Add short transitions for navigation, answers and progress on every platform.

Co-authored-by: Cursor <cursoragent@cursor.com>

android/app/src/main/java/org/maturita/maturita/AppViewModel.kt

@@ -34,6 +34,9 @@ class AppViewModel(app: Application) : AndroidViewModel(app) {
         private set
     var showChangelog by mutableStateOf(shouldShowChangelog())
         private set
+    /** True when the latest navigation moved deeper; false for back and tab switches. */
+    var navigatingForward by mutableStateOf(true)
+        private set
 
     private val stack = mutableStateListOf<Route>(Route.Subjects)
     val route: Route get() = stack.last()
@@ -50,11 +53,13 @@ class AppViewModel(app: Application) : AndroidViewModel(app) {
         searchOpen = false
         if (stack.last() == r) return
         if (r.isRoot) {
+            navigatingForward = false
             val target = if (r == Route.Welcome) Route.Subjects else r
             stack.clear()
             stack.add(target)
             return
         }
+        navigatingForward = true
         if (root != Route.Subjects) {
             stack.clear()
             stack.addAll(r.stack())
@@ -72,17 +77,20 @@ class AppViewModel(app: Application) : AndroidViewModel(app) {
     fun openPage(page: String) {
         val r = routeFromPage(page) ?: return
         searchOpen = false
+        navigatingForward = true
         stack.clear()
         stack.addAll(r.stack())
     }
 
     /** Replace the current screen (lesson slides -> its exercise). */
     fun replace(r: Route) {
+        navigatingForward = true
         if (stack.size > 1) stack.removeAt(stack.lastIndex)
         stack.add(r)
     }
 
     fun back() {
+        navigatingForward = false
         when {
             stack.size > 1 -> stack.removeAt(stack.lastIndex)
             root != Route.Subjects -> go(Route.Subjects)

android/app/src/main/java/org/maturita/maturita/MainActivity.kt

@@ -2,6 +2,14 @@ package org.maturita.maturita
 
 import android.os.Bundle
 import java.util.Locale
+import androidx.compose.animation.AnimatedContent
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.slideInHorizontally
+import androidx.compose.animation.slideOutHorizontally
+import androidx.compose.animation.togetherWith
 import android.util.TypedValue
 import android.view.ViewGroup
 import android.widget.Button
@@ -206,7 +214,24 @@ private fun MaturitaAppBody(vm: AppViewModel) {
         if (vm.searchOpen) vm.searchOpen = false else vm.back()
     }
     Box(Modifier.fillMaxSize()) {
-        when (val r = vm.route) {
+        AnimatedContent(
+            targetState = vm.route,
+            modifier = Modifier.fillMaxSize(),
+            transitionSpec = {
+                val tabs = targetState.isRoot && initialState.isRoot
+                if (tabs) {
+                    fadeIn(tween(180)) togetherWith fadeOut(tween(140))
+                } else if (vm.navigatingForward) {
+                    (fadeIn(tween(220)) + slideInHorizontally(tween(220)) { it / 5 })
+                        .togetherWith(fadeOut(tween(150)) + slideOutHorizontally(tween(150)) { -it / 8 })
+                } else {
+                    (fadeIn(tween(220)) + slideInHorizontally(tween(220)) { -it / 8 })
+                        .togetherWith(fadeOut(tween(150)) + slideOutHorizontally(tween(150)) { it / 5 })
+                }
+            },
+            label = "screen",
+        ) { route ->
+        when (val r = route) {
             Route.Welcome, Route.Subjects -> HomeScreen(vm)
             Route.Stats -> StatsScreen(vm)
             Route.Settings -> SettingsScreen(vm)
@@ -609,6 +634,13 @@ private fun MaturitaAppBody(vm: AppViewModel) {
             is Route.BookQuiz -> LitQuizScreen(vm, r.id)
             is Route.BookPlot -> PlotScreen(vm, r.id)
         }
-        if (vm.searchOpen) SearchScreen(vm)
+        }
+        AnimatedVisibility(
+            visible = vm.searchOpen,
+            enter = fadeIn(tween(160)),
+            exit = fadeOut(tween(120)),
+        ) {
+            Box(Modifier.fillMaxSize()) { SearchScreen(vm) }
+        }
     }
 }

