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.15s,transform .12s;display:flex}.library-content .library-item:last-child{margin-bottom:0}.library-content .library-item:hover{background:var(--app-line-soft);border-color:var(--app-text-dim)}.library-content .library-item:active{transform:scale(.995)}.item-icon{background:var(--app-bg);width:42px;height:42px;color:var(--app-highlight);border-radius:11px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.item-icon .lib-icon{width:21px;height:21px}.item-text{flex:1;min-width:0}.library-item .item-text strong{color:var(--app-text);overflow-wrap:anywhere;font-size:16px;font-weight:600;display:block}.library-item .item-text small{color:var(--app-text-muted);overflow-wrap:anywhere;margin-top:3px;font-size:12px;display:block}.item-count{white-space:nowrap;color:var(--app-text-muted);flex-shrink:0;font-size:12px}.item-chevron{color:var(--app-text-dim);flex-shrink:0;display:flex}.item-chevron .lib-chevron{width:18px;height:18px}.library-content .section-row{border:1px solid var(--app-line);background:var(--app-surface);border-radius:14px;align-items:center;gap:10px;width:100%;margin-bottom:10px;padding:8px 14px 8px 8px;transition:background .15s,border-color .15s;display:flex}.library-content .section-row:hover{background:var(--app-line-soft);border-color:var(--app-text-dim)}.section-row .item-main{min-width:0;color:inherit;font:inherit;text-align:left;cursor:pointer;background:0 0;border:0;border-radius:10px;flex:1;align-items:center;gap:14px;padding:8px 6px;display:flex}.section-row .item-main:active{transform:scale(.995)}.section-row .item-main .item-icon{color:var(--app-highlight)}.section-row .item-edit{border:1px solid var(--app-line);background:var(--app-bg);color:var(--app-text-muted);cursor:pointer;white-space:nowrap;border-radius:10px;flex-shrink:0;align-items:center;gap:5px;padding:8px 12px;font-family:inherit;font-size:12px;font-weight:600;transition:background .15s,color .15s,border-color .15s;display:inline-flex}.section-row .item-edit:hover{background:var(--app-surface);color:var(--app-text);border-color:var(--app-text-dim)}.section-row .item-edit .lib-icon{width:15px;height:15px}@media (width<=639px){.section-row .item-edit span{display:none}.section-row .item-edit{padding:9px}}.folder-mark{display:none}.library-empty{color:var(--app-text-muted);text-align:center;padding:48px 0;line-height:1.8}.library-empty h3{color:var(--app-text);margin-bottom:12px;font-size:20px}.library-hint{color:var(--app-text-muted);margin:4px 0 16px;font-size:13px;line-height:1.7}.sentence-row{border-bottom:1px solid var(--app-line);padding:22px 0}.sentence-row-meta{color:var(--app-text-muted);flex-wrap:wrap;justify-content:space-between;gap:12px;margin-bottom:12px;font-size:12px;display:flex}.audio-status.ready{color:var(--app-en)}.audio-status.queued,.audio-status.generating{color:var(--app-progress)}.audio-status.failed{color:var(--app-danger)}.sentence-ja{overflow-wrap:anywhere;color:var(--app-text);font-size:18px;line-height:1.7}.sentence-en{font-family:var(--font-en);color:var(--app-en);overflow-wrap:anywhere;margin-top:8px;font-size:18px;line-height:1.6}.sentence-note{color:var(--app-text-muted);overflow-wrap:anywhere;margin-top:8px;font-size:13px}.row-actions{flex-wrap:wrap;gap:8px;margin-top:16px;display:flex}.library-editor{width:min(650px,100vw);max-width:none;max-height:88dvh}.library-editor form{flex-direction:column;max-height:88dvh;display:flex}.editor-heading{border-bottom:1px solid var(--app-line);flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:24px 24px 18px;display:flex}.editor-heading h2{color:var(--app-text);font-size:20px;font-weight:600}.editor-heading button{background:0 0;border-color:#0000;font-size:24px}.editor-fields{overscroll-behavior:contain;min-height:0;padding:24px;overflow-y:auto}.editor-field{flex-direction:column;gap:8px;margin-bottom:18px;font-size:14px;display:flex}.editor-field>span{color:var(--app-text-muted)}.editor-field