@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');
:root{color-scheme:light;--bg:#f6f8f4;--surface:#ffffff;--line:#dce6df;--muted:#546e63;--text:#19382e;--accent:#17634f;--reading:18px;font-family:'Be Vietnam Pro',system-ui,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-size:14px;line-height:1.65}button,input,select,textarea{font:inherit}button,.button{cursor:pointer;display:inline-flex;justify-content:center;align-items:center;gap:6px;background:#e8f1eb;color:var(--text);border:1px solid transparent;border-radius:8px;padding:9px 13px;text-decoration:none;transition:background .15s}button:hover,.button:hover{background:#dbece1}button:disabled{opacity:.45;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,a:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}input,select,textarea{background:#ffffff;border:1px solid var(--line);border-radius:8px;color:var(--text);padding:10px 12px;min-width:0}input::placeholder,textarea::placeholder{color:#627c6f}input[type=checkbox]{accent-color:var(--accent)}label{color:var(--muted)}.primary{background:#1b5e4b;color:#19382e;font-weight:700}.primary:hover{background:#164d3e}.outline{border-color:var(--line);background:transparent}.quiet,.text-button{color:var(--accent);background:transparent}.text-button{font-size:13px}.subtle{font-size:12px;color:var(--muted)}.eyebrow{font-size:10px;font-weight:600;letter-spacing:1.65px;color:#527363}h1,h2,h3,p{margin-top:0}h1{font-size:30px;line-height:1.4;font-weight:600;letter-spacing:-1.1px;margin:8px 0 9px}h2{font-size:20px;line-height:1.5;font-weight:600}h3{font-size:17px;font-weight:500}p{color:var(--muted)}header{height:84px;border-bottom:1px solid #dce6df;padding:0 max(4vw,24px);display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none;font-size:19px;font-weight:600}.brand-icon{display:grid;place-items:center;background:#1b5e4b;color:#19382e;border-radius:12px;height:43px;width:43px;font-weight:800;font-size:22px}.brand small{display:block;font-size:8px;letter-spacing:1.6px;color:var(--muted);font-weight:400;margin-top:1px}nav{display:flex;gap:12px}nav button{background:transparent;color:#355b4b}main{max-width:1570px;margin:auto;padding:30px max(4vw,24px) 0}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}.intro p{margin:0;font-size:13px}.local-pill{font-size:11px;border:1px solid var(--line);padding:7px 12px;border-radius:24px;color:var(--muted);white-space:nowrap}.local-pill i{display:inline-block;width:6px;height:6px;background:#3c9369;border-radius:50%;margin-right:6px}.url-bar{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:9px 10px 9px 18px;margin-bottom:24px}.youtube-icon{background:#cd5e68;color:#fff;border-radius:5px;display:inline-grid;place-items:center;height:21px;width:30px;font-size:10px}.url-bar input{flex:1;border:0;background:transparent;padding-left:0}.url-bar button{padding:10px 18px}.workspace{display:grid;grid-template-columns:minmax(0,.94fr) minmax(0,1.06fr);gap:26px;align-items:start}.watch-pane,.content-pane{min-width:0}.video-shell{position:relative;aspect-ratio:16/9;background:radial-gradient(ellipse at 50% 0%,#e3efe7,#ffffff 70%);border:1px solid var(--line);border-radius:14px;overflow:hidden}.video-shell iframe,#playerMount{position:absolute;width:100%;height:100%;border:0;inset:0}#videoEmpty{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:22px}#videoEmpty h2{font-size:17px;margin:14px 0 7px}#videoEmpty p{font-size:12px;max-width:330px;margin-bottom:6px}.play-circle{border:1px solid #bfd6c8;border-radius:50%;height:55px;width:55px;display:grid;place-items:center;color:#1b5e4b;padding-left:3px}.video-meta{margin:19px 0 15px}.video-meta h2{font-size:17px;margin:3px 0}.video-meta p{font-size:11px;margin:0}.transport{display:flex;align-items:center;gap:8px;border-top:1px solid var(--line);padding-top:16px}.transport>button:first-child,.transport>button:nth-child(3){font-size:22px;line-height:1;padding:9px 13px}.transport #clock{margin-left:auto;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.transport select{padding:7px;width:73px}.play-options{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin:10px 0 20px;font-size:11px}.play-options button{padding:6px 8px;font-size:11px;background:transparent;color:var(--muted);border:1px solid var(--line)}.play-options button[aria-pressed=true]{border-color:#92bfa4;color:#1b5e4b;background:#e3f1e8}.play-options label{margin-left:auto;font-size:10px}.current-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:17px 20px}.card-top{display:flex;align-items:center;justify-content:space-between}.card-top button{background:transparent;padding:0 5px;font-size:22px;color:var(--accent)}#currentText{color:var(--text);font-size:var(--reading);line-height:1.8;margin:10px 0 15px}.recent{display:flex;align-items:center;gap:15px;margin:18px 0}.recent label{font-size:11px;white-space:nowrap}.recent select{flex:1;font-size:12px;max-width:100%}.note-box{display:flex;gap:12px;font-size:11px;padding:18px 0;border-top:1px solid var(--line)}.note-box>span{font-size:22px;color:var(--accent)}.note-box strong{font-weight:500;color:#315a48}.note-box p{margin:0}.content-pane{border:1px solid var(--line);background:#ffffff;border-radius:14px;overflow:hidden}.tabbar{display:flex;border-bottom:1px solid var(--line);padding:0 13px;gap:6px;background:#ffffff}.tabbar button{position:relative;background:none;border-radius:0;font-size:12px;padding:18px 10px;color:var(--muted);white-space:nowrap}.tabbar button[aria-selected=true]{color:#1b5e4b}.tabbar button[aria-selected=true]:after{content:'';position:absolute;bottom:0;height:2px;left:10px;right:10px;background:#267655}.count{display:inline-block;border-radius:5px;background:#e4f1e8;padding:0 5px;font-size:10px;color:#276047}.panel{position:relative;padding:18px 18px 0}.panel[hidden],[hidden]{display:none!important}.panel-tools{display:flex;gap:9px;align-items:center}.search{display:flex;align-items:center;flex:1;min-width:0;background:#f6f8f4;border:1px solid var(--line);border-radius:8px;padding-left:9px}.search input{border:0;background:none;width:100%;font-size:11px;padding:9px}.panel-tools button{font-size:11px;white-space:nowrap;padding:9px 10px}.info-line{font-size:10px;color:#587568;padding:12px 1px}.scroll-list{height:550px;overflow:auto;scrollbar-width:thin;scrollbar-color:#afc9b9 transparent;overscroll-behavior:contain}.empty{height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:30px 15px}.empty-icon{font-size:37px;color:#3f7c60;background:#edf5ee;border-radius:13px;width:59px;height:59px;line-height:1.4;margin-bottom:20px}.empty h3{font-size:17px;margin-bottom:8px}.empty p{font-size:12px;max-width:310px;margin-bottom:22px}.empty .primary{font-size:12px}.cue{display:grid;grid-template-columns:46px 1fr 28px;gap:9px;padding:16px 9px;border-bottom:1px solid #e1e9e3;border-left:2px solid transparent;border-radius:6px}.cue.active{background:#e5f2e9;border-left-color:#2c8961}.cue .seek{background:none;padding:3px 0;align-self:start;font-size:10px;color:#376f55;font-variant-numeric:tabular-nums}.cue-text{font-size:var(--reading);line-height:1.75;margin:0;color:#19382e}.cue .save{padding:0;background:none;align-self:start;color:#527a65;font-size:19px}.cue .edit-time{font-size:9px;background:none;padding:0;color:#5a7566}.cue-time{display:flex;flex-direction:column;align-items:start}.return-btn{position:absolute;right:20px;top:100px;z-index:3;background:#1b5e4b;color:#19382e;font-size:11px;box-shadow:0 5px 25px #173d3226}.section-heading{padding:2px 2px 10px}.section-heading h2{font-size:20px;margin:5px 0}.section-heading p{font-size:11px;margin:0}.filter-grid{display:flex;flex-wrap:wrap;gap:6px;max-height:155px;overflow:auto;margin-bottom:13px}.filter-grid button{font-size:10px;padding:5px 8px;background:#f3f7f1;color:#496a58;border:1px solid #d8e5db}.filter-grid button.selected{color:#17513e;background:#e1f0e5;border-color:#8cb99a}.filter-grid button span{font-size:9px;opacity:.7}.grammar-toolbar{display:flex;justify-content:space-between;gap:10px;font-size:10px;color:#546e63;border-top:1px solid var(--line);padding:10px 0}.grammar-toolbar label{white-space:nowrap}.grammar-list{height:355px}.grammar-card{border:1px solid var(--line);border-radius:9px;background:#ffffff;padding:14px;margin-bottom:10px}.grammar-card p{font-size:var(--reading);color:var(--text);line-height:1.8;margin:9px 0}.grammar-card mark{background:#d7edcf;color:#234832;border-radius:3px;padding:1px 2px}.grammar-card .reason{font-size:11px;color:var(--muted);margin:8px 0 12px}.badge{font-size:9px;border:1px solid #c6decd;color:#356c4f;border-radius:4px;padding:3px 6px}.badge.review{color:#815511;border-color:#e4ce9e;background:#fff5df}.badge.manual{color:#1f6b4d;border-color:#bedaca}.grammar-card .row{justify-content:space-between}.grammar-card select{font-size:10px;max-width:72%;padding:6px}.grammar-card .time-btn{font-size:10px;padding:4px 6px;background:transparent;color:var(--accent)}.panel-foot{font-size:10px;color:#587364;border-top:1px solid var(--line);padding:12px 2px;line-height:1.65}.lookup{display:flex;gap:8px;margin:4px 0 18px}.lookup input{flex:1;font-size:12px}.lookup button{font-size:12px}.word-results{height:450px}.word-card{padding:17px;border:1px solid var(--line);background:#ffffff;border-radius:10px;margin-bottom:12px}.word-card h3{font-size:22px;margin:0}.word-card .meaning{font-size:12px;margin:4px 0 14px}.word-option{border-top:1px solid var(--line);padding:13px 0 0;margin-top:12px}.word-option strong{font-weight:500;font-size:17px;color:#205f44}.word-option p{font-size:12px;margin:4px 0}.word-option blockquote{font-size:13px;margin:9px 0;color:#294c3c;border-left:2px solid #91bda0;padding-left:11px}.add-word{width:100%;font-size:11px;margin-bottom:15px}footer{display:flex;justify-content:space-between;color:#5c7868;border-top:1px solid #dce6df;margin-top:30px;padding:20px 0;font-size:11px}footer span{font-size:10px}dialog{background:#ffffff;color:var(--text);border:1px solid #d3e2d7;border-radius:15px;padding:25px;max-width:580px;width:calc(100% - 32px);max-height:88vh;overflow:auto;box-shadow:0 20px 120px #173d3226}dialog::backdrop{background:#173d3259;backdrop-filter:blur(5px)}dialog p{font-size:12px}dialog .dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.dialog-head h2{margin:0}.dialog-head button{font-size:23px;padding:0 8px;background:none;color:var(--muted)}dialog label:not(.upload-box):not(.button){display:block;font-size:12px;margin:12px 0 5px}dialog label input:not([type=checkbox]){display:block;width:100%;margin-top:6px}dialog textarea{display:block;width:100%;font-size:12px;resize:vertical}dialog details{font-size:12px;color:#4f705e;margin:15px 0}dialog summary{cursor:pointer}dialog ol{padding-left:20px}dialog .upload-box{display:flex;align-items:center;flex-direction:column;gap:5px;border:1px dashed #a5c8b0;border-radius:10px;padding:22px;background:#f0f7ef;color:#26573e;cursor:pointer}.upload-box span{font-size:10px;color:var(--muted)}.upload-box input{max-width:100%;font-size:11px;margin-top:8px}.row{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.full{width:100%}.error{color:#b33132!important;font-size:12px}.wide{max-width:760px}.library-item{padding:17px 0;border-bottom:1px solid var(--line)}.library-item .quote{font-size:17px;color:var(--text);margin:0 0 8px}.library-item small{color:var(--muted)}.library-item textarea{margin-top:10px}#customWordList{font-size:12px}#customWordList>div{display:flex;justify-content:space-between;align-items:center;padding:9px 0}#customWordList button{font-size:10px;padding:4px 7px}hr{border:0;border-top:1px solid var(--line);margin:22px 0}#toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#e7f4e9;color:#214d36;border:1px solid #bad7c3;padding:12px 20px;border-radius:10px;max-width:90vw;font-size:12px;z-index:100;box-shadow:0 7px 40px #173d3226}#selectionBubble{position:fixed;z-index:8;background:#e6f2e5;border-radius:8px;box-shadow:0 6px 35px #173d3233;padding:3px;max-width:95vw}#selectionBubble button{background:transparent;color:#214d36;font-size:11px;padding:6px}.sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(min-width:1600px){.scroll-list{height:610px}.grammar-list{height:415px}.word-results{height:510px}}@media(max-width:1100px){main{padding:25px 24px 0}.workspace{gap:18px;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr)}.tabbar{padding:0 4px;gap:0}.tabbar button{padding:17px 8px;font-size:11px}.panel{padding:14px 12px 0}.local-pill{display:none}.play-options label{margin-left:0}.panel-tools{flex-wrap:wrap}.panel-tools .search{flex-basis:60%}.intro h1{font-size:28px}}@media(max-width:760px){header{padding:0 16px;height:72px}.brand{font-size:16px}.brand-icon{width:36px;height:36px;font-size:19px}.brand small{font-size:6px}nav{gap:3px}nav button{font-size:10px;padding:8px}main{padding:22px 16px 0}.intro h1{font-size:23px;letter-spacing:-.6px}.intro p{font-size:11px}.intro .eyebrow{font-size:9px}.url-bar{gap:8px;padding:7px 8px 7px 11px;margin-bottom:18px}.url-bar input{font-size:11px}.url-bar button{font-size:11px;padding:9px}.url-bar .youtube-icon{width:22px;height:17px}.workspace{grid-template-columns:1fr;gap:18px}.note-box{display:none}.current-card{padding:13px 16px}.recent{margin-bottom:0}.content-pane{border-radius:12px}.tabbar button{flex:1;font-size:11px;padding:17px 7px}.scroll-list{height:480px}.grammar-list{height:400px}.word-results{height:400px}.panel{padding:15px 12px 0}.panel-tools{flex-wrap:nowrap}.panel-tools .search{flex-basis:auto}.panel-tools button{font-size:10px}.cue{grid-template-columns:40px 1fr 25px;gap:6px;padding:14px 4px}.cue-text{font-size:var(--reading)}footer span{max-width:200px;text-align:right;font-size:9px}dialog{padding:20px}.grammar-toolbar{font-size:9px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* Compact study header: keep the lesson above the fold. */
header{height:58px}
.brand{font-size:17px;gap:9px}
.brand-icon{height:34px;width:34px;border-radius:9px;font-size:19px}
.brand small{display:none}
main{padding-top:14px}
.url-bar{padding:5px 7px 5px 13px;margin-bottom:14px;border-radius:9px;gap:10px}
.url-bar input{padding-top:7px;padding-bottom:7px;font-size:12px}
.url-bar button{padding:7px 14px;font-size:12px}
.video-meta{margin:12px 0 10px}
.video-meta h2{font-size:15px;margin:3px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.transport{padding-top:11px}
.play-options{margin-bottom:13px}
@media(min-width:761px){
 .scroll-list{height:max(300px,calc(100dvh - 275px))}
 .grammar-list{height:max(240px,calc(100dvh - 490px))}
 .word-results{height:max(260px,calc(100dvh - 400px))}
}
@media(max-width:760px){
 header{height:52px;padding:0 16px}
 .brand{font-size:15px}
 .brand-icon{height:30px;width:30px;font-size:17px}
 main{padding-top:10px}
 .url-bar{margin-bottom:12px;padding:5px 6px 5px 10px;gap:7px}
 .url-bar input{font-size:11px}
 .url-bar button{font-size:11px;padding:7px 10px}
}

