/* English with Yana — lesson engine styles
   Layout: centred 800px column; sections may sit in a tinted box; blocks may carry photos left/right/top
   and a background from the palette. One muted plum accent. */
:root{
  --paper:#F6F6F3; --paper-2:#EDEDE8; --card:#FFFFFF;
  --ink:#1E2226; --ink-soft:#5D646B; --line:#DCDDD7;
  --accent:#5E4A6E; --accent-soft:#ECE7F0; --on-accent:#FFFFFF;
  --ok:#3B7A57; --ok-soft:#E1EFE6; --bad:#B0493A; --bad-soft:#F6E2DD;
  /* block palette */
  --bg-lilac:#ECE7F0; --bg-sage:#E4ECE3; --bg-sand:#F2ECE1; --bg-mist:#E3EAF0; --bg-rose:#F4E6E6; --bg-butter:#F5EFD6;
  --f-display:"Newsreader","Iowan Old Style",Georgia,serif;
  --f-body:"Instrument Sans","Helvetica Neue",Arial,sans-serif;
  --wrap:800px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --paper:#141618; --paper-2:#1C1F22; --card:#1F2326; --ink:#E7E8E6; --ink-soft:#A0A6AB; --line:#31363B;
  --accent:#C2A9D6; --accent-soft:#2A2431; --on-accent:#1E1A22;
  --ok:#7CC49A; --ok-soft:#19281F; --bad:#EE8E7C; --bad-soft:#33201C;
  --bg-lilac:#2A2431; --bg-sage:#1B241C; --bg-sand:#26221B; --bg-mist:#18212A; --bg-rose:#2C1F21; --bg-butter:#29261A;
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --paper:#141618; --paper-2:#1C1F22; --card:#1F2326; --ink:#E7E8E6; --ink-soft:#A0A6AB; --line:#31363B;
  --accent:#C2A9D6; --accent-soft:#2A2431; --on-accent:#1E1A22;
  --ok:#7CC49A; --ok-soft:#19281F; --bad:#EE8E7C; --bad-soft:#33201C;
  --bg-lilac:#2A2431; --bg-sage:#1B241C; --bg-sand:#26221B; --bg-mist:#18212A; --bg-rose:#2C1F21; --bg-butter:#29261A;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.55}
[hidden]{display:none!important}
h1,h2,h3{font-family:var(--f-display);font-weight:500;line-height:1.12;margin:0;text-wrap:balance}
p{margin:0}
button,select,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

/* hero */
.hero{position:relative;color:#F4F2F6;background-color:#26313B;background-image:linear-gradient(180deg,rgba(12,16,22,.30),rgba(12,16,22,.78)),var(--hero-img,linear-gradient(135deg,#2F4250,#3E3549));background-size:cover;background-position:center 45%;padding-block:clamp(64px,10vw,120px) clamp(32px,5vw,52px)}
.hero h1{font-size:clamp(30px,4.2vw,46px);color:#fff;max-width:20ch;line-height:1.05}
.hero h1 em{color:#DCCBEA}
.hero p{color:rgba(244,242,246,.86);font-size:16px;max-width:46ch;margin-top:12px}
.chips{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.chip{font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;padding:4px 9px;border-radius:4px;border:1px solid rgba(255,255,255,.35);color:rgba(255,255,255,.88)}

/* sections */
.sec{padding-block:clamp(28px,4vw,44px)}
.sec + .sec{border-top:1px solid var(--line)}
.sec.boxed{border-top:0;padding-block:16px}
.sec.boxed > .wrap{border-radius:16px;padding-block:clamp(22px,3.5vw,34px);padding-left:max(clamp(16px,3.5vw,32px),env(safe-area-inset-left,0px));padding-right:max(clamp(16px,3.5vw,32px),env(safe-area-inset-right,0px))}
.sec.boxed + .sec{border-top:0}
@media (max-width:840px){.sec.boxed > .wrap{border-radius:0}.sec.boxed{padding-block:0}}
.sec-head{display:flex;flex-direction:column;gap:6px;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.eyebrow{font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.sec-head h2{font-size:clamp(24px,2.8vw,30px)}
.emoji{font-style:normal;margin-right:.3em}
.blocks{display:flex;flex-direction:column;gap:16px}

/* palette */
.bg-lilac{background:var(--bg-lilac)} .bg-sage{background:var(--bg-sage)} .bg-sand{background:var(--bg-sand)}
.bg-mist{background:var(--bg-mist)} .bg-rose{background:var(--bg-rose)} .bg-butter{background:var(--bg-butter)}

/* block frame */
.blk{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:clamp(16px,2.4vw,22px);min-width:0;position:relative}
.blk[class*="bg-"]{border-color:transparent}
.blk.plain{background:transparent;border:0;padding:0}
.blk-head{margin-bottom:12px}
.blk-title{font-family:var(--f-display);font-weight:500;font-size:17px;line-height:1.3}
.blk-hint{font-size:13.5px;color:var(--ink-soft);margin-top:3px}
.blk-num{color:var(--accent);margin-right:6px}
.teacher-only{outline:1px dashed var(--accent);outline-offset:3px}
.teacher-tag{position:absolute;top:-10px;right:12px;background:var(--accent);color:var(--on-accent);font-size:10.5px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;padding:2px 8px;border-radius:99px}

