@font-face{font-family:Hangul;src:local('Malgun Gothic'),local('Apple SD Gothic Neo')}*{box-sizing:border-box}body{margin:0;background:#faf9f5;color:#243d39;font-family:Hangul,'Segoe UI',sans-serif;font-size:14px}button,input,select{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{cursor:default;opacity:.55}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #af91cf;outline-offset:4px}button{color:inherit}small{display:block;font-size:11px;font-weight:400;color:#818983;line-height:1.6}h1,h2,h3,p{margin:0}h2{font-size:17px}h2 small{margin-top:5px}a{color:inherit}button{border:0}button:hover{filter:brightness(.98)}[hidden]{display:none!important}.app-shell{display:grid;grid-template-columns:246px minmax(0,1fr);min-height:100vh}.sidebar{border-right:1px solid #e7e9e0;padding:30px 22px 24px;background:#fffdf7;display:flex;flex-direction:column}.brand img{width:190px;height:auto;display:block;margin:4px auto 36px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:2px;color:#809084;margin-bottom:10px}.sidebar h2{font-size:20px;margin-bottom:23px}.sidebar nav{display:grid;gap:7px}.lesson{width:100%;padding:11px 9px;display:flex;gap:12px;text-align:left;background:transparent;border:1px solid transparent;border-radius:13px;align-items:center}.lesson-number{width:30px;height:30px;border-radius:10px;background:#f0efe9;color:#8a8e84;display:grid;place-items:center;font-size:12px;flex-shrink:0}.lesson strong{font-size:12px;display:block}.lesson small{font-size:10px;margin-top:2px}.lesson.active{background:#fff1b8;border-color:#eedb8d}.lesson.active .lesson-number{background:#fff9e6;color:#776038}.sidebar-note{margin-top:auto;padding-top:45px;display:flex;gap:11px;align-items:center;font-size:11px;line-height:1.8;color:#8b978a}.sidebar-note>span{font-size:25px;color:#beadc9}main{width:min(1190px,100%);padding:27px 42px 12px;margin:auto}.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.tag{font-size:10px;letter-spacing:2px;color:#88968a}.quiet{background:transparent;color:#75837b;font-size:11px;padding:8px}.quiet span{font-size:10px;margin-left:8px;color:#9a9e96}.intro{display:flex;justify-content:space-between;gap:20px;margin-bottom:29px}.intro .eyebrow{color:#99846a;letter-spacing:1px}h1{font-size:32px;letter-spacing:-1.4px;font-weight:800;line-height:1.25}h1>span{display:block;font-size:14px;font-weight:400;letter-spacing:.2px;color:#8e998f;margin-top:11px}.intro-copy{font-size:12px;color:#778478;margin-top:16px}.study-count{display:flex;align-items:center;gap:13px;align-self:center;padding:13px 0 13px 21px;border-left:1px solid #dfe5d9;font-size:10px;color:#74816f}.study-count strong{font-size:34px;color:#789079;font-weight:400}.study-count small{font-size:9px;white-space:nowrap}.toolbar{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:20px}.mode-tabs{display:flex;gap:5px;padding:5px;background:#eeeee7;border-radius:14px}.mode-tabs button{background:transparent;border-radius:10px;font-size:12px;padding:10px 18px}.mode-tabs button[aria-selected=true]{background:#fff;box-shadow:0 3px 6px #29403508;font-weight:700}.mode-tabs small{font-size:9px;margin-top:2px}.scope-toggle{display:flex;align-items:center;gap:7px;font-size:10px;color:#738074}.scope-toggle input{accent-color:#7c9382;width:15px;height:15px}.scope-toggle small{font-size:9px}.workspace{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(265px,1fr);gap:20px}.card{border:1px solid #e4e7de;border-radius:23px;background:#fff;box-shadow:0 5px 15px #243d3903}.builder{padding:25px 25px 17px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.section-heading