:root{
  --beige:#F2EDE4;--beige-dark:#E5DDD0;--dark:#2A2A2A;--mid:#666;--light:#AAA;--white:#FFF;
  --green:#4CAF7D;--red:#E85A4F;--blue:#4A90D9;--purple:#8B5CF6;--orange:#E8623A;
  --a1:#4CAF7D;--a2:#4A90D9;--b1:#E8623A;--b2:#8B5CF6;--c1:#0891B2;--c2:#BE185D;
  --shadow:0 3px 16px rgba(0,0,0,0.08);
}
body.dark{
  --beige:#0f0f1a;--beige-dark:#1c1c2e;--white:#1a1a2c;--dark:#ddddf0;--mid:#8080a8;--light:#50506a;
  --shadow:0 3px 16px rgba(0,0,0,0.4);
}
body.dark .topbar{background:#08081a;}
body.dark .xp-card{background:#1a1a2c;border:1px solid rgba(255,255,255,.07);}
body.dark .achs-stats{background:#08081a;}
body.dark .loading-box{background:#1a1a2c;color:var(--dark);}
body.dark .write-input{background:#1a1a2c;color:var(--dark);border-color:rgba(255,255,255,.15);}
body.dark .write-input.correct{background:#0d2a1a;}
body.dark .write-input.wrong{background:#2a0d0d;}
body.dark .sel-ctrl{background:#1c1c2e;color:var(--dark);}
body.dark .gg-box{background:#08081a;}
body.dark .search-overlay{background:var(--beige);}
body.dark .search-top{background:var(--white);}
body.dark .sr-item{background:var(--white);}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent;user-select:none;}
body{font-family:'Nunito',sans-serif;background:var(--beige);color:var(--dark);max-width:480px;margin:0 auto;overflow-x:hidden;min-height:100vh;transition:background .3s,color .3s;}
.screen{display:none;flex-direction:column;min-height:100vh;padding-bottom:70px;}
.screen.active{display:flex;}

/* TOPBAR */
.topbar{position:fixed;top:0;left:50%;transform:translateX(-50%);width:100%;max-width:480px;background:var(--dark);color:#fff;padding:0 16px;height:50px;display:flex;align-items:center;justify-content:space-between;z-index:9999;}
.tb-logo{font-size:16px;font-weight:900;}
.tb-right{display:flex;align-items:center;gap:10px;}
.tb-xp{background:rgba(255,255,255,.12);border-radius:20px;padding:4px 10px;font-size:12px;font-weight:800;display:flex;align-items:center;gap:4px;}
.tb-streak{background:rgba(255,255,255,.12);border-radius:20px;padding:4px 10px;font-size:12px;font-weight:800;display:flex;align-items:center;gap:3px;}
.tb-streak.on-fire{background:rgba(232,98,58,.3);}
.tb-user{font-size:13px;font-weight:700;opacity:.75;cursor:pointer;}

/* GUEST BANNER */
.guest-banner{background:linear-gradient(135deg,#1A1A2E,#2d1b69);color:#fff;padding:10px 16px;margin:50px 0 0;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.gb-text{font-size:12px;font-weight:700;line-height:1.4;}
.gb-btn{background:var(--green);border:none;border-radius:10px;padding:7px 14px;font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;color:#fff;cursor:pointer;white-space:nowrap;flex-shrink:0;}

/* HOME */
.home-top{padding:60px 16px 0;display:flex;align-items:center;justify-content:space-between;}
.home-greeting{font-size:18px;font-weight:900;}
.icon-btn{width:40px;height:40px;border-radius:50%;border:2px solid var(--beige-dark);background:var(--white);display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;}

/* STATUS BAR (compact) */
.status-bar{display:flex;gap:6px;margin:10px 16px 0;}
.status-pill{flex:1;background:var(--white);border-radius:14px;padding:10px 8px;box-shadow:var(--shadow);text-align:center;cursor:pointer;transition:transform .15s;}
.status-pill:active{transform:scale(.96);}
.sp-icon{font-size:16px;display:block;margin-bottom:2px;}
.sp-val{font-size:16px;font-weight:900;display:block;line-height:1.2;}
.sp-label{font-size:9px;font-weight:700;color:var(--mid);text-transform:uppercase;display:block;margin-top:1px;}
.sp-streak .sp-val{color:var(--orange);}
.sp-xp .sp-val{color:var(--green);}
.sp-daily .sp-val{color:var(--blue);}
.sp-daily.done{background:rgba(76,175,125,.1);border:1.5px solid rgba(76,175,125,.3);}
.sp-daily.done .sp-val{color:var(--green);}
.sp-level .sp-val{color:var(--purple);font-size:14px;}

/* CONTINUE BANNER */
.continue-banner{margin:10px 16px 0;background:linear-gradient(135deg,#1a1a2e,#2d2d44);border-radius:16px;padding:14px 16px;display:flex;align-items:center;gap:12px;cursor:pointer;border:1.5px solid rgba(255,255,255,.08);}
.cb-icon{font-size:24px;}
.cb-text{flex:1;}.cb-title{font-size:13px;font-weight:900;color:#fff;margin-bottom:2px;}
.cb-sub{font-size:11px;color:rgba(255,255,255,.5);font-weight:700;}
.cb-arr{font-size:18px;color:rgba(255,255,255,.4);}

/* QUICK ACTIONS ROW */
.quick-actions{display:flex;gap:8px;margin:10px 16px 0;}
.qa-card{flex:1;background:var(--white);border-radius:14px;padding:10px;box-shadow:var(--shadow);cursor:pointer;display:flex;align-items:center;gap:8px;transition:transform .15s;}
.qa-card:active{transform:scale(.97);}
.qa-icon{font-size:18px;flex-shrink:0;}
.qa-text{flex:1;min-width:0;}
.qa-title{font-size:11px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.qa-sub{font-size:10px;color:var(--mid);font-weight:700;}
.qa-badge{min-width:22px;height:22px;border-radius:11px;background:var(--purple);color:#fff;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center;padding:0 6px;flex-shrink:0;}

/* XP / DAILY CARD (legacy — kept for stats/other screens) */
.xp-card{margin:14px 16px 0;background:var(--dark);border-radius:20px;padding:16px;color:#fff;display:flex;gap:12px;}
.xp-left{flex:1;}
.xp-level-row{display:flex;align-items:center;gap:8px;margin-bottom:4px;}
.xp-level-icon{font-size:18px;}
.xp-level-name{font-size:13px;font-weight:800;}
.xp-num{font-size:24px;font-weight:900;color:var(--green);}
.xp-label{font-size:11px;opacity:.6;margin-top:1px;}
.xp-bar-wrap{margin-top:8px;}
.xp-bar{height:4px;background:rgba(255,255,255,.15);border-radius:2px;overflow:hidden;}
.xp-bar-fill{height:100%;background:var(--green);border-radius:2px;transition:width .6s;}
.xp-bar-label{font-size:10px;opacity:.5;margin-top:3px;}
.xp-divider{width:1px;background:rgba(255,255,255,.1);margin:0 4px;}
.xp-right{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;}
.streak-big{font-size:32px;font-weight:900;color:var(--orange);line-height:1;}
.streak-label{font-size:10px;opacity:.6;}
.daily-wrap{margin:10px 16px 0;background:var(--white);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;}
.daily-icon{font-size:20px;}
.daily-text{flex:1;}
.daily-title{font-size:13px;font-weight:800;}
.daily-sub{font-size:11px;color:var(--mid);}
.daily-bar-wrap{margin-top:4px;display:flex;align-items:center;gap:8px;}
.daily-bar{flex:1;height:5px;border-radius:3px;background:var(--beige-dark);overflow:hidden;}
.daily-bar-fill{height:100%;border-radius:3px;background:var(--green);transition:width .4s;}
.daily-pct{font-size:11px;font-weight:700;color:var(--green);}
.daily-done-badge{background:#E8F5EE;color:var(--green);border-radius:20px;padding:4px 10px;font-size:11px;font-weight:800;}

