@font-face{font-family:Inter;src:url('assets/1b08e7fc267a5c7e1d61.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url('assets/e7a1aaf7eda9f2fad413.ttf') format('truetype');font-weight:600;font-display:swap}
@font-face{font-family:Inter;src:url('assets/b37284b5701b6b168dfc.ttf') format('truetype');font-weight:700;font-display:swap}
@font-face{font-family:Inter;src:url('assets/eec66af7f2337bd34fe6.ttf') format('truetype');font-weight:800;font-display:swap}
@font-face{font-family:'Playfair Display';src:url('assets/adefc53e7b3d483f1fa5.ttf') format('truetype');font-weight:700;font-display:swap}
@font-face{font-family:'Playfair Display';src:url('assets/71a599c413e0126bb042.ttf') format('truetype');font-weight:800;font-display:swap}
@font-face{font-family:'Playfair Display';src:url('assets/c549b1064828d22e398c.ttf') format('truetype');font-weight:900;font-display:swap}
@font-face{font-family:'LP Live Playfair';src:url('https://fonts.gstatic.com/s/playfairdisplay/v40/nuFiD-vYSZviVYUb_rj3ij__anPXDTzYgA.woff2') format('woff2');font-weight:700 900;font-style:normal;font-display:swap}
@font-face{font-family:'LP Live Inter';src:url('https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7.woff2') format('woff2');font-weight:400 900;font-style:normal;font-display:swap}
/* Colours come from themes.js. Geometry has one owner. */



*{box-sizing:border-box}html{font-size:16px;scrollbar-gutter:stable}body{margin:0;background:var(--page);color:var(--text);font-family:Inter,Arial,sans-serif;line-height:1.5}
button,a,input{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:3px solid var(--focus);outline-offset:4px}
.wrap{width:min(1100px,calc(100% - 64px));margin-inline:auto}
.site-header{background:linear-gradient(108deg,var(--header-left) 59%,var(--header-right) 59%);color:var(--header-text)}
.header-main{height:108px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{font-family:'LP Live Playfair','Playfair Display',Georgia,serif;font-weight:900;font-size:31px;line-height:.88;letter-spacing:0;flex:none}.brand span{display:block;margin-top:8px;font:900 10px/.88 'LP Live Inter',Inter,system-ui,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:var(--brand-accent)}
.header-actions{display:flex;gap:20px;align-items:center}.theme-switch{width:48px;height:48px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:0;border:0;border-radius:6px;background:transparent;color:var(--header-text);padding:2px 3px}.theme-switch:hover{background:var(--shadow)}
.theme-icon,.theme-icon svg{display:block;width:29px;height:29px}.theme-icon{flex:0 0 29px}.theme-chevron{width:10px;height:7px;flex:0 0 7px;margin-top:1px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:46px;padding:11px 23px;border:1px solid var(--button-border);border-radius:10px;background:var(--button);color:var(--button-text);font-size:.875rem;line-height:1.5;font-weight:700;white-space:nowrap;transition:background-color .15s ease}.button:hover{background:var(--button-hover)}.button:disabled{background:var(--disabled);color:var(--disabled-text);border-color:var(--disabled)}
.primary-nav{border-top:1px solid color-mix(in srgb,var(--header-text) 18%,transparent)}.nav-inner{display:flex;gap:36px}.nav-inner a{position:relative;padding:12px 0 14px;font-size:.875rem;font-weight:700;line-height:1.5}.nav-inner a[aria-current]{color:var(--nav-active)}.nav-line{position:absolute;bottom:0;left:0;right:0;height:3px;border-radius:3px 3px 0 0;background:transparent}.nav-inner a[aria-current] .nav-line{background:var(--nav-active)}
.learning-layout{max-width:880px;padding-block:30px 22px}.lesson-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.back{min-width:102px}.unit-label{font-size:.8125rem;color:var(--muted);margin:0}.unit-label span{margin-inline:12px;color:var(--muted)}
