:root{
  color-scheme:light;
  --bg:#EEF3F1; --surface:#FFFFFF; --surface-2:#F5F8F7; --line:#D5E1DD; --ink:#13222A; --muted:#566B70;
  --brand:#0E7C66; --brand-deep:#08594A; --brand-soft:#D6EFE7; --on-brand:#FFFFFF;
  --saffron:#DD9226; --saffron-deep:#A96A12; --saffron-soft:#FBE9CC; --saffron-ink:#8A5610;
  --indigo:#3E4FC7; --indigo-deep:#2A3794; --indigo-soft:#E0E4FB;
  --rose:#CF4258; --rose-deep:#9E2C3D; --rose-soft:#FBE0E5;
  --ok:#17925B; --ok-soft:#DBF4E6; --gold:#E8B321; --gold-deep:#B48612;
  --shadow:0 1px 2px rgba(19,34,42,.06),0 6px 20px rgba(19,34,42,.06);
  --radius:16px;
  --f-display:"Baloo Bhaijaan 2","Readex Pro",system-ui,sans-serif;
  --f-body:"Readex Pro",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-ar:"Noto Naskh Arabic","Geeza Pro","Traditional Arabic",serif;
}
@media (prefers-color-scheme:dark){
  :root{
    color-scheme:dark;
    --bg:#0D1618; --surface:#142125; --surface-2:#1A2A2F; --line:#293C41; --ink:#E3EDEA; --muted:#93A8A9;
    --brand:#22A486; --brand-deep:#0F6C58; --brand-soft:#123A32;
    --saffron:#EBAE4A; --saffron-deep:#9E6D1C; --saffron-soft:#3A2C15; --saffron-ink:#F2C77A;
    --indigo:#7B89F2; --indigo-deep:#3E4CB8; --indigo-soft:#1D2347;
    --rose:#EC6C80; --rose-deep:#A83A4B; --rose-soft:#3B1B22;
    --ok:#3CC487; --ok-soft:#123324; --gold:#F0C24A; --gold-deep:#A57E16;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 6px 20px rgba(0,0,0,.25);
  }
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);min-height:100%}
body{color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;padding:env(safe-area-inset-top,0px) 0 env(safe-area-inset-bottom,0px)}
body.playing{overflow:hidden}
button,input,select,textarea{font:inherit;color:inherit}
button,a,label,.tile,.opt,.node{touch-action:manipulation;-webkit-tap-highlight-color:transparent}
h1,h2,h3{font-family:var(--f-display);line-height:1.15;margin:0;text-wrap:balance;font-weight:700}
h1{font-size:32px} h2{font-size:23px} h3{font-size:18px}
p{margin:0}
[hidden]{display:none!important}
img{max-width:100%}
.ar{font-family:var(--f-ar);direction:rtl;unicode-bidi:isolate}
.muted{color:var(--muted)}
.small{font-size:14px}
.lead{font-size:18px}
.display{font-size:clamp(32px,5vw,48px);line-height:1.1}
.label{font-size:12px;text-transform:uppercase;letter-spacing:.08em;font-weight:600;color:var(--muted)}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid var(--indigo);outline-offset:2px;border-radius:6px}

/* ---------- frame ---------- */
.topbar{position:sticky;top:0;z-index:20;background:var(--bg);border-bottom:1px solid var(--line)}
.topbar-in{max-width:1100px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.brand{display:flex;align-items:baseline;gap:8px;font-family:var(--f-display);font-weight:800;font-size:25px;color:var(--brand);background:none;border:0;padding:0;cursor:pointer}
.brand .ar{font-size:22px;font-weight:700;color:var(--ink)}
.tabs{display:flex;gap:4px;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:3px}
.tab{border:0;background:none;padding:8px 18px;border-radius:999px;font-weight:600;cursor:pointer;color:var(--muted);min-height:40px}
.tab[aria-selected="true"]{background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
.spacer{flex:1}
.pill{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;background:var(--surface);border:1px solid var(--line)}
.pill svg{width:17px;height:17px}
.pill.streak{color:var(--saffron-ink)} .pill.xp{color:var(--brand)}
.who-me{display:inline-flex;align-items:center;gap:8px;font-weight:600;background:none;border:0;padding:3px 10px 3px 3px;border-radius:999px;cursor:pointer;min-height:40px}
.who-me:hover{background:var(--surface-2)}
.avatar-txt{width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;font-weight:800;font-family:var(--f-display);flex:none}
.avatar-txt.big{width:52px;height:52px;font-size:22px}
@media (max-width:640px){
  .hide-sm{display:none}
  .topbar-in{row-gap:8px}
  .topbar-in .tabs{order:5;width:100%}
  .topbar-in .tab{flex:1;padding-inline:8px}
  .who-me{padding:3px}
}
.demo-bar{background:var(--saffron-soft);color:var(--ink);font-size:14px;padding:8px 16px;text-align:center}
.wrap{max-width:1100px;margin:0 auto;padding-inline:16px;padding-block:22px 80px;display:flex;flex-direction:column;gap:20px}
.wrap.narrow{max-width:560px}
.grid-2{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:20px;align-items:start}
@media (max-width:900px){.grid-2{grid-template-columns:minmax(0,1fr)}}
.stack{display:flex;flex-direction:column;gap:14px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.row.center{justify-content:center}
.between{justify-content:space-between}
.grow{flex:1;min-width:0}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card.flat{background:var(--surface-2)}
.hero{position:relative;overflow:hidden;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px}
.hero::after{content:"";position:absolute;right:-30px;top:-30px;width:220px;height:220px;opacity:.5;pointer-events:none;
  background:radial-gradient(circle at center,var(--brand-soft) 0 38%,transparent 39%),conic-gradient(from 22.5deg,var(--brand-soft) 0 12.5%,transparent 0 25%,var(--brand-soft) 0 37.5%,transparent 0 50%,var(--brand-soft) 0 62.5%,transparent 0 75%,var(--brand-soft) 0 87.5%,transparent 0);
  -webkit-mask:radial-gradient(circle,black 60%,transparent 61%);mask:radial-gradient(circle,black 60%,transparent 61%)}
.hero>*{position:relative;z-index:1}
.hero-ar{font-family:var(--f-ar);font-size:46px;line-height:1.1;color:var(--brand);font-weight:700}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap;margin-top:14px;align-items:flex-start}
.stat b{display:block;font-family:var(--f-display);font-size:28px;line-height:1;font-variant-numeric:tabular-nums}
.stat span{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.bar{height:10px;border-radius:99px;background:var(--surface-2);overflow:hidden;border:1px solid var(--line);margin-top:6px}
.bar i{display:block;height:100%;background:var(--ok);border-radius:99px}

