diff --git a/site/src/main.rs b/site/src/main.rs
index dbe866b..d1a0f85 100644
--- a/site/src/main.rs
+++ b/site/src/main.rs
@@ -73,29 +73,31 @@ fn App() -> impl IntoView {
                 <p class="lede">{format!("{word_count} слов для спокойной тренировки. Нажмите на слово, чтобы увидеть его чтение.")}</p>
             </header>
 
-            <section class="reading-card" aria-labelledby="reading-heading">
-                <div class="section-heading">
-                    <p class="section-number">"01"</p>
-                    <div>
-                        <h2 id="reading-heading">{reading_text.title}</h2>
-                        <p>"Каждое слово — отдельная карточка для слуха и произношения."</p>
-                    </div>
-                    <p class="word-count">{format!("{word_count} слов")}</p>
-                </div>
-                <p class="reading-text">
-                    {render_reading_text(reading_text, selected_id, select_word, activate_key)}
-                </p>
-            </section>
+            <div class="reader-workspace">
+                <section class="detail-panel" aria-live="polite" aria-labelledby="detail-heading">
+                    {move || selected_id.get().and_then(word_by_id).map(|word| detail_view(word, audio_ref, audio_state, toggle_audio)).unwrap_or_else(|| view! {
+                        <div class="detail-empty">
+                            <p class="detail-kicker">"Словарная карточка"</p>
+                            <h2 id="detail-heading">"Выберите слово в тексте"</h2>
+                            <p>"Карточка покажет написание, американское произношение и русскую подсказку."</p>
+                        </div>
+                    }.into_any())}
+                </section>
 
-            <section class="detail-panel" aria-live="polite" aria-labelledby="detail-heading">
-                {move || selected_id.get().and_then(word_by_id).map(|word| detail_view(word, audio_ref, audio_state, toggle_audio)).unwrap_or_else(|| view! {
-                    <div class="detail-empty">
-                        <p class="detail-kicker">"Словарная карточка"</p>
-                        <h2 id="detail-heading">"Выберите слово в тексте"</h2>
-                        <p>"Карточка покажет написание, американское произношение и русскую подсказку."</p>
+                <section class="reading-card" aria-labelledby="reading-heading">
+                    <div class="section-heading">
+                        <p class="section-number">"01"</p>
+                        <div>
+                            <h2 id="reading-heading">{reading_text.title}</h2>
+                            <p>"Каждое слово — отдельная карточка для слуха и произношения."</p>
+                        </div>
+                        <p class="word-count">{format!("{word_count} слов")}</p>
                     </div>
-                }.into_any())}
-            </section>
+                    <p class="reading-text">
+                        {render_reading_text(reading_text, selected_id, select_word, activate_key)}
+                    </p>
+                </section>
+            </div>
 
             <section class="dictionary-section" aria-labelledby="dictionary-heading">
                 <div class="dictionary-heading">
diff --git a/site/style.css b/site/style.css
index 1d6e383..5546c7c 100644
--- a/site/style.css
+++ b/site/style.css
@@ -35,6 +35,10 @@
   --type-detail: 1.4rem;
   --type-heading: clamp(1.8rem, 4vw, 3.2rem);
   --type-display: clamp(2.8rem, 8vw, 6.5rem);
+  --workspace-detail-min: 18rem;
+  --workspace-detail-column: 1fr;
+  --workspace-reading-column: 1.65fr;
+  --workspace-height: min(44rem, calc(100svh - var(--space-7) - var(--space-7) - var(--space-6)));
 }
 
