/* Shared product language. All controls remain real, keyboard-accessible UI. */
.product-ui{--accent-soft:rgba(0,190,176,.1)}
.custom-icon{overflow:visible;stroke:currentColor!important;stroke-width:1.7}.iconbox,.di,.bt-ic,.ci{background:linear-gradient(145deg,rgba(0,190,176,.13),rgba(98,101,240,.10))!important;color:var(--aqua-400);border:1px solid rgba(0,190,176,.15);border-radius:15px!important}
.iconbtn{border-radius:14px;transition:background .2s,transform .2s}.iconbtn:hover{background:var(--surface-2);transform:translateY(-1px)}.iconbtn:active{transform:scale(.94)}
.tab .tic{transition:transform .25s,background .25s}.tab.on .tic{background:var(--accent-soft);border-radius:14px;transform:translateY(-3px)}.tab .ic{width:25px;height:25px}.tabbar{border-top:1px solid var(--stroke);backdrop-filter:blur(18px)}
.dircell{border-radius:20px!important;min-height:88px;transition:transform .22s,border-color .22s}.dircell:hover{transform:translateY(-2px);border-color:var(--aqua-400)}.dircell .di{width:50px!important;height:50px!important;display:grid;place-items:center;flex:0 0 50px}.dircell .di .ic{width:28px;height:28px}.dircell:nth-child(4n+2) .di{color:#8a9fff}.dircell:nth-child(4n+3) .di{color:#c193ec}.dircell:nth-child(4n+4) .di{color:#ddab53}.dircell a{color:inherit}
.appbar .chipstat{display:flex;gap:8px;align-items:center}.stat.fire .ic{color:#ecaa52;fill:rgba(236,170,82,.12)}.sday.on .ic{color:#ecaa52}.sday.today .sd-b{box-shadow:0 0 0 4px rgba(0,190,176,.08)}
.question-card{padding:17px 18px;margin:16px 0 18px;border:1px solid rgba(0,190,176,.28);border-inline-start:4px solid var(--aqua-400);border-radius:18px;background:linear-gradient(135deg,rgba(0,190,176,.09),rgba(75,116,230,.05))}.question-label{display:block;font-size:11px;font-weight:800;color:var(--text-3);margin-bottom:9px}.question-text{font-size:17px;font-weight:750;line-height:1.9;color:var(--text-1);margin:0;text-align:start;unicode-bidi:plaintext}.en,[lang=en],.optbtn[dir=ltr],.question-text[dir=ltr]{direction:ltr;text-align:left}.bidi-line{margin:0 0 9px;line-height:1.95;unicode-bidi:plaintext;overflow-wrap:anywhere}.bidi-line:last-child{margin-bottom:0}bdi[lang=en]{font-family:var(--f-en,sans-serif)}.optbtn{line-height:1.9;min-height:52px;transition:background .2s,border-color .2s,transform .2s}.optbtn.sel{box-shadow:0 0 0 3px rgba(41,121,255,.12)}
.steps5{gap:8px!important;align-items:center;min-height:22px}.steps5 .dot5{height:10px!important;flex:1;border-radius:8px!important;background:var(--surface-2);transition:background .4s,box-shadow .4s}.steps5 .dot5.done{background:linear-gradient(90deg,#00b9ac,#4ba8e8)!important}.steps5 .dot5.now{background:#818af0!important;box-shadow:0 0 0 4px #818af018;animation:step-glow 2.5s ease-in-out infinite}
.task-card{display:grid;grid-template-columns:42px minmax(0,1fr);gap:12px;padding:16px!important;cursor:default!important}.task-card .ci{width:42px;height:42px;display:grid;place-items:center}.task-card .cb>b{line-height:1.9;display:block}.task-card .task-actions{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:12px;border-top:1px solid var(--stroke)}.task-check{display:flex;gap:9px;align-items:center;font-size:12px;cursor:pointer}.task-check input{width:22px;height:22px;accent-color:#00bfae;margin:0}.task-open{display:inline-flex;gap:6px;align-items:center;min-height:40px;padding:6px 10px;border:1px solid var(--stroke);border-radius:12px;color:var(--text-1);font-size:12px;text-decoration:none}.task-card.done{border-color:rgba(0,190,176,.3)}
