/* Original classelia practice interface, shared by classroom and catalog previews. */
.learn-book-reference{margin:16px 0 22px;border:1px solid #dfe6df;border-radius:10px;background:#f8faf6}.learn-book-reference>summary{padding:13px 16px;color:#345d45;font-size:13px;font-weight:600;cursor:pointer}.learn-book-reference>.learn-book-source{padding:0 12px;margin:0 0 12px}.learn-book-reference>summary:focus-visible{outline:2px solid #599b83;outline-offset:2px;border-radius:10px}
.learn-exercise-head>div{min-width:0;flex:1}
.learn-answer-textarea{display:block;width:100%;max-width:600px;margin-top:6px;padding:9px 12px;border:1px solid #dce3d9;border-radius:9px;background:#fcfdfb;font:inherit;font-size:16px;line-height:1.65;color:#293c30;resize:vertical}.learn-answer-textarea:focus-visible{outline:2px solid #599b83;outline-offset:3px}.learn-answer-textarea:disabled{opacity:1;background:#f5f7f2;color:#3d5144}.is-pending .learn-answer-textarea{border-color:#d6c899}.is-correct .learn-answer-textarea{border-color:#84b69b}.is-incorrect .learn-answer-textarea{border-color:#ce9a89;background:#fff9f5}
.learn-book-number{min-width:44px;width:auto!important;padding:0 9px;font-size:14px!important}.learn-book-source{margin:18px 0 24px;min-width:0}.learn-book-source figure{margin:0 0 14px;padding:8px;background:#fff;border:1px solid #dfe6df;border-radius:12px}.learn-book-source figure>a{display:block}.learn-book-source img{display:block;width:100%;height:auto;border-radius:6px}.learn-book-source figcaption{padding:10px 6px 4px;font-size:12px;text-align:right}.learn-book-source figcaption a{color:#276e5b;text-underline-offset:3px}.learn-source-text{font-size:13px;color:#65746b}.learn-source-text summary{cursor:pointer;padding:7px 0}.learn-source-text>div{padding:16px;background:#f6f7f4;border-radius:9px;white-space:pre-wrap;line-height:1.8;overflow-wrap:anywhere}.learn-review-notice{padding:12px 15px;background:#f8f5e9;border:1px solid #ebe4c7;border-radius:9px;color:#776940;font-size:12px!important;line-height:1.65!important}.learn-tally.is-pending{background:#f6f0dc;color:#80703e;font-size:11px;white-space:normal;text-align:center;line-height:1.45}.learn-question.is-pending .learn-feedback,.learn-saved.is-pending{color:#82713e}.learn-question.is-pending input{border-color:#d6c899}.learn-review{margin-top:14px;padding:14px;background:#f6f7f3;border:1px solid #e0e6da;border-radius:10px}.learn-review>span{font-size:12px;color:#596e5c;font-weight:600}.learn-review-choices{display:flex;gap:8px;margin:10px 0 14px}.learn-review-choices button{border:1px solid #d2ddce;border-radius:7px;background:#fff;color:#416044;cursor:pointer;padding:9px 16px;font:inherit;font-size:13px}.learn-review-choices button[aria-pressed=true]{background:#2c6247;color:#fff;border-color:#2c6247}.learn-review label{display:block;font-size:12px!important;font-weight:400!important;color:#667462}.learn-review textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;resize:vertical;border:1px solid #d2ddce;border-radius:7px;background:#fff;color:#293c30;font:inherit;line-height:1.6}.learn-review textarea:focus-visible{outline:2px solid #599b83;outline-offset:2px}
