/*! tailwindcss v4.3.5 | MIT License | https://tailwindcss.com */
@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:block))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000}::backdrop{--tw-rotate-x:initial;--tw-rotate-y:initial;--tw-rotate-z:initial;--tw-skew-x:initial;--tw-skew-y:initial;--tw-shadow:0 0 #0000;--tw-shadow-color:initial;--tw-shadow-alpha:100%;--tw-inset-shadow:0 0 #0000;--tw-inset-shadow-color:initial;--tw-inset-shadow-alpha:100%;--tw-ring-color:initial;--tw-ring-shadow:0 0 #0000;--tw-inset-ring-color:initial;--tw-inset-ring-shadow:0 0 #0000;--tw-ring-inset:initial;--tw-ring-offset-width:0px;--tw-ring-offset-color:#fff;--tw-ring-offset-shadow:0 0 #0000}}}@layer theme{:root,:host{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before{box-sizing:border-box;border:0 solid;margin:0;padding:0}::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::-webkit-file-upload-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;-moz-tab-size:4;tab-size:4;line-height:1.5;font-family:var(--default-font-family,-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring:where(:not(iframe)){outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::-webkit-file-upload-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:-webkit-any([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:-webkit-any([multiple],[size])) optgroup option{padding-inline-start:20px}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::-webkit-file-upload-button{margin-inline-end:4px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab, red, red)){::placeholder{color:color-mix(in oklab, currentcolor 50%, transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-year-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-month-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-day-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-hour-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-minute-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-second-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-millisecond-field{padding-block-start:0;padding-block-end:0}::-webkit-datetime-edit-meridiem-field{padding-block-start:0;padding-block-end:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button{-webkit-appearance:button;appearance:button}input:where([type=button],[type=reset],[type=submit]){-webkit-appearance:button;appearance:button}::-webkit-file-upload-button{-webkit-appearance:button;appearance:button}::file-selector-button{-webkit-appearance:button;appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sr-only{clip-path:inset(50%);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.fixed{position:fixed}.sticky{position:sticky}.container{width:100%}@media (min-width:40rem){.container{max-width:40rem}}@media (min-width:48rem){.container{max-width:48rem}}@media (min-width:64rem){.container{max-width:64rem}}@media (min-width:80rem){.container{max-width:80rem}}@media (min-width:96rem){.container{max-width:96rem}}.block{display:block}.hidden{display:none}.table{display:table}.shrink{flex-shrink:1}.grow{flex-grow:1}.transform{transform:var(--tw-rotate-x, ) var(--tw-rotate-y, ) var(--tw-rotate-z, ) var(--tw-skew-x, ) var(--tw-skew-y, )}.resize{resize:both}.rounded{border-radius:.25rem}.ring{--tw-ring-shadow:var(--tw-ring-inset, ) 0 0 0 calc(1px + var(--tw-ring-offset-width)) var(--tw-ring-color,currentcolor);box-shadow:var(--tw-inset-shadow), var(--tw-inset-ring-shadow), var(--tw-ring-offset-shadow), var(--tw-ring-shadow), var(--tw-shadow)}}:root{font-family:var(--font-sans);color:#0f172a;-webkit-font-smoothing:antialiased;background:#f8fafc;font-size:18px}*{box-sizing:border-box}body{min-width:320px;margin:0}button,input,textarea,select{font:inherit}button,select{cursor:pointer}button:disabled{opacity:.45;cursor:default}button{border:0}button:focus-visible{outline-offset:3px;outline:3px