/* Keep the sentence beside the video, before playback controls. */
.watch-pane>.current-card{margin-top:12px}
.watch-pane>.transport{margin-top:12px}

/* Center the video address in the application toolbar. */
header{display:grid;grid-template-columns:minmax(220px,1fr) minmax(220px,640px) minmax(220px,1fr);gap:20px;height:64px;padding:0 max(2vw,20px)}
header .brand{justify-self:start}
header nav{justify-self:end;white-space:nowrap}
header .url-bar{width:100%;min-width:0;margin:0;padding:3px 5px 3px 11px;border-radius:8px;gap:8px}
header .url-bar input{width:100%;min-width:0;font-size:11px;padding:6px 0}
header .url-bar button{flex-shrink:0;padding:6px 11px;font-size:11px}
header .youtube-icon{width:24px;height:18px;flex-shrink:0}
@media(min-width:901px){
 .scroll-list{height:max(300px,calc(100dvh - 225px))}
 .grammar-list{height:max(240px,calc(100dvh - 440px))}
 .word-results{height:max(260px,calc(100dvh - 350px))}
}
@media(max-width:1100px) and (min-width:901px){
 header{grid-template-columns:minmax(180px,1fr) minmax(220px,640px) minmax(180px,1fr);gap:12px;padding:0 20px}
 header nav{gap:3px}
 header nav button{font-size:11px;padding:7px 8px}
}
@media(max-width:900px){
 header{grid-template-columns:1fr auto;gap:8px 12px;height:auto;min-height:58px;padding:10px 16px}
 header .brand{grid-column:1;grid-row:1}
 header nav{grid-column:2;grid-row:1}
 header .url-bar{grid-column:1 / -1;grid-row:2;max-width:640px;justify-self:center}
 main{padding-top:12px}
}

