:root{color-scheme:dark;--bg:#090d18;--sidebar:#0d1220;--panel:#12192a;--panel2:#161f33;--line:#25304a;--line2:#33415f;--text:#f5f7ff;--muted:#8e9ab6;--lime:#d9fb7a;--lime2:#bdea57;--purple:#9c8cff;--good:#6ee7a8;--bad:#ff7b8f;--amber:#ffc86b;--shadow:0 18px 60px rgba(0,0,0,.22)}
*{box-sizing:border-box}html{min-height:100%}body{margin:0;min-height:100vh;background:radial-gradient(circle at 82% -15%,rgba(122,104,255,.18),transparent 34%),var(--bg);color:var(--text);font:15px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:inherit;text-decoration:none}button,input{font:inherit}.shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:248px;background:rgba(11,16,29,.94);border-right:1px solid var(--line);padding:26px 18px;display:flex;flex-direction:column;z-index:20;backdrop-filter:blur(18px)}.brand{display:flex;align-items:center;gap:9px;font-size:21px;font-weight:850;letter-spacing:-.6px;padding:0 8px}.mark{width:34px;height:34px;border-radius:10px;background:var(--lime);color:#14200f;display:grid;place-items:center;font-weight:900;transform:rotate(-6deg);box-shadow:0 8px 25px rgba(217,251,122,.14)}.badge{font-size:9px;letter-spacing:1px;color:var(--muted);border:1px solid var(--line2);border-radius:6px;padding:2px 6px;margin-left:2px}.side-nav{display:grid;gap:6px;margin-top:34px}.side-nav a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:11px;color:var(--muted);font-weight:650}.side-nav a:hover{background:#111a2c;color:var(--text)}.side-nav a.active{background:#182238;color:#fff}.nav-icon{width:25px;height:25px;display:grid;place-items:center;border-radius:8px;background:#11192a;color:#aeb8d1;font-size:12px;font-weight:900}.side-nav a.active .nav-icon{background:rgba(217,251,122,.12);color:var(--lime)}.sidebar-user{margin-top:auto;display:flex;align-items:center;gap:8px;border-top:1px solid var(--line);padding-top:18px}.user-card{display:flex;gap:10px;align-items:center;min-width:0;flex:1;padding:7px;border-radius:10px}.user-card:hover{background:#111a2c}.avatar{width:36px;height:36px;border-radius:11px;background:#202a42;display:grid;place-items:center;font-weight:850}.user-card span:last-child{min-width:0}.user-card b,.user-card small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-card small{font-size:11px;color:var(--muted);margin-top:1px}.icon-button{border:0;background:transparent;color:var(--muted);font-size:18px;padding:9px;border-radius:9px;cursor:pointer}.icon-button:hover{background:#172036;color:#fff}.content{margin-left:248px;min-height:100vh;padding:46px 32px 70px}.page-wrap{max-width:1080px;margin:0 auto}.narrow-page{max-width:850px}.eyebrow{display:block;color:var(--lime);font-size:10px;font-weight:850;letter-spacing:2.2px;margin:0 0 12px}.muted{color:var(--muted)}.small{font-size:12px}.spark{color:var(--lime)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(32px,4vw,49px);line-height:1.08;letter-spacing:-1.8px;margin-bottom:12px}h2{font-size:25px;line-height:1.2;letter-spacing:-.7px}.card{background:linear-gradient(145deg,rgba(21,29,48,.97),rgba(14,20,35,.97));border:1px solid var(--line);border-radius:19px;box-shadow:var(--shadow)}button,.button{cursor:pointer;border:0;border-radius:11px;font-weight:800;padding:12px 17px;display:inline-flex;align-items:center;justify-content:center;gap:8px}.primary{background:var(--lime);color:#11180e}.primary:hover{background:#e6ff9d}.ghost{background:#182137;color:#dce3f5;border:1px solid var(--line)}.ghost:hover{border-color:#43516f;background:#1b263e}.full{width:100%}.toast-banner{max-width:1080px;margin:0 auto 20px;border:1px solid rgba(110,231,168,.35);background:rgba(110,231,168,.08);padding:13px 16px;border-radius:12px}.toast-banner.danger{border-color:rgba(255,123,143,.4);background:rgba(255,123,143,.09)}