solid #93c5fd}input:focus-visible{outline-offset:3px;outline:3px solid #93c5fd}textarea:focus-visible{outline-offset:3px;outline:3px solid #93c5fd}select:focus-visible{outline-offset:3px;outline:3px solid #93c5fd}svg{flex-shrink:0}.site-header{border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;max-width:1100px;margin:auto;padding:16px 24px;display:flex}.brand{color:#0f172a;white-space:nowrap;background:0 0;align-items:center;gap:9px;min-width:0;min-height:48px;padding:0;display:flex}.brand-icon{color:#fff;background:#2563eb;border-radius:9px;place-items:center;width:36px;height:36px;display:grid}.brand-cn{font-size:24px;font-weight:650}.brand-en{color:#64748b;font-size:16px}.help-button,.icon-button{color:#64748b;background:0 0;place-items:center;width:48px;height:48px;display:grid}.home-main{max-width:650px;margin:32px auto;padding:0 20px}.home-main h1{margin:24px 0;font-size:30px;font-weight:650}.practice-card,.writing-card{background:#fff;border:1px solid #e2e8f0;border-radius:12px;overflow:hidden}.home-poster{aspect-ratio:16/9;object-fit:cover;width:100%;display:block}.practice-body{padding:24px}.practice-body h2{margin:18px 0 24px;font-size:24px}.lesson-badge{color:#2563eb;background:#eff6ff;border-radius:5px;padding:6px 10px;font-size:14px;display:inline-block}.primary-button{color:#fff;background:#2563eb;border-radius:8px;justify-content:center;align-items:center;gap:10px;width:100%;min-height:52px;padding:10px 16px;font-size:18px;font-weight:600;display:flex}.primary-button:hover:not(:disabled){background:#1d4ed8}.secondary-button{color:#2563eb;background:#eff6ff;border:1px solid #bfdbfe;border-radius:8px;min-height:48px;padding:8px 16px}.listen-main{max-width:760px;margin:auto;padding:0 24px 24px}.lesson-topline{color:#64748b;justify-content:space-between;align-items:center;gap:10px;margin:8px 0;font-size:14px;display:flex}.back-button{color:#64748b;background:0 0;align-items:center;gap:6px;min-height:48px;padding:0;display:flex}.training-title{margin:8px 0 20px;font-size:26px;font-weight:650}.lesson-grid{grid-template-columns:minmax(0,1fr);align-items:start;gap:24px;display:grid}.player{min-width:0}.video-shell{background:#eff6ff;border-radius:10px;height:0;padding-top:56.25%;position:relative;overflow:hidden}.video-shell video{object-fit:contain;width:100%;height:100%;display:block;position:absolute;top:0;bottom:0;left:0;right:0}.video-play{color:#fff;background:#2563eb;border-radius:50%;place-items:center;width:56px;height:56px;margin:auto;padding-left:5px;display:grid;position:absolute;top:0;bottom:0;left:0;right:0}.player-panel{background:#fff;border:1px solid #e2e8f0;border-radius:10px;margin-top:8px;padding:12px}.timeline-labels{color:#64748b;justify-content:space-between;font-size:13px;display:flex}.timeline{accent-color:#2563eb;width:100%;height:32px;margin:0}.playback-controls{justify-content:space-between;align-items:center;gap:8px;display:flex}.control-chip{color:#64748b;background:0 0;border-radius:6px;align-items:center;gap:5px;min-height:48px;padding:0 8px;font-size:14px;display:flex}.control-chip.active{color:#2563eb;background:#eff6ff}.central-controls{align-items:center;gap:6px;display:flex}.main-play{color:#fff;background:#2563eb;border-radius:50%;place-items:center;width:48px;height:48px;display:grid}.rate-control{width:62px}.rate-control select{color:#2563eb;text-align:center;background:#eff6ff;border:0;border-radius:6px;width:100%;min-height:48px;font-size:15px}.sentence-navigation{gap:8px;margin-top:8px;display:flex}.sentence-navigation button{color:#64748b;background:#f8fafc;border-radius:6px;flex:1;min-height:48px;font-size:14px}.sentence-navigation