/* media layouts */
.with-media{display:grid;gap:18px;align-items:stretch}
.with-media.pos-left{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr)}
.with-media.pos-right{grid-template-columns:minmax(0,1.25fr) minmax(0,1fr)}
.with-media.pos-right .media{order:2}
.with-media.pos-top{grid-template-columns:1fr}
.with-media > *{min-width:0}
.media{display:grid;gap:8px;min-height:220px}
.media figure{margin:0;position:relative;border-radius:10px;overflow:hidden;background:var(--paper-2);min-height:0}
.media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.media.n1 figure{height:100%}
.media.n3{grid-template-columns:1.2fr 1fr;grid-template-rows:1fr 1fr}
.media.n3 figure:first-child{grid-row:span 2}
.pos-top .media{min-height:0}
.pos-top .media.n1 figure{aspect-ratio:21/9}
.pos-top .media.n3{grid-template-columns:1fr 1.5fr 1fr;grid-template-rows:200px}
.pos-top .media.n3 figure:first-child{grid-row:auto}
@media (max-width:680px){
  .with-media.pos-left,.with-media.pos-right{grid-template-columns:1fr}
  .with-media.pos-right .media{order:0}
  .media{min-height:0}
  .media.n1 figure{aspect-ratio:4/3;height:auto}
  .media.n3{grid-template-rows:110px 110px}
  .pos-top .media.n3{grid-template-rows:130px}
}

/* two-column row of blocks */
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:stretch}
.row2 > *{min-width:0}
@media (max-width:680px){.row2{grid-template-columns:1fr}}

/* text */
.rich p + p{margin-top:10px}
.rich em{font-family:var(--f-display);font-size:1.05em}
.rich b,.rich strong{font-weight:600}
.rich ul{margin:6px 0;padding-left:1.2em}
.note{border-left:3px solid var(--accent);padding:10px 14px;background:var(--accent-soft);border-radius:0 8px 8px 0;font-size:14.5px}

/* controls */
.btn{border:1px solid var(--ink);border-radius:6px;padding:6px 14px;cursor:pointer;font-size:13px;font-weight:500;background:var(--ink);color:var(--paper)}
.btn:hover{opacity:.88}
.btn.ghost{background:transparent;color:var(--ink-soft);border-color:var(--line)}
.btn.small{padding:4px 10px;font-size:12px}
.actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-top:14px}
.score{font-size:12.5px;color:var(--ink-soft);font-variant-numeric:tabular-nums}
select,.gap{border:1px solid var(--line);background:var(--paper);border-radius:6px;padding:3px 7px;max-width:100%;font-size:14.5px}
.gap{width:8.5em}
.gap::placeholder{color:var(--ink-soft);opacity:.6;font-style:italic}
.ok{border-color:var(--ok)!important;background:var(--ok-soft)!important}
.bad{border-color:var(--bad)!important;background:var(--bad-soft)!important}
.fix{font-size:13px;margin-left:6px;line-height:1.4}
.fix s{color:var(--bad)} .fix b{color:var(--ok);font-weight:600}
.praise{color:var(--ok);font-weight:600} .comfort{color:var(--ink-soft);font-weight:500}
.line{padding:9px 0;border-top:1px solid var(--line);line-height:2.1}
.line:first-child{border-top:0}
.n{font-size:12px;color:var(--ink-soft);margin-right:6px;font-variant-numeric:tabular-nums}

/* choice */
.choices{display:flex;flex-direction:column;gap:6px;margin-top:6px}
.choice{display:flex;gap:8px;align-items:flex-start;text-align:left;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:7px 10px;cursor:pointer;font-size:14.5px;line-height:1.4;width:100%}
.choice .l{font-size:12px;font-weight:600;padding-top:1px;color:var(--ink-soft)}
.choice.sel{border-color:var(--accent);background:var(--accent-soft)}
.choice.right{border-color:var(--ok);background:var(--ok-soft)}
.choice.wrong{border-color:var(--bad);background:var(--bad-soft)}
.q + .q{margin-top:14px}
.q-text{font-size:15px}
.why{margin-top:8px;font-size:14px;line-height:1.5;background:var(--ok-soft);border-left:2px solid var(--ok);border-radius:0 8px 8px 0;padding:8px 12px}
.why b{color:var(--ok)}

/* true/false/not given */
.tf{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px 14px;align-items:center;padding:9px 0;border-top:1px solid var(--line)}
.tf:first-child{border-top:0}
.tf-opts{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden}
.tf-opts button{border:0;background:var(--paper);padding:5px 11px;cursor:pointer;font-size:12.5px;font-weight:600;color:var(--ink-soft)}
.tf-opts button + button{border-left:1px solid var(--line)}
.tf-opts button.sel{background:var(--accent);color:var(--on-accent)}
.tf-opts button.right{background:var(--ok);color:#fff}
.tf-opts button.wrong{background:var(--bad);color:#fff}
.tf .why{grid-column:1/-1;margin-top:0}
@media (max-width:520px){.tf{grid-template-columns:1fr}}

