:root{
  --green:#0d7a52;--green-dark:#075d3e;--green-soft:#eaf7f1;--green-faint:#f4fbf7;
  --ink:#13231c;--muted:#66766f;--line:#dfe9e4;--bg:#f5f8f6;--warn:#fff6df;--warn-line:#eed18a;
  --red:#b42318;--shadow:0 18px 50px rgba(34,70,53,.08)
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
button,input{font:inherit}
button{cursor:pointer}
.app{display:grid;grid-template-columns:250px 1fr;min-height:100vh}
.sidebar{position:sticky;top:0;height:100vh;background:#fff;border-right:1px solid var(--line);padding:24px 18px;display:flex;flex-direction:column;z-index:4}
.brand{display:flex;gap:12px;align-items:center}.mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#fff;background:var(--green);font-weight:850;font-size:22px;box-shadow:0 10px 25px rgba(13,122,82,.18)}.mark.small{width:34px;height:34px;border-radius:11px;font-size:17px}.brand-name{font-size:20px;font-weight:850;letter-spacing:-.02em}.tagline{color:var(--muted);font-size:12px;margin-top:2px}
.nav{display:flex;flex-direction:column;gap:7px;margin-top:38px}.nav-item{display:flex;align-items:center;gap:11px;border:0;background:transparent;padding:12px 13px;border-radius:12px;text-align:left;color:#33453d}.nav-item:hover,.nav-item.active{background:var(--green-soft);color:var(--green-dark);font-weight:760}.badge{margin-left:auto;background:#e94444;color:#fff;border-radius:99px;min-width:21px;padding:2px 6px;font-size:11px;text-align:center}
.premium-card{margin-top:auto;border:1px solid #eadfbd;background:#fffaf0;border-radius:16px;padding:15px}.premium-card strong{display:block;color:var(--green-dark)}.premium-card small{display:block;color:var(--muted);line-height:1.45;margin:8px 0 12px}.premium-btn{width:100%;border:0;border-radius:10px;padding:10px;background:var(--green);color:#fff;font-weight:760}
.sidebar-account{display:flex;align-items:center;gap:10px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--green-soft);color:var(--green-dark);font-weight:850}.sidebar-user{min-width:0}.sidebar-user strong,.sidebar-user small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-user small{color:var(--muted);font-size:11px;margin-top:2px}
.shell{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:20px 0 44px}.topbar{display:flex;justify-content:flex-end;align-items:center;min-height:48px}.mobile-brand{display:none}.account-actions{display:flex;gap:9px;align-items:center}.ghost-btn,.account-btn{border-radius:11px;padding:10px 14px;font-weight:760}.ghost-btn{background:#fff;border:1px solid var(--line);color:var(--ink)}.account-btn{background:var(--green);border:1px solid var(--green);color:#fff}.streak{font-size:13px;margin-right:4px}
.hero{display:grid;grid-template-columns:1.5fr .8fr;gap:30px;align-items:center;padding:34px 0 20px}.eyebrow{color:var(--green);font-size:12px;font-weight:850;letter-spacing:.12em}.hero h1{font-size:clamp(44px,6vw,72px);line-height:.98;letter-spacing:-.055em;margin:12px 0 18px}.hero h1 span{color:var(--green)}.lead{font-size:18px;line-height:1.65;color:var(--muted);max-width:720px}.tiki-orb{height:230px;position:relative;display:grid;place-items:center;background:radial-gradient(circle,#dff4e9 0,rgba(223,244,233,.45) 45%,transparent 70%)}.tiki-face{width:120px;height:120px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,#24a56d,#08754e);color:#fff;font-size:56px;font-weight:900;box-shadow:0 20px 50px rgba(13,122,82,.2);border:10px solid rgba(255,255,255,.8)}.speech{position:absolute;top:24px;left:10px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);font-size:13px;max-width:160px}
.adaptive-card,.card,.notes-card,.review-card,.dashboard-card,.save-card{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}
.adaptive-card{padding:18px;margin:8px 0 18px;background:linear-gradient(90deg,var(--green-faint),#fff)}.adaptive-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.adaptive-head span{font-size:13px;color:var(--muted)}.examples{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:13px}.example{min-height:64px;text-align:left;border:1px solid var(--line);background:#fff;border-radius:12px;padding:11px;color:#2f4038;line-height:1.35}.example:hover{border-color:#a9cbbb;background:var(--green-soft)}
.card{padding:22px}.notice{display:flex;gap:12px;align-items:flex-start;background:var(--warn);border:1px solid var(--warn-line);padding:12px 14px;border-radius:13px;margin-bottom:18px}.notice strong{white-space:nowrap}.notice span{color:#69562d;font-size:13px;line-height:1.45}.mode-label{font-weight:800;margin-bottom:12px}.modes{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.mode{min-height:76px;border:1px solid var(--line);background:#fff;border-radius:14px;color:var(--ink);transition:.18s ease;padding:11px}.mode b,.mode span{display:block}.mode span{color:var(--muted);font-size:11px;margin-top:5px}.mode:hover{border-color:#a9cbbb;transform:translateY(-1px)}.mode.active{border-color:var(--green);background:var(--green-soft);color:var(--green-dark)}
.lesson-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;margin-top:18px;border-top:1px solid var(--line);padding-top:18px}.voice-panel{text-align:center;padding:22px 10px}.pulse{width:100px;height:100px;margin:0 auto 16px;border-radius:999px;background:var(--green-soft);display:grid;place-items:center;position:relative}.pulse.live::after{content:"";position:absolute;inset:-10px;border:2px solid rgba(13,122,82,.28);border-radius:999px;animation:pulse 1.6s infinite}@keyframes pulse{0%{transform:scale(.85);opacity:1}100%{transform:scale(1.25);opacity:0}}.mic{font-size:38px}.voice-panel h2{margin:0;font-size:24px}.status{color:var(--muted);min-height:24px}.timer{font-variant-numeric:tabular-nums;font-size:14px;font-weight:850;color:var(--green);margin:7px 0}.controls{display:flex;justify-content:center;gap:10px;margin-top:16px}.primary,.secondary{border:0;border-radius:13px;padding:13px 19px;font-weight:780}.primary{color:#fff;background:var(--green);box-shadow:0 10px 25px rgba(13,122,82,.18)}.primary:hover{background:var(--green-dark)}.secondary{color:var(--ink);background:#edf2ef}button:disabled{opacity:.48;cursor:not-allowed}.lesson-benefits{background:var(--green-faint);border-radius:16px;padding:20px}.lesson-benefits h3{margin:0 0 13px}.lesson-benefits p{margin:10px 0;color:#385047}
.save-card{margin-top:18px;padding:17px 20px;display:flex;justify-content:space-between;align-items:center;gap:20px;background:linear-gradient(90deg,#fff,#f4fbf7)}.save-card p{margin:5px 0 0;color:var(--muted);font-size:13px}
.dashboard-card,.notes-card,.review-card{margin-top:18px;padding:22px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:16px}.section-head h3{margin:5px 0 0;font-size:22px}.pill{background:var(--green-soft);color:var(--green-dark);padding:8px 10px;border-radius:999px;font-size:12px;font-weight:800}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:18px 0}.stat{background:var(--green-faint);border-radius:14px;padding:15px;text-align:center}.stat strong{display:block;font-size:26px;color:var(--green)}.stat span{font-size:12px;color:var(--muted)}.dashboard-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.subhead{font-weight:800;margin-bottom:8px}.list-box{border:1px solid var(--line);border-radius:14px;min-height:120px;padding:10px}.list-item{padding:10px;border-bottom:1px solid var(--line)}.list-item:last-child{border-bottom:0}.list-item strong,.list-item small{display:block}.list-item small{color:var(--muted);margin-top:3px}.mistake-original{color:var(--red);font-size:13px}.mistake-better{color:var(--green-dark);font-size:13px;font-weight:700;margin-top:3px}
.link-btn{border:0;background:transparent;color:var(--green);font-weight:760}.notes{margin-top:16px}.placeholder{color:#89968f}.answer-card{border:1px solid var(--line);border-radius:16px;padding:16px;margin:12px 0}.label{display:block;font-size:11px;letter-spacing:.08em;font-weight:850;color:var(--muted);margin-bottom:5px}.student-text{line-height:1.55}.correction{margin-top:12px;background:var(--green-soft);border-radius:12px;padding:12px 14px}.correction .better{font-weight:760;line-height:1.5}.issue{display:inline-flex;margin-top:8px;padding:4px 8px;border-radius:999px;background:#fff;color:var(--green-dark);font-size:12px;font-weight:750}.tiki-note{margin-top:10px;color:var(--muted);font-size:13px;line-height:1.45}
.recording-box{display:grid;grid-template-columns:1fr;gap:10px;border:1px solid var(--line);border-radius:16px;padding:16px;margin-top:18px}.recording-box p{margin:5px 0;color:var(--muted);font-size:14px}.recording-box audio{width:100%}.download{color:var(--green);font-weight:750;text-decoration:none;font-size:14px}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}.summary-box{background:#f5f8f6;border-radius:14px;padding:14px;text-align:center}.summary-box strong{display:block;font-size:24px;color:var(--green)}.summary-box span{font-size:12px;color:var(--muted)}.review-list{margin-top:14px}.review-item{border-top:1px solid var(--line);padding:14px 2px}.review-item:first-child{border-top:0}.review-item p{margin:5px 0;line-height:1.5}.bad{color:var(--red)}.good{color:var(--green-dark);font-weight:700}.save-status{border-radius:12px;padding:11px 13px;margin:12px 0;font-size:13px}.save-status.ok{background:var(--green-soft);color:var(--green-dark)}.save-status.warn{background:var(--warn);color:#69562d}
footer{display:flex;justify-content:space-between;color:var(--muted);font-size:13px;padding:22px 4px 0}
.modal{position:fixed;inset:0;background:rgba(10,28,20,.5);display:grid;place-items:center;padding:18px;z-index:30}.modal-card{width:min(440px,100%);background:#fff;border-radius:22px;padding:26px;box-shadow:0 30px 90px rgba(0,0,0,.22);position:relative}.modal-close{position:absolute;right:14px;top:12px;border:0;background:transparent;font-size:28px;color:var(--muted)}.modal-mark{margin:0 auto}.modal-card h2{text-align:center;margin:14px 0 6px}.modal-card>p{text-align:center;color:var(--muted);font-size:14px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#f1f5f3;border-radius:11px;padding:4px;margin:18px 0}.auth-tab{border:0;background:transparent;border-radius:8px;padding:9px}.auth-tab.active{background:#fff;color:var(--green-dark);font-weight:800;box-shadow:0 2px 9px rgba(30,60,45,.08)}#authForm{display:grid;gap:12px}#authForm label{font-size:12px;font-weight:750;color:#43534c}#authForm input{display:block;width:100%;margin-top:6px;border:1px solid var(--line);border-radius:11px;padding:12px;outline:none}#authForm input:focus{border-color:var(--green)}.wide{width:100%}.auth-message{margin-top:12px;border-radius:11px;padding:11px;background:var(--green-soft);color:var(--green-dark);font-size:13px}.auth-message.error{background:#fff0ef;color:var(--red)}.guest-link{width:100%;border:0;background:transparent;color:var(--muted);margin-top:12px}.hidden{display:none!important}
@media(max-width:1000px){.app{grid-template-columns:1fr}.sidebar{display:none}.shell{width:min(920px,calc(100% - 28px))}.topbar{justify-content:space-between}.mobile-brand{display:flex;align-items:center;gap:8px}.examples{grid-template-columns:1fr 1fr 1fr}.modes{grid-template-columns:1fr 1fr 1fr}.hero{grid-template-columns:1fr}.tiki-orb{display:none}}
@media(max-width:700px){.shell{padding-top:10px}.topbar{align-items:flex-start}.account-actions{flex-wrap:wrap;justify-content:flex-end}.hero{padding-top:22px}.hero h1{font-size:48px}.examples{grid-template-columns:1fr}.adaptive-head{align-items:flex-start;flex-direction:column}.modes{grid-template-columns:1fr 1fr}.lesson-grid,.dashboard-columns{grid-template-columns:1fr}.notice{flex-direction:column;gap:4px}.controls{flex-direction:column}.primary,.secondary{width:100%}.stat-grid{grid-template-columns:1fr 1fr}.save-card{align-items:flex-start;flex-direction:column}.summary-grid{grid-template-columns:1fr 1fr 1fr}footer{flex-direction:column;gap:4px}}

