:root{
  --forest-950:#0f2b22;--forest-900:#173f31;--forest-800:#245541;--forest-700:#356a53;
  --sage-600:#6f927b;--sage-400:#9db9a6;--sage-200:#d7e5da;--mint-100:#edf5ef;
  --lime-muted:#c8d7a8;--ivory:#f7f4ec;--paper:#fffdf8;--ink:#173029;--muted:#6b7973;
  --line:#dce5df;--danger:#a34646;--danger-bg:#fff2f1;--gold:#a8782c;--gold-bg:#fff8e8;
  --shadow:0 20px 60px rgba(23,63,49,.10);--radius:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 15% 0%,#eef6ef 0,transparent 38%),linear-gradient(180deg,var(--ivory),#f3f6f2 42%,#eef3ef);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh}
button,input,select{font:inherit}.top{min-height:72px;background:rgba(255,253,248,.90);backdrop-filter:blur(18px);border-bottom:1px solid rgba(23,63,49,.10);display:flex;align-items:center;justify-content:space-between;padding:10px 28px;position:sticky;top:0;z-index:20}.brand{display:flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.02em}.logo{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,var(--forest-900),var(--forest-700));color:#fff;box-shadow:0 10px 28px rgba(23,63,49,.22)}.brand-name{font-size:16px}.brand-name small{display:block;font-size:9px;letter-spacing:.17em;color:var(--sage-600);font-weight:800;margin-top:2px}.navwrap{display:flex;align-items:center;gap:14px}.nav{display:flex;gap:5px;background:#f2f5f1;padding:4px;border-radius:14px}.nav button,.ghost{border:0;background:transparent;color:var(--muted);padding:9px 11px;border-radius:10px;cursor:pointer;font-weight:650}.nav button:hover,.nav button.active{background:#fff;color:var(--forest-900);box-shadow:0 3px 12px rgba(23,63,49,.08)}.lang{display:flex;gap:3px;background:var(--forest-900);padding:4px;border-radius:13px}.lang button{border:0;background:transparent;color:#bdd0c4;padding:7px 9px;border-radius:9px;cursor:pointer;font-size:12px;font-weight:800}.lang button.active{background:#fff;color:var(--forest-900)}
main{max-width:1120px;margin:auto;padding:34px 20px 72px}.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:stretch}.card{background:rgba(255,253,248,.94);border:1px solid rgba(23,63,49,.10);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}.hero-card{min-height:430px;padding:44px;position:relative;overflow:hidden;background:linear-gradient(135deg,#fffdf8 0%,#f0f6ef 100%)}.hero-card:after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:linear-gradient(145deg,rgba(111,146,123,.20),rgba(200,215,168,.28));right:-90px;top:-70px}.hero-mark{position:absolute;right:34px;bottom:26px;font-size:96px;font-weight:950;color:rgba(23,63,49,.055);letter-spacing:-.08em}.dark{background:linear-gradient(155deg,var(--forest-950),var(--forest-800));color:#fff;border:none}.dark .mut{color:#c7d7ce}.ey{font-size:11px;font-weight:900;letter-spacing:.16em;text-transform:uppercase;color:var(--forest-700);margin-bottom:10px}.dark .ey{color:#bdd2c4}h1{font-family:Georgia,"Times New Roman",serif;font-size:54px;line-height:1.02;letter-spacing:-.035em;margin:14px 0 18px;max-width:720px}h2{font-size:28px;letter-spacing:-.025em;margin:8px 0 12px}h3{font-size:17px}.mut{color:var(--muted);line-height:1.65}.subhead{font-size:18px;max-width:650px}.feature-row{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}.mini{background:rgba(23,63,49,.06);color:var(--forest-800);padding:8px 10px;border-radius:999px;font-size:12px;font-weight:750;border:1px solid rgba(23,63,49,.06)}
.grid{display:grid;gap:14px}.g3{grid-template-columns:repeat(3,1fr)}.g4{grid-template-columns:repeat(4,1fr)}.stat{position:relative;overflow:hidden}.stat:before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:linear-gradient(var(--forest-700),var(--sage-400))}.stat b{font-size:30px;display:block;color:var(--forest-900);margin-top:5px}.stat span{font-size:12px;color:var(--muted)}.field{margin:11px 0}.field label{display:block;font-size:12px;font-weight:800;margin-bottom:6px}.field input,.field select{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:12px;background:var(--paper);outline:none}.field input:focus,.field