.sheet{padding:56px 20px 24px!important;border-radius:28px 28px 0 0!important;background:var(--bg-1,var(--surface));box-shadow:0 -20px 70px #0003;transition:transform .32s cubic-bezier(.2,.8,.2,1),opacity .25s}.sheet-close{top:10px!important;inset-inline-end:14px!important;border:1px solid var(--stroke);background:var(--surface-2)}.sheetgrab{position:absolute;top:14px;left:calc(50% - 20px);width:40px;height:4px;border-radius:8px;background:var(--text-3);opacity:.35}.sheet h3{display:flex;gap:8px;align-items:center;margin:8px 0 18px!important}.sheetmask{backdrop-filter:blur(5px)}.sheet .row[data-sid]{padding:16px;text-align:start;width:100%;color:var(--text-1);animation:panel-row-in .25s ease}.sheet .scenario-card{position:relative;text-align:start;padding:18px 14px;border-radius:20px;background:var(--surface);transition:transform .2s,border-color .2s}.scenario-card:hover{transform:translateY(-3px);border-color:var(--aqua-400)}.scenario-card .scenario-symbol{width:52px;height:52px;border-radius:17px;display:grid;place-items:center;color:var(--aqua-400);background:var(--accent-soft);margin-bottom:12px}.scenario-symbol .ic{width:30px;height:30px}.scenario-card small{display:block;margin-top:5px;color:var(--text-3);font-size:11px}.scenario-card .ic{flex-shrink:0}
.chat-page .chat-header{padding:16px!important;display:grid!important;grid-template-columns:40px minmax(0,1fr) auto;gap:12px!important;align-items:center;border-bottom:1px solid var(--stroke);background:linear-gradient(120deg,rgba(0,190,176,.07),transparent)}.chat-heading{min-width:0}.chat-heading b{font-size:15px}.chat-header .chat-tools{grid-column:1/-1;display:flex;gap:8px;padding-top:5px}.chat-tools button{display:flex;gap:7px;align-items:center;padding:7px 11px;min-height:40px;border:1px solid var(--stroke);border-radius:12px;background:var(--surface);color:var(--text-2);font-size:11px}.chat-tools .ic{width:18px;height:18px}.chat-page #chat-messages{padding-top:22px!important}.chat-page .bub-row{margin-bottom:20px;gap:9px}.chat-page .bub-av{width:30px;height:38px;flex:0 0 30px}.chat-page .bub-av .logomark{width:27px;height:36px}.chat-page .bub-msg{padding:14px 16px;line-height:1.95;border-radius:20px 20px 5px 20px;max-width:calc(100% - 40px);font-size:14px;box-shadow:0 4px 16px #00000008}.chat-page .me .bub-msg{border-radius:20px 20px 20px 5px;background:linear-gradient(125deg,rgba(41,121,255,.16),rgba(0,190,176,.12));border-color:rgba(41,121,255,.2)}
.chat-page .dockzone{padding:12px 14px calc(12px + env(safe-area-inset-bottom))!important;border-top:1px solid var(--stroke);background:var(--bg-1)!important}.chat-page .composer{padding:8px!important;gap:8px;border:1px solid var(--stroke);border-radius:23px;background:var(--surface);box-shadow:0 4px 24px #00000009}.chat-page #chat-input{border:0;background:transparent;font-size:15px!important;line-height:1.8;padding:10px 8px;flex:1;outline-offset:0}.chat-page .cbtn{width:44px;height:44px;min-width:44px;border-radius:15px;background:var(--accent-soft);color:var(--aqua-400)}.chat-page .cbtn.send{background:var(--g-brand);color:white}.composer-hint{font-size:10px;color:var(--text-3);text-align:center;margin:7px 0 0}.chat-page .withdock{scroll-padding-bottom:20px}
.chat-page .cbtn .ic{width:22px!important;height:22px!important;fill:none!important;stroke:currentColor!important;position:static!important;display:block;transform:none!important;padding:0!important;margin:0!important;background:none!important;border:0!important;border-radius:0!important;filter:none!important;animation:none!important;box-shadow:none!important}