/* auth */.auth-main{min-height:100vh;display:grid;place-items:center;padding:42px 24px}.auth-layout{width:min(1050px,100%);display:grid;grid-template-columns:1.15fr .8fr;align-items:center;gap:80px}.auth-brand{padding:0;margin-bottom:70px}.auth-intro h1{font-size:55px}.auth-intro h1 em{font-style:normal;color:var(--purple)}.auth-intro>p:not(.eyebrow){color:var(--muted);font-size:16px;max-width:560px}.feature-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:25px}.feature-chips span{border:1px solid var(--line);background:#0e1423;padding:7px 10px;border-radius:999px;font-size:11px;color:#bac4db}.word-preview{margin-top:34px;border-left:3px solid var(--purple);padding:10px 18px}.word-preview small,.word-preview strong,.word-preview span{display:block}.word-preview small{color:var(--muted);font-size:11px}.word-preview strong{font-size:30px;margin:3px 0}.word-preview span{color:#bbb2ff}.auth-card{padding:26px}.tabs{display:flex;background:#0a1020;border:1px solid #111a2d;padding:4px;border-radius:10px;margin-bottom:24px}.tabs a{flex:1;text-align:center;padding:8px;border-radius:8px;color:var(--muted);font-size:12px}.tabs a.selected{background:#293149;color:#fff}.auth-form label{display:block;margin:16px 0 0;font-size:12px;font-weight:750;color:#dbe2f2}.auth-form input{display:block;width:100%;margin-top:7px;background:#0b1222;border:1px solid #2b3650;color:#fff;border-radius:10px;padding:12px 13px;outline:none}.auth-form input:focus{border-color:#6a789e;box-shadow:0 0 0 3px rgba(110,125,165,.12)}.auth-form button{margin-top:20px}
/* home */.welcome-row{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.welcome-row p:last-child{margin-bottom:0}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}.metric-card{background:#11192a;border:1px solid var(--line);border-radius:16px;padding:19px 20px}.metric-card span,.metric-card small{display:block;color:var(--muted)}.metric-card span{font-size:11px}.metric-card strong{display:block;font-size:31px;line-height:1.25;margin:6px 0 2px}.metric-card small{font-size:10px}.hero-card{padding:34px 36px;display:flex;justify-content:space-between;align-items:center;gap:25px;min-height:230px;background:radial-gradient(circle at 86% 20%,rgba(156,140,255,.17),transparent 35%),linear-gradient(145deg,#162039,#11182a)}.hero-copy{max-width:630px}.hero-kicker{font-size:10px;letter-spacing:2px;color:var(--lime);font-weight:900}.hero-copy h2{font-size:29px;margin:11px 0}.hero-copy p{color:var(--muted);max-width:600px}.hero-actions{display:flex;gap:10px;margin-top:23px}.hero-visual{text-align:center;min-width:190px}.word-orbit{width:130px;height:130px;margin:auto;border-radius:50%;border:1px solid #334160;display:grid;place-items:center;background:radial-gradient(circle,rgba(156,140,255,.18),transparent 63%);position:relative}.word-orbit:before,.word-orbit:after{content:"";position:absolute;border:1px solid rgba(217,251,122,.18);border-radius:50%}.word-orbit:before{inset:12px}.word-orbit:after{inset:28px}.word-orbit span{font-size:46px;color:var(--purple);font-weight:900;letter-spacing:-4px}.hero-visual small{display:block;color:var(--muted);font-size:10px;margin-top:13px}.quick-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}.quick-card{display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center;background:#101827;border:1px solid var(--line);border-radius:15px;padding:16px}.quick-card:hover{border-color:#3a4969;background:#131d30}.quick-icon{width:39px;height:39px;display:grid;place-items:center;border-radius:11px;font-weight:900}.danger-icon{background:rgba(255,123,143,.09);color:var(--bad)}.star-icon{background:rgba(255,200,107,.09);color:var(--amber)}.history-icon{background:rgba(156,140,255,.10);color:var(--purple)}.quick-card span,.quick-card strong,.quick-card small{display:block}.quick-card span{font-size:10px;color:var(--muted)}.quick-card strong{font-size:15px;margin:1px 0}.quick-card small{font-size:10px;color:#7f8ba5}.quick-card>b{color:#7885a3}
