:root{--bg:#f7f5f2;--surface:#fff;--border:#e8e4df;--text:#3a3733;--text-muted:#8c8580;--accent:#2d5016;--accent-light:#ebf2e3;--accent2:#c85a1b;--irreg:#c85a1b;--irreg-bg:#fdf0e8;--a1:#2d5016;--a2:#1a4a6b;--a2-bg:#e8f2f8;--b1:#5c2d91;--b1-bg:#eee8f6;--b2:#8b3a00;--b2-bg:#f8efe8;--c1:#1a5c6b;--c1-bg:#e3f3f6;--c2:#5c1a5c;--c2-bg:#f3e3f3;--shadow:0 2px 16px #1a171412;--radius:16px;--transition:.3s cubic-bezier(.4,0,.2,1)}[data-theme=dark]{--bg:#141210;--surface:#1e1c1a;--border:#2e2b28;--text:#f0ede8;--text-muted:#7a756f;--accent:#5a9e35;--accent-light:#1e2e14;--accent2:#e07840;--irreg:#e07840;--irreg-bg:#2a1c10;--a1:#5a9e35;--a2:#4a8ab0;--a2-bg:#0e1e2a;--b1:#9a6cd4;--b1-bg:#1e1028;--b2:#d4824a;--b2-bg:#2a1810;--c1:#3a9ab0;--c1-bg:#0e2028;--c2:#b06ab0;--c2-bg:#200e20;--shadow:0 2px 16px #0000004d}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-user-select:none;user-select:none;flex-direction:column;min-height:100vh;font-family:Outfit,sans-serif;display:flex}#root{flex-direction:column;min-height:100vh;display:flex}nav{background:var(--surface);border-bottom:1px solid var(--border);z-index:100;grid-template-columns:1fr auto 1fr;align-items:center;padding:12px 16px;display:grid;position:sticky;top:0}.nav-logo{color:var(--accent);letter-spacing:-.5px;justify-self:start;font-family:DM Serif Display,serif;font-size:24px}.nav-tabs{background:var(--bg);border-radius:10px;flex-shrink:0;gap:2px;padding:3px;display:flex}.nav-tab{color:var(--text-muted);cursor:pointer;transition:var(--transition);white-space:nowrap;background:0 0;border:none;border-radius:7px;padding:6px 7px;font-family:Outfit,sans-serif;font-size:14px;font-weight:500}.nav-tab.active{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}.nav-right{justify-self:end}@media (width<=480px){nav{grid-template-columns:minmax(85px,1fr) auto 1fr;padding:10px 12px}.nav-logo{font-size:22px;line-height:1;transform:translateY(-2px)}.nav-tab{padding:5px;font-size:13px}body{font-size:18px}.vocab-container{gap:12px}#vocabLevelFilter{margin-top:-4px;padding:0}#modal-meaning{font-size:16px!important}.modal-tense-label{font-size:13px!important}.modal-row-pron{font-size:16px!important}.modal-form-word{font-size:17px!important}.tense-name{font-size:19px}.tense-desc,.ref-subtitle{font-size:17px}.ending-row{font-size:16px}.ending-group-title{font-size:14px}.vocab-group-header .vocab-group-label{font-size:13px}}@media (width<=390px){nav{padding:8px 10px}.nav-tabs{padding:2px}.nav-tab{padding:4px;font-size:11px}}.page{flex:1;width:100%;display:none;overflow-x:hidden}.page.active{flex-direction:column;display:flex}#page-practice{align-items:center;gap:20px;padding:24px 16px}.cat-picker{width:260px;position:relative}.audio-prompt-banner{background:var(--surface);border:1.5px solid var(--border);color:var(--text);border-radius:12px;justify-content:space-between;align-items:center;gap:12px;margin-bottom:10px;padding:10px 16px;font-size:13px;display:flex}.audio-prompt-btn{cursor:pointer;white-space:nowrap;border-radius:8px;padding:5px 12px;font-family:Outfit,sans-serif;font-size:12px;font-weight:600}.audio-prompt-mute{border:1.5px solid var(--border);color:var(--text-muted);background:0 0}.audio-prompt-keep{background:var(--accent-light);border:1.5px solid var(--accent);color:var(--accent)}.audio-prompt-never{color:var(--text-muted);background:0 0;border:1.5px solid #0000;font-weight:400}.cat-picker-btn{border:1.5px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;transition:var(--transition);border-radius:20px;align-items:center;gap:10px;width:100%;padding:8px 16px;font-family:Outfit,sans-serif;font-size:14px;font-weight:500;display:flex}.cat-picker-btn:hover,.cat-picker-btn.active{border-color:var(--accent);color:var(--accent)}.cat-picker-prefix{color:var(--text-muted);border-right:1px solid var(--border);padding-right:10px;font-size:14px;font-weight:500}.cat-picker-arrow{color:var(--text-muted);margin-left:auto;font-size:10px;line-height:1;transition:transform .2s}.cat-picker.open .cat-picker-arrow{transform:rotate(180deg)}.cat-picker-panel{background:var(--surface);border:1px solid var(--border);z-index:200;border-radius:16px;padding:8px;display:none;position:absolute;top:calc(100% + 8px);left:0;right:0;box-shadow:0 8px 32px #0000001f}.cat-picker.open .cat-picker-panel{display:block}#vocabPicker .cat-picker-panel{width:min(400px,100vw - 60px);right:auto}.cat-group-header{letter-spacing:.8px;text-transform:uppercase;color:var(--text-muted);margin-top:4px;padding:8px 8px 4px;font-size:10px;font-weight:700}.cat-group-header:first-child{margin-top:0}.cat-group-items{flex-wrap:wrap;gap:4px;padding:0 4px 8px;display:flex}.cat-item{color:var(--text-muted);cursor:pointer;background:var(--bg);transition:var(--transition);border:none;border-radius:12px;padding:5px 12px;font-family:Outfit,sans-serif;font-size:13px;font-weight:500}.cat-item:hover{color:var(--accent);background:var(--accent-light)}.cat-item.active{background:var(--accent);color:#fff}.cat-item-all{border-radius:12px;justify-content:center;width:100%;margin-bottom:4px;padding:8px 12px;font-size:14px}.card-wrap{perspective:1000px;width:100%;max-width:520px}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);text-align:center;cursor:pointer;-webkit-user-select:none;user-select:none;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:clamp(320px,40vh,340px);padding:48px 52px 40px;transition:transform .15s,box-shadow .15s;display:flex;position:relative}.card:hover{transform:translateY(-2px);box-shadow:0 8px 32px #1a17141a}.card:active{transform:translateY(0)}@media (width<=480px){.card{padding:40px 20px 32px}}.card-stage-label{letter-spacing:.3px;color:var(--text-muted);font-size:14px;font-weight:700;position:absolute;top:16px;left:20px}.card-sound-btn{border:1px solid var(--border);background:var(--bg);cursor:pointer;width:34px;height:34px;transition:var(--transition);border-radius:8px;justify-content:center;align-items:center;font-size:16px;display:flex;position:absolute;top:12px;right:16px}.card-sound-btn:hover{background:var(--accent-light);border-color:var(--accent)}.pronoun-badge{color:var(--text-muted);background:var(--bg);letter-spacing:-.3px;border-radius:8px;padding:5px 14px;font-family:DM Serif Display,serif;font-size:22px;font-style:italic;font-weight:400}.card-infinitive{color:var(--text);letter-spacing:-1px;overflow-wrap:break-word;word-break:break-all;width:100%;font-family:DM Serif Display,serif;font-size:clamp(24px,11vw,48px);line-height:1.1}.card-meaning{color:var(--text-muted);font-size:clamp(14px,2vw,17px);font-weight:400}.card-level-badge{letter-spacing:.5px;border-radius:5px;padding:3px 9px;font-size:11px;font-weight:600}.level-a1{background:var(--accent-light);color:var(--accent)}.level-a2{background:var(--a2-bg);color:var(--a2)}.level-b1{background:var(--b1-bg);color:var(--b1)}.level-b2{background:var(--b2-bg);color:var(--b2)}.level-c1{background:var(--c1-bg);color:var(--c1)}.level-c2{background:var(--c2-bg);color:var(--c2)}.ref-level-filter{flex-wrap:wrap;gap:8px;display:flex}.ref-level-btn{border:1.5px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;transition:var(--transition);border-radius:20px;padding:4px 12px;font-family:Outfit,sans-serif;font-size:11px;font-weight:500}.ref-level-btn.active{background:var(--text);color:var(--surface);border-color:var(--text)}.vocab-group-header{cursor:pointer;border-bottom:1px solid var(--border);-webkit-user-select:none;user-select:none;justify-content:space-between;align-items:center;margin-top:8px;padding:10px 4px 6px;display:flex}.vocab-group-header:hover .vocab-group-label{color:var(--text)}.vocab-group-label{letter-spacing:.8px;text-transform:uppercase;color:var(--text-muted);font-size:11px;font-weight:700;transition:color .15s}.vocab-group-meta{color:var(--text-muted);align-items:center;gap:8px;font-size:12px;display:flex}.vocab-group-arrow{font-size:11px;transition:transform .2s;display:inline-block}.vocab-group-arrow.open{transform:rotate(180deg)}.vocab-group-content{flex-direction:column;gap:8px;padding-top:8px;display:flex}.vocab-group-content.hidden{display:none}.card-answer{flex-direction:column;align-items:center;gap:8px;width:100%;display:none}.card.revealed .card-answer{display:flex}.card.revealed .card-pre-reveal{display:none}.card-pre-reveal{flex-direction:column;align-items:center;gap:12px;width:100%;min-width:0;display:flex}.conjugated-form{color:var(--accent);letter-spacing:-1.5px;overflow-wrap:break-word;word-break:break-word;width:100%;font-family:DM Serif 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8px;font-size:16px;line-height:1;position:absolute;top:12px;left:50%;transform:translate(-50%)}.card-menu-btn:hover{color:var(--text)}.card-menu-dropdown{background:var(--surface);border:1px solid var(--border);z-index:10;transform-origin:0;border-radius:10px;min-width:90px;animation:.15s menuPopIn;position:absolute;top:8px;left:calc(50% + 20px);overflow:hidden;box-shadow:0 4px 16px #0000001f}@keyframes menuPopIn{0%{opacity:0;transform:scaleX(.7)}to{opacity:1;transform:scaleX(1)}}@keyframes menuPopInY{0%{opacity:0;transform:translate(-50%)scaleY(.7)}to{opacity:1;transform:translate(-50%)scaleY(1)}}@keyframes menuPopInUp{0%{opacity:0;transform:scaleY(.7)}to{opacity:1;transform:scaleY(1)}}.card-menu-btn.active,#modalMenuBtn.active{color:var(--accent)}.card-menu-dropdown button{text-align:left;width:100%;color:var(--text);cursor:pointer;text-align:center;transition:var(--transition);background:0 0;border:none;padding:6px 10px;font-size:12px;display:block}.card-menu-dropdown button:hover{background:var(--bg)}.test-setup{box-sizing:border-box;flex-direction:column;align-items:flex-start;gap:16px;width:100%;max-width:480px;margin:0 auto;padding:40px 24px;display:flex;overflow-x:hidden}.test-setup-title{color:var(--text);letter-spacing:-.5px;font-family:DM Serif Display,Noto Serif SC,serif;font-size:26px}.test-setup-sub{color:var(--text-muted);text-align:left;font-size:14px}.test-filters-summary{color:var(--text-muted);text-align:left;cursor:pointer;justify-content:flex-start;align-items:center;gap:6px;font-size:12px;line-height:1.5;display:flex}.test-filters-summary:hover{color:var(--text)}.test-filters-edit{opacity:.5;flex-shrink:0;font-size:12px}.test-filters-summary:hover .test-filters-edit{opacity:1}.test-count-label{color:var(--text-muted);align-self:flex-start;font-size:13px;font-weight:600}.test-cat-scroll-wrap{width:100%;min-width:0;position:relative}.test-cat-scroll-wrap:after{content:"";background:linear-gradient(to right, transparent 0%, var(--bg) 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var(--border);width:60px;color:var(--text-muted);text-align:center;background:0 0;border-radius:20px;outline:none;padding:3px 8px;font-family:Outfit,sans-serif;font-size:12px;font-weight:600}.test-custom-input:focus,.test-custom-input.active{border-color:var(--accent);color:var(--accent)}.test-timer-stepper{border:1.5px solid var(--border);transition:var(--transition);border-radius:20px;align-items:center;gap:6px;padding:4px 10px;display:flex}.test-timer-stepper.active{border-color:var(--accent);background:var(--accent-light)}.test-timer-stepper.active span,.test-timer-stepper.active button{color:var(--accent)}.test-timer-stepper span{color:var(--text-muted);text-align:center;min-width:28px;font-size:13px;font-weight:600}.test-timer-stepper button{cursor:pointer;color:var(--text-muted);background:0 0;border:none;align-items:center;padding:4px 6px;font-family:Outfit,sans-serif;font-size:15px;line-height:1;display:flex}.test-timer-stepper button:hover{color:var(--accent)}.test-stepper-input{width:36px;color:var(--text-muted);text-align:center;-moz-appearance:textfield;background:0 0;border:none;outline:none;font-family:Outfit,sans-serif;font-size:13px;font-weight:600}.test-stepper-input::-webkit-outer-spin-button{-webkit-appearance:none}.test-stepper-input::-webkit-inner-spin-button{-webkit-appearance:none}.test-timer-stepper.active .test-stepper-input{color:var(--accent)}.test-timer-stepper.disabled{opacity:.35;cursor:pointer}.test-start-btn{background:var(--accent);color:#fff;cursor:pointer;width:100%;transition:var(--transition);border:none;border-radius:14px;padding:12px 32px;font-family:Outfit,sans-serif;font-size:15px;font-weight:600}.test-start-btn:hover{opacity:.9}.test-start-btn:disabled{opacity:.4;cursor:default}.test-timer-bar{background:var(--border);border-radius:2px;height:4px;margin-bottom:12px;overflow:hidden}.test-timer-fill{background:var(--accent);border-radius:2px;height:100%;transition:width 1s linear}.test-timer-fill.urgent{background:var(--irreg)}.test-quiz{box-sizing:border-box;flex-direction:column;width:100%;max-width:552px;margin:0 auto;padding:0 16px 32px;display:flex}.test-progress-bar{background:var(--border);height:4px;margin-bottom:4px}.test-progress-fill{background:var(--accent);height:100%;transition:width .3s}.test-progress-label{color:var(--text-muted);justify-content:space-between;align-items:center;padding:4px 16px 8px;font-size:12px;display:flex;position:relative}.test-back-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:0;font-family:Outfit,sans-serif;font-size:12px}.test-back-btn:hover{color:var(--text)}.test-card{background:var(--surface);border-radius:var(--radius);width:100%;max-width:460px;box-shadow:var(--shadow);border:1px solid var(--border);flex-direction:column;gap:12px;min-height:clamp(260px,35vh,300px);margin:0 auto;padding:32px 28px 28px;display:flex;position:relative}.test-card-top{align-items:center;gap:8px;display:flex}.test-tense-label{color:var(--text-muted);flex:1;font-size:12px;font-weight:500}.test-card-clock{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:12px;font-weight:600}.test-card-clock.urgent{color:var(--irreg)}.test-total-clock{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:12px;font-weight:600;position:absolute;left:50%;transform:translate(-50%)}.test-results-time{color:var(--text-muted);font-variant-numeric:tabular-nums;margin-top:4px;font-size:14px}.test-card-inf{color:var(--text);word-break:break-word;overflow-wrap:break-word;font-family:DM Serif Display,serif;font-size:clamp(26px,11vw,48px)}.test-card-meaning{color:var(--text-muted);font-size:14px}.input-answer{box-sizing:border-box;border:1.5px solid var(--border);background:var(--bg);width:100%;color:var(--text);border-radius:12px;outline:none;padding:12px 14px;font-family:Outfit,sans-serif;font-size:18px;transition:border-color .2s,background .2s}.input-answer:focus{border-color:var(--accent)}.input-answer.correct{border-color:var(--accent);background:var(--accent-light)}.input-answer.wrong{border-color:var(--irreg);background:var(--irreg-bg)}.input-answer:disabled{opacity:1}.choice-options{grid-template-columns:1fr 1fr;gap:10px;margin:16px 0 8px;display:grid}.choice-btn{border:1.5px solid var(--border);background:var(--bg);color:var(--text);cursor:pointer;transition:var(--transition);text-align:center;border-radius:12px;padding:14px 10px;font-family:DM Serif Display,serif;font-size:16px;font-weight:600}.choice-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.choice-btn.correct{border-color:var(--accent);background:var(--accent-light);color:var(--accent)}.choice-btn.wrong{border-color:var(--irreg);background:var(--irreg-bg);color:var(--irreg)}.choice-btn.dimmed{opacity:.35}.choice-btn:disabled{cursor:default}.char-pills{flex-wrap:wrap;gap:6px;display:flex}.char-pill{border:1px solid var(--border);background:var(--bg);color:var(--text);cursor:pointer;transition:var(--transition);border-radius:8px;padding:4px 10px;font-family:Outfit,sans-serif;font-size:15px}.char-pill:hover{border-color:var(--accent);color:var(--accent)}.mic-btn.listening{border-color:var(--irreg);color:var(--irreg);animation:1s infinite pulse}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.test-feedback{padding:8px 0 