/* word bank / tap-to-place */
.bank{display:flex;flex-wrap:wrap;gap:6px;padding:10px;border:1px dashed var(--line);border-radius:10px;margin-bottom:12px;min-height:44px}
.tok{border:1px solid var(--line);background:var(--card);border-radius:99px;padding:3px 12px;cursor:pointer;font-size:14.5px;font-family:var(--f-display)}
.tok.sel{border-color:var(--accent);background:var(--accent-soft);color:var(--accent)}
.tok.used{opacity:.35;pointer-events:none}
.slot{display:inline-block;min-width:5.5em;border-bottom:1.5px solid var(--ink-soft);padding:0 6px;margin:0 2px;cursor:pointer;text-align:center;font-family:var(--f-display);line-height:1.6;border-radius:4px 4px 0 0}
.slot.filled{border-bottom-color:var(--accent);background:var(--accent-soft)}
.slot.ok{border-bottom-color:var(--ok)} .slot.bad{border-bottom-color:var(--bad)}

/* word order */
.build{min-height:42px;border-bottom:1.5px solid var(--line);display:flex;flex-wrap:wrap;gap:6px;padding:6px 0;margin-bottom:8px}
.ord + .ord{margin-top:16px}

/* sort into columns */
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr));gap:10px}
.col{border:1px solid var(--line);border-radius:10px;padding:10px;min-height:96px;cursor:pointer;background:var(--paper)}
.col h4{margin:0 0 6px;font-family:var(--f-display);font-weight:500;font-size:15px}
.col .tok{margin:3px 3px 0 0}
.col.target{border-color:var(--accent)}

/* match */
.mrow{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:6px 14px;align-items:center;padding:8px 0;border-top:1px solid var(--line)}
.mrow:first-child{border-top:0}
.mrow select{width:100%}
.mrow .fix{display:block;margin:4px 0 0}
@media (max-width:520px){.mrow{grid-template-columns:1fr}}

/* audio */
.audio{display:flex;flex-direction:column;gap:10px}
.track{border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:var(--paper)}
.track-top{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:8px 12px;align-items:center}
.track-main{min-width:0;display:flex;flex-direction:column;gap:2px}
.track-ctrl{display:flex;gap:6px;align-items:center}
@media (max-width:560px){.track-top{grid-template-columns:auto minmax(0,1fr)}.track-ctrl{grid-column:1/-1}}
.play{width:38px;height:38px;border-radius:50%;border:0;background:var(--accent);color:var(--on-accent);cursor:pointer;display:grid;place-items:center;flex:none}
.play svg{width:16px;height:16px;fill:currentColor}
.track-title{font-family:var(--f-display);font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.seek{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-soft);font-variant-numeric:tabular-nums}
.seek input{flex:1;accent-color:var(--accent)}
.speeds{display:inline-flex;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.speeds button{border:0;background:transparent;padding:3px 8px;font-size:12px;cursor:pointer;color:var(--ink-soft)}
.speeds button + button{border-left:1px solid var(--line)}
.speeds button.on{background:var(--accent);color:var(--on-accent)}
.script-btn{border:1px solid var(--line);background:transparent;border-radius:6px;padding:3px 9px;font-size:12px;cursor:pointer;color:var(--ink-soft)}
.script-btn[aria-pressed="true"]{border-color:var(--accent);color:var(--accent)}
.script{margin-top:10px;font-size:14.5px;line-height:1.6;border-top:1px solid var(--line);padding-top:10px}
.script p + p{margin-top:6px}
.script .who{font-weight:600;color:var(--accent);margin-right:4px}
.try{font-size:12.5px;color:var(--ink-soft)}
.try label{color:var(--accent);cursor:pointer;text-decoration:underline}

/* video */
.video{position:relative;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#000}
.video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.video-empty{aspect-ratio:16/9;border:1px dashed var(--line);border-radius:10px;display:grid;place-items:center;text-align:center;padding:16px;background:var(--paper-2)}
.video-empty form{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;margin-top:8px}
.video-empty input{border:1px solid var(--line);background:var(--card);border-radius:6px;padding:6px 9px;width:min(320px,70vw)}

/* dialogue */
.dlg-roles{display:flex;gap:6px;align-items:center;flex-wrap:wrap;margin-bottom:12px;font-size:13px;color:var(--ink-soft)}
.dlg{display:flex;flex-direction:column;gap:8px}
.bubble{max-width:82%;padding:8px 12px;border-radius:14px;font-size:15px;line-height:1.45}
.bubble .who{display:block;font-size:11px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-bottom:2px;opacity:.75}
.bubble.a{align-self:flex-start;background:var(--paper-2);border-bottom-left-radius:4px}
.bubble.b{align-self:flex-end;background:var(--accent-soft);border-bottom-right-radius:4px}
.bubble.mine .txt{filter:blur(6px);cursor:pointer;user-select:none}
.bubble.mine.peek .txt{filter:none}

/* speaking cards */
.deck{display:flex;flex-direction:column;gap:14px;min-height:170px;justify-content:space-between}
.deck .card-q{font-family:var(--f-display);font-size:clamp(19px,2.3vw,24px);line-height:1.28}
.deck .card-q em{color:var(--accent)}
.deck-nav{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.deck-count{margin-left:auto;font-size:12.5px;color:var(--ink-soft)}

