:root{--paper:#f6f4ef;--paper-raised:#fff;--ink:#14243a;--body:#252a30;--muted:#657184;--burgundy:#8e3945;--line:#d8d6d0;--soft:#edeae2;--font-ui:Inter,"Noto Sans KR",sans-serif;--font-editorial:Newsreader,Georgia,serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--body);font-family:var(--font-ui);line-height:1.55}button,input,select{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}a{color:inherit}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--burgundy);outline-offset:3px}[hidden]{display:none!important}.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}.masthead{background:var(--ink);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:18px max(24px,calc((100vw - 1280px)/2));border-bottom:3px solid var(--burgundy)}.wordmark{font-family:var(--font-editorial);font-size:1.55rem;letter-spacing:.035em;text-decoration:none;font-weight:600}.wordmark-dot{color:#d9929a}.masthead nav{display:flex;gap:clamp(12px,3vw,36px);align-items:center}.masthead nav a{font-size:.78rem;font-weight:600;text-decoration:none;letter-spacing:.08em;text-transform:uppercase;color:#d8dfe8}.masthead nav a:hover,.masthead nav a[aria-current]{color:#fff;text-decoration:underline;text-decoration-color:#d9929a;text-underline-offset:7px}.library-page,.lesson-page{max-width:1328px;padding:0 24px;margin:0 auto}.library-page{padding-top:38px}.eyebrow{font-size:.71rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--burgundy);margin:0 0 11px}.rule{display:inline-block;width:30px;border-top:1px solid var(--burgundy);vertical-align:middle;margin:0 10px}.library-hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;align-items:center;min-height:260px;border-top:1px solid var(--ink);border-bottom:1px solid var(--line);overflow:hidden;gap:20px}.library-hero h1,.lesson-head h1{font:500 clamp(2.7rem,5vw,5rem)/1.02 var(--font-editorial);letter-spacing:-.025em;color:var(--ink);margin:0 0 20px}.library-hero h1 em{color:var(--burgundy);font-weight:400}.library-hero p{font-family:var(--font-editorial);font-size:1.32rem;max-width:560px;margin:0;color:#46505a}.library-hero img{width:100%;max-height:255px;object-fit:contain;object-position:bottom}.section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:0 0 22px}.section-head h2,.step-intro h2,.completion-panel h2{font:500 clamp(2rem,3vw,2.8rem)/1.08 var(--font-editorial);letter-spacing:-.015em;color:var(--ink);margin:0}.section-head>p{color:var(--muted);font-size:.83rem;margin:0}.continue-section,.catalog-section{padding:44px 0 8px}.continue-section{border-bottom:1px solid var(--line)}.continue-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.continue-card{display:flex;flex-direction:column;gap:12px;padding:22px;background:var(--soft);border:1px solid var(--line);text-decoration:none;min-width:0}.continue-card strong{font:500 1.55rem/1.2 var(--font-editorial);color:var(--ink)}.continue-card>span:last-child{font-size:.81rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--burgundy)}.continue-card:hover,.catalog-card:hover{border-color:var(--ink)}.library-controls{display:flex;align-items:end;gap:12px;flex-wrap:wrap;padding:0 0 24px}.search-field{position:relative;flex:1 1 320px}.search-field svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:2}.search-field input,.filter-field select{height:45px;border:1px solid #b9bac0;border-radius:4px;background:#fff;color:var(--ink);width:100%}.search-field input{padding:0 15px 0 44px}.filter-field{font-size:.7rem;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.08em;display:grid;gap:5px;min-width:142px}.filter-field select{padding:0 12px;font-size:.84rem;font-weight:500;letter-spacing:0;text-transform:none}.text-button{border:0;background:none;color:var(--burgundy);font-size:.78rem;font-weight:700;letter-spacing:.045em;text-transform:uppercase;padding:12px 