/* Speak Lab palette: warm white surfaces and forest-green accents. */
header{background:#ffffff}
.primary,.brand-icon{background:#1b5e4b;color:#ffffff}
.primary:hover{background:#164d3e}
.return-btn{background:#1b5e4b;color:#ffffff;box-shadow:0 4px 16px #173d321a}
.current-card{background:#f0f7ef;border-color:#d3e5d7}
.content-pane{box-shadow:0 3px 18px #173d3205}
.tabbar{background:#ffffff}
.tabbar button[aria-selected=true]{font-weight:600}
.cue.active .seek,.cue.active .save{color:#1b6346}
.grammar-card mark{background:#d7edcf;color:#234832}
.badge.manual{background:#edf7ef}
#selectionBubble{border:1px solid #b6d2bd}
input[type=checkbox]{accent-color:#226f50}
::selection{background:#cce7d1;color:#173d32}

/* Give the live sentence visual priority. */
.current-card{background:#edf6ec;border-left:4px solid #277451}
.current-card .eyebrow{font-size:9px;letter-spacing:1px;color:#587364}
#currentText{font-size:clamp(24px,calc(var(--reading) + 8px),32px);font-weight:600;line-height:1.55;color:#123f2d;margin:10px 0 14px;overflow-wrap:anywhere}
.current-card>.subtle{font-size:11px}
@media(max-width:760px){
 #currentText{font-size:clamp(22px,calc(var(--reading) + 6px),28px)}
}

/* Desktop utility rail: the lesson starts at the top, beside the controls. */
@media(min-width:1101px){
 .workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
 header{position:fixed;left:12px;top:16px;width:156px;height:auto;min-height:0;max-height:calc(100dvh - 32px);overflow-y:auto;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:18px;padding:14px 10px;border:1px solid var(--line);border-radius:12px;z-index:5;background:#ffffff}
 header .brand{align-self:flex-start;font-size:14px;gap:7px}
 header .brand-icon{width:30px;height:30px;font-size:17px;border-radius:8px;flex-shrink:0}
 header .url-bar{display:flex;flex-direction:column;align-items:stretch;gap:8px;margin:0;padding:14px 0 0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent;width:100%;min-width:0}
 header .url-bar>label{position:static;clip:auto;overflow:visible;width:auto;height:auto;margin:0;font-size:10px;font-weight:500;color:var(--muted)}
 header .youtube-icon{display:none}
 header .url-bar input{width:100%;font-size:10px;padding:8px;border:1px solid var(--line);background:var(--bg);border-radius:6px}
 header .url-bar button{width:100%;font-size:11px;padding:8px}
 header nav{display:flex;flex-direction:column;align-items:stretch;gap:5px;border-top:1px solid var(--line);padding-top:12px;width:100%}
 header nav button{justify-content:flex-start;text-align:left;white-space:normal;font-size:11px;padding:8px}
 main{width:min(1424px,calc(100% - 204px));max-width:none;margin-left:max(188px,calc((100% - 1424px)/2));margin-right:16px;padding:16px 0 0}
 .scroll-list{height:max(300px,calc(100dvh - 170px))}
 .grammar-list{height:max(240px,calc(100dvh - 385px))}
 .word-results{height:max(260px,calc(100dvh - 295px))}
}

/* Bring the live sentence closer to the video. */
.watch-pane>.current-card{margin-top:7px;padding-top:8px}
.current-card .card-top{min-height:24px}
.current-card .card-top button{line-height:1;padding:1px 5px}
#currentText{margin-top:5px}
#saveCurrent[aria-pressed=true],.cue .save[aria-pressed=true]{color:#17634f}

/* One highlighted sentence, with a compact header close to the video. */
.watch-pane>.current-card{height:156px;min-height:156px;max-height:156px;margin-top:6px;padding:3px 18px 10px;display:flex;flex-direction:column;gap:3px;overflow:hidden;background:#edf6ec;border-color:#d3e5d7;border-left:4px solid #277451}
.current-card .card-top{flex:0 0 22px;min-height:22px;margin:0;align-items:center}
.current-card .eyebrow{font-size:8px;letter-spacing:.8px}
.current-card .card-top button{padding:0 4px;line-height:1}
.reading-stack{flex:1;min-height:0;overflow-anchor:none;display:grid;grid-template-rows:minmax(0,1fr)}
.reading-slot{min-height:0;overflow:hidden;padding:0;display:flex;flex-direction:column;background:transparent;border:0}
.reading-text,#currentText.reading-text{min-height:0;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;margin:0;font-size:clamp(24px,calc(var(--reading) + 12px),32px);line-height:1.5;flex:1;overflow-anchor:none;font-weight:700;color:#123f2d;overflow-wrap:anywhere}
.current-card>#readingHint{flex:0 0 auto;font-size:10px;line-height:1.4;margin:0;color:#587364}
@media(max-width:760px){.watch-pane>.current-card{padding-inline:13px}#currentText.reading-text{font-size:clamp(23px,calc(var(--reading) + 8px),28px)}}

/* Keep complete thoughts on separate lines without rewriting the speaker. */
#currentText .phrase-line{display:block;padding:1px 0}

/* A single compact toolbar brings the transcript closer to the tabs. */
#panel-transcript{padding-top:10px}
#panel-transcript .transcript-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:nowrap;gap:12px;margin:0 0 4px;padding:0 0 9px;border-bottom:1px solid var(--line)}
.transcript-toolbar .info-line{flex:1;min-width:0;padding:0;margin:0;line-height:1.55}
.transcript-toolbar #importBtn{flex:none;padding:6px 9px;font-size:10px;border-radius:7px}
@media(max-width:420px){#panel-transcript .transcript-toolbar{gap:8px}.transcript-toolbar .info-line{font-size:9px}.transcript-toolbar #importBtn{padding:6px 7px}}

/* Three fixed slots share one border; only their caption contents change. */
.transcript-viewport{height:max(460px,calc(100dvh - 170px));display:flex;flex-direction:column;gap:8px;min-height:0}
#transcriptFocus{flex:none;height:306px;display:grid;grid-template-rows:repeat(3,minmax(0,1fr));border:2px solid #6c9b80;border-radius:12px;overflow:hidden;background:#fff}
#transcriptFocus[hidden]{display:none}
#transcriptFocus .cue{min-height:0;margin:0;border:0;border-radius:0;grid-template-columns:44px minmax(0,1fr) 30px;column-gap:12px;padding:12px 14px;align-items:center;overflow:hidden}
#transcriptFocus .cue+.cue{border-top:1px solid #d5e4da}
#transcriptFocus .cue.active{background:linear-gradient(100deg,#dfefe4,#edf6ef);border-left:0;box-shadow:inset 4px 0 #287451;align-items:center}
#transcriptFocus .cue.active .cue-text{color:#143f2d;font-weight:600;align-self:center}
#transcriptFocus .cue.active .seek{background:#d0e6d7;color:#205e40;border-color:#b9d4c2;font-weight:600}
#transcriptFocus .cue.active .save{background:#ffffffa6;border-color:#c6dece;color:#246c49}
#transcriptFocus .cue:not(.active) .cue-text{color:#4b6759}
#transcriptFocus .cue-text{min-height:0;max-height:100%;overflow:auto;overscroll-behavior:contain;scrollbar-width:thin;font-size:clamp(17px,var(--reading),23px);line-height:1.5;align-self:center;text-align:left;min-width:0}
#transcriptFocus .focus-empty{display:flex;align-items:center;color:var(--muted)}
#transcriptFocus .focus-empty .cue-text{font-size:12px;font-weight:400;align-self:auto}
#transcriptList{flex:1;height:auto;min-height:0;overflow-anchor:none;scroll-behavior:auto}
#transcriptList .cue{border-left:2px solid transparent;border-bottom:1px solid #e1e9e3}
@media(max-width:760px){.transcript-viewport{height:max(480px,calc(100dvh - 190px))}#transcriptFocus{height:306px}#transcriptFocus .cue{grid-template-columns:40px minmax(0,1fr) 28px;column-gap:10px;padding:10px}}

/* Keep transcript actions in the toolbar, clear of the captions. */
.transcript-actions{display:flex;align-items:center;justify-content:flex-end;gap:7px;flex:none}
.transcript-actions #returnActive{position:static;inset:auto;margin:0;padding:6px 9px;font-size:10px;line-height:1.65;border-radius:7px;box-shadow:none;background:#e7f1e9;color:#245d43;border:1px solid #c8decf;white-space:nowrap}
.transcript-actions #returnActive:hover{background:#d9eadd}
#returnActive[hidden]{display:none}
@media(max-width:600px){#panel-transcript .transcript-toolbar{flex-wrap:wrap;gap:6px}.transcript-toolbar .info-line{flex-basis:100%}.transcript-actions{margin-left:auto}.transcript-actions #returnActive{font-size:10px}}

/* One timed caption, with consistent type and natural, balanced wrapping. */
#currentText.reading-text{font-size:clamp(24px,calc(var(--reading) + 9px),29px);font-weight:600;color:#123f2d;line-height:1.5;text-wrap:pretty;text-align:left;padding:3px 0;overflow-wrap:normal;word-break:normal}
#currentText .spoken-cue{background:transparent;color:#123f2d;font-weight:600;border-radius:0;padding:0;box-decoration-break:slice;-webkit-box-decoration-break:slice}
#currentText .phrase-line{display:block;padding:0}
@media(max-width:760px){#currentText.reading-text{font-size:clamp(22px,calc(var(--reading) + 7px),27px)}}

