:root{
  --bg:#f3f5f9;--panel:#ffffff;--panel-2:#f8fafc;--text:#111827;--muted:#667085;--line:#e5e7eb;
  --brand:#111827;--brand-2:#1f2937;--accent:#f59e0b;--ok:#0f9f6e;--danger:#c24141;--info:#2563eb;
  --shadow:0 12px 30px rgba(15,23,42,.08);--radius:20px;--radius-sm:14px;--sidebar:282px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans Bengali",sans-serif;line-height:1.55}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}a{color:inherit}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:var(--sidebar);background:linear-gradient(180deg,#0b1220 0%,#111827 48%,#182235 100%);color:#fff;padding:18px 16px;display:flex;flex-direction:column;z-index:40;overflow:auto}.brand-row{display:flex;align-items:center;gap:12px;padding:4px 4px 18px}.brand-row>div:nth-child(2){display:flex;flex-direction:column;min-width:0}.brand-row strong{font-size:20px;letter-spacing:.04em}.brand-row small{color:#a8b2c3}.brand-mark{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,#fbbf24,#f59e0b);display:grid;place-items:center;color:#111827;font-weight:900;box-shadow:0 8px 24px rgba(245,158,11,.25)}.learner-card{display:flex;align-items:center;gap:10px;padding:12px;border:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.05);border-radius:16px;margin-bottom:12px}.learner-avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#fff;color:#111827;font-weight:800}.learner-card div{display:flex;flex-direction:column}.learner-card small{color:#9eabbc}.nav-list{display:flex;flex-direction:column;gap:5px}.nav-item{border:0;background:transparent;color:#cfd6e2;display:flex;align-items:center;gap:11px;text-align:left;padding:10px 12px;border-radius:12px;transition:.15s}.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.1);color:#fff}.nav-item.active{box-shadow:inset 3px 0 0 #f59e0b}.nav-item span{width:22px;text-align:center}.sidebar-foot{margin-top:auto;border-top:1px solid rgba(255,255,255,.08);padding:16px 4px 4px}.side-progress-head{display:flex;justify-content:space-between;font-size:13px}.sidebar-foot small{display:block;color:#9aa6b6;margin-top:8px}.progress-track{height:7px;border-radius:999px;background:rgba(255,255,255,.12);overflow:hidden;margin-top:7px}.progress-track span{display:block;height:100%;width:0;background:linear-gradient(90deg,#f59e0b,#fde68a);transition:width .25s}.main{margin-left:var(--sidebar);min-height:100vh;padding:0 28px 48px}.topbar{position:sticky;top:0;z-index:25;display:flex;align-items:center;justify-content:space-between;gap:20px;background:rgba(243,245,249,.92);backdrop-filter:blur(12px);padding:18px 0 14px;border-bottom:1px solid rgba(229,231,235,.75)}.topbar-left{display:flex;align-items:center;gap:12px}.topbar h1{font-size:22px;margin:0}.eyebrow,.section-tag{font-size:10px;font-weight:900;letter-spacing:.14em;color:#8a5b06;text-transform:uppercase}.top-actions,.hero-actions,.button-row,.field-row,.modal-head-actions{display:flex;gap:9px;align-items:center}.view{display:none;padding-top:24px}.view.active{display:block}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,.75fr);gap:20px}.hero-copy{background:linear-gradient(135deg,#111827,#23304a);color:white;border-radius:28px;padding:36px;min-height:320px;display:flex;flex-direction:column;justify-content:center;box-shadow:var(--shadow);overflow:hidden;position:relative}.hero-copy:after{content:"DE";position:absolute;right:-18px;bottom:-52px;font-size:170px;font-weight:900;color:rgba(255,255,255,.035)}.hero-badge{align-self:flex-start;padding:7px 10px;border-radius:999px;background:rgba(245,158,11,.16);color:#fcd34d;font-size:11px;font-weight:800;letter-spacing:.08em}.hero h2{font-size:clamp(28px,4vw,48px);line-height:1.12;max-width:850px;margin:18px 0 14px}.hero p{max-width:820px;color:#d7dce5;font-size:16px}.hero-actions{margin-top:14px}.trust-line{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:24px;font-size:12px;color:#cbd5e1}.today-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:28px;box-shadow:var(--shadow)}.today-card h3{font-size:22px;margin:7px 0 18px}.daily-step{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}.daily-step b{width:54px;color:#8a5b06}.daily-step span{color:#374151}.primary-btn,.ghost-btn,.danger-btn,.icon-btn{border-radius:12px;border:1px solid transparent;min-height:42px;padding:9px 14px;font-weight:750;transition:.15s}.primary-btn{background:#111827;color:#fff}.primary-btn:hover{background:#263247}.ghost-btn{background:#fff;border-color:#d5dae3;color:#202938}.ghost-btn:hover{background:#f8fafc}.danger-btn{background:#fff1f2;color:#a8293b;border-color:#fecdd3}.icon-btn{width:42px;padding:0;display:grid;place-items:center;background:#fff;border-color:#d9dee8}.block{width:100%;margin-top:15px}.