h2{font-size:15px}.section-heading small{font-size:10px}.picker{margin-top:25px}.picker-label{display:flex;align-items:center;gap:9px;margin-bottom:11px}.step{width:20px;height:20px;background:#f1f0e9;color:#8b9387;display:grid;place-items:center;border-radius:7px;font-size:10px}.picker h3{font-size:12px;font-weight:700;display:flex;gap:9px;align-items:center}.picker h3 small{font-size:10px}.picker-label>span:last-child:not(.step){margin-left:auto;color:#a1aaa0;font-size:10px}.keys{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}.key{background:#f6f7f3;border:1px solid #e9ece3;border-radius:11px;min-height:45px;font-family:inherit;font-size:23px;transition:background .15s,transform .1s}.key:hover{background:#f2ede1;transform:translateY(-1px)}.key.selected{background:#f9edba;border-color:#ddc976;color:#5e5032;box-shadow:0 2px 0 #e4d49b}.vowels .key.selected{background:#e9def4;border-color:#c4aadf;color:#71568a;box-shadow:0 2px 0 #d8c6e9}.finals .key.selected{background:#e0eddf;border-color:#a0b69e;color:#4e7154;box-shadow:0 2px 0 #c1d4bf}.key.none{font-size:11px}.builder-foot{border-top:1px dashed #e4e8df;margin-top:24px;padding-top:16px;color:#929c90;font-size:10px;display:flex;justify-content:space-between;gap:10px}.builder-foot small{font-size:9px}.result{padding:24px;display:flex;flex-direction:column;align-items:center;background:#fffdf5;position:relative;overflow:hidden}.result-top{display:flex;width:100%;align-items:center;justify-content:space-between;color:#8d8e7d;font-size:11px}.bookmark{font-size:25px;color:#c39fa6;background:transparent;padding:0 5px}.bookmark[aria-pressed=true]{color:#d77a83}#syllable{font-family:Hangul,'Malgun Gothic',sans-serif;font-size:132px;line-height:1.35;font-weight:600;min-height:176px;margin-top:8px;color:#324b43;transition:opacity .1s}.pop{animation:pop .2s ease-out}@keyframes pop{from{transform:scale(.93);opacity:.5}to{transform:scale(1);opacity:1}}.formula{display:flex;gap:8px;align-items:center;min-height:37px}.formula span{padding:5px 12px;border-radius:9px;background:#f7ebbc;font-size:20px}.formula span.v{background:#eadff3;color:#725c86}.formula span.f{background:#deebdb;color:#557554}.formula b{color:#b2b8a7;font-size:14px;font-weight:400}.composition-tip{color:#8d947f;text-align:center;font-size:10px;line-height:1.8;min-height:42px;margin:13px 0 19px}.primary{background:#36574b;border:1px solid #36574b;color:white;border-radius:12px;font-size:13px;padding:13px 23px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px}.primary span{font-size:10px;font-weight:400;color:#c7d5ca}#play{width:100%;margin-top:auto}.play-options{display:flex;width:100%;gap:8px;margin-top:9px}.soft{background:#f2f2e9;border:1px solid #e6e7d9;border-radius:10px;padding:10px 14px;font-size:11px}.play-options button{flex:1}.soft small{display:inline;font-size:9px;margin-left:5px}.audio-state{font-size:9px;color:#989d8b;text-align:center;margin-top:13px;min-height:27px;line-height:1.6}.collection{margin-top:28px}.collection .section-heading{margin-bottom:12px}.collection-hint{color:#9ca498;font-size:10px}.saved-letters{display:flex;gap:8px;flex-wrap:wrap;min-height:52px;align-items:center}.saved-letters button{min-width:44px;height:44px;border:1px solid #e4e7de;border-radius:11px;background:white;font-size:21px}.empty{font-size:11px;color:#a2aa9b;padding:12px 0}.compare-panel{padding:27px;min-height:380px}.compare-choices{display:flex;gap:7px;flex-wrap:wrap;margin:25px 0}.compare-choices button{padding:9px 13px;border-radius:20px;background:#f1f3ed;font-size:12px}.compare-choices