.lesson-heading{display:flex;justify-content:space-between;gap:24px;align-items:center;padding-block:27px 25px}.eyebrow{font-size:.6875rem;font-weight:800;letter-spacing:1.7px;color:var(--selection);margin:0 0 6px;line-height:1.5}h1{font-family:'Playfair Display',Georgia,serif;font-size:40px;line-height:1.14;letter-spacing:-.9px;margin:0 0 10px;font-weight:800}.lead{margin:0;color:var(--muted);font-size:1rem}.lesson-number{font-size:.625rem;letter-spacing:1.5px;font-weight:700;text-align:right;color:var(--muted)}.lesson-number strong{display:block;font-family:'Playfair Display',Georgia,serif;font-size:42px;letter-spacing:-1px;line-height:1.2;color:var(--text)}
.activity-card{border:1px solid var(--border);border-radius:18px;background:var(--surface);overflow:hidden;box-shadow:0 8px 24px var(--shadow)}.activity-progress{display:flex;justify-content:space-between;padding:19px 28px 12px;font-size:.8125rem;font-weight:600;color:var(--muted)}.progress-track{height:4px;background:var(--track);margin-inline:28px;border-radius:4px}.progress-track span{display:block;width:20%;height:100%;background:var(--progress);border-radius:4px}
.question-body{padding:26px 54px 27px}.instruction{font-size:.875rem;color:var(--muted);margin:0 0 8px;text-align:center}h2{font-family:'Playfair Display',Georgia,serif;font-weight:800;font-size:32px;line-height:1.25;text-align:center;margin:0 0 23px;letter-spacing:-.4px}.answers{margin:0;padding:0;border:0;display:grid;grid-template-columns:1fr;gap:10px}.answer{position:relative;min-height:56px;display:flex;align-items:center;gap:16px;border:1px solid var(--border);border-radius:10px;padding:10px 16px;cursor:pointer;font-weight:600;background:var(--surface);transition:background-color .15s ease}.answer:has(input:checked){background:var(--selected);border-color:var(--selection);box-shadow:inset 0 0 0 1px var(--selection)}.answer:has(input:focus-visible){outline:3px solid var(--focus);outline-offset:3px}.answer input{position:absolute;opacity:0;width:1px;height:1px}.choice-marker{color:var(--muted);font-size:.75rem;font-weight:600;width:23px}.choice-ring{width:19px;height:19px;margin-left:auto;border:1.5px solid var(--muted);border-radius:50%;display:grid;place-items:center}.choice-ring:after{content:'';height:9px;width:9px;border-radius:50%;background:transparent}.answer:has(input:checked) .choice-ring{border-color:var(--selection)}.answer:has(input:checked) .choice-ring:after{background:var(--selection)}
.activity-bottom{border-top:1px solid var(--border);background:var(--soft);display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:93px;padding:20px 28px}.feedback{display:flex;align-items:center;gap:14px}.feedback-symbol{display:grid;place-items:center;flex:0 0 32px;height:32px;border:1px solid var(--border);border-radius:50%;font-size:17px}.feedback-title{font-size:.875rem;font-weight:700}.feedback-text{font-size:.8125rem;line-height:1.5;margin:3px 0 0;color:var(--muted)}.check{min-width:146px}.activity-bottom[data-state="success"]{background:var(--success-bg)}.activity-bottom[data-state="success"] .feedback{color:var(--success)}.activity-bottom[data-state="error"]{background:var(--error-bg)}.activity-bottom[data-state="error"] .feedback{color:var(--error)}
.next-lesson{display:flex;align-items:center;gap:24px;padding:20px 0;border-bottom:1px solid var(--border)}.next-lesson .eyebrow{font-size:.625rem;letter-spacing:1.5px}.next-lesson p{margin:0;font-size:.9375rem;font-weight:700}.next-description{font-size:.8125rem;margin-left:auto;color:var(--muted)}.next-arrow{color:var(--selection);font-size:22px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.preview-toast{position:fixed;bottom:16px;left:50%;transform:translateX(-50%);width:min(480px,calc(100% - 32px));padding:14px 18px;background:var(--text);color:var(--page);border-radius:10px;box-shadow:0 5px 20px var(--shadow);font-size:.875rem;z-index:5}
@media(max-width:600px){
  .wrap{width:calc(100% - 32px)}.header-main{height:89px;gap:8px}.brand{font-size:23px;letter-spacing:-.6px}.brand span{font-size:8px;letter-spacing:.8px;margin-top:8px}.header-actions{gap:9px}.theme-switch{width:42px;height:42px;padding:0}.create-account{padding:10px 12px;min-height:42px;font-size:.875rem}.nav-inner{gap:26px}.nav-inner a{font-size:.8125rem;padding-block:11px 12px}