select:focus{border-color:var(--sage-600);box-shadow:0 0 0 3px rgba(111,146,123,.13)}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.btn{border:0;border-radius:12px;padding:12px 16px;font-weight:800;cursor:pointer;transition:.18s transform,.18s box-shadow,.18s background}.btn:hover{transform:translateY(-1px)}.primary{background:linear-gradient(135deg,var(--forest-900),var(--forest-700));color:#fff;box-shadow:0 10px 20px rgba(23,63,49,.18)}.primary:hover{box-shadow:0 14px 26px rgba(23,63,49,.23)}.secondary{background:#fff;border:1px solid var(--line);color:var(--forest-900)}.actions{display:flex;gap:9px;flex-wrap:wrap;margin-top:17px}.pill{display:inline-flex;align-items:center;background:var(--mint-100);color:var(--forest-800);padding:6px 9px;border-radius:999px;font-size:11px;font-weight:850;border:1px solid var(--sage-200)}.alert{padding:12px 14px;border-radius:12px;margin:12px 0;background:var(--gold-bg);color:#6d511f;border:1px solid #ebddb7}.success{background:#e8f4ec;color:#176144;border-color:#c9e2d2}.error{background:var(--danger-bg);color:var(--danger);border-color:#efd0cd}
.test-shell{max-width:850px;margin:auto}.progress{height:8px;background:#e4ece6;border-radius:999px;overflow:hidden;margin:14px 0 20px}.progress > span{display:block;height:100%;background:linear-gradient(90deg,var(--forest-900),var(--sage-600),var(--lime-muted));border-radius:999px;transition:width .25s}.question-card{padding:32px}.qhead{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}.qmeta{display:flex;gap:7px;flex-wrap:wrap}.options{display:grid;gap:11px;margin-top:20px}.opt{padding:15px 16px;border:1px solid var(--line);border-radius:14px;background:#fff;text-align:left;cursor:pointer;color:var(--ink);font-weight:650;transition:.15s}.opt:hover:not(:disabled){border-color:var(--sage-600);background:#f5faf6;transform:translateY(-1px)}.opt.ok{background:#e7f4ea!important;border-color:#82b693!important;color:#14533a}.opt.bad{background:#fff1f0!important;border-color:#d99b96!important;color:#8e3434}.feedback{margin-top:18px;border-radius:16px;padding:18px;background:linear-gradient(145deg,#eff7f1,#fffdf8);border:1px solid var(--sage-200);animation:fade .2s ease}.feedback.wrong{background:linear-gradient(145deg,#fff3f1,#fffdf8);border-color:#efd0cd}.feedback-title{font-weight:900;font-size:17px;margin-bottom:8px}.explain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 16px;margin-top:12px}.explain-item{font-size:13px}.explain-item b{display:block;color:var(--forest-800);font-size:11px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:2px}.continue-row{display:flex;justify-content:flex-end;margin-top:15px}@keyframes fade{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.priority{min-height:180px;position:relative}.priority .rank{position:absolute;right:18px;top:14px;font-family:Georgia,serif;font-size:46px;color:rgba(23,63,49,.08);font-weight:900}.priority h3{margin-top:18px}.priority-meter{height:6px;background:#e5ece7;border-radius:99px;margin-top:18px;overflow:hidden}.priority-meter i{display:block;height:100%;background:linear-gradient(90deg,var(--forest-800),var(--sage-400));border-radius:99px}.section-title{display:flex;align-items:end;justify-content:space-between;gap:14px;margin:30px 0 14px}.section-title h2{margin:0}.account-grid{display:grid;grid-template-columns:1fr .65fr;gap:14px}table{width:100%;border-collapse:collapse}th,td{font-size:12px;text-align:left;padding:11px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:800}.footer-note{margin-top:28px;color:var(--muted);font-size:12px}
@media(max-width:800px){.hero,.g3,.g4,.formgrid,.account-grid,.explain-grid{grid-template-columns:1fr}.nav{display:none}.top{padding:10px 14px}.brand-name small{display:none}.hero-card{padding:30px;min-height:auto}h1{font-size:40px}.question-card{padding:22px}.lang button{padding:7px 8px}}

/* V3 learning architecture + gamification */
.learn-landing{max-width:1120px}
.learn-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:20px}
.learn-intro h1{font-size:42px;margin:6px 0 6px}