0;font-size:14px;font-weight:500}.test-feedback.correct{color:var(--accent)}.test-feedback.correct-accent{color:#b07d00}.test-feedback.wrong{color:var(--irreg)}.test-quiz-actions{padding:16px 16px 0}.test-results{flex-direction:column;gap:20px;max-width:480px;margin:0 auto;padding:24px 16px 40px;display:flex}.test-results-score{text-align:center;padding:20px 0}.test-results-pct{color:var(--accent);font-family:DM Serif Display,serif;font-size:56px;line-height:1}.test-results-sub{color:var(--text-muted);margin-top:6px;font-size:15px}.test-results-list{flex-direction:column;gap:6px;display:flex}.test-result-row{background:var(--bg);border-radius:10px;justify-content:space-between;align-items:baseline;gap:8px;padding:10px 12px;display:flex}.test-result-row.correct,.test-result-row.correct_accent{background:var(--accent-light)}.test-result-row.wrong{background:var(--irreg-bg)}.test-result-left{flex-wrap:wrap;align-items:baseline;gap:6px;min-width:0;display:flex}.test-result-icon{font-size:13px}.test-result-row.correct .test-result-icon,.test-result-row.correct_accent .test-result-icon{color:var(--accent)}.test-result-row.wrong .test-result-icon{color:var(--irreg)}.test-result-pron{color:var(--text-muted);font-size:12px}.test-result-inf{color:var(--text);font-size:14px;font-weight:600}.test-result-tense{color:var(--text-muted);font-size:11px}.test-result-right{flex-direction:column;flex-shrink:0;align-items:flex-end;gap:2px;display:flex}.test-result-user{color:var(--irreg);font-size:13px;text-decoration:line-through}.test-result-answer{color:var(--text);font-size:14px;font-weight:600}.test-results-actions{flex-wrap:wrap;gap:10px;padding-top:8px;display:flex}.card-controls{justify-content:space-between;align-items:center;gap:12px;width:100%;max-width:520px;display:flex}.nav-arrow-btn{border:1.5px solid var(--border);background:var(--surface);cursor:pointer;width:48px;height:48px;transition:var(--transition);color:var(--text-muted);box-shadow:var(--shadow);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:20px;display:flex}.nav-arrow-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-light);transform:scale(1.05)}.nav-arrow-btn:active{transform:scale(.96)}.progress-wrap{align-items:center;gap:10px;display:flex}.progress-bar{background:var(--border);border-radius:2px;flex:1;min-width:80px;height:4px;overflow:hidden}.progress-fill{background:var(--accent);border-radius:2px;height:100%;transition:width .4s}.progress-count{color:var(--text-muted);white-space:nowrap;font-size:12px}#page-reference{align-items:center;padding:24px 16px}.ref-container{flex-direction:column;gap:24px;width:100%;max-width:860px;display:flex}.ref-header{color:var(--text);letter-spacing:-.5px;font-family:DM Serif Display,Noto Serif SC,serif;font-size:26px}.ref-subtitle{color:var(--text-muted);margin-top:4px;font-size:13px}.tense-block{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.tense-block-header{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:10px;padding:14px 16px;display:flex}.tense-name{font-size:15px;font-weight:600}.tense-level{border-radius:5px;flex-shrink:0;padding:3px 8px;font-size:11px;font-weight:700}.tense-block-body{padding:16px}.tense-desc{color:var(--text-muted);margin-bottom:14px;font-size:13px;line-height:1.6}.endings-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:14px;display:grid}@media (width<=600px){.endings-grid{grid-template-columns:1fr 1fr}}.modal-forms-grid{grid-template-columns:1fr 1fr;gap:4px 12px;display:grid}@media (width<=480px){.modal-forms-grid,.endings-grid{grid-template-columns:1fr}}.ending-group{background:var(--bg);border-radius:10px;min-width:0;padding:12px}.ending-group-title{letter-spacing:.5px;text-transform:uppercase;color:var(--text-muted);margin-bottom:8px;font-size:10px;font-weight:700}.ending-row{justify-content:space-between;align-items:center;gap:4px;padding:3px 