/* English 90 mobile-first layer (T19). Loaded last. Designed for 360-430px phones; on wide screens the same phone-like column is
   centred (max ~600px) instead of shrinking anything. Bottom tab bar replaces the top navigation everywhere. */
:root{--col:600px;--tab-h:68px;--safe-b:env(safe-area-inset-bottom,0px);--safe-t:env(safe-area-inset-top,0px);--tap:52px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;-webkit-tap-highlight-color:transparent}
body{font-size:18px;line-height:1.5;overflow-x:clip;min-height:100vh;min-height:100dvh;padding-left:env(safe-area-inset-left,0);padding-right:env(safe-area-inset-right,0)}
img,svg,video{max-width:100%}
h1{font-size:clamp(1.9rem,8vw,2.4rem)}
h2{font-size:1.35rem}
h3{font-size:1.2rem}
.hint,.g-esl,.vex,.ncap{font-size:1rem}

/* ---------- layout column ---------- */
main{max-width:var(--col);margin:0 auto;padding:14px 14px calc(var(--tab-h) + var(--safe-b) + 24px)}
.topbar{position:sticky;top:0;z-index:30;padding:calc(10px + var(--safe-t)) max(16px,env(safe-area-inset-right,0px)) 14px max(16px,env(safe-area-inset-left,0px));max-width:var(--col);margin:0 auto;gap:12px}
body{background:var(--bg)}
@media (min-width:700px){
  body{background:color-mix(in srgb,var(--bg) 82%,#7b8dc4)}
  main,.topbar{background:var(--bg)}
  .topbar{background:var(--band)}
  main{min-height:100vh;border-left:2px solid var(--border);border-right:2px solid var(--border)}
  .topbar{border-left:2px solid var(--band);border-right:2px solid var(--band)}
}
.brand{font-size:1.5rem}
.theme-btn{width:48px;height:48px;font-size:1.3rem}

/* ---------- bottom tab bar ---------- */
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:40;display:flex;justify-content:space-around;align-items:stretch;
  max-width:var(--col);margin:0 auto;height:calc(var(--tab-h) + var(--safe-b));padding:0 4px var(--safe-b);
  background:var(--surface);border-top:4px solid var(--border);border-radius:22px 22px 0 0;box-shadow:0 -4px 0 rgba(31,58,120,.06)}
.tabbar a{position:relative;flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;
  text-decoration:none;color:var(--muted);font-weight:800;font-size:.8rem;line-height:1.1;border-radius:16px;margin:6px 2px;min-height:var(--tap)}
.tabbar a i{font-style:normal;font-size:1.55rem;line-height:1}
.tabbar a span{max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tabbar a.active{background:var(--surface2);color:var(--brand)}
.tabbar a:active{transform:scale(.95)}
.tabbar .badge{position:absolute;top:0;right:calc(50% - 30px);min-width:22px;font-size:.78rem;margin:0;padding:0 6px;line-height:20px;height:20px}
body.in-lesson .tabbar,body.in-lesson .topbar{display:none}
body.in-lesson main{padding-bottom:0}

/* ---------- tap targets ---------- */
.btn,.g-btn,.opt,.lopt,.wtile,.mtile,.speak,.check,.wday,.theme-btn,.gfav,.linkbtn,.gadd,.morerow,.hstat select,.gl-controls select{min-height:var(--tap)}
.btn,.g-btn{font-size:1.1rem;padding:10px 22px}
.speak{font-size:1.05rem;padding:8px 18px}
.gfav{min-width:var(--tap);font-size:1.9rem}
.linkbtn{padding:12px 4px;display:inline-flex;align-items:center}
.check{padding:12px 16px;font-size:1.1rem}
.check input{width:26px;height:26px}
.wday{padding:12px 16px;font-size:1.05rem}
.gl-check input,.gl-check{min-height:var(--tap)}
.gl-check input{width:24px;height:24px}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;width:100%}
.pager .btn{width:100%}
.hero{align-items:flex-start}