/* Consistent static emphasis across the entire caption. */
#currentText .spoken-cue,#currentText .word-token{font-weight:600}

/* Keep the caption still. */
#currentText .word-token{transition:none;animation:none}
@media(max-width:760px){.watch-pane>.current-card{height:176px;min-height:176px;max-height:176px}}

/* Identical time, text and save columns in all three fixed rows. */
#transcriptFocus .cue-time{width:100%;align-self:center;align-items:center;justify-content:center}
#transcriptFocus .cue .seek{width:100%;height:26px;padding:0;border:1px solid transparent;border-radius:6px;font-size:11px;line-height:1;font-variant-numeric:tabular-nums;white-space:nowrap;align-self:center}
#transcriptFocus .cue.active .seek{border-color:#b9d4c2}
#transcriptFocus .cue .save{width:100%;height:30px;padding:0;border:1px solid transparent;border-radius:8px;align-self:center;justify-self:center;line-height:1}
#transcriptFocus .cue.active .save{border-color:#c6dece}

/* Start tense filters directly below the tabs. */
#panel-grammar{padding-top:8px}
#panel-grammar>#grammarProgress{padding-top:3px;padding-bottom:9px}

/* A compact tense list gives the sentences most of the available screen. */
#panel-grammar:not([hidden]){display:flex;flex-direction:column;height:calc(100dvh - 100px);min-height:420px}
#panel-grammar>#grammarProgress,#panel-grammar>.filter-grid,#panel-grammar>.grammar-toolbar,#panel-grammar>.panel-foot{flex-shrink:0}
#grammarList{flex:1;height:auto;min-height:0;padding-right:5px}
#grammarList .grammar-card{display:grid;grid-template-columns:50px minmax(0,1fr);column-gap:12px;align-items:start;padding:13px 12px;margin-bottom:8px;border-radius:8px}
#grammarList .grammar-card .time-btn{width:50px;justify-content:flex-start;align-self:start;padding:3px 0;margin-top:3px;font-size:10px;line-height:1.5;white-space:nowrap;font-variant-numeric:tabular-nums}
#grammarList .grammar-card p{min-width:0;margin:0;font-size:var(--reading);line-height:1.65;overflow-wrap:anywhere}
#panel-grammar>.panel-foot{padding:8px 2px;font-size:9px}
@media(max-width:760px){#panel-grammar:not([hidden]){height:calc(100dvh - 100px);min-height:440px}#grammarList .grammar-card{grid-template-columns:43px minmax(0,1fr);column-gap:9px;padding:11px 9px}#grammarList .grammar-card .time-btn{width:43px}}

/* A passage appears once, with clause breaks and consistent reading columns. */
#grammarList .grammar-card{grid-template-columns:44px minmax(0,1fr);column-gap:13px;padding:14px 12px;margin-bottom:10px}
#grammarList .grammar-card .time-btn{width:44px;font-size:11px;margin-top:2px}
#grammarList .grammar-card p{line-height:1.6}
#grammarList .grammar-phrase{display:block;padding:2px 0;text-wrap:pretty}
#grammarList .grammar-card mark{background:#e0eedb;color:#234832;padding:0 2px;font-weight:500;box-decoration-break:clone;-webkit-box-decoration-break:clone}
@media(max-width:760px){#grammarList .grammar-card{grid-template-columns:40px minmax(0,1fr);column-gap:9px;padding:12px 9px}#grammarList .grammar-card .time-btn{width:40px}}

/* Translation is an explicit link, with no API call or automatic tab switch. */
#selectionBubble:not([hidden]){display:flex;align-items:center;gap:3px;border:1px solid #bcd4c4;padding:4px;background:#f4faf5}
#selectionTranslate{display:inline-flex;align-items:center;justify-content:center;min-height:32px;padding:5px 10px;border-radius:6px;color:#17563d;text-decoration:none;font-size:12px;font-weight:500;white-space:nowrap}
#selectionTranslate:hover{background:#dceee1}
#selectionSave{min-width:32px;min-height:32px;border-left:1px solid #d4e3d8;border-radius:0 6px 6px 0}

#selectionResearch{min-height:32px;border-left:1px solid #d4e3d8;border-radius:0;padding:5px 9px;font-size:12px;font-weight:500;white-space:nowrap}
#researchDialog{max-width:640px}
.research-term{padding:12px 14px;border:1px solid #d2e3d5;border-radius:8px;background:#edf6ec;color:#204c36;font-size:18px;font-weight:500;max-height:130px;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere}
.research-topics{display:flex;gap:7px;flex-wrap:wrap;margin:14px 0 18px}
.research-topics button{padding:7px 11px;font-size:12px;background:#f3f7f2;border:1px solid #d3e2d6}
.research-topics button[aria-pressed=true]{background:#dfeee3;border-color:#7eaf91;color:#174f37;font-weight:600}
#researchPrompt{font-size:13px;line-height:1.65;margin-bottom:14px}
.research-actions{gap:8px}
.research-primary{background:#1b5e4b;color:#fff;font-weight:500}
.research-primary:hover{background:#164d3e}
.research-help{margin:16px 0 8px;line-height:1.7}
.research-help a{color:#1b5e4b;text-underline-offset:3px}
@media(max-width:420px){#selectionTranslate,#selectionResearch{font-size:11px;padding-inline:7px}}

/* Saved videos stay compact beside the lesson history. */
.video-bookmarks{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0 0}
.video-bookmarks button{font-size:12px;padding:7px 10px}
#saveVideoBtn[aria-pressed=true]{background:#deeee3;border-color:#a3c9b0;color:#1b5e4b}
.video-bookmarks+.recent{margin-top:10px}
.saved-video{padding:15px 0;border-top:1px solid var(--line)}
.saved-video h3{font-size:15px;line-height:1.5;margin:0 0 5px;overflow-wrap:anywhere}
.saved-video p{margin:0 0 9px;font-size:12px}
.saved-video .video-address{font-size:11px;color:var(--muted);overflow-wrap:anywhere;margin-bottom:8px}
.saved-video .row{flex-wrap:wrap;gap:8px}
.saved-video button{font-size:12px;padding:7px 10px}
#savedVideosList .empty{padding:28px 8px}

/* One aligned control panel below the caption, with three compact rows. */
.lesson-controls{margin-top:10px;padding:10px 12px;border:1px solid #dce6df;border-radius:10px;background:#ffffff;display:flex;flex-direction:column;gap:10px;min-width:0}
.lesson-controls .transport{margin:0;padding:0;border:0;gap:6px;min-width:0}
.lesson-controls .transport>button{height:38px;padding:0 14px;font-size:14px;font-weight:500;white-space:nowrap}
.lesson-controls .transport>button:first-child,.lesson-controls .transport>button:nth-child(3){width:38px;flex:none;padding:0;font-size:25px}
.lesson-controls .transport #clock{font-size:13px;font-weight:500;color:#315b49;line-height:1;font-variant-numeric:tabular-nums;margin-left:auto;padding:0 5px;white-space:nowrap}
.lesson-controls .transport #speed{width:72px;height:36px;padding:4px 8px;font-size:13px;font-weight:500;background:#f7faf6;flex:none}
.lesson-actions{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 12px;min-width:0}
.lesson-controls .play-options{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:0;font-size:11px;min-width:0}
.lesson-controls .play-options button{height:36px;padding:0 11px;border-radius:7px;font-size:13px;font-weight:500;white-space:nowrap}
.lesson-controls .play-options label{display:inline-flex;align-items:center;gap:6px;margin:0;font-size:12px;font-weight:500;color:#365c4b;line-height:1.4;white-space:nowrap}
.lesson-controls .play-options input{margin:0;width:15px;height:15px}
.lesson-controls .video-bookmarks{margin:0;gap:6px;display:flex;align-items:center;flex-wrap:wrap}
.lesson-controls .video-bookmarks button{height:36px;padding:0 11px;font-size:13px;font-weight:500;border-radius:7px;white-space:nowrap}
.lesson-controls .recent{display:grid;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:12px;margin:0;padding-top:10px;border-top:1px solid #e5ece6;min-width:0}
.lesson-controls .recent label{font-size:12px;font-weight:500;color:#365c4b;line-height:1.4;margin:0}
.lesson-controls .recent select{width:100%;min-width:0;max-width:100%;height:36px;padding:5px 10px;font-size:13px;font-weight:500;background:#f7faf6;border-color:#e0e9e2;text-overflow:ellipsis}
@media(max-width:420px){
 .lesson-controls{padding:10px;gap:9px}
 .lesson-actions{gap:8px}
 .lesson-controls .play-options{justify-content:space-between;flex-basis:100%}
 .lesson-controls .video-bookmarks{flex-basis:100%}
 .lesson-controls .video-bookmarks button{flex:1}
 .lesson-controls .recent{grid-template-columns:minmax(0,1fr);gap:6px;padding-top:9px}
 .lesson-controls .transport>button{padding-inline:9px}
 .lesson-controls .transport #speed{width:66px}
}