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.metric-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.metric-grid span,.metric-grid small{display:block;color:var(--muted);font-size:12px}.metric-grid strong{display:block;font-size:25px;margin:5px 0}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:8px 0 16px}.section-heading.compact{margin-top:28px}.section-heading h2,.section-heading h3{margin:4px 0 0;font-size:27px}.section-heading p{margin:6px 0 0;color:var(--muted)}.section-stat{text-align:right}.section-stat strong{font-size:28px;display:block}.section-stat span{color:var(--muted);font-size:12px}.module-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.module-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;text-align:left;box-shadow:0 6px 18px rgba(15,23,42,.045);transition:.18s}.module-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.module-card>span{font-size:29px}.module-card h3{margin:12px 0 4px}.module-card p{margin:0;color:var(--muted);font-size:13px}.level-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.level-tab{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 15px;font-weight:800}.level-tab.active{background:#111827;color:#fff}.level-summary{padding:20px;margin-bottom:14px}.level-summary h3{margin:0 0 5px;font-size:24px}.level-summary p{margin:0;color:var(--muted)}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.lesson-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px;text-align:left;position:relative;min-height:170px}.lesson-card.done{border-color:#a7f3d0;background:#f5fffb}.lesson-card .lesson-icon{font-size:25px}.lesson-card h3{margin:12px 0 6px}.lesson-card p{margin:0;color:var(--muted);font-size:13px}.lesson-meta{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font-size:12px;color:#667085}.done-badge{color:#0f9f6e;font-weight:900}.toolbar{display:flex;gap:10px;align-items:center;padding:12px;margin-bottom:14px;flex-wrap:wrap}.toolbar input,.toolbar select,.field-row select,.translator-grid textarea,.corrector-box textarea,.skill-card textarea{border:1px solid #d7dce5;border-radius:12px;background:#fff;padding:10px 12px;outline:none}.toolbar input{min-width:250px;flex:1}.toolbar input:focus,.toolbar select:focus,textarea:focus,select:focus{border-color:#9aa7bb;box-shadow:0 0 0 3px rgba(17,24,39,.05)}.vocab-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.vocab-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:16px;position:relative}.vocab-visual{height:92px;border-radius:15px;background:linear-gradient(135deg,#f8fafc,#eef2f7);display:grid;place-items:center;font-size:54px;margin-bottom:12px}.vocab-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px}.vocab-head h3{margin:0;font-size:21px}.article{font-size:12px;font-weight:900;color:#9a6504}.vocab-level{display:inline-flex;padding:3px 8px;border-radius:999px;background:#f1f5f9;color:#475569;font-size:10px;font-weight:800}.vocab-card p{margin:4px 0;color:#475569}.vocab-card small{color:#667085}.vocab-actions{display:flex;gap:7px;margin-top:12px}.vocab-actions button{flex:1;padding:7px 8px;min-height:36px;font-size:12px}.phrase-list,.professional-list{display:grid;gap:12px}.phrase-card,.professional-card{padding:18px}.phrase-top,.pro-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}.phrase-card h3,.professional-card h3{margin:4px 0 7px;font-size:20px}.phrase-card p,.professional-card p{margin:4px 0}.translation-line{color:#374151}.pron-line{color:#80570a}.meta-chips{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px}.chip{padding:4px 8px;border-radius:999px;background:#f1f5f9;color:#475569;font-size:11px;font-weight:750}.split-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:14px}.list-panel,.detail-panel{padding:14px;min-height:480px}.list-panel select{width:100%;margin-bottom:10px;border:1px solid var(--line);padding:9px;border-radius:10px}.grammar-item{display:block;width:100%;text-align:left;border:0;background:transparent;border-radius:12px;padding:11px;margin-bottom:4px}.grammar-item.active,.grammar-item:hover{background:#f1f5f9}.grammar-item