/* EFE TOEIC · design system
   Style: achromatic ledger (taste-skill app screens). The chrome is ink on a blue-grey answer-sheet ground;
   the one data hue (#1d5fbf) marks the main data element of a screen; green and red only say right and wrong.
   Two faces with one job each: Be Vietnam Pro for the app, Source Serif 4 for every English line being studied.
   Grid: centred 1100px column, 12px gap, 24px gutters (16px on phones). Radius 8 cards, 6 controls. */
:root{
  --ground:#f2f4f7; --surface:#ffffff; --raised:#f7f8fa; --active:#e6e9ee;
  --border:#e1e5ea; --rule:#eceff3; --control:#cdd3db;
  --text:#14171c; --muted:#596170; --faint:#646d7a;
  --ink:#141414; --on-ink:#ffffff;
  --hue:#1d5fbf; --hue-soft:#e7eef9;
  --success:#23733a; --success-soft:#e3f6e8; --success-line:#9fd3ae;
  --danger:#c4242a; --danger-soft:#ffedea; --danger-line:#f1b4ae;
  --warn:#92400e; --warn-soft:#fffbeb; --warn-line:#fde68a;
  /* aliases kept for modules that set inline colours */
  --bg:var(--ground); --surface-2:var(--raised); --surface-3:var(--active);
  --primary:var(--ink); --primary-2:var(--ink); --primary-soft:var(--active); --on-primary:var(--on-ink);
  --accent:var(--hue); --accent-soft:var(--hue-soft); --info:var(--muted); --info-soft:var(--active);
  --hero:var(--surface);
  --shadow:none; --shadow-lg:0 12px 32px rgba(15,20,30,.16);
  --radius:8px; --radius-sm:6px;
  --font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --serif:'Source Serif 4','Source Serif Pro',Georgia,'Times New Roman',serif;
  --gap:12px; --pad:24px; --col:1100px; --top:52px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ground:#101010; --surface:#181818; --raised:#1f1f1f; --active:#2a2a2a;
    --border:#2a2a2a; --rule:#222222; --control:#454545;
    --text:#f2f2f2; --muted:#b4b4b4; --faint:#9a9a9a;
    --ink:#f2f2f2; --on-ink:#111111;
    --hue:#7aa7f0; --hue-soft:#1a2433;
    --success:#5cc982; --success-soft:#16261b; --success-line:#2d5a3b;
    --danger:#f0727b; --danger-soft:#2c1a1d; --danger-line:#5c2a30;
    --warn:#f2c46b; --warn-soft:#2a2414; --warn-line:#5a4a1e;
    --shadow-lg:0 12px 32px rgba(0,0,0,.5);
    color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --ground:#101010; --surface:#181818; --raised:#1f1f1f; --active:#2a2a2a;
  --border:#2a2a2a; --rule:#222222; --control:#454545;
  --text:#f2f2f2; --muted:#b4b4b4; --faint:#9a9a9a;
  --ink:#f2f2f2; --on-ink:#111111;
  --hue:#7aa7f0; --hue-soft:#1a2433;
  --success:#5cc982; --success-soft:#16261b; --success-line:#2d5a3b;
  --danger:#f0727b; --danger-soft:#2c1a1d; --danger-line:#5c2a30;
  --warn:#f2c46b; --warn-soft:#2a2414; --warn-line:#5a4a1e;
  --shadow-lg:0 12px 32px rgba(0,0,0,.5);
  color-scheme:dark;
}

/* ---------- base ---------- */
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--ground);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;-webkit-tap-highlight-color:transparent}
a{color:inherit;text-decoration:none}
p a,.note a,.small a:not(.btn),li a{text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
button{font-family:inherit;font-size:inherit;color:inherit}
input,textarea,select{font-family:inherit;font-size:16px;color:var(--text)}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}
svg.i{width:20px;height:20px;flex:none;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;vertical-align:middle}
svg.i.sm{width:16px;height:16px} svg.i.lg{width:24px;height:24px}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:600}
h1{font-size:24px;letter-spacing:-.01em}
h2{font-size:16px}
h3{font-size:15px}
p{margin:0 0 .6em}
ol,ul{margin:0}
.muted{color:var(--muted)} .faint{color:var(--faint)} .small{font-size:13px} .tiny{font-size:12px}
.bold{font-weight:600} .center{text-align:center} .text-nowrap{white-space:nowrap}
.num,.time{font-variant-numeric:tabular-nums}
.hidden{display:none!important}
.ell{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.danger-t{color:var(--danger)!important}
.kbd{display:inline-block;padding:0 6px;border:1px solid var(--control);border-bottom-width:2px;border-radius:4px;font-size:12px;line-height:18px;background:var(--surface)}
/* English being studied: the material face */
.en,.mat,.serif{font-family:var(--serif);font-size:1.07em;line-height:1.55;letter-spacing:0}

/* ---------- shell ---------- */
.app{min-height:100vh;display:flex;flex-direction:column}
.topbar{position:sticky;top:0;z-index:40;background:var(--ground);border-bottom:1px solid var(--border)}
.topbar-in{max-width:calc(var(--col) + 2*var(--pad));margin:0 auto;padding:0 var(--pad);height:var(--top);display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;gap:8px;color:var(--text);flex:none;font-weight:700;font-size:15px;letter-spacing:-.01em}
.brand-mark{width:22px;height:22px;flex:none;display:block}
.brand small{font-weight:500;color:var(--muted);font-size:15px}
.nav{display:flex;align-items:center;gap:2px;flex:1;min-width:0}
.nav a{display:flex;align-items:center;gap:6px;height:32px;padding:0 10px;border-radius:6px;color:var(--muted);font-size:14px;font-weight:500;white-space:nowrap}
.nav a:hover{color:var(--text)}
.nav a.active{background:var(--active);color:var(--text)}
.nav a .badge{margin-left:2px}
.topbar-title{display:none;font-weight:600;font-size:16px;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar-right{display:flex;align-items:center;gap:6px;margin-left:auto;position:relative;flex:none}
.hubbar{max-width:calc(var(--col) + 2*var(--pad));margin:0 auto;padding:0 var(--pad)}
.hub-tabs{display:flex;gap:20px;overflow-x:auto;scrollbar-width:none;border-top:1px solid var(--rule)}
.hub-tabs::-webkit-scrollbar{display:none}
.hub-tabs a{position:relative;display:flex;align-items:center;gap:6px;height:42px;font-size:14px;font-weight:500;color:var(--muted);white-space:nowrap;flex:none}
.hub-tabs a:hover{color:var(--text)}
.hub-tabs a.sel{color:var(--text)}
.hub-tabs a.sel::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--ink)}
.sessbar{border-top:1px solid var(--rule);background:var(--surface)}
.sess-in{max-width:calc(var(--col) + 2*var(--pad));margin:0 auto;padding:8px var(--pad);display:flex;align-items:center;gap:12px}
.sess-txt{flex:1;min-width:0;font-size:14px}
.sess-txt b{font-weight:600}
.sess-steps{display:flex;gap:4px;margin-bottom:4px}
.sess-steps i{display:block;width:22px;height:4px;border-radius:2px;background:var(--active)}
.sess-steps i.ok{background:var(--hue)}
.sess-steps i.cur{background:var(--ink)}
.sess-btns{display:flex;gap:6px;align-items:center;flex:none}
.main{width:100%;max-width:calc(var(--col) + 2*var(--pad));margin:0 auto;padding:24px var(--pad) 72px;flex:1;outline:none}
.bottom-nav{display:none}
.only-mobile{display:none!important}
.only-wide{display:inline}