/* Clearer control labels and tense filters, in the same forest-green palette. */
.lesson-controls .count{font-size:11px;font-weight:600;padding:0 6px}
.tabbar button{font-size:13px;font-weight:500}
.tabbar button[aria-selected=true]{font-weight:600}
#panel-grammar #grammarProgress{font-size:12px;line-height:1.6;color:#496957;padding-bottom:11px}
#tenseFilters{gap:7px;max-height:185px;margin-bottom:12px}
#tenseFilters button{min-height:34px;padding:6px 10px;font-size:12px;line-height:1.5;font-weight:500;color:#315b46;border-color:#cbded0;border-radius:8px}
#tenseFilters button span{font-size:11px;font-weight:500;opacity:1;color:#5b7764}
#tenseFilters button.selected{color:#164f35;background:#dceee0;border-color:#79a98b;font-weight:600}
#tenseFilters button.selected span{color:#2b6846;font-weight:600}
#panel-grammar .grammar-toolbar{font-size:12px;line-height:1.5;align-items:center;padding:11px 0;color:#496957}
#panel-grammar .grammar-toolbar label{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;color:#496957}
#panel-grammar .grammar-toolbar input{width:15px;height:15px;margin:0}
@media(max-width:420px){
 .tabbar button{padding-inline:5px;font-size:12px}
 #panel-grammar .grammar-toolbar{flex-wrap:wrap;gap:7px}
 .lesson-controls .transport>button{padding-inline:9px}
 .lesson-controls .transport>button:first-child,.lesson-controls .transport>button:nth-child(3){padding:0}
}

/* Let tense filters and reading passages start directly below the tabs. */
#panel-grammar{padding-top:12px}
#panel-grammar>#grammarProgress{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
#panel-grammar>#tenseFilters{flex-shrink:0;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line)}

/* Use the spare right margin for reading, while preserving the video column. */
@media(min-width:1101px){
 main{width:min(1544px,calc(100% - 204px))}
 .workspace{grid-template-columns:minmax(0,min(699px,calc(50vw - 115px))) minmax(0,1fr)}
 #panel-grammar>#tenseFilters{column-gap:6px;row-gap:7px}
 #tenseFilters button{padding-inline:7px;white-space:nowrap}
}

/* Improve the desktop menu's legibility within its compact rail. */
@media(min-width:1101px){
 header .brand{font-size:16px;font-weight:700;line-height:1.4}
 header .brand-icon{width:32px;height:32px;font-size:18px}
 header .url-bar>label{font-size:12px;font-weight:600;line-height:1.5;color:#365c4b}
 header .url-bar input{font-size:12px;line-height:1.5;padding:9px 8px}
 header .url-bar button{min-height:39px;padding:8px;font-size:13px;font-weight:600}
 header nav{gap:7px}
 header nav button{min-height:38px;padding:8px 6px;font-size:13px;font-weight:500;line-height:1.5;color:#28523f}
 header nav .count{font-size:11px;font-weight:600}
}

/* A wider, calm saved-sentence library with no note fields. */
#libraryDialog{width:min(1040px,calc(100vw - 48px));max-width:1040px;max-height:88dvh;padding:24px 28px}
#libraryDialog .dialog-head{margin-bottom:8px}
#libraryDialog .library-help{font-size:12px;color:#587364;margin:0 0 18px}
#libraryList{display:flex;flex-direction:column;gap:12px}
#libraryList .library-item{padding:18px 20px;background:#f8fbf7;border:1px solid #dce8df;border-radius:10px}
#libraryList .quote{font-size:clamp(19px,calc(var(--reading) + 2px),25px);font-weight:500;line-height:1.65;color:#193f2d;margin:0 0 10px;overflow-wrap:anywhere;text-wrap:pretty}
.library-meta{display:flex;align-items:baseline;gap:12px;margin-bottom:14px;color:#5b7665;font-size:12px}
.library-video-title{flex:1;min-width:0;overflow-wrap:anywhere}
.library-time{flex:none;white-space:nowrap;font-weight:600;font-variant-numeric:tabular-nums;color:#35654a;background:#e8f2e9;padding:2px 7px;border-radius:5px}
.library-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.library-actions button{min-height:35px;padding:6px 11px;font-size:12px;font-weight:500}
.library-actions .text-button{margin-left:auto;font-weight:400;color:#5c7264}
@media(max-width:600px){#libraryDialog{width:calc(100vw - 24px);padding:18px 14px}#libraryList .library-item{padding:14px}#libraryList .quote{font-size:19px}.library-meta{font-size:11px;gap:8px}.library-actions{gap:6px}.library-actions button{font-size:11px;padding-inline:8px}}

.site-home-link{display:inline-flex;align-items:center;padding:8px;font-size:12px;color:#28523f;text-decoration:none;border-radius:7px}.site-home-link:hover{background:#e8f1eb}.site-home-link:focus-visible{outline:2px solid #17634f;outline-offset:2px}

/* Keep the website link directly below the shared TuanBong brand. */
header .brand-block{display:flex;flex-direction:column;align-items:flex-start;gap:4px;min-width:0}
header .brand-logo{display:block;width:44px;height:44px;object-fit:contain;flex:0 0 44px}
header .brand-block>.site-home-link{padding:4px 0;min-height:26px;line-height:1.5;font-size:12px;white-space:nowrap}
@media(max-width:1100px){header{height:auto;min-height:88px;padding-block:10px}header .brand-block{justify-self:start}}
@media(max-width:900px){header .brand-block{grid-column:1;grid-row:1}header nav{align-self:start}}
@media(max-width:760px){header .brand-logo{width:40px;height:40px;flex-basis:40px}header .brand-block>.site-home-link{font-size:11px;min-height:25px}}

/* Choose on YouTube first; expand manual entry only when needed. */
header .video-picker{width:100%;min-width:0}
header .youtube-launch{display:flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:9px 10px;border-radius:8px;background:#1b5e4b;color:#fff;text-decoration:none;font-size:12px;font-weight:600;line-height:1.45;text-align:left}
header .youtube-launch:hover{background:#164d3e}
header .youtube-launch:focus-visible,header .manual-video>summary:focus-visible{outline:2px solid #17634f;outline-offset:3px}
header .youtube-launch>span:first-child{font-size:15px;flex:none}
header .manual-video{margin-top:9px;min-width:0}
header .manual-video>summary{display:flex;align-items:center;justify-content:space-between;gap:5px;list-style:none;cursor:pointer;padding:5px 0;font-size:11px;font-weight:400;line-height:1.5;color:#546e63}
header .manual-video>summary::-webkit-details-marker{display:none}
header .manual-video>summary::after{content:'⌄';flex:none;font-size:13px}
header .manual-video[open]>summary::after{content:'⌃'}
header .manual-video .url-bar{display:flex;flex-direction:column;align-items:stretch;gap:8px;margin:0;padding:9px 0 0;border:0;border-radius:0;background:transparent;width:100%;min-width:0}
header .manual-video .url-bar input{width:100%;min-width:0;border:1px solid var(--line);border-radius:6px;background:var(--bg);padding:8px;font-size:12px;line-height:1.5}
header .manual-video .url-bar button{width:100%;min-height:36px;padding:7px 8px;font-size:12px}
header .manual-video .youtube-icon{display:none}
@media(min-width:1101px){header .video-picker{padding-top:14px;border-top:1px solid var(--line)}}
@media(max-width:1100px) and (min-width:901px){header .video-picker{max-width:260px;justify-self:center}}
@media(max-width:900px){header .video-picker{grid-column:1 / -1;grid-row:2;max-width:640px;justify-self:center}header .youtube-launch{min-height:40px;gap:8px;text-align:center}header .manual-video .url-bar{max-width:360px}header .manual-video>summary{justify-content:center;gap:8px}}

/* One lesson file works across browsers without transferring the full library. */
header .lesson-transfer{display:grid;gap:7px;margin-top:14px;padding-top:12px;border-top:1px solid var(--line)}
header .lesson-transfer button{width:100%;min-height:36px;font-size:12px;font-weight:500;padding:7px 9px}
header .lesson-transfer p{font-size:10px;line-height:1.6;color:var(--muted);margin:0}
.lesson-replace{padding:10px 12px;border-radius:8px;background:#edf4e9;font-size:13px}
.lesson-replace:empty{display:none}
@media(max-width:1100px){header .lesson-transfer{grid-template-columns:1fr 1fr;gap:8px}header .lesson-transfer p{grid-column:1/-1}}