.language-card{background:linear-gradient(100deg,#f1faf6,#fff);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:20px;margin:8px 0 18px}.language-title{font-size:18px;font-weight:850;color:var(--green-dark)}.language-copy p{color:var(--muted);line-height:1.55;margin:7px 0 12px}.language-pills{display:flex;flex-wrap:wrap;gap:8px}.language-pills span{background:#fff;border:1px solid var(--line);border-radius:10px;padding:8px 11px;font-size:13px;font-weight:700}.language-examples{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.language-example{border:1px solid var(--line);border-radius:13px;padding:13px;background:#fff;min-height:88px}.language-example b,.language-example span{display:block}.language-example span{margin-top:8px;color:#496057;font-size:13px;line-height:1.45}.learning-flow{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;margin-top:13px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px;font-size:12px}.learning-flow b{color:#9aa9a2}.feature-view{background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:22px;margin-top:18px}.view-intro{color:var(--muted);margin:8px 0 18px}.feature-list{display:grid;gap:10px}.feature-row{border:1px solid var(--line);border-radius:14px;padding:14px;display:grid;grid-template-columns:1fr auto;gap:14px;align-items:center}.feature-row small{display:block;color:var(--muted);margin-top:5px}.feature-row .bad{margin:0}.feature-row .good{margin:5px 0 0}.practice-btn{border:0;border-radius:10px;background:var(--green);color:#fff;padding:9px 12px;font-weight:750}.progress-message{background:var(--green-faint);border-radius:14px;padding:18px}.progress-message b,.progress-message span{display:block}.progress-message span{color:var(--muted);margin-top:5px}@media(max-width:700px){.language-examples{grid-template-columns:1fr}.feature-row{grid-template-columns:1fr}.learning-flow{justify-content:flex-start}}


