.pe-er-host{min-width:0}.er-app{--er-ink:var(--pe-text,#14263c);--er-muted:var(--pe-text-muted,#617081);--er-paper:var(--pe-surface,#fff);--er-wash:var(--pe-bg,#f6f8f8);--er-border:var(--pe-border,#dfe5e5);--er-sage:#eaf1e8;--er-green:#2d6855;--er-sage-ink:#244f41;--er-gold:#b18a45;max-width:1260px;margin:auto;padding:28px 32px 64px;color:var(--er-ink);font-family:Nunito,system-ui,sans-serif;font-size:15px;line-height:1.6;min-width:0}.er-app *{box-sizing:border-box}.er-app [hidden]{display:none!important}.er-app button,.er-app input,.er-app select{font:inherit}.er-app button{cursor:pointer}.er-app button:disabled{cursor:default;opacity:.55}.er-app :focus-visible{outline:3px solid #508bbf;outline-offset:4px}.er-app svg{display:block}.er-app button svg{width:19px;height:19px;flex:0 0 19px}.er-app h1,.er-app h2,.er-app h3,.er-app p{margin-top:0}.er-topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:4px 0 25px}.er-brand{display:flex;gap:14px;align-items:center}.er-logo{width:52px;height:52px;border:1px solid #afc5b8;border-radius:15px;background:var(--er-sage);display:grid;place-items:center;color:var(--er-green);transform:rotate(-3deg)}.er-logo svg{width:28px;height:28px}.er-kicker,.er-side-label{display:block;font-size:10px;font-weight:900;letter-spacing:.16em;line-height:1.6;color:var(--er-green)}.er-brand h1{font-size:22px;font-weight:900;letter-spacing:-.045em;margin:2px 0 0}.er-top-actions{display:flex;align-items:center;gap:16px}.er-sync{font-size:11px;font-weight:700;max-width:190px;text-align:right;color:var(--er-muted)}.er-button{min-height:44px;padding:10px 17px;border:1px solid var(--er-border);border-radius:10px;background:var(--er-paper);color:var(--er-ink);font-weight:800;font-size:13px;display:inline-flex;gap:9px;align-items:center;justify-content:center;text-align:center;line-height:1.4;transition:background .15s,border-color .15s,transform .15s}.er-button:hover:not(:disabled){border-color:#9eafa6;transform:translateY(-1px)}.er-button--primary{background:#245f4d;color:#fff;border-color:#245f4d;box-shadow:0 3px 0 #194b3b}.er-button--primary:hover:not(:disabled){background:#194b3b;border-color:#194b3b}.er-button--quiet{background:transparent;box-shadow:none}.er-full{width:100%}.er-tabs{display:flex;gap:28px;border-bottom:1px solid var(--er-border);margin-bottom:35px;overflow:auto;scrollbar-width:thin}.er-tab{padding:13px 0 16px;border:0;border-bottom:3px solid transparent;background:transparent;color:var(--er-muted);display:inline-flex;gap:8px;align-items:center;white-space:nowrap;font-size:13px;font-weight:800;min-height:48px}.er-tab svg{width:17px;height:17px}.er-tab[aria-current=page]{border-color:var(--er-green);color:var(--er-green)}.er-count{display:inline-grid;place-items:center;font-size:10px;font-weight:900;min-width:21px;height:20px;padding:0 6px;background:var(--er-sage);border-radius:6px;color:var(--er-sage-ink)}.er-notice{font-size:12px;background:var(--er-sage);color:var(--er-sage-ink);border-left:3px solid #73987d;padding:12px 16px;border-radius:0 8px 8px 0;margin:-14px 0 26px}.er-workspace{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:46px;align-items:start}.er-reading{min-width:0}.er-meta{display:flex;align-items:center;gap:15px;flex-wrap:wrap;font-size:11px;color:var(--er-muted);font-weight:700;margin-bottom:16px}.er-chip{border:1px solid #c6d7c8;background:#f0f5ed;color:#43614a;font-size:10px;font-weight:900;padding:4px 8px;border-radius:5px}.er-title{font:500 clamp(35px,4vw,53px)/1.14 Georgia,'Times New Roman',serif;letter-spacing:-.045em;margin:0 0 15px;max-width:680px}.er-intro{color:var(--er-muted);font-size:14px;margin:0 0 25px}.er-cover{margin:0 0 18px;border-radius:16px;overflow:hidden}.er-cover svg{width:100%;height:auto}.er-reading-tools{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:8px 