@layer theme{:root,:host{--font-sans:-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-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,::backdrop{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%;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}::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:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::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:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-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}.fixed{position:fixed}.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}.flex{display:flex}.grid{display:grid}.hidden{display:none}.lowercase{text-transform:lowercase}}:root{--ink:#141722;--muted:#646b7a;--paper:#f4f6fb;--line:#e5e7f1;--primary:#151e68;--primary-hover:#22328a;--focus:#151e68;--accent:#eaf0ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:15px;line-height:1.6}h1,h2,h3,h4,p{margin:0}h1{letter-spacing:-1.4px;font-size:clamp(29px,3.4vw,39px);font-weight:730;line-height:1.22}h2{letter-spacing:-.45px;font-size:21px;font-weight:700;line-height:1.4}h3{font-size:17px;font-weight:680}h4{font-size:15px;font-weight:650}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.5}input,textarea,select{width:100%;color:var(--ink);background:#fff;border:1px solid #d8dae7;border-radius:11px;min-height:43px;padding:10px 12px;font-size:14px;transition:border-color .15s,box-shadow .15s;display:block}input::placeholder,textarea::placeholder{color:#686571}textarea{resize:vertical}input:focus,textarea:focus,select:focus{border-color:var(--primary);outline:0;box-shadow:0 0 0 3px #e3e7fc}input[type=checkbox],input[type=radio]{width:17px;height:17px;min-height:0;accent-color:var(--primary);flex-shrink:0}small{font-size:12px}fieldset{min-width:0}::selection{background:#eaf0ff}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}.spin{animation:1s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.muted{color:var(--muted)}.text-small{font-size:12px}.full{width:100%}.row,.actions{flex-wrap:wrap;align-items:center;gap:9px;display:flex}.row{justify-content:space-between}.actions{margin-top:16px}.button{border:1px solid #0000;border-radius:11px;justify-content:center;align-items:center;gap:8px;min-height:41px;padding:9px 16px;font-size:13px;font-weight:650;line-height:1.5;transition:background .15s,transform .15s;display:inline-flex}.button-primary{background:var(--primary);color:#fff}.button-primary:hover:not(:disabled){background:var(--primary-hover)}.button-accent{color:#313f84;background:#dae0fb;border-color:#c9d0f6}.button-accent:hover:not(:disabled){background:#c8d0f6}.button-secondary{color:#494f6d;background:#fff;border-color:#d8dbe8}.button-secondary:hover:not(:disabled){background:#f3f4fc}.button-ghost{color:#63677d;background:0 0}.button-ghost:hover:not(:disabled){background:#edeff7}.button-danger{color:#fff;background:#aa3d51}.panel{border:1px solid var(--line);background:#fff;border-radius:19px;min-width:0;padding:24px;box-shadow:0 3px 13px #32284c03}.panel>h2+p{margin-top:9px}.badge{color:#63677b;white-space:nowrap;background:#edeef5;border-radius:100px;align-items:center;gap:5px;padding:4px 10px;font-size:11px;font-weight:650;line-height:1.5;display:inline-flex}.badge.success{color:#3b7154;background:#e8f4ed}.badge.warning{color:#7c6123;background:#fcf0d9}.badge.info{color:#5a66a4;background:#eaedfa}.notice{border:1px solid;border-radius:12px;align-items:flex-start;gap:10px;margin:14px 0;padding:13px 16px;font-size:13px;display:flex}.notice>svg{flex-shrink:0;margin-top:2px}.notice.error{color:#91394e;background:#fff0f2;border-color:#f3d5dc}.notice.success{color:#38664c;background:#edf7f1;border-color:#d4eadd}.notice.info{color:#5a6496;background:#eff1fc;border-color:#dbdff4}.notice .button{margin:10px 0 0}.loading{min-height:240px;color:var(--muted);justify-content:center;align-items:center;gap:12px;display:flex}.empty{text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:12px;min-height:260px;padding:40px;display:flex}.empty p{color:var(--muted);max-width:420px;font-size:14px}.empty-mark{color:#5c6699;background:#e3e7fb;border-radius:50%;place-items:center;width:56px;height:56px;font-size:27px;display:grid}.field{flex-direction:column;gap:7px;min-width:0;font-size:13px;font-weight:620;display:flex}.field small{color:var(--muted);font-weight:400}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin:22px 