.audio-player{position:fixed;z-index:85;bottom:calc(83px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);width:calc(100% - 24px);max-width:448px;padding:17px!important;border:1px solid rgba(0,190,176,.3);border-radius:25px!important;background:var(--bg-1,#10192b)!important;box-shadow:0 16px 60px #0004;animation:player-in .25s ease}.audio-head{display:flex;align-items:center;gap:10px}.audio-brand{display:grid;place-items:center;width:42px;height:42px;flex:0 0 42px;border-radius:15px;background:var(--accent-soft);color:var(--aqua-400)}.audio-brand .ic{width:25px;height:25px}.audio-heading{flex:1;min-width:0}.audio-heading b{display:block;font-size:12px}.audio-heading .audio-status{display:block;margin-top:4px;font-size:10px!important;line-height:1.7;color:var(--text-3)}.audio-close{width:34px;min-width:34px;min-height:34px;background:var(--surface-2)}.audio-player progress{width:100%;height:3px;accent-color:#00bfae}.audio-wave{display:flex;gap:4px;align-items:center;justify-content:center;height:52px;margin:6px 0;color:var(--aqua-400);opacity:.5}.audio-wave i{width:4px;height:var(--h);border-radius:8px;background:currentColor;transform:scaleY(.35);transition:transform .2s}.is-playing .audio-wave i{animation:audio-pulse .75s var(--d) ease-in-out infinite alternate}.is-playing .audio-wave{opacity:.9}.audio-transport{display:flex;gap:13px;align-items:center;direction:ltr}.audio-toggle{height:48px;width:48px;min-width:48px;border:0;border-radius:17px;color:#fff;background:linear-gradient(135deg,#04bdb2,#6472ef);display:grid;place-items:center;cursor:pointer}.audio-position{flex:1;min-width:0}.audio-seek{width:100%;height:18px;margin:0;accent-color:#00bfae;cursor:pointer}.audio-times{display:flex;justify-content:space-between;font-size:10px;color:var(--text-3);font-variant-numeric:tabular-nums}.audio-reset{color:var(--text-2)}.audio-actions{display:flex;gap:8px;margin-top:12px;justify-content:center;flex-wrap:wrap}.audio-actions .btn{width:auto;min-height:34px;font-size:11px;padding:6px 12px}.audio-player audio[hidden]{display:none!important}.ob-audio-slot .audio-player{box-shadow:none!important;background:transparent!important;padding:0!important}
.flashcard-stage{margin-top:18px;border:1px solid var(--stroke);border-radius:30px;background:radial-gradient(ellipse at top,rgba(0,190,176,.12),transparent 70%),var(--surface);min-height:340px;padding:24px;position:relative;display:flex;flex-direction:column;align-items:center;text-align:center;gap:18px;box-shadow:0 16px 40px #00000009}.flashcard-word{font-size:34px;font-weight:800;overflow-wrap:anywhere;line-height:1.4}.flashcard-pronunciation{color:var(--text-3);font-size:14px}.flashcard-sound{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:10px 17px;border:1px solid rgba(0,190,176,.3);border-radius:16px;background:var(--accent-soft);color:var(--text-1);font-size:12px}.flashcard-answer{width:100%;border-top:1px solid var(--stroke);padding-top:18px;animation:panel-row-in .3s ease}.flashcard-answer .meaning{font-size:24px;font-weight:800;margin-bottom:16px}.flashcard-example{padding:16px;border-radius:16px;background:var(--surface-2);text-align:start;line-height:1.9}.flashcard-reveal{margin-top:auto;min-height:46px}.flashcard-grades{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:18px}.flashcard-grades button{display:flex;gap:10px;align-items:center;justify-content:center;padding:16px 8px;border-radius:19px;border:1px solid var(--stroke);background:var(--surface);color:var(--text-1)}.flashcard-grades small{display:block;font-size:10px;color:var(--text-3);margin-top:4px}.flashcard-grades .fc-known{border-color:#00bfae66;background:#00bfae12}.flashcard-grades .fc-again{border-color:#e5868b55;background:#e5868b0d}.flashcard-grades .ic{width:26px;height:26px}.flashcard-header{display:flex;gap:12px;align-items:center;padding:20px}.flashcard-header>div{flex:1}