8px;text-decoration:underline;text-underline-offset:4px}.text-button:hover{color:var(--ink)}.status-line{color:var(--muted);font-size:.84rem;min-height:1.3em}.status-line:empty{display:none}.library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;padding:10px 0 64px}.catalog-card{background:var(--paper-raised);border:1px solid var(--line);border-radius:8px;overflow:hidden;min-width:0;transition:border-color .15s}.catalog-card a{display:block;text-decoration:none;height:100%}.catalog-thumb{aspect-ratio:16/9;background:#dce0df;position:relative}.catalog-thumb img{width:100%;height:100%;object-fit:cover;display:block}.thumb-language{position:absolute;left:12px;bottom:12px;background:var(--ink);color:#fff;padding:4px 8px;font-size:.67rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em}.catalog-body{padding:22px;display:flex;flex-direction:column;min-height:228px}.catalog-body h3{font:500 1.65rem/1.16 var(--font-editorial);color:var(--ink);margin:0 0 10px}.catalog-excerpt{font-family:var(--font-editorial);font-size:1.04rem;color:#555e66;line-height:1.42;margin:0 0 16px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden}.card-tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:auto}.tag{font-size:.64rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;border:1px solid var(--line);padding:3px 6px;color:var(--muted)}.card-action{display:block;border-top:1px solid var(--line);margin-top:15px;padding-top:12px;font-size:.73rem;letter-spacing:.08em;text-transform:uppercase;font-weight:700;color:var(--burgundy)}.card-action span{float:right}.empty-state{grid-column:1/-1;background:var(--soft);border:1px solid var(--line);padding:38px}.empty-state h3{font:500 1.8rem var(--font-editorial);color:var(--ink);margin:0 0 8px}.empty-state p{color:var(--muted)}.editorial-footer{max-width:1280px;margin:50px auto 0;padding:26px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;color:var(--muted);font-size:.67rem;font-weight:700;letter-spacing:.1em}.editorial-footer a{text-decoration:none}.lesson-page{padding-top:30px}.back-link{font-size:.77rem;letter-spacing:.04em;text-transform:uppercase;font-weight:700;color:var(--burgundy);text-decoration:none}.back-link:hover{text-decoration:underline}.lesson-head{display:flex;justify-content:space-between;align-items:center;gap:24px;padding:28px 0 34px}.lesson-head h1{font-size:clamp(2.2rem,4vw,4rem);margin:0 0 7px;max-width:850px}.lesson-subtitle{font-family:var(--font-editorial);font-size:1.18rem;color:var(--muted);margin:0;max-width:68ch}.outline-button,.primary-button{display:inline-flex;align-items:center;justify-content:center;min-height:43px;border:1px solid var(--ink);padding:10px 17px;border-radius:4px;font-size:.74rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;white-space:nowrap}.outline-button{background:transparent;color:var(--ink)}.outline-button:hover{background:var(--ink);color:#fff}.primary-button{background:var(--ink);color:#fff}.primary-button:hover{background:var(--burgundy);border-color:var(--burgundy)}.stepper{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);margin-bottom:30px}.step-tab{border:0;border-right:1px solid var(--line);background:transparent;display:flex;align-items:center;gap:13px;text-align:left;padding:15px 20px;color:var(--muted)}.step-tab:last-child{border-right:0}.step-tab:hover,.step-tab.is-current{background:var(--soft);color:var(--ink)}.step-tab.is-current{box-shadow:inset 0 3px var(--burgundy)}.step-number{font:500 1.4rem var(--font-editorial);color:var(--burgundy)}.step-tab strong{display:block;font-size:.8rem}.step-tab small{display:block;font-size:.64rem;text-transform:uppercase;letter-spacing:.06em;margin-top:3px}.step-intro{border-bottom:1px solid var(--line);padding:0 0 23px;margin-bottom:23px}.step-intro p:last-child{font-family:var(--font-editorial);font-size:1.15rem;color:var(--muted);margin:8px 0 