/* ---------- buttons & inputs ---------- */
.btn{--c:var(--brand);--d:var(--brand-deep);display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:14px;padding:12px 20px;min-height:48px;font-weight:700;letter-spacing:.02em;cursor:pointer;background:var(--c);color:var(--on-brand);box-shadow:0 4px 0 var(--d);transition:transform .06s,box-shadow .06s;text-transform:uppercase;font-size:14px}
.btn:active{transform:translateY(4px);box-shadow:0 0 0 var(--d)}
.btn[disabled]{background:var(--line);color:var(--muted);box-shadow:0 4px 0 color-mix(in srgb,var(--line) 70%,#000 12%);cursor:not-allowed;transform:none}
.btn svg{width:18px;height:18px;flex:none}
.btn.saffron{--c:var(--saffron);--d:var(--saffron-deep)} .btn.indigo{--c:var(--indigo);--d:var(--indigo-deep)} .btn.rose{--c:var(--rose);--d:var(--rose-deep)}
.btn.ghost{background:var(--surface);color:var(--ink);box-shadow:0 3px 0 var(--line);border:2px solid var(--line)}
.btn.ghost:active{box-shadow:none}
.btn.sm{padding:8px 14px;min-height:40px;font-size:13px;border-radius:12px}
.btn.big{padding:15px 26px;min-height:56px;font-size:16px}
.link{background:none;border:0;padding:4px 0;color:var(--brand);font-weight:600;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.icon-btn{width:44px;height:44px;border-radius:12px;border:2px solid var(--line);background:var(--surface);display:inline-grid;place-items:center;cursor:pointer;color:var(--muted);flex:none}
.icon-btn svg{width:20px;height:20px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:14px;font-weight:600;color:var(--muted)}
.input{width:100%;border:2px solid var(--line);background:var(--surface-2);border-radius:12px;padding:12px 14px;min-height:48px;outline:none;min-width:0;font-size:16px}
.input:focus{border-color:var(--indigo);background:var(--surface)}
.input.ar{font-family:var(--f-ar);font-size:24px;line-height:1.3;text-align:right;padding-block:6px}
.input.code{text-transform:uppercase;letter-spacing:.2em;font-weight:700}
textarea.input{resize:vertical}
.err{color:var(--rose);font-size:14px;font-weight:600}
.okmsg{color:var(--ok);font-size:14px;font-weight:600}
.seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{border:2px solid var(--line);background:var(--surface);border-radius:12px;padding:9px 16px;min-height:44px;font-weight:600;cursor:pointer}
.seg button[aria-pressed="true"]{border-color:var(--indigo);background:var(--indigo-soft);color:var(--indigo)}
.chip{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.03em;white-space:nowrap}
.chip svg{width:13px;height:13px}
.chip.writing{background:var(--brand-soft);color:var(--brand)} .chip.speaking{background:var(--saffron-soft);color:var(--saffron-ink)}
.chip.listening{background:var(--indigo-soft);color:var(--indigo)} .chip.done{background:var(--ok-soft);color:var(--ok)}
.chip.new{background:var(--rose-soft);color:var(--rose)} .chip.plain{background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}
.code-chip{letter-spacing:.14em}
.empty{padding:20px;border:2px dashed var(--line);border-radius:14px;text-align:center;color:var(--muted)}
.banner{padding:12px 14px;border-radius:12px;background:var(--saffron-soft)}
.note{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:10px 12px}
.steps{margin:0;padding-left:20px;display:flex;flex-direction:column;gap:4px}