@media (max-width:860px){
  :root{--pad:16px}
  body{font-size:16px}
  .nav,.brand small{display:none}
  .brand b{display:none}
  .topbar-title{display:block}
  .only-mobile{display:inline-flex!important}
  .only-wide{display:none}
  .main{padding:16px var(--pad) calc(84px + env(safe-area-inset-bottom))}
  .bottom-nav{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:45;background:var(--surface);border-top:1px solid var(--border);padding:4px 10px env(safe-area-inset-bottom)}
  .bottom-nav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;min-height:56px;font-size:11.5px;font-weight:500;color:var(--faint);position:relative;border-radius:8px}
  .bottom-nav a.active{color:var(--text)}
  .bottom-nav a.active svg.i{stroke-width:2.1}
  .bottom-nav .badge{position:absolute;top:4px;left:calc(50% + 6px)}
  body.in-run .bottom-nav{display:none}
  body.in-run .main{padding-bottom:calc(96px + env(safe-area-inset-bottom))}
  .sess-in{padding:8px var(--pad);flex-wrap:wrap}
  h1{font-size:22px}
}

/* ---------- page parts ---------- */
.page-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:0 0 20px;flex-wrap:wrap}
.page-head > div{min-width:0}
.page-head p{margin:4px 0 0;color:var(--muted);font-size:14px;max-width:72ch}
.page-head .row{flex:none}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;min-width:0}
.card.flat{background:var(--raised)}
.card + .card{margin-top:var(--gap)}
.grid > .card + .card,.grid > .card{margin-top:0}
.card h2{margin-bottom:4px}
.card-head{display:flex;align-items:baseline;justify-content:space-between;gap:4px 12px;margin-bottom:12px;flex-wrap:wrap}
.card-head h2,.card-head h3{margin:0}
.card-head .small{color:var(--muted)}
.sec-title{font-size:16px;font-weight:600;margin:28px 0 10px}
.grid{display:grid;gap:var(--gap)}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.auto{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.c2{grid-column:span 2} .c3{grid-column:span 3} .c4{grid-column:span 4}
@media (max-width:980px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:minmax(0,1fr)}.c2,.c3,.c4{grid-column:auto}}
.row{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.row.between{justify-content:space-between}
.row.nowrap{flex-wrap:nowrap}
.stack{display:flex;flex-direction:column;gap:8px}
.spacer{flex:1}
.mt{margin-top:16px}.mt-s{margin-top:8px}.mt-l{margin-top:24px}.mb{margin-bottom:16px}.mb-s{margin-bottom:8px}
.divider{height:1px;background:var(--rule);margin:16px 0}
.focus-col{max-width:760px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:40px;padding:0 14px;border-radius:var(--radius-sm);border:1px solid var(--control);background:var(--surface);color:var(--text);font-weight:500;font-size:14px;cursor:pointer;white-space:nowrap;text-decoration:none!important;transition:background .12s,border-color .12s;user-select:none}
.btn:hover{background:var(--raised);border-color:var(--faint)}
.btn:active{transform:translateY(1px)}
.btn.primary,.btn.accent,.btn.success{background:var(--ink);border-color:var(--ink);color:var(--on-ink)}
.btn.primary:hover,.btn.accent:hover,.btn.success:hover{opacity:.88}
.btn.soft{background:var(--active);border-color:var(--active)}
.btn.soft:hover{border-color:var(--control)}
.btn.ghost{background:transparent;border-color:transparent}
.btn.ghost:hover{background:var(--active)}
.btn.danger{color:var(--danger);border-color:var(--danger-line)}
.btn.danger:hover{background:var(--danger-soft)}
.btn.sm{height:32px;padding:0 10px;font-size:13px}
.btn.lg{height:48px;padding:0 20px;font-size:15px}
.btn.block{display:flex;width:100%}
.btn[disabled],.btn.disabled{opacity:.45;pointer-events:none}
.icon-btn{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:var(--radius-sm);border:1px solid transparent;background:transparent;color:var(--muted);cursor:pointer;flex:none}
.icon-btn:hover{background:var(--active);color:var(--text)}
.icon-btn.round{border-radius:50%;border-color:var(--control);background:var(--surface);color:var(--text)}
.icon-btn.big{width:56px;height:56px;border-radius:50%;background:var(--ink);color:var(--on-ink);border-color:var(--ink)}
.icon-btn.big svg{width:24px;height:24px}
.icon-btn.big:hover{opacity:.88;background:var(--ink);color:var(--on-ink)}
.icon-btn.ghost{background:transparent}
.icon-btn.on{background:var(--active);color:var(--text)}
.icon-btn.sm{width:30px;height:30px}
.speak{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;border:1px solid var(--control);background:var(--surface);color:var(--text);cursor:pointer;flex:none;padding:0;vertical-align:middle}
.speak:hover{background:var(--active)}
.speak svg{width:16px;height:16px}
.speak.sm{width:26px;height:26px}.speak.sm svg{width:14px;height:14px}
.linkish{background:none;border:none;padding:0;color:var(--text);text-decoration:underline;text-underline-offset:2px;cursor:pointer;font:inherit}
.linkish:hover{color:var(--muted)}