0}.lesson-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(300px,1fr);gap:20px;align-items:start}.player-frame{aspect-ratio:16/9;background:var(--ink);position:relative;overflow:hidden}.player-frame video,.player-frame .still-media{width:100%;height:100%;object-fit:contain}.player-frame .plyr{height:100%}.playback-tools{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:12px 0}.current-cue{min-height:80px;padding:20px;background:var(--soft);font-family:var(--font-editorial);font-size:1.2rem}.current-cue strong{font-weight:500}.current-cue span{display:block;color:var(--muted);font-size:1rem;margin-top:5px}.reading-panel{border:1px solid var(--line);background:#fff;max-height:540px;overflow:auto}.panel-heading{display:flex;justify-content:space-between;align-items:center;padding:15px 18px;border-bottom:1px solid var(--line)}.panel-heading .eyebrow{margin:0}.panel-heading>span:last-child{font-size:.72rem;color:var(--muted)}.transcript-line{width:100%;display:grid;grid-template-columns:43px minmax(0,1fr);gap:12px;text-align:left;border:0;border-bottom:1px solid var(--line);background:#fff;padding:14px 18px;color:var(--body)}.transcript-line:hover,.transcript-line.is-active{background:var(--soft)}.transcript-line.is-active{border-left:3px solid var(--burgundy)}.transcript-line time{font-size:.68rem;color:var(--burgundy);padding-top:4px}.transcript-line strong{font:400 1.04rem/1.4 var(--font-editorial)}.transcript-line small{display:block;color:var(--muted);margin-top:4px;line-height:1.4}.empty-copy{padding:18px;color:var(--muted)}.step-actions{display:flex;gap:18px;align-items:center;justify-content:flex-end;border-top:1px solid var(--line);padding:24px 0 42px;margin-top:25px}.vocabulary-list{display:grid;gap:12px;max-width:1000px}.vocabulary-card{display:grid;grid-template-columns:50px minmax(0,1fr) auto;gap:16px;align-items:start;padding:21px 24px;background:#fff;border:1px solid var(--line)}.vocabulary-index{font:500 1.7rem var(--font-editorial);color:var(--burgundy)}.vocabulary-card h3{font:500 1.8rem var(--font-editorial);color:var(--ink);margin:0}.word-reading{color:var(--muted);font-size:.85rem;margin:2px 0}.word-meaning{font-family:var(--font-editorial);font-size:1.13rem;margin:9px 0}.vocabulary-card blockquote{border-left:2px solid var(--burgundy);padding-left:12px;margin:13px 0;color:#555e66;font-family:var(--font-editorial)}.word-note{font-size:.82rem;color:var(--muted)}.unavailable-panel{display:flex;align-items:center;gap:34px;padding:30px;background:var(--soft);border:1px solid var(--line)}.unavailable-panel img{width:170px;max-height:190px;object-fit:contain}.unavailable-panel h3{font:500 1.7rem var(--font-editorial);color:var(--ink);margin:0}.unavailable-panel p{max-width:55ch;color:var(--muted)}.completion-panel{margin:20px 0 50px;background:var(--ink);color:#fff;padding:32px}.completion-panel h2{color:#fff}.completion-panel .primary-button{background:#fff;color:var(--ink);margin-top:12px}@media(max-width:900px){.library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lesson-grid{grid-template-columns:1fr}.reading-panel{max-height:420px}.step-tab{padding:12px}.continue-list{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.masthead{padding:13px 16px;gap:8px}.wordmark{font-size:1.25rem}.masthead nav{gap:12px}.masthead nav a{font-size:.63rem}.masthead nav a[href="/bookmarks.html"]{display:none}.library-page,.lesson-page{padding-left:16px;padding-right:16px}.library-hero{grid-template-columns:1fr 85px;min-height:185px}.library-hero h1{font-size:2.4rem}.library-hero p{font-size:1rem}.library-hero img{max-height:160px}.library-grid,.continue-list{grid-template-columns:1fr}.catalog-body{min-height:0}.filter-field{flex:1;min-width:130px}.library-controls .text-button{align-self:end}.lesson-head{align-items:start;flex-direction:column}.stepper{grid-template-columns:repeat(4,minmax(0,1fr))}.step-tab{display:block;text-align:center;padding:11px 3px}.step-number{display:block}.step-tab strong{font-size:.67rem}.step-tab small{font-size:.55rem}.vocabulary-card{grid-template-columns:28px minmax(0,1fr)}.vocabulary-card .word-listen{grid-column:2;justify-self:start}.unavailable-panel{flex-direction:column;align-items:start}.unavailable-panel img{max-height:140px}.editorial-footer{padding:22px 16px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