/* Separate study perspectives preserve the existing tense overview. */
.perspective-axes{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;padding:0 0 10px;border-bottom:1px solid var(--line)}
.perspective-axes button{font-size:12px;line-height:1.5;min-height:40px;padding:8px 5px;background:#f4f7f1;border:1px solid var(--line);border-radius:8px}
.perspective-axes button[aria-pressed=true]{background:#1b5e4b;color:#fff;border-color:#1b5e4b;font-weight:600}
#panel-perspectives:not([hidden]){display:flex;flex-direction:column;height:calc(100dvh - 100px);min-height:440px;padding-top:12px}
#panel-perspectives>.perspective-axes,#panel-perspectives>.perspective-hint,#panel-perspectives>.filter-grid,#panel-perspectives>.panel-foot{flex-shrink:0}
.perspective-hint{font-size:12px;line-height:1.6;color:var(--muted);margin:10px 0 7px}
#perspectiveList{flex:1;min-height:0;height:auto;padding-right:5px}
.perspective-card{display:grid;grid-template-columns:44px minmax(0,1fr);gap:13px;border:1px solid var(--line);border-radius:8px;padding:14px 12px;margin:0 0 10px;background:white}
.perspective-card .time-btn{width:44px;justify-content:flex-start;align-self:start;font-size:11px;line-height:1.5;padding:3px 0;margin-top:2px;white-space:nowrap;font-variant-numeric:tabular-nums}
.perspective-card>div{min-width:0}
.perspective-card p{font-size:var(--reading);line-height:1.65;color:var(--text);margin:0;overflow-wrap:anywhere}
.perspective-card .grammar-phrase{display:block;padding:2px 0}
.perspective-card mark{background:#e0eedb;color:#234832;padding:0 2px;font-weight:500;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.perspective-labels{display:flex;flex-wrap:wrap;gap:5px;margin-top:9px}
.perspective-labels span{font-size:10px;line-height:1.5;padding:3px 7px;background:#f1f6ef;color:#496b59;border-radius:5px}
#panel-perspectives>.panel-foot{font-size:10px;padding:8px 2px;line-height:1.6}
.perspective-error{font-size:12px;line-height:1.6;padding:12px;border:1px solid var(--line);border-radius:8px;margin-bottom:10px}
@media(max-width:760px){.content-pane>.tabbar{overflow-x:auto;justify-content:flex-start}.content-pane>.tabbar button{flex:0 0 auto;white-space:nowrap;padding:16px 10px}.perspective-axes{grid-template-columns:repeat(2,minmax(0,1fr))}.perspective-card{grid-template-columns:40px minmax(0,1fr);gap:9px;padding:12px 9px}.perspective-card .time-btn{width:40px}}

#perspectiveFilters{gap:7px;max-height:160px;overflow-y:auto;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--line)}
#perspectiveFilters button{min-height:32px;padding:6px 9px;font-size:12px;line-height:1.5;font-weight:500;color:#315b46;border-color:#cbded0;border-radius:8px}
#perspectiveFilters button span{font-size:11px;color:#5b7764;opacity:1}
#perspectiveFilters button.selected{color:#164f35;background:#dceee0;border-color:#79a98b;font-weight:600}

.filter-kind-label{flex-basis:100%;font-size:11px;line-height:1.5;color:#587461;margin:3px 0 0}
#panel-grammar>.category-hint{flex-shrink:0;margin:0 0 10px;padding:9px 11px;border-radius:8px;background:#f0f5ed;color:#486752;font-size:12px;line-height:1.65}
.perspective-labels .context-label{background:#f3f4ef;color:#626d60}

/* One row opens each study view directly; no nested perspective selector. */
.content-pane>.tabbar{display:flex;flex-wrap:nowrap;gap:0;padding:0 8px;overflow-x:auto;scrollbar-width:thin}
.content-pane>.tabbar button{flex:0 0 auto;font-size:12px;line-height:1.5;padding:16px 9px;white-space:nowrap}
#panel-perspectives:not([hidden]){padding-top:8px}
#panel-perspectives>.perspective-hint{margin-top:0}
@media(max-width:760px){.content-pane>.tabbar button{padding:14px 9px}}

.coverage-check{margin:4px 0 10px;border:1px solid #d6e3da;border-radius:10px;padding:7px 11px;font-size:12px;line-height:1.6;color:#456354;background:#f6faf6}.coverage-check summary{cursor:pointer;font-weight:600}.coverage-check p{margin:6px 0}.coverage-counts{display:flex;gap:5px 14px;flex-wrap:wrap}.coverage-counts span{white-space:nowrap}.coverage-check strong{font-variant-numeric:tabular-nums}

.grammar-counts{margin:2px 0 9px;font-size:12px;line-height:1.5;color:#526b5f}.verb-details{display:flex;flex-wrap:wrap;gap:5px 8px;margin:8px 0 0}.verb-detail{display:inline-block;max-width:100%;overflow-wrap:anywhere;background:#f0f6f0;border:1px solid #dbe6dc;border-radius:6px;padding:3px 7px;font-size:12px;line-height:1.5;color:#456354}.verb-detail strong{font-weight:600;color:#245643}.verb-review{color:#78602f}.verb-detail.needs-review{border-style:dashed}

/* Keep phrase labels in the sentence column, outside the narrow timestamp track. */
#grammarList .grammar-card>.verb-details{grid-column:2 / -1;min-width:0;max-width:100%;align-self:start}
#grammarList .verb-details>.verb-detail{flex:0 1 auto;min-width:0;white-space:normal;word-break:normal}
/* Supplementary forms share the reading column; never collapse into the timestamp gutter. */
#grammarList .grammar-card>.verb-supplement{grid-column:2 / -1;min-width:0;width:100%;margin-top:8px;color:#456354;font-size:12px;line-height:1.6}
#grammarList .verb-supplement>summary{cursor:pointer;font-weight:500;overflow-wrap:anywhere}
#grammarList .grammar-card .verb-supplement>.category-hint{font-size:12px;line-height:1.6;margin:6px 0 0}
.pattern-details{margin-top:10px;border-top:1px solid #e0e9e0;padding-top:8px;font-size:12px;color:#456354;min-width:0}
.pattern-details>summary{cursor:pointer;font-weight:500;line-height:1.6}
.pattern-detail{margin:10px 0 0;padding:9px 11px;border:1px solid #dce7dc;border-radius:8px;background:#f9fbf7;overflow-wrap:anywhere}
.perspective-card .pattern-detail>strong{display:block;font-size:13px;color:#245643}
.perspective-card .pattern-detail .pattern-frame{font-size:12px;line-height:1.6;margin:4px 0;color:#365f49}
.perspective-card .pattern-detail .pattern-note{font-size:12px;line-height:1.6;margin:6px 0 0;color:#617363}
.pattern-evidence{display:flex;gap:5px;flex-wrap:wrap;margin-top:6px}
.pattern-evidence span{font-size:13px;line-height:1.5;padding:2px 6px;background:#e6f0df;border-radius:5px;color:#214b33;max-width:100%}
.sentence-form-details{margin-top:10px;border-top:1px solid #e0e9e0;padding-top:8px;font-size:12px;line-height:1.6;color:#456354;min-width:0}
.sentence-form-details>summary{cursor:pointer;font-weight:500}
.perspective-card .sentence-form-details>.pattern-note{font-size:12px;line-height:1.6;margin:8px 0;color:#617363}

/* A–B independent looping: chọn đoạn bất kỳ, không theo mốc phụ đề. */
.lesson-controls .play-options .ab-loop-controls{
 display:inline-flex;align-items:center;flex-wrap:wrap;gap:5px;
 padding:3px;background:#edf5ee;border:1px solid #d6e7d9;border-radius:9px
}
.lesson-controls .play-options .ab-loop-controls button{
 height:31px;padding:0 9px;font-size:12px;border-radius:6px;
 background:#fff;border:1px solid #c6dbc9;color:#21523e;white-space:nowrap
}
.lesson-controls .play-options .ab-loop-controls #abToggle[aria-pressed="true"]{
 background:#174b3e;color:#fff;border-color:#174b3e
}
.lesson-controls .play-options .ab-loop-controls button:disabled{
 opacity:.48;cursor:not-allowed
}
.ab-loop-status{flex-basis:100%;font-size:11px;color:#527260;line-height:1.45}
@media(max-width:420px){
 .lesson-controls .play-options .ab-loop-controls{width:100%;justify-content:space-between}
 .lesson-controls .play-options .ab-loop-controls button{flex:1;padding:0 5px}
}