/* V3.4 — permanent lesson transcript history */
.tutor-way-notice{background:linear-gradient(90deg,#eefaf4,#fff);border-color:#b8dfcc}
.tutor-way-notice span{color:#385047}
.lesson-history-row{align-items:center}
.history-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.compact-btn{padding:9px 12px}
.lesson-transcript{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.transcript-row{max-width:82%;border-radius:16px;padding:14px 16px;border:1px solid var(--line)}
.transcript-row.user{align-self:flex-end;background:#f4f7f5}
.transcript-row.assistant{align-self:flex-start;background:var(--green-soft);border-color:#cce4d8}
.transcript-role{display:block;font-size:10px;letter-spacing:.12em;font-weight:850;color:var(--muted);margin-bottom:5px}
.transcript-text{line-height:1.55;white-space:pre-wrap}
.lesson-corrections{margin-top:22px}
.saved-correction{border-top:1px solid var(--line);padding:14px 2px}
.saved-correction .bad{margin:5px 0;color:var(--red)}
.saved-correction .good{margin:5px 0;color:var(--green-dark);font-weight:700}
.saved-correction small{color:var(--muted)}
.empty-history{padding:24px;border:1px dashed #cbd9d1;border-radius:14px;background:#fbfdfc;color:var(--muted)}
.empty-history strong{display:block;color:var(--ink);margin-bottom:5px}
.empty-history p{margin:0}
@media(max-width:700px){
  .transcript-row{max-width:96%}
  .history-actions{justify-content:flex-start}
}