/* TABS */
.sec-label{padding:4px 20px;font-size:11px;font-weight:800;color:var(--mid);text-transform:uppercase;letter-spacing:.8px;margin-top:14px;}
.level-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;padding:8px 16px 0;}
.level-tab{border:2px solid var(--beige-dark);border-radius:14px;padding:10px 6px;background:var(--white);font-family:'Nunito',sans-serif;cursor:pointer;transition:all .18s;text-align:center;}
.lt-badge{font-size:15px;font-weight:900;display:block;margin-bottom:2px;}
.lt-name{font-size:10px;font-weight:800;color:var(--mid);display:block;line-height:1.3;}
.lt-a1.active{background:var(--a1);border-color:var(--a1);}.lt-a1.active .lt-badge,.lt-a1.active .lt-name{color:#fff;}
.lt-a2.active{background:var(--a2);border-color:var(--a2);}.lt-a2.active .lt-badge,.lt-a2.active .lt-name{color:#fff;}
.lt-b1.active{background:var(--b1);border-color:var(--b1);}.lt-b1.active .lt-badge,.lt-b1.active .lt-name{color:#fff;}
.lt-b2.active{background:var(--b2);border-color:var(--b2);}.lt-b2.active .lt-badge,.lt-b2.active .lt-name{color:#fff;}
.lt-c1.active{background:var(--c1);border-color:var(--c1);}.lt-c1.active .lt-badge,.lt-c1.active .lt-name{color:#fff;}
.lt-c2.active{background:var(--c2);border-color:var(--c2);}.lt-c2.active .lt-badge,.lt-c2.active .lt-name{color:#fff;}
/* GRAMMAR */
#grammar-screen{background:var(--beige);}
#cloze-screen,#attention-text-screen,#attention-audio-screen{background:var(--beige);}
.cloze-gap{display:inline-block;min-width:80px;border-bottom:3px solid var(--orange);padding:2px 8px;margin:0 2px;text-align:center;font-weight:800;color:var(--orange);cursor:pointer;border-radius:4px;background:rgba(232,98,58,.08);transition:all .2s;}
.cloze-gap.active{box-shadow:0 0 0 3px var(--orange);animation:cloze-pulse 1.5s ease-in-out infinite;background:rgba(232,98,58,.15);}
@keyframes cloze-pulse{0%,100%{box-shadow:0 0 0 3px var(--orange);}50%{box-shadow:0 0 0 6px rgba(232,98,58,.3);}}
.cloze-gap.filled{background:rgba(76,175,125,.12);border-color:#4CAF7D;color:#2e7d57;}
.cloze-gap.wrong{background:rgba(232,90,79,.12);border-color:#E85A4F;color:#E85A4F;}
.cloze-gap.correct{background:rgba(76,175,125,.2);border-color:#4CAF7D;color:#2e7d57;}
.cloze-opt{display:inline-block;padding:8px 14px;border-radius:10px;border:2px solid var(--border);background:var(--white);font-family:'Nunito',sans-serif;font-size:14px;font-weight:700;cursor:pointer;transition:all .15s;color:var(--dark);}
.cloze-opt:hover{border-color:var(--orange);background:rgba(232,98,58,.06);}
.cloze-opt.used{opacity:.35;pointer-events:none;text-decoration:line-through;}
.cloze-opt.distractor{border-color:#E85A4F;color:#E85A4F;opacity:.5;}
.gr-sentence{font-size:19px;font-weight:800;color:var(--dark);line-height:1.6;text-align:center;padding:8px 0;margin-bottom:16px;}
.gr-blank{display:inline-block;min-width:80px;border-bottom:3px solid var(--green);color:var(--green);font-style:italic;padding:0 4px;}
.gr-opts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px;}
.gr-opt{background:var(--white);border:2px solid var(--beige-dark);border-radius:14px;padding:14px 10px;font-family:'Nunito',sans-serif;font-size:15px;font-weight:800;cursor:pointer;transition:all .15s;text-align:center;color:var(--dark);}
.gr-opt:active{transform:scale(.97);}
.gr-opt.correct{background:#E8F5EE;border-color:var(--green);color:var(--green);}
.gr-opt.wrong{background:#FDECEA;border-color:var(--red);color:var(--red);}
.gr-opt.disabled{cursor:default;opacity:.6;}
.gr-hint-btn{background:none;border:1.5px solid var(--beige-dark);border-radius:10px;padding:7px 14px;font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;color:var(--mid);cursor:pointer;}
.gr-hint{background:rgba(74,144,217,.08);border:1px solid rgba(74,144,217,.2);border-radius:12px;padding:10px 14px;font-size:13px;color:#4A90D9;font-weight:700;margin-top:8px;display:none;}
.gr-expl{background:rgba(76,175,125,.08);border:1px solid rgba(76,175,125,.2);border-radius:12px;padding:10px 14px;font-size:13px;color:var(--green);font-weight:700;margin-top:8px;line-height:1.5;display:none;}

/* LEVEL CARD */
.level-card{margin:10px 16px 0;border-radius:18px;padding:16px 18px;color:#fff;}
.lc-a1{background:linear-gradient(135deg,#4CAF7D,#2e7d57);}
.lc-a2{background:linear-gradient(135deg,#4A90D9,#2c5f9a);}
.lc-b1{background:linear-gradient(135deg,#E8623A,#b54422);}
.lc-b2{background:linear-gradient(135deg,#8B5CF6,#5b33c1);}
.lc-c1{background:linear-gradient(135deg,#0891B2,#065f7a);}
.lc-c2{background:linear-gradient(135deg,#BE185D,#7f0f3e);}
.lc-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:6px;}
.lc-badge{font-size:22px;font-weight:900;}
.lc-right{text-align:right;font-size:11px;opacity:.8;}
.lc-name{font-size:14px;font-weight:800;margin-bottom:2px;}
.lc-desc{font-size:11px;opacity:.8;margin-bottom:8px;}
.lc-stats{display:flex;gap:12px;font-size:11px;font-weight:700;opacity:.85;flex-wrap:wrap;}
.lc-bar{height:4px;border-radius:2px;background:rgba(255,255,255,.25);overflow:hidden;margin-top:8px;}
.lc-bar-fill{height:100%;background:rgba(255,255,255,.75);border-radius:2px;transition:width .5s;}

/* TOPICS */
.topics-wrap{padding:8px 14px;display:flex;flex-direction:column;gap:10px;padding-bottom:80px;}
.tc{background:var(--white);border-radius:18px;padding:14px;box-shadow:var(--shadow);cursor:pointer;display:flex;gap:12px;align-items:center;transition:transform .18s;}
.tc:active{transform:scale(.98);}
.tc-icon{width:44px;height:44px;border-radius:13px;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:20px;}
.bg-a1{background:rgba(76,175,125,.12);}
.bg-a2{background:rgba(74,144,217,.12);}
.bg-b1{background:rgba(232,98,58,.12);}
.bg-b2{background:rgba(139,92,246,.12);}
.bg-c1{background:rgba(8,145,178,.12);}
.bg-c2{background:rgba(190,24,93,.12);}
.tc-info{flex:1;min-width:0;}
.tc-ru{font-size:14px;font-weight:800;margin-bottom:1px;}
.tc-de{font-size:11px;color:var(--mid);margin-bottom:4px;}
.tc-meta{font-size:11px;color:var(--light);margin-bottom:4px;}
.tc-row{display:flex;align-items:center;gap:7px;}
.tc-bar{flex:1;height:5px;border-radius:3px;background:var(--beige-dark);overflow:hidden;}
.tc-fill{height:100%;border-radius:3px;transition:width .5s;}
.fill-a1{background:var(--a1);}.fill-a2{background:var(--a2);}.fill-b1{background:var(--b1);}
.fill-b2{background:var(--b2);}.fill-c1{background:var(--c1);}.fill-c2{background:var(--c2);}
.tc-pct{font-size:11px;color:var(--light);font-weight:700;min-width:28px;text-align:right;}
.tc-done{font-size:16px;margin-left:4px;}