/* exercise buttons: full width, big */
.opts{grid-template-columns:1fr}
.opt{width:100%;text-align:left;font-size:1.15rem;padding:12px 20px}
.lopts{gap:12px}
.lopt{font-size:1.2rem;padding:14px 20px;min-height:60px}
.lopt .key{width:32px;height:32px;font-size:.9rem}
.wtile{font-size:1.2rem;padding:10px 18px;min-height:var(--tap)}
.mtile{font-size:1.15rem;min-height:64px}
.rate{grid-template-columns:repeat(2,1fr);gap:12px}
.rate .btn{min-height:60px;font-size:1.15rem}
.fillrow{flex-direction:column}
.fillrow .btn{width:100%}

/* ---------- inputs: >=16px so iOS never zooms ---------- */
input,select,textarea,.linput,.gl-search,.fillrow input,input[type=text],input[type=search]{font-size:18px!important;min-height:var(--tap)}
.fillrow input,.linput,.gl-search,input[type=text],input[type=search]{width:100%;min-width:0;padding:12px 18px}
.gl-controls{flex-direction:column;align-items:stretch}
.gl-controls select{width:100%;font-size:18px}
.gl-search{min-width:0}

/* ---------- pages ---------- */
.g-wrap{border-radius:26px;margin-bottom:18px}
.g-band{padding:18px 18px 38px;gap:14px}
.g-band h1{font-size:clamp(1.9rem,8.5vw,2.5rem)}
.g-sub{font-size:1.05rem;padding:4px 16px}
.g-body{padding:10px 6px 0;gap:16px}
.g-grid{grid-template-columns:1fr;padding:12px 10px 0}
.g-panel,.g-panel.w3,.g-panel.w6{grid-column:1/-1}
.g-head{padding:10px 12px}
.g-head h2{font-size:1.4rem}
.g-num{width:48px;height:48px;font-size:1.7rem}
.g-inner{margin:0 6px;padding:12px}
.g-panel{border-width:4px}
.g-panel:has(.infographic) .g-inner{padding:6px}
.g-inner,.g-inner p,.g-inner li,.g-lead,.tip,.task,.jobcard,.ex p{font-size:1.05rem;line-height:1.5}
.g-pill{font-size:1.3rem;padding:4px 20px}
.g-lead{font-size:1.1rem;margin:10px 16px 0}
.g-tools{padding:14px 14px 4px}
.g-tools .g-btn,.g-tools .btn{flex:1 1 100%}
.vgrid{grid-template-columns:1fr;gap:14px}
.vmedia{height:150px}
.ven{font-size:1.3rem}.ves{font-size:1.1rem}
.phrases li{font-size:1.1rem;flex-wrap:wrap}
.wdays{grid-template-columns:1fr}
.checklist{grid-template-columns:1fr}
.unit{max-width:none}
.gl-list{grid-template-columns:1fr}
.gentry{padding:14px;gap:12px}
.gen{font-size:1.4rem}
.gactions .speak,.gactions .gadd{flex:1 1 auto;justify-content:center}
.stats{gap:10px}.stat{font-size:1.05rem;padding:8px 16px}
.fcface{min-height:300px}.fcface .en{font-size:2.2rem}
.bubble{max-width:92%;font-size:1.1rem}
.chatlog{max-height:none;min-height:240px}
.chip{font-size:.9rem;padding:2px 14px}

/* HUD: compact, wraps, no overlap */
.hud{top:calc(64px + var(--safe-t));padding:10px 12px}
.hstat{font-size:1.15rem}
.hstat select{font-size:1rem}
.ringwrap{width:48px;height:48px}
.ringtxt{font-size:.85rem}
.lvl{font-size:.85rem}

/* path */
.ubanner{flex-wrap:wrap}
.utitle{font-size:1.25rem}
.node{width:84px;height:84px}
.node .nicon{font-size:2rem}
.node .nnum{min-width:32px;height:32px;font-size:.95rem}
.nodewrap{width:170px}
.ncap{font-size:.95rem;max-width:170px}