/* ---------- chips, pills, badges ---------- */
.chip{display:inline-flex;align-items:center;gap:4px;height:24px;padding:0 8px;border-radius:4px;background:var(--active);color:var(--text);font-size:12px;font-weight:500;white-space:nowrap;flex:none;border:0}
.chip.success{background:var(--success-soft);color:var(--success)}
.chip.danger{background:var(--danger-soft);color:var(--danger)}
.chip.warn{background:var(--warn-soft);color:var(--warn)}
.chip.primary,.chip.accent,.chip.info{background:var(--active);color:var(--text)}
.chip.hue{background:var(--hue-soft);color:var(--hue)}
button.chip{height:32px;padding:0 12px;border:1px solid var(--control);background:var(--surface);cursor:pointer;font-size:13px;border-radius:999px}
button.chip:hover{background:var(--raised)}
button.chip.sel,.chip.sel{background:var(--ink);border-color:var(--ink);color:var(--on-ink)}
.chip-streak{gap:5px;height:30px;padding:0 10px;border-radius:999px;background:transparent;border:1px solid var(--border);font-size:13px;color:var(--text)}
.chip-streak.cold{color:var(--muted)}
.chip-streak svg{color:var(--text)}
.chip-freeze{display:none}
.badge{display:inline-grid;place-items:center;min-width:18px;height:18px;padding:0 5px;border-radius:9px;background:var(--danger);color:#fff;font-size:11px;font-weight:600;line-height:1;font-variant-numeric:tabular-nums}
.badge.muted{background:var(--active);color:var(--muted)}
.lv{display:inline-flex;align-items:center;height:20px;padding:0 6px;border-radius:4px;font-size:11px;font-weight:600;background:var(--active);color:var(--muted)}

/* ---------- segmented tabs ---------- */
.tabs{display:inline-flex;gap:2px;padding:3px;border-radius:8px;background:var(--active);overflow-x:auto;max-width:100%;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{height:32px;padding:0 12px;border:1px solid transparent;border-radius:6px;background:transparent;color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;flex:none}
.tabs button:hover{color:var(--text)}
.tabs button.sel{background:var(--surface);border-color:var(--border);color:var(--text)}

/* ---------- forms ---------- */
.input,.select,.textarea{width:100%;height:40px;padding:0 12px;border-radius:var(--radius-sm);border:1px solid var(--control);background:var(--surface);color:var(--text);font-size:15px;outline:none;transition:border-color .12s}
.input:focus,.select:focus,.textarea:focus{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)} /* taste-skill-ignore: focus / selected outline or a floating panel */
.textarea{height:auto;min-height:96px;padding:10px 12px;line-height:1.5;resize:vertical}
.select{padding-right:32px;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23596170' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:14px;font-weight:500}
.field .small{color:var(--muted)}
.search{position:relative;flex:1;min-width:200px}
.search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--faint)}
.search .input{padding-left:38px}
.switch{position:relative;display:inline-block;width:34px;height:20px;flex:none;cursor:pointer}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch span{position:absolute;inset:0;border-radius:10px;background:var(--control);transition:background .15s}
.switch span:before{content:"";position:absolute;left:2px;top:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .15s}
.switch input:checked+span{background:var(--ink)}
:root[data-theme="dark"] .switch input:checked+span:before{background:#111}
.switch input:checked+span:before{transform:translateX(14px)}
.switch input:focus-visible+span{outline:2px solid var(--ink);outline-offset:2px}
input[type=range]{accent-color:var(--ink);width:100%}
input[type=checkbox],input[type=radio]{accent-color:var(--ink)}

/* ---------- progress, notes, empty ---------- */
.progress{height:6px;border-radius:3px;background:var(--active);overflow:hidden}
.progress>i{display:block;height:100%;background:var(--hue);border-radius:inherit;transition:width .3s}
.progress.accent>i{background:var(--hue)}
.progress.ink>i{background:var(--ink)}
.progress.thin{height:4px}
.prog-line{height:3px;background:var(--active);border-radius:2px;overflow:hidden}
.prog-line i{display:block;height:100%;background:var(--hue)}
.note{padding:12px 14px;border-radius:var(--radius);background:var(--raised);border:1px solid var(--border);font-size:14px;line-height:1.55}
.note.warn{background:var(--warn-soft);border-color:var(--warn-line);color:var(--warn)}
.note.success{background:var(--success-soft);border-color:var(--success-line);color:var(--success)}
.note.accent,.note.info{background:var(--raised)}
.note b{font-weight:600}
.empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;text-align:center;padding:32px 16px;color:var(--muted);font-size:14px;border:1px dashed var(--control);border-radius:var(--radius)}
.empty svg{width:24px;height:24px;color:var(--faint)}
.empty b{color:var(--text);font-weight:600}
.banner{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);margin-bottom:var(--gap);font-size:14px}
.banner.warn{background:var(--warn-soft);border-color:var(--warn-line)}
.banner.danger{background:var(--danger-soft);border-color:var(--danger-line)}
.banner .b-body{flex:1;min-width:0}
.banner .b-emo{display:none}
.spin{width:18px;height:18px;border-radius:50%;border:2px solid var(--active);border-top-color:var(--ink);animation:spin .8s linear infinite;display:inline-block;vertical-align:middle}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- generic lists ---------- */
.wlist{border-top:1px solid var(--rule)}
.witem{display:flex;align-items:center;gap:12px;padding:10px 4px;border-bottom:1px solid var(--rule);min-height:52px;cursor:pointer}
.witem:hover{background:var(--raised)}
.witem .w{font-family:var(--serif);font-size:17px;font-weight:600}
.witem .ipa{color:var(--muted);font-size:13px}
.witem .vi{color:var(--muted);font-size:14px}
.st-dot{width:8px;height:8px;border-radius:50%;background:var(--control);flex:none}
.st-dot.learning{background:var(--hue)}
.set-card{cursor:pointer;transition:border-color .12s}
.set-card:hover{border-color:var(--control)}
.set-ic,.stat-ic{display:grid;place-items:center;width:24px;height:24px;background:transparent;color:var(--muted);flex:none;font-weight:600;font-size:13px}
.stat-ic.c1,.stat-ic.c2,.stat-ic.c3,.stat-ic.c4{background:transparent;color:var(--muted)}
.stat{display:flex;flex-direction:column;gap:2px}
.stat b{font-size:24px;font-weight:500;font-variant-numeric:tabular-nums;line-height:1.2}
.stat span{font-size:13px;color:var(--muted)}
.task{display:flex;align-items:center;gap:12px;padding:12px 4px;border-bottom:1px solid var(--rule);color:var(--text)}
.task:last-child{border-bottom:0}
.task-ic{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;border:1px solid var(--control);flex:none;color:var(--muted)}
.task-body{flex:1;min-width:0}
.task-t{font-weight:500}
.task-s{font-size:13px;color:var(--muted)}
.task.done .task-ic{background:var(--hue);border-color:var(--hue);color:#fff}
.task.done .task-t{color:var(--muted)}
.hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;color:var(--text)}
.hero h1{font-size:22px}
.hero .muted{color:var(--muted)}
.hero .btn.white{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:16px;align-items:center}
@media (max-width:600px){.hero-grid{grid-template-columns:minmax(0,1fr)}}
.ring{position:relative;width:72px;height:72px;display:grid;place-items:center;flex:none;text-align:center}
.ring svg{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.ring svg circle{fill:none;stroke-width:3}
.ring .tr{stroke:var(--active)}.ring .fg{stroke:var(--hue)}
.ring>div{position:relative;display:grid;place-items:center;line-height:1.1}
.ring b{font-size:15px;font-weight:600;font-variant-numeric:tabular-nums}
.ring small{font-size:10px;color:var(--muted)}
details.adv,details.vfold{border-top:1px solid var(--rule);padding-top:10px;margin-top:12px}
details > summary{cursor:pointer;font-weight:500;font-size:14px;list-style:none;display:flex;align-items:center;gap:6px}
details > summary::-webkit-details-marker{display:none}
details > summary::before{content:"";width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(-45deg);transition:transform .15s;margin:0 4px 0 2px}
details[open] > summary::before{transform:rotate(45deg)}