/* DETAIL */
#detail-screen{background:var(--beige);}
.dh{padding:52px 18px 18px;color:#fff;position:relative;}
.dh-a1{background:linear-gradient(135deg,#4CAF7D,#2e7d57);}
.dh-a2{background:linear-gradient(135deg,#4A90D9,#2c5f9a);}
.dh-b1{background:linear-gradient(135deg,#E8623A,#b54422);}
.dh-b2{background:linear-gradient(135deg,#8B5CF6,#5b33c1);}
.dh-c1{background:linear-gradient(135deg,#0891B2,#065f7a);}
.dh-c2{background:linear-gradient(135deg,#BE185D,#7f0f3e);}
.back-btn{width:40px;height:40px;border-radius:50%;border:none;background:rgba(255,255,255,.2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;position:absolute;top:52px;left:16px;}
.dh-badge{display:inline-block;background:rgba(255,255,255,.2);border-radius:20px;padding:3px 12px;font-size:11px;font-weight:800;margin-bottom:7px;margin-left:52px;}
.dh-title{font-size:19px;font-weight:900;padding:0 16px 0 52px;line-height:1.3;}
.dh-de{font-size:12px;opacity:.85;padding:3px 16px 0 52px;}
.dh-stats{display:flex;margin-top:14px;}
.ds{flex:1;text-align:center;padding:8px 0;border-right:1px solid rgba(255,255,255,.2);}
.ds:last-child{border-right:none;}
.ds-num{font-size:22px;font-weight:900;}
.ds-label{font-size:10px;opacity:.75;text-transform:uppercase;}
.detail-body{padding:16px;}
.db-box{background:var(--white);border-radius:16px;padding:14px;margin-bottom:14px;box-shadow:var(--shadow);}
.db-title{font-size:11px;font-weight:900;color:var(--mid);text-transform:uppercase;letter-spacing:.5px;margin-bottom:8px;}
.db-cat{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;margin-bottom:4px;}
.db-cat::before{content:'✓';font-weight:900;}
.cat-a1::before{color:var(--a1);}.cat-a2::before{color:var(--a2);}.cat-b1::before{color:var(--b1);}
.cat-b2::before{color:var(--b2);}.cat-c1::before{color:var(--c1);}.cat-c2::before{color:var(--c2);}
.xp-note{background:linear-gradient(135deg,rgba(76,175,125,.1),rgba(74,144,217,.1));border:1px solid rgba(76,175,125,.2);border-radius:12px;padding:10px 12px;margin-bottom:14px;font-size:12px;color:var(--mid);display:flex;align-items:center;gap:8px;}
.choose-label{font-size:11px;font-weight:900;color:var(--mid);text-transform:uppercase;letter-spacing:.5px;margin-bottom:10px;}
.mc-wrap{display:flex;flex-direction:column;gap:9px;margin-bottom:16px;}
.mc{background:var(--white);border-radius:14px;padding:13px 15px;box-shadow:var(--shadow);cursor:pointer;display:flex;align-items:center;justify-content:space-between;border:2.5px solid transparent;transition:border-color .2s;}
.mc.sel-a1{border-color:var(--a1);}.mc.sel-a2{border-color:var(--a2);}.mc.sel-b1{border-color:var(--b1);}
.mc.sel-b2{border-color:var(--b2);}.mc.sel-c1{border-color:var(--c1);}.mc.sel-c2{border-color:var(--c2);}
.mc-name{font-size:15px;font-weight:800;}
.mc-sub{font-size:11px;color:var(--mid);margin-top:2px;}
.mc-bar{width:100px;height:4px;border-radius:2px;background:var(--beige-dark);overflow:hidden;margin-top:5px;}
.mc-bar-fill{height:100%;border-radius:2px;}
.mc-pct{font-size:11px;color:var(--light);font-weight:700;margin-left:6px;}
.mc-radio{width:22px;height:22px;border-radius:50%;border:2.5px solid var(--beige-dark);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s;}
.mc-radio.on::after{content:'';width:8px;height:8px;border-radius:50%;background:#fff;}
.mc-radio.on-a1{border-color:var(--a1);background:var(--a1);}.mc-radio.on-a2{border-color:var(--a2);background:var(--a2);}
.mc-radio.on-b1{border-color:var(--b1);background:var(--b1);}.mc-radio.on-b2{border-color:var(--b2);background:var(--b2);}
.mc-radio.on-c1{border-color:var(--c1);background:var(--c1);}.mc-radio.on-c2{border-color:var(--c2);background:var(--c2);}
.btns-row{display:flex;gap:10px;margin-bottom:10px;}
.btns-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px;}
.btn-half{flex:1;border:none;border-radius:13px;padding:13px 8px;font-family:'Nunito',sans-serif;font-size:13px;font-weight:800;cursor:pointer;box-shadow:var(--shadow);transition:transform .15s;}
.btn-mode{border:none;border-radius:16px;padding:16px 10px;font-family:'Nunito',sans-serif;font-size:14px;font-weight:800;cursor:pointer;box-shadow:var(--shadow);transition:transform .15s;display:flex;flex-direction:column;align-items:center;gap:4px;}
.btn-mode:active{transform:scale(.96);}
.btn-mode .bm-icon{font-size:22px;}
.btn-mode .bm-label{font-size:12px;}
.main-btn{width:100%;border:none;border-radius:16px;padding:16px;font-family:'Nunito',sans-serif;font-size:16px;font-weight:800;cursor:pointer;color:#fff;transition:transform .15s;}
/* Detail progress cards */
.detail-progress{display:flex;gap:10px;margin-bottom:14px;}
.dp-card{flex:1;background:var(--white);border-radius:14px;padding:12px;box-shadow:var(--shadow);cursor:pointer;border:2.5px solid transparent;transition:all .2s;}
.dp-card.active{border-color:currentColor;}
.dp-icon{font-size:18px;margin-bottom:4px;}
.dp-title{font-size:12px;font-weight:800;}
.dp-count{font-size:11px;color:var(--mid);margin-top:1px;}
.dp-bar{height:4px;border-radius:2px;background:var(--beige-dark);overflow:hidden;margin-top:6px;}
.dp-bar-fill{height:100%;border-radius:2px;transition:width .5s;}
.dp-pct{font-size:10px;color:var(--mid);font-weight:700;margin-top:2px;text-align:right;}
/* Detail categories collapsible */
.db-toggle{cursor:pointer;display:flex;align-items:center;justify-content:space-between;}
.db-toggle-arrow{font-size:14px;color:var(--mid);transition:transform .2s;}
.db-toggle-arrow.open{transform:rotate(180deg);}
.db-cats-list{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.db-cats-list.open{max-height:500px;}
.btn-a1{background:var(--a1);}.btn-a2{background:var(--a2);}.btn-b1{background:var(--b1);}
.btn-b2{background:var(--b2);}.btn-c1{background:var(--c1);}.btn-c2{background:var(--c2);}

/* CARDS */
#cards-screen{background:var(--beige);}
.cards-top{padding:52px 18px 10px;display:flex;align-items:center;gap:12px;}
.cards-prog-text{flex:1;text-align:center;font-size:13px;font-weight:700;color:var(--mid);}
.cbar-wrap{padding:0 18px 12px;}
.cbar{height:6px;border-radius:3px;background:var(--beige-dark);overflow:hidden;}
.cbar-fill{height:100%;border-radius:3px;transition:width .35s;}
.card-scene{flex:1;display:flex;align-items:center;justify-content:center;padding:10px 18px;perspective:1200px;}
.card-wr{width:100%;max-width:340px;aspect-ratio:3/3.4;position:relative;cursor:pointer;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.25,.46,.45,.94);}
.card-wr.flipped{transform:rotateY(180deg);}
.card-wr.swipe-right{transition:transform .3s ease,opacity .3s;transform:translateX(120%) rotate(12deg) !important;opacity:0;}
.card-wr.swipe-left{transition:transform .3s ease,opacity .3s;transform:translateX(-120%) rotate(-12deg) !important;opacity:0;}
.swipe-hint{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:40px;pointer-events:none;opacity:0;transition:opacity .15s;z-index:10;}
.swipe-hint.show-right{opacity:1;}
.swipe-hint.show-left{opacity:1;}
.cface{position:absolute;inset:0;border-radius:24px;display:flex;flex-direction:column;align-items:center;justify-content:center;backface-visibility:hidden;-webkit-backface-visibility:hidden;padding:26px;text-align:center;box-shadow:0 12px 36px rgba(0,0,0,.12);}
.cfront{background:var(--white);}
.cback{color:#fff;transform:rotateY(180deg);}
.cback-a1{background:linear-gradient(135deg,#4CAF7D,#2e7d57);}
.cback-a2{background:linear-gradient(135deg,#4A90D9,#2c5f9a);}
.cback-b1{background:linear-gradient(135deg,#E8623A,#b54422);}
.cback-b2{background:linear-gradient(135deg,#8B5CF6,#5b33c1);}
.cback-c1{background:linear-gradient(135deg,#0891B2,#065f7a);}
.cback-c2{background:linear-gradient(135deg,#BE185D,#7f0f3e);}
.c-badge-top{position:absolute;top:13px;left:13px;font-size:10px;font-weight:800;padding:3px 9px;border-radius:20px;text-transform:uppercase;}
.cfront .c-badge-top{background:var(--beige);color:var(--mid);}
.cback .c-badge-top{background:rgba(255,255,255,.2);color:#fff;}
.c-num{position:absolute;top:13px;right:13px;font-size:11px;font-weight:700;}
.cfront .c-num{color:var(--light);}
.cback .c-num{color:rgba(255,255,255,.6);}
.c-word{font-size:24px;font-weight:900;margin-bottom:5px;line-height:1.2;}
.c-ex{font-size:14px;margin-top:12px;line-height:1.5;font-style:italic;}
.cfront .c-ex{color:var(--mid);}
.cback .c-ex{color:rgba(255,255,255,.8);}
.c-tap{font-size:11px;margin-top:16px;}
.cfront .c-tap{color:var(--light);}
.cback .c-tap{color:rgba(255,255,255,.6);}
.card-btns{display:flex;gap:12px;padding:10px 18px 16px;}
.cbtn{flex:1;border-radius:50px;padding:13px;border:none;cursor:pointer;font-family:'Nunito',sans-serif;font-size:14px;font-weight:800;transition:transform .15s;box-shadow:var(--shadow);}
.cbtn-skip{background:var(--beige-dark);color:var(--mid);}
.cbtn-later{background:rgba(74,144,217,.15);color:#4A90D9;flex:0 0 auto;padding:13px 16px;font-size:13px;}
.cbtn-know{background:var(--green);color:#fff;}