/* Layout v2: hai khu vực điều khiển thật sự tận dụng chiều ngang. */
.lesson-controls{width:100%;max-width:none;box-sizing:border-box;gap:10px;padding:12px}
.lesson-controls .controls-main-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:10px;min-width:0}
.lesson-controls .control-group{min-width:0;padding:11px 12px;border:1px solid #dbe7dd;border-radius:10px;background:#f8fbf8}
.lesson-controls .control-ab{background:#f0f6f1}
.lesson-controls .control-group-title{margin:0 0 10px;color:#4b6658;font-size:10px;font-weight:750;letter-spacing:.075em;line-height:1.4}
.lesson-controls .control-playback .transport{display:flex;gap:6px;align-items:center;flex-wrap:nowrap}
.lesson-controls .control-playback .transport>button{height:35px;padding:0 10px;white-space:nowrap}
.lesson-controls .control-playback .transport>button:first-child,.lesson-controls .control-playback .transport>button:nth-child(3){width:34px;padding:0;flex:none}
.lesson-controls .playback-tools{display:flex;flex-wrap:wrap;align-items:center;gap:7px;margin-top:9px}
.lesson-controls .playback-tools>[data-mode]{height:35px;padding:0 10px;border-radius:7px;font-size:12px;white-space:nowrap}
.lesson-controls .playback-tools>[data-mode][aria-pressed="true"]{color:white;background:#174b3e;border-color:#174b3e}
.lesson-controls .playback-tools #clock{margin-left:auto;font-size:13px;font-variant-numeric:tabular-nums;font-weight:650;color:#174b3e}
.lesson-controls .playback-tools label{font-size:11px;color:#567265;white-space:nowrap}
.lesson-controls .playback-tools #speed{width:70px;height:35px;min-width:0;padding:4px 7px;font-size:12px;background:#fff}
.lesson-controls .follow-toggle{display:flex;align-items:center;gap:7px;margin-top:12px;font-size:12px;color:#395c4a;font-weight:600}
.lesson-controls .follow-toggle input{margin:0;accent-color:#174b3e}
.lesson-controls .control-ab .ab-loop-controls{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px;align-items:stretch;padding:0;border:0;background:transparent;border-radius:0}
.lesson-controls .control-ab .ab-loop-controls button{width:100%;min-width:0;height:35px;padding:0 8px;font-size:12px;border:1px solid #b7cfbc;border-radius:7px;background:#fff;color:#245640;font-weight:650;white-space:nowrap}
.lesson-controls .control-ab #abStart.is-set{background:#fff1cd;border-color:#d6b361;color:#745300}
.lesson-controls .control-ab #abEnd.is-set{background:#d5f1df;border-color:#8dc5a2;color:#195c34}
.lesson-controls .control-ab #abToggle[aria-pressed="true"]{background:#174b3e;border-color:#174b3e;color:#fff;opacity:1}
.lesson-controls .control-ab #abToggle:disabled,.lesson-controls .control-ab #abReset:disabled{opacity:.48;cursor:not-allowed}
.lesson-controls .control-ab #abReset{border-color:#d6ded7;background:#fff;color:#6b786f}
.lesson-controls .control-ab #abReset:not(:disabled):hover{background:#faeee9;color:#984c36}
.lesson-controls .control-ab .ab-loop-status{display:block;margin:9px 0 0;font-size:11px;line-height:1.5;color:#527260}
.lesson-controls .control-ab.is-looping{border-color:#87b49b;background:#e8f3eb;box-shadow:inset 0 0 0 1px #b0d1ba}
.lesson-controls .controls-bottom{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;padding-top:10px;border-top:1px solid #e2ebe4}
.lesson-controls .controls-bottom .video-bookmarks{display:flex;gap:7px;flex-wrap:wrap;align-items:center;margin:0}
.lesson-controls .controls-bottom .video-bookmarks button{height:35px;padding:0 10px;font-size:12px;white-space:nowrap}
.lesson-controls .controls-bottom .recent{display:grid;grid-template-columns:auto minmax(0,1fr);gap:9px;align-items:center;padding:0;border:0;min-width:0}
.lesson-controls .controls-bottom .recent label{white-space:nowrap;font-size:11px}
.lesson-controls .controls-bottom .recent select{width:100%;min-width:0;height:35px;font-size:12px}
@media(max-width:720px){
 .lesson-controls .controls-main-grid{grid-template-columns:minmax(0,1fr)}
 .lesson-controls .controls-bottom{grid-template-columns:minmax(0,1fr);gap:9px}
 .lesson-controls .controls-bottom .recent{padding-top:8px;border-top:1px solid #e2ebe4}
}
@media(min-width:721px) and (max-width:1090px){
 .lesson-controls .controls-main-grid{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:420px){
 .lesson-controls .control-group{padding:10px}
 .lesson-controls .control-ab .ab-loop-controls{width:100%;grid-template-columns:repeat(2,minmax(0,1fr))}
 .lesson-controls .control-ab .ab-loop-controls button{flex:initial}
 .lesson-controls .controls-bottom .video-bookmarks button{flex:1}
}

/* Cân hai cột của workspace và phản hồi ngay sau từng thao tác A/B. */
@media(min-width:761px){
 .workspace{align-items:stretch}
 .workspace>.watch-pane{display:flex;flex-direction:column;min-height:0}
 .workspace>.watch-pane>.lesson-controls{flex:1;display:flex;flex-direction:column}
 .workspace>.watch-pane>.lesson-controls>.controls-main-grid{flex:1;align-content:start}
 .workspace>.watch-pane>.lesson-controls>.controls-bottom{margin-top:auto}
 .workspace>.content-pane{height:100%;min-height:100%}
}
.lesson-controls .control-ab #abStart.is-set,
.lesson-controls .control-ab #abStart[aria-pressed="true"]{
 background:#f6dc85!important;border:2px solid #b58a20!important;color:#4d3900!important;
 box-shadow:0 0 0 2px #fff5d5 inset;font-weight:800
}
.lesson-controls .control-ab #abEnd.is-set,
.lesson-controls .control-ab #abEnd[aria-pressed="true"]{
 background:#a9e3bf!important;border:2px solid #33845a!important;color:#14482c!important;
 box-shadow:0 0 0 2px #eafcef inset;font-weight:800
}
.lesson-controls .control-ab #abToggle[aria-pressed="true"]{
 background:#16553e!important;border:2px solid #0b3c2b!important;color:white!important;
 box-shadow:0 0 0 2px #398667 inset;font-weight:800
}
.lesson-controls .control-ab #abReset.just-reset{
 background:#ffe0d8!important;color:#9b3524!important;border-color:#d78373!important;opacity:1!important
}
.lesson-controls .control-ab #abStart.is-set::before,
.lesson-controls .control-ab #abEnd.is-set::before{content:"✓";font-size:12px}

/* Bản chỉnh 30/10: ưu tiên khối phát, giữ A–B gọn và đáy hai cột ngang nhau. */
.lesson-controls .controls-main-grid{
 grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
 gap:9px;
}
.lesson-controls .control-group{padding:10px 12px}
.lesson-controls .control-ab .ab-loop-controls button{height:34px;font-size:11px;padding:0 5px}
.lesson-controls .control-playback .transport{gap:8px}
.lesson-controls .control-playback .transport>button{height:35px}
.lesson-controls .control-playback .playback-tools{gap:8px;margin-top:10px}
.lesson-controls .playback-tools label{margin-left:auto}
.lesson-controls .follow-toggle{margin-top:10px}
@media(min-width:761px){
 .workspace{align-items:start}
 .workspace>.watch-pane{display:block}
 .workspace>.watch-pane>.lesson-controls{display:flex;flex:none}
 .workspace>.watch-pane>.lesson-controls>.controls-main-grid{flex:none}
 .workspace>.watch-pane>.lesson-controls>.controls-bottom{margin-top:0}
 .workspace>.content-pane{
  height:var(--left-pane-height,auto);
  min-height:0;
  max-height:var(--left-pane-height,none);
  display:flex;
  flex-direction:column;
  overflow:hidden;
 }
 .workspace>.content-pane>.tabbar{flex:none;min-height:0}
 .workspace>.content-pane>.panel:not([hidden]){
  flex:1;min-height:0;overflow-y:auto;
  display:flex;flex-direction:column;
 }
 .workspace>.content-pane #panel-transcript .transcript-viewport{
  flex:1;min-height:0;
  display:flex;flex-direction:column;
  overflow:hidden;
 }
 .workspace>.content-pane #panel-transcript #transcriptList{
  flex:1;min-height:0;height:auto!important;
  overflow-y:auto;
 }
}
@media(min-width:761px) and (max-width:1090px){
 .lesson-controls .controls-main-grid{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}
 .lesson-controls .control-group{padding:9px}
}
@media(max-width:760px){
 .lesson-controls .controls-main-grid{grid-template-columns:minmax(0,1fr)}
 .workspace>.content-pane{height:auto;max-height:none}
}



/* Compact playback: navigation/loop, then follow/speed. */
.lesson-controls .control-playback{display:flex;flex-direction:column;gap:10px}
.lesson-controls .control-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;min-height:16px}
.lesson-controls .control-heading .control-group-title{margin:0}
.lesson-controls .control-heading #clock{font-size:11px;line-height:1;font-weight:650;font-variant-numeric:tabular-nums;color:#426653}
.lesson-controls .control-playback .transport{display:grid;grid-template-columns:34px minmax(0,1fr) 34px auto;gap:6px}
.lesson-controls .control-playback .transport>button{padding:0 9px;font-size:12px;height:35px}
.lesson-controls .control-playback .transport>[data-mode]{margin-left:4px;border:1px solid #b7cfbc;background:#fff;border-radius:7px}
.lesson-controls .control-playback .transport>[data-mode][aria-pressed="true"]{background:#174b3e;border-color:#174b3e;color:#fff}
.lesson-controls .control-playback .playback-tools{display:grid;grid-template-columns:minmax(0,1fr) auto 64px;gap:7px;margin:0;padding-top:9px;border-top:1px solid #e1ebe3}
.lesson-controls .control-playback .playback-tools label{margin:0}
.lesson-controls .control-playback .playback-tools .follow-toggle{margin:0;padding:0;gap:5px;font-size:11px;font-weight:500;white-space:normal;line-height:1.4}
.lesson-controls .control-playback .playback-tools #speed{width:64px;height:32px}
.lesson-controls .control-ab{display:flex;flex-direction:column}
.lesson-controls .control-ab .ab-loop-status{margin-top:9px;font-size:10px}
main>.note-box{margin:12px 0 0;padding:10px 0}
@media(min-width:761px){
 /* Only the video, current sentence and control card determine the shared
    height. The decorative note sits below the workspace, outside both panes. */
 .workspace{align-items:stretch}
 .workspace>.content-pane{contain:size;align-self:stretch;height:auto;max-height:none;min-height:0}
 .workspace>.content-pane>.panel:not([hidden]){height:auto;max-height:none;flex:1 1 0;min-height:0}
 .workspace>.content-pane #panel-transcript .transcript-viewport{height:auto;flex:1 1 0;min-height:0}
 .workspace>.content-pane #panel-transcript .transcript-toolbar{flex:none}
}
@media(min-width:761px) and (max-width:1090px){
 .lesson-controls .controls-main-grid{grid-template-columns:minmax(0,1fr)}
}
@media(max-width:360px){
 .lesson-controls .control-playback .transport{grid-template-columns:30px minmax(0,1fr) 30px auto;gap:4px}
 .lesson-controls .control-playback .transport>button{padding-inline:6px;font-size:11px}
 .lesson-controls .control-playback .transport>button:first-child,
 .lesson-controls .control-playback .transport>button:nth-child(3){width:30px}
}