/* V3.5 saved per-lesson audio */
.saved-lesson-audio{
  margin:18px 0 22px;
}
.saved-lesson-audio audio{
  width:100%;
}
.saved-lesson-audio audio.hidden{
  display:none;
}

/* V3.5.3 consolidated mobile + lesson organizer */
.mobile-nav{display:none}
.lesson-edit-card{margin-top:22px;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fbfdfc}
.lesson-edit-card label{display:block;font-size:12px;font-weight:750;color:#43534c;margin-top:12px}
.lesson-edit-card input,.lesson-edit-card textarea{display:block;width:100%;margin-top:6px;border:1px solid var(--line);border-radius:11px;padding:12px;background:#fff}
.lesson-edit-card textarea{resize:vertical}
.edit-status{margin-left:10px;font-size:12px;color:var(--green-dark)}
@media(max-width:1100px){
  body{padding-bottom:80px}
  .mobile-nav{
    display:grid;grid-template-columns:repeat(4,1fr);
    position:fixed;left:0;right:0;bottom:0;z-index:1000;
    background:rgba(255,255,255,.98);border-top:1px solid var(--line);
    box-shadow:0 -8px 28px rgba(16,50,38,.08);
    padding:7px 8px calc(7px + env(safe-area-inset-bottom));
  }
  .mobile-nav-item{
    border:0;background:transparent;color:#52665e;min-height:54px;border-radius:12px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;font:inherit
  }
  .mobile-nav-item span{font-size:18px;line-height:1}
  .mobile-nav-item b{font-size:11px}
  .mobile-nav-item.active{background:var(--green-soft);color:var(--green-dark)}
}