android/app/src/main/java/org/maturita/maturita/ui/Components.kt

@@ -1,5 +1,13 @@
 package org.maturita.maturita.ui
 
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.expandVertically
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.shrinkVertically
+import androidx.compose.animation.animateColorAsState
 import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
@@ -36,6 +44,7 @@ import androidx.compose.material3.FilterChip
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
 import androidx.compose.material3.LargeTopAppBar
+import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.ListItem
 import androidx.compose.material3.ListItemDefaults
 import androidx.compose.material3.MaterialTheme
@@ -53,9 +62,11 @@ import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.Typography
 import androidx.compose.material3.rememberTopAppBarState
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.font.FontFamily
@@ -234,8 +245,12 @@ fun ActionBar(
                 .windowInsetsPadding(WindowInsets.navigationBars)
                 .padding(horizontal = 16.dp, vertical = 12.dp),
         ) {
-            if (feedback.isNotEmpty()) {
+            AnimatedVisibility(
-                FeedbackLine(feedback, kind)
+                visible = feedback.isNotEmpty(),
+                enter = fadeIn(tween(180)) + expandVertically(),
+                exit = fadeOut(tween(120)) + shrinkVertically(),
+            ) {
+                FeedbackLine(feedback, kind, animate = false)
                 Spacer(Modifier.height(10.dp))
             }
             Row(horizontalArrangement = Arrangement.spacedBy(10.dp)) {
@@ -309,8 +324,27 @@ fun PillButton(label: String, modifier: Modifier = Modifier, onClick: () -> Unit
 }
 
 @Composable
-fun FeedbackLine(text: String, kind: String) {
+fun SmoothProgress(
-    if (text.isEmpty()) return
+    progress: Float,
+    modifier: Modifier = Modifier,
+    color: Color = MaterialTheme.colorScheme.primary,
+    trackColor: Color = MaterialTheme.colorScheme.surfaceVariant,
+) {
+    val animated by animateFloatAsState(
+        targetValue = progress.coerceIn(0f, 1f),
+        animationSpec = tween(durationMillis = 380),
+        label = "progress",
+    )
+    LinearProgressIndicator(
+        progress = { animated },
+        modifier = modifier,
+        color = color,
+        trackColor = trackColor,
+    )
+}
+
+@Composable
+fun FeedbackLine(text: String, kind: String, animate: Boolean = true) {
     val color = when (kind) {
         "ok" -> MaterialTheme.colorScheme.primary
         "warn" -> MaterialTheme.colorScheme.tertiary
@@ -321,6 +355,22 @@ fun FeedbackLine(text: String, kind: String) {
         "warn" -> Icons.Filled.Warning
         else -> Icons.Filled.Cancel
     }
+    if (!animate) {
+        if (text.isEmpty()) return
+        FeedbackRow(text, color, icon)
+        return
+    }
+    AnimatedVisibility(
+        visible = text.isNotEmpty(),
+        enter = fadeIn(tween(180)) + expandVertically(),
+        exit = fadeOut(tween(120)) + shrinkVertically(),
+    ) {
+        FeedbackRow(text, color, icon)
+    }
+}
+
+@Composable
+private fun FeedbackRow(text: String, color: Color, icon: ImageVector) {
     Row(verticalAlignment = Alignment.CenterVertically) {
         Icon(icon, null, tint = color, modifier = Modifier.size(20.dp))
         Spacer(Modifier.width(8.dp))
@@ -330,13 +380,18 @@ fun FeedbackLine(text: String, kind: String) {
 