.empty-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:10px}.empty-state h3{margin:6px 0 0}.empty-art{max-width:148px;height:auto;border:1px solid var(--line);background:var(--paper-raised)}@media(max-width:767px){.empty-art{max-width:112px}}
/* ---- Editorial compatibility for existing learner pages ---- */
h1,h2,h3,h4,h5,h6{font-family:var(--font-editorial);color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:.7em 1.15em;border:1px solid transparent;border-radius:0;background:transparent;color:var(--ink);font:600 .76rem/1.2 var(--font-ui);letter-spacing:.05em;text-transform:uppercase;text-decoration:none;cursor:pointer;text-align:center;transition:background .15s ease,color .15s ease}
.btn:focus-visible{outline:2px solid var(--burgundy);outline-offset:3px}
.btn-primary{background:var(--ink);color:#f6f4ef}
.btn-primary:hover{background:var(--burgundy);color:#fff}
.btn-outline{border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#f6f4ef}
.btn-secondary{border-color:var(--ink);color:var(--ink)}
.btn-secondary:hover{background:var(--ink);color:#f6f4ef}
.btn-ghost{color:var(--ink)}
.btn-ghost:hover{text-decoration:underline;text-decoration-color:var(--burgundy);text-underline-offset:4px}
.btn-danger{border-color:var(--burgundy);color:var(--burgundy)}
.btn-danger:hover{background:var(--burgundy);color:#fff}
.btn-sm{padding:.45em .85em;font-size:.68rem}
.btn-lg{padding:.85em 1.4em;font-size:.82rem}
.input{width:100%;padding:.6rem .8rem;border:1px solid rgba(20,36,58,.25);border-radius:0;background:#fff;color:var(--ink);font:400 .95rem var(--font-ui)}
.input:focus{outline:1.5px solid var(--ink);border-color:var(--ink)}
textarea.input{min-height:92px;resize:vertical}
.input::placeholder{color:#748092}
.badge{display:inline-block;padding:.28em .6em;border:1px solid rgba(116,128,146,.3);background:rgba(237,234,226,.6);color:var(--muted);font:700 .66rem/1.3 var(--font-ui);letter-spacing:.08em;text-transform:uppercase}
.badge--brand{background:var(--ink);color:#f6f4ef;border-color:transparent}
.pill{display:inline-block;padding:.22em .55em;border:1px solid rgba(116,128,146,.3);background:rgba(237,234,226,.6);color:var(--muted);font:600 .64rem/1.3 var(--font-ui);letter-spacing:.08em;text-transform:uppercase}
.card{background:#fff;border:1px solid rgba(20,36,58,.12)}
.card--bordered{border-color:rgba(20,36,58,.12)}
.card--compact{padding:1rem}
.masthead .auth-mount{display:flex;align-items:center;gap:10px;margin-left:auto}
.masthead .btn-ghost{color:#d8dfe8}
.masthead .btn-ghost:hover{color:#fff;text-decoration-color:#d9929a}
.masthead .btn-primary{background:#f6f4ef;color:var(--ink)}
.masthead .btn-primary:hover{background:#fff;color:var(--ink)}
.masthead .btn-outline{border-color:#d8dfe8;color:#d8dfe8}
.masthead .btn-outline:hover{background:#d8dfe8;color:var(--ink)}
.masthead .auth-avatar-btn--compact{background:#f6f4ef;color:var(--ink);border-color:#f6f4ef}
.site-footer{max-width:1328px;margin:0 auto;padding:26px 24px;border-top:1px solid var(--line);font:400 .78rem var(--font-ui);letter-spacing:.05em;color:var(--muted)}
.site-footer__inner{display:flex;gap:10px;align-items:center;justify-content:center}
.site-footer__link{color:var(--ink);text-decoration:none;font-weight:600}
.page-container{max-width:1328px;margin:0 auto;padding:0 24px}
.page-content{padding-top:0}
.relative{position:relative}