input,.editor-field textarea,.editor-field select{border:1px solid var(--app-line);width:100%;min-width:0;color:var(--app-text);background:var(--app-bg);border-radius:10px;padding:12px;font-size:16px;line-height:1.6}.editor-field input:focus,.editor-field textarea:focus,.editor-field select:focus{box-shadow:0 0 0 2px var(--app-highlight);outline:none}.editor-field textarea{resize:vertical}.editor-grid{grid-template-columns:1fr 1fr;gap:16px;display:grid}.editor-footer{border-top:1px solid var(--app-line);flex-wrap:wrap;flex-shrink:0;justify-content:flex-end;gap:10px;padding:16px 24px;display:flex}.editor-error:not(:empty){padding:0 24px 12px}.draft-pair{border-top:1px solid var(--app-line);padding:18px 0 0}.draft-pair legend{color:var(--app-highlight);padding-right:12px;font-size:14px}.draft-pair legend label{align-items:center;gap:8px;min-height:44px;display:flex}.draft-pair input[type=checkbox]{width:22px;height:22px}@media (width<=639px){.library-dialog{border-radius:22px 22px 0 0;width:100%;height:92dvh}.library-top{padding:max(16px, env(safe-area-inset-top)) 18px 16px}.library-top h2{font-size:22px}.library-toolbar{padding:16px 18px 8px}.library-content{padding:12px 18px max(24px, env(safe-area-inset-bottom))}.library-error:not(:empty){padding:8px 18px}.library-editor{border-radius:22px 22px 0 0;width:100%;max-height:calc(100dvh - 20px);margin:auto 0 0}.library-editor form{max-height:calc(100dvh - 20px)}.editor-heading{padding:14px 18px}.editor-fields{padding:20px 18px}.editor-footer{padding:14px 18px max(18px, env(safe-area-inset-bottom))}.library-item strong{font-size:17px}}.app-header{background:var(--app-header-bg)!important;border-bottom-color:var(--app-line)!important}.app-brand{color:var(--app-highlight)!important}.app-brand span{color:var(--app-text-dim)!important}#folder-select,#section-select{background:var(--app-surface)!important;border-color:var(--app-line)!important;color:var(--app-text)!important}.header-action-btn{background:var(--app-surface)!important;color:var(--app-text)!important;border:1px solid var(--app-line)!important}.header-action-btn:hover{background:var(--app-line-soft)!important}.study-card{background:var(--app-bg-elev)!important;border:1px solid var(--app-line)!important;box-shadow:var(--app-card-shadow)!important}@media (width<=639px){.study-card{box-shadow:none!important;background:0 0!important;border:0!important}}#text-ja{color:var(--app-text)!important}#badge-index{background:var(--app-surface)!important;color:var(--app-text)!important}#badge-theme{color:var(--app-text-muted)!important}#btn-edit-sentence{background:var(--app-surface)!important;border-color:var(--app-line)!important;color:var(--app-text)!important}#en-card{background:var(--app-bg)!important;border:1px solid var(--app-line-soft)!important}#en-card.border-emerald-500\/50{border-color:var(--app-en)!important;background:radial-gradient(circle at center, var(--app-surface), var(--app-bg))!important}#text-en{color:var(--app-en)!important}#text-notes{background:var(--app-surface)!important;border-color:var(--app-line)!important;color:var(--app-text-muted)!important}#en-placeholder{color:var(--app-text-muted)!important}#en-placeholder span:last-child{color:var(--app-text-dim)!important}#hint-card{background:var(--app-surface);border:1px solid var(--app-line);border-radius:14px;padding:12px 16px}#hint-card.hidden{display:none}.hint-inner{align-items:flex-start;gap:10px;display:flex}.hint-label{color:var(--app-highlight);background:var(--app-bg);border:1px solid var(--app-line);white-space:nowrap;border-radius:6px;flex-shrink:0;padding:2px 8px;font-size:11px;font-weight:700;line-height:1.6}.hint-text{color:var(--app-text-muted);overflow-wrap:anywhere;flex:1;margin:0;font-size:13px;line-height:1.7}#gap-progress>div:first-child{background:var(--app-track)!important}#gap-progress-bar{background:var(--app-progress)!important}#gap-label,#gap-time{color:var(--app-text-dim)!important}.playback-dock{background:var(--app-bg)!important;border-top-color:var(--app-line)!important}.playback-dock