.personal-learning{margin:0 0 22px;padding:18px;border:1px solid var(--line);border-radius:18px;background:#fbfdfc}.personal-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}.personal-head h3{margin:3px 0}.plan-setup{border-top:1px solid var(--line);padding-top:14px}.plan-setup>label{display:block;margin:10px 0;font-size:12px;font-weight:700}.plan-setup select{width:100%;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fff}.focus-options{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:10px 0}.focus-options label{padding:9px;border:1px solid var(--line);border-radius:10px;font-size:12px;background:#fff}.plan-two{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:10px 0 14px}.plan-two label{font-size:12px;font-weight:700}.plan-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.plan-summary>div,.plan-card,.recommend-card,.week-line{background:#fff;border:1px solid var(--line);border-radius:13px;padding:13px}.plan-summary small,.plan-card>small,.recommend-card small{display:block;color:var(--muted);font-size:10px;font-weight:800}.plan-summary strong{display:block;margin-top:4px}.plan-cards{display:grid;grid-template-columns:1fr 1.15fr;gap:9px;margin-top:9px}.plan-card h4{margin:7px 0 4px}.plan-card p{color:var(--muted);font-size:12px}.today-row{display:flex;gap:9px;align-items:center;border-bottom:1px solid var(--line);padding:7px 0}.today-row p{margin:2px 0}.recommend-card{margin-top:9px}.recommend-card p{margin:6px 0 0}.week-line{display:flex;justify-content:space-between;margin-top:9px;font-size:12px}@media(max-width:700px){.plan-summary,.plan-cards,.plan-two{grid-template-columns:1fr}.focus-options{grid-template-columns:1fr 1fr}.week-line{flex-direction:column;gap:5px}}

.plan-guidance{margin:4px 0 0;color:var(--muted);font-size:12px}.personal-head>div{min-width:0}

/* V3.7 Vocabulary Bank + Saved Phrases */
.vocab-add-card{padding:18px;border:1px solid var(--line);border-radius:16px;background:#fbfdfc;margin-bottom:14px}
.vocab-type-toggle{display:flex;gap:8px;margin-bottom:12px}
.vocab-type-btn,.vocab-filter,.small-action-btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;font:inherit;font-size:12px;font-weight:700;cursor:pointer}
.vocab-type-btn.active,.vocab-filter.active{background:var(--green-soft);color:var(--green-dark);border-color:#b8ddce}
.vocab-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.vocab-form-grid label{font-size:12px;font-weight:700}.vocab-form-grid label.wide{grid-column:1/-1}.vocab-form-grid input{width:100%;margin-top:5px;border:1px solid var(--line);border-radius:10px;padding:10px;background:#fff}
.vocab-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:12px 0}.vocab-toolbar>div{display:flex;gap:7px;flex-wrap:wrap}.vocab-toolbar span{font-size:12px;color:var(--muted)}
.vocabulary-list{display:grid;gap:10px}.vocab-card{border:1px solid var(--line);border-radius:15px;background:#fff;padding:15px}.vocab-card-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.vocab-card h3{margin:5px 0 0}.vocab-badge{font-size:9px;letter-spacing:.1em;font-weight:900;color:var(--green-dark)}.vocab-status{font-size:10px;border-radius:999px;padding:5px 8px;background:#eef4f1}.vocab-status.mastered{background:#e8f7ef;color:var(--green-dark)}.vocab-meaning{margin:9px 0 0}.vocab-example{font-style:italic;color:var(--muted);margin:7px 0}.vocab-notes{font-size:12px;color:var(--muted)}.vocab-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}
.selection-save-bar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:12px 0;padding:10px 12px;border:1px dashed var(--line);border-radius:12px;background:#fbfdfc;font-size:12px}
@media(max-width:700px){.vocab-form-grid{grid-template-columns:1fr}.vocab-form-grid label.wide{grid-column:auto}.vocab-toolbar{align-items:flex-start;flex-direction:column}}
@media(max-width:1100px){.mobile-nav{grid-template-columns:repeat(5,1fr)}}