.reflect-guide{border:1px solid rgba(20,36,58,.12);background:var(--soft);padding:16px 18px;margin:0 0 18px}.reflect-guide p{margin:0;color:var(--body);font:400 1rem/1.6 var(--font-editorial)}.reflect-field{display:grid;gap:8px}.reflect-field textarea{width:100%;padding:.8rem;border:1px solid rgba(20,36,58,.25);border-radius:0;background:#fff;color:var(--ink);font:400 1rem/1.6 var(--font-editorial);resize:vertical}.reflect-field textarea:focus{outline:1.5px solid var(--ink);border-color:var(--ink)}.reflect-status{min-height:1.2rem;color:var(--muted);font-size:.85rem}.reflect-actions{margin-top:18px}.reflect-result{margin-top:22px;border-top:3px solid var(--ink);padding-top:20px;display:grid;gap:16px}.reflect-block{border:1px solid rgba(20,36,58,.12);background:#fff;padding:18px}.reflect-block ul{margin:8px 0 0;padding-left:18px;color:var(--body);line-height:1.7}.reflect-block blockquote{border-left:3px solid var(--burgundy);margin:8px 0 0;padding:2px 0 2px 16px;color:var(--body);font-style:italic;line-height:1.7}.reflect-disclosure{color:var(--muted);font-size:.82rem;font-style:italic}.reflect-tag{display:inline-block;margin-left:8px;border:1px solid rgba(116,128,146,.3);padding:2px 8px;font:600 .66rem var(--font-ui);letter-spacing:.05em;text-transform:uppercase;color:var(--burgundy)}.reflect-corrections li{margin-bottom:12px}.reflect-corrections p{margin:6px 0 0;color:var(--muted);font-size:.92rem}
.language-switcher,.script-switcher{display:flex;align-items:center;gap:0;flex-wrap:wrap;border-bottom:1px solid var(--line);margin-bottom:20px}.language-switcher>span,.script-switcher>span{padding:10px 14px 10px 0;font-size:.68rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.language-switcher button,.script-switcher button{border:0;border-left:1px solid var(--line);background:transparent;color:var(--ink);padding:10px 14px;font-size:.75rem;font-weight:600}.language-switcher button:hover,.language-switcher button.is-active,.language-switcher button[aria-pressed="true"],.script-switcher button[aria-pressed="true"]{background:var(--ink);color:#fff}.control-status{font-size:.78rem;color:var(--muted)}.cue-pinyin{font-family:var(--font-ui);color:var(--burgundy)!important}.word-forms{margin:3px 0;color:var(--muted);font-size:.78rem}.playback-tools .outline-button[aria-pressed="true"]{background:var(--burgundy);border-color:var(--burgundy);color:#fff}
.translation-choice{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}.translation-choice select{height:38px;border:1px solid var(--ink);border-radius:0;background:#fff;color:var(--ink);padding:0 25px 0 9px;font-size:.78rem;text-transform:none;letter-spacing:0}
.cue-navigator{display:grid;grid-template-columns:72px minmax(0,1fr);align-items:stretch;gap:8px;margin:12px 0}.cue-navigator__direction{display:grid;grid-template-rows:1fr 1fr;gap:6px}.cue-navigator__direction .outline-button{min-width:0;padding:7px 5px;white-space:normal;font-size:.62rem}.cue-navigator__current{position:relative;min-width:0}.cue-navigator__current .current-cue{height:100%;padding-right:92px}.cue-repeat-button{position:absolute;right:10px;top:10px;min-height:30px!important;padding:5px 8px!important;background:var(--paper-raised);font-size:.61rem!important}#stopLoop,#rewatchStopLoop{display:none!important}@media(max-width:620px){.cue-navigator{grid-template-columns:46px minmax(0,1fr)}.cue-navigator__direction .outline-button{padding:6px 3px;font-size:0}.cue-navigator__direction #previousCue::after,.cue-navigator__direction #rewatchPreviousCue::after{content:"←";font-size:1rem}.cue-navigator__direction #nextCue::after,.cue-navigator__direction #rewatchNextCue::after{content:"→";font-size:1rem}.cue-navigator__current .current-cue{padding:14px 14px 52px}.cue-repeat-button{right:9px;top:auto;bottom:9px}}