b{display:block}.grammar-item small{color:#667085}.detail-panel h2{margin-top:5px}.rule-box,.memory-box,.example-box,.mistake-box{border-radius:14px;padding:15px;margin-top:12px}.rule-box{background:#f8fafc;border:1px solid #e2e8f0}.memory-box{background:#fff7ed;border:1px solid #fed7aa}.example-box{background:#f0fdf4;border:1px solid #bbf7d0}.mistake-box{background:#fff1f2;border:1px solid #fecdd3}.memory-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.memory-grid article{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.memory-grid h3{margin:8px 0}.memory-grid p{color:#4b5563;margin:0}.recall-card{padding:22px;margin-top:14px;text-align:center}.recall-card h3{font-size:30px;margin:12px 0}.recall-answer{font-size:18px;padding:15px;border-radius:14px;background:#f8fafc;margin:12px 0}.skill-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.skill-card{padding:20px}.skill-card>span{font-size:32px}.skill-card h3{margin:8px 0}.skill-card textarea{width:100%;resize:vertical}.speech-result{margin-top:12px;background:#f8fafc;border-radius:12px;padding:12px;color:#475569}.translator-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.translator-grid .card,.corrector-box{padding:18px}.translator-grid textarea,.corrector-box textarea{width:100%;resize:vertical;margin:10px 0}.field-row select{flex:1}.result-card{min-height:260px}.translate-output{white-space:pre-wrap;margin-top:14px}.corrector-result{margin-top:12px}.exam-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.exam-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.exam-card h3{margin:9px 0}.exam-card p{color:var(--muted)}.exam-card .exam-meta{display:flex;justify-content:space-between;margin:12px 0;font-size:12px}.review-card{padding:22px;margin-top:14px;min-height:260px}.review-word{text-align:center}.review-word .visual{font-size:65px}.review-word h2{font-size:32px;margin:6px 0}.review-word .answer{background:#f8fafc;border-radius:14px;padding:14px;margin:12px 0}.rating-row{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.rating-row button{border:1px solid var(--line);background:#fff;padding:10px;border-radius:11px}.progress-summary{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:14px}.progress-level{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.progress-level h3{margin:0 0 9px}.mini-bar{height:7px;background:#edf0f4;border-radius:999px;overflow:hidden}.mini-bar span{display:block;height:100%;background:#111827}.file-label{display:inline-flex;align-items:center;justify-content:center}.wrap{flex-wrap:wrap}.quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.quality-grid article{padding:18px}.quality-grid article>span{width:38px;height:38px;border-radius:12px;background:#111827;color:#fff;display:grid;place-items:center;font-weight:900}.quality-grid h3{margin:10px 0 5px}.quality-grid p{margin:0;color:#4b5563}.notice-card{padding:18px;margin-top:14px;background:#fffbeb;border-color:#fde68a}.modal-backdrop{position:fixed;inset:0;background:rgba(2,6,23,.68);z-index:90;display:grid;place-items:center;padding:18px}.modal-backdrop[hidden]{display:none!important}.modal{width:min(900px,100%);max-height:92vh;overflow:auto;padding:22px}.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;position:sticky;top:-22px;background:#fff;padding:4px 0 12px;z-index:3;border-bottom:1px solid var(--line)}.modal-head h2{margin:4px 0 0}.lesson-flow{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;margin:14px 0}.lesson-step{padding:9px 4px;text-align:center;border-radius:9px;background:#f1f5f9;font-size:11px}.lesson-content-block{padding:16px;border:1px solid var(--line);border-radius:14px;margin:12px 0}.lesson-content-block h3{margin-top:0}.vocab-modal-visual{font-size:92px;text-align:center;padding:8px}.vocab-detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.vocab-detail-grid div{background:#f8fafc;padding:11px;border-radius:11px}.exam-question{border:1px solid var(--line);border-radius:14px;padding:15px;margin:12px 0}.exam-question h4{margin:0 0 10px}.exam-option{display:flex;gap:9px;align-items:flex-start;padding:8px;border-radius:9px}.exam-option:hover{background:#f8fafc}.exam-option input{margin-top:4px}.exam-result{padding:18px;border-radius:14px;background:#f0fdf4;border:1px solid #bbf7d0;margin-top:14px}.toast{position:fixed;right:20px;bottom:20px;z-index:150;background:#111827;color:white;border-radius:12px;padding:12px 16px;box-shadow:var(--shadow);opacity:0;transform:translateY(12px);pointer-events:none;transition:.2s;max-width:min(420px,calc(100vw - 40px))}.toast.show{opacity:1;transform:translateY(0)}.sidebar-backdrop{position:fixed;inset:0;background:rgba(2,6,23,.5);z-index:35}.sidebar-backdrop[hidden]{display:none!important}.mobile-only{display:none}.empty-state{text-align:center;padding:34px;color:#667085}.muted{color:var(--muted)}.success{color:var(--ok)}.danger{color:var(--danger)}