0 18px;border-bottom:1px solid var(--er-border);margin-bottom:25px}.er-hint{font-size:11px;color:var(--er-muted);margin:0!important}.er-font-controls{display:flex;border:1px solid var(--er-border);border-radius:8px;overflow:hidden;flex:0 0 auto}.er-font-controls button{border:0;background:var(--er-paper);color:var(--er-ink);min-width:40px;min-height:36px;font-family:Georgia,serif;font-size:15px}.er-font-controls button+button{border-left:1px solid var(--er-border)}.er-article{font-family:Georgia,'Times New Roman',serif;font-size:calc(21px * var(--er-font-scale,1));line-height:1.95;letter-spacing:.005em;color:var(--er-ink);user-select:text;-webkit-user-select:text;-webkit-touch-callout:default;overflow-wrap:break-word}.er-article::selection,.er-article ::selection{background:#d9e6b8;color:#132e24}.er-paragraph{margin:0 0 1.1em}.er-reading-footer{border-top:1px solid var(--er-border);padding-top:24px;margin-top:28px;display:flex;gap:20px;align-items:center;justify-content:space-between}.er-source{font-size:10px;color:var(--er-muted);line-height:1.8;margin:0!important;max-width:210px}.er-source span{display:block}.er-sidebar{display:grid;gap:18px}.er-side-card{border:1px solid var(--er-border);border-radius:15px;padding:22px;background:var(--er-paper)}.er-side-card--sage{background:var(--er-sage);border-color:#d6e1d3;color:var(--er-sage-ink)}.er-side-card h3{font:500 24px/1.35 Georgia,serif;letter-spacing:-.025em;margin:14px 0 20px}.er-how{padding-left:18px;font-size:12px;line-height:1.7;margin:0 0 20px}.er-how li{padding-left:3px;margin-bottom:12px}.er-how li::marker{color:#75927b;font-weight:800}.er-note{font-size:11px;line-height:1.7;color:var(--er-muted);margin:13px 0 0}.er-side-card--sage .er-note{color:#526b57}.er-side-card--sage .er-button{margin-top:15px;background:#f8faf4;border-color:#cbd9c7;color:#2b5544}.er-expression-list{display:grid;margin-top:12px}.er-expression-list button{border:0;border-bottom:1px solid var(--er-border);background:transparent;display:flex;gap:8px;justify-content:space-between;align-items:center;padding:12px 0;color:var(--er-ink);text-align:left;font-family:Georgia,serif;font-size:15px}.er-expression-list button:last-child{border-bottom:0}.er-expression-list button span{color:#789980}.er-input{display:block;width:100%;min-width:0;min-height:44px;background:var(--er-paper);color:var(--er-ink);border:1px solid var(--er-border);border-radius:9px;padding:10px 12px;font-size:13px!important}.er-input::placeholder{color:#7c8990}.er-side-card>.er-input{margin:13px 0 9px}.er-stat{font-size:40px;font-weight:900;letter-spacing:-.05em;margin:12px 0 16px;line-height:1.2}.er-stat small{display:block;font-size:11px;font-weight:700;letter-spacing:0;color:var(--er-muted);line-height:1.6;margin-top:5px}.er-selection-panel{position:fixed;z-index:2000;background:var(--er-paper);border:1px solid #afc3b6;box-shadow:0 16px 65px #102a3433,0 3px 13px #102a3412;border-radius:16px;padding:20px;overflow:auto;overscroll-behavior:contain;animation:er-appear .16s ease-out;isolation:isolate;max-width:calc(100vw - 24px)}.er-selection-header{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:-3px 0 11px}.er-close{border:0;border-radius:5px;width:30px;height:30px;background:transparent;color:var(--er-muted);font-size:25px!important;line-height:1}.er-close:hover{background:var(--er-sage)}.er-selected-text{font:500 21px/1.55 Georgia,serif;margin:0 0 13px!important;overflow-wrap:anywhere;padding-bottom:14px;border-bottom:1px solid var(--er-border);color:var(--er-ink)}.er-translation{font-size:15px;font-weight:700;color:var(--er-green);line-height:1.65;margin:0 0 7px!important;overflow-wrap:anywhere}.er-translation-result{margin-bottom:18px}.er-translation-result .er-note{font-size:10px;margin:0}.er-status{color:var(--er-muted);font-size:13px;padding:12px 