.vocab-primary-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-top:10px}


/* V3.8 Practice My Mistakes */
.mistake-summary-grid{display:grid;grid-template-columns:1fr 1fr 2fr;gap:10px;margin:14px 0}
.mistake-summary-card{border:1px solid var(--line);border-radius:14px;background:#fbfdfc;padding:14px}
.mistake-summary-card small{display:block;font-size:10px;font-weight:850;letter-spacing:.08em;color:var(--muted);margin-bottom:5px}
.mistake-summary-card strong{font-size:20px;color:var(--green-dark)}
.mistake-summary-card.wide strong{font-size:14px}
.mistake-practice-toolbar{display:flex;justify-content:space-between;gap:12px;align-items:center;margin:12px 0}
.mistake-filter-group,.mistake-batch-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.mistake-filter{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;font:inherit;font-size:12px;font-weight:750;cursor:pointer}
.mistake-filter.active{background:var(--green-soft);color:var(--green-dark);border-color:#b8ddce}
.mistake-selection-status{font-size:12px;color:var(--muted);margin:6px 0 10px}
.mistake-practice-row{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:12px;align-items:center}
.mistake-practice-row.mastered{opacity:.72}
.mistake-select{display:flex;align-items:center;justify-content:center;padding:4px}
.mistake-select input{width:18px;height:18px;accent-color:var(--green)}
.mistake-practice-info{min-width:0}
.mistake-row-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;justify-content:flex-end}
@media(max-width:760px){
  .mistake-summary-grid{grid-template-columns:1fr 1fr}.mistake-summary-card.wide{grid-column:1/-1}
  .mistake-practice-toolbar{align-items:stretch;flex-direction:column}
  .mistake-practice-row{grid-template-columns:auto 1fr}
  .mistake-row-actions{grid-column:2;justify-content:flex-start}
}


/* V3.9 Weekly Report */
.week-switcher{display:flex;align-items:center;justify-content:space-between;gap:10px;border:1px solid var(--line);border-radius:14px;padding:10px 12px;margin:14px 0}
.week-switcher strong{text-align:center;font-size:13px}
.weekly-stat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin:14px 0}
.weekly-stat{background:var(--green-soft);border-radius:14px;padding:14px;text-align:center}
.weekly-stat span{display:block;font-size:18px}.weekly-stat strong{display:block;font-size:20px;color:var(--green-dark);margin:4px 0}.weekly-stat small{color:var(--muted);font-size:11px}
.weekly-report-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}
.weekly-panel{border:1px solid var(--line);border-radius:16px;background:#fff;padding:16px;margin:12px 0}
.weekly-report-grid .weekly-panel{margin:0}
.weekly-panel h4{font-size:17px;margin:5px 0 12px}
.weekly-line,.weekly-activity-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px solid var(--line)}
.weekly-line:last-child,.weekly-activity-row:last-child{border-bottom:0}
.weekly-line span,.weekly-activity-row span,.weekly-activity-row small{font-size:12px;color:var(--muted)}
.weekly-activity-row div{display:flex;flex-direction:column;gap:3px}
.weekly-win{padding:7px 0;color:var(--green-dark);font-weight:650}
.weekly-recommendation{background:linear-gradient(135deg,#f3fbf7,#fffaf0)}
.weekly-recommendation p{color:var(--muted);max-width:780px}
.muted-copy{color:var(--muted)}
@media(max-width:900px){.weekly-stat-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:650px){.weekly-stat-grid{grid-template-columns:repeat(2,1fr)}.weekly-report-grid{grid-template-columns:1fr}.week-switcher{gap:6px}.week-switcher .ghost-btn{padding:8px}}


/* V3.9.1 — Personal tutor positioning highlight */
.personal-tutor-highlight{
  display:grid;
  grid-template-columns:auto minmax(0,1fr);
  gap:16px;
  align-items:start;
  margin:18px 0;
  padding:22px 24px;
  border:1px solid #b8ddce;
  border-radius:18px;
  background:linear-gradient(135deg,#eefaf4 0%,#ffffff 58%,#fff9ec 100%);
  box-shadow:0 10px 28px rgba(14,93,65,.07);
}
.personal-tutor-highlight-icon{
  width:48px;
  height:48px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:#0d7a52;
  color:#fff;
  font-size:23px;
  box-shadow:0 8px 18px rgba(13,122,82,.16);
}
.personal-tutor-highlight-copy h2{
  margin:4px 0 8px;
  font-size:24px;
  line-height:1.15;
}
.personal-tutor-highlight-copy p{
  margin:0;
  max-width:980px;
  font-size:15px;
  line-height:1.65;
  color:var(--muted);
}
.personal-tutor-highlight-copy p strong{
  color:var(--text);
}
@media(max-width:700px){
  .personal-tutor-highlight{
    grid-template-columns:1fr;
    padding:18px;
  }
  .personal-tutor-highlight-icon{
    width:42px;
    height:42px;
  }
  .personal-tutor-highlight-copy h2{
    font-size:21px;
  }
}