.mat-results-count{grid-column:1/-1;margin:0;color:var(--muted,#6c756f);font-size:13px}.mat-load-more{grid-column:1/-1;text-align:center;padding:12px}.mat-russian-title{display:block;color:#59675f;font-size:14px;line-height:1.5;margin:3px 0 8px}.mat-topic-section{display:block;color:#2c6654;font-size:11px;font-weight:650;letter-spacing:.02em}.mat-search-filters{flex-wrap:wrap}.mat-search-filters .search-field{flex:1 1 250px}.mat-search-filters select{max-width:230px}.mat-toolbar{align-items:flex-start}.mat-picker-filters{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0 18px}.mat-picker-filters input{flex:1 1 100%}.mat-picker-filters select{flex:1;min-width:140px}.mat-catalog-picker{max-height:55vh;overflow:auto}.mat-catalog-row small{color:#718077}.mat-exercise-selection{border:0;padding:10px 0 0;margin:0;display:flex;flex-wrap:wrap;gap:6px 14px}.mat-exercise-selection legend{font-size:12px;color:#758077;padding:0}.mat-exercise-selection label{font-size:13px!important;font-weight:500!important;display:flex;align-items:center;gap:7px}.mat-exercise-selection input{width:16px!important;height:16px;accent-color:#276e5b}.mat-exercise-selection small{font-size:10px;color:#758077}.mat-selected-row{align-items:flex-start}.mat-selected-copy{min-width:0}
.learn-exercises{display:grid;gap:12px;margin-top:12px;container:practice / inline-size}.learn-exercise{background:#fff;border:1px solid #e1e8e1;border-radius:14px;padding:18px}.learn-exercise-head{display:flex;align-items:center;gap:10px}.learn-step{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:#eaf0df;color:#2a5a45;font-size:15px;font-weight:650}.learn-exercise-head h3{font-size:18px!important;line-height:1.3!important;margin:2px 0 0!important;letter-spacing:-.02em}.learn-exercise-head .eyebrow{display:block;line-height:1.4;font-size:10px;letter-spacing:.09em;color:#6c776f}.learn-instructions{font-size:14px!important;line-height:1.5!important;color:#69776e;margin:9px 0 12px}.learn-passage{padding:16px;border-radius:12px;background:#f6f4ee;border-left:3px solid #b3be8a;font-size:17px;line-height:1.7;white-space:pre-wrap;color:#303b34;margin:10px 0 14px}.learn-questions{list-style:none!important;padding:0!important;margin:0;display:grid;gap:0}.learn-question{display:grid;grid-template-columns:20px minmax(0,1fr);gap:10px;padding:10px 0;border-top:1px solid #edf0e9}.learn-question-number{color:#8a958c;font-size:12px;padding-top:8px}.learn-question-text,.learn-sentence{display:block;font-size:16px!important;line-height:1.55;font-weight:450!important;color:#303b34}.learn-question input{display:block;width:100%;max-width:440px;margin-top:6px;padding:8px 12px;min-height:38px;border:1px solid #dce3d9;border-radius:9px;background:#fcfdfb;font:inherit;font-size:16px;line-height:1.4;outline-offset:3px;color:#293c30}.learn-question input:focus{outline:2px solid #599b83;border-color:transparent}.learn-question input:disabled{opacity:1;background:#f5f7f2;color:#3d5144}.learn-word-bank{display:flex;flex-wrap:wrap;gap:8px;padding:12px;border-radius:10px;background:#edf4ef;margin:10px 0 14px}.learn-word{cursor:grab;padding:7px 12px;border:1px solid #c9dccc;border-radius:8px;background:white;color:#245943;font:inherit;font-size:16px;line-height:1.4;min-height:38px;box-shadow:0 2px 0 #c9dccc;touch-action:manipulation}.learn-word:hover{background:#e4efdf}.learn-word.is-selected{background:#285a48;color:#fff;border-color:#285a48}.learn-word:disabled{opacity:.65;cursor:default;box-shadow:none}.learn-gap{display:inline-block;vertical-align:baseline;min-width:130px;max-width:100%;margin:2px 7px;padding:7px 12px;border:1.5px dashed #9ab39f;border-radius:7px;background:#f3f7f1;color:#6e8375;font:inherit;font-size:15px;line-height:1.4;cursor:pointer;overflow-wrap:anywhere;min-height:38px}.learn-gap.is-filled{border-style:solid;background:#e4efe3;color:#25523b}.learn-gap:disabled{cursor:default;opacity:1}.learn-feedback{margin-top:7px;font-size:13px;line-height:1.65;color:#2d7354}.learn-feedback p{font-size:13px!important;line-height:1.6!important;margin:4px 0 0}.is-incorrect .learn-feedback{color:#9a4935}.is-correct input,.is-correct .learn-gap{border-color:#84b69b}.is-incorrect input,.is-incorrect .learn-gap{border-color:#ce9a89;background:#fff9f5}.learn-exercise-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:12px;padding-top:12px;border-top:1px solid #e5ebe2}.learn-exercise-footer p{font-size:12px!important;line-height:1.6!important;color:#7c857b;margin:0;max-width:250px}.learn-exercise-footer .btn{flex-shrink:0}.learn-tally{margin-left:auto;white-space:nowrap;font-size:17px;font-weight:650;color:#386b50;background:#eef4e5;border-radius:9px;padding:8px 12px}.learn-saved{font-size:13px!important;color:#477d5f}.learn-teacher-answer{margin-top:6px;color:#69736a;font-size:12px}.learn-teacher-answer summary{cursor:pointer;min-height:24px;line-height:1.6}.learn-teacher-answer p{font-size:13px!important;line-height:1.6!important;margin:6px 0}.learn-summary{padding:24px;margin:24px;border-radius:15px;background:#f3f5ec;border:1px solid #e1e6d5}.learn-summary>div{display:flex;justify-content:space-between;gap:12px;font-size:14px}.learn-summary>div span{color:#72806c;font-size:12px}.learn-summary progress{width:100%;height:8px;border:0;border-radius:10px;margin:16px 0;accent-color:#367454}.learn-summary .btn{width:100%}.learn-fine{font-size:12px!important;line-height:1.6!important;color:#7a8479;margin:8px 0 0!important}.learn-result{padding:26px;margin:24px;border-radius:17px;background:#eaf1dc;display:flex;align-items:center;gap:26px;border:1px solid #d8e5c3}.learn-score{font-size:64px;font-weight:650;letter-spacing:-.06em;line-height:1;color:#2d6041;white-space:nowrap}.learn-score small{font-size:20px;color:#829573;letter-spacing:0;margin-left:5px}.learn-result h3{margin:6px 0!important;font-size:21px!important}.learn-result p{font-size:14px;line-height:1.6;margin:0}.learn-material-nav{display:flex;flex-wrap:wrap;gap:6px;padding:15px 24px;background:#f9faf6;border-bottom:1px solid #e9ede2}.learn-material-nav>span{flex-basis:100%;font-size:11px;text-transform:uppercase;letter-spacing:.08em;color:#7d8978;margin-bottom:5px}.learn-material-nav button{border:1px solid #dfe6d7;border-radius:6px;padding:7px 10px;background:#fff;color:#5a6d57;font-size:12px;cursor:pointer}.learn-material-nav button.is-active{background:#2c6247;border-color:#2c6247;color:#fff}.learn-exercise button:focus-visible,.learn-material-nav button:focus-visible{outline:3px solid #709981;outline-offset:3px}
@media(max-width:700px){.learn-exercise{padding:14px;border-radius:12px}.learn-passage{padding:16px;font-size:17px}.learn-exercise-head h3{font-size:18px!important}.learn-question{grid-template-columns:18px minmax(0,1fr);gap:6px}.learn-exercise-footer{align-items:stretch;flex-direction:column;gap:12px}.learn-exercise-footer p{max-width:none}.learn-exercise-footer button{width:100%}.learn-summary,.learn-result{margin:15px;padding:18px}.learn-result{gap:16px;align-items:flex-start}.learn-score{font-size:44px}.learn-score small{font-size:15px}.learn-summary>div{flex-direction:column;gap:4px}.mat-search-filters select{max-width:none;flex:1 1 120px}.mat-selected-row{gap:8px}.mat-row-controls{flex-direction:column}.mat-exercise-selection{flex-direction:column}.learn-gap{margin:4px;min-width:100px}.learn-word{padding:10px 12px}.learn-material-nav{padding:12px}.learn-exercise-head .eyebrow{font-size:9px}.learn-step{width:32px;height:32px}}