0;margin:0}.er-callout{background:#fff4db;border:1px solid #e7d5a7;color:#745b26;border-radius:10px;padding:16px;font-size:13px}.er-callout p{margin:0 0 12px}.er-section-head{display:flex;justify-content:space-between;align-items:center;gap:24px;margin:0 0 30px}.er-section-head h2{font:500 37px/1.2 Georgia,serif;letter-spacing:-.035em;margin:7px 0 12px}.er-section-head p{font-size:13px;color:var(--er-muted);margin:0;max-width:620px}.er-stat--compact{font-size:35px;display:flex;gap:8px;align-items:baseline;white-space:nowrap}.er-toolbar{display:grid;grid-template-columns:minmax(0,1fr) minmax(140px,240px);gap:12px;margin:0 0 25px}.er-vocab-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.er-vocab-card{display:flex;flex-direction:column;min-width:0;padding:24px;border:1px solid var(--er-border);border-top:3px solid #96b29b;background:var(--er-paper);border-radius:12px;animation:er-appear .18s ease-out}.er-vocab-source{font-size:9px;color:var(--er-muted);text-transform:uppercase;font-weight:800;letter-spacing:.1em}.er-vocab-card h3{font:500 26px/1.4 Georgia,serif;margin:15px 0 17px;overflow-wrap:anywhere}.er-reveal{padding:8px 0;text-align:left;display:flex;justify-content:space-between;gap:12px;color:var(--er-green);font-size:12px!important;font-weight:800;background:transparent;border:0;border-bottom:1px solid var(--er-border)}.er-vocab-translation{font-size:14px;font-weight:700;overflow-wrap:anywhere;margin:14px 0 0!important;color:var(--er-green)}.er-vocab-card blockquote{margin:20px 0 24px;padding-left:13px;border-left:2px solid #c5d4c5;font:italic 14px/1.8 Georgia,serif;overflow-wrap:anywhere;color:var(--er-muted);flex:1}.er-vocab-card footer{display:flex;justify-content:space-between;align-items:center;gap:10px}.er-vocab-card footer .er-button{font-size:11px;border:0;padding:5px 0}.er-remove{border:0;background:none;color:var(--er-muted);font-size:10px!important;min-height:40px;text-decoration:underline;text-underline-offset:3px}.er-remove:hover{color:#a33e3e}.er-empty{text-align:center;background:var(--er-paper);border:1px dashed #b5c7ba;border-radius:16px;padding:60px 25px;color:var(--er-muted)}.er-empty>svg{width:47px;height:47px;margin:0 auto 22px;color:#72937b}.er-empty h3{font:500 26px/1.4 Georgia,serif;color:var(--er-ink);margin:0 0 12px}.er-empty p{font-size:13px;max-width:430px;margin:0 auto 25px}.er-quiz{max-width:920px;margin:0 auto}.er-question{min-width:0;margin:0 0 30px;padding:0;border:0}.er-question legend{display:block;float:left;width:100%;margin:0 0 18px;padding:0}.er-question legend>span{display:block;font-size:10px;font-weight:900;letter-spacing:.15em;color:var(--er-green);margin:0 0 10px}.er-question legend>strong{display:block;font:500 25px/1.5 Georgia,serif;letter-spacing:-.02em}.er-options{display:grid;gap:10px;clear:both}.er-option{display:flex;align-items:center;gap:14px;padding:17px 20px;border:1px solid var(--er-border);border-radius:10px;background:var(--er-paper);font-size:14px;line-height:1.65;cursor:pointer}.er-option:hover{border-color:#8fae98}.er-option input{accent-color:#2d6855;flex:0 0 auto}.er-option:has(input:checked){background:var(--er-sage);border-color:#6f997e}.er-option:has(input:disabled){cursor:default}.er-option-letter{font-size:11px;font-weight:900;color:var(--er-muted)}.er-option>span[lang]{flex:1;min-width:0}.er-option[data-correct=true]{border-color:#75a287;background:#edf5ed}.er-option[data-incorrect=true]{border-color:#ca9f9b;background:#fbefed}.er-option>svg{width:20px;height:20px;color:#2d6855;flex:0 0 auto}.er-feedback{padding:20px 22px;border-left:3px solid #8eb39b;background:var(--er-sage);color:var(--er-sage-ink);font-size:13px;line-height:1.8;margin-top:16px}.er-feedback strong{font-size:12px}.er-feedback p{margin:8px 0}.er-feedback blockquote{font:italic 16px/1.8 