.live-hero{position:relative;overflow:hidden;text-align:center;border-radius:30px;padding:25px 20px;background:radial-gradient(ellipse at top,rgba(0,190,176,.13),transparent 70%),var(--surface);border:1px solid var(--stroke)}.live-kicker{font-size:11px;font-weight:700;letter-spacing:1px;color:var(--aqua-400)}.live-orb{height:215px;position:relative;display:grid;place-items:center;isolation:isolate}.live-orb:before,.live-orb:after{content:'';position:absolute;width:184px;height:184px;border-radius:50%;border:1px solid rgba(0,190,176,.2);background:radial-gradient(circle,rgba(0,190,176,.13),transparent 70%);z-index:-1}.live-orb:after{width:145px;height:145px;border-style:dashed;animation:orb-drift 30s linear infinite}.live-orb .micbtn{width:108px;height:108px;box-shadow:0 12px 50px #00bfae33;border:1px solid #ffffff33;background:linear-gradient(140deg,#00bbae,#6874e8)}.live-orb .micbtn .ic{width:40px;height:40px}.live-hero[data-state=listening] .live-orb:before{animation:orb-breathe 1.7s ease-in-out infinite}.live-hero[data-state=speaking] .live-orb:before{animation:orb-breathe .8s ease-in-out infinite;border-color:#9296ef}.live-hero[data-state=connecting] .live-orb:after{animation:orb-drift 4s linear infinite}.live-caption{font-size:12px;line-height:1.9;color:var(--text-3);max-width:300px;margin:12px auto 0}.live-status{font-weight:800;font-size:16px}.live-level{width:70%;height:5px;margin-top:16px;accent-color:#00bfae}.live-transcript-heading{display:flex;justify-content:space-between;align-items:center}.live-transcript-heading .tag{font-size:10px}.live-transcript .bub-msg{border-radius:18px;padding:15px;line-height:1.95;max-width:calc(100% - 42px);white-space:pre-wrap}.live-transcript .bub-row{gap:8px;margin-bottom:12px}.live-transcript .bub-av{width:30px;height:38px;flex:0 0 30px}.live-transcript .bub-av .logomark{width:26px;height:36px}.live-empty{padding:28px 20px;text-align:center;border:1px dashed var(--stroke);border-radius:22px;color:var(--text-3);font-size:12px;line-height:2}.live-empty .ic{width:34px;height:34px;margin-bottom:10px;color:var(--aqua-400);display:block;margin-inline:auto}
@keyframes audio-pulse{to{transform:scaleY(1)}}@keyframes player-in{from{opacity:0;translate:0 12px}to{opacity:1;translate:0 0}}@keyframes panel-row-in{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}@keyframes step-glow{50%{box-shadow:0 0 0 6px #818af015}}@keyframes orb-drift{to{transform:rotate(360deg)}}@keyframes orb-breathe{50%{transform:scale(1.12);opacity:.5}}
@media(max-width:350px){.scenario-grid{gap:8px}.scenario-card{padding:12px!important}.chat-tools button{padding:7px!important;font-size:10px}.chat-page .chat-header{gap:7px!important}.flashcard-stage{padding:20px 15px}.audio-wave{gap:3px}.audio-player{padding:13px!important}}
.live-orb .micbtn{animation:none!important}.live-orb .micbtn .ic{color:#fff;stroke:currentColor!important;fill:none!important}
.bidi-line bdi[lang=en]{margin-inline:.12em}
/* Lesson progress is a sequence of numbered steps, not an ambiguous solid bar. */
.steps5{gap:7px!important;min-height:36px;margin-block:16px;isolation:isolate}
.steps5 .dot5{position:relative;display:grid;place-items:center;overflow:hidden;height:32px!important;min-width:0;border:1px solid var(--stroke);border-radius:11px!important;background:var(--surface-2)!important;box-shadow:none;animation:none}
.step-fill{position:absolute;inset:0;background:linear-gradient(110deg,#0bb9a7,#278fcb);transform:scaleX(0);transform-origin:right;transition:transform .7s cubic-bezier(.2,.75,.25,1);transition-delay:var(--step-delay)}
.steps5 .dot5.done{background:var(--surface-2)!important;border-color:#0bb9a755}
.progress-visible .dot5.done .step-fill{transform:scaleX(1)}
.step-number{position:relative;display:grid;place-items:center;font-size:12px;font-weight:800;color:var(--text-3)}