button.current{color:#2563eb;background:#eff6ff}.sentence-time{margin-left:8px;font-size:12px}.writing-card{min-width:0;padding:20px;overflow:visible}.writing-card label{font-size:18px;font-weight:600}.writing-card textarea{resize:vertical;color:#0f172a;background:#fff;border:1px solid #cbd5e1;border-radius:8px;width:100%;min-height:180px;margin-top:12px;padding:12px;font-size:18px;line-height:1.65}.writing-status{color:#64748b;justify-content:space-between;margin:6px 0 12px;font-size:13px;display:flex}.submit-bar{padding:10px 0 max(4px,env(safe-area-inset-bottom));z-index:5;background:#fff;position:sticky;bottom:0}.empty-hint{color:#64748b;text-align:center;margin:6px 0 0;font-size:13px}.first-score{color:#334155;background:#eff6ff;border-radius:8px;margin-bottom:16px;padding:12px;font-size:16px}.first-score strong{color:#2563eb;margin-left:6px}.first-score details{margin-top:8px;font-size:13px}.first-score details p{overflow-wrap:anywhere}.corrections h2,.completion h2{margin:0 0 16px;font-size:22px}.correction-sentence{border-bottom:1px solid #e2e8f0;padding:12px 0}.token-row{flex-wrap:wrap;align-items:flex-start;gap:9px;display:flex}.token-unit{align-items:flex-start;gap:8px;min-width:0;display:flex}.correct-word{color:#16a34a;background:#f0fdf4;border-radius:4px;padding:6px 4px;font-size:18px;display:inline-block}.blank-unit{flex-direction:column;align-items:flex-start;gap:4px;display:flex}.blank-unit input{background:#fff;border:1px solid #dc2626;border-bottom-width:2px;border-radius:4px;width:100px;max-width:100%;height:48px;padding:4px 6px;font-size:18px}.blank-unit small{color:#dc2626;font-size:12px}.answer-hint{color:#dc2626;font-size:14px}.translation-hint{color:#475569;margin:12px 0 0;font-size:18px}.extra-word{overflow-wrap:anywhere;color:#dc2626;background:#fef2f2;border:1px solid #fecaca;border-radius:5px;max-width:100%;min-height:48px;padding:6px;font-size:16px}.completion h2{color:#16a34a}.full-transcript{margin:16px 0}.full-transcript p{margin:6px 0;font-size:18px;line-height:1.6}.full-transcript p+p{color:#64748b}.encouragement{color:#2563eb;font-size:18px;line-height:1.6}.storage-error,.media-error{color:#dc2626;background:#fef2f2;border-radius:6px;padding:12px;font-size:16px;line-height:1.5}.media-error button{color:#2563eb;background:#fff;min-height:44px;padding:6px}.modal-backdrop{z-index:20;background:#0f172a66;place-items:center;padding:20px;display:grid;position:fixed;top:0;bottom:0;left:0;right:0}.info-modal{background:#fff;border-radius:12px;max-width:440px;padding:28px;position:relative}.info-modal h2{margin:12px 0;font-size:24px}.info-modal p{color:#64748b;font-size:18px;line-height:1.6}.modal-close{position:absolute;top:6px;right:6px}.completed-actions{position:static!important}.sync-caption{color:#475569;text-align:center;background:#eff6ff;padding:6px 16px;font-size:13px}.header-actions{display:flex}.account-panel{max-height:90dvh;overflow-y:auto}.account-panel input{background:#fff;border:1px solid #bfdbfe;border-radius:7px;width:100%;margin:8px 0 16px;padding:10px;font-size:18px}.account-panel .secondary-button{margin:10px 8px 0 0}.account-panel label{font-size:18px;display:block}.account-panel p{overflow-wrap:anywhere}.submit-bar{position:static}.daily-choice{grid-template-columns:1fr 1fr;gap:8px;margin:0 0 18px;display:grid}.daily-choice .secondary-button{min-height:48px;font-size:18px}.brand-en{color:#2563eb}.home-progress{background:#fff;border-radius:12px;margin:0 0 18px;padding:18px}.home-progress p{color:#334155;margin:8px 0}.stage-track{gap:8px;margin:12px 0;display:flex}.stage-track span{text-align:center;color:#64748b;background:#eff6ff;border-radius:6px;flex:1;padding:7px;font-size:16px}.stage-track .active{color:#2563eb;background:#dbeafe;font-weight:600}.empty-material{color:#475569;padding:16px 0;font-size:16px}.route-guard{max-width:650px;margin:24px auto;padding:20px}.completion h2{animation:.24s ease-out both completion-appear}@keyframes completion-appear{0%{opacity:.6;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.completion h2{animation:none}}:root{color:#0f172a;background:#eff6ff}.app{background:#eff6ff;min-height:100dvh}.site-header{border-color:#dbeafe}.training-title,.home-main h1{color:#1e3a5f}.writing-card textarea{border-color:#bfdbfe}.source-punctuation{color:#0f172a;padding-top:6px;font-size:18px}.token-unit{gap:0}.level-status{color:#1e40af;font-size:18px}.level-note{color:#475569;font-size:14px}.practice-card,.writing-card,.player-panel{border-color:#0000}.secondary-button{background:#dbeafe}@media (max-width:640px){.site-header{padding:6px 16px}.brand-cn{font-size:21px}.brand-en{font-size:14px}.listen-main{padding:0 16px 20px}.lesson-topline{margin:0;font-size:13px}.training-title{margin:2px 0 10px;font-size:22px}.lesson-grid{grid-template-columns:minmax(0,1fr);gap:12px}.video-shell{height:140px;padding-top:0}.player-panel{padding:8px 10px}.timeline{height:24px}.sentence-navigation{margin-top:4px}.sentence-navigation button{min-height:48px;font-size:14px}.writing-card{padding:14px}.writing-card textarea{min-height:90px;margin-top:8px}.writing-status{margin:2px 0;font-size:12px}.writing-card .submit-bar{padding-top:8px}.keyboard-open .video-shell{height:80px}.keyboard-open .timeline-labels,.keyboard-open .timeline,.keyboard-open .training-title,.keyboard-open .lesson-topline,.keyboard-open .sentence-navigation{display:none}.keyboard-open .player-panel{padding:4px 8px}.keyboard-open .writing-card{padding-bottom:78px}.keyboard-open .submit-bar{left:16px;right:16px;bottom:var(--keyboard-offset,0px);padding:8px 12px max(8px,env(safe-area-inset-bottom));border:1px solid #e2e8f0;border-radius:8px;position:fixed}.keyboard-open .empty-hint{display:none}.home-main{margin-top:24px}.home-main h1{font-size:28px}.practice-body{padding:20px}}.material-credit{color:#64748b;margin:0 0 8px;font-size:14px}.material-credit summary{cursor:pointer}.material-credit p{margin:6px 0}.material-credit a{color:#2563eb}.sentence-navigation{flex-wrap:wrap}.sentence-navigation button{flex:28%;min-width:80px}.keyboard-open .material-credit{display:none}.video-play{border-radius:8px;justify-content:center;gap:8px;width:144px;height:48px;padding:0;font-size:18px;display:flex}.media-loading{color:#64748b;margin:6px 0;font-size:16px}.media-error p{margin:0 0 8px}.media-error button{border-radius:6px;min-height:48px;margin-right:8px}.video-shell video::cue{color:#0000;text-shadow:none;visibility:hidden;background:0 0}html{-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-bottom:112px}body{overflow-wrap:break-word}button,input,textarea,select{-webkit-tap-highlight-color:transparent}button{touch-action:manipulation}button:enabled,summary{scroll-margin-block:12px}.site-header{padding-top:max(12px,env(safe-area-inset-top));padding-left:max(24px,env(safe-area-inset-left));padding-right:max(24px,env(safe-area-inset-right));gap:8px}.header-actions{flex:none;gap:0}.help-button,.icon-button{flex:0 0 48px;min-width:48px;min-height:48px}.listen-main,.home-main,.route-guard{padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right));padding-bottom:max(24px,env(safe-area-inset-bottom))}.lesson-grid>*{min-width:0}.lesson-topline{flex-wrap:wrap;gap:0 12px}.lesson-topline>span,.training-title,.practice-body h2,.full-transcript p,.translation-hint,.storage-error,.media-error,.level-status,.empty-material,.home-progress p,.material-credit p,.material-credit a,.info-modal