0;display:grid}.form-stack{flex-direction:column;gap:20px;margin-top:22px;display:flex}.form-stack .form-grid{margin:0}.check{align-items:flex-start;gap:9px;font-size:13px;font-weight:500;line-height:1.6;display:flex}.check input{margin-top:3px}.boot{max-width:760px;margin:15vh auto;padding:24px}.skip{z-index:100;color:var(--ink);background:#dce1fb;border-radius:10px;padding:10px 16px;position:fixed;top:10px;left:10px;transform:translateY(-100px)}.skip:focus{transform:none}.app-header{border-bottom:1px solid var(--line);z-index:30;background:#fff;align-items:center;gap:20px;min-height:82px;padding:12px max(24px,50vw - 640px);display:flex;position:sticky;top:0}.brand{letter-spacing:-.9px;white-space:nowrap;align-items:center;gap:10px;font-size:22px;font-weight:800;line-height:1.2;display:flex}.brand small{letter-spacing:.5px;color:var(--muted);margin-top:5px;font-size:10px;font-weight:500;display:block}.brand-icon{color:#151e68;background:#eaf0ff;border-radius:12px;place-items:center;width:40px;height:40px;display:grid}.app-header nav{align-items:center;gap:5px;margin:auto;display:flex}.app-header nav a{color:#626677;border-radius:11px;align-items:center;gap:8px;padding:10px 16px;font-size:13px;font-weight:560;display:flex}.app-header nav a.active{color:#151e68;background:#eaf0ff}.account{white-space:nowrap;align-items:center;gap:8px;font-size:12px;font-weight:650;display:flex}.account small{color:var(--muted);font-size:10px;font-weight:400;display:block}.account .button{padding:10px}.main-content{max-width:1230px;min-height:calc(100vh - 144px);margin:auto;padding:38px 28px 65px}.page-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:29px;display:flex}.page-heading p:not(.eyebrow){color:var(--muted);margin-top:10px;font-size:14px}.eyebrow{color:#606682;letter-spacing:1.45px;text-transform:uppercase;margin-bottom:10px;font-size:11px;font-weight:700}.audio-progress-panel{margin-bottom:24px}.audio-progress-heading,.audio-progress-stats,.audio-progress-footer{justify-content:space-between;align-items:center;gap:16px;display:flex}.audio-progress-heading{margin-bottom:14px}.audio-progress-heading h2{align-items:center;gap:9px;font-size:18px;display:flex}.audio-progress-heading h2 svg{color:var(--primary)}.audio-progress-heading .button{min-height:36px;font-size:12px}.audio-progress-count{color:var(--muted);font-size:14px}.audio-progress-count strong{color:var(--ink);font-size:25px}.audio-progress-stats>span{color:var(--primary);white-space:nowrap;font-size:12px}.audio-progress-panel progress{appearance:none;background:var(--accent);width:100%;height:10px;accent-color:var(--primary);border:none;border-radius:6px;margin:12px 0 17px;display:block;overflow:hidden}.audio-progress-panel progress::-webkit-progress-bar{background:var(--accent);border-radius:6px}.audio-progress-panel progress::-webkit-progress-value{background:var(--primary);border-radius:6px}.audio-progress-panel progress::-moz-progress-bar{background:var(--primary);border-radius:6px}.audio-progress-footer>div{min-width:0}.audio-progress-footer p{font-size:12px}.audio-progress-next{overflow-wrap:anywhere;margin-top:5px}.audio-progress-footer .button{flex-shrink:0}@media (max-width:680px){.audio-progress-panel{padding:18px}.audio-progress-heading h2{font-size:16px}.audio-progress-heading .button{padding:6px;font-size:11px}.audio-progress-stats{flex-wrap:wrap;gap:4px}.audio-progress-count strong{font-size:23px}.audio-progress-footer{flex-direction:column;align-items:stretch}.audio-progress-footer .button{width:100%}}.quick-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;display:grid}.quick-card{border:1px solid var(--line);background:#fff;border-radius:18px;padding:23px 24px 27px;transition:transform .2s,box-shadow .2s;position:relative}.quick-card:hover,.pack-tile:hover,.challenge-tile:hover{transform:translateY(-3px);box-shadow:0 8px 25px #4a3b6810}.quick-icon{color:#151e68;background:#eaf0ff;border-radius:15px;justify-content:center;align-items:center;width:49px;height:49px;display:inline-flex}.quick-icon.blue{color:#076c87;background:#e7f7fb}.quick-icon.peach{color:#151e68;background:#eaf0ff}.quick-icon.green{color:#c62839;background:#fff0f2}.quick-icon.yellow{color:#151e68;background:#eaf0ff}.quick-icon.pink{color:#076c87;background:#e7f7fb}.quick-card h2{margin:15px 0 5px;font-size:17px}.quick-card