/* V3.9.2 — Weekly coaching review integrated into Progress */
.progress-section-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:8px 0 14px}
.progress-section-title h3{margin:3px 0 0}
.week-controls{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.week-controls span{font-size:13px;font-weight:800;color:var(--muted)}
.small-btn{border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 11px;font-weight:800;cursor:pointer}
.small-btn:disabled{opacity:.4;cursor:not-allowed}
.weekly-stats{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px;margin-bottom:14px}
.weekly-stat{border:1px solid var(--line);background:#f8fbf9;border-radius:14px;padding:14px 10px;text-align:center;display:flex;flex-direction:column;gap:3px}
.weekly-stat span{font-size:19px}.weekly-stat strong{font-size:20px}.weekly-stat small{color:var(--muted)}
.weekly-columns{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.weekly-panel{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff;min-height:100px}
.weekly-line{display:flex;justify-content:space-between;gap:12px;padding:8px 0;border-bottom:1px solid #edf2ef}
.weekly-line:last-child{border-bottom:0}
.weekly-line span,.muted-copy{color:var(--muted)}
.weekly-recommendation{margin-top:12px;border:1px solid #b8ddce;border-radius:16px;padding:18px;display:flex;align-items:center;justify-content:space-between;gap:18px;background:linear-gradient(135deg,#eefaf4,#fff)}
.weekly-recommendation h3{margin:4px 0 5px}.weekly-recommendation p{margin:0;color:var(--muted)}
.progress-divider{height:1px;background:var(--line);margin:28px 0 22px}
@media(max-width:900px){.weekly-stats{grid-template-columns:repeat(3,1fr)}}
@media(max-width:700px){
 .progress-section-title,.weekly-recommendation{align-items:flex-start;flex-direction:column}
 .weekly-columns{grid-template-columns:1fr}
 .weekly-stats{grid-template-columns:repeat(2,1fr)}
 .week-controls{width:100%}
}


/* V3.9.3 — Click TiKi to start talking */
.tiki-orb-button{
  appearance:none;
  border:0;
  font:inherit;
  color:inherit;
  cursor:pointer;
  background:transparent;
  position:relative;
  padding:18px;
}
.tiki-orb-button .speech{
  display:flex;
  flex-direction:column;
  gap:2px;
  text-align:left;
}
.tiki-orb-button .speech strong{
  color:var(--green-dark);
  font-size:12px;
}
.tiki-orb-button .speech span{
  font-size:12px;
}
.tap-to-talk{
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:-9px;
  white-space:nowrap;
  border:1px solid #b8ddce;
  background:#fff;
  color:var(--green-dark);
  border-radius:999px;
  padding:6px 10px;
  font-size:11px;
  font-weight:850;
  box-shadow:0 5px 15px rgba(13,122,82,.08);
}
.tiki-orb-button:hover .tiki-face,
.tiki-orb-button:focus-visible .tiki-face{
  transform:scale(1.06);
  box-shadow:0 0 0 12px rgba(13,122,82,.08),0 14px 32px rgba(13,122,82,.2);
}
.tiki-orb-button:focus-visible{
  outline:3px solid rgba(13,122,82,.2);
  outline-offset:4px;
  border-radius:22px;
}
.tiki-orb-button .tiki-face{
  transition:transform .18s ease,box-shadow .18s ease;
}
@media(max-width:700px){
  .tap-to-talk{position:static;transform:none;margin-top:8px;display:inline-block}
}


/* V3.9.4 — clearer working hero talk state */
.tiki-orb-button:disabled{opacity:.85;cursor:wait}
.tiki-orb-button.is-live .tiki-face{
  box-shadow:0 0 0 12px rgba(13,122,82,.12),0 0 0 24px rgba(13,122,82,.06),0 16px 38px rgba(13,122,82,.25);
  animation:tikiLivePulse 1.8s ease-in-out infinite;
}
.tiki-orb-button.is-live .tap-to-talk{
  background:#0d7a52;
  color:#fff;
  border-color:#0d7a52;
}
@keyframes tikiLivePulse{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.045)}
}