Georgia,serif;margin:12px 0 0;padding-left:13px;border-left:1px solid #a3c0a8}.er-quiz-validation{font-size:13px;color:#a23d30}.er-result{display:flex;gap:22px;align-items:center;padding:25px;background:var(--er-sage);border-radius:14px;color:var(--er-sage-ink)}.er-result>span{font-size:40px;font-weight:900;letter-spacing:-.05em;white-space:nowrap}.er-result h3{font-size:16px;margin:0 0 6px}.er-result p{font-size:12px;margin:0}.er-result .er-button{margin-left:auto;flex:0 0 auto}.er-toast{position:fixed;z-index:2200;bottom:28px;left:50%;transform:translateX(-50%);max-width:min(550px,calc(100vw - 30px));border:1px solid #749784;background:#183f32;color:#fff;padding:13px 20px;border-radius:10px;box-shadow:0 8px 25px #0002;font-size:13px;font-weight:700;line-height:1.6}.er-sr-only{position:absolute;width:1px;height:1px;margin:-1px;padding:0;clip:rect(0,0,0,0);overflow:hidden;white-space:nowrap;border:0}@keyframes er-appear{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1050px){.er-app{padding:24px 24px 50px}.er-workspace{grid-template-columns:minmax(0,1fr) 230px;gap:28px}.er-side-card{padding:18px}.er-title{font-size:44px}.er-vocab-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.er-reading-footer{flex-direction:column;align-items:flex-start}.er-article{font-size:calc(20px * var(--er-font-scale,1))}}
@media(max-width:760px){.er-app{padding:22px 20px 45px}.er-topbar{align-items:flex-start}.er-top-actions{flex-direction:column-reverse;align-items:flex-end;gap:8px}.er-sync{font-size:9px;max-width:145px}.er-top-actions>.er-button{min-height:36px;padding:7px 10px;font-size:10px}.er-brand{gap:10px}.er-logo{width:42px;height:42px;border-radius:12px}.er-logo svg{width:23px;height:23px}.er-brand h1{font-size:19px}.er-kicker{font-size:8px}.er-tabs{gap:23px;margin-bottom:24px}.er-tab{font-size:12px}.er-workspace{grid-template-columns:1fr;gap:34px}.er-sidebar{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.er-side-card{padding:19px}.er-side-card--sage{grid-column:1/-1}.er-side-card h3 br{display:none}.er-side-card h3{font-size:24px;margin:10px 0 16px}.er-how{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-bottom:12px}.er-side-card--sage .er-note{max-width:560px}.er-title{font-size:44px}.er-article{font-size:calc(20px * var(--er-font-scale,1))}.er-reading-footer{flex-direction:row;align-items:center}.er-section-head{align-items:flex-start}.er-section-head h2{font-size:32px}.er-result{flex-wrap:wrap}.er-result>div{flex:1;min-width:180px}.er-result .er-button{margin-left:0}.er-feedback{padding:16px}.er-question legend>strong{font-size:22px}.er-notice{font-size:10px;margin-top:-5px}}
@media(max-width:500px){.er-app{padding:18px 15px 40px}.er-topbar{gap:9px;padding-bottom:16px}.er-brand h1{font-size:16px}.er-logo{width:35px;height:38px;border-radius:10px}.er-brand{gap:8px}.er-top-actions .er-button{font-size:9px;padding:6px 8px;min-height:33px}.er-sync{max-width:100px;font-size:8px}.er-kicker{font-size:7px;letter-spacing:.11em}.er-tabs{gap:19px;margin-bottom:22px}.er-tab{font-size:10px;gap:5px;padding-top:8px;padding-bottom:11px}.er-tab svg{width:14px;height:14px}.er-count{font-size:9px;min-width:18px;height:18px;padding:0 4px}.er-meta{gap:10px;font-size:10px}.er-title{font-size:36px;margin-bottom:12px}.er-intro{font-size:12px}.er-cover{border-radius:12px;margin-bottom:12px}.er-article{font-size:calc(19px * var(--er-font-scale,1));line-height:1.9}.er-reading-tools{gap:12px;margin-bottom:22px}.er-hint{font-size:10px}.er-font-controls button{min-width:35px;min-height:34px}.er-sidebar{grid-template-columns:1fr}.er-side-card--sage{grid-column:auto}.er-how{display:block;margin-bottom:18px}.er-how li{margin-bottom:10px}.er-reading-footer{flex-direction:column;align-items:stretch;gap:17px}.er-source{max-width:none}.er-source