/* ---------- infographics: readable without zoom ---------- */
.infographic{overflow:hidden}
.infographic svg{width:100%;height:auto;display:block}
.zoombtn{width:100%;margin-top:12px}
.posterview{position:fixed;inset:0;z-index:80;background:#fffdf8;overflow:auto;-webkit-overflow-scrolling:touch;padding:calc(72px + var(--safe-t)) 0 var(--safe-b)}
.posterclose{position:fixed;top:calc(10px + var(--safe-t));right:12px;z-index:81}
.posterbox{width:1000px;max-width:none}
.posterbox svg{width:1000px;height:auto;display:block}
body.no-scroll{overflow:hidden}
.g-panel .infographic{margin:0}
.grt,.grammar-art{max-width:100%}

/* ---------- lesson session (Duolingo mobile) ---------- */
.lesson{max-width:var(--col);min-height:100vh;min-height:100dvh;margin:0 auto;padding:0}
.ltop{position:sticky;top:0;z-index:25;background:var(--bg);padding:calc(10px + var(--safe-t)) 14px 12px;gap:12px;margin:0 -14px;width:calc(100% + 28px);border-bottom:3px solid var(--border)}
.lclose{min-width:var(--tap);min-height:var(--tap);display:grid;place-items:center;font-size:1.8rem}
.lbar{height:22px}
.lhearts{font-size:1.4rem}
.lmute{min-width:var(--tap);min-height:var(--tap);font-size:1.5rem}
.lstage{padding:16px 2px calc(210px + var(--safe-b));gap:18px}
.ltitle{font-size:1.5rem}
.imedia{width:min(46vw,24dvh,200px);height:min(46vw,24dvh,200px);font-size:clamp(3rem,12dvh,5.5rem)}
.iword{font-size:2.3rem;padding:6px 28px;flex-wrap:wrap;justify-content:center}
.ies{font-size:1.5rem}
.ipa,.iex{font-size:1.1rem}
.bigspeak{width:72px;height:72px;font-size:2rem}
.slowspeak{width:56px;height:56px;font-size:1.4rem}
.abtns{align-self:center}
.cloze{font-size:1.5rem}
.bline{min-height:76px}
.cbanner{font-size:1.05rem}
.sheet{padding:16px 16px calc(18px + var(--safe-b));left:50%;right:auto;transform:translateX(-50%);width:100%;max-width:var(--col);z-index:45;gap:12px}
.sheet>*{max-width:none}
.sheetmsg{font-size:1.15rem}
.sheetmsg b{font-size:1.3rem}
.lcheck{min-height:60px;font-size:1.2rem}
.endcard.g-wrap{margin:14px auto}
.endstats{gap:10px}.es b{font-size:1.7rem}
.endbtns .btn{flex:1 1 100%}
.toast{bottom:calc(var(--tab-h) + var(--safe-b) + 16px);font-size:1.05rem}
body.in-lesson .toast{bottom:calc(120px + var(--safe-b))}

/* ---------- More page ---------- */
.morelist{display:grid;gap:12px}
.morerow{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:22px;border:3px solid var(--bd);background:var(--surface);color:var(--text);text-decoration:none}
.morerow i{font-style:normal;font-size:2rem;flex:none}
.morerow span{display:flex;flex-direction:column;min-width:0}
.morerow b{font-size:1.25rem;font-weight:800;color:var(--badge)}
.morerow small{font-size:1rem;color:var(--muted);font-weight:600}
.more-extra{display:grid;gap:12px}
.more-extra .btn{width:100%}
.more-note{font-size:1rem;color:var(--muted);margin:0}

/* offline / update banner */
.netbar{position:fixed;left:0;right:0;top:0;z-index:60;text-align:center;font-weight:800;font-size:1rem;padding:calc(6px + var(--safe-t)) 12px 6px;background:#ffedb0;color:#5a3d00}

@media (prefers-reduced-motion:reduce){.tabbar a:active{transform:none}}

/* ======================= native-app feel ======================= */
html,body{overscroll-behavior:none}
*{scrollbar-width:none}
*::-webkit-scrollbar{display:none;width:0;height:0}
button,.btn,.g-btn,.tabbar a,.opt,.lopt,.wtile,.mtile,.node,.speak,.morerow,.wday,.dnext,.dback,.dclose,.resumecard,.theme-btn,.sheet,.xs-sheet{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none;touch-action:manipulation}
a,button,input,select,label{-webkit-tap-highlight-color:transparent}
.btn:active,.opt:active,.lopt:active,.wtile:active,.mtile:active,.morerow:active,.speak:active{transform:scale(.97)}