.breadcrumb{display:flex;gap:7px;align-items:center;flex-wrap:wrap;margin-bottom:16px;color:var(--muted);font-size:12px;font-weight:750}
.breadcrumb button{border:0;background:transparent;color:var(--forest-700);padding:0;cursor:pointer;font-weight:850}
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic-card{position:relative;min-height:150px;text-align:left;cursor:pointer;overflow:hidden;transition:.2s transform,.2s box-shadow,.2s border;background:linear-gradient(145deg,rgba(255,253,248,.98),rgba(239,247,241,.92));border:1px solid rgba(23,63,49,.10)}
.topic-card:hover{transform:translateY(-3px);box-shadow:0 22px 48px rgba(23,63,49,.14);border-color:var(--sage-400)}
.topic-card .topic-icon{width:48px;height:48px;border-radius:16px;display:grid;place-items:center;background:var(--forest-900);color:#fff;font-weight:900;font-size:20px;box-shadow:0 10px 24px rgba(23,63,49,.18)}
.topic-card h3{font-size:20px;margin:17px 0 6px}.topic-card p{font-size:13px;margin:0;max-width:85%}.topic-card .topic-no{position:absolute;right:18px;top:16px;font:900 42px Georgia,serif;color:rgba(23,63,49,.07)}
.level-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.level-card,.skill-card{cursor:pointer;transition:.2s transform,.2s border,.2s box-shadow;text-align:left}
.level-card:hover,.skill-card:hover{transform:translateY(-3px);border-color:var(--sage-400);box-shadow:0 18px 40px rgba(23,63,49,.12)}
.level-code{font:900 30px Georgia,serif;color:var(--forest-900);margin-bottom:9px}.level-desc{font-size:12px;color:var(--muted);line-height:1.45}
.skill-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.skill-card{min-height:185px;padding:20px}.skill-card.general{background:linear-gradient(145deg,var(--forest-950),var(--forest-700));color:#fff;border:none}.skill-card.general .mut{color:#d4e0d8}.skill-icon{font-size:24px;font-weight:900;color:var(--forest-700)}.skill-card.general .skill-icon{color:var(--lime-muted)}
.skill-card h3{margin:28px 0 7px;font-size:18px}.skill-card p{font-size:12px;line-height:1.55;margin:0}
.gamebar{position:sticky;top:83px;z-index:12;display:grid;grid-template-columns:1.3fr repeat(3,.7fr);gap:8px;margin:0 0 12px;background:rgba(247,244,236,.91);backdrop-filter:blur(14px);border:1px solid rgba(23,63,49,.08);border-radius:17px;padding:9px;box-shadow:0 9px 26px rgba(23,63,49,.08)}
.gamecell{padding:9px 12px;border-radius:12px;background:rgba(255,255,255,.7)}.gamecell span{display:block;font-size:10px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:850}.gamecell b{display:block;font-size:18px;color:var(--forest-900);margin-top:3px}
.combo-hot{background:linear-gradient(145deg,#fff8e8,#fffdf8)}.combo-hot b{color:#8c6424}
.unlock-track{height:7px;background:#e3ebe5;border-radius:99px;overflow:hidden;margin-top:7px}.unlock-track i{display:block;height:100%;background:linear-gradient(90deg,var(--forest-900),var(--sage-600),var(--lime-muted));border-radius:99px;transition:width .3s}
.session-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.session-badges{display:flex;gap:6px;flex-wrap:wrap}
.task-kicker{font-size:11px;font-weight:900;letter-spacing:.13em;text-transform:uppercase;color:var(--forest-700);margin-bottom:8px}
.context-box{background:#f1f6f2;border-left:4px solid var(--sage-600);padding:14px 16px;border-radius:4px 14px 14px 4px;margin:13px 0;color:#355247;line-height:1.6;font-size:14px}
.audio-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:14px 0}.accent{display:flex;background:#e7eee9;border-radius:10px;padding:3px}.accent button{border:0;background:transparent;border-radius:8px;padding:6px 8px;font-size:11px;font-weight:850;color:var(--muted);cursor:pointer}.accent button.active{background:#fff;color:var(--forest-900);box-shadow:0 2px 8px rgba(23,63,49,.08)}.voice-status{font-size:11px;color:var(--muted)}
.reward-line{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:11px}.xp-chip{background:#173f31;color:#fff;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900}.combo-chip{background:#fff4d6;color:#7f5c20;border-radius:999px;padding:6px 10px;font-size:12px;font-weight:900}