0;font-size:12px;display:flex}.ending-pron{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;flex-shrink:0;min-width:fit-content;overflow:hidden}.ending-end{color:var(--accent);overflow-wrap:break-word;text-align:right;min-width:0;font-family:DM Serif Display,serif;font-size:14px;font-weight:600}.ending-end.irreg-ending{color:var(--irreg)}.example-verb{color:var(--text-muted);font-size:12px;line-height:1.7}.example-verb span{color:var(--text);font-weight:500}#page-settings{align-items:center;padding:24px 16px}.settings-container{flex-direction:column;gap:24px;width:100%;max-width:600px;display:flex}.settings-header{color:var(--text);font-family:DM Serif Display,Noto Serif SC,serif;font-size:30px}.settings-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.settings-section-title{letter-spacing:1px;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border);background:var(--bg);padding:14px 20px;font-size:12px;font-weight:700}.settings-row{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:16px;padding:16px 20px;display:flex}.settings-row:last-child{border-bottom:none}.settings-row-label{font-size:14px;font-weight:500}.settings-row-sub{color:var(--text-muted);margin-top:2px;font-size:12px}.toggle{flex-shrink:0;width:44px;height:24px;position:relative}.toggle input{opacity:0;width:0;height:0}.toggle-slider{background:var(--border);cursor:pointer;transition:var(--transition);border-radius:12px;position:absolute;inset:0}.toggle-slider:before{content:"";width:18px;height:18px;transition:var(--transition);background:#fff;border-radius:50%;position:absolute;top:3px;left:3px;box-shadow:0 1px 4px #0003}input:checked+.toggle-slider{background:var(--accent)}input:checked+.toggle-slider:before{transform:translate(20px)}.checkbox-grid{grid-template-columns:repeat(auto-fill,minmax(145px,1fr));gap:8px;width:100%;min-width:0;padding:16px 20px;display:grid}.checkbox-grid.disabled-section{opacity:.35}.checkbox-item{cursor:pointer;transition:var(--transition);border-radius:8px;align-items:center;gap:8px;padding:8px 10px;display:flex}.checkbox-item:hover{background:var(--bg)}.checkbox-item input{display:none}.checkbox-box{border:2px solid var(--border);width:18px;height:18px;transition:var(--transition);border-radius:5px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.checkbox-item input:checked~.checkbox-box{background:var(--accent);border-color:var(--accent)}.checkbox-item input:checked~.checkbox-box:after{content:"✓";color:#fff;font-size:11px;font-weight:700}.checkbox-label{font-size:13px;font-weight:500}.checkbox-sublabel{color:var(--text-muted);font-size:11px}.checkbox-item>div{min-width:0}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.animate-in{animation:.28s forwards fadeSlideUp}.speaking{animation:.6s infinite pulse}.lang-option-btn{border:1.5px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;transition:var(--transition);border-radius:8px;padding:8px 20px;font-family:Outfit,sans-serif;font-size:13px;font-weight:600}.lang-option-btn:hover{border-color:var(--accent);color:var(--accent)}.lang-option-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}#page-vocab{align-items:center;padding:24px 16px}.vocab-container{flex-direction:column;gap:20px;width:100%;max-width:860px;display:flex}.vocab-header-row{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px;display:flex}.vocab-search-wrap{align-items:center;display:flex;position:relative}.vocab-search-icon{color:var(--text-muted);pointer-events:none;font-size:18px;line-height:1;position:absolute;left:14px}.vocab-search-input{border:1.5px solid var(--border);background:var(--surface);width:100%;color:var(--text);box-sizing:border-box;border-radius:20px;outline:none;padding:9px 40px;font-family:Outfit,sans-serif;font-size:14px;transition:border-color .15s}.vocab-search-input:focus{border-color:var(--accent)}.vocab-search-input::placeholder{color:var(--text-muted)}.vocab-search-clear{color:var(--text-muted);cursor:pointer;background:0 0;border:none;padding:0 