/* ---------- welcome & accounts ---------- */
.welcome{display:flex;flex-direction:column;gap:18px;padding-top:6vh;align-items:center;text-align:center}
.welcome-art{font-size:84px;line-height:1;color:var(--brand);font-weight:700;display:flex;gap:.35em;justify-content:center;direction:rtl}
.welcome h1{max-width:14em}
.welcome .lead{max-width:34em}
.welcome-actions{display:grid;grid-template-columns:minmax(0,1fr);gap:12px;width:100%;max-width:360px;margin-top:6px}
.welcome-actions .btn{width:100%}
.span-2{grid-column:1/-1}
.btn{white-space:nowrap}
.btn.block{width:100%}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:stretch}
@media (max-width:820px){.settings-grid{grid-template-columns:minmax(0,1fr)}}
.account-row{display:flex;align-items:center;gap:12px}
.account-row .chip{margin-left:auto}
.auth{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:24px}
.role-pick{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:480px){.role-pick{grid-template-columns:1fr}}
.role-card{display:flex;flex-direction:column;gap:6px;align-items:flex-start;text-align:left;padding:18px;border:2px solid var(--line);border-radius:18px;background:var(--surface);cursor:pointer;box-shadow:0 4px 0 var(--line)}
.role-card:hover{border-color:var(--brand)}
.role-card:active{transform:translateY(3px);box-shadow:0 1px 0 var(--line)}
.role-card b{font-size:18px}
.role-card[aria-pressed="true"]{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 4px 0 var(--brand)}
.role-ar{font-size:34px;color:var(--brand);line-height:1.2}
/* Google's sign-in button keeps its own white look in both themes */
.btn.google{background:#FFFFFF;color:#1F1F1F;border:2px solid #D5E1DD;box-shadow:0 3px 0 #D5E1DD;text-transform:none;font-size:16px;letter-spacing:0;width:100%}
.btn.google svg{width:20px;height:20px}
.btn.google[disabled]{background:#F1F3F4;color:#5F6368}
.or{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.08em;font-weight:600}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- lists, classes, assignments ---------- */
.list{display:flex;flex-direction:column}
.li{display:flex;align-items:center;gap:12px;padding:14px 0;border-top:1px solid var(--line)}
.li:first-child{border-top:0}
.li .title{font-weight:600;font-size:17px}
.li.asg{align-items:flex-start;flex-wrap:wrap}
.asg-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.asg-score{text-align:right;line-height:1}
.asg-score b{font-family:var(--f-display);font-size:28px;font-variant-numeric:tabular-nums}
.asg-score span{font-size:12px;color:var(--muted)}
.asg-score.reached b{color:var(--ok)}
.class-card{display:flex;align-items:center;gap:14px;padding:14px;border:2px solid var(--line);border-radius:16px;background:var(--surface);cursor:pointer;text-align:left;width:100%;box-shadow:0 3px 0 var(--line)}
.class-card:hover{border-color:var(--brand)}
.class-badge{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-family:var(--f-display);font-size:22px;font-weight:800;background:var(--brand-soft);color:var(--brand);flex:none}
.codebox{font-family:var(--f-display);font-weight:800;font-size:38px;letter-spacing:.18em;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1}
.tip{display:flex;gap:12px;align-items:flex-start}
.tip-mark{width:38px;height:38px;border-radius:12px;background:var(--saffron-soft);color:var(--saffron-ink);display:grid;place-items:center;flex:none}
.tip-mark svg{width:20px;height:20px}
.alpha-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px;direction:rtl}
.alpha-key{aspect-ratio:1;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);font-size:24px;cursor:pointer;padding:0;line-height:1;box-shadow:0 2px 0 var(--line)}
.alpha-key[aria-pressed="true"]{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}

/* ---------- lesson path ---------- */
.path-section+.path-section{margin-top:18px}
.path-head{display:flex;align-items:center;gap:10px}
.path-head::after{content:"";flex:1;height:1px;background:var(--line)}
.path{display:grid;grid-template-columns:repeat(auto-fill,minmax(128px,1fr));gap:22px 12px;padding:18px 0 6px}
.node-row{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:0}
.node-state{min-height:24px;display:flex;align-items:center;justify-content:center}
.node{--c:var(--brand);--d:var(--brand-deep);width:80px;height:74px;border-radius:50%;border:0;background:var(--c);box-shadow:0 7px 0 var(--d);cursor:pointer;display:grid;place-items:center;color:#fff;font-size:28px;font-weight:700}
.node .ar{line-height:1}
.node:active{transform:translateY(5px);box-shadow:0 2px 0 var(--d)}
.node.done{--c:var(--brand);--d:var(--brand-deep)}
.node.gold{--c:var(--gold);--d:var(--gold-deep)}
.node.next{--c:var(--indigo);--d:var(--indigo-deep);outline:5px solid var(--indigo-soft);outline-offset:4px}
.node.locked{--c:var(--line);--d:color-mix(in srgb,var(--line) 70%,#000 15%);color:var(--muted);cursor:not-allowed}
.node.locked svg{width:26px;height:26px}
.node-label{font-weight:700;font-size:14px;line-height:1.25;text-align:center;min-height:2.5em;display:flex;align-items:center;justify-content:center}
.stars{display:inline-flex;gap:2px}
.stars i{width:18px;height:18px;color:var(--line);display:block}
.stars i.on{color:var(--gold)}
.stars svg{width:100%;height:100%}