  .learning-layout{padding-block:21px 20px}.lesson-top{gap:12px;align-items:center}.back{min-width:85px;padding:10px 15px;min-height:42px}.unit-label{max-width:180px;text-align:right;font-size:.75rem;line-height:1.55}.unit-label span{margin-inline:5px}.lesson-heading{padding-block:24px 22px;gap:10px}.eyebrow{font-size:.5625rem;letter-spacing:1.2px;margin-bottom:7px}h1{font-size:31px;letter-spacing:-.7px;margin-bottom:9px}.lead{font-size:.875rem;line-height:1.6;max-width:260px}.lesson-number{font-size:.5rem;letter-spacing:1px}.lesson-number strong{font-size:32px}.activity-card{border-radius:14px}.activity-progress{padding:16px 18px 10px;font-size:.75rem}.progress-track{margin-inline:18px}.question-body{padding:23px 18px 23px}.instruction{font-size:.875rem}h2{font-size:28px;margin-bottom:21px}.answer{min-height:54px;padding:10px 13px;gap:10px;font-size:.9375rem}.activity-bottom{padding:16px 18px;flex-direction:column;align-items:stretch;gap:15px}.feedback{gap:11px}.feedback-title{font-size:.875rem}.feedback-text{font-size:.8125rem}.check{width:100%;min-height:46px}.next-lesson{gap:12px;padding-block:19px}.next-description{font-size:.75rem;max-width:132px;line-height:1.5}.next-lesson p{font-size:.875rem}.next-arrow{font-size:20px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Theme disclosure: absolute positioning preserves the approved page geometry. */
.theme-picker{position:relative;flex:none}
.theme-switch:focus-visible{outline-color:var(--header-text)}
.theme-chevron{width:8px;height:8px;flex:0 0 8px;transition:transform .15s}
.theme-switch[aria-expanded="true"] .theme-chevron{transform:rotate(180deg)}
.theme-menu{position:absolute;z-index:10;top:calc(100% + 10px);right:0;width:224px;max-width:calc(100vw - 32px);padding:12px 8px 8px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text);font-family:'LP Live Inter',Inter,system-ui,sans-serif;box-shadow:0 8px 24px var(--shadow)}
.theme-menu[hidden]{display:none}
.theme-menu-heading{margin:0 10px 8px;font-size:12px;font-weight:700;color:var(--muted)}
.theme-option{display:flex;align-items:center;gap:12px;width:100%;height:48px;padding:8px 10px;border:0;border-radius:7px;background:transparent;color:var(--text);text-align:left;font-family:inherit;font-size:14px;font-weight:900;line-height:1.2}
.theme-option:hover{background:var(--soft)}
.theme-option[aria-checked="true"]{background:var(--selected);font-weight:900}
.theme-option:focus-visible{outline:2px solid var(--focus);outline-offset:-2px}
.theme-option-check{margin-left:auto;color:var(--selection);visibility:hidden;font-size:18px}
.theme-option[aria-checked="true"] .theme-option-check{visibility:visible}
/* Keep Guided Journey navigation clear while its catalogue request is loading. */
.path-loading{display:flex;align-items:center;gap:16px;padding:28px;margin-block:20px}.path-loading-spinner{display:block;width:24px;height:24px;flex:0 0 24px;border:3px solid var(--track);border-top-color:var(--progress);border-radius:50%;animation:path-loading-spin .8s linear infinite}.path-loading h2{margin:0 0 5px}.path-loading .help{margin:0}@keyframes path-loading-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.path-loading-spinner{animation:none}}
/* APK exercise focus: the document stays still; long exercises scroll internally. */
html.lp-android:has(#app > .exercise-card){height:100%;overflow:hidden}
.lp-android body:has(#app > .exercise-card){height:100dvh;overflow:hidden;padding:0}
.lp-android body:has(#app > .exercise-card) .site-header,.lp-android body:has(#app > .exercise-card) .home-footer{display:none!important}
.lp-android #app:has(> .exercise-card){position:fixed;inset:0 0 calc(92px + env(safe-area-inset-bottom,0px));width:100%;max-width:none;margin:0;padding:12px;overflow:hidden;box-sizing:border-box}