@media (max-width:1200px){.module-grid,.vocab-grid{grid-template-columns:repeat(3,1fr)}.lesson-grid{grid-template-columns:repeat(2,1fr)}.exam-grid{grid-template-columns:repeat(2,1fr)}.quality-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:920px){.mobile-only{display:grid}.sidebar{transform:translateX(-102%);transition:transform .2s}.sidebar.open{transform:translateX(0)}.main{margin-left:0;padding:0 16px 42px}.topbar{padding-top:12px}.top-actions #voiceTestBtn{display:none}.hero{grid-template-columns:1fr}.metric-grid{grid-template-columns:repeat(2,1fr)}.module-grid{grid-template-columns:repeat(2,1fr)}.vocab-grid{grid-template-columns:repeat(2,1fr)}.split-layout{grid-template-columns:1fr}.list-panel{min-height:auto}.detail-panel{min-height:360px}.skill-grid,.translator-grid{grid-template-columns:1fr}.progress-summary{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.main{padding-left:12px;padding-right:12px}.topbar h1{font-size:18px}.hero-copy,.today-card{border-radius:20px;padding:20px}.hero h2{font-size:29px}.hero p{font-size:14px}.hero-actions{flex-direction:column;align-items:stretch}.trust-line{display:grid;gap:6px}.metric-grid,.module-grid,.lesson-grid,.vocab-grid,.exam-grid,.memory-grid,.quality-grid,.progress-summary{grid-template-columns:1fr}.section-heading{align-items:flex-start;flex-direction:column}.toolbar{align-items:stretch}.toolbar input,.toolbar select,.toolbar button{width:100%;min-width:0}.phrase-top,.pro-top{flex-direction:column}.lesson-flow{grid-template-columns:repeat(2,1fr)}.vocab-detail-grid{grid-template-columns:1fr}.rating-row{grid-template-columns:repeat(2,1fr)}.modal-backdrop{padding:0}.modal{width:100%;height:100%;max-height:100%;border-radius:0;padding:16px}.modal-head{top:-16px}.top-actions .primary-btn{padding:7px 10px;min-height:38px}.field-row{flex-wrap:wrap}.field-row select{min-width:75%}}

/* Global German word interaction: tap/click = pronunciation + compact Bangla meaning. */
[data-german-text] .de-word{cursor:pointer;border-radius:4px;padding:0 .04em;transition:background-color .12s ease,box-shadow .12s ease;text-decoration:underline;text-decoration-style:dotted;text-decoration-thickness:1px;text-underline-offset:3px;text-decoration-color:rgba(245,158,11,.55)}
[data-german-text] .de-word:hover{background:rgba(245,158,11,.12)}
[data-german-text] .de-word:focus-visible{outline:2px solid currentColor;outline-offset:2px}
[data-german-text] .de-word.de-word-active{background:rgba(245,158,11,.24);box-shadow:0 0 0 2px rgba(245,158,11,.16)}
.de-word-bubble{position:fixed;z-index:10000;min-width:120px;max-width:220px;padding:7px 10px;border-radius:10px;background:#111827;color:#fff;box-shadow:0 10px 30px rgba(0,0,0,.24);font-size:13px;line-height:1.25;pointer-events:none}
.de-word-bubble b{display:block;font-size:13px;margin-bottom:2px}.de-word-bubble span{display:block;color:#fef3c7;font-size:12px}
.de-word-bubble[hidden]{display:none!important}
@media (prefers-color-scheme:dark){.de-word-bubble{background:#f9fafb;color:#111827}.de-word-bubble span{color:#92400e}}

/* Pronunciation, games and Germany-life modules */
.pronunciation-setup{display:grid;grid-template-columns:minmax(240px,1fr) minmax(190px,.55fr) auto;gap:14px;align-items:end;padding:18px;margin-bottom:14px}.pronunciation-setup>div{display:flex;flex-direction:column;gap:6px}.pronunciation-setup select{border:1px solid #d7dce5;border-radius:12px;background:#fff;padding:10px 12px;min-height:44px}.pronunciation-setup small{color:var(--muted)}.native-target{padding:16px 18px;background:#eff6ff;border-color:#bfdbfe;margin-bottom:14px}.pronunciation-grid{display:grid;gap:6px}.pron-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.pron-card{padding:18px}.pron-card h3{margin:7px 0 4px}.pron-card p{margin:7px 0}.pron-symbol{display:inline-flex;padding:5px 