/* SPEAK / FAV */
.speak-btn{background:var(--beige);border:none;border-radius:50%;width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;flex-shrink:0;transition:transform .15s;-webkit-tap-highlight-color:transparent;}
.speak-btn:active{transform:scale(.9);}
.fav-btn{background:none;border:none;cursor:pointer;font-size:22px;padding:2px;line-height:1;transition:transform .2s;-webkit-tap-highlight-color:transparent;}
.fav-btn:active{transform:scale(1.3);}
/* SEARCH */
.search-overlay{position:fixed;top:0;left:0;right:0;bottom:56px;background:var(--beige);z-index:10000;display:none;flex-direction:column;}
.search-overlay.open{display:flex;}
.search-top{padding:10px 14px;display:flex;align-items:center;gap:10px;background:var(--white);box-shadow:var(--shadow);}
.search-inp{flex:1;border:none;outline:none;font-family:'Nunito',sans-serif;font-size:16px;font-weight:700;background:transparent;color:var(--dark);}
.search-inp::placeholder{color:var(--light);}
.search-cancel{font-size:22px;font-weight:800;color:var(--mid);cursor:pointer;white-space:nowrap;padding:8px;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--beige);}
.search-results{flex:1;overflow-y:auto;padding:10px 14px 40px;}
.search-empty{text-align:center;padding:50px 20px;color:var(--mid);font-size:14px;font-weight:700;}
.sr-item{background:var(--white);border-radius:14px;padding:12px 14px;margin-bottom:8px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;cursor:pointer;}
.sr-item:active{transform:scale(.98);}
.sr-de{font-size:15px;font-weight:800;}
.sr-ru{font-size:12px;color:var(--mid);margin-top:2px;}
.sr-badge{font-size:10px;font-weight:800;padding:2px 7px;border-radius:10px;color:#fff;flex-shrink:0;}
/* WORD OF DAY */
.wotd-card{margin:10px 16px 0;background:linear-gradient(135deg,#1a1a2e,#2d1b69);border-radius:20px;padding:16px;color:#fff;position:relative;overflow:hidden;}
.wotd-card::before{content:'✨';position:absolute;top:-10px;right:10px;font-size:60px;opacity:.08;}
.wotd-top{display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.wotd-label{font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.8px;opacity:.6;}
.wotd-badge{font-size:10px;font-weight:800;background:rgba(255,215,0,.2);color:#FFD700;border-radius:20px;padding:2px 8px;margin-left:auto;}
.wotd-de{font-size:22px;font-weight:900;margin-bottom:3px;display:flex;align-items:center;gap:8px;}
.wotd-ru{font-size:13px;opacity:.75;margin-bottom:6px;}
.wotd-ex{font-size:11px;opacity:.55;font-style:italic;line-height:1.4;margin-bottom:10px;}
.wotd-topic{font-size:10px;font-weight:800;opacity:.5;text-transform:uppercase;letter-spacing:.5px;}
.wotd-xp{display:inline-flex;align-items:center;gap:4px;background:rgba(76,175,125,.25);color:#4CAF7D;border-radius:20px;padding:3px 10px;font-size:11px;font-weight:800;margin-top:4px;}

/* QUESTS */
.quests-card{margin:10px 16px 0;background:var(--white);border-radius:18px;padding:14px;box-shadow:var(--shadow);}
.quests-title{font-size:11px;font-weight:900;color:var(--mid);text-transform:uppercase;letter-spacing:.7px;margin-bottom:10px;}
.quest-item{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--beige);}
.quest-item:last-child{border-bottom:none;padding-bottom:0;}
.quest-icon{font-size:20px;flex-shrink:0;}
.quest-info{flex:1;min-width:0;}
.quest-desc{font-size:12px;font-weight:800;margin-bottom:4px;}
.quest-bar-row{display:flex;align-items:center;gap:6px;}
.quest-bar{flex:1;height:4px;border-radius:2px;background:var(--beige-dark);overflow:hidden;}
.quest-bar-fill{height:100%;border-radius:2px;background:var(--green);transition:width .4s;}
.quest-prog{font-size:10px;color:var(--light);font-weight:700;white-space:nowrap;}
.quest-xp{font-size:11px;font-weight:800;color:var(--green);flex-shrink:0;}
.quest-done{font-size:18px;flex-shrink:0;}
/* LEADERBOARD */
#lb-screen{background:var(--beige);}
.lb-hero{background:linear-gradient(160deg,#1a1a2e,#16213e);padding:62px 16px 28px;margin-bottom:-16px;}
.lb-hero-title{color:#fff;font-size:20px;font-weight:900;text-align:center;margin-bottom:4px;}
.lb-hero-sub{color:rgba(255,255,255,.4);font-size:12px;font-weight:700;text-align:center;margin-bottom:20px;}
.lb-podium{display:flex;align-items:flex-end;justify-content:center;gap:10px;}
.lb-pod{text-align:center;background:rgba(255,255,255,.07);border-radius:18px;padding:14px 10px 12px;backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);}
.lb-pod-1{flex:0 0 120px;padding-bottom:16px;border-color:rgba(255,215,0,.3);background:rgba(255,215,0,.08);}
.lb-pod-2{flex:0 0 100px;}
.lb-pod-3{flex:0 0 100px;}
.lb-pod-avatar{font-size:36px;line-height:1;margin-bottom:6px;}
.lb-pod-1 .lb-pod-avatar{font-size:44px;}
.lb-pod-medal{font-size:20px;margin-bottom:4px;}
.lb-pod-name{font-size:12px;font-weight:900;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100px;margin:0 auto;}
.lb-pod-loc{font-size:10px;color:rgba(255,255,255,.4);font-weight:700;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.lb-pod-xp{font-size:13px;font-weight:900;color:#FFD700;margin-top:5px;}
.lb-pod-achs{font-size:14px;margin-top:4px;letter-spacing:1px;}
.lb-list{padding:16px 14px 40px;display:flex;flex-direction:column;gap:8px;}
.lb-row{background:var(--white);border-radius:16px;padding:12px 14px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;transition:transform .1s;}
.lb-row.me{border:2px solid var(--green);background:linear-gradient(135deg,rgba(76,175,125,.05),var(--white));}
.lb-rank{font-size:14px;font-weight:900;color:var(--mid);min-width:24px;text-align:center;}
.lb-avatar{font-size:32px;flex-shrink:0;}
.lb-info{flex:1;min-width:0;}
.lb-info-name{font-size:14px;font-weight:900;color:var(--dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.lb-info-loc{font-size:11px;color:var(--light);font-weight:700;margin-top:1px;}
.lb-info-achs{font-size:13px;margin-top:2px;}
.lb-stat{text-align:right;flex-shrink:0;}
.lb-stat-xp{font-size:15px;font-weight:900;color:var(--green);}
.lb-stat-sub{font-size:10px;color:var(--light);font-weight:700;margin-top:1px;}
.lb-my-rank{background:linear-gradient(135deg,rgba(76,175,125,.1),rgba(74,144,217,.1));border:1.5px solid rgba(76,175,125,.3);border-radius:14px;padding:12px 14px;margin:0 14px 20px;text-align:center;font-size:13px;font-weight:800;color:var(--green);}
.lb-privacy{margin:0 14px 30px;padding:10px 14px;background:rgba(0,0,0,.04);border-radius:12px;font-size:11px;color:var(--light);font-weight:700;text-align:center;line-height:1.5;}
/* STATS SCREEN */
#stats-screen{background:var(--beige);}
.stat-card{background:var(--white);border-radius:18px;padding:16px;margin-bottom:12px;box-shadow:var(--shadow);}
.stat-card-title{font-size:11px;font-weight:900;color:var(--mid);text-transform:uppercase;letter-spacing:.7px;margin-bottom:12px;}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.stat-num-box{background:var(--beige);border-radius:12px;padding:12px;text-align:center;}
.stat-num{font-size:24px;font-weight:900;color:var(--green);}
.stat-lbl{font-size:11px;color:var(--mid);margin-top:2px;font-weight:700;}
.chart-wrap{position:relative;width:100%;height:130px;}
.chart-wrap canvas{width:100%;height:100%;}
/* ACTIVITY CALENDAR */
.cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-top:8px;}
.cal-day{aspect-ratio:1;border-radius:4px;background:var(--beige-dark);}
.cal-day.lvl1{background:rgba(76,175,125,.25);}
.cal-day.lvl2{background:rgba(76,175,125,.5);}
.cal-day.lvl3{background:rgba(76,175,125,.75);}
.cal-day.lvl4{background:#4CAF7D;}
.cal-day.today{outline:2px solid var(--green);outline-offset:1px;}
.cal-labels{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-bottom:4px;}
.cal-lbl{font-size:9px;font-weight:800;color:var(--light);text-align:center;text-transform:uppercase;}
/* FAVORITES SCREEN */
#fav-screen{background:var(--beige);}
.fav-word-card{background:var(--white);border-radius:14px;padding:12px 14px;box-shadow:var(--shadow);display:flex;align-items:center;gap:10px;margin-bottom:8px;}
.fav-word-de{font-size:15px;font-weight:800;flex:1;}
.fav-word-ru{font-size:12px;color:var(--mid);margin-top:2px;}