4px;font-size:18px;line-height:1;position:absolute;right:12px}.vocab-search-clear:hover{color:var(--text)}.vocab-match-hint{color:var(--text-muted);margin-top:2px;font-size:13px}.vocab-match-form{color:var(--accent);font-family:DM Serif Display,serif;font-style:italic}.vocab-match-tense{color:var(--text-muted);font-size:11px}.vocab-match-form{color:var(--accent);font-family:DM Serif Display,serif;font-size:13px;font-style:italic}.vocab-match-label{color:var(--text-muted);font-size:11px}.vocab-list{flex-direction:column;gap:8px;display:flex}.vocab-group-title{letter-spacing:.8px;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border);margin-top:8px;padding:8px 4px 4px;font-size:11px;font-weight:700}.vocab-item{background:var(--surface);border:1px solid var(--border);transition:var(--transition);cursor:pointer;-webkit-user-select:none;user-select:none;border-radius:12px;align-items:center;gap:14px;padding:12px 16px;display:flex}.vocab-item.mastered{opacity:.45;background:var(--bg)}.vocab-item.mastered .vocab-inf{color:var(--text-muted);text-decoration:line-through}.vocab-inf{color:var(--text);flex-shrink:0;min-width:110px;font-family:DM Serif Display,serif;font-size:17px}.vocab-meaning{color:var(--text-muted);min-width:0;font-size:13px}.vocab-meaning-en{color:var(--text);font-weight:500}.vocab-badges{flex-shrink:0;align-items:center;gap:6px;display:flex}.vocab-book{color:var(--text-muted);background:var(--border);white-space:nowrap;border-radius:5px;padding:2px 6px;font-size:10px;font-weight:600}.vocab-level{border-radius:5px;padding:2px 7px;font-size:10px;font-weight:700}.vocab-mastered-btn{border:2px solid var(--border);background:var(--bg);cursor:pointer;width:32px;height:32px;transition:var(--transition);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:15px;display:flex}.vocab-mastered-btn:hover{border-color:var(--accent);background:var(--accent-light)}.vocab-mastered-btn.is-mastered{border-color:var(--accent);background:var(--accent);color:#fff}.wrong-book-list{flex-direction:column;display:flex}.wrong-book-row{border-bottom:1px solid var(--border);align-items:flex-start;gap:12px;padding:12px 20px;display:flex}.wrong-book-row:last-child{border-bottom:none}.wrong-book-left{flex-direction:column;flex:1;gap:3px;min-width:0;display:flex}.wrong-book-inf{color:var(--text);font-size:15px;font-weight:700}.wrong-book-meaning{color:var(--text-muted);font-size:12px}.wrong-book-tenses{flex-wrap:wrap;gap:4px;margin-top:4px;display:flex}.wrong-book-tense-tag{background:var(--accent-light);color:var(--accent);border-radius:10px;padding:2px 7px;font-size:11px;font-weight:500}.wrong-book-right{flex-direction:column;flex-shrink:0;align-items:flex-end;gap:3px;display:flex}.wrong-book-count{color:var(--accent);font-size:15px;font-weight:700;line-height:1}.wrong-book-count-label{color:var(--text-muted);font-size:11px}.wrong-book-date{color:var(--text-muted);margin-top:4px;font-size:11px}.test-wrongbook-wrap{box-sizing:border-box;width:100%;max-width:520px;margin:0 auto;padding:8px 16px}@media (width<=480px){.test-wrongbook-wrap{max-width:100%}}.test-wrong-book-btn{background:var(--accent-light);border:1.5px solid var(--accent);width:100%;color:var(--accent);cursor:pointer;transition:var(--transition);border-radius:14px;justify-content:center;align-items:center;padding:12px 32px;font-family:Outfit,sans-serif;font-size:15px;font-weight:600;display:flex}.test-wrong-book-btn:hover{opacity:.85}.test-wrongbook-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:8px;padding:14px 20px;display:flex}.test-wrongbook-clear{color:var(--irreg);border:1px solid var(--irreg);cursor:pointer;white-space:nowrap;background:0 0;border-radius:8px;padding:5px 12px;font-family:Outfit,sans-serif;font-size:12px}.wrong-book-badge{background:var(--accent);color:#fff;border-radius:9px;justify-content:center;align-items:center;min-width:18px;height:18px;margin-left:8px;padding:0 