/* skeleton instead of "Loading..." text */
.loading{font-size:0;color:transparent;min-height:min(60vh,420px);border-radius:32px;margin:6px 0;
  background:linear-gradient(100deg,var(--surface2) 30%,var(--surface) 50%,var(--surface2) 70%);background-size:300% 100%;animation:skel 1.3s linear infinite}
@keyframes skel{from{background-position:100% 0}to{background-position:0 0}}

/* page / screen transitions */
#app>*{animation:page-in .22s ease-out}
@keyframes page-in{from{opacity:0;transform:translateX(18px)}to{opacity:1;transform:none}}
.slide-fwd{animation:sl-fwd .26s ease-out}
.slide-back{animation:sl-back .26s ease-out}
@keyframes sl-fwd{from{opacity:0;transform:translateX(44px)}to{opacity:1;transform:none}}
@keyframes sl-back{from{opacity:0;transform:translateX(-44px)}to{opacity:1;transform:none}}

/* ---------- deck: one screen at a time ---------- */
body.in-deck main{padding:0;max-width:var(--col)}
body.in-deck #app>*{animation:none}
.deck,.wordview{display:flex;flex-direction:column;height:100vh;height:100dvh;max-width:var(--col);margin:0 auto;background:var(--bg)}
.wordview{position:fixed;inset:0;z-index:90}
.dhead{display:flex;align-items:center;gap:8px;padding:calc(8px + var(--safe-t)) 10px 8px;flex:none}
.dback,.dclose{flex:none;width:48px;height:48px;border-radius:50%;border:0;background:transparent;color:var(--brand);font:inherit;font-size:2.1rem;line-height:1;font-weight:700;cursor:pointer;display:grid;place-items:center;padding:0}
.dclose{font-size:1.4rem;color:var(--muted)}
.dback:active,.dclose:active{background:var(--surface2)}
.dmid{flex:1;min-width:0}
.dtitle{font-weight:800;font-size:1rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}
.dbar{height:14px;border-radius:999px;background:var(--surface2);border:2px solid var(--border);overflow:hidden}
.dbar>i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand2),var(--green));border-radius:999px;transition:width .3s}
.dcount{flex:none;font-weight:800;font-size:1rem;color:var(--muted);min-width:44px;text-align:right}
.dstage{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;padding:6px 14px}
.dscreen{margin:auto 0;width:100%}
.dfoot{flex:none;padding:10px 16px calc(14px + var(--safe-b))}
.dnext{width:100%;min-height:60px;font-size:1.25rem;border-bottom-width:6px}
.dnext[disabled]{background:var(--surface2);border-color:var(--border);color:var(--muted);opacity:1}
.dcard{background:var(--bg);border:5px solid var(--bd);border-radius:32px;padding:18px 16px;display:flex;flex-direction:column;gap:12px;color:var(--text);text-align:left}
.dcard.c-blue{--bg:#cfe8ff}
.dh2{margin:0;font-size:1.6rem;color:var(--badge);line-height:1.15}
.dkick{font-weight:800;font-size:.95rem;letter-spacing:.06em;text-transform:uppercase;color:var(--badge);opacity:.9}
.dmedia{align-self:center;display:grid;place-items:center;width:min(44vw,26dvh,200px);height:min(44vw,26dvh,200px);font-size:clamp(3.5rem,14dvh,6rem);border-radius:28px;background:var(--pill);border:4px solid var(--bd);overflow:hidden}
.dmedia img{width:100%;height:100%;object-fit:cover}
.dword{align-self:center}
.dword .g-pill{font-size:clamp(1.8rem,7vw,2.4rem);padding:6px 26px}
.dipa{align-self:center;font-size:1.15rem}
.dmean{align-self:center;text-align:center;font-size:1.5rem}
.dcard .vex{align-self:center;text-align:center;font-size:1.1rem}
.dplay{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.dplay .speak,.dsay{min-height:56px;font-size:1.15rem;padding:10px 22px}
.dsay.on{background:var(--greenS);border-color:var(--greenD)}
.dphrase{font-size:clamp(1.5rem,6.4vw,2rem);font-weight:800;line-height:1.25;text-align:center;margin:8px 0;color:var(--text)}
.dcard .hint{text-align:center;margin:0}
.dcard.poster{padding:10px;align-items:stretch}
.poster svg{width:100%;height:auto;max-height:64dvh;display:block}
.dcard .jobcard,.dcard .task,.dcard .tip{margin:0}
.dlinks{display:grid;gap:10px}
.dcard .ex{border:0;background:transparent;padding:0;margin:0}
.dcard .ex p{font-size:1.35rem}
.dcard .fb{font-size:1.1rem}
.dintro{align-items:center;text-align:center}
.dintro .gart,.dintro .g-flag{width:120px;height:120px}
.dgw{border:0;box-shadow:none;background:transparent;margin:0;overflow:visible;padding:0}
.dgw .g-body{padding:0}
.dgw .g-panel{margin:0}
.wordview .dcard{--bg:var(--surface)}