p{color:var(--muted);max-width:250px;font-size:12px}.quick-arrow{color:#626471;position:absolute;top:29px;right:23px}.section-heading{justify-content:space-between;align-items:center;gap:20px;margin:32px 0 15px;display:flex}.section-heading a{color:#5f6894;align-items:center;gap:7px;font-size:12px;font-weight:600;display:flex}.section-heading p{margin-top:5px;font-size:13px}.panel .section-heading{margin:0 0 15px}.pending-line{color:#61667d;background:#f2f4fc;border:1px solid #dfe2ef;border-radius:12px;align-items:center;gap:10px;margin-bottom:20px;padding:12px 16px;font-size:12px;display:flex}.pending-line .badge{margin-left:auto}.pack-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.pack-tile{border:1px solid var(--line);background:#fff;border-radius:17px;transition:transform .2s,box-shadow .2s;overflow:hidden}.pack-cover{color:#626885;background:linear-gradient(130deg,#e6eafb,#dbdff4);justify-content:center;align-items:center;height:140px;display:flex;position:relative}.pack-cover.intermediate{color:#6e6554;background:linear-gradient(130deg,#f2e9df,#f5e8ce)}.pack-cover.advanced{color:#596b64;background:linear-gradient(130deg,#e0ede8,#d4e7e1)}.pack-cover span{color:#606686;background:#ffffff75;border-radius:20px;padding:3px 9px;font-size:10px;font-weight:600;position:absolute;bottom:11px;left:17px}.pack-info{padding:18px 20px}.pack-info h2{margin:12px 0 7px;font-size:17px}.pack-info p{color:var(--muted);-webkit-line-clamp:2;-webkit-box-orient:vertical;min-height:41px;font-size:12px;line-height:1.7;display:-webkit-box;overflow:hidden}.pack-meta{color:#616476;border-top:1px solid #ecedf5;justify-content:space-between;align-items:center;margin-top:16px;padding-top:13px;font-size:11px;display:flex}.app-footer{border-top:1px solid var(--line);color:#646778;background:#fff;justify-content:center;align-items:center;gap:8px;padding:17px;font-size:11px;display:flex}.filters{align-items:flex-end;gap:20px;margin-bottom:24px;padding:19px 22px;display:flex}.filters .field:first-child{flex:1}.filters .field{min-width:165px}.filters .check{white-space:nowrap;align-self:center}.search-input{position:relative}.search-input input{padding-left:39px}.search-input svg{color:#6a6572;position:absolute;top:13px;left:12px}.back-link{color:#60657e;align-items:center;gap:7px;margin-bottom:20px;font-size:12px;display:inline-flex}.editor-tabs{background:#eef0f8;border:1px solid #e1e3f0;border-radius:14px;gap:6px;margin:27px 0 25px;padding:6px;display:flex;overflow-x:auto}.editor-tabs button{color:#62667d;white-space:nowrap;background:0 0;border:0;border-radius:9px;flex:1;min-width:105px;padding:10px 12px;font-size:12px;font-weight:620}.editor-tabs button[aria-selected=true]{color:#5462aa;background:#fff;box-shadow:0 2px 8px #62478009}.editor-fieldset{border:0;min-width:0;margin:0;padding:0}.editor-layout{grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:22px;margin:24px 0;display:grid}.tip-panel{background:#f2f4fc;border-color:#dce0f2}.tip-panel h2{margin-top:19px}.tip-panel p{color:#61657a;margin:15px 0;font-size:13px}.tip-panel .field{margin-top:14px}.editor-footer{border-top:1px solid var(--line);color:var(--muted);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-top:35px;padding-top:20px;font-size:12px;display:flex}.editor-footer .actions{margin:0}.level-tabs{gap:9px;margin:18px 0;display:flex;overflow-x:auto}.level-tabs .button{white-space:nowrap}.card-editor-list{flex-direction:column;gap:18px;display:flex}.card-toolbar{border-top:1px solid var(--line);justify-content:space-between;align-items:center;margin-top:22px;padding-top:6px;display:flex}.card-toolbar>.button{margin-top:16px}.archived-card{background:#f5f6fa}.questions-layout{grid-template-columns:285px minmax(0,1fr);gap:21px;display:grid}.question-list{align-self:start;padding:16px}.question-list h3{margin-bottom:8px;padding:8px 10px}.question-list button{text-align:left;color:#636779;background:0 0;border:1px solid #0000;border-radius:12px;width:100%;margin-bottom:7px;padding:12px 11px;font-size:13px;line-height:1.6}.question-list button span{text-overflow:ellipsis;white-space:nowrap;font-weight:600;display:block;overflow:hidden}.question-list button small{color:#63677c;font-size:10px;display:block}.question-list button.selected{color:#5360a1;background:#eceefb;border-color:#dce0f4}.options-fieldset,.related-cards,.participant-picker{border:1px solid #dee1ee;border-radius:14px;padding:16px}.options-fieldset legend,.related-cards