/* WRITE */
#write-screen{background:var(--beige);}
.write-input{width:100%;padding:14px 16px;border-radius:14px;border:2.5px solid var(--beige-dark);background:var(--white);font-family:'Nunito',sans-serif;font-size:17px;font-weight:700;color:var(--dark);outline:none;box-shadow:var(--shadow);transition:border-color .2s;display:block;}
.write-input:focus{border-color:var(--green);}
.write-input.correct{border-color:var(--green);background:#E8F5EE;}
.write-input.wrong{border-color:var(--red);background:#FDECEA;}

/* QUIZ */
#quiz-screen{background:var(--beige);}
.quiz-top{padding:52px 18px 14px;display:flex;align-items:center;gap:12px;}
.quiz-score{color:#fff;font-size:13px;font-weight:800;padding:5px 13px;border-radius:20px;margin-left:auto;}
.qbar-wrap{padding:0 18px;}
.qbar{height:6px;border-radius:3px;background:var(--beige-dark);overflow:hidden;}
.qbar-fill{height:100%;border-radius:3px;transition:width .35s;}
.quiz-q{padding:18px 18px 12px;}
.quiz-qlabel{font-size:11px;color:var(--mid);font-weight:800;text-transform:uppercase;letter-spacing:.6px;margin-bottom:8px;}
.quiz-word{font-size:22px;font-weight:900;line-height:1.3;}
.quiz-opts{padding:4px 14px;display:flex;flex-direction:column;gap:8px;}
.qopt{background:var(--white);border-radius:14px;padding:14px 17px;font-size:14px;font-weight:700;cursor:pointer;border:2.5px solid transparent;transition:all .18s;box-shadow:var(--shadow);line-height:1.3;}
.qopt.correct{background:#E8F5EE;border-color:var(--green);color:var(--green);}
.qopt.wrong{background:#FDECEA;border-color:var(--red);color:var(--red);}
.qopt.disabled{cursor:default;opacity:.75;}
.quiz-fb{padding:10px 18px;text-align:center;font-size:14px;font-weight:800;min-height:42px;}
.quiz-fb.ok{color:var(--green);}
.quiz-fb.bad{color:var(--red);}

/* RESULT */
#result-screen{color:#fff;align-items:center;justify-content:center;padding:40px 24px;flex-direction:column;gap:14px;text-align:center;}
.res-a1{background:linear-gradient(135deg,#4CAF7D,#2e7d57);}
.res-a2{background:linear-gradient(135deg,#4A90D9,#2c5f9a);}
.res-b1{background:linear-gradient(135deg,#E8623A,#b54422);}
.res-b2{background:linear-gradient(135deg,#8B5CF6,#5b33c1);}
.res-c1{background:linear-gradient(135deg,#0891B2,#065f7a);}
.res-c2{background:linear-gradient(135deg,#BE185D,#7f0f3e);}
.res-emoji{font-size:68px;}
.res-title{font-size:28px;font-weight:900;}
.res-sub{font-size:14px;opacity:.85;}
.res-box{background:rgba(255,255,255,.18);border-radius:20px;padding:18px 44px;display:flex;flex-direction:column;align-items:center;}
.res-num{font-size:54px;font-weight:900;line-height:1;}
.res-label{font-size:12px;opacity:.8;margin-top:3px;}
.res-xp{background:rgba(255,255,255,.2);border-radius:12px;padding:8px 16px;font-size:14px;font-weight:800;display:flex;align-items:center;gap:6px;}
.res-btn{width:100%;background:#fff;border:none;border-radius:14px;padding:15px;font-family:'Nunito',sans-serif;font-size:15px;font-weight:800;cursor:pointer;transition:transform .15s;}
.res-btn.ghost{background:rgba(255,255,255,.18);color:#fff !important;box-shadow:none;}

/* ACHIEVEMENTS POPUP */
.ach-popup{position:fixed;top:60px;left:50%;transform:translateX(-50%);width:calc(100% - 32px);max-width:440px;z-index:9999;pointer-events:none;}
.ach-toast{background:var(--dark);color:#fff;border-radius:16px;padding:12px 16px;display:flex;align-items:center;gap:12px;margin-bottom:8px;box-shadow:0 8px 24px rgba(0,0,0,.3);animation:toastIn .4s cubic-bezier(.4,0,.2,1) forwards;}
@keyframes toastIn{from{opacity:0;transform:translateY(-20px);}to{opacity:1;transform:translateY(0);}}
.ach-toast-icon{font-size:28px;}
.ach-toast-text{}
.ach-toast-title{font-size:12px;opacity:.6;font-weight:700;text-transform:uppercase;}
.ach-toast-name{font-size:15px;font-weight:900;}
.ach-toast-xp{margin-left:auto;color:var(--green);font-size:14px;font-weight:900;}

/* XP POPUP */
.xp-popup{position:fixed;bottom:100px;left:50%;transform:translateX(-50%);z-index:9998;pointer-events:none;}
.xp-float{background:var(--green);color:#fff;border-radius:20px;padding:6px 14px;font-size:14px;font-weight:900;animation:xpFloat 1.5s ease forwards;}
@keyframes xpFloat{0%{opacity:0;transform:translateY(0);}20%{opacity:1;}100%{opacity:0;transform:translateY(-60px);}}

/* SETTINGS */
#settings-screen{background:var(--beige);}
.sh{padding:52px 18px 16px;display:flex;align-items:center;gap:12px;}
.sh-title{flex:1;text-align:center;font-size:18px;font-weight:900;}
.sb{padding:0 16px 32px;display:flex;flex-direction:column;gap:12px;}
.ss{background:var(--white);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);}
.ss-title{padding:14px 16px 10px;font-size:11px;font-weight:900;color:var(--mid);text-transform:uppercase;letter-spacing:.8px;border-bottom:1px solid var(--beige);}
.sr{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--beige);}
.sr:last-child{border-bottom:none;}
.sr-left{display:flex;align-items:center;gap:12px;}
.sr-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:17px;}
.sr-name{font-size:14px;font-weight:800;}
.sr-desc{font-size:11px;color:var(--mid);margin-top:1px;}
.toggle{width:44px;height:26px;border-radius:13px;background:var(--beige-dark);position:relative;cursor:pointer;transition:background .25s;flex-shrink:0;}
.toggle.on{background:var(--green);}
.toggle-knob{width:20px;height:20px;border-radius:50%;background:#fff;position:absolute;top:3px;left:3px;transition:left .25s;box-shadow:0 1px 4px rgba(0,0,0,.2);}
.toggle.on .toggle-knob{left:21px;}
.sel-ctrl{background:var(--beige);border:none;border-radius:8px;padding:6px 10px;font-family:'Nunito',sans-serif;font-size:13px;font-weight:700;color:var(--dark);cursor:pointer;outline:none;}
.danger-btn{background:#FDECEA;color:var(--red);border:none;border-radius:10px;padding:8px 14px;font-family:'Nunito',sans-serif;font-size:13px;font-weight:800;cursor:pointer;}
.about-box{background:var(--white);border-radius:18px;padding:20px;box-shadow:var(--shadow);text-align:center;}