span{display:inline}.er-reading-footer .er-button{width:100%}.er-vocab-grid{grid-template-columns:1fr}.er-toolbar{grid-template-columns:1fr}.er-vocab-card{padding:21px}.er-vocab-card h3{font-size:25px}.er-section-head{gap:15px;flex-wrap:wrap}.er-section-head h2{font-size:31px}.er-section-head p{font-size:12px}.er-quiz .er-section-head .er-button{font-size:11px}.er-question legend>strong{font-size:21px}.er-option{gap:9px;padding:14px 12px;font-size:13px}.er-option-letter{font-size:10px}.er-option input{margin:0}.er-feedback{font-size:12px;padding:16px 14px}.er-feedback blockquote{font-size:15px}.er-result{gap:13px;padding:19px}.er-selection-panel{padding:17px;border-radius:13px}.er-selected-text{font-size:20px}.er-translation{font-size:14px}.er-selection-panel .er-button{font-size:12px}.er-empty{padding:42px 20px}.er-empty h3{font-size:24px}.er-notice{padding:10px 12px;font-size:9px}.er-toast{bottom:18px;font-size:12px}}
[data-theme=dark] .er-app,.dark .er-app{--er-sage:#203e34;--er-green:#9cc7ad;--er-sage-ink:#c5ddcc}.dark .er-chip,[data-theme=dark] .er-chip{background:#203e34;color:#c5ddcc;border-color:#466554}.dark .er-side-card--sage,[data-theme=dark] .er-side-card--sage{border-color:#3b5848}.dark .er-side-card--sage .er-note,[data-theme=dark] .er-side-card--sage .er-note{color:#afc9b4}.dark .er-side-card--sage .er-button,[data-theme=dark] .er-side-card--sage .er-button{background:#294d3e;color:#d4e5d8;border-color:#4d6f5a}.dark .er-option[data-correct=true],[data-theme=dark] .er-option[data-correct=true]{background:#203e34}.dark .er-option[data-incorrect=true],[data-theme=dark] .er-option[data-incorrect=true]{background:#492d2c}.dark .er-button--primary,[data-theme=dark] .er-button--primary{color:#fff}.dark .er-callout,[data-theme=dark] .er-callout{background:#443924;border-color:#79633d;color:#ebd6a7}.dark .er-logo,[data-theme=dark] .er-logo{border-color:#446450}.dark .er-selection-panel,[data-theme=dark] .er-selection-panel{border-color:#64836f;box-shadow:0 18px 65px #0008}
.er-level-picker{border:1px solid var(--er-border);background:var(--er-paper);border-radius:15px;padding:20px;margin:-10px 0 30px}.er-level-heading{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:13px}.er-level-reference{font-size:10px;color:var(--er-muted)}.er-level-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.er-level-button{display:flex;align-items:center;gap:10px;min-width:0;min-height:56px;padding:12px 16px;border:1px solid var(--er-border);border-radius:9px;background:var(--er-wash);color:var(--er-ink);text-align:left;transition:background .15s,border-color .15s}.er-level-button>span{font-size:13px;font-weight:900;line-height:1.5;flex:1}.er-level-button>small{font-size:10px;color:var(--er-muted);font-weight:800}.er-level-button>svg{width:16px!important;height:16px!important;flex-basis:16px!important}.er-level-button:hover{border-color:var(--er-green)}.er-level-button[aria-pressed=true]{background:var(--er-sage);border-color:var(--er-green);color:var(--er-sage-ink);box-shadow:inset 0 0 0 1px var(--er-green)}.er-level-description{font-size:12px;line-height:1.7;color:var(--er-muted);margin:13px 0 0!important}.er-level-description>span{font-weight:700}.er-notebook-level-note{font-size:12px;color:var(--er-muted);margin:-13px 0 20px!important}
@media(max-width:760px){.er-level-picker{padding:17px;margin:-5px 0 26px}.er-level-buttons{gap:9px}.er-level-button{padding:11px 12px;flex-wrap:wrap;gap:4px 8px;align-content:center}.er-level-button>span{flex:0 0 100%;font-size:12px}.er-level-button>small{margin-right:auto}.er-level-button>svg{width:13px!important;height:13px!important}.er-level-reference{font-size:9px}.er-level-description{font-size:11px}}