.learn-word{touch-action:none;user-select:none}.learn-drag-ghost{position:fixed;z-index:99999;pointer-events:none;padding:10px 16px;border:1px solid #618c6c;border-radius:8px;background:#2c6247;color:#fff;box-shadow:0 6px 25px #203c3a33;font-size:16px}.learn-gap.is-drop-target{outline:3px solid #77a480;outline-offset:3px;background:#d7ead5}
.learn-library-help{background:#edf3e4;border-radius:12px;padding:18px;margin-bottom:20px}.learn-library-help p{font-size:13px;line-height:1.6;color:#65745c}.learn-library-help .btn{margin:4px 6px 0 0}
@media(max-width:1100px){.cl-studio:not(.cl-studio-live) .cl-studio-workspace{grid-template-columns:minmax(0,1fr)}.cl-studio:not(.cl-studio-live) .cl-studio-rail>[data-shared-notes]{min-height:250px}}
.mat-library-intro{flex-wrap:wrap;gap:22px}.mat-library-intro>div:nth-child(2){flex:1 1 260px;min-width:0}.mat-library-intro>.btn{margin-left:0;align-self:center}.mat-library-intro p{line-height:1.7;font-size:14px}.mat-library-intro h2{font-size:27px;line-height:1.18}@media(max-width:700px){.mat-library-intro>div:nth-child(2){flex-basis:200px}.mat-library-intro>.btn{margin-left:0}.mat-intro-symbol{display:none}}

/* A calm, readable study guide shared by the lesson and catalog preview. */
.learn-material-tabs{display:flex;gap:6px;align-items:center;margin:0 0 12px;padding:4px;background:#edf1ed;border-radius:12px;width:max-content;max-width:100%}.learn-material-tabs button{border:0;background:transparent;color:#62736a;padding:8px 16px;border-radius:9px;font-family:inherit;font-size:14px;font-weight:600;line-height:1.2;cursor:pointer}.learn-material-tabs button[aria-selected=true]{background:#fff;color:#174e3a;box-shadow:0 2px 6px #1c403312}.learn-material-tabs button:focus-visible{outline:2px solid #39775f;outline-offset:2px}.learn-theory{color:#2e3f36;line-height:1.7;font-size:15px}.learn-theory-intro{padding:25px 28px;background:#edf4ee;border:1px solid #dce8df;border-radius:16px;margin-bottom:28px}.learn-theory-intro h3{font-size:27px;letter-spacing:-.6px;margin:5px 0 12px;color:#214d39}.learn-theory-intro p{margin:0;max-width:78ch}.learn-theory-section{margin:30px 0}.learn-theory-section h4{font-size:17px;letter-spacing:-.2px;display:flex;align-items:center;gap:11px;margin:0 0 17px}.learn-theory-section h4>span{font-size:11px;letter-spacing:.5px;color:#48745b;background:#eef3ee;border-radius:8px;padding:4px 8px}.learn-rule-list{padding-left:24px;margin:0;display:grid;gap:12px}.learn-rule-list li{padding-left:5px}.learn-rule-list li::marker{color:#4a8665}.learn-form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:12px}.learn-form{padding:18px;border:1px solid #dfe6df;border-radius:12px;min-width:0}.learn-form strong{display:block;font-size:13px;margin-bottom:9px}.learn-form code{display:block;white-space:normal;overflow-wrap:anywhere;padding:11px;background:#f5f6f2;border-radius:7px;font-size:13px;color:#385a45}.learn-form p{margin:12px 0 0;font-size:14px}.learn-example-list{display:grid;gap:14px}.learn-example{border-left:3px solid #a8c5b2;padding:3px 0 3px 18px}.learn-example p{margin:0 0 5px;font-size:16px;font-weight:600}.learn-example .learn-example-translation{font-size:14px;font-weight:400;color:#718075}.learn-example small,.learn-mistake small{display:block;color:#68776c;line-height:1.65;font-size:13px}.learn-mistakes{display:grid;gap:12px}.learn-mistake{padding:16px 19px;border-radius:12px;background:#fbf8f3;border:1px solid #ede4d7}.learn-mistake p{display:flex;flex-wrap:wrap;gap:8px 24px;margin:0 0 7px;font-size:14px}.learn-wrong{color:#a65645}.learn-right{color:#327554;font-weight:600}.learn-tip{border-radius:12px;padding:19px 22px;background:#f3f1fa;border:1px solid #e4e0ef;margin:26px 0}.learn-tip strong{color:#62547e;font-size:14px}.learn-tip p{margin:5px 0 0;font-size:14px}.learn-theory-next{display:flex;justify-content:flex-end;margin-top:22px}.learn-theory [data-dictionary-text] .dict-inline-word{font-size:inherit;font-weight:inherit}@media(max-width:600px){.learn-theory-intro{padding:20px}.learn-theory-intro h3{font-size:23px}.learn-material-tabs{width:100%}.learn-material-tabs button{flex:1}.learn-theory-section{margin:25px 0}.learn-mistake p{display:grid}}

.modal-wide:has(.learn-book-source){width:1000px}.learn-book-credit{font-size:11px;color:#7b847c;line-height:1.5;margin:6px 0 12px}

/* Book practice is real text: the answer controls sit inside its sentences. */
.learn-native-content{margin:12px 0 4px;min-width:0}.learn-native-paragraph{font-size:16px!important;line-height:1.9!important;white-space:pre-wrap;overflow-wrap:anywhere;color:#34453a;margin:14px 0}.learn-native-heading{font-size:15px!important;line-height:1.5!important;margin:24px 0 10px;color:#31543f}.learn-native-list{padding-left:24px;margin:16px 0;display:grid;gap:9px;color:#34453a;font-size:16px;line-height:1.8}.learn-native-list li{white-space:pre-wrap;overflow-wrap:anywhere}.learn-native-options{list-style:none;padding:15px 18px;border:1px solid #e1e7dc;background:#f6f8f2;border-radius:10px}.learn-native-question{grid-template-columns:minmax(20px,max-content) minmax(0,1fr);margin:0;padding:10px 0;gap:10px}.learn-native-question.is-unnumbered{grid-template-columns:minmax(0,1fr)}.learn-native-question-body{min-width:0}.learn-native-question .learn-question-number{line-height:2.25;white-space:nowrap;padding-top:0}.learn-native-sentence{font-size:17px;line-height:2.25;color:#303f35;white-space:pre-wrap;overflow-wrap:anywhere}.learn-inline-slot{display:inline}.learn-native-sentence .learn-inline-answer{display:inline-block;width:var(--answer-width,14ch);max-width:100%;min-width:0;min-height:40px;margin:3px 5px;padding:6px 10px;vertical-align:baseline;border:1px solid #b4c9b7;border-bottom:2px solid #639273;border-radius:7px;background:#f7faf4;color:#274b35;font:inherit;font-size:16px;line-height:1.5;box-sizing:border-box}.learn-native-sentence .learn-inline-answer:focus{outline:2px solid #599b83;outline-offset:2px;border-color:#599b83;background:#fff}.learn-native-sentence .learn-inline-answer:disabled{opacity:1;color:#344e3e;background:#f3f6ef}.learn-native-sentence .learn-inline-answer.is-multiline{vertical-align:middle;width:min(100%,38ch);min-height:78px;resize:vertical}.learn-native-sentence .learn-gap{vertical-align:baseline;margin:3px 5px}.learn-inline-slot.is-correct .learn-inline-answer{border-color:#77a789;background:#f1f8ee}.learn-inline-slot.is-incorrect .learn-inline-answer{border-color:#c68f7b;background:#fff8f4}.learn-inline-slot.is-pending .learn-inline-answer{border-color:#c9b978;background:#fbf9ee}.learn-native-result{margin-top:6px;padding:0 