button.active{background:#e5d9f0;color:#6e5382}#compareTip{color:#7d897c;font-size:12px;line-height:1.9}.compare-cards{display:flex;gap:15px;margin:27px 0 12px}.compare-cards button{flex:1;background:#fff8df;border:1px solid #ece1b9;border-radius:20px;padding:25px 6px;font-size:53px}.compare-cards small{font-size:10px;margin-top:10px;color:#8f926f}.compare-cards button.sounding{background:#e2efdd;border-color:#88a97b}.quiz-bar{border-radius:15px;background:#eee8f5;padding:16px 22px;margin-bottom:18px;display:flex;gap:15px;align-items:center}.quiz-bar div{flex:1}.quiz-bar strong{font-size:12px}.quiz-bar small{font-size:10px;margin-top:4px}#quizProgress{font-size:12px;color:#8a759d}.quiz-feedback{display:flex;gap:10px;align-items:center;flex-wrap:wrap;background:#fff;border:1px solid #e4e7de;border-radius:14px;padding:16px 20px;margin-top:15px}.quiz-feedback p{flex:1;font-size:12px;line-height:1.7;min-width:180px}.quiz-feedback p.good{color:#487646}.quiz-feedback p.bad{color:#ac6452}footer{border-top:1px solid #e4e7de;margin-top:32px;padding:18px 0 6px;display:flex;gap:20px;align-items:center}footer>span{font-size:11px;font-weight:600;color:#8a9a85}footer p{flex:1;font-size:10px;color:#969e90}footer small{font-size:9px;margin-top:5px}dialog{border:none;border-radius:24px;max-width:510px;width:calc(100% - 30px);padding:28px;color:#344e42;box-shadow:0 15px 80px #203d3933}dialog::backdrop{background:#243d3966;backdrop-filter:blur(4px)}.dialog-top{display:flex;justify-content:space-between;align-items:start}.dialog-top h2{font-size:23px}dialog ol{padding-left:20px;line-height:1.8}dialog li{margin:15px 0}dialog p{font-size:12px;line-height:1.9;margin:16px 0}.muted{color:#879080}dialog .soft{width:100%}
@media(min-width:1450px){main{padding-top:38px}.intro{margin-bottom:35px}.builder,.result{padding:30px}.key{min-height:52px}.picker{margin-top:30px}}
@media(max-width:1120px){.app-shell{grid-template-columns:205px minmax(0,1fr)}.sidebar{padding:25px 13px}.brand img{width:172px}main{padding:24px}.mode-tabs button{padding:9px 12px}.workspace{gap:13px;grid-template-columns:minmax(0,1.4fr) minmax(235px,1fr)}.keys{gap:6px}.builder,.result{padding:18px}.key{min-height:42px;font-size:21px}.study-count{display:none}h1{font-size:28px}}
@media(max-width:850px){.app-shell{display:block}.sidebar{border-right:0;border-bottom:1px solid #e6e9df;padding:12px 20px}.brand img{width:153px;margin:0}.sidebar>.eyebrow,.sidebar>h2,.sidebar-note{display:none}.sidebar nav{display:flex;overflow:auto;margin-top:12px;padding-bottom:3px;gap:7px}.lesson{width:auto;flex-shrink:0;padding:7px 12px;gap:7px}.lesson small{display:none}.lesson-number{width:24px;height:24px}.lesson strong{font-size:11px}main{padding:22px}.topbar{margin-bottom:18px}.intro{margin-bottom:22px}.workspace{grid-template-columns:1.3fr 1fr}.builder{padding:20px}.result{padding:22px}.keys{grid-template-columns:repeat(6,minmax(0,1fr))}}
@media(max-width:680px){main{padding:18px 15px}.sidebar{padding:12px 15px}h1{font-size:27px}.intro-copy{font-size:11px}.topbar .tag{font-size:8px}.topbar .quiet{font-size:10px}.toolbar{flex-wrap:wrap;gap:11px}.mode-tabs{width:100%;justify-content:space-between}.mode-tabs button{flex:1;padding:9px 6px;font-size:11px}.scope-toggle{margin-left:auto}.workspace{display:flex;flex-direction:column}.result{order:-1;display:grid;grid-template-columns:1fr 1fr;column-gap:18px;padding:19px 20px}.result-top{grid-column:1/-1}#syllable{grid-column:1;grid-row:2/5;font-size:100px;min-height:130px;margin:0;display:grid;place-items:center}.formula{grid-column:2;justify-content:center;gap:5px}.formula