legend,.participant-picker legend{color:#5f647f;padding:0 7px;font-size:12px;font-weight:600}.option-row{align-items:center;gap:11px;margin:9px 0;display:flex}.option-radio{color:var(--muted);align-items:center;gap:9px;font-size:12px;display:flex}.option-radio input{margin:0}.related-cards{flex-wrap:wrap;gap:12px 20px;max-height:240px;display:flex;overflow:auto}.review-check{color:#516b59;background:#f0f6f1;border-radius:12px;padding:15px}.review-stats{border-top:1px solid #e8eaf5;border-bottom:1px solid #e8eaf5;grid-template-columns:repeat(4,1fr);gap:12px;margin:25px 0;padding:18px 0;display:grid}.review-stats div{text-align:center;color:#616476;flex-direction:column;font-size:11px;display:flex}.review-stats strong{color:#5b669b;font-size:27px;font-weight:650}.validation{color:#7e604f;font-size:13px}.validation h3{font-size:14px}.validation ul{margin:15px 0;padding-left:20px;line-height:1.9}.validation.panel{background:#fff9ee;border-color:#f2e4c9;margin:18px 0}.conflict{background:#fff7ed;margin:20px 0}.conflict p{color:#7b6249;margin-top:10px;font-size:13px}.publish-panel{background:#f1f3fb;align-self:start}.publish-panel p{color:#616783;margin:15px 0;font-size:13px;line-height:1.9}.publish-panel small{text-align:center;color:#636778;margin-top:13px;display:block}.preview-header{background:#eff1fb}.preview-header h2{margin:14px 0;font-size:25px}.preview-header p{font-size:14px}.flashcard-preview{text-align:center;padding:35px 28px}.flashcard-preview h2{margin:30px 0 8px;font-size:31px}.flashcard-preview .meaning{border-top:1px solid #dee1ef;margin-top:26px;padding-top:26px}.flashcard-preview .meaning p{color:#63677c;margin:12px 0;font-size:14px}.flashcard-preview .actions{justify-content:center;margin-top:26px}audio{width:100%;max-width:100%;height:42px;margin:12px 0}.question-preview{border-bottom:1px solid #e2e5f2;padding:20px 0}.question-preview:last-child{border:0}.question-preview p{color:#626678;margin-top:10px;font-size:13px}.question-preview ol{color:#5f647f;margin:12px 0;padding-left:25px;font-size:13px;line-height:2}.question-preview .correct{color:#4b6e57;font-weight:650}.audio-layout{grid-template-columns:320px minmax(0,1fr);gap:22px;display:grid}.audio-targets{align-self:start;padding:19px}.audio-targets>.check{margin:18px 0}.audio-playlist{max-height:580px;overflow:auto}.audio-playlist button{text-align:left;color:#62677e;background:0 0;border:1px solid #0000;border-radius:12px;align-items:flex-start;gap:10px;width:100%;padding:12px;font-size:12px;line-height:1.65;display:flex}.audio-playlist button svg{flex-shrink:0;margin-top:3px}.audio-playlist button.selected{color:#5a659a;background:#edeffb;border-color:#dee1f0}.audio-playlist button small{color:#636675;font-size:10px;display:block}.recording-panel>h3{color:#62667a;margin-top:18px}.recording-panel blockquote{color:#5b638b;background:#f9fafe;border:1px dashed #cbd0e9;border-radius:15px;margin:22px 0;padding:27px;font-size:23px;line-height:1.6}.recording-panel>.muted{font-size:11px}.recording-clock{text-align:center;font-variant-numeric:tabular-nums;color:#626781;margin:25px 0;font-size:20px;font-weight:500}.recording-clock.recording{color:#9f4a60}.recording-clock span{background:#d5607c;border-radius:50%;width:8px;height:8px;margin:0 10px 3px;display:inline-block}.recording-actions{justify-content:center}.audio-workflow{color:var(--primary);background:#f0f3ff;border:1px solid #dce2fa;border-radius:14px;align-items:flex-start;gap:12px;margin:18px 0;padding:16px;display:flex}.audio-workflow>svg{flex-shrink:0;margin-top:3px}.audio-workflow p{margin-top:4px;font-size:13px;line-height:1.6}.audio-workflow.saved{color:#256345;background:#edf8f1;border-color:#cfe8d9}.audio-workflow.failed{color:#875126;background:#fff5ec;border-color:#f0dcc8}.upload-label{cursor:pointer;position:relative}.upload-label input{opacity:0;cursor:pointer;width:100%;height:100%;position:absolute;inset:0}.upload-label.disabled{opacity:.5;cursor:not-allowed}.upload-label:focus-within{outline:3px solid var(--focus);outline-offset:3px}.audio-player,.audio-result{color:#60647a;border-top:1px solid #e5e8f5;margin:25px 0 0;padding-top:21px;font-size:12px}.audio-result p{margin-top:12px}.challenge-tools{justify-content:space-between;align-items:flex-end;gap:24px;margin:24px 0;display:flex}.challenge-tools>.field{flex:1;max-width:500px}.join-form{align-items:flex-end;gap:10px;display:flex}.challenge-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;display:grid}.challenge-tile{border:1px