9px;border-radius:999px;background:#111827;color:#fff;font-weight:800;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.pron-examples{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px}.pron-examples .ghost-btn{min-height:34px;padding:6px 9px;font-size:12px}.shadow-card{padding:20px}.shadow-card h3{font-size:24px;margin:16px 0 4px}.shadow-card #shadowText{font-size:22px;margin:8px 0}.game-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.game-card{padding:20px}.game-card>span{font-size:34px}.game-card h3{margin:7px 0}.game-options{display:grid;grid-template-columns:repeat(2,1fr);gap:8px;margin:14px 0}.game-options button{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px;font-weight:750}.game-options button:hover{background:#f8fafc}.game-options button.game-correct{background:#ecfdf5;border-color:#86efac}.game-options button.game-wrong{background:#fff1f2;border-color:#fda4af}.germany-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.germany-card{padding:20px}.germany-card h3{margin:5px 0 10px}.germany-card>p{margin:7px 0}.germany-icon{font-size:38px;display:block;margin-bottom:8px}
@media (max-width:1100px){.pron-card-grid{grid-template-columns:repeat(2,1fr)}.pronunciation-setup{grid-template-columns:1fr 1fr}.pronunciation-setup .primary-btn{grid-column:1/-1}.game-grid{grid-template-columns:1fr 1fr}}
@media (max-width:700px){.pron-card-grid,.game-grid,.germany-grid,.pronunciation-setup{grid-template-columns:1fr}.pronunciation-setup .primary-btn{grid-column:auto}.shadow-card #shadowText{font-size:19px}.pron-examples .ghost-btn{flex:1 1 42%}}

/* 17K dictionary */
.dictionary-toolbar{display:grid;grid-template-columns:minmax(240px,1fr) 180px auto;gap:10px;align-items:center}
.dictionary-status{margin:12px 0;padding:14px 16px}
.dictionary-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.dictionary-row{padding:16px}
.dictionary-main{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.dictionary-main h3{margin:5px 0 0;font-size:1.08rem}
.dictionary-row p{margin:8px 0 0}
@media(max-width:760px){
  .dictionary-toolbar{grid-template-columns:1fr}
  .dictionary-results{grid-template-columns:1fr}
}

/* Foundation lesson system */
.lesson-loading{padding:40px;text-align:center;color:var(--muted,#667085)}
.lesson-focus{padding:18px;border-radius:16px;background:var(--soft,#f6f7fb);margin-bottom:16px}
.lesson-focus h3,.lesson-focus h4{margin:10px 0 6px}.lesson-focus p{margin:0 0 10px}
.alphabet-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}
.alphabet-card{display:flex;flex-direction:column;align-items:center;gap:5px;padding:12px 8px;border:1px solid var(--border,#e5e7eb);border-radius:14px;background:#fff;text-align:center}
.alphabet-letter{border:0;background:transparent;font-size:1.8rem;font-weight:800;cursor:pointer}
.alphabet-card small{color:var(--muted,#667085)}
.alphabet-example{border:0;background:transparent;font-weight:700;cursor:pointer;text-decoration:underline;text-decoration-style:dotted}
.alphabet-card span{font-size:.78rem;color:var(--muted,#667085)}
.lesson-block-head{display:flex;justify-content:space-between;gap:14px;align-items:flex-start}
.lesson-rule-list{display:grid;gap:10px}.lesson-rule-list>div{display:grid;grid-template-columns:32px 1fr;gap:10px;align-items:start}.lesson-rule-list b{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:#111827;color:#fff}.lesson-rule-list p{margin:4px 0}
.example-stack{display:grid;gap:8px}.example-stack>div{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;border:1px solid var(--border,#e5e7eb);border-radius:12px}
.lesson-word-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;max-height:560px;overflow:auto;padding-right:3px}
.lesson-word{display:grid;grid-template-columns:30px 1fr auto;gap:9px;align-items:start;padding:10px;border:1px solid var(--border,#e5e7eb);border-radius:12px;background:#fff}
.lesson-word p,.lesson-word small{margin:3px 0;display:block}.lesson-word small{color:var(--muted,#667085)}.word-no{font-size:.75rem;color:var(--muted,#667085);padding-top:3px}
.dialogue-box{padding:14px;border-left:4px solid #111827;background:var(--soft,#f6f7fb);border-radius:8px;margin-bottom:10px}.dialogue-box p{margin:6px 0}
.task-list{padding-left:22px}.task-list li{margin:8px 0}
@media(max-width:760px){.alphabet-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.lesson-word-grid{grid-template-columns:1fr;max-height:none}.lesson-block-head{flex-direction:column}}