span{font-size:16px;padding:3px 8px}.composition-tip{display:none}#play{grid-column:2;padding:11px 5px;font-size:12px}.play-options{grid-column:2;gap:5px}.play-options button{padding:7px 2px;font-size:10px}.play-options small{display:none}.audio-state{grid-column:1/-1;margin-top:12px;min-height:14px}.builder{padding:22px}.keys{grid-template-columns:repeat(7,minmax(0,1fr));gap:7px}.key{min-height:42px;font-size:21px}.section-heading h2{font-size:14px}.picker{margin-top:21px}.builder-foot{font-size:9px}.builder-foot small{display:none}.collection-hint{font-size:9px}.compare-panel{padding:22px 18px}.compare-cards{gap:8px}.compare-cards button{font-size:38px;padding:20px 5px}.quiz-bar{padding:15px;flex-wrap:wrap}.quiz-bar .primary{padding:10px 14px;font-size:11px}.quiz-bar div{min-width:180px}.quiz-feedback{padding:15px}footer{gap:12px;flex-wrap:wrap}footer>span{width:100%}footer p{font-size:9px}footer small{font-size:8px}#compareSequence{font-size:10px;padding:9px}.intro .eyebrow{font-size:9px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}


/* A single lesson menu, matching the workbook selector. */
.app-shell{display:block}.sidebar{border:0;background:transparent;max-width:1190px;margin:auto;padding:20px 42px 0}.brand{width:190px}.brand img{width:190px;margin:0}.lesson-selector{display:flex;align-items:center;gap:14px;padding:20px 24px;margin-bottom:22px;border:1px solid #ffe7a1;border-radius:23px;background:#fff;box-shadow:0 2px 3px #a7841810}.lesson-selector label{flex-shrink:0;padding:10px 14px;border-radius:13px;background:#fff2bf;color:#86501c;font-weight:700}.lesson-selector select{min-width:0;flex:1;max-width:850px;padding:12px 38px 12px 18px;border:1px solid #e8c76b;border-radius:18px;color:#744319;background:#fffcf0;font-weight:600;cursor:pointer}.lesson-selector select:focus-visible{outline:3px solid #af91cf;outline-offset:3px}
@media(max-width:680px){.sidebar{padding:16px 15px 0}.brand img{width:153px}.lesson-selector{padding:14px;gap:10px;flex-wrap:wrap;border-radius:18px}.lesson-selector label{font-size:12px;padding:8px 11px}.lesson-selector select{width:100%;flex-basis:100%;font-size:12px;padding:12px}}

/* English first, Korean below; larger brand. */
.brand,.brand img{width:380px;max-width:100%;height:auto}.topbar{justify-content:flex-end;margin-bottom:18px}.lesson-label{flex-shrink:0;padding:10px 14px;border-radius:13px;background:#fff2bf;color:#86501c;font-weight:700}.lesson-label small{color:#9a753c}.lesson-selector{align-items:stretch}#lessonMenu{position:relative;flex:1;min-width:0}#lessonCurrent{list-style:none;cursor:pointer;border:1px solid #e8c76b;background:#fffcf0;border-radius:16px;padding:12px 35px 12px 16px;font-weight:600;color:#744319;min-height:100%}#lessonCurrent::-webkit-details-marker{display:none}#lessonCurrent:after{content:'⌄';position:absolute;right:16px;top:13px}#lessonCurrent small{margin-top:3px;font-size:10px;letter-spacing:0;color:#998360}#lessonOptions{position:absolute;z-index:10;top:calc(100% + 6px);left:0;right:0;max-height:380px;overflow:auto;background:white;border:1px solid #e8d99e;border-radius:14px;padding:6px;box-shadow:0 10px 30px #243d3926}.lesson-option{display:block;width:100%;padding:11px 12px;text-align:left;background:white;border-radius:9px}.lesson-option[aria-pressed=true]{background:#fff2bf}.lesson-option:hover{background:#f5f3eb}.lesson-option small{font-size:10px;margin-top:4px}summary:focus-visible{outline:3px solid #af91cf;outline-offset:3px}.picker h3{display:block}.picker h3 small{margin-top:2px}.primary{flex-direction:column;gap:3px}.primary small{color:#d2e1d8;font-size:10px}.soft small{display:block;margin:3px 0 0;font-size:10px}.quiet small{font-size:9px}.intro-copy small{font-size:10px;margin-top:4px}.builder-foot{display:block}#lessonLabel small{letter-spacing:0;font-size:10px}.result-top{min-height:35px}.audio-state{white-space:pre-line}h1{font-size:32px;letter-spacing:-.7px}