.complete-card{text-align:center;padding:42px}.complete-mark{width:84px;height:84px;border-radius:27px;margin:0 auto 18px;display:grid;place-items:center;background:linear-gradient(145deg,var(--forest-900),var(--sage-600));color:#fff;font:900 30px Georgia,serif;box-shadow:0 20px 42px rgba(23,63,49,.24)}.complete-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:24px 0}.complete-stats .card{box-shadow:none;padding:18px}.complete-stats b{font-size:28px;color:var(--forest-900)}
.sfx-toggle{border:1px solid rgba(23,63,49,.10);background:#fff;border-radius:11px;padding:8px 9px;color:var(--forest-800);font-size:11px;font-weight:900;cursor:pointer}
.reward-pop{position:fixed;left:50%;top:20%;transform:translate(-50%,0);z-index:100;color:#fff;background:var(--forest-900);border-radius:999px;padding:10px 16px;font-weight:900;box-shadow:0 18px 45px rgba(23,63,49,.25);animation:rewardPop .8s ease forwards;pointer-events:none}
.confetti{position:fixed;z-index:99;width:8px;height:8px;border-radius:2px;pointer-events:none;animation:confettiFly .9s ease-out forwards}
@keyframes rewardPop{0%{opacity:0;transform:translate(-50%,10px) scale(.85)}25%{opacity:1;transform:translate(-50%,0) scale(1)}100%{opacity:0;transform:translate(-50%,-30px) scale(1.05)}}
@keyframes confettiFly{0%{opacity:1;transform:translate(0,0) rotate(0)}100%{opacity:0;transform:translate(var(--dx),var(--dy)) rotate(320deg)}}
@media(max-width:980px){.level-grid,.skill-grid{grid-template-columns:repeat(2,1fr)}.gamebar{grid-template-columns:1fr 1fr}.topic-grid{grid-template-columns:1fr}}
@media(max-width:620px){.level-grid,.skill-grid,.gamebar,.complete-stats{grid-template-columns:1fr}.learn-intro{align-items:flex-start;flex-direction:column}.learn-intro h1{font-size:34px}.gamebar{position:relative;top:auto}}

/* V11 vocabulary-only extensions on the V8 visual system */
button{font:inherit}.primary,.secondary,.danger,.text-btn{border-radius:12px;padding:12px 16px;font-weight:800;cursor:pointer;transition:.18s transform,.18s box-shadow,.18s background}.primary{border:0;background:linear-gradient(135deg,var(--forest-900),var(--forest-700));color:#fff;box-shadow:0 10px 20px rgba(23,63,49,.18)}.primary:hover:not(:disabled),.secondary:hover:not(:disabled){transform:translateY(-1px)}.secondary{background:#fff;border:1px solid var(--line);color:var(--forest-900)}.danger{background:var(--danger-bg);border:1px solid #efd0cd;color:var(--danger)}.text-btn{border:0;background:transparent;color:var(--forest-700);box-shadow:none}.primary:disabled,.secondary:disabled,.card:disabled{opacity:.48;cursor:not-allowed;transform:none!important;box-shadow:none!important}.wide{width:100%}
.lang-switch{display:flex;gap:3px;background:var(--forest-900);padding:4px;border-radius:13px}.lang-switch button{border:0;background:transparent;color:#bdd0c4;padding:7px 9px;border-radius:9px;cursor:pointer;font-size:12px;font-weight:800}.lang-switch button.active{background:#fff;color:var(--forest-900)}
.login-top{position:relative}.auth-card h2{font-size:28px}.auth-card input{width:100%;padding:12px 13px;border:1px solid rgba(255,255,255,.18);border-radius:12px;background:rgba(255,255,255,.96);color:var(--ink);outline:none}.auth-card .secondary{background:#fff;color:var(--forest-900)}.auth-msg{min-height:22px;color:#dce9e0;font-size:12px;line-height:1.45}.onboard-wrap{min-height:100vh;display:grid;place-items:center;padding:28px;background:radial-gradient(circle at 15% 0%,#eef6ef 0,transparent 38%),linear-gradient(180deg,var(--ivory),#eef3ef)}.v8-onboard{max-width:760px;width:100%;padding:38px}.v8-onboard h1{font-size:44px}