0 0 12px;border-left:2px solid #e0e7dc}.learn-native-result.is-correct{border-left-color:#8cb39b}.learn-native-result.is-incorrect{border-left-color:#d1a392}.learn-native-result.is-pending{border-left-color:#d3c58e}.learn-native-result .learn-feedback{margin-top:3px}.learn-native-result.is-pending .learn-feedback{color:#82713e}.learn-feedback-number{display:block;color:#778374;font-size:11px;line-height:1.5}.learn-repeated-answer{color:#386148;font-weight:600}.learn-native-sentence .dict-inline-word{font:inherit}.modal-wide:has(.learn-native-content){width:1000px}@media(max-width:600px){.learn-native-sentence{font-size:17px;line-height:2.4}.learn-native-question{gap:8px}.learn-native-sentence .learn-inline-answer{max-width:calc(100% - 10px)}.learn-native-paragraph,.learn-native-list{font-size:15px!important}.learn-native-options{padding:12px}.learn-native-result{padding-left:9px}}

.learn-shared-hint{font-size:12px;line-height:1.5;color:#70806d;margin:8px 0 3px}
.learn-draft-status{font-size:11px;line-height:1.5;color:#6c8569;margin:0;overflow-wrap:anywhere}
.learn-draft-status[data-draft-status=error],.learn-draft-status[data-draft-status=conflict]{padding:12px 14px;border:1px solid #e4ccb1;border-radius:9px;background:#fff9ee;color:#866339}
.learn-draft-status ul{margin:8px 0;padding-left:18px}.learn-draft-status>div{display:flex;flex-wrap:wrap;gap:8px;margin-top:9px}
.learn-draft-status button{font-size:11px;padding:7px 10px;border:1px solid #d8c9ad;border-radius:6px;background:#fffdf7;color:#6e5b3c;min-height:30px}
.learn-draft-status button:hover{background:#f0eadb}

/* Use the available practice width, including inside lesson rails and previews. */
.learn-question-body { min-width: 0; }
.learn-native-comparison { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 12px 0 18px; }
.learn-native-comparison > section { min-width: 0; padding: 14px 18px; border: 1px solid #dfe6dc; border-radius: 10px; background: #f7f9f3; }
.learn-native-comparison > section:last-child { background: #edf4ef; }
.learn-native-comparison h4 { margin: 0 0 8px; font-size: 12px; line-height: 1.5; letter-spacing: .06em; color: #45644b; }
.learn-native-comparison ul { margin: 0; padding-left: 18px; font-size: 15px; line-height: 1.6; }
.learn-native-comparison li + li { margin-top: 3px; }
.learn-response-clause { display: inline-flex; align-items: baseline; vertical-align: middle; max-width: 100%; }
.learn-response-connector { flex: none; white-space: pre; }
.learn-response-clause.is-long-connector { display: inline; }
.learn-response-clause.is-long-connector .learn-response-connector { white-space: pre-wrap; }
.learn-native-sentence .learn-response-part { flex: 0 1 auto; min-width: 0; }
@media (max-width: 600px) {
  .learn-native-comparison { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .learn-native-comparison > section { padding: 12px 14px; }
}
@container practice (min-width: 700px) {
  .learn-question-body:has(> input) {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(180px, 30%);
    align-items: center;
    gap: 6px 16px;
  }
  .learn-question-body > input { margin-top: 0; max-width: none; }
  .learn-question-body:has(> input) > :is(.learn-feedback, .learn-review, .learn-teacher-answer) {
    grid-column: 1 / -1;
    margin-top: 0;
  }
}
@media (max-width: 700px) {
  .learn-question input, .learn-native-sentence .learn-inline-answer,
  .learn-word, .learn-gap { min-height: 44px; }
}