@media(max-width:680px){.brand,.brand img{width:300px}.lesson-selector{flex-direction:column}.lesson-label{align-self:flex-start}#lessonCurrent{font-size:12px}#lessonOptions{max-height:330px}.play-options small{display:block}.builder-foot small{display:block}h1{font-size:28px}.mode-tabs small{font-size:10px}.topbar{margin-bottom:12px}.result{row-gap:5px}}

.final-vowel-note{font-size:12px;line-height:1.65;background:#f3f4f0;border-radius:10px;padding:12px 14px;margin:10px 0 14px;color:#39534b}.final-vowel-note strong{display:block;font-size:17px;letter-spacing:1px;margin:3px 0}.final-vowel-note small{display:block;font-size:11px;color:#61756d}

#syllable.awaiting-answer{color:#9ba9a1}

/* Keep help beside the logo; avoid a separate empty row beneath the brand. */
.app-shell{position:relative}.sidebar{position:relative;padding-right:135px}.brand{display:block}main{padding-top:12px}.topbar{position:absolute;top:28px;right:max(42px,calc((100% - 1106px)/2));margin:0}.intro{margin-bottom:22px}
@media(max-width:680px){.sidebar{padding-right:90px}.topbar{top:20px;right:15px}main{padding-top:8px}.intro{margin-bottom:18px}}

/* Readable interface text; keep jamo keys and practice syllables at their existing sizes. */
body{font-size:16px}small{font-size:13px;line-height:1.55}h1{font-size:36px}h1>span{font-size:17px}h2{font-size:20px}h3{font-size:17px}
.quiet{font-size:14px}.quiet small{font-size:12px}.intro-copy{font-size:15px;line-height:1.6}.intro-copy small{font-size:13px}
.lesson-label{font-size:16px}.lesson-label small{font-size:13px}#lessonCurrent{font-size:16px}#lessonCurrent small{font-size:13px}.lesson-option{font-size:15px}.lesson-option small{font-size:12px}
.toolbar{flex-wrap:wrap;gap:14px}.mode-tabs{flex:1}.mode-tabs button{flex:1;font-size:17px;line-height:1.4;padding:12px 18px}.mode-tabs small{font-size:13px;margin-top:5px}
.scope-toggle{font-size:14px}.scope-toggle small{font-size:12px}.picker-label>span:last-child{font-size:12px}.step{font-size:12px}.picker h3 small{font-size:13px}
.result-top,.result-top span{font-size:14px}.result-top small{font-size:12px}.primary{font-size:17px}.primary small{font-size:13px}.soft{font-size:15px}.soft small{font-size:12px}
.audio-state{font-size:13px;line-height:1.6}.builder-foot{font-size:14px}.builder-foot small{font-size:12px}
.final-vowel-note{font-size:14px}.final-vowel-note small{font-size:13px}#compareTip{font-size:15px}#compareTip small{font-size:13px}.compare-cards small{font-size:12px}
.quiz-bar strong{font-size:16px}.quiz-bar small{font-size:13px}#quizProgress{font-size:14px}.quiz-feedback p{font-size:15px;line-height:1.7}
footer>span{font-size:13px}footer p{font-size:12px}footer small{font-size:11px}dialog p{font-size:15px}dialog li{font-size:16px}dialog .dialog-top h2{font-size:25px}
@media(max-width:680px){h1{font-size:32px}.mode-tabs{width:100%;gap:3px}.mode-tabs button{font-size:16px;padding:12px 6px}.mode-tabs small{font-size:13px}.lesson-label{font-size:16px}#lessonCurrent{font-size:15px}.intro-copy{font-size:14px}}

@media(max-width:850px){.toolbar{flex-direction:column;align-items:stretch}.mode-tabs{flex:none;width:100%}.scope-toggle{align-self:flex-end}.mode-tabs button{min-height:76px}}