/* ACHIEVEMENTS SCREEN */
#achs-screen{background:var(--beige);}
.achs-header{padding:52px 18px 16px;display:flex;align-items:center;gap:12px;}
.achs-title{flex:1;text-align:center;font-size:18px;font-weight:900;}
.achs-body{padding:0 16px 32px;}
.achs-stats{background:var(--dark);color:#fff;border-radius:18px;padding:16px;margin-bottom:14px;display:flex;gap:0;text-align:center;}
.as-item{flex:1;border-right:1px solid rgba(255,255,255,.1);}
.as-item:last-child{border-right:none;}
.as-num{font-size:22px;font-weight:900;}
.as-label{font-size:10px;opacity:.6;text-transform:uppercase;}
.achs-grid{display:flex;flex-direction:column;gap:10px;}
.ach-card{background:var(--white);border-radius:16px;padding:14px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;}
.ach-card.locked{opacity:.4;}
.ach-card-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;}
.ach-rarity-common{background:rgba(76,175,125,.15);}
.ach-rarity-rare{background:rgba(74,144,217,.15);}
.ach-rarity-epic{background:rgba(139,92,246,.15);}
.ach-rarity-legendary{background:linear-gradient(135deg,rgba(245,200,66,.3),rgba(232,98,58,.2));}
.ach-info{flex:1;}
.ach-name{font-size:14px;font-weight:800;}
.ach-desc{font-size:11px;color:var(--mid);margin-top:1px;}
.ach-xp{font-size:12px;font-weight:800;color:var(--green);margin-left:auto;}
.ach-lock{font-size:18px;color:var(--light);margin-left:auto;}
.rarity-badge{display:inline-block;font-size:10px;font-weight:800;padding:2px 7px;border-radius:10px;margin-top:3px;text-transform:uppercase;letter-spacing:.4px;}
.rb-common{background:rgba(76,175,125,.1);color:var(--green);}
.rb-rare{background:rgba(74,144,217,.1);color:var(--blue);}
.rb-epic{background:rgba(139,92,246,.1);color:var(--purple);}
.rb-legendary{background:rgba(245,200,66,.15);color:#b8860b;}

/* LOADING */
.loading-overlay{position:fixed;inset:0;background:rgba(42,42,42,.6);z-index:9998;display:none;align-items:center;justify-content:center;}
.loading-overlay.show{display:flex;}
.loading-box{background:#fff;border-radius:20px;padding:28px 40px;text-align:center;}
.loading-spinner{width:40px;height:40px;border:4px solid var(--beige-dark);border-top-color:var(--orange);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 12px;}
@keyframes spin{to{transform:rotate(360deg);}}
.loading-text{font-size:14px;font-weight:700;color:var(--mid);}

/* GUEST LIMIT */
.guest-gate{position:fixed;inset:0;background:rgba(0,0,0,.8);z-index:9999;display:none;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(6px);}
.guest-gate.open{display:flex;}
.gg-box{background:#1A1A2E;color:#fff;border-radius:24px;padding:28px 24px;max-width:360px;width:100%;text-align:center;}
.gg-emoji{font-size:52px;margin-bottom:14px;}
.gg-title{font-size:22px;font-weight:900;margin-bottom:8px;}
.gg-sub{font-size:13px;opacity:.65;margin-bottom:24px;line-height:1.5;}
.gg-reg{width:100%;background:var(--green);border:none;border-radius:14px;padding:14px;font-family:'Nunito',sans-serif;font-size:15px;font-weight:800;color:#fff;cursor:pointer;margin-bottom:10px;}
.gg-later{background:transparent;border:1.5px solid rgba(255,255,255,.2);width:100%;border-radius:14px;padding:13px;font-family:'Nunito',sans-serif;font-size:14px;font-weight:700;color:rgba(255,255,255,.6);cursor:pointer;}

@keyframes fadeUp{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:translateY(0);}}
.fu{animation:fadeUp .28s ease both;}

/* MISTAKES MODAL */
.mistakes-modal{position:fixed;inset:0;background:rgba(0,0,0,.65);z-index:10001;display:none;align-items:flex-end;justify-content:center;backdrop-filter:blur(4px);}
.mistakes-modal.open{display:flex;}
.lang-modal{position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:10002;display:none;align-items:center;justify-content:center;backdrop-filter:blur(6px);}
.lang-modal.open{display:flex;}
.lang-box{background:var(--card);border-radius:24px;padding:32px 28px;max-width:360px;width:90%;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.4);}
.lang-title{font-size:22px;font-weight:900;color:var(--text);margin-bottom:6px;}
.lang-sub{font-size:13px;color:var(--mid);margin-bottom:24px;}
.lang-btn{display:block;width:100%;padding:16px;border-radius:16px;border:2px solid var(--beige-dark);background:var(--beige);color:var(--text);font-size:16px;font-weight:800;font-family:'Nunito',sans-serif;cursor:pointer;margin-bottom:12px;transition:all .2s;}
.lang-btn:hover,.lang-btn.sel{border-color:var(--green);background:rgba(76,175,125,.12);color:var(--green);}
.lang-btn .flag{font-size:22px;margin-right:10px;}
.mistakes-box{background:var(--white);border-radius:24px 24px 0 0;width:100%;max-width:480px;max-height:78vh;overflow-y:auto;padding:20px 16px 44px;animation:slideUp .3s cubic-bezier(.4,0,.2,1);}
@keyframes slideUp{from{transform:translateY(100%);}to{transform:translateY(0);}}
.mistakes-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.mistakes-title{font-size:17px;font-weight:900;}
.mistakes-close{width:36px;height:36px;border-radius:50%;border:none;background:var(--beige-dark);font-size:16px;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.mistake-row{background:var(--beige);border-radius:14px;padding:12px 14px;margin-bottom:8px;display:flex;align-items:center;gap:10px;}
.mistake-info{flex:1;min-width:0;}
.mistake-wrong{font-size:12px;color:var(--red);font-weight:700;}
.mistake-right{font-size:15px;font-weight:900;color:var(--dark);margin-top:2px;}
.mistake-sub{font-size:12px;color:var(--mid);margin-top:1px;}
.mistake-speak{background:none;border:none;font-size:20px;cursor:pointer;flex-shrink:0;padding:4px;}

/* Bottom Navigation Bar (mobile only) */
.bottom-nav{display:flex;position:fixed;bottom:0;left:0;right:0;background:var(--white);border-top:1px solid var(--border);z-index:95;padding:4px 0 env(safe-area-inset-bottom,8px);box-shadow:0 -2px 10px rgba(0,0,0,.06);}
body.dark .bottom-nav{background:#1a1a2e;border-color:rgba(255,255,255,.08);box-shadow:0 -2px 10px rgba(0,0,0,.3);}
.bnav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:6px 0;cursor:pointer;color:var(--mid);font-size:9px;font-weight:700;transition:color .15s;text-decoration:none;-webkit-tap-highlight-color:transparent;user-select:none;}
.bnav-item.active{color:var(--green);}
.bnav-item .bnav-icon{font-size:20px;margin-bottom:1px;}
[dir="rtl"] .bottom-nav{direction:ltr;}

/* ══ DESKTOP ══ */
#sb{display:none;}
@media(min-width:900px){
  .bottom-nav{display:none !important;}
  .screen{padding-bottom:0;}
  html{background:#0f0f1a;min-height:100%;}
  body{max-width:1440px;display:flex;align-items:stretch;overflow-x:hidden;}

  /* Sidebar */
  #sb{
    width:240px;flex-shrink:0;background:#1a1a2e;
    min-height:100vh;height:100vh;position:sticky;top:0;
    overflow-y:auto;display:flex;flex-direction:column;
    border-right:1px solid rgba(255,255,255,.06);z-index:50;
  }
  body.dark #sb{background:#08081a;}
  .sb-logo{padding:22px 20px 14px;font-size:17px;font-weight:900;color:#fff;border-bottom:1px solid rgba(255,255,255,.08);display:flex;align-items:center;gap:8px;}
  .sb-user{padding:14px 20px;border-bottom:1px solid rgba(255,255,255,.08);}
  .sb-ava{font-size:30px;margin-bottom:5px;}
  .sb-uname{font-size:14px;font-weight:900;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
  .sb-uxp{font-size:12px;color:rgba(255,255,255,.45);margin-top:2px;}
  .sb-streak{display:inline-flex;align-items:center;gap:4px;background:rgba(232,98,58,.2);border-radius:20px;padding:3px 9px;font-size:11px;font-weight:800;color:#E8623A;margin-top:7px;}
  .sb-xp-bar{height:3px;background:rgba(255,255,255,.1);border-radius:2px;margin-top:8px;overflow:hidden;}
  .sb-xp-fill{height:100%;background:var(--green);border-radius:2px;}
  .sb-nav{flex:1;padding:10px 0;}
  .sb-ni{display:flex;align-items:center;gap:12px;padding:11px 20px;color:rgba(255,255,255,.55);font-size:13px;font-weight:700;cursor:pointer;border-radius:12px;margin:1px 8px;transition:background .15s,color .15s;user-select:none;}
  .sb-ni:hover{background:rgba(255,255,255,.08);color:#fff;}
  .sb-ni.sba{background:rgba(255,255,255,.13);color:#fff;}
  .sb-ic{font-size:17px;width:22px;text-align:center;flex-shrink:0;}
  .sb-sep{height:1px;background:rgba(255,255,255,.07);margin:8px 20px;}
  .sb-bot{padding:14px 20px;border-top:1px solid rgba(255,255,255,.08);}
  .sb-bot a{display:block;color:rgba(255,255,255,.35);font-size:12px;font-weight:700;text-decoration:none;padding:6px 0;}
  .sb-bot a:hover{color:rgba(255,255,255,.7);}