button:not(#btn-play-pause){background:var(--app-surface)!important;border-color:var(--app-line)!important;color:var(--app-text)!important}.playback-dock .control-caption{color:var(--app-text-muted)!important}#btn-play-pause{background:var(--app-action)!important;color:var(--app-on-action)!important;box-shadow:none!important}#btn-play-pause svg{fill:var(--app-on-action)!important}.qa-fab{background:var(--app-action)!important;color:var(--app-on-action)!important;box-shadow:0 4px 14px -4px #0006!important}#settings-modal,#feedback-modal,#qa-drawer{background:var(--app-bg-elev)!important;border-color:var(--app-line)!important;color:var(--app-text)!important}#settings-modal h3,#feedback-modal h3,#qa-drawer .font-bold,#settings-modal span.text-slate-300,#settings-modal p.text-slate-200{color:var(--app-text)!important}#settings-modal p.text-slate-400,#feedback-modal p.text-slate-500{color:var(--app-text-muted)!important}#settings-modal input[type=range]{accent-color:var(--app-highlight)}#val-gap-ja,#val-gap-en,#val-rate{color:var(--app-highlight)!important}#feedback-input,#qa-input{background:var(--app-bg)!important;border-color:var(--app-line)!important;color:var(--app-text)!important}#feedback-context,#drawer-context-ja{background:var(--app-bg)!important;border-color:var(--app-line-soft)!important}#qa-drawer-backdrop{-webkit-backdrop-filter:none;backdrop-filter:none;background:#00000052}.qa-sheet{z-index:40;background:var(--app-bg-elev);border-top:1px solid var(--app-line);will-change:transform;border-radius:22px 22px 0 0;flex-direction:column;height:70dvh;max-height:70dvh;transition:transform .32s cubic-bezier(.22,1,.36,1);display:flex;position:fixed;inset:auto 0 0;transform:translateY(100%);box-shadow:0 -12px 40px -12px #0000008c}.qa-sheet.qa-open{transform:translateY(0)}.qa-sheet:before{content:"";background:var(--app-line);border-radius:9999px;width:40px;height:4px;position:absolute;top:8px;left:50%;transform:translate(-50%)}@media (width>=720px){.qa-sheet{border-left:1px solid var(--app-line);border-right:1px solid var(--app-line);width:min(680px,94vw);left:50%;right:auto;transform:translate(-50%,100%)}.qa-sheet.qa-open{transform:translate(-50%)}}@media (prefers-reduced-motion:reduce){.qa-sheet{transition:none}}.qa-head{border-bottom:1px solid var(--app-line);background:var(--app-bg-elev);border-radius:22px 22px 0 0;justify-content:space-between;align-items:center;padding:20px 16px 16px;display:flex}.qa-head-icon{color:var(--app-highlight);display:flex}.qa-head-title{color:var(--app-text);font-size:14px;font-weight:700}.qa-icon-btn{color:var(--app-text-muted);cursor:pointer;background:0 0;border:0;border-radius:8px;padding:6px;transition:color .15s,background .15s}.qa-icon-btn:hover{color:var(--app-text);background:var(--app-surface)}.qa-context{background:var(--app-bg);border-bottom:1px solid var(--app-line-soft);padding:12px;font-size:12px}.qa-context-label{color:var(--app-text-muted);font-weight:500}.qa-context-ja{color:var(--app-text);margin-top:2px;font-weight:500}.qa-context-en{color:var(--app-en);font-family:var(--font-en);margin-top:2px}.qa-messages{flex-direction:column;flex:1;gap:12px;min-height:0;padding:16px;font-size:14px;display:flex;overflow-y:auto}.qa-intro{background:var(--app-surface);color:var(--app-text-muted);border:1px solid var(--app-line-soft);border-radius:14px;padding:12px;line-height:1.7}.qa-user-bubble{background:var(--app-action);color:var(--app-on-action);border-radius:14px;align-self:flex-end;margin-left:32px;padding:10px 14px;font-size:14px;line-height:1.6}.qa-ai-bubble{background:var(--app-bg);border:1px solid var(--app-line);color:var(--app-text);border-radius:14px;align-self:flex-start;margin-right:16px;padding:14px 16px}.qa-ai-bubble>span:only-child{color:var(--app-highlight)}.qa-presets{border-top:1px solid var(--app-line-soft);flex-wrap:wrap;gap:6px;padding:8px 