/* setup */.page-title{margin-bottom:25px}.setup-panel{padding:28px}.setup-section+.setup-section{border-top:1px solid var(--line);padding-top:24px;margin-top:24px}.setup-label{display:block;font-size:11px;color:var(--muted);font-weight:800;margin-bottom:12px}.segmented-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}.segmented-cards.five{grid-template-columns:repeat(5,1fr)}.select-card{position:relative;cursor:pointer}.select-card input{position:absolute;opacity:0;pointer-events:none}.select-card span{display:block;border:1px solid var(--line);background:#0d1525;border-radius:12px;padding:14px;height:100%}.select-card b,.select-card small{display:block}.select-card b{font-size:13px}.select-card small{font-size:10px;color:var(--muted);margin-top:3px}.select-card input:checked+span{border-color:#7f9360;background:rgba(217,251,122,.07);box-shadow:inset 0 0 0 1px rgba(217,251,122,.12)}.select-card input:checked+span b{color:var(--lime)}.count-pills{display:flex;gap:9px}.count-pills label{cursor:pointer}.count-pills input{position:absolute;opacity:0}.count-pills span{display:grid;place-items:center;min-width:60px;padding:9px;border:1px solid var(--line);border-radius:10px;background:#0d1525;font-weight:800}.count-pills input:checked+span{background:var(--lime);color:#11180e;border-color:var(--lime)}.setup-submit{width:100%;margin-top:28px}
/* quiz */.quiz-page{max-width:900px;margin:0 auto}.quiz-stage{max-width:780px;margin:0 auto}.quiz-header{display:flex;justify-content:space-between;align-items:end;margin-bottom:13px}.quiz-counter{display:flex;align-items:baseline;gap:7px}.quiz-counter strong{font-size:41px;line-height:1}.quiz-counter span{font-size:18px;color:var(--muted)}.exit-link{font-size:11px;color:var(--muted);padding:8px}.exit-link:hover{color:#fff}.progress-track{height:5px;background:#1d273c;border-radius:999px;overflow:hidden;margin-bottom:18px}.progress-track span{display:block;height:100%;background:linear-gradient(90deg,var(--lime),var(--purple));transition:width .25s ease}.question-card{padding:28px 30px;min-height:470px;display:flex;flex-direction:column}.question-meta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:11px}.favorite-top{width:37px;height:37px;padding:0;border:1px solid var(--line);border-radius:10px;background:#0f1728;color:#8e99b3;font-size:20px}.favorite-top.active{color:var(--amber);border-color:rgba(255,200,107,.35);background:rgba(255,200,107,.06)}.question-card>h1{font-size:clamp(28px,4vw,42px);margin:22px 0 27px;line-height:1.22;letter-spacing:-1.1px}.answer-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px}.answer-choice{position:relative;text-align:left;justify-content:flex-start;padding:15px 16px;border:1px solid #2d3954;background:#0d1525;color:#f0f3fb;border-radius:12px;font-weight:650;min-height:55px}.answer-choice:hover:not(:disabled){border-color:#4c5d82;background:#121d31}.answer-choice .letter{width:27px;height:27px;display:grid;place-items:center;border:1px solid #33415e;border-radius:8px;color:#93a0bd;font-size:10px;margin-right:7px;flex-shrink:0}.answer-choice.correct{border-color:rgba(110,231,168,.65);background:rgba(110,231,168,.09);color:#eafff2}.answer-choice.correct .letter{border-color:rgba(110,231,168,.55);color:var(--good);background:rgba(110,231,168,.08)}.answer-choice.wrong{border-color:rgba(255,123,143,.65);background:rgba(255,123,143,.09)}.answer-choice.wrong .letter{border-color:rgba(255,123,143,.55);color:var(--bad)}.answer-choice.dimmed{opacity:.46}.answer-choice:disabled{cursor:default}.feedback-panel{margin-top:18px;border-radius:13px;border:1px solid var(--line);background:#0d1524;padding:16px 17px}.feedback-panel.good{border-color:rgba(110,231,168,.32);background:rgba(110,231,168,.055)}.feedback-panel.bad{border-color:rgba(255,123,143,.32);background:rgba(255,123,143,.055)}.feedback-head{display:flex;align-items:center;gap:9px;font-weight:850;margin-bottom:11px}.feedback-head .feedback-icon{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;font-size:12px}.feedback-panel.good .feedback-icon{background:rgba(110,231,168,.12);color:var(--good)}.feedback-panel.bad .feedback-icon{background:rgba(255,123,143,.12);color:var(--bad)}.feedback-word{display:grid;grid-template-columns:1.1fr 1fr 1fr;gap:12px}.feedback-item{border-left:1px solid var(--line);padding-left:12px}.feedback-item:first-child{border-left:0;padding-left:0}.feedback-item span,.feedback-item b{display:block}.feedback-item span{font-size:9px;text-transform:uppercase;letter-spacing:1px;color:var(--muted);margin-bottom:2px}.feedback-item b{font-size:13px}.quiz-footer{margin-top:auto;padding-top:21px;display:flex;justify-content:space-between;align-items:center;gap:16px}.keyboard-hint{font-size:10px;color:#66738e}.next-button{min-width:150px}.quiz-footer form{margin:0}