/* ---------- learning blocks reused by grammar / dialogue / dictation ---------- */
.q-opts{display:grid;gap:8px}
.q-opt{display:flex;align-items:center;gap:12px;width:100%;min-height:48px;padding:8px 12px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);cursor:pointer;text-align:left;font-size:15px;color:var(--text)}
.q-opt:hover{border-color:var(--control);background:var(--raised)}
.q-opt .k{display:grid;place-items:center;width:26px;height:26px;border-radius:50%;border:1.5px solid var(--faint);font-size:12px;font-weight:600;flex:none;color:var(--muted)}
.q-opt.correct{border-color:var(--success-line);background:var(--success-soft)}
.q-opt.correct .k{background:var(--success);border-color:var(--success);color:#fff}
.q-opt.wrong{border-color:var(--danger-line);background:var(--danger-soft)}
.q-opt.wrong .k{background:var(--danger);border-color:var(--danger);color:#fff}
.q-opt[disabled]{cursor:default}
.q-prompt{font-size:18px;line-height:1.5}
.q-sub{color:var(--muted);font-size:14px}
.feedback{margin-top:12px;padding:12px 14px;border-radius:var(--radius);border:1px solid var(--border);border-left-width:3px;font-size:14px}
.feedback.ok{border-left-color:var(--success);background:var(--success-soft)}
.feedback.no{border-left-color:var(--danger);background:var(--danger-soft)}
.feedback .exp{color:var(--text);margin-top:4px}
mark.hl{background:var(--hue-soft);color:inherit;padding:0 2px;border-radius:2px}
.formula{font-family:var(--serif);font-size:16px;padding:10px 12px;border-radius:var(--radius-sm);background:var(--raised);border:1px solid var(--border)}
.form-row{display:grid;grid-template-columns:140px minmax(0,1fr);gap:12px;padding:8px 0;border-bottom:1px solid var(--rule)}
.form-row:last-child{border-bottom:0}
@media (max-width:600px){.form-row{grid-template-columns:minmax(0,1fr);gap:2px}}
.ex-line{padding:8px 0;border-bottom:1px solid var(--rule);display:flex;gap:8px;align-items:flex-start}
.ex-line:last-child{border-bottom:0}
.ex-line .en{font-family:var(--serif);font-size:16px}
.ex-line .vi{color:var(--muted);font-size:14px}
.mistake{padding:10px 0;border-bottom:1px solid var(--rule)}
.mistake:last-child{border-bottom:0}
.mistake .wrong{color:var(--danger);text-decoration:line-through}
.mistake .right{color:var(--success);font-weight:500}
.mistake .why{color:var(--muted);font-size:14px}
.exercise{padding:14px 0;border-bottom:1px solid var(--rule)}
.exercise:last-child{border-bottom:0}
.exercise .qn{font-size:12px;color:var(--muted);font-weight:500}
.exercise .qt{font-family:var(--serif);font-size:17px;margin:4px 0 8px}
.ex-opts{display:flex;flex-wrap:wrap;gap:6px}
.ex-opts button{min-height:36px;padding:4px 12px;border-radius:999px;border:1px solid var(--control);background:var(--surface);cursor:pointer;font-family:var(--serif);font-size:15px}
.ex-opts button:hover{background:var(--raised)}
.ex-opts button.correct{background:var(--success-soft);border-color:var(--success);color:var(--success)}
.ex-opts button.wrong{background:var(--danger-soft);border-color:var(--danger);color:var(--danger)}
.chunks{display:flex;flex-wrap:wrap;gap:6px;min-height:44px;padding:6px;border-radius:var(--radius-sm);border:1px dashed var(--control)}
.chunks.answer{background:var(--raised)}
.chunks button{min-height:34px;padding:2px 10px;border-radius:6px;border:1px solid var(--control);background:var(--surface);cursor:pointer;font-family:var(--serif);font-size:15px}
.overview-table{width:100%;border-collapse:collapse;font-size:14px}
.overview-table th,.overview-table td{padding:8px 10px;border-bottom:1px solid var(--rule);text-align:left;vertical-align:top}
.overview-table th{font-weight:500;color:var(--muted);font-size:12px}
.table-wrap{overflow-x:auto}
.phrase{padding:10px 0;border-bottom:1px solid var(--rule)}
.phrase:last-child{border-bottom:0}
.phrase .en{font-family:var(--serif);font-size:16px}
.phrase .vi{color:var(--muted);font-size:14px}
.model{padding:12px 14px;border-radius:var(--radius);background:var(--raised);border:1px solid var(--border);font-family:var(--serif);font-size:16px;line-height:1.6}
.editor-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.wc{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}.wc.ok{color:var(--success)}

/* dialogues */
.dlg{display:flex;flex-direction:column;gap:10px}
.bubble-row{display:flex;gap:10px;align-items:flex-end}
.bubble-row.me{flex-direction:row-reverse}
.avatar{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-weight:600;font-size:12px;flex:none;background:var(--active);color:var(--muted)}
.bubble-row.me .avatar{background:var(--hue-soft);color:var(--hue)}
.bubble{max-width:min(600px,84%);padding:10px 14px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);cursor:pointer}
.bubble-row.me .bubble{background:var(--raised)}
.bubble.playing{border-color:var(--ink);box-shadow:0 0 0 1px var(--ink)} /* taste-skill-ignore: focus / selected outline or a floating panel */
.bubble .en{font-family:var(--serif);font-size:16.5px}
.bubble .vi{color:var(--muted);font-size:14px;margin-top:2px}
.bubble .who{font-size:12px;font-weight:500;color:var(--faint);margin-bottom:2px}
.bubble.hidden-en .en{filter:blur(6px);user-select:none}
.hide-vi .bubble .vi{display:none}
.rp-panel{position:sticky;bottom:12px;z-index:5}
.rp-panel.card{box-shadow:var(--shadow-lg)} /* taste-skill-ignore: focus / selected outline or a floating panel */
.score-pill{display:inline-flex;align-items:center;gap:6px;font-weight:600;padding:2px 10px;border-radius:999px;background:var(--active);font-variant-numeric:tabular-nums}
.word-ok{color:var(--success);font-weight:500}.word-miss{color:var(--danger);text-decoration:underline wavy}
.rec-dot{width:10px;height:10px;border-radius:50%;background:var(--danger);animation:pulse 1s infinite;flex:none}
@keyframes pulse{50%{opacity:.3}}
.shadow-box{text-align:center;padding:12px;border-radius:var(--radius);background:var(--raised);border:1px solid var(--border);font-weight:500}
.ctrl{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
.speakbox{margin-top:10px}