/* ---------- exit confirmation (bottom sheet) ---------- */
.xs-overlay{position:fixed;inset:0;z-index:100;background:rgba(10,16,40,.55);display:flex;align-items:flex-end;justify-content:center;animation:fade-in .18s}
.xs-sheet{width:100%;max-width:var(--col);background:var(--surface);color:var(--text);border-radius:30px 30px 0 0;padding:24px 18px calc(18px + var(--safe-b));display:flex;flex-direction:column;gap:12px;animation:sheet-up .26s ease-out;border-top:5px solid var(--border)}
.xs-title{margin:0;font-size:1.6rem}
.xs-msg{margin:0 0 6px;color:var(--muted);font-size:1.1rem}
.xs-actions{display:grid;gap:12px}
.xs-actions .btn{width:100%;min-height:58px;font-size:1.2rem}
.xs-yes{border-color:var(--bad)!important;color:var(--bad)!important}
@keyframes sheet-up{from{transform:translateY(100%)}to{transform:none}}
@keyframes fade-in{from{opacity:0}to{opacity:1}}

/* ---------- resume card, settings ---------- */
.resumecard{display:flex;align-items:center;gap:14px;padding:14px 16px;margin:0 0 12px;border-radius:26px;background:var(--navy);color:#fff;text-decoration:none;border:4px solid var(--brand2)}
.rc-ico{flex:none;width:48px;height:48px;border-radius:50%;background:#fff;color:var(--navy);display:grid;place-items:center;font-size:1.3rem}
.rc-txt{display:flex;flex-direction:column;min-width:0}
.rc-txt b{font-size:1.2rem}.rc-txt small{font-size:1rem;opacity:.9}
.sfield{display:flex;flex-direction:column;gap:6px;font-weight:800;font-size:1.05rem;margin-bottom:12px;color:var(--text)}
.sfield select{width:100%;border:3px solid var(--bd,var(--border));border-radius:999px;background:var(--surface);color:var(--text);padding:8px 18px;font-weight:700}

/* splash while the app boots */
#splash{position:fixed;inset:0;z-index:200;background:#1f3a78;display:grid;place-items:center;transition:opacity .3s}
#splash img{width:132px;height:132px;border-radius:30px;animation:splash-pop .6s ease-out}
#splash.out{opacity:0;pointer-events:none}
@keyframes splash-pop{from{transform:scale(.6);opacity:0}to{transform:none;opacity:1}}
@media (display-mode:standalone){body{-webkit-user-select:none;user-select:none}input,textarea{-webkit-user-select:text;user-select:text}}
@media (prefers-reduced-motion:reduce){#app>*,.slide-fwd,.slide-back,.xs-sheet,.xs-overlay,#splash img,.loading{animation:none!important}.dbar>i{transition:none}}