  /* Screens wrap */
  #sw{flex:1;min-width:0;background:var(--beige);transition:background .3s;}

  /* Hide mobile-only elements */
  .topbar{display:none!important;}
  .guest-banner{display:none;}

  /* Screen inner spacing (no topbar offset needed) */
  .home-top{padding-top:28px!important;}
  .cards-top{padding-top:18px!important;}
  .detail-screen-header,#quiz-screen>div:first-child,#write-screen>div:first-child,
  #audio-screen>div:first-child,#grammar-screen>div:first-child{padding-top:18px!important;}

  /* Topics: 2-column grid */
  .topics-wrap{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:12px 20px 40px!important;}

  /* Level tabs: all 6 in one row */
  .level-tabs{grid-template-columns:repeat(6,1fr);gap:6px;padding:8px 20px 0!important;}

  /* Wider padding */
  .status-bar{margin:10px 20px 0!important;}
  .quick-actions{margin:10px 20px 0!important;}
  .xp-card{margin:12px 20px 0!important;}
  .daily-wrap{margin:10px 20px 0!important;}
  .sec-label{padding:4px 20px!important;}
  .home-quick{padding:0 20px!important;}
  .detail-body{padding:16px 24px!important;}

  /* Cards bigger */
  .card-wr{max-width:400px;}

  /* Achievements: 2 columns */
  .achs-grid{display:grid!important;grid-template-columns:1fr 1fr;gap:10px!important;}
  .ach-card{background:var(--white)!important;}

  /* Leaderboard, Settings, Stats — wider padding */
  .lb-hero,.settings-body,.stats-body,.prof-body,.fav-body{padding-left:24px;padding-right:24px;}

  /* Popup adjust */
  .ach-popup{top:16px;}
  .xp-popup{left:calc(240px + 50%);transform:translateX(-50%);}

  /* Overlays — offset for sidebar */
  .search-overlay{left:240px;width:calc(100% - 240px);bottom:0;}
  .loading-overlay{left:240px;width:calc(100% - 240px);}
}
@media(min-width:1200px){
  #sb{width:260px;}
  .search-overlay,.loading-overlay{left:260px;width:calc(100% - 260px);}
  .xp-popup{left:calc(260px + 50%);}
}
/* RTL Support for Arabic */
/* RTL: removed .sb transform — .sb is screen body, not sidebar nav */
[dir="rtl"] .screen-header .back-btn{margin-right:0;margin-left:auto;}
[dir="rtl"] .card-front,[dir="rtl"] .card-back{direction:rtl;text-align:right;}
[dir="rtl"] .quiz-opts button{text-align:right;}
[dir="rtl"] .search-inp{text-align:right;}
[dir="rtl"] .sb-ni{text-align:right;}
[dir="rtl"] #swipeHintText{direction:rtl;}
/* Report Error Button */
.report-btn{display:none;}
.report-inline{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:10px;background:transparent;border:1px solid rgba(0,0,0,.1);color:rgba(0,0,0,.35);font-size:10px;font-weight:700;font-family:'Nunito',sans-serif;cursor:pointer;transition:all .15s;margin-top:8px;}
.report-inline:hover{background:rgba(232,98,58,.1);border-color:rgba(232,98,58,.3);color:#E8623A;}
.dark .report-inline{border-color:rgba(255,255,255,.1);color:rgba(255,255,255,.35);}
.dark .report-inline:hover{background:rgba(232,98,58,.15);color:#E8623A;}
.report-modal-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);z-index:9999;align-items:center;justify-content:center;padding:16px;}
.report-modal-overlay.active{display:flex;}
.report-modal{background:var(--white);border-radius:20px;max-width:400px;width:100%;padding:24px;position:relative;box-shadow:0 10px 40px rgba(0,0,0,.2);}
.report-modal h3{font-size:16px;font-weight:900;margin-bottom:16px;color:var(--dark);}
.report-type-btn{display:block;width:100%;padding:12px 14px;margin-bottom:8px;border-radius:12px;border:2px solid var(--border);background:var(--white);font-family:'Nunito',sans-serif;font-size:14px;font-weight:700;cursor:pointer;text-align:left;transition:all .15s;color:var(--dark);}
.report-type-btn:hover{border-color:var(--orange);color:var(--orange);}
.report-type-btn.selected{border-color:var(--orange);background:rgba(232,98,58,.08);color:var(--orange);}
[dir="rtl"] .report-type-btn{text-align:right;}
.report-comment{width:100%;padding:10px 12px;border-radius:12px;border:2px solid var(--border);font-family:'Nunito',sans-serif;font-size:13px;resize:vertical;min-height:60px;margin-top:12px;outline:none;}
.report-comment:focus{border-color:var(--orange);}
.report-actions{display:flex;gap:8px;margin-top:14px;}
.report-actions button{flex:1;padding:12px;border-radius:12px;border:none;font-family:'Nunito',sans-serif;font-size:14px;font-weight:800;cursor:pointer;}
.report-send{background:var(--orange);color:#fff;}
.report-cancel{background:var(--beige);color:var(--mid);}
.report-context{font-size:11px;color:var(--mid);margin-bottom:12px;padding:8px 10px;background:var(--beige);border-radius:8px;}
.report-success{text-align:center;padding:20px;font-size:15px;font-weight:800;color:var(--green);}

/* AI Review — Premium Design */
.ai-review-btn{background:linear-gradient(135deg,#6366f1,#8b5cf6)!important;color:#fff!important;border:none!important;font-weight:800!important;box-shadow:0 4px 15px rgba(99,102,241,.35)!important;}
.ai-remaining{font-size:11px;color:var(--mid);text-align:center;margin-top:6px;font-weight:700;}
.ai-limit-badge{display:inline-flex;align-items:center;gap:4px;background:rgba(139,92,246,.1);border:1px solid rgba(139,92,246,.2);border-radius:20px;padding:4px 12px;font-size:11px;font-weight:800;color:#8b5cf6;margin-bottom:12px;}
body.dark .ai-limit-badge{background:rgba(139,92,246,.15);}
.ai-review-content{font-size:14px;line-height:1.8;color:var(--dark);}
.ai-review-content .ai-error-block{background:var(--white);border-radius:16px;padding:16px;margin-bottom:12px;box-shadow:var(--shadow);border-left:4px solid var(--red);}
body.dark .ai-review-content .ai-error-block{background:#1a1a2c;border-color:rgba(255,255,255,.07);}
.ai-review-content .ai-error-block.tip{border-left-color:var(--green);}
.ai-review-content h2{font-size:15px;font-weight:900;margin:0 0 8px;color:var(--dark);}
.ai-review-content strong{font-weight:800;color:var(--dark);}
.ai-review-content p{margin:4px 0;line-height:1.7;}
.ai-review-content code{background:rgba(139,92,246,.1);padding:2px 6px;border-radius:4px;font-size:13px;font-weight:700;color:#8b5cf6;}
.ai-review-content ul{margin:6px 0;padding-left:20px;list-style:none;}
.ai-review-content li{position:relative;padding:3px 0;font-size:13px;line-height:1.6;}
.ai-review-content li::before{content:'•';color:#8b5cf6;font-weight:900;position:absolute;left:-14px;}
.ai-review-content em{font-style:italic;color:var(--mid);}
body.dark .ai-review-content code{background:rgba(139,92,246,.2);}
.ai-loading{text-align:center;padding:40px 0;color:var(--mid);}
.ai-loading-spinner{display:inline-block;width:24px;height:24px;border:3px solid rgba(139,92,246,.2);border-top-color:#8b5cf6;border-radius:50%;animation:spin .8s linear infinite;margin-bottom:10px;}
.ai-qa-wrap{margin-top:16px;padding-top:16px;border-top:1px solid var(--beige-dark);}
body.dark .ai-qa-wrap{border-color:rgba(255,255,255,.08);}
.ai-qa-title{font-size:13px;font-weight:800;color:var(--mid);margin-bottom:8px;}
.ai-qa-input{display:flex;gap:8px;}
.ai-qa-input input{flex:1;padding:10px 14px;border-radius:12px;border:1.5px solid var(--beige-dark);background:var(--white);font-family:'Nunito',sans-serif;font-size:14px;color:var(--dark);outline:none;}
body.dark .ai-qa-input input{background:#1a1a2c;border-color:rgba(255,255,255,.15);color:var(--dark);}
.ai-qa-input input:focus{border-color:#8b5cf6;}
.ai-qa-input button{width:44px;height:44px;border-radius:12px;border:none;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:18px;font-weight:800;cursor:pointer;flex-shrink:0;}
.ai-qa-remaining{font-size:11px;color:var(--mid);margin-top:6px;font-weight:700;}
.ai-qa-msg{margin:10px 0;padding:12px 16px;border-radius:16px;font-size:13px;line-height:1.7;max-width:85%;}
.ai-qa-msg.user{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;margin-left:auto;border-bottom-right-radius:4px;}
.ai-qa-msg.ai{background:var(--white);color:var(--dark);box-shadow:var(--shadow);border-bottom-left-radius:4px;}
body.dark .ai-qa-msg.ai{background:#1a1a2c;border:1px solid rgba(255,255,255,.07);}
.ai-hist-item{padding:14px 16px;margin-bottom:8px;background:var(--white);border-radius:16px;box-shadow:var(--shadow);cursor:pointer;transition:transform .15s;border-left:4px solid #8b5cf6;}
body.dark .ai-hist-item{background:#1a1a2c;border-color:rgba(255,255,255,.07);border-left-color:#8b5cf6;}
.ai-hist-item:active{transform:scale(.98);}
.ai-hist-date{font-size:11px;color:var(--mid);font-weight:700;}
.ai-hist-title{font-size:14px;font-weight:800;margin-top:2px;}
.ai-hist-meta{font-size:12px;color:var(--mid);margin-top:2px;}
.ai-hist-day{font-size:12px;font-weight:800;color:var(--mid);padding:14px 0 6px;text-transform:uppercase;letter-spacing:.5px;}