/* dictation */
.dsent{font-family:var(--serif);font-size:19px;line-height:2.4;word-spacing:1px}
.gap{font:inherit;font-family:var(--serif);font-size:17px;padding:2px 6px;border:none;border-bottom:2px solid var(--ink);background:var(--raised);border-radius:4px 4px 0 0;color:var(--text);text-align:center;min-width:3ch;max-width:100%;outline:none}
.gap:focus{background:var(--surface);box-shadow:0 0 0 1px var(--ink)} /* taste-skill-ignore: focus / selected outline or a floating panel */
.gap.ok{border-color:var(--success);background:var(--success-soft);color:var(--success);font-weight:600}
.gap.bad{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}
.gap:disabled{opacity:1;-webkit-text-fill-color:currentColor}
.textarea.dinput{min-height:68px;font-family:var(--serif);font-size:18px;line-height:1.5}
.dres{margin-top:12px;padding:12px 14px;border-radius:var(--radius);background:var(--raised);border:1px solid var(--border);font-family:var(--serif);font-size:18px;line-height:2.1;word-spacing:2px}
.dw{display:inline-block;padding:0 3px;border-radius:4px;line-height:1.5}
.dw.ok{color:var(--success)}
.dw.bad{background:var(--danger-soft);color:var(--danger);font-weight:600}
.dw.bad s{color:var(--muted);font-weight:400;margin-right:5px;font-size:.85em}
.dw.miss{background:var(--warn-soft);color:var(--warn);font-weight:600;text-decoration:underline dotted}
.dw.extra{color:var(--muted);text-decoration:line-through}
.tbar{height:6px;border-radius:3px;background:var(--active);overflow:hidden}
.tbar i{display:block;height:100%;width:100%;background:var(--ink);border-radius:inherit}
.dbars{display:flex;align-items:flex-end;gap:4px;height:70px;padding:6px 0;border-bottom:1px solid var(--control)}
.dbars i{flex:1;background:var(--control);border-radius:2px 2px 0 0;min-height:3px}
.dbars i.q{background:var(--hue)}
.dict-box{padding:14px;border-radius:var(--radius);background:var(--raised);border:1px solid var(--border)}
.dict-box .textarea{background:var(--surface)}
.dline{display:flex;gap:10px;align-items:flex-start;padding:8px 0;border-top:1px solid var(--rule);font-size:15px;overflow-wrap:anywhere}
.dline button{flex:none;min-width:30px;height:26px;border-radius:6px;border:1px solid var(--control);background:var(--surface);cursor:pointer;font-weight:600;font-size:12px;color:var(--muted)}
.dline.cur button{background:var(--ink);color:var(--on-ink);border-color:var(--ink)}
.timeline svg{max-width:100%}
@media (max-width:600px){.dsent{font-size:17px;line-height:2.3}.gap{font-size:16px}.dres{font-size:16px}}

/* ---------- modal, toast ---------- */
.modal-back{position:fixed;inset:0;background:rgba(12,14,18,.45);z-index:100;display:grid;place-items:center;padding:16px;animation:fade .15s}
.modal{width:100%;max-width:520px;max-height:calc(100vh - 32px);overflow-y:auto;background:var(--surface);border-radius:10px;border:1px solid var(--border);box-shadow:var(--shadow-lg);padding:20px;animation:pop .15s}
.modal.wide{max-width:760px}
.modal-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.modal-head h2{font-size:18px;display:flex;align-items:center;gap:8px}
@keyframes fade{from{opacity:0}}
@keyframes pop{from{opacity:0;transform:translateY(6px)}}
.toast-wrap{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center;width:max-content;max-width:calc(100% - 32px);pointer-events:none}
@media (max-width:860px){.toast-wrap{bottom:calc(76px + env(safe-area-inset-bottom))}}
.toast{padding:10px 16px;border-radius:8px;background:var(--ink);color:var(--on-ink);font-size:14px;box-shadow:var(--shadow-lg);animation:pop .2s;display:flex;align-items:center;gap:8px}
.toast.err{background:var(--danger);color:#fff}
.xp-float,.confetti{display:none}

/* ---------- account, auth, sync ---------- */
.avatar-sm{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--active);color:var(--text);font-size:12px;font-weight:600;flex:none}
.avatar-sm.lg{width:40px;height:40px;font-size:14px}
.user-btn{border:0;background:transparent;padding:0;cursor:pointer;border-radius:50%;display:grid;place-items:center;position:relative}
.user-btn:focus-visible{outline:2px solid var(--ink)}
.user-menu{position:absolute;right:0;top:44px;width:280px;background:var(--surface);border:1px solid var(--border);border-radius:10px;box-shadow:var(--shadow-lg);padding:6px;z-index:60}
.user-menu a,.user-menu button{display:flex;align-items:center;gap:10px;width:100%;padding:9px 10px;border-radius:6px;border:0;background:transparent;font-size:14px;cursor:pointer;text-align:left;color:var(--text)}
.user-menu a:hover,.user-menu button:hover{background:var(--active)}
.um-head{display:flex;align-items:center;gap:10px;padding:8px 10px 10px;border-bottom:1px solid var(--rule);margin-bottom:4px}
.um-sec{font-size:12px;color:var(--muted);padding:8px 10px 2px}
.sync-dot{width:8px;height:8px;border-radius:50%;background:var(--control);flex:none;display:inline-block}
.sync-dot.ok{background:var(--success)}
.sync-dot.busy{background:var(--hue);animation:pulse 1s infinite}
.sync-dot.err{background:var(--danger)}
.cloud-pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
#userBtn .sync-dot{position:absolute;right:-1px;bottom:-1px;border:2px solid var(--ground)}
body.logged-out .app,body.logged-out .bottom-nav{display:none}
#auth:empty{display:none}
.auth{min-height:100vh;display:grid;place-items:center;padding:24px 16px;background:var(--ground)}
.auth-card{width:100%;max-width:420px;min-width:0;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px}
.auth-card .btn{white-space:normal;text-align:center}
.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.auth-brand h1{font-size:20px}
.auth-brand p{margin:2px 0 0;color:var(--muted);font-size:14px}
.brand-logo{display:grid;place-items:center;width:28px;height:28px;flex:none}
.brand-logo.lg{width:44px;height:44px}
.brand-logo svg{width:100%;height:100%}
.auth-sec{font-size:13px;font-weight:500;color:var(--muted);margin-bottom:8px}
.auth-users{display:flex;flex-direction:column;gap:8px}
.auth-user{display:flex;align-items:center;gap:12px;width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface);cursor:pointer;text-align:left}
.auth-user:hover{border-color:var(--control);background:var(--raised)}
.au-txt{display:flex;flex-direction:column;min-width:0;flex:1}.au-txt b{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.au-txt span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.au-meta{color:var(--muted);white-space:nowrap}
.auth-or{display:flex;align-items:center;gap:10px;color:var(--faint);font-size:13px;margin:18px 0 12px}
.auth-or::before,.auth-or::after{content:"";flex:1;height:1px;background:var(--rule)}
.auth-legacy{display:flex;gap:10px;align-items:flex-start;margin-top:14px;padding:12px;border-radius:8px;background:var(--raised);border:1px solid var(--border);cursor:pointer;font-size:14px}
.auth-legacy input{width:18px;height:18px;margin-top:2px;flex:none}
.auth-err{color:var(--danger);min-height:18px;margin-top:8px}
.auth-ok{color:var(--success);margin-top:8px}.auth-ok:empty{display:none}
.auth-file:empty{display:none}
.auth-tabs{display:flex;gap:2px;padding:3px;border-radius:8px;background:var(--active);margin-bottom:16px}
.auth-tabs button{flex:1;height:34px;border:1px solid transparent;border-radius:6px;background:transparent;cursor:pointer;font-weight:500;color:var(--muted)}
.auth-tabs button.sel{background:var(--surface);border-color:var(--border);color:var(--text)}
.pw-wrap{position:relative}
.pw-wrap .input{padding-right:44px}
.pw-eye{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:36px;height:32px;border:0;background:transparent;color:var(--muted);cursor:pointer;display:grid;place-items:center;border-radius:6px}
.pw-eye:hover{background:var(--active)}
.qr{flex:none;width:132px;height:132px;padding:6px;background:#fff;border-radius:8px;border:1px solid var(--border)}
.qr svg{width:100%;height:100%;display:block}