 @Composable
 fun Meaning(text: String, visible: Boolean) {
-    if (!visible || text.isEmpty()) return
+    AnimatedVisibility(
-    Text(
+        visible = visible && text.isNotEmpty(),
-        text,
+        enter = fadeIn(tween(180)),
-        color = MaterialTheme.colorScheme.onSurfaceVariant,
+        exit = fadeOut(tween(120)),
-        style = MaterialTheme.typography.bodySmall,
+    ) {
-        modifier = Modifier.padding(bottom = 8.dp),
+        Text(
-    )
+            text,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+            style = MaterialTheme.typography.bodySmall,
+            modifier = Modifier.padding(bottom = 8.dp),
+        )
+    }
 }
 
 @Composable
@@ -397,11 +452,12 @@ fun SegChip(label: String, selected: Boolean, onClick: () -> Unit) {
 /** Multiple-choice answer with radio state and, after checking, a correct/wrong mark. */
 @Composable
 fun OptionRow(text: String, selected: Boolean, mark: Boolean?, enabled: Boolean = true, onClick: () -> Unit) {
-    val container = when (mark) {
+    val target = when (mark) {
         true -> MaterialTheme.colorScheme.primaryContainer
         false -> MaterialTheme.colorScheme.errorContainer
         null -> if (selected) MaterialTheme.colorScheme.secondaryContainer else MaterialTheme.colorScheme.surfaceContainerHigh
     }
+    val container by animateColorAsState(target, tween(180), label = "option")
     Surface(
         onClick = onClick,
         enabled = enabled,

android/app/src/main/java/org/maturita/maturita/ui/Exercises.kt

@@ -33,7 +33,6 @@ import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
-import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.OutlinedButton
 import androidx.compose.material3.OutlinedTextField
@@ -479,8 +478,8 @@ private fun VocabEx(vm: AppViewModel, title: String, sub: String?, spec: J, onDo
         bottomBar = if (cur != null) ({ ActionBar(vm.tr("check"), fb.first, fb.second) { check() } }) else null,
     ) { inner ->
         Column(Modifier.fillMaxSize().padding(inner).verticalScroll(rememberScrollState()).padding(16.dp)) {
-            LinearProgressIndicator(
+            SmoothProgress(
-                progress = { if (total == 0) 0f else done / total.toFloat() },
+                progress = if (total == 0) 0f else done / total.toFloat(),
                 modifier = Modifier.fillMaxWidth().height(6.dp).clip(CircleShape),
             )
             Spacer(Modifier.height(6.dp))
@@ -1354,7 +1353,7 @@ fun LitQuizScreen(vm: AppViewModel, id: String) {
                 }
             } else {
                 val q = qs[idx]
-                LinearProgressIndicator(progress = { idx / qs.size.toFloat() }, modifier = Modifier.fillMaxWidth().height(6.dp).clip(CircleShape))
+                SmoothProgress(progress = idx / qs.size.toFloat(), modifier = Modifier.fillMaxWidth().height(6.dp).clip(CircleShape))
                 Spacer(Modifier.height(6.dp))
                 Row(Modifier.fillMaxWidth(), horizontalArrangement = Arrangement.SpaceBetween) {
                     Text(vm.fmt("lit_question_fmt", idx + 1, qs.size), style = MaterialTheme.typography.labelMedium, color = MaterialTheme.colorScheme.onSurfaceVariant)