/* wordlist */
.wl{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.4fr);gap:0 16px}
.wl > div{padding:7px 0;border-top:1px solid var(--line)}
.wl > div:nth-child(-n+2){border-top:0}
.wl .w{font-family:var(--f-display);font-size:16px}
.wl .d{font-size:14px}
.wl .x{font-family:var(--f-display);font-style:italic;color:var(--ink-soft);font-size:14.5px}
@media (max-width:520px){.wl{grid-template-columns:1fr}.wl > div:nth-child(2n){border-top:0;padding-top:0}}

/* writing */
.writing textarea{width:100%;min-height:150px;resize:vertical;border:1px solid var(--line);background:var(--paper);border-radius:8px;padding:10px 12px;font-size:15px;line-height:1.55}
.wc{font-size:12.5px;color:var(--ink-soft)}
.wc.okc{color:var(--ok);font-weight:600}

/* translate */
.tr{padding:9px 0;border-top:1px solid var(--line)}
.tr:first-child{border-top:0}
.tr .src{font-size:15px;margin-bottom:6px}
.tr input{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:6px;padding:6px 9px}
.tr .fix{display:block;margin:4px 0 0}

/* animations */
@keyframes ewyPop{0%{transform:scale(1)}40%{transform:scale(1.05)}100%{transform:scale(1)}}
@keyframes ewyShake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-3px)}80%{transform:translateX(3px)}}
@keyframes ewySay{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.anim-pop{animation:ewyPop .35s ease-out}
.anim-shake{animation:ewyShake .4s ease-in-out}
.say{animation:ewySay .3s ease-out}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:50}

/* gallery page helpers */
.spec{font-size:12px;color:var(--ink-soft);font-family:ui-monospace,Menlo,monospace;margin:-6px 0 4px}
footer.site{padding-block:28px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-soft)}

/* palette on blocks: must come after .blk so the colour wins over the white card */
.blk.bg-lilac{background:var(--bg-lilac)} .blk.bg-sage{background:var(--bg-sage)} .blk.bg-sand{background:var(--bg-sand)}
.blk.bg-mist{background:var(--bg-mist)} .blk.bg-rose{background:var(--bg-rose)} .blk.bg-butter{background:var(--bg-butter)}

/* runtime: saving pill, watch bar, teacher pointer */
.sync-pill{position:fixed;right:max(12px,env(safe-area-inset-right,0px));bottom:calc(12px + env(safe-area-inset-bottom,0px));z-index:40;background:var(--card);border:1px solid var(--line);color:var(--ink-soft);font-size:12px;font-weight:500;padding:6px 12px;border-radius:99px;box-shadow:0 4px 14px rgba(0,0,0,.08)}
.sync-pill[data-s="saved"]{color:var(--ok);border-color:var(--ok)}
.sync-pill[data-s="error"]{color:var(--bad);border-color:var(--bad)}
.watch-bar{position:sticky;top:0;z-index:30;background:var(--accent);color:var(--on-accent);font-size:13px;padding:8px max(16px,env(safe-area-inset-left,0px));text-align:center}
[data-pt]{position:relative;scroll-margin-top:72px}
.pt-btn{position:absolute;top:-11px;right:12px;z-index:5;border:1px solid var(--accent);background:var(--card);color:var(--accent);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:3px 9px;border-radius:99px;cursor:pointer}
.pt-btn:hover{background:var(--accent);color:var(--on-accent)}
.sec-head .pt-btn{top:0}
@keyframes ewyPoint{0%{box-shadow:0 0 0 0 rgba(94,74,110,.55)}70%{box-shadow:0 0 0 14px rgba(94,74,110,0)}100%{box-shadow:0 0 0 0 rgba(94,74,110,0)}}
.pt-flash{outline:3px solid var(--accent);outline-offset:4px;border-radius:12px;animation:ewyPoint 1.2s ease-out 3}
.pt-label{position:absolute;left:12px;top:-13px;z-index:6;background:var(--accent);color:var(--on-accent);font-size:11px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:99px;pointer-events:none}
.mrow.example{color:var(--ink-soft)}

/* grammar tables and rules (used in text blocks) */
.tbl{overflow-x:auto}
.gtable{width:100%;border-collapse:collapse}
.gtable th{text-align:left;font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);padding:6px 10px;border-bottom:1px solid var(--line)}
.gtable td{padding:8px 10px;border-bottom:1px solid var(--line);font-family:var(--f-display);font-size:16.5px;vertical-align:top}
.gtable tr:last-child td{border-bottom:0}
.gtable td.lbl{font-family:var(--f-body);font-size:11px;font-weight:600;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.1em;white-space:nowrap}
.rich b{color:var(--accent)}
.g-eg{list-style:none;padding:0;margin:8px 0 0;display:flex;flex-direction:column;gap:4px}
.g-eg li{font-family:var(--f-display);font-size:17px}
.gl{font-family:var(--f-body);font-size:13px;color:var(--ink-soft);margin-left:8px}
.g-rules{list-style:none;padding:0;margin:0}
.g-rules li{padding:9px 0;border-top:1px solid var(--line)}
.g-rules li:first-child{border-top:0;padding-top:0}
.g-rules strong{font-weight:600}
.x{text-decoration:line-through;color:var(--bad)}
.x + .v{margin-left:6px}
.v{color:var(--ok);font-weight:600}
.v::before{content:"\2713  "}
.choice s{color:var(--bad)} .choice ins{text-decoration:none;color:var(--ok);font-weight:600}