/* speech recogniser */
.asr-pill{position:fixed;left:50%;top:calc(10px + env(safe-area-inset-top));transform:translateX(-50%);z-index:110;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:4px 10px;max-width:calc(100% - 32px);padding:8px 16px;border-radius:999px;background:var(--surface);color:var(--text);border:1px solid var(--border);box-shadow:var(--shadow-lg);font-size:14px;pointer-events:none}
.asr-pill b{font-weight:600}
.asr-pill .asr-sub{font-size:12px;color:var(--muted)}
.asr-lv{display:inline-flex;align-items:flex-end;gap:3px;height:16px}
.asr-lv i{display:block;width:4px;border-radius:2px;background:var(--active)}
.asr-lv i:nth-child(1){height:5px}.asr-lv i:nth-child(2){height:8px}.asr-lv i:nth-child(3){height:11px}.asr-lv i:nth-child(4){height:14px}.asr-lv i:nth-child(5){height:16px}
.asr-lv i.on{background:var(--success)}
body:has(.modal-back) .asr-pill{display:none}
.mic-meter{display:flex;gap:4px;align-items:center;height:22px}
.mic-meter i{flex:1;height:100%;border-radius:3px;background:var(--active)}
.mic-meter i.on{background:var(--success)}
.mic-meter i:nth-child(n+10).on{background:var(--warn)}

/* ---------- settings: one section per row, label column beside the panel ---------- */
.set-list{display:flex;flex-direction:column}
.set-sec{display:grid;grid-template-columns:260px minmax(0,1fr);gap:0 32px;padding:28px 0;border-top:1px solid var(--border);background:transparent;border-radius:0;border-left:0;border-right:0;border-bottom:0;margin:0!important}
.set-sec:first-child{border-top:0;padding-top:4px}
.set-sec > h2{grid-column:1;grid-row:1 / span 40;font-size:16px;display:flex;gap:8px;align-items:flex-start;padding-top:2px}
.set-sec > h2 svg{color:var(--muted);margin-top:1px}
.set-sec > :not(h2){grid-column:2;min-width:0}
.set-sec > :not(h2) + :not(h2){margin-top:10px}
.set-sec > h2 + *{margin-top:0!important}
.set-sec .set-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
@media (max-width:860px){.set-sec{grid-template-columns:minmax(0,1fr);padding:20px 0}.set-sec > h2{grid-row:auto}.set-sec > :not(h2){grid-column:1}}

/* =================================================================
   EFE TOEIC screens
   ================================================================= */
/* brand mark: an answer-sheet bubble */
.mark-dot{fill:var(--hue)}
.mark-ring{fill:none;stroke:var(--text);stroke-width:2}

/* Today */
.today-head h1{font-size:24px}
.today-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:var(--gap);align-items:start}
.today-grid > .card + .card,.today-grid .stack > .card + .card{margin-top:0}
@media (max-width:980px){.today-grid{grid-template-columns:minmax(0,1fr)}}
.finding{font-size:15px;color:var(--text);margin-top:6px;max-width:68ch}
.finding .muted{color:var(--muted)}
.steps{display:flex;flex-direction:column}
.step{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:12px;align-items:center;padding:10px 0;border-bottom:1px solid var(--rule);color:var(--text)}
.step:last-child{border-bottom:0}
.step-n{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--control);font-size:13px;font-weight:600;color:var(--muted);font-variant-numeric:tabular-nums}
.step.done .step-n{background:var(--hue);border-color:var(--hue);color:#fff}
.step.cur .step-n{border-color:var(--ink);color:var(--text)}
.step-t{font-weight:500}
.step-s{font-size:13px;color:var(--muted)}
.step-m{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.step.done .step-t{color:var(--muted)}
.sess-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:16px;flex-wrap:wrap}
.week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}
.week div{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:12px;color:var(--muted)}
.week i{display:block;width:100%;max-width:30px;height:30px;border-radius:50%;border:1.5px solid var(--control)}
.week .on i{background:var(--ink);border-color:var(--ink)}
.week .today i{border-color:var(--ink);border-width:2px}
.week .today{color:var(--text);font-weight:600}

/* score ruler 10–990 */
.ruler{position:relative;padding:26px 0 4px}
.ruler-track{position:relative;height:28px;border-bottom:1px solid var(--text)}
.ruler-track i{position:absolute;bottom:0;width:1px;background:var(--control);height:8px}
.ruler-track i.maj{height:14px;background:var(--faint)}
.ruler-lab{position:relative;height:18px;font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}
.ruler-lab span{position:absolute;transform:translateX(-50%);top:4px}
.ruler-lab span:first-child{transform:none}
.ruler-lab span:last-child{transform:translateX(-100%)}
.ruler-target{position:absolute;top:0;bottom:0;border-left:1px dashed var(--text)}
.ruler-target b{position:absolute;top:-24px;left:6px;font-size:12px;font-weight:600;white-space:nowrap}
.ruler-me{position:absolute;bottom:-6px;width:12px;height:12px;margin-left:-6px;border-radius:50%;background:var(--hue);outline:3px solid var(--surface)}
.ruler-me b{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);font-size:20px;font-weight:700;color:var(--hue);font-variant-numeric:tabular-nums;white-space:nowrap}
.score-big{font-size:32px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.1}