12px;display:flex}.qa-preset{background:var(--app-surface);color:var(--app-text-muted);border:1px solid var(--app-line);cursor:pointer;border-radius:8px;padding:5px 10px;font-size:12px;transition:color .15s,border-color .15s}.qa-preset:hover{color:var(--app-text);border-color:var(--app-text-dim)}.qa-form{padding:12px;padding-bottom:max(12px, env(safe-area-inset-bottom));border-top:1px solid var(--app-line);background:var(--app-bg-elev);gap:8px;display:flex}.qa-input{background:var(--app-bg);border:1px solid var(--app-line);min-width:0;color:var(--app-text);border-radius:12px;flex:1;padding:10px 14px;font-size:16px}.qa-input::placeholder{color:var(--app-text-dim)}.qa-input:focus{box-shadow:0 0 0 2px var(--app-highlight);outline:none}.qa-submit{cursor:pointer;background:var(--app-action);color:var(--app-on-action);border:0;border-radius:12px;padding:10px 18px;font-size:14px;font-weight:600;transition:opacity .15s}.qa-submit:hover{opacity:.9}.qa-submit:disabled{opacity:.5}.markdown-body{--md-text:var(--app-text);--md-heading:var(--app-text);--md-answer:var(--app-en);--md-muted:var(--app-text-muted);--md-line:var(--app-line);--md-accent:var(--app-highlight)}.plan-card{border:1px solid var(--app-line);background:var(--app-surface);border-radius:14px;padding:14px 16px}.plan-head{justify-content:space-between;align-items:center;margin-bottom:6px;display:flex}.plan-label{color:var(--app-text-muted);font-size:12px}.plan-name{color:var(--app-highlight);background:var(--app-bg);border:1px solid var(--app-line);border-radius:9999px;padding:2px 10px;font-size:13px;font-weight:700}.plan-name.pro{color:var(--app-on-action);background:var(--app-action);border-color:var(--app-action)}.plan-desc{color:var(--app-text-muted);margin:0 0 10px;font-size:12px;line-height:1.6}.plan-upgrade-btn{background:var(--app-action);width:100%;color:var(--app-on-action);cursor:pointer;border:0;border-radius:10px;padding:10px 14px;font-size:14px;font-weight:700;transition:opacity .15s}.plan-upgrade-btn:hover{opacity:.9}.plan-upgrade-btn:disabled{opacity:.5;cursor:default}.plan-upgrade-btn.hidden{display:none}.plan-note{color:var(--app-text-dim);margin:8px 0 0;font-size:11px;line-height:1.5}.theme-picker-grid{grid-template-columns:repeat(3,1fr);gap:10px;margin-top:6px;display:grid}.theme-choice{border:2px solid var(--app-line);background:var(--app-surface);cursor:pointer;text-align:center;border-radius:12px;flex-direction:column;align-items:center;gap:6px;padding:10px 8px;transition:all .15s;display:flex}.theme-choice:hover{border-color:var(--app-text-dim);transform:translateY(-1px)}.theme-choice.active{border-color:var(--app-accent);background:var(--app-bg-elev);box-shadow:0 0 0 1px var(--app-accent)}.theme-swatch{border:1px solid #00000026;border-radius:6px;width:100%;height:28px;display:flex;overflow:hidden}.theme-swatch-half{flex:1;height:100%}.theme-choice-name{color:var(--app-text);font-size:12px;font-weight:700}.theme-choice-sub{color:var(--app-text-dim);font-size:10px}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@property --tw-scale-x{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-y{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-z{syntax:"*";inherits:false;initial-value:1}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-gradient-position{syntax:"*";inherits:false}@property --tw-gradient-from{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-via{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-to{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-stops{syntax:"*";inherits:false}@property --tw-gradient-via-stops{syntax:"*";inherits:false}@property --tw-gradient-from-position{syntax:"<length-percentage>";inherits:false;initial-value:0%}@property --tw-gradient-via-position{syntax:"<length-percentage>";inherits:false;initial-value:50%}@property --tw-gradient-to-position{syntax:"<length-percentage>";inherits:false;initial-value:100%}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}@keyframes spin{to{transform:rotate(360deg)}}