/* inline gaps: keep the focus ring tight so it never covers the words around the gap */
.line select,.line .gap,.line .slot,.q-text select{margin:0 4px}
.line select:focus-visible,.line .gap:focus-visible,.q-text select:focus-visible,.mrow select:focus-visible,.tr input:focus-visible,
.line select:focus,.line .gap:focus,.q-text select:focus{outline:none;box-shadow:0 0 0 2px var(--accent);border-color:var(--accent)}

/* free production: model answer to compare with, no marking */
.tr textarea{width:100%;border:1px solid var(--line);background:var(--paper);border-radius:6px;padding:7px 10px;resize:vertical;font-size:15px;line-height:1.5}
.model{margin-top:8px;background:var(--accent-soft);border-radius:8px;padding:9px 12px;font-family:var(--f-display);font-size:16px}
.model-label{display:block;font-family:var(--f-body);font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:2px}
.model-alt{font-family:var(--f-body);font-size:13px;color:var(--ink-soft);margin-top:4px}

/* ===== vocabulary trainer block (List / Cards / Write / Test) =====
/* vocabulary trainer */
.vstats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin-bottom:16px}
.vs{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px;display:flex;flex-direction:column;gap:2px}
.vs-n{font-family:var(--f-display);font-size:24px;line-height:1.1;font-variant-numeric:tabular-nums}
.vs-l{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.vbar{grid-column:1/-1;height:6px;border-radius:99px;background:var(--paper-2);overflow:hidden}
.vbar span{display:block;height:100%;width:0;background:var(--accent);transition:width .3s}
.vtools{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.tabs{display:inline-flex;background:var(--paper-2);border-radius:8px;padding:3px;gap:2px}
.tabs button{border:0;background:transparent;padding:6px 14px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:500;color:var(--ink-soft)}
.tabs button[aria-selected="true"]{background:var(--card);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.lang{display:inline-flex;align-items:center;gap:4px;font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.lang span{margin-right:4px}
.lang button{border:1px solid var(--line);background:transparent;border-radius:6px;padding:4px 9px;cursor:pointer;font-size:12px;font-weight:600;color:var(--ink-soft)}
.lang button[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:var(--on-accent)}
.vlist-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:10px}
.vlist{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:4px 18px}
.vrow{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.6fr);gap:6px 18px;padding:11px 0;border-top:1px solid var(--line)}
.vrow:first-child{border-top:0}
.vrow > *{min-width:0}
.vt{font-family:var(--f-display);font-size:17px}
.vrow.is-known .vt::after{content:" \2713";color:var(--ok);font-family:var(--f-body);font-size:13px}
.vd{font-size:14.5px}
.vex{font-family:var(--f-display);font-style:italic;font-size:15px;color:var(--ink-soft);margin-top:2px}
.vex b{font-style:normal;color:var(--accent);font-weight:500}
.blank{display:inline-block;min-width:3em;border-bottom:1px solid var(--ink-soft);text-align:center;font-style:normal}
.peekable{transition:filter .15s}
.hide-terms .vt:not(.peek),.hide-defs .vd:not(.peek){filter:blur(7px);cursor:pointer;user-select:none}
@media (max-width:560px){.vrow{grid-template-columns:1fr}.vstats{grid-template-columns:repeat(3,minmax(0,1fr))}.vs-n{font-size:20px}}
.vc{perspective:1200px;cursor:pointer;max-width:560px}
.vc-inner{position:relative;min-height:220px;transition:transform .45s;transform-style:preserve-3d}
.vc.flipped .vc-inner{transform:rotateY(180deg)}
.vc-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:14px;padding:24px 26px;display:flex;flex-direction:column;justify-content:center;gap:10px;border:1px solid var(--line);background:var(--card)}
.vc-front{background:var(--accent-soft);border-color:transparent}
.vc-back{transform:rotateY(180deg)}
.vc-prompt{font-family:var(--f-display);font-size:22px;line-height:1.25}
.vc-term{font-family:var(--f-display);font-size:30px;line-height:1.1;color:var(--accent)}
.vc-ex{font-family:var(--f-display);font-style:italic;font-size:16px;color:var(--ink-soft)}
.vc-ex b{font-style:normal;color:var(--ink);font-weight:500}
.vc-hint{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-top:6px}
.vw{max-width:560px}
.vw-top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:12px}
.vw-prompt{font-family:var(--f-display);font-size:21px;line-height:1.3}
.vw-ex{font-family:var(--f-display);font-style:italic;font-size:16px;color:var(--ink-soft);margin-top:6px}
.vw-form{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}
.vw-in{flex:1;min-width:180px;width:auto;font-size:16px;padding:7px 10px}
.vw-fb{min-height:24px;margin-top:10px;font-size:14.5px}
.vw-fb s{color:var(--bad)}
.vw-fb b{color:var(--ok);font-weight:600}
.vw-fb .good{color:var(--ok);font-weight:600}
.vw-fb .note{color:var(--ink-soft);font-size:13px}
.vt-item{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:6px 16px;padding:11px 0;border-top:1px solid var(--line);align-items:start}
.vt-item:first-child{border-top:0}
.vt-q .n{font-size:12px;color:var(--ink-soft);margin-right:6px}
.vt-prompt{font-size:15px}
.vt-in{width:100%}
.vt-a .fix{display:block;margin:4px 0 0}
@media (max-width:560px){.vt-item{grid-template-columns:1fr}}