 * { box-sizing: border-box; }
@@ -49,8 +53,10 @@ h1 { font-family: var(--serif); font-size: var(--type-display); font-weight: 400
 h1 em { color: var(--coral); display: block; }
 h2 { font-family: var(--serif); font-size: var(--type-heading); font-weight: 400; letter-spacing: -0.04em; margin-bottom: var(--space-2); }
 .lede { font-size: var(--type-lede); line-height: 1.55; max-width: 36rem; }
-.reading-card, .detail-panel, .dictionary-section { border: var(--border-width) solid var(--line); border-radius: var(--radius-lg); margin-bottom: var(--space-6); }
+.reading-card, .detail-panel, .dictionary-section { border: var(--border-width) solid var(--line); border-radius: var(--radius-lg); }
+.reader-workspace { display: grid; gap: var(--space-6); grid-template-columns: minmax(var(--workspace-detail-min), var(--workspace-detail-column)) minmax(0, var(--workspace-reading-column)); height: var(--workspace-height); margin-bottom: var(--space-6); }
 .reading-card { background: var(--surface); box-shadow: var(--shadow); padding: var(--space-6); }
+.reader-workspace .reading-card { min-height: 0; overflow-y: auto; overscroll-behavior: contain; scroll-padding: var(--space-4); }
 .section-heading, .dictionary-heading { align-items: flex-start; display: flex; gap: var(--space-4); }
 .section-heading > div, .dictionary-heading > div { flex: 1; }
 .section-heading p:not(.section-number), .dictionary-heading p:not(.section-number) { color: var(--ink-muted); line-height: 1.5; }
@@ -60,6 +66,7 @@ h2 { font-family: var(--serif); font-size: var(--type-heading); font-weight: 400
 .reading-word:hover, .reading-word:focus-visible, .reading-word.active { background: var(--sun); border-color: var(--coral); color: var(--ink); outline: none; }
 .punctuation { white-space: pre; }
 .detail-panel { background: var(--forest); color: var(--paper); min-height: 17rem; padding: var(--space-6); }
+.reader-workspace .detail-panel { align-self: start; position: sticky; top: var(--space-5); }
 .detail-kicker { color: var(--sun); }
 .detail-content h2 { color: var(--sun); }
 .pronunciation-grid { display: grid; gap: var(--space-4); grid-template-columns: repeat(2, minmax(0, 1fr)); margin: var(--space-5) 0; }
@@ -71,7 +78,7 @@ dd { font-family: var(--serif); font-size: var(--type-detail); margin: 0; }
 .audio-button:disabled { background: transparent; border-color: var(--forest-light); color: var(--forest-pale); cursor: not-allowed; }
 .audio-note { color: var(--forest-pale); font-size: var(--type-caption); margin: var(--space-3) 0 0; }
 .detail-empty { max-width: 32rem; }
-.dictionary-section { background: var(--mist); padding: var(--space-6); }
+.dictionary-section { background: var(--mist); margin-bottom: var(--space-6); padding: var(--space-6); }
 .search-label { display: block; font-size: var(--type-caption); font-weight: 800; margin: var(--space-5) 0 var(--space-2); }
 input { background: var(--input); border: var(--border-width) solid var(--ink); border-radius: var(--radius-sm); color: var(--ink); padding: var(--space-3); width: min(100%, 34rem); }
 input:focus-visible { outline: var(--space-1) solid var(--coral); outline-offset: var(--space-1); }
@@ -81,4 +88,6 @@ th, td { border-bottom: var(--border-width) solid var(--line); padding: var(--sp
 th { color: var(--forest); font-size: var(--type-overline); letter-spacing: 0.08em; text-transform: uppercase; }
 .table-word { background: none; border: 0; border-bottom: 1px solid var(--forest); color: var(--forest); font-weight: 800; padding: 0; }
 .table-word:hover, .table-word:focus-visible { color: var(--coral); outline: none; }
+@media (min-width: 80rem) { .lesson-shell { width: calc(100% - clamp(4rem, 5vw, 12rem)); } }
+@media (max-width: 58rem) { .reader-workspace { display: flex; flex-direction: column; height: auto; } .reader-workspace .reading-card { order: -1; overflow: visible; } .reader-workspace .detail-panel { position: static; } }
 @media (max-width: 38rem) { .lesson-shell { width: min(100% - var(--space-4), 76rem); padding: var(--space-5) 0; } .reading-card, .detail-panel, .dictionary-section { padding: var(--space-4); } .section-heading, .dictionary-heading { gap: var(--space-3); } .word-count { display: none; } .pronunciation-grid { grid-template-columns: 1fr; } }