.bottom-nav{display:none}.home-hero{margin-top:18px}.home-main{min-height:360px}.memory-card{padding:34px;display:flex;flex-direction:column;justify-content:center}.big-retention{font:900 72px Georgia,serif;line-height:1;color:#fff;margin:18px 0}.mini-dark{display:flex;justify-content:space-between;align-items:center;padding:13px 14px;border:1px solid rgba(255,255,255,.15);border-radius:14px;background:rgba(255,255,255,.06);margin-top:10px}.mini-dark b{font-size:24px}.priority{text-align:left;width:100%;cursor:pointer}.priority:disabled{cursor:not-allowed}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}.v11-lower{margin-top:20px}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:18px}.metric{background:var(--paper);border:1px solid rgba(23,63,49,.10);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.metric span{display:block;color:var(--muted);font-size:12px}.metric strong{display:block;color:var(--forest-900);font-size:30px;margin:6px 0}.metric small{color:var(--muted);font-size:11px}.page-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:18px}.page-head h1{font-size:42px;margin:6px 0}.eyebrow{font-size:11px;font-weight:900;letter-spacing:.16em;text-transform:uppercase;color:var(--forest-700)}.hero-number{font:900 58px Georgia,serif;color:var(--forest-900);margin:15px 0}.bars{display:grid;gap:12px}.bar-row{display:grid;grid-template-columns:130px 1fr 44px;align-items:center;gap:10px;font-size:12px}.bar{height:8px;background:#e5ece7;border-radius:99px;overflow:hidden}.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--forest-900),var(--sage-600),var(--lime-muted));border-radius:99px}.big-label{font-size:28px!important;color:var(--forest-900)!important;font-weight:900}.flow{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:14px}.flow span{background:var(--mint-100);border:1px solid var(--sage-200);padding:8px 10px;border-radius:10px;font-size:12px}.flow b{color:var(--sage-600)}.learning-method{margin-top:18px}.level-card small{display:block;color:var(--muted);line-height:1.4;margin-top:10px}.diag-card{min-height:310px}.breadcrumb b{color:var(--forest-900)}
.toolbar{display:flex;gap:10px;margin-bottom:16px}.toolbar input{flex:1}.toolbar input,.toolbar select,textarea,.answer-input{width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:12px;background:var(--paper);color:var(--ink);outline:none}.toolbar input:focus,.toolbar select:focus,textarea:focus,.answer-input:focus{border-color:var(--sage-600);box-shadow:0 0 0 3px rgba(111,146,123,.13)}.word-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.word-tile{border:1px solid var(--line);border-radius:14px;background:#fff;padding:14px;text-align:left;cursor:pointer;display:grid;gap:8px}.word-tile:hover{border-color:var(--sage-400);background:#f5faf6}.word-tile b,.word-tile small{display:block}.word-tile small{color:var(--muted);margin-top:2px}.state-dot{justify-self:start;font-size:10px;text-transform:uppercase;background:var(--mint-100);color:var(--forest-800);border-radius:999px;padding:4px 7px}.state-dot.weak{background:var(--gold-bg);color:#8a5b17}.word-meaning{font-size:13px;color:#4b5f56}.state-list{display:grid;gap:10px;margin-top:16px}.state-list>div{display:grid;grid-template-columns:1fr 70px 70px;padding:10px;border-bottom:1px solid var(--line)}.outcome{padding:4px 7px;border-radius:99px;font-size:11px}.outcome.correct{background:#e8f4ec;color:#176144}.outcome.incorrect{background:#fff1f0;color:#8e3434}.outcome.skipped{background:#f1f3f1;color:#68756f}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{font-size:12px;text-align:left;padding:11px;border-bottom:1px solid var(--line)}th{color:var(--muted);font-weight:800;background:#f7faf7}td small{display:block;color:var(--muted);margin-top:3px}
.session-shell{max-width:850px;margin:auto}.session-top{display:grid;grid-template-columns:120px 1fr 52px;align-items:center;gap:14px;margin-bottom:14px}.session-progress{display:flex;align-items:center;gap:10px}.session-progress>div{height:8px;background:#e4ece6;border-radius:999px;overflow:hidden;flex:1}.session-progress i{display:block;height:100%;background:linear-gradient(90deg,var(--forest-900),var(--sage-600),var(--lime-muted))}.task-card{background:rgba(255,253,248,.96);border:1px solid rgba(23,63,49,.10);border-radius:24px;padding:30px;box-shadow:var(--shadow);min-height:470px}.task-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px}.task-title{text-align:center;color:var(--forest-700);font-weight:850;font-size:13px;margin-top:18px}.word-hero{text-align:center;padding:34px 