/* lists */.list-page-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:25px}.list-page-head h1{margin-bottom:8px}.word-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.word-card{padding:18px;min-width:0}.word-card-top{display:flex;justify-content:space-between;align-items:center}.word-category{font-size:9px;color:#95a1bb;text-transform:uppercase;letter-spacing:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:75%}.star-button{border:0;background:transparent;color:#78849f;padding:2px 5px;font-size:20px}.star-button:hover,.star-button.active{color:var(--amber)}.word-card h2{font-size:22px;margin:15px 0 2px;word-break:break-word}.translation{color:#d5dded;min-height:45px;margin-bottom:13px;word-break:break-word}.synonym-line{display:flex;justify-content:space-between;gap:10px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:10px 0;font-size:11px}.synonym-line span{color:var(--muted)}.synonym-line b{text-align:right;word-break:break-word}.word-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:13px}.word-stats span{font-size:9px;color:var(--muted)}.word-stats b{display:block;color:#e5eaf5;font-size:13px}.word-stats .wrong-stat b{color:var(--bad)}.empty-state{padding:60px 30px;text-align:center}.empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:16px;display:grid;place-items:center;background:#182239;color:var(--lime);font-size:25px}.empty-state p{color:var(--muted);margin-bottom:22px}
/* result/history/account */.result-hero{text-align:center;padding:30px 0 20px}.result-badge{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(110,231,168,.08);color:var(--good);font-size:9px;font-weight:900;letter-spacing:1.4px}.result-hero h1{font-size:72px;margin:16px 0 4px}.result-hero p{color:var(--muted)}.result-actions{display:flex;justify-content:center;gap:9px;margin-top:20px}.section-heading{margin-top:28px}.result-list{display:grid;gap:9px}.result-row{display:grid;grid-template-columns:auto auto 1fr;gap:12px;align-items:start;padding:16px}.result-index{font-size:10px;color:var(--muted);padding-top:4px}.result-status{font-size:16px;font-weight:900}.good{color:var(--good)}.bad{color:var(--bad)}.result-row strong{font-size:14px}.result-row p,.result-row small{color:var(--muted);font-size:11px;margin:4px 0 0}.history-list{padding:6px 20px}.history-row{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:15px 3px;border-bottom:1px solid var(--line)}.history-row:last-child{border-bottom:0}.history-score{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;background:#182239;color:var(--lime);font-size:12px;font-weight:850}.history-row small{display:block;color:var(--muted);font-size:10px;margin-top:2px}.history-result{color:#aab5ca;font-size:12px}.pager{display:flex;justify-content:space-between;margin-top:20px;font-size:12px;color:var(--muted)}.account-card{padding:25px}
@media(max-width:1100px){.sidebar{width:210px}.content{margin-left:210px}.metric-grid{grid-template-columns:repeat(2,1fr)}.segmented-cards.five{grid-template-columns:repeat(3,1fr)}.word-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:780px){.sidebar{position:fixed;inset:auto 12px 12px 12px;width:auto;height:64px;padding:7px;border:1px solid var(--line);border-radius:17px;flex-direction:row;align-items:center;box-shadow:0 18px 50px rgba(0,0,0,.45)}.sidebar>.brand,.sidebar-user{display:none}.side-nav{margin:0;display:grid;grid-template-columns:repeat(5,1fr);width:100%;gap:3px}.side-nav a{justify-content:center;padding:8px 4px;gap:0;border-radius:11px}.side-nav a span:last-child{display:none}.nav-icon{background:transparent;font-size:15px}.side-nav a.active .nav-icon{background:rgba(217,251,122,.1)}.content{margin-left:0;padding:28px 16px 100px}.auth-main{padding:22px 