5px;font-size:11px;font-weight:700;display:inline-flex}.wrong-book-row{cursor:pointer}.wrong-book-row:hover{background:var(--accent-light)}.wrong-book-inf-row{flex-wrap:wrap;align-items:baseline;gap:8px;display:flex}.wrong-book-forms{flex-direction:column;gap:4px;margin-top:6px;display:flex}.wrong-book-form-row{flex-direction:column;gap:2px;display:flex}.wrong-book-form-meta{align-items:center;gap:4px;display:flex}.wrong-book-form-pron{color:var(--text-muted);flex-shrink:0;font-size:11px}.wrong-book-form-tense{color:var(--text-muted);text-overflow:ellipsis;white-space:nowrap;flex-shrink:0;max-width:120px;font-size:11px;overflow:hidden}.wrong-book-form-correct{color:var(--accent);font-size:13px;font-weight:600}.wrong-book-hits{color:var(--text-muted);letter-spacing:2px;font-size:11px}.wrong-book-filter-bar{border-bottom:1px solid var(--border);flex-wrap:wrap;align-items:center;gap:6px;padding:10px 16px;display:flex}.wrong-book-filter-btn{border:1.5px solid var(--border);color:var(--text-muted);cursor:pointer;transition:var(--transition);white-space:nowrap;background:0 0;border-radius:20px;padding:4px 12px;font-family:Outfit,sans-serif;font-size:12px;font-weight:600}.wrong-book-filter-btn.active{border-color:var(--accent);background:var(--accent-light);color:var(--accent)}.wrong-book-form-tag{background:var(--irreg-bg);color:var(--irreg);border-radius:8px;padding:1px 5px;font-size:10px;font-weight:500}.wrong-book-form-tag.accent{background:var(--accent-light);color:var(--accent)}.wrong-book-select-btn{border:2px solid var(--border);background:var(--bg);cursor:pointer;width:22px;height:22px;transition:var(--transition);border-radius:50%;flex-shrink:0;align-self:center;margin-left:10px}.wrong-book-select-btn.selected{border-color:var(--accent);background:var(--accent)}.wrong-book-row.selected{background:var(--accent-light)}.wrong-book-practice-bar{background:var(--surface);border-top:1px solid var(--border);z-index:100;justify-content:space-between;align-items:center;gap:12px;padding:12px 20px;display:flex;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 16px #00000014}.wrong-book-practice-hint{color:var(--text-muted);font-size:13px}.split-btn{border-radius:12px;display:flex;position:relative;overflow:visible}.split-btn-main{background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-right:1px solid #fff3;border-radius:12px 0 0 12px;flex:1;padding:10px 16px;font-family:Outfit,sans-serif;font-size:14px;font-weight:600}.split-btn-arrow{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:0 12px 12px 0;padding:10px 12px;font-size:12px}.split-btn-main:hover,.split-btn-arrow:hover{filter:brightness(1.1)}.split-btn.disabled .split-btn-main,.split-btn.disabled .split-btn-arrow{opacity:.4;cursor:default;filter:none}.split-btn-dropdown{background:var(--surface);border:1px solid var(--border);white-space:nowrap;z-index:10;transform-origin:100% 100%;border-radius:10px;min-width:fit-content;animation:.15s menuPopInUp;position:absolute;bottom:calc(100% + 6px);right:0;overflow:hidden;box-shadow:0 4px 16px #0000001f}.split-btn-dropdown button{text-align:left;width:100%;color:var(--text);cursor:pointer;background:0 0;border:none;padding:8px 14px;font-family:Outfit,sans-serif;font-size:13px;display:block}.split-btn-dropdown button:hover{background:var(--bg)}.split-btn-dropdown button.active{color:var(--accent);font-weight:600}.wrong-book-practice-btn{background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;border:none;border-radius:12px;padding:10px 24px;font-family:Outfit,sans-serif;font-size:14px;font-weight:600}.wrong-book-practice-btn:disabled{opacity:.4;cursor:default}.wrong-book-select-all-btn{color:var(--accent);cursor:pointer;white-space:nowrap;background:0 0;border:none;padding:0;font-family:Outfit,sans-serif;font-size:13px;font-weight:600}.wrong-book-delete-btn{border:1.5px solid var(--irreg);color:var(--irreg);cursor:pointer;white-space:nowrap;background:0 0;border-radius:12px;padding:10px 18px;font-family:Outfit,sans-serif;font-size:14px;font-weight:600}.wrong-book-delete-btn:disabled{opacity:.3;cursor:default}