.lp-android #app:has(> .exercise-card)>:not(.exercise-card){display:none!important}
.lp-android #app>.exercise-card{height:100%;max-height:100%;width:100%;max-width:none;margin:0;display:flex;flex-direction:column;overflow:auto;overscroll-behavior:contain;box-sizing:border-box}
.lp-android #app>.exercise-card .activity-progress{padding:14px 18px 8px;flex-shrink:0}
.lp-android #app>.exercise-card .progress-track{flex-shrink:0}
.lp-android #app>.exercise-card .question-body{padding:18px;flex:1 0 auto}
.lp-android #app>.exercise-card .question-body h2{font-size:clamp(24px,7vw,32px);margin-bottom:16px}
.lp-android #app>.exercise-card .answers{gap:8px}
.lp-android #app>.exercise-card .answer{min-height:48px;padding:10px 12px}
.lp-android #app>.exercise-card .activity-bottom{flex-shrink:0;padding:14px 18px;gap:10px}
.lesson-restart-dialog{box-sizing:border-box;width:min(440px,calc(100% - 32px));max-height:calc(100dvh - 40px);overflow:auto;padding:28px;border:1px solid var(--border);border-radius:20px;background:var(--surface);color:var(--text);box-shadow:0 20px 60px var(--shadow)}
.lesson-restart-dialog::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(4px)}
.lesson-restart-dialog .eyebrow{color:var(--selection);margin:0 0 12px}
.lesson-restart-dialog h2{text-align:left;font-size:28px;margin:0 0 14px}
.lesson-restart-dialog>p:not(.eyebrow){font-size:15px;line-height:1.65;color:var(--muted);margin:0 0 24px}
.lesson-restart-dialog .form-actions{display:flex;gap:12px;flex-wrap:wrap;margin:0}
.lesson-restart-dialog .button{flex:1;min-height:46px;border-radius:10px;white-space:nowrap}
.lesson-restart-dialog .restart-cancel{background:var(--soft);color:var(--text);border:1px solid var(--border)}
/* Programmatic question focus should not draw a box around the heading. */
.exercise-card #question-title:focus{outline:none;box-shadow:none}

.exercise-restart{align-self:flex-end;margin:8px 18px;padding:6px 0;border:0;background:transparent;color:var(--muted);font:600 12px/1.4 "LP Live Inter",Inter,sans-serif;cursor:pointer}
.ac-shell{max-width:1000px;margin:24px auto 60px}.ac-identity{display:flex;gap:20px;align-items:center;margin:0 0 28px}.ac-avatar{display:grid;place-items:center;width:64px;height:64px;border-radius:18px;background:var(--selected);color:var(--selection);font-size:28px;font-weight:700}.ac-identity h2{margin:0;text-align:left;font-size:28px}.ac-identity p{margin:6px 0;color:var(--muted)}.ac-categories{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:26px}.ac-category,.ac-panel{padding:26px;border:1px solid var(--border);border-radius:18px;background:var(--surface);color:var(--text);text-decoration:none;box-shadow:0 8px 22px var(--shadow)}.ac-category{transition:transform .15s,border-color .15s}.ac-category:hover{transform:translateY(-2px);border-color:var(--selection)}.ac-category h2,.ac-panel h2{font-size:24px;text-align:left;margin:0 0 12px}.ac-category p,.ac-panel p{color:var(--muted);line-height:1.6}.ac-panel{margin-bottom:20px}.ac-panel form{display:grid;gap:18px;max-width:600px}.ac-panel label{display:grid;gap:8px;font-size:14px;font-weight:600}.ac-panel input:not([type=checkbox]){width:100%;box-sizing:border-box;padding:12px;border-radius:10px;border:1px solid var(--border);background:var(--soft);color:var(--text);font:inherit}.ac-panel .ac-toggle{display:flex;align-items:center;gap:14px;padding:12px 0}.ac-toggle input{width:22px;height:22px;accent-color:var(--selection);flex-shrink:0}.ac-toggle small{display:block;font-weight:400;margin-top:6px;color:var(--muted);line-height:1.5}.ac-update{display:grid;gap:6px;padding:16px 0;border-bottom:1px solid var(--border);color:var(--text);text-decoration:none}.ac-update small{color:var(--muted)}.ac-lesson{padding:18px 0;border-bottom:1px solid var(--border)}.account-notice-badge{position:absolute;right:-5px;top:-5px;min-width:18px;padding:2px 5px;border-radius:12px;background:var(--selection);color:var(--surface);font:bold 11px/1.4 Arial,sans-serif;text-align:center}.lp-mascot-disabled .pd-companion,.lp-mascot-disabled [data-mascot],.lp-mascot-disabled .mascot-widget,.lp-mascot-disabled .mascot-minimized{display:none!important}@media(max-width:600px){.ac-categories{grid-template-columns:1fr}.ac-panel,.ac-category{padding:20px}.ac-identity h2{font-size:24px;overflow-wrap:anywhere}}@media(prefers-reduced-motion:reduce){.ac-category{transition:none}}