/* login */
.login-overlay{position:fixed;inset:0;z-index:150;background:var(--band);display:grid;place-items:center;padding:20px}
.login-card{width:100%;max-width:420px;background:var(--surface);color:var(--text);border-radius:32px;border:5px solid var(--border);padding:26px 20px;display:flex;flex-direction:column;gap:14px;text-align:center}
.login-card h1{margin:0;font-size:2rem}
.login-card p{margin:0}
.login-logo{align-self:center;background:var(--sub-bg);color:var(--sub-ink);border-radius:999px;padding:4px 20px;font-weight:800;font-size:1.3rem}
.login-card .btn{width:100%;min-height:58px;font-size:1.2rem}
.login-err{color:var(--bad);font-weight:700;min-height:1.4em}
input[type=password]{font-family:var(--font);font-weight:700;border:3px solid var(--border);border-radius:999px;background:var(--surface);color:var(--text);padding:12px 20px;width:100%;font-size:18px}
body.auth-open{overflow:hidden}

/* "Who's studying?" profile picker + PIN pad (big buttons, thumb-sized) */
.login-overlay{overflow-y:auto}
.pp-card{max-width:560px}
.pp-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px}
.pp-face{font:inherit;color:var(--text);background:var(--surface);border:4px solid var(--border);border-radius:24px;padding:14px 8px;display:flex;flex-direction:column;align-items:center;gap:6px;cursor:pointer;min-height:44px}
.pp-face:hover,.pp-face:focus-visible{border-color:var(--band);transform:translateY(-2px)}
.pp-face b{font-size:1.15rem;overflow-wrap:anywhere}
.pp-face small{color:var(--muted,inherit);opacity:.8;font-size:.85rem}
.pp-avatar{display:grid;place-items:center;width:72px;height:72px;border-radius:50%;font-size:2.4rem;background:var(--bg);border:4px solid var(--bd);flex:none}
.pp-avatar.big{width:88px;height:88px;font-size:3rem;align-self:center}
.login-card .pp-out{min-height:48px;font-size:1rem}
.pin-card{max-width:380px;gap:10px}
.pin-backlink{font:inherit;font-weight:800;align-self:flex-start;background:none;border:0;color:var(--text);cursor:pointer;padding:6px 4px;min-height:44px}
.pin-dots{display:flex;justify-content:center;gap:12px;min-height:24px}
.pin-dots i{flex:none;box-sizing:border-box;width:18px;height:18px;border-radius:50%;border:3px solid var(--border);background:transparent}
.pin-dots i.opt{opacity:.45}
.pin-dots i.on{background:var(--band);border-color:var(--band)}
.pin-dots.shake{animation:pin-shake .35s}
@keyframes pin-shake{25%{transform:translateX(-8px)}50%{transform:translateX(8px)}75%{transform:translateX(-4px)}}
.pin-pad{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.pin-key{font:inherit;font-weight:800;font-size:1.7rem;min-height:64px;border-radius:20px;border:4px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;touch-action:manipulation}
.pin-key:active{transform:scale(.96)}
.pin-key.ok{background:var(--band);color:#fff;border-color:var(--band)}
.pin-key.back{font-size:1.4rem}
@media (max-height:640px){.pin-key{min-height:52px;font-size:1.4rem}.pp-avatar.big{width:64px;height:64px;font-size:2.2rem}}
@media (prefers-reduced-motion:reduce){.pin-dots.shake{animation:none}.pp-face:hover{transform:none}}

/* Manage family */
.fm-list{display:flex;flex-direction:column;gap:12px}
.fm-card{background:var(--inner);border:3px solid var(--bd);border-radius:20px;padding:12px}
.fm-head{display:flex;align-items:center;gap:12px}
.fm-head .pp-avatar{width:56px;height:56px;font-size:1.9rem}
.fm-who{flex:1;min-width:0;display:flex;flex-direction:column}
.fm-who b{font-size:1.15rem;overflow-wrap:anywhere}
.fm-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}
.fm-tag{font-size:.75rem;font-weight:800;border-radius:999px;padding:2px 8px;background:var(--surface);border:2px solid var(--bd)}
.fm-body{margin-top:12px}
.fm-form{display:flex;flex-direction:column;gap:10px}
.fm-form input[type=text],.fm-form select,.fm-pin{font:inherit;font-weight:700;border:3px solid var(--border);border-radius:14px;background:var(--surface);color:var(--text);padding:10px 14px;width:100%;box-sizing:border-box;font-size:16px}
.fm-avatars,.fm-colors{display:flex;flex-wrap:wrap;gap:6px}
.fm-av{font-size:1.6rem;width:48px;height:48px;border-radius:14px;border:3px solid var(--border);background:var(--surface);cursor:pointer;padding:0}
.fm-av.on{border-color:var(--band);box-shadow:0 0 0 3px var(--band)}
.fm-sw{width:44px;height:44px;border-radius:50%;border:4px solid var(--bd);background:var(--bg);cursor:pointer;padding:0}
.fm-sw.on{box-shadow:0 0 0 3px var(--band)}
.fm-check{display:flex;align-items:flex-start;gap:10px;font-weight:700;cursor:pointer}
.fm-check input{width:24px;height:24px;flex:none;margin:0}
.fm-actions,.fm-pinrow{display:flex;flex-wrap:wrap;gap:8px;align-items:flex-end}
.fm-pinrow .sfield{flex:1;min-width:160px}
.btn.danger{border-color:var(--bad);color:var(--bad)}