/* part readiness: bar at the accuracy, tick at the level a 700 needs */
.bullets{display:flex;flex-direction:column}
.bl{display:grid;grid-template-columns:minmax(0,170px) minmax(0,1fr) 52px;gap:12px;align-items:center;padding:7px 0;border-bottom:1px solid var(--rule);font-size:14px;color:var(--text)}
.bl:last-child{border-bottom:0}
.bl-t{min-width:0}
.bl-t small{color:var(--muted);font-size:13px;margin-left:6px}
.bl-bar{position:relative;height:10px;background:var(--active);border-radius:2px}
.bl-bar i{position:absolute;left:0;top:0;bottom:0;background:var(--hue);border-radius:2px 0 0 2px}
.bl-bar b{position:absolute;top:-4px;bottom:-4px;width:2px;margin-left:-1px;background:var(--text)}
.bl-v{text-align:right;font-variant-numeric:tabular-nums;color:var(--text)}
.bl-v.none{color:var(--faint)}
.bl.low .bl-v{color:var(--danger)}
.bl-key{display:flex;gap:16px;font-size:12px;color:var(--muted);margin-top:8px;flex-wrap:wrap}
.bl-key span{display:inline-flex;align-items:center;gap:6px}
.bl-key i{display:inline-block;width:14px;height:8px;background:var(--hue);border-radius:1px}
.bl-key i.tick{width:2px;height:12px;background:var(--text)}

/* part list on "Luyện đề" */
.parts{display:flex;flex-direction:column}
.part{display:grid;grid-template-columns:44px minmax(0,1fr) 120px auto;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--rule);color:var(--text)}
.part:last-child{border-bottom:0}
.part-no{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1.5px solid var(--text);font-weight:600;font-size:15px;font-variant-numeric:tabular-nums}
.part.off{color:var(--faint)}
.part.off .part-no{border-color:var(--control);color:var(--faint)}
.part-t{display:block;font-weight:600}
.part-s{display:block;font-size:13px;color:var(--muted)}
.part-acc{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums}
.part-acc .progress{margin-top:4px}
@media (max-width:640px){.part{grid-template-columns:40px minmax(0,1fr) auto}.part-acc{grid-column:2;grid-row:2}}
.lst{display:flex;flex-direction:column}
.lst-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:12px;align-items:center;min-height:52px;padding:8px 0;border-bottom:1px solid var(--rule);color:var(--text)}
.lst-row:last-child{border-bottom:0}
.lst-row .t{font-weight:500}
.lst-row .s{font-size:13px;color:var(--muted)}
.lst-row .v{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;text-align:right;white-space:nowrap}
a.lst-row:hover .t{text-decoration:underline;text-underline-offset:2px}

/* a practice question */
.run{max-width:760px;margin:0 auto}
.run-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.run-top .progress{flex:1}
.run-top .num{font-size:13px;color:var(--muted);white-space:nowrap}
.qmeta{font-size:13px;color:var(--muted);margin-bottom:10px;display:flex;gap:14px;flex-wrap:wrap;align-items:baseline}
.qmeta h1{font-size:13px;font-weight:500;color:var(--muted);letter-spacing:0}
.qtext{font-family:var(--serif);font-size:19px;line-height:1.6;margin:0 0 18px}
.qtext .blank{display:inline-block;min-width:96px;border-bottom:1.5px solid var(--text);margin:0 4px;transform:translateY(-4px)}
.qtext .blank.filled{min-width:0;border:0;transform:none;padding:0 2px;border-radius:3px}
.qtext .blank.filled.ok{background:var(--success-soft);color:var(--success)}
.qtext .blank.filled.no{background:var(--danger-soft);color:var(--danger)}
.photo{display:block;width:100%;max-height:420px;object-fit:contain;border-radius:6px;background:var(--raised);border:1px solid var(--border);margin-bottom:16px}
.photo.ph{height:240px;display:grid;place-items:center;color:var(--faint);font-size:14px}
/* the answer sheet */
.sheet{display:flex;flex-direction:column;gap:8px}
.bub{display:flex;align-items:center;gap:14px;width:100%;min-height:52px;padding:8px 14px 8px 10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer;text-align:left;color:var(--text);font-size:16px}
.bub:hover{border-color:var(--control)}
.bub .o{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;border:1.5px solid var(--text);font-size:13px;font-weight:600;flex:none;font-family:var(--font);transition:background .1s,color .1s}
.bub .tx{font-family:var(--serif);font-size:17px;line-height:1.45;flex:1;min-width:0}
.bub .tx.hide{color:var(--faint);font-family:var(--font);font-size:14px}
.bub.sel .o{background:var(--ink);border-color:var(--ink);color:var(--on-ink)}
.bub.sel{border-color:var(--ink)}
.bub.right{border-color:var(--success-line);background:var(--success-soft)}
.bub.right .o{background:var(--success);border-color:var(--success);color:#fff}
.bub.wrong{border-color:var(--danger-line);background:var(--danger-soft)}
.bub.wrong .o{background:var(--danger);border-color:var(--danger);color:#fff}
.bub[disabled]{cursor:default}
.bub .pl{flex:none}
.sheet.row-mode{flex-direction:row;gap:10px}
.sheet.row-mode .bub{width:auto;flex:1;justify-content:center;padding:8px}
.run-bar{position:sticky;bottom:0;background:var(--ground);padding:12px 0 calc(12px + env(safe-area-inset-bottom));margin-top:16px;display:flex;gap:8px;align-items:center;border-top:1px solid var(--border);z-index:5}
.run-bar .spacer{flex:1}
@media (max-width:860px){.run-bar{position:fixed;left:0;right:0;bottom:0;padding:10px var(--pad) calc(10px + env(safe-area-inset-bottom));background:var(--surface)}}
/* audio player for one question */
.aplayer{display:flex;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);margin-bottom:16px}
.aplayer .pbar{flex:1;height:4px;background:var(--active);border-radius:2px;position:relative;overflow:hidden}
.aplayer .pbar i{position:absolute;left:0;top:0;bottom:0;background:var(--ink)}
.aplayer .time{font-size:13px;color:var(--muted);min-width:76px;text-align:right}
.aplayer .play{width:44px;height:44px;border-radius:50%;border:0;background:var(--ink);color:var(--on-ink);display:grid;place-items:center;cursor:pointer;flex:none}
.aplayer .play svg{width:20px;height:20px}
/* review after answering */
.review{margin-top:18px;display:flex;flex-direction:column;gap:var(--gap)}
.rv{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.rv h3{font-size:14px;font-weight:600;margin-bottom:6px}
.rv p{margin:0;font-size:15px}
.rv .vi{color:var(--muted)}
.script-line{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:10px;align-items:start;padding:10px 0;border-bottom:1px solid var(--rule)}
.script-line:last-child{border-bottom:0}
.script-line .k{font-weight:600;font-size:13px;color:var(--muted);padding-top:3px}
.script-line .en{font-size:16.5px}
.script-line .vi{color:var(--muted);font-size:14px;margin-top:2px}
.script-line.ans .k{color:var(--success)}
.script-line .acts{display:flex;gap:4px}
.vocab-mini{display:flex;flex-direction:column}
.vm{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center;padding:8px 0;border-bottom:1px solid var(--rule)}
.vm:last-child{border-bottom:0}
.vm .w{font-family:var(--serif);font-size:16.5px;font-weight:600}
.vm .w small{font-family:var(--font);font-weight:400;color:var(--muted);font-size:12px;margin-left:6px}
.vm .vi{color:var(--muted);font-size:14px}
.save-w{height:30px;padding:0 10px;border-radius:999px;border:1px solid var(--control);background:var(--surface);cursor:pointer;font-size:12.5px;display:inline-flex;align-items:center;gap:4px;color:var(--text);white-space:nowrap}
.save-w.on{background:var(--ink);border-color:var(--ink);color:var(--on-ink)}
/* result */
.result-head{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.result-head .score-big{color:var(--text)}
.dots{display:flex;flex-wrap:wrap;gap:6px}
.dots a,.dots span{display:grid;place-items:center;width:32px;height:32px;border-radius:50%;font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;border:1.5px solid var(--success);color:var(--success)}
.dots .no{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}