/* Balanced desktop margins; preserve the existing 16px top inset. */
@media(min-width:1101px){
 main{width:auto;max-width:none;margin-left:188px;margin-right:12px;padding-top:16px}
 .workspace{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:20px}
 .watch-pane>.current-card{height:136px;min-height:136px;max-height:136px}
 main>.note-box{margin-top:8px;padding:6px 0;align-items:center}
 main>.note-box .tb-mascot{width:40px;height:40px;flex-basis:40px}
 main>footer{margin-top:6px;padding:8px 0}
}


/* A small, stable set of sentence frames, with details below the sentence. */
#perspectiveFilters.sentence-frame-filters{display:flex;flex-direction:column;max-height:none;overflow:visible;gap:8px;padding-bottom:10px;container-type:inline-size}
#perspectiveFilters.sentence-frame-filters .frame-status-row{display:flex;align-items:center;flex-wrap:wrap;gap:6px}
#perspectiveFilters.sentence-frame-filters .frame-status-row button{min-height:32px;padding:5px 9px;font-size:11px;gap:8px}
#perspectiveFilters.sentence-frame-filters .frame-core-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-auto-rows:1fr;gap:6px}
#perspectiveFilters.sentence-frame-filters .frame-core-grid>button{width:100%;min-width:0;min-height:34px;display:flex;justify-content:space-between;align-items:center;gap:7px;text-align:left;padding:6px 9px;font-size:12px;line-height:1.4;margin:0}
#perspectiveFilters.sentence-frame-filters .frame-filter-name{min-width:0;font:inherit;color:inherit;white-space:normal;overflow-wrap:normal}
#perspectiveFilters.sentence-frame-filters .frame-filter-count{flex:none;font-size:10px;line-height:1.5;min-width:22px;padding:1px 4px;border-radius:4px;background:#e6eee5;color:#56705a;font-variant-numeric:tabular-nums;text-align:center}
#perspectiveFilters.sentence-frame-filters button.selected .frame-filter-count{background:#cfe4d2;color:#245937}
@container(max-width:540px){#perspectiveFilters.sentence-frame-filters .frame-core-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.sentence-frame-card .frame-summary{display:flex;flex-direction:column;align-items:flex-start;gap:5px;margin:10px 0}
.frame-label{display:inline-flex;align-items:center;background:#eaf2e9;color:#2f6046;border:1px solid #d2e2d4;border-radius:6px;padding:3px 8px;font-size:11px;font-weight:600}
.frame-formula{font-size:12px;color:#597361;line-height:1.6}
.frame-needs-review .frame-label{background:#f5f6f2;color:#697666;border-color:#e0e4da}
.sentence-frame-details{border-top:1px solid #e1e9e2;margin-top:10px;padding-top:9px;font-size:12px;color:#4e6a58}
.sentence-frame-details summary{cursor:pointer;font-size:11px;font-weight:500;color:#396b4f}
.sentence-frame-details>p{font-size:12px;line-height:1.7;margin:9px 0}
.sentence-frame-details .frame-evidence{display:grid;grid-template-columns:minmax(100px,.7fr) minmax(0,1.3fr);gap:12px;padding:8px 0;border-bottom:1px solid #e5ece5}
.frame-evidence span{font-size:11px;color:#637866}
.frame-evidence strong{font-size:14px;font-weight:500;color:#254f38;overflow-wrap:anywhere}
.sentence-frame-details .frame-scope{font-size:11px}
.frame-extras{margin-top:12px;padding:12px;border-radius:8px;background:#f5f8f2;border:1px solid #e0e9dc}
.frame-extras h3{font-size:12px;margin:0 0 10px}
.frame-extras>div+div{border-top:1px solid #dfe8db;padding-top:8px}
.frame-extras strong{font-size:12px;font-weight:500}
.frame-extras p{font-size:14px;margin:3px 0 8px;color:#365d42}
@media(max-width:760px){#perspectiveFilters.sentence-frame-filters .frame-core-grid>button{font-size:11px}.sentence-frame-details .frame-evidence{grid-template-columns:minmax(0,1fr);gap:3px}}


/* Consistent filter grids inside the existing study-panel dimensions. */
#tenseFilters.compact-study-filters,
#perspectiveFilters.compact-study-filters{display:flex;flex-direction:column;flex-wrap:nowrap;gap:7px;container-type:inline-size;min-width:0;overflow-y:auto;overflow-x:hidden;scrollbar-width:thin;overscroll-behavior:contain;flex:none;padding-bottom:10px}
#tenseFilters.compact-study-filters{max-height:185px}
#perspectiveFilters.compact-study-filters{max-height:160px}
.compact-study-filters .compact-filter-top{position:static;top:auto;z-index:auto;flex:none;display:flex;gap:6px;align-items:center;background:#fff;padding:0 0 5px}
.compact-study-filters .compact-filter-grid{flex:none;width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;min-width:0}
#tenseFilters.compact-study-filters button,
#perspectiveFilters.compact-study-filters button{min-width:0;min-height:34px;display:flex;justify-content:space-between;align-items:center;gap:7px;padding:6px 9px;line-height:1.4;font-size:12px;text-align:left;white-space:normal}
.compact-study-filters .compact-filter-grid>button{width:100%;height:100%;margin:0}
#tenseFilters.compact-study-filters .filter-option-name,
#perspectiveFilters.compact-study-filters .filter-option-name{min-width:0;font:inherit;color:inherit;opacity:1;white-space:normal;overflow-wrap:normal}
#tenseFilters.compact-study-filters .filter-option-count,
#perspectiveFilters.compact-study-filters .filter-option-count{flex:none;min-width:22px;padding:1px 4px;border-radius:4px;background:#e6eee5;color:#56705a;font-size:10px;line-height:1.5;font-variant-numeric:tabular-nums;text-align:center}
#tenseFilters.compact-study-filters button.selected .filter-option-count,
#perspectiveFilters.compact-study-filters button.selected .filter-option-count{background:#cfe4d2;color:#245937}
.compact-study-filters .compact-filter-heading{font-size:11px;color:#587461;margin:3px 0 0;padding-top:7px;border-top:1px solid var(--line)}
@container(max-width:540px){.compact-study-filters .compact-filter-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){#tenseFilters.compact-study-filters button,#perspectiveFilters.compact-study-filters button{font-size:11px}}


/* Collapsed group pickers keep the lesson content directly below the tabs. */
.filter-picker{flex:none;min-width:0;margin:0 0 10px;border:1px solid #d3e2d5;border-radius:8px;background:#f8fbf7;overflow:hidden}
.filter-picker>summary{display:flex;align-items:center;gap:10px;min-height:36px;padding:7px 10px;list-style:none;cursor:pointer;font-size:12px;line-height:1.5;color:#315b46}
.filter-picker>summary::-webkit-details-marker{display:none}
.filter-picker>summary::marker{content:''}
.filter-picker .picker-title{flex:none;font-size:11px;color:#587461}
.filter-picker .picker-current{flex:1;min-width:0;font-weight:600;overflow-wrap:anywhere}
.filter-picker .picker-arrow{flex:none;font-size:17px;line-height:1;transition:transform .15s}
.filter-picker[open]{border-color:#86b097;background:#fff}
.filter-picker[open] .picker-arrow{transform:rotate(180deg)}
#tenseFilterPicker #tenseFilters,
#perspectiveFilterPicker #perspectiveFilters{margin:0;padding:8px;border:0;border-top:1px solid #dfe9df;overflow-y:auto;overflow-x:hidden}
#tenseFilterPicker #tenseFilters{max-height:132px}
#perspectiveFilterPicker #perspectiveFilters{max-height:132px}
.filter-picker #grammarCounts,.filter-picker #perspectiveHint{margin:8px 10px;font-size:11px;line-height:1.6;color:#587461}
#tenseFilterPicker #tenseCategoryHint{margin:8px 10px;padding:7px 9px;border-radius:6px;background:#f0f5ed;color:#486752;font-size:11px;line-height:1.6}


/* The entire option list scrolls together, without an overlapping sticky row. */
#perspectiveFilterPicker #perspectiveFilters.sentence-frame-filters{flex-wrap:nowrap}
.filter-picker .frame-core-grid,.filter-picker .frame-status-row{flex:none;width:100%}