.lesson-summary{border:1px solid var(--line);border-left:3px solid var(--burgundy);background:#fff;padding:20px 24px;margin:0 0 26px}
.lesson-summary-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:12px}
.lesson-summary-head .eyebrow{margin:0}
.summary-language{margin:0;border-bottom:0;justify-content:flex-end}
.summary-language button{padding:6px 10px;font-size:.68rem;letter-spacing:.05em}
.lesson-summary-text{font-family:var(--font-editorial);font-size:1.13rem;line-height:1.6;color:var(--body);margin:0;max-width:78ch;white-space:pre-line}
.lesson-summary-text.is-empty{color:var(--muted);font-style:italic}
@media(max-width:620px){.lesson-summary{padding:16px 18px}.lesson-summary-head{align-items:flex-start;flex-direction:column;gap:8px}.summary-language{justify-content:flex-start}}
.vocabulary-clip{grid-column:2/-1;width:min(100%,440px);padding-top:12px;border-top:1px solid var(--line)}.vocabulary-clip__frame{aspect-ratio:16/9;background:var(--ink);overflow:hidden}.vocabulary-clip__frame .plyr,.vocabulary-clip__frame video{width:100%;height:100%}.vocabulary-clip__range{font-size:.76rem;color:var(--muted);margin:8px 0 0}@media(max-width:620px){.vocabulary-clip{grid-column:1/-1}}
.vocabulary-clip__subtitle{padding:12px 14px;background:var(--soft);border:1px solid var(--line);border-top:0}.vocabulary-clip__subtitle p{margin:0}.vocabulary-clip__source{font-weight:600;color:var(--ink)}.vocabulary-clip__translation{margin-top:5px!important;font-size:.88rem;color:var(--muted)}
.vocabulary-clip__subtitle{display:flex;align-items:flex-start;gap:12px}.vocabulary-clip__lines{flex:1;min-width:0}.vocabulary-clip__play{flex:none;padding:4px 9px;border:1px solid var(--burgundy);border-radius:4px;background:var(--paper-raised);color:var(--burgundy);font-size:.73rem;font-weight:700;line-height:1.3}.vocabulary-clip__play:hover{background:var(--burgundy);color:#fff}

/* ---- Learn step sub-tabs ---- */
.step-intro--split,
.step-intro--learn,
.step-intro:has(.learn-subtabs) {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
}
.learn-subtabs {
  display: inline-flex;
  align-items: stretch;
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px;
  gap: 4px;
  box-shadow: 0 1px 3px rgba(20, 36, 58, 0.04);
  flex-shrink: 0;
}
.learn-subtab {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--muted);
  text-align: left;
  transition: all 0.15s ease;
  position: relative;
  user-select: none;
  cursor: pointer;
}
.learn-subtab:hover {
  background: var(--soft);
  color: var(--ink);
}
.learn-subtab.is-active,
.learn-subtab[aria-selected="true"] {
  background: var(--paper);
  border-color: var(--line);
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(20, 36, 58, 0.06);
}
.learn-subtab.is-active::after,
.learn-subtab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  top: -1px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--burgundy);
  border-radius: 2px;
}
.learn-subtab:focus-visible {
  outline: 2px solid var(--burgundy);
  outline-offset: 2px;
}
.learn-subtab__badge {
  font-family: var(--font-editorial);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--burgundy);
  line-height: 1;
}
.learn-subtab__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.learn-subtab__body strong {
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink);
  line-height: 1.2;
}
.learn-subtab__count {
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  line-height: 1.2;
}
.learn-subtab.is-active .learn-subtab__count,
.learn-subtab[aria-selected="true"] .learn-subtab__count {
  color: var(--burgundy);
  font-weight: 600;
}
@media (max-width: 760px) {
  .step-intro--split,
  .step-intro--learn,
  .step-intro:has(.learn-subtabs) {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  .learn-subtabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
  .learn-subtab {
    justify-content: center;
    padding: 10px 12px;
  }
}