/* ---------- tables ---------- */
.tbl-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:15px}
th{text-align:left;font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;padding:8px;border-bottom:2px solid var(--line);white-space:nowrap}
td{padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:middle}
tr.detail td{background:var(--surface-2)}
.answers{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.ans{border:1px solid var(--line);border-radius:12px;padding:10px;background:var(--surface);display:flex;flex-direction:column;gap:6px}
.ans.bad{border-color:color-mix(in srgb,var(--rose) 50%,var(--line))}
.prompt-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:10px}
.prompt-tile{border:2px solid var(--line);border-radius:12px;padding:8px;background:var(--surface);display:flex;flex-direction:column;gap:4px}
.prompt-tile.low{border-color:color-mix(in srgb,var(--saffron) 60%,var(--line))}
.prompt-tile img{border-radius:8px;border:1px solid var(--line);background:#fff;aspect-ratio:2/1;object-fit:cover;width:100%}
.prompt-tile b{font-family:var(--f-display);font-size:22px}

/* ---------- progress dashboard ---------- */
:root{--h1:#DDF1EA;--h1-ink:#13222A;--h2:#A8DBC7;--h2-ink:#13222A;--h3:#5FB598;--h3-ink:#0B1A15;--h4:#1F8466;--h4-ink:#FFFFFF}
@media (prefers-color-scheme:dark){:root{--h1:#173A32;--h1-ink:#E3EDEA;--h2:#1F5A4B;--h2-ink:#FFFFFF;--h3:#2C8468;--h3-ink:#FFFFFF;--h4:#52C29C;--h4-ink:#0B1A15}}
.kpis{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
@media (max-width:900px){.kpis{grid-template-columns:repeat(2,minmax(0,1fr))}}
.kpi{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:6px}
.kpi b{font-family:var(--f-display);font-size:34px;line-height:1}
.kpi b small{font-size:16px;color:var(--muted);font-weight:600}
.meter{flex:1;height:10px;min-width:60px;border-radius:99px;background:var(--brand-soft);overflow:hidden}
.meter i{display:block;height:100%;background:var(--brand);border-radius:99px}
.flag{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;background:var(--rose-soft);color:var(--rose);font-size:13px;font-weight:600}
.flag svg{width:14px;height:14px}
.heat{border-collapse:separate;border-spacing:3px;font-size:14px}
.heat th{border:0;padding:4px 6px;font-size:12px;text-transform:none;letter-spacing:0;color:var(--muted);vertical-align:bottom}
.heat th[scope="row"]{text-align:left;white-space:nowrap;font-size:14px;color:var(--ink)}
.heat-head{display:inline-flex;align-items:center;gap:4px;max-width:120px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.heat-head svg{width:13px;height:13px;flex:none}
.heat td{border:0}
.cell{min-width:64px;height:40px;text-align:center;border-radius:8px;font-weight:700;font-variant-numeric:tabular-nums}
.cell.h0{background:var(--surface-2);color:var(--muted);font-weight:500;box-shadow:inset 0 0 0 1px var(--line)}
.cell.h1{background:var(--h1);color:var(--h1-ink)} .cell.h2{background:var(--h2);color:var(--h2-ink)}
.cell.h3{background:var(--h3);color:var(--h3-ink)} .cell.h4{background:var(--h4);color:var(--h4-ink)}
.heat-legend{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.heat-legend span{display:inline-flex;align-items:center;gap:6px}
.heat-legend i.cell{display:inline-block;min-width:0;width:18px;height:14px;border-radius:4px}
.lesson-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.lesson-chip{border:1px solid var(--line);border-radius:12px;padding:8px 10px;display:flex;flex-direction:column;gap:2px;background:var(--surface-2)}
.lesson-chip.done{background:var(--surface);border-color:color-mix(in srgb,var(--brand) 40%,var(--line))}
.lesson-chip.now{border:2px solid var(--indigo);background:var(--indigo-soft)}
.lesson-chip.locked{opacity:.7}
.lesson-chip .stars i{width:14px;height:14px}

/* ---------- class page: suggestion and row actions ---------- */
.suggest{display:flex;align-items:center;gap:16px;padding:14px 16px;border-radius:16px;background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 30%,transparent);flex-wrap:wrap}
.suggest>.grow{flex:1 1 240px}
.suggest .title{font-weight:700;font-size:17px}
.li.tasg{flex-wrap:wrap}
.li.tasg>.grow{flex:1 1 240px}
.suggest-ar{font-size:30px;color:var(--brand);line-height:1.3}
.li-actions{display:flex;align-items:center;gap:8px;flex:none}