solid var(--line);background:#fff;border-radius:18px;padding:25px;transition:transform .2s,box-shadow .2s;position:relative}.challenge-tile>.badge{position:absolute;top:27px;right:18px}.challenge-tile h2{margin:18px 0 9px;font-size:18px}.challenge-tile p{color:#606476;font-size:12px}.tile-link{color:#5f6580;border-top:1px solid #e7e9f5;justify-content:space-between;align-items:center;gap:10px;margin-top:20px;padding-top:17px;font-size:12px;display:flex}.participant-picker{flex-wrap:wrap;gap:13px 24px;margin:20px 0;display:flex}.participants{margin:19px 0}.participants>div{color:#5f647a;border-bottom:1px solid #e7e9f5;align-items:center;gap:10px;padding:11px 0;font-size:13px;display:flex}.participants .badge{margin-left:auto}.avatar{color:#5d6486;background:#e8ebfb;border-radius:11px;place-items:center;width:33px;height:33px;font-weight:650;display:grid}.panel h2>svg{vertical-align:middle;color:#606682;margin-right:5px;display:inline-block}.invite-code{text-align:center;letter-spacing:3px;color:#5c6591;background:#f6f8ff;margin:18px 0;padding:15px;font-size:25px;font-weight:700}.table-scroll{overflow:auto}table{border-collapse:collapse;white-space:nowrap;width:100%;font-size:13px}th,td{text-align:left;border-bottom:1px solid #e5e8f4;padding:15px 13px}th{color:#60657c;background:#f8f9fe;font-size:11px;font-weight:650}td{color:#5e6481}td strong{font-weight:600}.ranking{margin-top:24px}.ranking h2{margin-bottom:17px}.login{grid-template-columns:1fr 1fr;min-height:100vh;display:grid}.login-story{background:#e4e7f7;flex-direction:column;justify-content:space-between;min-height:100vh;padding:55px 70px;display:flex;overflow:hidden}.login-story>.brand{align-self:flex-start}.login-story .brand-icon{background:#fff6}.login-story h1{letter-spacing:-2px;color:#444e83;margin:20px 0;font-size:clamp(35px,4.2vw,57px);line-height:1.25}.login-story p{color:#5f647e;max-width:370px;font-size:15px;line-height:1.8}.login-story>small{color:#5f647d}.story-cards{height:170px;margin:32px 0 18px;position:relative}.story-cards>div{color:#5d658e;letter-spacing:-1px;background:#ffffffcf;border-radius:18px;width:240px;height:135px;padding:22px;font-size:29px;position:absolute;top:0;left:0;transform:rotate(-7deg);box-shadow:0 15px 40px #8269a011}.story-cards>div:last-child{color:#5f647e;background:#fff;top:40px;left:90px;transform:rotate(7deg)}.story-cards small{letter-spacing:0;color:#626677;margin-top:14px;font-size:11px;display:block}.login-form{justify-content:center;align-items:center;padding:45px;display:flex}.login-form>div{width:100%;max-width:360px}.login-form h2{letter-spacing:-.8px;font-size:28px}.login-form p:not(.eyebrow){color:#60657c;margin-top:9px;font-size:13px}.login-form form{flex-direction:column;gap:20px;margin:30px 0 23px;display:flex}.login-form .button{margin-top:3px}.login-form>.muted{font-size:11px}@media (min-width:1600px){.main-content{padding-top:48px}.quick-card{padding:28px}.pack-cover{height:150px}}@media (max-width:1000px){.app-header{gap:12px;padding:13px 22px}.brand{font-size:20px}.app-header nav a{padding:10px;font-size:12px}.account span{display:none}.pack-grid,.challenge-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.quick-card{padding:20px}.quick-card p{max-width:190px}.questions-layout{grid-template-columns:230px minmax(0,1fr)}.audio-layout{grid-template-columns:270px minmax(0,1fr)}.login-story{padding:40px}.login-story h1{font-size:43px}.editor-layout{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr)}}@media (max-width:760px){.app-header{flex-wrap:wrap;gap:10px;padding:12px 18px;position:relative}.brand small{display:none}.brand-icon{border-radius:10px;width:33px;height:33px}.account{margin-left:auto}.app-header nav{border-top:1px solid #edeff7;order:3;justify-content:space-between;gap:3px;width:100%;padding-top:8px}.app-header nav a{flex:1;justify-content:center;gap:5px;padding:8px 7px;font-size:11px}.app-header nav a svg{width:16px}.main-content{padding:26px 18px 40px}.page-heading{flex-wrap:wrap;align-items:flex-start;gap:16px;margin-bottom:25px}.page-heading h1{letter-spacing:-1px;font-size:30px}.page-heading p:not(.eyebrow){font-size:12px}.page-heading>.button{min-height:37px;font-size:12px}.