-q.quiz-wrong legend:after{content:" ✗";color:#b42318}.quiz-result{margin:.5rem 0 0;font-weight:600}.steps[data-astro-cid-sr7bya6b]{gap:var(--s-4);counter-reset:none;max-width:none;padding:0;list-style:none;display:grid}.steps[data-astro-cid-sr7bya6b] li[data-astro-cid-sr7bya6b]{gap:var(--s-3);grid-template-columns:2.25rem 1fr;align-items:start;display:grid}.num[data-astro-cid-sr7bya6b]{background:var(--cornflower);color:#fff;width:2.25rem;height:2.25rem;font-family:var(--font-mono);border-radius:50%;place-items:center;font-weight:700;display:grid}textarea[data-astro-cid-3owxbnig]{width:100%;font:inherit;font-size:var(--fs-14);padding:var(--s-3);border:1px solid var(--line);border-radius:var(--radius);background:var(--paper)}.compliance[data-astro-cid-bvqe27rb]{gap:var(--s-2) var(--s-4);font-size:var(--fs-14);grid-template-columns:max-content 1fr;max-width:none;display:grid}.compliance[data-astro-cid-bvqe27rb] dt[data-astro-cid-bvqe27rb]{font-weight:700}.compliance[data-astro-cid-bvqe27rb] dd[data-astro-cid-bvqe27rb]{margin:0}@media (width<=40rem){.compliance[data-astro-cid-bvqe27rb]{grid-template-columns:1fr}.compliance[data-astro-cid-bvqe27rb] dt[data-astro-cid-bvqe27rb]{margin-top:var(--s-2)}}@media print{.site-header,.site-footer,.lang-notice{display:none!important}.sheet[data-astro-cid-pdxdzj7u]{padding:0}a[data-astro-cid-pdxdzj7u]{color:inherit;text-decoration:none}}.hp[data-astro-cid-fr7suc3w]{display:none}fieldset[data-astro-cid-fr7suc3w]{border:0;min-width:0;margin:0;padding:0}fieldset[data-astro-cid-fr7suc3w][disabled]{opacity:.6}.field{gap:var(--s-1);min-width:0;max-width:34rem;display:grid}.field>*{min-width:0;max-width:100%}.field input:not([type=checkbox]):not([type=radio]),.field select,.field textarea{padding:var(--s-2) var(--s-3);border:1px solid var(--field-border);background:#fff;border-radius:6px}.field [aria-invalid=true]{border:2px solid var(--kalina)!important}fieldset.field{border:0;margin:0;padding:0}.field input[type=radio],.field input[type=checkbox],.check input[type=checkbox]{width:1.25rem;height:1.25rem;accent-color:var(--cornflower);vertical-align:-.2em}.field .err{color:var(--kalina);font-size:var(--fs-14)}.field .err:empty{display:none}.choices{gap:var(--s-3);flex-wrap:wrap;display:flex}details[data-astro-cid-7synugci] summary[data-astro-cid-7synugci]{cursor:pointer}details[data-astro-cid-7synugci][open] summary[data-astro-cid-7synugci]{margin-bottom:var(--s-3)}