/* ---------- new assignment: guided flow ---------- */
.builder-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.stepper{list-style:none;display:flex;gap:6px;margin:0;padding:0}
.stepper button{display:flex;align-items:center;gap:8px;border:0;background:none;padding:5px 12px 5px 5px;border-radius:999px;font-weight:600;color:var(--muted);cursor:pointer;min-height:40px}
.stepper button:disabled{cursor:default;opacity:.55}
.stepper b{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--line);color:var(--muted);font-size:14px}
.stepper b svg{width:14px;height:14px;stroke-width:3}
.stepper .now button{color:var(--ink);background:var(--surface);box-shadow:var(--shadow)}
.stepper .now b{background:var(--brand);color:#fff}
.stepper .done b{background:var(--ok);color:#fff}
.type-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
@media (max-width:760px){.type-cards{grid-template-columns:minmax(0,1fr)}}
.type-card{display:flex;flex-direction:column;gap:8px;align-items:flex-start;text-align:left;padding:20px;border:2px solid var(--line);border-radius:20px;background:var(--surface);box-shadow:0 4px 0 var(--line);cursor:pointer;min-height:200px}
.type-card b{font-family:var(--f-display);font-size:22px}
.type-card[aria-pressed="true"]{border-color:var(--brand);box-shadow:0 4px 0 var(--brand)}
.type-icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center}
.type-icon svg{width:26px;height:26px}
.type-card.writing .type-icon{background:var(--brand-soft);color:var(--brand)}
.type-card.listening .type-icon{background:var(--indigo-soft);color:var(--indigo)}
.type-card.speaking .type-icon{background:var(--saffron-soft);color:var(--saffron-ink)}
.set-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:10px}
.set-card{position:relative;display:flex;flex-direction:column;gap:3px;align-items:flex-start;text-align:left;padding:14px;border:2px solid var(--line);border-radius:16px;background:var(--surface);box-shadow:0 3px 0 var(--line);cursor:pointer}
.set-ar{font-size:26px;line-height:1.5;color:var(--brand);direction:rtl;max-width:calc(100% - 36px);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.set-check{position:absolute;top:10px;right:10px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--surface-2);color:var(--muted);border:1px solid var(--line)}
.set-check svg{width:16px;height:16px;stroke-width:2.5}
.set-card[aria-pressed="true"]{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 3px 0 var(--brand)}
.set-card[aria-pressed="true"] .set-check{background:var(--brand);color:#fff;border-color:var(--brand)}
.disclose{display:flex;align-items:center;justify-content:space-between;gap:12px;width:100%;background:none;border:0;padding:0;text-align:left;cursor:pointer;min-height:44px}
.disclose>span{display:flex;flex-direction:column;gap:2px}
.disclose b{font-size:17px}
.disclose>svg{width:22px;height:22px;color:var(--muted);flex:none;transition:transform .2s}
.disclose[aria-expanded="true"]>svg{transform:rotate(45deg)}
.own-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr auto;gap:10px;align-items:end}
@media (max-width:760px){.own-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.own-grid{grid-template-columns:minmax(0,1fr)}}
.tray{position:sticky;bottom:12px;z-index:10}
.tray-in{display:flex;align-items:center;gap:14px;background:var(--surface);border:2px solid var(--line);border-radius:18px;padding:10px 12px 10px 14px;box-shadow:0 10px 30px rgba(0,0,0,.2)}
.tray-items{flex:1;min-width:0;display:flex;gap:8px;overflow-x:auto;align-items:center;padding-block:2px;scrollbar-width:thin}
.pick-chip{display:inline-flex;align-items:center;gap:6px;flex:none;border:1px solid var(--line);background:var(--surface-2);border-radius:999px;padding:0 10px 0 14px;cursor:pointer;min-height:40px}
.pick-chip .ar{font-size:22px;line-height:1.3}
.pick-chip svg{width:14px;height:14px;color:var(--muted)}
.tray-go{display:flex;align-items:center;gap:12px;flex:none}
.tray-count{white-space:nowrap;color:var(--muted)}
.tray-count b{font-family:var(--f-display);font-size:22px;color:var(--ink)}
@media (max-width:640px){
  .tray{bottom:0;margin-inline:-16px}
  .tray-in{border-radius:0;border-width:2px 0 0;box-shadow:none;padding:10px 16px calc(10px + env(safe-area-inset-bottom,0px))}
}
.mode-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
@media (max-width:640px){.mode-cards{grid-template-columns:minmax(0,1fr)}}
.mode-card{display:flex;flex-direction:column;gap:6px;align-items:flex-start;text-align:left;padding:12px;border:2px solid var(--line);border-radius:16px;background:var(--surface);cursor:pointer;box-shadow:0 3px 0 var(--line)}
.mode-card[aria-pressed="true"]{border-color:var(--indigo);background:var(--indigo-soft);box-shadow:0 3px 0 var(--indigo)}
.mode-art{width:100%;height:76px;border-radius:10px;background:#FFFFFF;border:1px solid #D5E1DD;display:flex;align-items:center;justify-content:center;gap:12px;color:#3E4FC7}
.mode-art .ar{font-size:42px;line-height:1;color:#13222A}
.mode-art .ar.ghost{color:#C5D3CF}
.mode-art .ar.small-model{font-size:24px;color:#0E7C66}
.mode-art svg{width:24px;height:24px}
.mini-opts{display:flex;flex-direction:column;gap:5px}
.mini-opts i{display:block;width:48px;height:13px;border-radius:4px;background:#E0E4FB}
.mini-opts i.on{background:#3E4FC7}
.mini-tiles{display:flex;gap:4px;direction:rtl}
.mini-tiles i{font-style:normal;font-family:var(--f-ar);font-size:20px;width:30px;height:34px;border-radius:6px;border:1px solid #D5E1DD;display:grid;place-items:center;color:#13222A}
.summary-card{position:sticky;top:76px}
@media (max-width:900px){.summary-card{position:static}}
.sum-items{display:flex;flex-wrap:wrap;gap:6px;direction:rtl;justify-content:flex-end}
.sum-items span{font-size:22px;line-height:1.4;padding:0 10px;border-radius:10px;background:var(--surface-2);border:1px solid var(--line)}
.sum-items .more{font-family:var(--f-body);font-size:14px;display:grid;place-items:center;color:var(--muted)}
.type-card,.set-card,.mode-card,.pick-chip{transition:transform .14s var(--ease-out),box-shadow .14s var(--ease-out),background-color .2s,border-color .2s}
.type-card:active,.set-card:active,.mode-card:active,.pick-chip:active{transform:scale(.97)}
.set-card[aria-pressed="true"],.mode-card[aria-pressed="true"]{animation:sel .22s var(--ease-out)}