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.quick-card{padding:17px 15px 20px}.quick-icon{border-radius:12px;width:39px;height:39px}.quick-icon svg{width:21px}.quick-card h2{margin-top:12px;font-size:14px;line-height:1.45}.quick-card p{font-size:10px}.quick-arrow{width:14px;top:23px;right:14px}.section-heading{align-items:flex-start;gap:12px}.section-heading h2{font-size:18px}.section-heading .button{min-height:35px;padding:8px 11px;font-size:11px}.section-heading a{white-space:nowrap;margin-top:4px;font-size:10px}.pending-line{flex-wrap:wrap;padding:12px;font-size:10px}.pending-line .badge{margin-left:0}.pack-grid,.challenge-grid{gap:14px}.pack-cover{height:100px}.pack-cover svg{width:32px}.pack-info{padding:14px}.pack-info h2{font-size:14px}.pack-info .row{gap:5px}.pack-info .badge,.pack-info .text-small{font-size:9px}.pack-info p{font-size:10px}.pack-meta{font-size:9px}.pack-cover span{font-size:9px;bottom:7px;left:10px}.filters{flex-wrap:wrap;gap:14px;padding:17px}.filters .field{flex:1;min-width:130px}.filters .field:first-child{flex:100%}.filters .check{white-space:normal;font-size:11px}.panel{border-radius:16px;padding:19px}.editor-tabs{gap:4px;margin:21px 0}.editor-tabs button{flex:none;min-width:105px}.editor-layout,.questions-layout,.audio-layout{grid-template-columns:1fr;gap:17px}.form-grid{grid-template-columns:1fr;gap:15px}.question-list{max-height:230px;overflow:auto}.question-list h3{z-index:1;background:#fff;position:sticky;top:-16px}.card-toolbar{align-items:flex-start}.card-toolbar .button{padding:8px;font-size:11px}.editor-footer{gap:15px;font-size:11px}.editor-footer .actions{gap:6px}.editor-footer .button{padding:8px 11px;font-size:11px}.tip-panel{order:2}.form-stack{gap:16px}.audio-playlist{max-height:210px}.recording-panel blockquote{padding:22px;font-size:20px}.recording-actions,.challenge-tools{flex-wrap:wrap}.challenge-tools>.field{flex:100%;max-width:none}.join-form{width:100%}.join-form .field{flex:1}.challenge-tile{padding:18px}.challenge-tile>.badge{font-size:9px;top:19px;right:12px}.challenge-tile h2{font-size:15px}.challenge-tile p{font-size:10px}.challenge-tile .quick-icon{width:34px;height:34px}.tile-link{font-size:10px}.login{grid-template-columns:1fr}.login-story{gap:25px;min-height:auto;padding:25px}.login-story h1{letter-spacing:-1.4px;font-size:34px}.login-story p{font-size:12px}.login-story>small,.story-cards{display:none}.login-form{padding:38px 25px}.login-form h2{font-size:26px}.review-stats{gap:8px}.review-stats strong{font-size:23px}.review-stats div{font-size:10px}.empty{padding:30px 20px}.app-footer{text-align:center;font-size:10px}.flashcard-preview h2{font-size:28px}}@media (max-width:390px){.pack-grid,.challenge-grid{grid-template-columns:1fr}.quick-card h2{font-size:13px}.button{font-size:12px}.quick-card p{font-size:10px}.quick-arrow{display:none}.account .button{min-height:30px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.cover-uploader{border-top:1px solid #d8dcef;margin-top:26px;padding-top:22px}.cover-uploader h3{align-items:center;gap:8px;display:flex}.cover-uploader p{margin:9px 0 15px!important;font-size:12px!important}.cover-uploader img{object-fit:contain;border:1px solid #d8dbed;border-radius:13px;width:100%;max-height:230px;display:block}.cover-uploader small{color:var(--muted);margin-top:14px;font-size:11px;display:block}.cover-uploader .button{padding:9px 12px;font-size:11px}.pack-cover>img{object-fit:cover;width:100%;height:100%}.pack-cover>span{z-index:1}.pack-tile.compact-pack{align-items:flex-start;gap:16px;padding:20px;display:flex}.compact-pack .pack-info{flex:1;min-width:0;padding:0}.compact-pack h2{margin:0 0 6px;font-size:1.12rem}.compact-pack p{-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:0 0 12px;display:-webkit-box;overflow:hidden}.pack-thumbnail{color:#151e68;background:#ebedfa;border-radius:14px;flex:0 0 52px;place-items:center;width:52px;height:52px;display:grid;overflow:hidden}.pack-thumbnail img{object-fit:cover;width:100%;height:100%}.pack-thumbnail.intermediate{color:#515fb7;background:#e8ecfb}.pack-thumbnail.advanced{color:#98633e;background:#f7ebdf}.pack-tile.unit-pack{border-radius:24px;flex-direction:column;gap:14px;padding:20px;display:flex}.unit-pack-heading{color:#242d7e;letter-spacing:.07em;justify-content:space-between;align-items:center;gap:12px;font-size:11px;font-weight:700;display:flex}.unit-pack>h2{min-height:2.6em;margin:0;font-size:21px;line-height:1.3}.unit-pack .pack-thumbnail{aspect-ratio:1.5;background:linear-gradient(135deg,#f1f0ff,#e3f4fc);border-radius:18px;flex:none;width:100%;height:auto}.unit-pack .pack-thumbnail img{object-fit:contain}.unit-pack .pack-info{flex-direction:column;flex:1;gap:14px;padding:0;display:flex}.unit-pack-objective{color:#151e68;background:#edf0ff;border:1px solid #d9dffb;border-radius:16px;padding:14px}.unit-pack-objective strong{font-size:11px;font-weight:600}.unit-pack-objective p{-webkit-line-clamp:unset;margin:6px 0 0;font-size:14px;font-weight:700;line-height:1.5;display:block;overflow:visible}.unit-pack-keywords{flex-wrap:wrap;gap:7px;display:flex}.unit-pack-keywords span{color:#151e68;background:#f8f9ff;border:1px solid #e2e6f4;border-radius:10px;padding:6px 10px;font-size:12px;font-weight:600}.unit-pack .pack-meta{margin-top:auto;line-height:1.5}.unit-pack-action{color:#151e68;justify-content:space-between;align-items:center;font-size:13px;font-weight:700;display:flex}.unit-cover-context{background:#f3f5ff;border:1px solid #d9dffb;border-radius:20px;align-items:center;gap:22px;margin:0 0 24px;padding:18px;display:flex}.unit-cover-context img{aspect-ratio:1.5;object-fit:contain;border-radius:14px;width:210px;max-width:40%}.unit-cover-context p{color:var(--muted);margin-bottom:0;font-size:13px;line-height:1.6}.logout-dialog{border:1px solid var(--line);background:var(--surface,#fff);width:min(440px,100% - 32px);color:var(--ink,#141722);border-radius:20px;padding:28px;box-shadow:0 24px 90px #080b1240}.logout-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#080b1266}.logout-dialog h2{margin-top:0}.logout-dialog p{margin-bottom:24px;line-height:1.6}.logout-dialog .actions{justify-content:flex-end}.card-simulation{text-align:center;width:100%;max-width:460px;margin:20px auto}.simulation-stage{perspective:1000px;margin-bottom:14px}.simulation-flipper{transform-style:preserve-3d;transition:transform .55s;display:grid}.simulation-flipper.flipped{transform:rotateY(180deg)}.simulation-face{backface-visibility:hidden;border:1px solid var(--line);overflow-wrap:anywhere;background:#eaf0ff;border-radius:20px;flex-direction:column;grid-area:1/1;justify-content:center;min-height:220px;padding:28px 20px;display:flex}.simulation-back{background:#fff;transform:rotateY(180deg)}.simulation-face h3{margin:20px 0;font-size:clamp(1.25rem,3vw,1.9rem);line-height:1.3}.simulation-language{letter-spacing:.12em;text-transform:uppercase;color:#646b7a;font-size:.72rem;font-weight:700}.simulation-example{margin:0;font-style:italic;line-height:1.5}.simulation-audio{text-align:left;gap:8px;margin-top:16px;display:grid}.simulation-audio audio{width:100%;max-width:100%}.recording-simulation{border-top:1px solid var(--line);margin-top:24px;padding-top:20px}.toast-region{top:calc(88px + env(safe-area-inset-top,0px));right:max(20px, env(safe-area-inset-right,0px));z-index:110;pointer-events:none;width:min(390px,100vw - 32px);position:fixed}.toast-message{border:1px solid var(--line);border-left:4px solid var(--primary);color:var(--ink);pointer-events:auto;background:#fff;border-radius:14px;align-items:center;gap:12px;padding:14px 12px 14px 16px;animation:.18s ease-out toast-enter;display:flex;box-shadow:0 10px 35px #14172226}.toast-message>svg{color:var(--primary);flex-shrink:0}.toast-message>span{flex:1;font-weight:600;line-height:1.45}.toast-message>button{width:32px;height:32px;color:var(--muted);background:0 0;border:0;border-radius:8px;flex-shrink:0;place-items:center;display:grid}.toast-message>button:hover,.toast-message>button:focus-visible{background:var(--accent);color:var(--primary)}@keyframes toast-enter{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@media (prefers-reduced-motion:reduce){.toast-message{animation:none}.simulation-flipper{transition:none}}@media (max-width:600px){.pack-tile.compact-pack{gap:12px;padding:16px}.compact-pack .pack-meta{font-size:.74rem}}@media (max-width:760px){.app-header nav{grid-template-columns:repeat(3,minmax(0,1fr));min-width:0;display:grid}.app-header nav a{min-width:0}}.learning-path-editor{margin:0;padding:0;list-style:none}.learning-path-editor>li{grid-template-columns:48px minmax(0,1fr);gap:16px;padding-bottom:24px;display:grid;position:relative}.learning-path-editor>li:not(:last-child):before{content:"";background:var(--border,#d9dfeb);width:2px;position:absolute;top:44px;bottom:0;left:23px}.path-node{color:#345bbd;background:#e9f0ff;border-radius:15px;place-items:center;width:46px;height:46px;display:grid}.path-node.cards{color:#7141a6;background:#f2eafa}.path-node.questions{color:#9b650b;background:#fff4db}.path-preview{padding:0;list-style:none}.path-preview