0 22px}.word-hero h1{font-size:50px;margin:0 0 10px}.ipa{color:#65756d}.audio-btn,.big-audio{border:1px solid var(--line);background:#fff;border-radius:11px;padding:7px 10px;cursor:pointer;color:var(--forest-900)}.big-audio{font-size:18px;padding:18px 22px}.reveal-block{background:linear-gradient(145deg,#eff7f1,#fffdf8);border:1px solid var(--sage-200);border-radius:16px;padding:18px}.meaning-main{font-size:20px;font-weight:850;color:var(--forest-900);margin-bottom:10px}.colloc-chips{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0}.colloc-chips span{background:var(--mint-100);color:var(--forest-800);border:1px solid var(--sage-200);border-radius:999px;padding:6px 9px;font-size:12px}.example{line-height:1.65;color:#3f574d}.example mark{background:#e4eebc;border-radius:4px;padding:0 2px}.learning-tip,.retrieval-prompt{color:var(--muted);line-height:1.6;text-align:center;margin:18px auto;max-width:620px}.prompt-box{font-size:22px;line-height:1.5;max-width:650px;margin:auto}.options{display:grid;gap:11px;margin-top:10px}.option{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:center;border:1px solid var(--line);background:#fff;border-radius:14px;padding:14px;text-align:left;cursor:pointer;color:var(--ink);font-weight:650}.option:hover{border-color:var(--sage-600);background:#f5faf6;transform:translateY(-1px)}.option span{width:28px;height:28px;border-radius:8px;background:var(--mint-100);display:grid;place-items:center;font-weight:900;color:var(--forest-800)}.answer-input{font-size:20px;margin-bottom:12px}.skip-btn{display:block;margin:14px auto 0}.recall-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.feedback-overlay,.modal-overlay{position:fixed;inset:0;background:rgba(15,43,34,.48);display:grid;place-items:center;padding:20px;z-index:100}.feedback-card,.modal{background:var(--paper);border-radius:22px;box-shadow:0 24px 70px rgba(15,43,34,.25);max-width:700px;width:100%;padding:26px;max-height:90vh;overflow:auto}.feedback-head{color:var(--danger);font-weight:900;margin-bottom:10px}.repair-note{background:var(--gold-bg);padding:10px;border-radius:10px;color:#7d5b24}.modal{position:relative}.modal-close{position:absolute;right:16px;top:14px;border:0;background:transparent;font-size:30px;color:var(--muted);cursor:pointer}.word-detail-head{display:flex;justify-content:space-between;gap:15px;align-items:center;margin:16px 0}.word-detail-head h1{font-size:42px;margin:0 0 5px}.save-toggle{border:1px solid var(--line);background:#fff;border-radius:10px;padding:9px 11px}.definition{font-size:14px}.family-list{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.family-list>div{border:1px solid var(--line);border-radius:12px;padding:11px}.family-list span{font-size:11px;color:var(--muted);margin-left:6px}.family-list p{margin:5px 0 0}.mini-memory{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}.mini-memory div{display:flex;justify-content:space-between;background:#f1f6f2;padding:9px;border-radius:10px;font-size:12px}.toast{position:fixed;left:50%;bottom:32px;transform:translate(-50%,18px);background:var(--forest-950);color:#fff;padding:10px 14px;border-radius:10px;opacity:0;pointer-events:none;transition:.2s;z-index:200}.toast.show{opacity:1;transform:translate(-50%,0)}.session-done{max-width:760px;margin:30px auto;text-align:center}.done-icon{width:68px;height:68px;border-radius:22px;display:grid;place-items:center;background:linear-gradient(145deg,var(--forest-900),var(--sage-600));color:#fff;font-size:32px;margin:0 auto 12px}.compact-metrics{margin-top:20px}.danger-zone{border-color:#efd0cd}.loading,.fatal{text-align:center;padding:40px}.fatal{min-height:100vh;display:grid;place-items:center}.account-grid{align-items:start}