.vw-box,.vt-box{max-width:620px}
.vt-box .actions{margin-top:12px}
.vc-msg{min-height:22px;margin-top:8px;font-size:14px}
.vw-fb .good{color:var(--ok);font-weight:600}
/* writing: send to Yana + feedback */
.subs{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.sub{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--paper);font-size:14.5px}
.sub-when{font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:4px}
.sub-text{white-space:pre-wrap}
.sub-fb{margin-top:8px;background:var(--accent-soft);border-radius:8px;padding:8px 12px}
.sub-fb b{display:block;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:2px}
.sub-wait{margin-top:6px;font-size:13px;color:var(--ink-soft);font-style:italic}

/* voice recording */
.voice-text{background:var(--paper);border-radius:8px;padding:10px 12px;font-family:var(--f-display);font-size:16.5px;line-height:1.5}
.btn.rec{display:inline-flex;align-items:center;gap:7px;background:var(--card);color:var(--ink);border-color:var(--line)}
.btn.rec .dot{width:10px;height:10px;border-radius:50%;background:#D23B2C;display:inline-block}
.btn.rec.on{border-color:#D23B2C;color:#D23B2C}
.btn.rec.on .dot{animation:ewyBlink 1s steps(2,start) infinite}
@keyframes ewyBlink{to{visibility:hidden}}
.voice-player{width:100%;margin-top:10px}
.rec-time{font-variant-numeric:tabular-nums}

/* use the words */
.use-row{display:grid;grid-template-columns:auto minmax(0,200px) minmax(0,1fr);gap:6px 10px;align-items:start;padding:10px 0;border-top:1px solid var(--line)}
.use-row:first-child{border-top:0}
.use-row .n{padding-top:7px}
.use-row select{width:100%}
.use-row textarea{width:100%;min-width:0;resize:vertical;border:1px solid var(--line);background:var(--paper);border-radius:6px;padding:6px 9px;font-size:15px;line-height:1.45}
.use-row textarea::placeholder{color:var(--ink-soft);opacity:.6;font-style:italic}
.use-hint{grid-column:3;font-size:12.5px}
.use-hint.good{color:var(--ok);font-weight:600} .use-hint.warn{color:var(--ink-soft)}
@media (max-width:600px){.use-row{grid-template-columns:auto minmax(0,1fr)}.use-row textarea,.use-hint{grid-column:1/-1}}
.sub-list{margin:4px 0 0;padding-left:1.3em}
.sub-w{font-size:12px;color:var(--accent);font-weight:600}

/* explanation steps: 1, 2, 3 in circles, following the explanation, not the page (as on the first lesson page) */
.blk.is-step{border-color:transparent;padding:18px 20px}
.is-step .blk-head{margin-bottom:10px}
.is-step .blk-title{display:flex;align-items:center;gap:10px;font-size:18px}
.step-n{display:inline-grid;place-items:center;width:22px;height:22px;border-radius:99px;background:var(--accent);color:var(--on-accent);font-family:var(--f-body);font-size:12px;font-weight:600;flex:none}
.is-step .rich p,.is-step .rich li{font-size:15px}
/* examples and rules start at the left edge, like the text */
.rich .g-eg,.rich .g-rules{padding-left:0}
.rich .g-eg{margin:10px 0 0}
.rich .g-eg li{font-size:17px}
.rich p.gl{margin:14px 0 0;font-size:15px}
.rich .tbl + p{margin-top:14px}
/* pictures block */
.imgs{display:grid;gap:10px}
.imgs.cols-2{grid-template-columns:1fr 1fr} .imgs.cols-3{grid-template-columns:1fr 1fr 1fr}
.imgs figure{margin:0;min-width:0}
.imgs img{display:block;width:100%;height:auto;border-radius:10px}
.imgs.crop img{aspect-ratio:4/3;object-fit:cover}
.imgs figcaption{font-size:13px;color:var(--ink-soft);margin-top:5px}
.imgs-empty{border:1px dashed var(--line);border-radius:10px;padding:30px;text-align:center;color:var(--ink-soft);font-size:13px}
@media (max-width:560px){.imgs.cols-3{grid-template-columns:1fr 1fr}}

/* text styles from the builder toolbar */
.rich h4{font-family:var(--f-display);font-weight:500;font-size:17px;margin:16px 0 6px}
.rich h4:first-child{margin-top:0}
.f-serif{font-family:var(--f-display);font-size:1.08em}
.f-big{font-size:1.2em}
.f-small{font-size:13px;color:var(--ink-soft)}
.c-acc{color:var(--accent)} .c-red{color:var(--bad)} .c-green{color:var(--ok)} .c-grey{color:var(--ink-soft)}
.rich ol{margin:6px 0;padding-left:1.4em}
.vw-fb .vw-note{color:var(--ink-soft);font-size:13px}