/* vocabulary session */
.vcard{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:24px 20px;text-align:center}
.vcard .vw{font-family:var(--serif);font-size:34px;font-weight:600;line-height:1.2;letter-spacing:-.01em;overflow-wrap:anywhere}
.vcard .vipa{color:var(--muted);font-size:14px;margin-top:4px}
.vcard .vpos{display:inline-block;margin-top:8px}
.vcard .vvi{font-size:18px;margin-top:14px}
.vcard .vex{font-family:var(--serif);font-size:16.5px;line-height:1.55;margin-top:14px;text-align:left;padding-top:14px;border-top:1px solid var(--rule)}
.vcard .vex .vi{font-family:var(--font);font-size:14px;color:var(--muted);display:block;margin-top:2px}
.vcard .vfam{font-size:13px;color:var(--muted);margin-top:10px;text-align:left}
.vtask{font-size:13px;font-weight:500;color:var(--muted);margin:0 0 10px;text-align:center;letter-spacing:0}
.vprompt{font-size:20px;text-align:center;margin:6px 0 18px}
.vprompt.en{font-family:var(--serif);font-size:22px}
.vcloze{font-family:var(--serif);font-size:19px;line-height:1.6;text-align:left;margin:0 0 18px}
.vtype{display:flex;gap:8px;max-width:420px;margin:0 auto}
.vtype .input{height:48px;font-family:var(--serif);font-size:20px;text-align:center}
.vtype .input.ok{border-color:var(--success);background:var(--success-soft)}
.vtype .input.no{border-color:var(--danger);background:var(--danger-soft)}
.vhint{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;letter-spacing:.12em}
.vgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
@media (max-width:520px){.vgrid{grid-template-columns:minmax(0,1fr)}}
.vopt{min-height:56px;padding:8px 12px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:15px;text-align:left;color:var(--text);display:flex;align-items:center;gap:10px}
.vopt.en{font-family:var(--serif);font-size:17px}
.vopt:hover{border-color:var(--control)}
.vopt.right{border-color:var(--success-line);background:var(--success-soft);color:var(--success)}
.vopt.wrong{border-color:var(--danger-line);background:var(--danger-soft);color:var(--danger)}
.vopt .o{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;border:1.5px solid var(--faint);font-size:11px;font-weight:600;flex:none;color:var(--muted);font-family:var(--font)}
.vfb{margin-top:14px;padding:12px 14px;border-radius:var(--radius);border:1px solid var(--border);border-left-width:3px;text-align:left;font-size:14px}
.vfb.ok{border-left-color:var(--success)}
.vfb.no{border-left-color:var(--danger)}
.vfb .w{font-family:var(--serif);font-size:18px;font-weight:600}
/* memory stages */
.stages{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border:1px solid var(--border);border-radius:var(--radius);background:var(--surface)}
.stages > div{padding:14px 16px;border-left:1px solid var(--rule);min-width:0}
.stages > div:first-child{border-left:0}
.stages span{display:block;font-size:13px;color:var(--muted)}
.stages b{display:block;font-size:24px;font-weight:500;font-variant-numeric:tabular-nums;line-height:1.3}
.stages small{display:block;font-size:12px;color:var(--muted)}
@media (max-width:640px){.stages{grid-template-columns:repeat(2,minmax(0,1fr))}.stages > div{border-left:0;border-top:1px solid var(--rule)}.stages > div:nth-child(-n+2){border-top:0}.stages > div:nth-child(even){border-left:1px solid var(--rule)}.stages > div:last-child{grid-column:1 / -1}}
.forecast{display:flex;align-items:flex-end;gap:4px;height:96px;border-bottom:1px solid var(--text);padding-top:16px}
.forecast div{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%;position:relative;min-width:0}
.forecast i{display:block;width:100%;max-width:28px;background:var(--control);min-height:1px}
.forecast div:first-child i{background:var(--hue)}
.forecast b{position:absolute;top:-16px;font-size:11px;font-weight:500;color:var(--muted);font-variant-numeric:tabular-nums}
.forecast-lab{display:flex;gap:4px;font-size:11px;color:var(--muted);margin-top:4px}
.forecast-lab span{flex:1;text-align:center;min-width:0}
.leech{font-size:13px;color:var(--danger)}

/* the "Powered by Netlify" badge sits above the bottom bar and the answer bar instead of on top of them */
@media (max-width:860px){#nl-badge-frame{bottom:calc(72px + env(safe-area-inset-bottom))!important}}
@media print{.topbar,.bottom-nav,.run-bar{display:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

.wk{margin-top:16px;padding-top:14px;border-top:1px solid var(--rule)}
.wk-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px;font-size:14px}
.wk-head b{font-weight:600}
.wk-head span{color:var(--muted);font-size:13px}
.split2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:24px;align-items:end}
@media (max-width:760px){.split2{grid-template-columns:minmax(0,1fr)}}
.src-line{display:block;font-size:12px;color:var(--faint);margin-top:4px}