.teacher-login{min-height:100vh;display:grid;place-items:center;padding:24px}.teacher-login .card{max-width:480px;width:100%}.teacher-login input{width:100%;padding:12px;border:1px solid var(--line);border-radius:11px;margin:7px 0}.teacher-main{padding:28px;max-width:1200px;margin:auto}.teacher-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:20px}.teacher-cols{align-items:start}.teacher-row{display:grid;grid-template-columns:1fr 80px 150px;gap:10px;padding:11px 0;border-bottom:1px solid var(--line);font-size:13px}.teacher-row small{color:var(--muted)}.question-card{border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px}.reply{background:#edf7f3;padding:8px;border-radius:8px}.error-box{background:var(--danger-bg);border:1px solid #efd0cd;padding:16px;border-radius:12px}
@media(max-width:1020px){.navwrap{gap:7px}.nav button{padding:8px 7px;font-size:11px}.sfx-toggle{display:none}.g4,.metric-grid{grid-template-columns:repeat(2,1fr)}.word-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:800px){body{padding-bottom:72px}.top{position:sticky}.nav{display:none}.ghost{display:none}.lang-switch button{padding:7px 8px}.bottom-nav{display:grid;grid-template-columns:repeat(6,1fr);position:fixed;bottom:0;left:0;right:0;background:rgba(255,253,248,.97);border-top:1px solid rgba(23,63,49,.12);z-index:40;padding-bottom:max(6px,env(safe-area-inset-bottom));box-shadow:0 -10px 30px rgba(23,63,49,.08)}.bottom-btn{border:0;background:transparent;color:var(--muted);display:grid;place-items:center;gap:2px;padding:8px 2px;font-size:10px}.bottom-btn.active{color:var(--forest-900);font-weight:900}.ico{font-size:17px}.hero,.g3,.g4,.formgrid,.account-grid,.two-col,.metric-grid{grid-template-columns:1fr}.home-hero{grid-template-columns:1fr}.memory-card{min-height:260px}.topic-grid{grid-template-columns:1fr}.level-grid{grid-template-columns:repeat(2,1fr)}.word-grid{grid-template-columns:repeat(2,1fr)}.page-head{align-items:flex-start}.page-head h1{font-size:36px}.session-top{grid-template-columns:80px 1fr 42px}.task-card{padding:21px;min-height:420px}.word-hero h1{font-size:40px}.family-list,.mini-memory{grid-template-columns:1fr}.v11-lower{grid-template-columns:1fr}.teacher-cols{grid-template-columns:1fr}.toolbar{flex-direction:column}}
@media(max-width:500px){main{padding:22px 14px 84px}.top{padding:9px 12px}.brand-name{font-size:14px}.lang-switch{margin-left:auto}.hero-card{padding:25px}.hero-card h1{font-size:36px}.big-retention{font-size:58px}.level-grid,.word-grid,.metric-grid{grid-template-columns:1fr}.word-hero h1{font-size:35px}.task-card{padding:17px}.session-top{grid-template-columns:62px 1fr 38px}.session-progress span{display:none}.recall-actions{grid-template-columns:1fr}.bar-row{grid-template-columns:105px 1fr 38px}.v8-onboard{padding:24px}.v8-onboard h1{font-size:34px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* V13 vocabulary reinforcement additions */
.voice-note{margin-top:8px;font-size:11px;color:var(--sage-600);font-weight:800;letter-spacing:.03em}
.task-support{display:flex;justify-content:flex-end;margin-top:14px;padding-top:12px;border-top:1px dashed var(--line)}
.pronunciation-hero{padding-bottom:10px}.pron-card,.listening-mini,.sentence-task{max-width:650px;margin:0 auto;background:linear-gradient(145deg,#eff7f1,#fffdf8);border:1px solid var(--sage-200);border-radius:18px;padding:20px;text-align:center}.pron-card p,.listening-mini p,.sentence-task p{line-height:1.6;color:#435a50}.mic-btn{border:0;border-radius:16px;background:linear-gradient(135deg,var(--forest-900),var(--forest-700));color:#fff;font-weight:900;padding:16px 22px;cursor:pointer;box-shadow:0 12px 26px rgba(23,63,49,.2);min-width:190px}.mic-btn:disabled{opacity:.6;cursor:wait}.pron-status{min-height:42px;margin:14px 0 6px;display:grid;gap:4px;place-items:center}.pron-status b{font-size:18px}.pron-status small{color:var(--muted)}.pron-status .bad{color:var(--danger)}