/* lesson / homework tabs */
.hw-tag{display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;background:var(--bg-butter);color:var(--ink);padding:2px 8px;border-radius:99px;margin-bottom:6px}
.ltabs{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--paper) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.ltabs .wrap{display:flex;gap:4px;padding-block:8px}
.ltabs button{border:0;background:transparent;border-radius:8px;padding:7px 14px;font-size:14px;font-weight:600;color:var(--ink-soft);cursor:pointer;display:inline-flex;align-items:center;gap:7px}
.ltabs button[aria-selected="true"]{background:var(--accent);color:var(--on-accent)}
.ltabs .badge{font-size:11px;font-weight:600;padding:1px 7px;border-radius:99px;background:var(--bg-butter);color:var(--ink)}
.ltabs button[aria-selected="true"] .badge{background:rgba(255,255,255,.25);color:inherit}
.hw-hidden{display:none!important}
.handin{margin:28px auto 0;max-width:640px;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px;display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.handin h3{font-family:var(--f-display);font-weight:500;font-size:20px;margin:0}
.handin p{margin:0;color:var(--ink-soft);font-size:14.5px}
.handin .status{font-size:14px;font-weight:600}
.handin .status.done{color:var(--ok)} .handin .status.wait{color:var(--accent)} .handin .status.back{color:var(--bad)}
.handin .note{margin:0;background:var(--accent-soft);border-left:0;border-radius:8px;padding:10px 12px;font-size:14.5px;color:var(--ink);white-space:pre-wrap}

/* Yana's comments and feedback */
.pt-btn.cm-btn{right:118px}
.tc-ed{margin-top:12px;border:1px dashed var(--accent);border-radius:10px;padding:10px 12px;background:var(--accent-soft);display:flex;flex-direction:column;gap:8px}
.tc-label{font-size:10.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.tc-input{width:100%;border:1px solid var(--line);background:var(--card);border-radius:8px;padding:8px 10px;font:inherit;font-size:14.5px;line-height:1.5;resize:vertical;color:var(--ink)}
.tc-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.tc-msg{font-size:12.5px;color:var(--ink-soft)}
.tcomment{margin-top:12px;background:var(--accent-soft);border-radius:10px;padding:10px 14px;font-size:14.5px}
.tcomment b{display:block;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:3px}
.handin.teacher{border:2px solid var(--accent)}
.handin.teacher .tc-input{min-height:70px}
.watch-reload{margin-left:8px;border:1px solid rgba(255,255,255,.6);background:transparent;color:inherit;border-radius:99px;padding:2px 10px;font:600 12px var(--f-body);cursor:pointer}

/* teacher tools in Watch live */
.ttools{position:fixed;right:max(14px,env(safe-area-inset-right,0px));bottom:max(14px,env(safe-area-inset-bottom,0px));z-index:45;display:flex;flex-direction:column;align-items:flex-end;gap:8px;max-width:calc(100vw - 28px)}
.tt-bar{display:flex;gap:6px}
.tt-bar .btn{box-shadow:0 6px 18px -10px rgba(40,30,60,.5)}
.tt-panel,.tt-timer{width:min(360px,calc(100vw - 28px));background:var(--card);border:1px solid var(--accent);border-radius:12px;padding:12px 14px;box-shadow:0 18px 40px -20px rgba(40,30,60,.5);display:flex;flex-direction:column;gap:8px}
.tt-panel .tc-input{min-height:140px}
.tt-clock{font:500 44px/1 var(--f-display);font-variant-numeric:tabular-nums;text-align:center;padding:6px 0}
.tt-timer.done .tt-clock{color:var(--bad);animation:ewyPoint 1s ease-out 3}
.tt-presets{justify-content:center}

/* live lesson */
.back-link{position:fixed;top:max(12px,env(safe-area-inset-top,0px));left:max(12px,env(safe-area-inset-left,0px));z-index:46;background:rgba(255,255,255,.92);color:#2B2230;text-decoration:none;font:600 13px var(--f-body);padding:7px 14px;border-radius:99px;box-shadow:0 6px 18px -10px rgba(0,0,0,.5);backdrop-filter:blur(6px)}
.back-link:hover{background:#fff}
.watch-bar .back-link{position:static;display:inline-block;margin-right:12px;padding:3px 12px;background:rgba(255,255,255,.18);color:inherit;box-shadow:none}
.watch-bar .presence{opacity:.9}
.back-link.in-tabs{position:static;box-shadow:none;background:var(--paper-2);color:var(--ink);margin-right:8px;align-self:center;padding:6px 12px}
.live-pill{position:fixed;top:max(64px,calc(env(safe-area-inset-top,0px) + 58px));right:max(12px,env(safe-area-inset-right,0px));z-index:46;background:var(--accent);color:var(--on-accent);font:600 12.5px var(--f-body);padding:7px 14px;border-radius:99px;box-shadow:0 6px 18px -10px rgba(0,0,0,.5)}
.live-pill::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:#7CE0A4;margin-right:7px;vertical-align:1px}
.live-timer{position:fixed;top:max(108px,calc(env(safe-area-inset-top,0px) + 102px));right:max(12px,env(safe-area-inset-right,0px));z-index:46;background:var(--card);color:var(--ink);border:2px solid var(--accent);font:500 26px/1 var(--f-display);font-variant-numeric:tabular-nums;padding:10px 16px;border-radius:16px;box-shadow:0 10px 26px -14px rgba(0,0,0,.5)}
.live-timer.done{border-color:var(--bad);color:var(--bad);animation:ewyPoint 1s ease-out 3}