@media(max-width:500px){.er-level-picker{padding:14px 12px;margin-bottom:23px}.er-level-heading{align-items:flex-start;flex-direction:column;gap:3px;margin-bottom:10px}.er-level-heading .er-side-label{font-size:8px}.er-level-reference{font-size:8px}.er-level-buttons{gap:6px}.er-level-button{padding:9px 8px;min-height:66px;align-content:space-between}.er-level-button>span{font-size:10px;line-height:1.5}.er-level-button>small{font-size:9px}.er-level-description{font-size:10px;line-height:1.8}.er-notebook-level-note{font-size:11px}}
.er-attempt-message{border:1px solid var(--er-border);border-radius:12px;background:var(--er-paper);padding:18px 20px;margin-top:16px;font-size:12px;line-height:1.8}.er-attempt-message>strong{display:block;font-size:13px}.er-attempt-message>p{margin:7px 0 12px}.er-attempt-message--saved{border-color:#a0bfa9;background:var(--er-sage);color:var(--er-sage-ink)}.er-attempt-message--error{border-color:#ddc497;background:#fff5e2;color:#76582b}.er-attempt-message .er-button{font-size:12px}.er-history-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.er-history-summary>div{display:flex;flex-direction:column;gap:8px;padding:23px;border:1px solid var(--er-border);border-radius:13px;background:var(--er-paper)}.er-history-summary span{font-size:11px;color:var(--er-muted)}.er-history-summary strong{font-size:34px;font-weight:900;line-height:1.2;color:var(--er-green)}.er-history-scope{margin:15px 0 23px}.er-history-links{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:24px}.er-history-links a{text-decoration:none}.er-history-list{display:grid;gap:14px;margin-top:22px}.er-history-card{display:grid;grid-template-columns:minmax(0,1fr) 75px auto;gap:25px;align-items:center;border:1px solid var(--er-border);border-left:3px solid #8dae96;border-radius:12px;background:var(--er-paper);padding:22px 24px}.er-history-card h3{font:500 23px/1.4 Georgia,serif;margin:8px 0;overflow-wrap:anywhere}.er-history-card p{font-size:11px;color:var(--er-muted);margin:0}.er-history-score{text-align:center;display:flex;flex-direction:column;gap:2px}.er-history-score strong{font-size:28px;line-height:1.2;color:var(--er-green)}.er-history-score span{font-size:10px;color:var(--er-muted)}.er-history-card .er-button{font-size:11px}.dark .er-attempt-message--error,[data-theme=dark] .er-attempt-message--error{background:#443924;color:#ebd6a7;border-color:#79633d}
@media(max-width:760px){.er-history-summary{gap:10px}.er-history-summary>div{padding:17px}.er-history-summary strong{font-size:29px}.er-history-card{gap:16px;padding:20px;grid-template-columns:minmax(0,1fr) 65px}.er-history-card>.er-button{grid-column:1/-1;justify-self:start}.er-attempt-message{padding:16px}.er-history-card h3{font-size:21px}}
@media(max-width:500px){.er-history-summary{gap:8px}.er-history-summary>div{padding:12px 9px;gap:9px}.er-history-summary span{font-size:9px;line-height:1.7}.er-history-summary strong{font-size:25px}.er-attempt-message>strong{font-size:12px}.er-attempt-message{font-size:11px}.er-history-card{padding:17px 15px;gap:13px}.er-history-card h3{font-size:20px}.er-history-score strong{font-size:25px}.er-history-links .er-button{font-size:11px}}
@media(prefers-reduced-motion:reduce){.er-app *{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(max-width:500px){.er-app .er-tabs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 12px;overflow:visible}.er-app .er-tab{min-width:0;min-height:56px;justify-content:center;text-align:center;white-space:normal;font-size:11px;line-height:1.35;padding:10px 4px}.er-app .er-tab .er-count{flex-shrink:0}.er-app .er-tab svg{display:none}}

/* A shared editorial library: artwork, topic filters, and readable cards. */