.listen-icon{width:58px;height:58px;border-radius:18px;background:var(--forest-900);color:#fff;display:grid;place-items:center;font-size:25px;margin:0 auto 12px}.gap-prompt{margin:16px auto 0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;font-size:17px;line-height:1.55;text-align:left}.reading-mini{max-width:680px;margin:26px auto 18px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;font-size:20px;line-height:1.7}.reading-mini mark{background:#e4eebc;border-radius:4px;padding:1px 3px}.sentence-task{text-align:left}.sentence-task .word-pill{display:inline-flex;background:var(--forest-900);color:#fff;border-radius:999px;padding:8px 12px;font-weight:900;margin-bottom:10px}.sentence-task textarea{margin:12px 0;min-height:120px;resize:vertical}
.question-history-card{margin-top:14px}.student-questions{display:grid;gap:10px}.student-questions article{border:1px solid var(--line);border-radius:14px;padding:13px;background:#fff}.student-questions article small{display:block;color:var(--muted);margin-top:2px}.student-questions article p{margin:8px 0;line-height:1.5}
.teacher-metrics{grid-template-columns:repeat(6,1fr)}.teacher-work{border:1px solid var(--line);border-radius:13px;padding:12px;margin-bottom:10px;background:#fff}.teacher-work small{display:block;color:var(--muted);margin-top:3px}.teacher-work p{line-height:1.55}.teacher-activity{display:grid;gap:6px}.teacher-activity>div{display:grid;grid-template-columns:1fr 110px 160px;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:9px 0}.teacher-activity small{color:var(--muted)}.teacher-activity span small{display:block}.teacher-mini{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.teacher-mini span{background:var(--mint-100);border:1px solid var(--sage-200);padding:7px 10px;border-radius:999px;font-size:12px}.question-cue{display:block;background:#f5f8f5;border-radius:8px;padding:7px;margin-top:7px;color:var(--muted)}
.outcome.submitted_ungraded{background:#eef0fb;color:#4c5594}
@media(max-width:1100px){.teacher-metrics{grid-template-columns:repeat(3,1fr)}}
@media(max-width:800px){.teacher-metrics{grid-template-columns:repeat(2,1fr)}.teacher-activity>div{grid-template-columns:1fr 90px}.teacher-activity>div>small:last-child{grid-column:1/-1}.reading-mini{font-size:17px}.pron-card,.listening-mini,.sentence-task{padding:16px}}
@media(max-width:500px){.teacher-metrics{grid-template-columns:1fr}.mic-btn{width:100%}.gap-prompt{font-size:15px}}
.memory-detail{border:1px solid var(--line);border-radius:13px;padding:0 13px;margin:9px 0;background:#fff}.memory-detail summary{cursor:pointer;display:flex;justify-content:space-between;gap:12px;padding:12px 0}.memory-detail summary span{color:var(--muted);font-size:12px}.memory-detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:0 0 13px}.memory-detail-grid>div{background:#f7faf7;border-radius:11px;padding:10px}.memory-detail-grid h4{margin:0 0 7px}.memory-detail-grid p{font-size:12px;line-height:1.5;margin:5px 0}
@media(max-width:800px){.memory-detail-grid{grid-template-columns:1fr}.memory-detail summary{display:grid}}


/* V13 American-English pronunciation assessment */
.pron-score{display:flex;align-items:center;justify-content:center;gap:14px;margin:10px auto 4px;padding:12px 16px;border-radius:14px;background:#f4f7f5;max-width:360px}.pron-score strong{font-size:34px;line-height:1}.pron-score.good{background:#e9f6ee;color:#1d6a3c}.pron-score.warn{background:#fff5dd;color:#8b6219}.pron-score.bad{background:#fff0ed;color:#a23e35}.pron-word{font-size:28px;font-weight:950;color:var(--forest-950);margin:8px 0}.phoneme-row{display:flex;flex-wrap:wrap;justify-content:center;gap:7px;margin:10px 0}.phoneme{min-width:48px;border:1px solid var(--line);border-radius:11px;padding:7px 8px;display:grid;gap:2px;background:#fff}.phoneme b{font-size:18px}.phoneme small{font-size:10px}.phoneme.good,.teacher-ph.good,.good{color:#216a42;border-color:#aed8bd;background:#edf8f1}.phoneme.warn,.teacher-ph.warn,.warn{color:#8a611a;border-color:#ead092;background:#fff8e7}.phoneme.bad,.teacher-ph.bad,.bad{color:#a13d34;border-color:#e8b0aa;background:#fff1ef}.phoneme-note{margin-top:8px;padding:8px 10px;border-radius:10px;font-size:12px}.teacher-phonemes{display:flex;flex-wrap:wrap;gap:5px;margin:8px 0}.teacher-ph{padding:4px 6px;border-radius:8px;border:1px solid;font-size:11px}.play-recording{margin-top:6px}