.step-number .ic{width:17px;height:17px;stroke-width:2.2;stroke:#fff!important}
.steps5 .dot5.now{background:#818af014!important;border-color:#818af0;box-shadow:0 0 0 3px #818af010;transform:none;animation:next-step-breathe 2.8s ease-in-out infinite}
.dot5.now .step-number{color:var(--text-1)}
.task-check{position:relative;min-height:44px;padding:7px 11px;border:1px solid var(--stroke);border-radius:14px;background:var(--surface-2);transition:background .25s,border-color .25s;gap:8px}
.task-check input{position:absolute;width:1px;height:1px;opacity:0}
.task-check-art{width:23px;height:23px;display:grid;place-items:center;border:1.5px solid var(--text-3);border-radius:8px;background:var(--surface);transition:background .25s,border-color .25s}
.task-check-art .ic{width:16px;height:16px;opacity:0;transform:scale(.5);transition:opacity .2s,transform .3s}
.task-check:has(input:checked){background:#00bfae12;border-color:#00bfae55;color:var(--text-1)}
.task-check input:checked+.task-check-art{background:#087f75;border-color:#087f75;color:#fff}
.task-check input:checked+.task-check-art .ic{opacity:1;transform:scale(1);stroke:#fff!important}
.task-check:has(input:focus-visible){outline:3px solid var(--aqua-400);outline-offset:3px}
.task-check:has(input:disabled){opacity:.55;cursor:wait}
.task-card.just-completed{animation:task-complete .7s ease-out}
.task-card.just-completed .task-check-art{animation:check-pop .5s cubic-bezier(.2,.8,.2,1)}
.streak-stat{gap:7px!important;padding:7px 10px!important;border-radius:15px!important;flex-shrink:0}
.streak-stat>span{display:flex;flex-direction:column;align-items:center;line-height:1.4}
.streak-stat b{font-size:14px}.streak-stat small{font-size:9px;color:var(--text-2);white-space:nowrap;font-weight:500}
.friendly .streak-stat svg.ic{width:24px;height:28px;fill:#ecaa5215}
.sect h3>.ic{width:22px!important;height:22px!important;flex:0 0 22px!important;stroke-width:1.8}
.lesson-hero-ic{width:62px!important;height:62px!important;flex-basis:62px!important;border-radius:20px!important;background:#ffffff1c!important;border:1px solid #ffffff45;box-shadow:inset 0 1px 0 #ffffff30,0 8px 24px #15325822}
.lesson-hero-ic .ic{width:34px!important;height:34px!important;color:#fff!important}
.badge-tile>.ic{width:30px;height:30px;margin:4px 0 8px;color:#d8a64d;stroke-width:1.7}
.badge-tile.locked>.ic{color:var(--text-3)}
.tab .tic{position:relative}.tab.on:not(.fab) .tic{animation:nav-arrive .45s cubic-bezier(.2,.8,.2,1)}
.tab:active .tic{scale:.88}.tab .tic,.tab .logomark{transition:scale .2s,transform .25s}
.tab.fab:hover .logomark,.tab.fab:focus-visible .logomark{transform:rotate(-7deg) translateY(-2px)}
.tab:focus-visible{outline-offset:-4px}
@media(hover:hover){.bigtile:hover .bt-ic,.dircell:hover .di,.quick-grid .row:hover>.ic{transform:translateY(-3px) rotate(-4deg)}.bt-ic,.di,.quick-grid .row>.ic{transition:transform .25s}}
@media(max-width:350px){.appbar:has(.streak-stat){gap:8px;flex-wrap:wrap}.appbar:has(.streak-stat) .chipstat{margin-inline-start:auto}.task-actions{flex-wrap:wrap}}
@keyframes next-step-breathe{50%{box-shadow:0 0 0 5px #818af020}}
@keyframes check-pop{0%{transform:scale(.7)}60%{transform:scale(1.18)}100%{transform:scale(1)}}
@keyframes task-complete{0%{box-shadow:0 0 0 0 #00bfae40}65%{box-shadow:0 0 0 7px #00bfae15}100%{box-shadow:0 0 0 10px #00bfae00}}
@keyframes nav-arrive{0%{opacity:.4;transform:translateY(2px) scale(.85)}70%{transform:translateY(-4px) scale(1.05)}100%{opacity:1;transform:translateY(-3px) scale(1)}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}.reduce-motion *,.reduce-motion *:before,.reduce-motion *:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}