16px}.auth-layout{grid-template-columns:1fr;gap:28px}.auth-intro{display:none}.auth-card{max-width:480px;width:100%;margin:auto}.metric-grid{grid-template-columns:1fr 1fr;gap:9px}.metric-card{padding:15px}.hero-card{padding:25px}.hero-visual{display:none}.quick-cards{grid-template-columns:1fr}.desktop-action{display:none}.segmented-cards,.segmented-cards.five{grid-template-columns:1fr 1fr}.question-card{padding:22px 18px;min-height:520px}.answer-grid{grid-template-columns:1fr}.feedback-word{grid-template-columns:1fr}.feedback-item{border-left:0;border-top:1px solid var(--line);padding:8px 0 0}.feedback-item:first-child{border-top:0;padding-top:0}.quiz-footer{align-items:stretch;flex-direction:column}.keyboard-hint{display:none}.next-button,.quiz-footer form,.quiz-footer form button{width:100%}.word-grid{grid-template-columns:1fr}.list-page-head{align-items:stretch;flex-direction:column}.list-page-head form,.list-page-head button{width:100%}.result-hero h1{font-size:58px}}
@media(max-width:480px){h1{font-size:34px}.welcome-row{align-items:start}.metric-grid{grid-template-columns:1fr 1fr}.metric-card strong{font-size:25px}.metric-card small{display:none}.hero-actions{flex-direction:column}.hero-actions .button{width:100%}.segmented-cards,.segmented-cards.five{grid-template-columns:1fr}.count-pills{display:grid;grid-template-columns:repeat(4,1fr)}.count-pills span{min-width:0}.question-card>h1{font-size:29px}.quiz-counter strong{font-size:35px}.word-stats{gap:2px}}


/* v4 cleanup */
.brand .badge{display:none!important}
.auth-intro>p,.feature-chips{display:none!important}
.auth-intro h1{margin-top:28px}
.welcome-row{align-items:center}
.welcome-row h1{margin:0}
.compact-metrics .metric-card{min-height:104px}
.compact-metrics .metric-card small{display:none}
.clean-hero{min-height:0;padding:28px 32px}
.clean-hero .hero-copy{max-width:none}
.clean-hero .hero-copy h2{margin:0 0 18px}
.clean-hero .hero-visual,.clean-hero p,.clean-hero .hero-kicker{display:none!important}
.inline-form{display:inline-flex;margin:0}
.clean-quick .quick-card small{display:none}
.clean-quick .quick-card strong{font-size:22px}
.segmented-cards.four{grid-template-columns:repeat(4,minmax(0,1fr))}
.setup-label{font-weight:700;color:var(--muted)}
.question-card{padding-bottom:26px}
.quiz-footer{justify-content:flex-end}
.quiz-footer>span:empty{display:none}
.example-box{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);display:grid;gap:10px}
.example-box>div{display:grid;grid-template-columns:34px 1fr;gap:10px;align-items:start}
.example-box span,.result-example span{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--muted)}
.example-box p{margin:0;line-height:1.55;color:var(--text)}
.result-example{margin-top:10px;line-height:1.6;color:var(--muted)}
.word-card-actions{justify-content:flex-end;min-height:28px}
.word-card .word-category{display:none!important}
.list-page-head{align-items:center}
.list-page-head h1{margin:0}
.empty-state p{display:none}
@media(max-width:900px){
  .segmented-cards.four{grid-template-columns:1fr 1fr}
  .clean-hero{padding:24px}
}
@media(max-width:600px){
  .segmented-cards.four{grid-template-columns:1fr}
  .example-box>div{grid-template-columns:28px 1fr}
}

/* v5.1 answer learning + Tureng */
.answer-choice{align-items:flex-start}
.answer-copy{display:flex;flex-direction:column;gap:4px;min-width:0}
.answer-main{display:block}
.answer-meaning{display:block;font-size:11px;font-weight:600;color:#9eabc4;line-height:1.35}
.answer-meaning[hidden]{display:none!important}
.answer-choice.correct .answer-meaning{color:#b8f4d3}
.answer-choice.wrong .answer-meaning{color:#ffb4c0}
.answer-choice.dimmed .answer-meaning{color:#a8b0c1}
.feedback-actions{display:flex;justify-content:flex-end;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}
.tureng-link{display:inline-flex;align-items:center;gap:7px;padding:9px 12px;border:1px solid #33415e;border-radius:10px;background:#0d1525;color:#dce4f4;font-size:12px;font-weight:750;text-decoration:none}
.tureng-link:hover{border-color:#56698f;background:#121d31;color:#fff}
.tureng-link span{font-size:13px}