li{border-bottom:1px solid var(--border,#d9dfeb);gap:14px;padding:14px 0;display:flex}.path-preview p{margin:4px 0}.path-preview-content{flex:1;min-width:0}.panda-video-preview{margin-top:16px}.panda-video-frame{aspect-ratio:16/9;background:#090d18;border-radius:16px;width:100%;max-width:960px;margin-top:14px;position:relative;overflow:hidden}.panda-video-frame iframe{border:0;width:100%;height:100%;position:absolute;inset:0}.learning-path-editor .section-heading{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;display:flex}.learning-path-editor h3{margin:0}.learning-path-editor .panel{min-width:0}.learning-path-editor input{width:100%}.path-fields summary{cursor:pointer;color:var(--primary,#243b82);padding:12px 0;font-weight:600}.path-fields[open] summary{margin-bottom:8px}.path-fields .field{margin-bottom:14px}.api-key-reveal textarea{overflow-wrap:anywhere;font-family:monospace}.api-key-packs{border:0;max-height:24rem;margin:1.5rem 0;padding:0;overflow:auto}.api-key-packs legend{font-weight:700}.api-key-packs label{align-items:center;gap:.75rem;padding:.6rem 0;display:flex}.api-key-packs input[type=checkbox]{flex-shrink:0;width:1.2rem;height:1.2rem}.api-key-packs span,.api-key-list p{overflow-wrap:anywhere}.api-key-list article{border-top:1px solid var(--line);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 0;display:flex}.api-key-list article>div{flex:16rem;min-width:0}.api-key-list h3{margin:0 0 .5rem}.product-selector{min-width:170px;max-width:260px}.product-selector .field{margin:0}.product-selector select{width:100%}.product-context{border-bottom:1px solid var(--line);background:#fff;padding:12px max(24px,50vw - 615px)}.product-context .product-selector{width:100%;max-width:420px}.product-settings{gap:20px;margin-bottom:28px;display:grid}.apps-gallery{padding-bottom:24px}.apps-grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:24px;display:grid}.app-tile{border:1px solid var(--line);text-align:left;min-width:0;color:inherit;cursor:pointer;background:#fff;border-radius:22px;flex-direction:column;align-items:flex-start;padding:28px;transition:border-color .15s,box-shadow .15s,transform .15s;display:flex}.app-tile:hover{border-color:#aab6ef;transform:translateY(-2px);box-shadow:0 10px 30px #18285b0d}.app-tile:focus-visible{outline-offset:4px;outline:3px solid #5666d8}.app-tile-icon{color:#3344a5;background:#eaf0ff;border-radius:21px;flex:none;place-items:center;width:88px;height:88px;margin-bottom:24px;font-size:30px;font-weight:750;display:grid;overflow:hidden}.app-tile-icon img{object-fit:cover;width:100%;height:100%}.app-icon-color-1{color:#16604f;background:#e1f4ed}.app-icon-color-2{color:#9b541e;background:#fff0df}.app-icon-color-3{color:#7043a1;background:#f0e7ff}.app-icon-color-4{color:#9d405d;background:#fce7ec}.app-tile strong{overflow-wrap:anywhere;font-size:20px;line-height:1.35}.app-tile-description{color:#6d7282;overflow-wrap:anywhere;margin-top:10px;margin-bottom:24px;font-size:14px;line-height:1.6}.app-tile-open{color:#3547a0;align-items:center;gap:8px;margin-top:auto;font-size:13px;font-weight:650;display:flex}.app-tile-new{background:0 0;border-style:dashed}.app-tile-new .app-tile-icon{background:#e9ecf7}.new-app-panel{max-width:680px;margin-bottom:28px}.new-app-panel h2{margin-bottom:8px}.new-app-panel p{color:#6d7282;margin-bottom:22px;line-height:1.6}.apps-gallery .page-heading{flex-wrap:wrap}@media (max-width:1400px){.app-header-workspace{flex-wrap:wrap}.app-header-workspace nav{flex-wrap:wrap;order:3;justify-content:center;width:100%;margin:0}.app-header-workspace .account{margin-left:auto}}.app-tile-container{flex-direction:column;gap:10px;min-width:0;display:flex;position:relative}.app-tile-container>.app-tile{flex:1;width:100%}.delete-app-dialog{max-height:calc(100dvh - 32px);margin:auto;overflow-y:auto}.app-tile-delete{color:#7b8190;cursor:pointer;background:0 0;border:0;border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;padding:0;transition:color .15s,background .15s;display:inline-flex;position:absolute;top:12px;right:12px}.app-tile-delete:hover{color:#b42318;background:#fef3f2}.app-tile-delete:focus-visible{outline:2px solid var(--accent,#292466);outline-offset:2px}.app-tile-delete:disabled{opacity:.45;cursor:default}