/* V3.9.5 — Mobile TiKi quick-talk button */
@media (max-width: 700px){
  .hero{
    display:grid !important;
    grid-template-columns:1fr !important;
    gap:18px !important;
  }
  .tiki-orb{
    display:flex !important;
    visibility:visible !important;
    opacity:1 !important;
  }
  .tiki-orb-button{
    width:100%;
    max-width:280px;
    min-height:150px;
    margin:4px auto 10px;
    padding:10px 12px 18px;
    align-items:center;
    justify-content:center;
  }
  .tiki-orb-button .tiki-face{
    width:88px;
    height:88px;
    font-size:48px;
  }
  .tiki-orb-button .speech{
    position:absolute;
    top:0;
    left:8px;
    width:150px;
    padding:10px 12px;
    border-radius:14px;
    background:#fff;
    border:1px solid var(--line);
    box-shadow:0 8px 20px rgba(0,0,0,.06);
    z-index:2;
  }
  .tiki-orb-button .speech strong{
    font-size:11px;
  }
  .tiki-orb-button .speech span{
    font-size:11px;
    line-height:1.25;
  }
  .tiki-orb-button .tap-to-talk{
    position:absolute;
    left:50%;
    bottom:0;
    transform:translate(-50%,50%);
    margin:0;
    display:block;
    font-size:11px;
    z-index:3;
  }
}

@media (max-width: 420px){
  .tiki-orb-button{
    max-width:250px;
    min-height:145px;
  }
  .tiki-orb-button .tiki-face{
    width:82px;
    height:82px;
    font-size:44px;
  }
  .tiki-orb-button .speech{
    width:140px;
  }
}

.google-signin{width:100%;min-height:46px;border:1px solid #d6ddd9;background:#fff;border-radius:11px;display:flex;align-items:center;justify-content:center;gap:10px;font-weight:750;color:#26332d;cursor:pointer}.google-signin:hover{background:#f8faf9}.google-signin:disabled{opacity:.6;cursor:wait}.google-g{font-size:19px;font-weight:900;color:#4285f4;font-family:Arial,sans-serif}.auth-divider{display:flex;align-items:center;gap:10px;margin:13px 0;color:#7a8982;font-size:11px}.auth-divider:before,.auth-divider:after{content:"";height:1px;background:var(--line);flex:1}.auth-divider span{white-space:nowrap}


/* V4.0 Premium + usage */
.usage-mini{margin:10px 0 2px}
.usage-mini-row{display:flex;justify-content:space-between;gap:8px;font-size:10px;color:var(--muted);margin-bottom:5px}
.usage-bar{height:7px;border-radius:999px;background:#e7eee9;overflow:hidden}
.usage-bar i{display:block;height:100%;width:0;background:var(--green);border-radius:999px;transition:width .25s ease}
.premium-modal-card{max-width:650px}
.premium-intro{text-align:center;color:var(--muted);margin-top:-3px}
.premium-plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0}
.premium-plan{position:relative;border:1px solid var(--line);background:#fff;border-radius:16px;padding:18px;text-align:left;cursor:pointer;font:inherit;display:flex;flex-direction:column;gap:5px}
.premium-plan:hover{border-color:#89cbb1;box-shadow:0 10px 24px rgba(13,122,82,.08)}
.premium-plan.recommended{border:2px solid var(--green);background:#f7fcf9}
.premium-plan-label{font-size:10px;letter-spacing:.09em;font-weight:900;color:var(--green-dark)}
.premium-plan strong{font-size:28px;color:var(--text)}
.premium-plan strong small{font-size:11px}
.premium-plan>span:not(.premium-plan-label):not(.best-value){color:var(--muted);font-size:12px}
.premium-plan b{margin-top:9px;color:var(--green-dark)}
.best-value{position:absolute;right:10px;top:10px;background:var(--green);color:#fff;border-radius:999px;padding:5px 8px;font-size:9px;font-weight:900;letter-spacing:.05em}
.premium-features{display:grid;grid-template-columns:1fr 1fr;gap:8px;border:1px solid var(--line);border-radius:14px;padding:14px;margin-bottom:12px}
.premium-features span{font-size:12px;color:var(--text)}
.free-plan-note{display:flex;justify-content:space-between;gap:12px;align-items:center;border-radius:12px;background:#f6f8f7;padding:12px;margin:12px 0;color:var(--muted);font-size:12px}
.free-plan-note strong{color:var(--text)}
@media(max-width:650px){
 .premium-plan-grid,.premium-features{grid-template-columns:1fr}
 .free-plan-note{align-items:flex-start;flex-direction:column}
}