/* ---------- builder ---------- */
.preset-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(110px,1fr));gap:8px;max-height:360px;overflow-y:auto;padding:2px}
.preset{border:2px solid var(--line);border-radius:12px;background:var(--surface);padding:8px 6px;cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:2px;min-height:76px;box-shadow:0 2px 0 var(--line)}
.preset .ar{font-size:26px;line-height:1.3}
.preset.is-letter .ar{font-size:32px}
.preset small{font-size:12px;color:var(--muted);text-align:center;line-height:1.2}
.preset[aria-pressed="true"]{border-color:var(--brand);background:var(--brand-soft)}
.preset[aria-pressed="true"] small{color:var(--brand)}
.file-lbl{display:inline-flex;align-items:center;gap:6px;cursor:pointer;font-size:14px;font-weight:600;color:var(--indigo);white-space:nowrap;position:relative}
.file-lbl svg{width:16px;height:16px}
.file-lbl input{position:absolute;width:1px;height:1px;opacity:0}
.kbd{display:flex;flex-direction:column;gap:6px;direction:rtl;user-select:none;-webkit-user-select:none}
.kbd-row{display:flex;gap:5px;justify-content:center}
.key{flex:1;max-width:52px;min-width:0;height:48px;border-radius:10px;border:1px solid var(--line);background:var(--surface);box-shadow:0 3px 0 var(--line);font-size:22px;cursor:pointer;padding:0}
.key:active{transform:translateY(3px);box-shadow:none}
.key.wide{max-width:none;flex:4;font-size:14px;font-weight:600;font-family:var(--f-body)}
.key.mid{max-width:none;flex:1.5;font-size:16px}