/* Onboarding guide bar */
.ob-bar{position:fixed;bottom:60px;left:8px;right:8px;z-index:99998;background:linear-gradient(135deg,#1a1a2e,#252547);border:1.5px solid rgba(139,92,246,.3);border-radius:18px;padding:14px 16px;box-shadow:0 -4px 30px rgba(0,0,0,.5);font-family:'Nunito',sans-serif;color:#fff;animation:obSlideUp .3s ease;}
@keyframes obSlideUp{from{transform:translateY(100px);opacity:0;}to{transform:translateY(0);opacity:1;}}
.ob-bar-text{font-size:14px;font-weight:700;line-height:1.6;margin-bottom:10px;color:rgba(255,255,255,.9);}
.ob-bar-btns{display:flex;gap:8px;justify-content:flex-end;}
.ob-bar-skip{padding:8px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.15);background:transparent;color:rgba(255,255,255,.35);font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;cursor:pointer;}
.ob-bar-next{padding:8px 18px;border-radius:10px;border:none;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-family:'Nunito',sans-serif;font-size:12px;font-weight:800;cursor:pointer;}
/* Highlight pulsing border on target element */
.ob-hl{position:relative;z-index:99997!important;}
.ob-hl::after{content:'';position:absolute;inset:-4px;border:2.5px solid #8b5cf6;border-radius:inherit;animation:obPulse 1.2s ease-in-out infinite;pointer-events:none;z-index:99997;}
@keyframes obPulse{0%,100%{opacity:.3;box-shadow:0 0 0 0 rgba(139,92,246,.4);}50%{opacity:1;box-shadow:0 0 12px 4px rgba(139,92,246,.25);}}
@keyframes obBounce{0%,100%{transform:translateY(0);}50%{transform:translateY(-12px);}}

/* Dialog */
.dialog-topic-card{padding:14px 16px;margin-bottom:8px;background:var(--white);border-radius:16px;box-shadow:var(--shadow);cursor:pointer;border-left:4px solid var(--green);transition:transform .15s;}
body.dark .dialog-topic-card{background:#1a1a2c;border-color:rgba(255,255,255,.07);border-left-color:var(--green);}
.dialog-topic-card:active{transform:scale(.98);}
.dt-title{font-size:15px;font-weight:800;}
.dt-desc{font-size:12px;color:var(--mid);margin-top:3px;line-height:1.5;}
.dt-roles{font-size:11px;color:var(--purple);font-weight:700;margin-top:6px;}
.dialog-role-info{padding:12px 0;margin-bottom:8px;text-align:center;font-size:12px;color:var(--mid);font-weight:700;border-bottom:1px solid var(--beige-dark);}
body.dark .dialog-role-info{border-color:rgba(255,255,255,.08);}
.dialog-messages{flex:1;overflow-y:auto;padding:12px 0;min-height:200px;max-height:calc(100vh - 260px);}
.dm{margin:8px 0;padding:12px 16px;border-radius:16px;font-size:14px;line-height:1.6;max-width:85%;word-wrap:break-word;}
.dm.user{background:linear-gradient(135deg,#4CAF7D,#2e7d57);color:#fff;margin-left:auto;border-bottom-right-radius:4px;}
.dm.ai{background:var(--white);color:var(--dark);box-shadow:var(--shadow);border-bottom-left-radius:4px;}
body.dark .dm.ai{background:#1a1a2c;border:1px solid rgba(255,255,255,.07);}
.dm-role{font-size:10px;font-weight:800;opacity:.6;margin-bottom:2px;}
.dialog-input-row{display:flex;gap:8px;padding:12px 0;align-items:center;position:sticky;bottom:0;background:var(--beige);}
body.dark .dialog-input-row{background:var(--beige);}
.dialog-mic-btn{width:48px;height:48px;border-radius:50%;border:none;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:22px;cursor:pointer;flex-shrink:0;transition:all .2s;}
.dialog-mic-btn.recording{background:var(--red);animation:micPulse 1s ease-in-out infinite;}
@keyframes micPulse{0%,100%{transform:scale(1);}50%{transform:scale(1.1);}}
.dialog-input-row input{flex:1;padding:12px 14px;border-radius:14px;border:1.5px solid var(--beige-dark);background:var(--white);font-family:'Nunito',sans-serif;font-size:14px;color:var(--dark);outline:none;}
body.dark .dialog-input-row input{background:#1a1a2c;border-color:rgba(255,255,255,.15);color:var(--dark);}
.dialog-send-btn{width:48px;height:48px;border-radius:14px;border:none;background:var(--green);color:#fff;font-size:20px;font-weight:800;cursor:pointer;flex-shrink:0;}

/* Detail sections (Words / Phrases / Exercises) */
.detail-section{margin:8px 16px 0;background:var(--white);border-radius:16px;box-shadow:var(--shadow);overflow:hidden;}
body.dark .detail-section{background:#1a1a2c;border:1px solid rgba(255,255,255,.07);}
.ds-header{display:flex;align-items:center;gap:8px;padding:12px 14px 8px;flex-wrap:wrap;}
.ds-icon{font-size:18px;}
.ds-title{font-size:14px;font-weight:800;flex-shrink:0;}
.ds-count{font-size:11px;font-weight:700;color:var(--mid);margin-left:auto;}
.ds-bar{flex:0 0 60px;height:6px;background:var(--beige-dark);border-radius:3px;overflow:hidden;}
body.dark .ds-bar{background:rgba(255,255,255,.1);}
.ds-bar-fill{height:100%;border-radius:3px;transition:width .3s;}
.ds-pct{font-size:11px;font-weight:800;min-width:32px;text-align:right;}
.ds-modes{display:flex;gap:6px;padding:6px 12px 12px;flex-wrap:wrap;}
.ds-btn{flex:1;min-width:70px;display:flex;flex-direction:column;align-items:center;gap:3px;padding:10px 6px;border-radius:12px;border:none;font-family:'Nunito',sans-serif;font-size:11px;font-weight:800;cursor:pointer;transition:transform .15s;background:var(--beige-dark);color:var(--dark);}
body.dark .ds-btn{background:rgba(255,255,255,.08);color:var(--dark);}
.ds-btn:active{transform:scale(.95);}
.ds-btn span:first-child{font-size:20px;}

/* Card direction toggle */
.card-dir-row{display:flex;gap:8px;margin:8px 16px 4px;}
.cdr-btn{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:8px 6px;border-radius:12px;border:2px solid var(--beige-dark);background:var(--white);font-family:'Nunito',sans-serif;cursor:pointer;transition:all .2s;opacity:.5;}
.cdr-btn.active{opacity:1;border-color:var(--green);background:rgba(76,175,125,.08);}
body.dark .cdr-btn{background:var(--white);border-color:rgba(255,255,255,.1);}
body.dark .cdr-btn.active{border-color:var(--green);background:rgba(76,175,125,.12);}
.cdr-top{font-size:12px;font-weight:800;color:var(--dark);}
.cdr-arrow{font-size:10px;color:var(--mid);line-height:1;}
.cdr-bot{font-size:11px;font-weight:700;color:var(--mid);}