/* homework built live */
.pt-btn.hw-btn{right:224px}
.pt-btn.hw-btn:disabled{opacity:.7;cursor:default}
.hwb{position:fixed;inset:0;z-index:80;background:var(--paper);display:flex;flex-direction:column}
.hwb-bar{display:flex;align-items:center;gap:14px;padding:10px 16px;border-bottom:1px solid var(--line);background:var(--card)}
.hwb-bar b{font-family:var(--f-display);font-weight:500;font-size:18px}
.hwb-note{font-size:13px;color:var(--ink-soft);flex:1}
.hwb iframe{flex:1;border:0;width:100%}
.hw-news{position:fixed;left:50%;bottom:max(18px,env(safe-area-inset-bottom,0px));transform:translateX(-50%);z-index:50;border:0;background:var(--accent);color:var(--on-accent);font:600 14px var(--f-body);padding:11px 20px;border-radius:99px;cursor:pointer;box-shadow:0 12px 28px -14px rgba(0,0,0,.6)}

.gram-tag{position:absolute;top:-10px;left:12px;background:var(--bg-sage);color:var(--ink);font-size:10.5px;font-weight:600;letter-spacing:.06em;padding:2px 9px;border-radius:99px}

/* exercises without numbers on their sentences: a whole text or a dialogue */
.blk.nonum .line > .n,.blk.nonum .q-text > .n,.blk.nonum .tf .n,.blk.nonum .mrow .n,.blk.nonum .ord > .n,.blk.nonum .tr .n{display:none}

/* games */
.game .tb-rules{color:var(--ink-soft);max-width:60ch;margin:0 0 12px}.game .tb-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.tb-lab{display:block;font-size:11.5px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);margin:10px 0 6px}.tb-row .tb-lab{display:inline;margin:0}
.tb-top{display:flex;gap:16px;align-items:center;justify-content:space-between;flex-wrap:wrap;font-size:14px;margin-bottom:12px}
.tb-clock{font:500 24px/1 var(--f-display);font-variant-numeric:tabular-nums;padding:6px 14px;border-radius:99px;background:var(--paper-2)}.tb-clock.low{color:var(--bad,#b0493a)}
.tb-card{border:2px solid var(--accent);border-radius:18px;padding:22px 20px;text-align:center;background:var(--card,#fff);margin-bottom:12px}
.tb-word{font:500 clamp(28px,4vw,40px)/1.1 var(--f-display)}.tb-no{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}.tb-no span{padding:4px 12px;border-radius:99px;background:var(--bad-soft,#f6e3df);text-decoration:line-through;text-decoration-color:rgba(176,73,58,.5)}
.tb-hidden{border-style:dashed;color:var(--ink-soft)}.tb-hidden .tb-word{font-size:48px}
.tb-res{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:8px}.tb-w{display:inline-block;padding:3px 10px;border-radius:99px;background:var(--paper-2);margin:0 4px 6px 0}
@media (max-width:560px){.tb-res{grid-template-columns:1fr}}
.jeo-top{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:15px;margin-bottom:10px}
.jeo-board{display:grid;gap:6px}.jeo-h{font:600 12.5px/1.25 var(--f-body);text-align:center;padding:8px 4px;color:var(--ink-soft);overflow-wrap:anywhere}
.jeo-cell{border:0;border-radius:12px;background:var(--accent);color:var(--on-accent);font:500 clamp(18px,2.4vw,24px) var(--f-display);padding:16px 4px;cursor:pointer}
.jeo-cell:hover:not(:disabled){filter:brightness(1.08)}.jeo-cell.done{background:var(--paper-2);color:var(--ink-soft);cursor:default}.jeo-cell.done.right{color:var(--ok,#3b7a57)}.jeo-cell.empty{background:transparent}
.jeo-q{border:2px solid var(--accent);border-radius:18px;padding:22px 20px;text-align:center}.jeo-cat{font-size:12.5px;color:var(--ink-soft);letter-spacing:.04em;margin-bottom:10px}
.jeo-text{font:500 clamp(20px,2.6vw,26px)/1.3 var(--f-display);margin-bottom:14px}.jeo-ans{font-size:18px;padding:10px 14px;border-radius:12px;background:var(--ok-soft,#e6f1ea);display:inline-block;margin-bottom:6px}
.jeo-q .actions{justify-content:center}

/* link with a preview */
.linkcard{display:grid;grid-template-columns:minmax(0,200px) minmax(0,1fr);border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--card);color:var(--ink);text-decoration:none;transition:border-color .15s}
.linkcard:hover{border-color:var(--accent)}.linkcard.no-img{grid-template-columns:1fr}
.lc-img{background-size:cover;background-position:center;min-height:130px;background-color:var(--paper-2)}
.lc-body{display:flex;flex-direction:column;gap:6px;padding:14px 18px;min-width:0}.lc-title{font:500 19px/1.25 var(--f-display);overflow-wrap:anywhere}
.lc-desc{font-size:14px;color:var(--ink-soft);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.lc-host{font-size:12.5px;color:var(--accent);margin-top:auto}
@media (max-width:560px){.linkcard{grid-template-columns:1fr}.lc-img{min-height:150px}}