/* ---------- lesson player ---------- */
.player{position:fixed;inset:0;z-index:50;background:var(--bg);display:flex;flex-direction:column;padding-top:env(safe-area-inset-top,0px)}
.p-top{max-width:900px;width:100%;margin:0 auto;padding:14px 16px;display:flex;align-items:center;gap:14px}
.progress{flex:1;height:18px;border-radius:99px;background:var(--line);overflow:hidden}
.progress i{display:block;height:100%;width:0;background:var(--ok);border-radius:99px;transition:width .35s ease;box-shadow:inset 0 -5px 0 rgba(0,0,0,.08)}
.combo{min-width:40px;text-align:right}
.p-body{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch}
.p-inner{max-width:820px;margin:0 auto;padding-inline:16px;padding-block:12px 28px;display:flex;flex-direction:column;gap:18px}
.p-kind{font-family:var(--f-display);font-size:28px;font-weight:700;line-height:1.2}
.prompt-ar{font-family:var(--f-ar);font-size:60px;line-height:1.5;text-align:center;direction:rtl;font-weight:600}
.prompt-en{font-size:24px;font-weight:600}
.translit{display:inline-block;padding:3px 10px;border-radius:8px;background:var(--surface-2);border:1px solid var(--line);font-style:italic;color:var(--muted)}
.speaker{width:100px;height:100px;border-radius:26px;border:0;background:var(--indigo);color:#fff;box-shadow:0 6px 0 var(--indigo-deep);display:grid;place-items:center;cursor:pointer}
.speaker svg{width:48px;height:48px}
.speaker.slow{width:68px;height:68px;border-radius:18px;background:var(--surface);color:var(--indigo);border:2px solid var(--line);box-shadow:0 4px 0 var(--line)}
.speaker.slow svg{width:30px;height:30px}
.speaker:active{transform:translateY(5px);box-shadow:none}
.options{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:460px){.options{grid-template-columns:1fr}}
.opt{border:2px solid var(--line);border-radius:16px;padding:16px;min-height:64px;background:var(--surface);box-shadow:0 4px 0 var(--line);cursor:pointer;font-weight:600;font-size:18px;text-align:center}
.opt .ar{font-size:40px;line-height:1.2}
.opt[aria-pressed="true"]{border-color:var(--indigo);background:var(--indigo-soft);color:var(--indigo)}
.opt.right{border-color:var(--ok);background:var(--ok-soft);color:var(--ok)}
.opt.wrong{border-color:var(--rose);background:var(--rose-soft);color:var(--rose)}
.learn-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:28px;display:flex;flex-direction:column;gap:12px}
.intro-letters{display:flex;gap:18px;font-size:64px;color:var(--brand);font-weight:700;justify-content:flex-start}
.learn-letter{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.big-ar{font-family:var(--f-ar);font-size:130px;line-height:1.1;color:var(--brand);min-width:150px;text-align:center;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:4px 18px 18px}
.forms{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
@media (max-width:520px){.forms{grid-template-columns:repeat(2,minmax(0,1fr))}}
.form{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:8px;display:flex;flex-direction:column;align-items:center}
.form .ar{font-size:46px;line-height:1.4}
.tipchip{display:flex;gap:10px;align-items:flex-start;padding:10px 14px;border-radius:14px;background:var(--saffron-soft);font-size:15px}
.tipchip svg{width:20px;height:20px;flex:none;color:var(--saffron-ink);margin-top:2px}
.spell-out{display:flex;flex-direction:column;align-items:center;gap:6px}
.letter-chip{display:inline-flex;flex-direction:column;align-items:center;padding:6px 10px;border-radius:12px;background:var(--surface);border:1px solid var(--line);font-size:32px;line-height:1.3}
.letter-chip small{font-family:var(--f-body);font-size:11px;color:var(--muted);direction:ltr}
.build-answer{min-height:88px;border-bottom:3px solid var(--line);font-size:56px;text-align:center;line-height:1.5;display:flex;align-items:center;justify-content:center}
.tiles{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;direction:rtl}
.tile{min-width:64px;height:68px;padding:0 14px;border-radius:14px;border:2px solid var(--line);background:var(--surface);box-shadow:0 4px 0 var(--line);font-size:34px;cursor:pointer}
.tile:active{transform:translateY(4px);box-shadow:none}
.tile:disabled{opacity:.25;box-shadow:none;cursor:default}
.model{display:flex;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:0 12px}
.model .ar{font-size:64px;color:var(--brand);line-height:1.5}
.pad{position:relative;width:100%;aspect-ratio:2/1;border-radius:18px;border:2px solid var(--line);background:#FFFFFF;overflow:hidden;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.pad canvas{position:absolute;inset:0;width:100%;height:100%;touch-action:none}
.pad.locked{border-color:var(--indigo)}
.score-card{display:flex;gap:18px;align-items:center;flex-wrap:wrap;border-radius:18px;padding:16px;border:2px solid var(--line);background:var(--surface)}
.score-card.great{border-color:var(--ok)} .score-card.good{border-color:color-mix(in srgb,var(--ok) 60%,var(--line))}
.score-card.ok{border-color:var(--saffron)} .score-card.low{border-color:var(--rose)}
.score-num{display:flex;align-items:baseline;gap:2px;font-family:var(--f-display);line-height:1}
.score-num b{font-size:64px;font-variant-numeric:tabular-nums}
.great .score-num b,.good .score-num b{color:var(--ok)} .ok .score-num b{color:var(--saffron-ink)} .low .score-num b{color:var(--rose)}
.score-num span{font-size:20px;color:var(--muted)}
.score-parts{display:flex;gap:8px;flex-wrap:wrap}
.part{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);font-size:13px;color:var(--muted)}
.part b{color:var(--ink);font-variant-numeric:tabular-nums}
.part svg{width:14px;height:14px}
.part.yes{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 40%,var(--line))}
.part.no{color:var(--rose);border-color:color-mix(in srgb,var(--rose) 40%,var(--line))}
.score-pic{margin:0;display:flex;flex-direction:column;gap:4px;width:240px;max-width:100%}
.score-pic img{border-radius:10px;border:1px solid var(--line);background:#fff}
.score-pic figcaption{display:flex;align-items:center;gap:6px;color:var(--muted)}
.k{display:inline-block;width:12px;height:12px;border-radius:3px}
.k.ok{background:#168054} .k.off{background:#D64258} .k.miss{background:#F7C46C}
.reps{display:flex;gap:8px}
.reps i{width:18px;height:18px;border-radius:50%;border:2px solid var(--saffron);display:block}
.reps i.on{background:var(--saffron)}
.notice{padding:10px 12px;border-radius:12px;background:var(--indigo-soft);font-size:15px}
.p-foot{border-top:2px solid var(--line);background:var(--surface);padding-bottom:env(safe-area-inset-bottom,0px)}
.p-foot.good{background:var(--ok-soft);border-color:transparent}
.p-foot.bad{background:var(--rose-soft);border-color:transparent}
.p-foot-in{max-width:900px;margin:0 auto;padding:16px;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.verdict{flex:1;min-width:220px;display:flex;flex-direction:column;gap:4px}
.verdict h3{font-size:21px}
.good .verdict h3{color:var(--ok)} .bad .verdict h3{color:var(--rose)}
.done-hero{text-align:center;display:flex;flex-direction:column;gap:10px;align-items:center;padding-top:16px}
.done-hero .stars i{width:40px;height:40px}
.done-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;width:100%}
.done-stats .card{text-align:center;padding:12px}
.done-stats b{display:block;font-family:var(--f-display);font-size:30px;font-variant-numeric:tabular-nums}
.done-stats small{font-size:15px;color:var(--muted)}
/* ---------- motion ---------- */
:root{--spring:cubic-bezier(.34,1.56,.64,1);--ease-out:cubic-bezier(.22,1,.36,1)}
@keyframes pop{0%{transform:scale(.94);opacity:.6}60%{transform:scale(1.02)}100%{transform:scale(1);opacity:1}}
@keyframes rise{from{transform:translateY(12px);opacity:0}to{transform:none;opacity:1}}
@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes sel{0%{transform:scale(1)}40%{transform:scale(.95)}100%{transform:scale(1)}}
@keyframes bounce{0%{transform:scale(1)}35%{transform:scale(1.07)}65%{transform:scale(.98)}100%{transform:scale(1)}}
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-7px)}40%{transform:translateX(6px)}60%{transform:translateX(-4px)}80%{transform:translateX(2px)}}
@keyframes ring{0%{transform:scale(1);opacity:.55}100%{transform:scale(1.45);opacity:0}}
@keyframes star{0%{transform:scale(0) rotate(-30deg);opacity:0}70%{transform:scale(1.25) rotate(8deg);opacity:1}100%{transform:scale(1) rotate(0)}}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.25}}
@keyframes toast-in{from{transform:translateY(-16px) scale(.97);opacity:0}to{transform:none;opacity:1}}
.pop{animation:pop .35s var(--ease-out)}
.bump{animation:bounce .4s var(--spring)}