/* Lesson session = one fixed screen (no page scroll at 360x640): top bar, scrollable stage, check/feedback sheet in the flow at the bottom.
   The stage only scrolls inside itself when a step is taller than the screen. */
body.in-lesson .lesson{height:100vh;height:100dvh;min-height:0;display:flex;flex-direction:column;overflow:hidden}
body.in-lesson .lesson>.ltop{flex:none;position:relative;margin:0;width:100%;box-sizing:border-box}
body.in-lesson #app{padding:0}
body.in-lesson .lstage{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;padding:10px 14px 12px;gap:12px}
body.in-lesson .lesson>.sheet{padding-top:12px;padding-bottom:calc(12px + var(--safe-b));gap:8px;position:static;transform:none;left:auto;right:auto;bottom:auto;flex:none;width:100%;max-width:none;box-sizing:border-box}
/* short phones (360x640 and below): tighter lesson steps so a fresh step fits without scrolling */
@media (max-height:700px){
  body.in-lesson .lstage{gap:8px;padding-top:6px}
  body.in-lesson .ltitle{font-size:1.25rem}
  body.in-lesson .lopt{min-height:52px;padding:8px 16px;font-size:1.1rem}
  body.in-lesson .bigspeak{width:56px;height:56px;font-size:1.6rem}
  body.in-lesson .slowspeak{width:46px;height:46px}
  body.in-lesson .wtile{min-height:44px;padding:6px 14px;font-size:1.1rem}
  body.in-lesson .bline{min-height:50px;padding:4px 0}
  body.in-lesson .bbank,body.in-lesson .bline{gap:6px}
  body.in-lesson .cloze{font-size:1.3rem}
  body.in-lesson .lesson>.sheet{padding-top:8px;gap:6px}
}

/* lesson preview as a bottom sheet (T28) */
.pv.pv-sheet{left:0!important;right:0;top:auto!important;bottom:0;width:auto!important;max-width:var(--col);margin:0 auto;border-radius:22px 22px 0 0;border-bottom:0;padding:14px 16px calc(16px + var(--safe-b));max-height:86dvh;animation:pvup .24s ease-out}
.pv.pv-sheet .pv-arrow{display:none}
@media (prefers-reduced-motion:reduce){.pv.pv-sheet{animation:none}}

/* T31: play + slow (turtle) controls, one shared look; 44px+ tap targets */
.speakpair,.g-playpair{display:inline-flex;align-items:center;gap:8px;flex:none}
.speakpair{margin-top:auto;align-self:flex-start}
.dplay .speakpair{margin:0}
.speak.slowbtn{min-width:var(--tap,44px);min-height:var(--tap,44px);padding:8px 14px;font-size:1.15rem;line-height:1}
.dplay .speak.slowbtn{min-width:56px;min-height:56px;padding:10px 18px}
.g-playpair .g-play{width:44px;height:44px}
.gactions .speak.slowbtn{flex:0 0 auto}
.pron-row .pron-model{min-height:var(--tap,44px)}

/* sign out button on More */
.logout-btn{display:block;width:100%;margin:18px 0 8px;min-height:52px;font-weight:800;background:#fff;color:#be123c;border:3px solid #fecdd3;border-radius:18px}
:root[data-theme="dark"] .logout-btn{background:transparent}