.er-library-hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:44px;align-items:center;background:linear-gradient(115deg,#e8f0e5,#f1f5e9);border:1px solid #d4dfcf;border-radius:20px;padding:38px 42px;margin:0 0 28px;color:#244f41}.er-library-hero h2{font:500 clamp(35px,4.4vw,54px)/1.1 Georgia,serif;letter-spacing:-.045em;margin:13px 0 19px}.er-library-hero p{font-size:14px;line-height:1.8;max-width:535px;margin:0;color:#4e6a55}.er-library-numbers{border-left:1px solid #c4d3bd;padding-left:36px}.er-library-numbers strong{font:500 64px/1 Georgia,serif;letter-spacing:-.05em;display:block}.er-library-numbers strong span{font:800 12px/1.6 Nunito,system-ui,sans-serif;letter-spacing:.02em;display:block;margin:10px 0 18px}.er-library-numbers p{font-size:12px;line-height:2}.er-library-tools{display:grid;gap:18px;margin-bottom:12px}.er-library-tools>.er-search{max-width:440px}.er-library-filters{display:flex;gap:8px;flex-wrap:wrap}.er-library-filters button{border:1px solid var(--er-border);background:var(--er-paper);border-radius:20px;padding:8px 15px;min-height:40px;color:var(--er-muted);font-size:12px;font-weight:800}.er-library-filters button[aria-pressed=true]{background:var(--er-green);border-color:var(--er-green);color:#fff}.er-library-count{margin:13px 0 19px}.er-library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:23px}.er-reading-card{border:1px solid var(--er-border);border-radius:15px;overflow:hidden;display:flex;flex-direction:column;background:var(--er-paper);transition:box-shadow .16s ease,border-color .16s ease;min-width:0}.er-reading-card:hover{border-color:#aabfae;box-shadow:0 9px 26px #183d2910}.er-card-art{background:#e5eee4;overflow:hidden}.er-card-art svg{width:100%;height:auto;display:block;border-radius:0}.er-card-body{display:flex;flex-direction:column;padding:24px;flex:1;min-width:0}.er-card-body h3{font:500 25px/1.25 Georgia,serif;letter-spacing:-.025em;margin:12px 0 9px;color:var(--er-ink)}.er-card-title-pt{font-size:11px;font-weight:800;color:var(--er-green);margin-bottom:13px}.er-card-summary{font-size:12px;color:var(--er-muted);line-height:1.75;margin:0 0 21px;flex:1}.er-card-meta{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;font-size:10px;font-weight:700;color:var(--er-muted);padding:13px 0;border-top:1px solid var(--er-border)}.er-card-body>.er-button{width:100%;margin-top:8px;justify-content:space-between}.er-back-library{border:0;background:none;padding:0 0 22px;color:var(--er-green);font-size:12px;font-weight:800;min-height:44px}.er-editorial-note{font-size:11px;line-height:1.8;color:var(--er-muted);margin:19px 0 10px}.er-reading-references{font-size:11px;color:var(--er-muted);margin:15px 0}.er-reading-references summary{cursor:pointer;min-height:34px;display:list-item}.er-reading-references ul{padding-left:18px;line-height:2}.er-reading-references a{color:var(--er-green);text-underline-offset:3px;overflow-wrap:anywhere}.dark .er-library-hero{background:linear-gradient(115deg,#253c32,#283a31);border-color:#405747;color:#e3eddb}.dark .er-library-hero p{color:#b4c8b1}.dark .er-library-numbers{border-color:#4a604b}.dark .er-card-title-pt,.dark .er-back-library{color:#b4d5b4}@media(max-width:1000px){.er-library-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.er-library-hero{padding:30px;gap:25px;grid-template-columns:minmax(0,1fr) 200px}.er-library-numbers{padding-left:24px}.er-library-hero h2{font-size:43px}}@media(max-width:620px){.er-library-hero{padding:25px 22px;grid-template-columns:1fr;gap:23px}.er-library-hero h2{font-size:37px}.er-library-numbers{padding:19px 0 0;border-left:0;border-top:1px solid #c4d3bd;display:flex;gap:28px;align-items:center}.er-library-numbers strong{font-size:48px}.er-library-numbers strong span{margin:6px 0 0;font-size:10px}.er-library-numbers p{font-size:10px}.er-library-grid{grid-template-columns:1fr;gap:18px}.er-card-body{padding:21px}.er-card-body h3{font-size:27px}.er-library-filters{gap:7px}.er-library-filters button{font-size:11px;padding:7px 12px}.er-library-tools>.er-search{max-width:none}}