/* buttons: lift on hover (mouse / trackpad), press down on tap */
.btn,.icon-btn,.opt,.tile,.preset,.seg button,.tab,.alpha-key,.role-card,.class-card,.node,.key,.speaker{transition:transform .14s var(--ease-out),box-shadow .14s var(--ease-out),background-color .2s,border-color .2s,color .2s,opacity .2s,filter .2s}
@media (hover:hover) and (pointer:fine){
  .btn:not([disabled]):hover{transform:translateY(-1px);filter:brightness(1.05)}
  .btn.ghost:not([disabled]):hover{border-color:color-mix(in srgb,var(--brand) 45%,var(--line))}
  .opt:not(:disabled):hover,.tile:not(:disabled):hover,.preset:hover,.alpha-key:hover{transform:translateY(-2px)}
  .class-card:hover,.role-card:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--line),var(--shadow)}
  .node:not([disabled]):hover{transform:translateY(-2px) scale(1.03)}
  .icon-btn:hover{color:var(--ink);border-color:var(--muted)}
}
.btn:not([disabled]):active,.icon-btn:active{transform:translateY(4px) scale(.98)}
.opt:not(:disabled):active,.preset:active,.alpha-key:active,.seg button:active,.class-card:active,.role-card:active{transform:scale(.97)}
.opt[aria-pressed="true"],.preset[aria-pressed="true"],.seg button[aria-pressed="true"],.alpha-key[aria-pressed="true"]{animation:sel .22s var(--ease-out)}
.opt.right{animation:bounce .45s var(--spring)}
.opt.wrong{animation:shake .4s ease}
.tile:disabled{transform:scale(.88)}

/* lesson flow */
#pBody>*{animation:rise .32s var(--ease-out) both}
#pBody>*:nth-child(2){animation-delay:.04s} #pBody>*:nth-child(3){animation-delay:.08s} #pBody>*:nth-child(4){animation-delay:.12s}
#pBody>*:nth-child(5){animation-delay:.16s} #pBody>*:nth-child(n+6){animation-delay:.2s}
.p-foot{transition:background-color .25s}
.p-foot.good .p-foot-in,.p-foot.bad .p-foot-in{animation:rise .28s var(--ease-out)}
.v-badge{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;flex:none;animation:pop .4s var(--spring) .05s both}
.v-badge svg{width:28px;height:28px;stroke-width:3}
.good .v-badge{background:var(--ok);color:#fff} .bad .v-badge{background:var(--rose);color:#fff}
.combo .chip{animation:bounce .4s var(--spring)}
.speaker,.btn{position:relative}
.speaker.playing::after,.btn.playing::after{content:"";position:absolute;inset:-4px;border-radius:inherit;border:3px solid var(--indigo);animation:ring 1s ease-out infinite;pointer-events:none}
[data-p="recstop"]::before{content:"";width:10px;height:10px;border-radius:50%;background:#fff;animation:blink 1s infinite}
.score-pic img{animation:fade .5s ease .15s both}
.saving{animation:blink 1.2s infinite}
.okmsg{display:inline-flex;align-items:center;gap:6px}
.okmsg svg{width:16px;height:16px}
.done-hero .stars i.on{animation:star .5s var(--spring) both}
.done-hero .stars i:nth-child(1){animation-delay:.25s} .done-hero .stars i:nth-child(2){animation-delay:.45s} .done-hero .stars i:nth-child(3){animation-delay:.65s}
.big-ar{animation:pop .45s var(--spring)}
.confetti{position:fixed;inset:0;width:100%;height:100%;pointer-events:none;z-index:200}

/* pages: content rises in when a screen opens (not on live updates) */
main.wrap>*{animation:rise .38s var(--ease-out) both}
main.wrap>*:nth-child(2){animation-delay:.05s} main.wrap>*:nth-child(3){animation-delay:.1s} main.wrap>*:nth-child(n+4){animation-delay:.15s}
.list>.li,tbody>tr{animation:fade .3s ease both}
.node.next{position:relative}
.node.next::after{content:"";position:absolute;inset:0;border-radius:50%;border:4px solid var(--indigo);animation:ring 1.6s ease-out infinite;pointer-events:none}
.meter i,.bar i{transition:width .6s var(--ease-out)}

/* toasts and status */
.toasts{position:fixed;left:50%;top:calc(14px + env(safe-area-inset-top,0px));transform:translateX(-50%);z-index:300;display:flex;flex-direction:column;gap:8px;align-items:center;width:min(92vw,480px);pointer-events:none}
.toast{background:var(--ink);color:var(--bg);padding:12px 18px;border-radius:14px;font-weight:600;font-size:15px;box-shadow:0 10px 30px rgba(0,0,0,.25);animation:toast-in .3s var(--spring);transition:opacity .3s,transform .3s;text-align:center}
.toast.bad{background:var(--rose);color:#fff}
.toast.out{opacity:0;transform:translateY(-8px)}
.offline-bar{background:var(--indigo-soft);color:var(--ink);font-size:14px;padding:8px 16px;text-align:center;display:flex;gap:8px;justify-content:center;align-items:center;animation:fade .3s}
.offline-bar svg{width:16px;height:16px;color:var(--indigo)}

@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}