.ac-count{display:inline-block;padding:2px 8px;border-radius:8px;background:var(--selected);color:var(--text);font:700 12px/1.5 Inter,sans-serif}

/* Keep unread counts outside the circular profile photo. */
.header-actions .create-account.account-avatar{overflow:visible}.header-actions [data-account] .account-notice-badge{display:grid;place-items:center;position:absolute;z-index:2;top:-6px;right:-7px;box-sizing:border-box;min-width:24px;height:24px;padding:0 5px;border:2px solid #fff;border-radius:999px;background:#c52232;color:#fff;font:700 12px/1 Arial,sans-serif;box-shadow:0 2px 5px #0004;pointer-events:none}

/* Categorized administration shortcuts. */
.ac-admin-hub{display:grid;gap:30px}.ac-admin-group>header{margin-bottom:14px}.ac-admin-group>header h2{margin:0 0 5px;font-size:24px;color:var(--text)}.ac-admin-group>header p{margin:0;color:var(--muted)}.ac-admin-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.ac-admin-tile{display:flex;align-items:center;gap:14px;padding:22px 18px;min-height:116px;border:1px solid var(--border);border-radius:18px;background:var(--surface);color:var(--text);text-decoration:none;box-shadow:0 4px 14px var(--shadow);transition:transform .18s,border-color .18s,background .18s}.ac-admin-group:first-child .ac-admin-grid{grid-template-columns:1fr}.ac-admin-group:first-child .ac-admin-tile{background:var(--soft)}.ac-admin-icon{display:grid;place-items:center;width:44px;height:44px;flex:0 0 44px;border-radius:13px;background:var(--soft);color:var(--brand-accent)}.ac-admin-icon svg{width:24px;height:24px}.ac-admin-copy{display:grid;gap:6px;min-width:0}.ac-admin-copy strong{font-size:16px;color:var(--text)}.ac-admin-copy small{font-size:13px;line-height:1.5;color:var(--muted)}.ac-admin-arrow{margin-left:auto;font-size:25px;color:var(--brand-accent)}.ac-admin-tile:hover{transform:translateY(-3px);border-color:var(--brand-accent);background:var(--soft)}.ac-admin-tile:focus-visible{outline:3px solid var(--focus);outline-offset:3px}@media(max-width:900px){.ac-admin-grid{grid-template-columns:1fr}.ac-admin-tile{min-height:90px;padding:18px}}@media(prefers-reduced-motion:reduce){.ac-admin-tile{transition:none}.ac-admin-tile:hover{transform:none}}
.ac-admin-group>header h2{text-align:left}.ac-admin-icon,.ac-admin-arrow{color:var(--text)}
.inline-correction-dialog{width:min(620px,calc(100vw - 32px));max-height:85dvh;overflow:auto;padding:24px;border:1px solid var(--border);border-radius:20px;background:var(--surface);color:var(--text);box-shadow:0 20px 80px #0006}.inline-correction-dialog::backdrop{background:#0008}.inline-correction-dialog label{display:grid;gap:6px;margin:14px 0}.inline-correction-dialog textarea,.inline-correction-dialog input,.inline-correction-dialog select{width:100%;box-sizing:border-box;padding:10px;font:inherit;color:var(--text);background:var(--soft);border:1px solid var(--border);border-radius:8px}.inline-correction-dialog h2{text-align:left;margin-top:0}.ic-close{float:right;background:transparent;color:var(--text);border:0;font-size:28px;cursor:pointer}.inline-edit-question{margin-bottom:10px;color:var(--text);font-size:13px}.inline-correction-dialog fieldset{border:1px solid var(--border);border-radius:10px}

/* Keep application notices above the persistent navigation, in the active theme. */
.preview-toast{box-sizing:border-box;background:var(--surface);color:var(--text);border:1px solid var(--selection);line-height:1.5;z-index:1200;overflow-wrap:anywhere;max-height:40dvh;overflow:auto}