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18px;border-radius:18px;font-size:16.5px;line-height:1.5}.feedback-title{font-weight:700;font-size:18px}.feedback-right{background:var(--success-soft);color:#164d34}.feedback-wrong{background:#fff1e3;color:#6b3209}.feedback-info{background:#f4f3f1;color:var(--ink-soft)}.player-nav{display:flex;justify-content:space-between;gap:12px;padding-top:8px;border-top:1px solid var(--line-soft)}.player-nav .btn{min-width:120px}@media (max-width:919px){.player-card{min-height:0}}.review-page{display:flex;flex-direction:column;gap:18px}.review-card{width:100%}.review-skill{margin:0 0 6px}.skill-name a{color:inherit;text-decoration:none}.skill-name a:hover{text-decoration:underline}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.learn,.prog{display:flex;flex-direction:column;gap:18px;min-width:0}.learn-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:12px 4px 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input::-webkit-search-cancel-button{display:none}.search-key{padding:2px 9px;border:1px solid var(--line);border-radius:8px;font-family:inherit;font-size:13px;color:var(--faint)}.search-clear{width:34px;height:34px;flex:none;border:0;border-radius:50%;background:var(--canvas);color:var(--ink-soft);font-size:20px;line-height:1;cursor:pointer}.segmented{display:flex;gap:2px;height:var(--tool-h,60px);padding:5px;border-radius:999px;background:var(--surface);box-shadow:0 1px 2px rgba(20,20,20,.04),0 0 0 1px var(--line-soft)}.segmented button{height:100%;border:0;border-radius:999px;padding:0 18px;background:transparent;font:inherit;font-size:15px;font-weight:500;color:var(--ink-soft);cursor:pointer;white-space:nowrap}.segmented button.is-on{background:var(--ink);color:var(--surface)}.learn-layout{display:grid;grid-template-columns:minmax(230px,290px) minmax(0,1fr);grid-gap:18px;gap:18px;align-items:start}.unit-rail{position:-webkit-sticky;position:sticky;top:16px;display:flex;flex-direction:column;gap:2px;padding:10px;border-radius:var(--radius-panel);background:var(--surface);box-shadow:0 1px 2px rgba(20,20,20,.04)}.unit-rail-item{display:grid;grid-template-columns:32px minmax(0,1fr) auto;align-items:center;grid-gap:12px;gap:12px;padding:10px;border-radius:16px;color:var(--ink);text-decoration:none}.unit-rail-item:hover{background:var(--canvas)}.unit-rail-num{width:32px;height:32px;display:grid;place-items:center;border-radius:50%;background:var(--brand-soft);color:var(--brand-ink);font-size:13px;font-weight:700}.unit-rail-text{display:flex;flex-direction:column;gap:7px;min-width:0}.unit-rail-title{font-size:14px;font-weight:500;line-height:1.3}.lc-bar,.unit-rail-text .progress{height:4px}.unit-rail-count{font-size:12px;color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.learn-main{gap:30px;min-width:0}.continue-card,.learn-main{display:flex;flex-direction:column}.continue-card{gap:8px;padding:26px 30px;border-radius:var(--radius-card);background:linear-gradient(120deg,var(--brand-soft) 0,var(--surface) 75%);box-shadow:0 1px 2px rgba(20,20,20,.04);color:var(--ink);text-decoration:none}.continue-card-title{font-size:clamp(22px,2.6vw,30px);font-weight:500;letter-spacing:-.02em;line-height:1.15}.continue-card-goal{max-width:70ch;font-size:16px;color:var(--ink-soft)}.continue-card-foot{display:flex;align-items:center;gap:18px;margin-top:8px}.continue-card-foot .progress{flex:1 1;max-width:420px}.unit-block{scroll-margin-top:16px}.unit-block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;padding:0 4px 12px}.unit-block-head 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(max-width:1099px){.learn-layout{grid-template-columns:minmax(0,1fr)}.unit-rail{position:static;flex-direction:row;gap:8px;padding:0;overflow-x:auto;background:none;box-shadow:none;scrollbar-width:none}.unit-rail::-webkit-scrollbar{display:none}.unit-rail-item{flex:none;grid-template-columns:28px auto auto;gap:8px;padding:8px 14px 8px 8px;border-radius:999px;background:var(--surface);box-shadow:0 1px 2px rgba(20,20,20,.04)}.unit-rail-num{width:28px;height:28px}.unit-rail-title{white-space:nowrap}.unit-rail-text .progress{display:none}}@media (max-width:599px){.learn-stats{width:100%}.learn-stats>div{flex:1 1;min-width:0;padding:10px 14px}.segmented{width:100%}.segmented button{flex:1 1;padding:0 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.tile-num{color:var(--review)}.mbar{display:flex;gap:2px;height:12px;border-radius:999px;overflow:hidden;background:var(--line-soft)}.mbar>span{min-width:3px}.mbar-proficient{background:var(--success)}.mbar-developing{background:var(--brand)}.mbar-emerging{background:var(--faint)}.mbar-needs_review{background:var(--review)}.mbar-not_started{background:var(--line)}.prog-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,380px);grid-gap:16px;gap:16px;align-items:start}.prog-units{display:flex;flex-direction:column;gap:12px;min-width:0}.prog-unit{padding:0}.prog-unit>summary{display:grid;grid-template-columns:minmax(0,1fr) minmax(160px,320px) 20px;align-items:center;grid-gap:20px;gap:20px;padding:22px 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.lc-status{margin-left:auto}.prog-skills{display:flex;flex-direction:column;gap:2px;list-style:none;padding-left:38px}.prog-skills li{display:grid;grid-template-columns:10px minmax(0,1fr) auto auto;align-items:center;grid-gap:12px;gap:12px;padding:8px 10px;border-radius:12px;font-size:14px;color:var(--ink-soft)}.prog-skills li:hover{background:var(--canvas)}.prog-skill-text{overflow-wrap:anywhere}.prog-due{font-size:12px;color:var(--muted);white-space:nowrap}.prog-side{position:-webkit-sticky;position:sticky;top:16px;gap:16px;min-width:0}.prog-side,.side-list{display:flex;flex-direction:column}.side-list{gap:14px;list-style:none}.side-list li{display:flex;align-items:flex-start;gap:12px}.side-list.levels .dot{margin-top:5px}.side-text{display:flex;flex-direction:column;gap:2px;min-width:0;font-size:15px;font-weight:500}.side-text .meta{font-size:13px;font-weight:400}.side-icon{width:34px;height:34px;flex:none;display:grid;place-items:center;border-radius:50%}.side-icon.is-due{background:var(--review-soft);color:var(--review)}.side-date{flex:none;min-width:58px;padding:6px 8px;border-radius:10px;background:var(--canvas);font-size:12px;font-weight:600;text-align:center;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}@media (max-width:719px){.prog-unit>summary{grid-template-columns:minmax(0,1fr) 20px;padding:20px}.prog-unit-side{grid-column:1;grid-row:2}.prog-lessons{padding:0 16px 18px}.prog-skills{padding-left:0}.prog-skills li{grid-template-columns:10px minmax(0,1fr) auto;padding:8px 6px}.prog-due{grid-column:2/-1;grid-row:2}}@media (max-width:1099px){.prog-layout{grid-template-columns:minmax(0,1fr)}.prog-side{position:static}}@media (max-width:599px){.prog-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.prog-tiles .tile:last-child{grid-column:1/-1}}