p,.sync-caption{overflow-wrap:anywhere}.primary-button,.secondary-button{white-space:normal;overflow-wrap:anywhere;max-width:100%}.timeline{height:48px;min-height:48px}.rate-control{flex:0 0 76px;width:76px}.rate-control select{font-size:16px}.token-unit,.blank-unit{min-width:0;max-width:100%}.correct-word,.answer-hint{overflow-wrap:anywhere;min-width:0;max-width:100%}.blank-unit input{min-height:48px;scroll-margin-top:170px;scroll-margin-bottom:120px;font-size:18px}.writing-card textarea{scroll-margin-top:170px;scroll-margin-bottom:120px;font-size:18px}.material-credit summary{cursor:pointer;align-items:center;gap:6px;min-height:48px;display:flex}.material-credit summary:before{content:"▸";font-size:16px}.material-credit[open] summary:before{content:"▾"}.modal-backdrop{padding-top:max(12px,env(safe-area-inset-top));padding-bottom:max(12px,env(safe-area-inset-bottom));padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right));overscroll-behavior:contain;overflow-y:auto}.info-modal{width:min(100%,440px);min-width:0;max-height:calc(100vh - 24px);max-height:calc(var(--visible-viewport-height,100dvh) - max(12px,env(safe-area-inset-top)) - max(12px,env(safe-area-inset-bottom)));overscroll-behavior:contain;overflow-y:auto}.info-modal h2{padding-right:28px}.account-panel input{min-height:48px;font-size:18px}.account-panel form{min-width:0}@media (max-width:640px){.site-header{padding-top:max(6px,env(safe-area-inset-top));padding-bottom:6px;padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right));gap:6px}.brand{gap:6px}.brand-icon{flex:0 0 32px;width:32px;height:32px}.brand-cn{font-size:21px}.brand-en{font-size:14px}.listen-main,.home-main,.route-guard{padding-left:max(12px,env(safe-area-inset-left));padding-right:max(12px,env(safe-area-inset-right))}.home-main{margin-top:16px}.home-main h1{font-size:28px}.daily-choice{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.daily-choice button{padding-inline-start:8px;padding-inline-end:8px}.practice-body{padding:18px}.player-panel{padding:6px 8px}.sentence-navigation{gap:6px}.sentence-navigation button{flex:28%;min-width:0;min-height:48px;padding:4px;font-size:14px;line-height:1.4}.sentence-time{margin-left:0;font-size:12px;display:block}.writing-card{padding:12px}.writing-status{flex-wrap:wrap;gap:8px}.info-modal{padding:24px 18px}.keyboard-open .player{top:max(env(safe-area-inset-top),var(--visible-viewport-top,0px));z-index:6;background:#eff6ff;border-radius:10px;padding-top:4px;position:sticky}.keyboard-open .video-shell{height:clamp(48px,calc(var(--visible-viewport-height,100vh) * .14),80px)}.keyboard-open .video-play{width:128px;height:48px}.keyboard-open .player-panel{margin-top:4px;padding:4px 8px}.keyboard-open .writing-card{padding-bottom:calc(112px + var(--keyboard-offset,0px) + env(safe-area-inset-bottom))}.keyboard-open .submit-bar{left:max(12px,env(safe-area-inset-left));right:max(12px,env(safe-area-inset-right));bottom:var(--keyboard-offset,0px);padding:8px 10px max(8px,env(safe-area-inset-bottom));box-shadow:0 -2px 8px #0f172a08}.keyboard-open .lesson-grid{display:block}.keyboard-open .writing-card{margin-top:12px}.keyboard-open .lesson-topline{display:flex}.keyboard-open .lesson-topline>span{display:none}}.data-tools{border-top:1px solid #bfdbfe;margin-top:20px;padding-top:12px}.data-tools summary{cursor:pointer;min-height:48px}.data-tools textarea{overflow-wrap:anywhere;background:#fff;border:1px solid #bfdbfe;width:100%;min-height:100px;max-height:220px;font-size:18px}.data-tools .delete-confirm{align-items:center;gap:8px;min-height:48px;display:flex}.account-panel .delete-confirm input{flex:0 0 24px;width:24px;min-height:24px;margin:0}.danger-button{color:#dc2626}@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-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}