android/app/src/main/java/org/maturita/maturita/ui/Screens.kt

@@ -44,7 +44,6 @@ import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
-import androidx.compose.material3.LinearProgressIndicator
 import androidx.compose.material3.ListItem
 import androidx.compose.material3.ListItemDefaults
 import androidx.compose.material3.MaterialTheme
@@ -116,8 +115,8 @@ fun HomeScreen(vm: AppViewModel) {
                         color = MaterialTheme.colorScheme.onPrimaryContainer.copy(alpha = 0.8f),
                     )
                     Spacer(Modifier.height(16.dp))
-                    LinearProgressIndicator(
+                    SmoothProgress(
-                        progress = { pct },
+                        progress = pct,
                         modifier = Modifier.fillMaxWidth().height(6.dp).clip(CircleShape),
                         color = MaterialTheme.colorScheme.onPrimaryContainer,
                         trackColor = MaterialTheme.colorScheme.onPrimaryContainer.copy(alpha = 0.18f),
@@ -246,7 +245,7 @@ fun StatsScreen(vm: AppViewModel) {
                         Metric(vm.tr("stats_units_label"), vm.fmt("stats_units_fmt", sum.doneUnits, sum.openUnits), Modifier.weight(1f))
                     }
                     Spacer(Modifier.height(16.dp))
-                    LinearProgressIndicator(progress = { pct }, modifier = Modifier.fillMaxWidth().height(6.dp).clip(CircleShape))
+                    SmoothProgress(progress = pct, modifier = Modifier.fillMaxWidth().height(6.dp).clip(CircleShape))
                 }
             }
         }
@@ -262,8 +261,8 @@ fun StatsScreen(vm: AppViewModel) {
                     Column {
                         if (open && part.totalEx > 0) {
                             Spacer(Modifier.height(6.dp))
-                            LinearProgressIndicator(
+                            SmoothProgress(
-                                progress = { part.doneEx / part.totalEx.toFloat() },
+                                progress = part.doneEx / part.totalEx.toFloat(),
                                 modifier = Modifier.fillMaxWidth().height(4.dp).clip(CircleShape),
                             )
                         }
@@ -770,7 +769,6 @@ fun HwYearsScreen(vm: AppViewModel) {
     }
 }
 
-@Composable
 @Composable
 fun DeHomeScreen(vm: AppViewModel) {
     DetailScaffold(vm, vm.tr("Deutsch"), vm.tr("de_home_sub")) { inner ->
@@ -808,6 +806,7 @@ fun EnYearsScreen(vm: AppViewModel) {
     }
 }
 
+@Composable
 fun OnYearsScreen(vm: AppViewModel) {
     DetailScaffold(vm, vm.tr("Občanská nauka"), vm.tr("on_years_sub")) { inner ->
         LazyColumn(contentPadding = PaddingValues(top = inner.calculateTopPadding(), bottom = inner.calculateBottomPadding() + 16.dp)) {

data/style.css

@@ -44,6 +44,7 @@ windowcontrols button:not(:hover) image {
 }
 button {
    background-image: none;
+   transition: background-color 120ms ease, color 120ms ease;
 }
 tooltip {
    background-color: @bg_crust;

ios/Graduately/AppModel.swift

@@ -110,12 +110,12 @@ final class AppModel: ObservableObject {
     }
 
     func setTheme(_ id: ThemeId) {
-        themeId = id
+        withAnimation(Motion.settle) { themeId = id }
         progress.themeId = id
     }
 
     func applyMode(_ m: ColorMode) {
-        mode = m
+        withAnimation(Motion.settle) { mode = m }
         progress.mode = m
     }
 
@@ -285,7 +285,7 @@ final class AppModel: ObservableObject {
 
     func dismissChangelog() {
         progress.seenCommit = AppConfig.commit
-        showChangelog = false
+        withAnimation(Motion.settle) { showChangelog = false }
     }
 }
 

ios/Graduately/UI/Components.swift

@@ -1,5 +1,47 @@
 import SwiftUI
 
+enum Motion {
+    static let press = Animation.easeOut(duration: 0.16)
+    static let settle = Animation.easeOut(duration: 0.28)
+    static let feedback = Animation.spring(response: 0.32, dampingFraction: 0.82)
+}
+
+/// Slight press-in for custom cards and map nodes. System buttons keep their own style.
+struct PressScaleStyle: ButtonStyle {
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
+
+    func makeBody(configuration: Configuration) -> some View {
+        configuration.label
+            .scaleEffect(reduceMotion || !configuration.isPressed ? 1 : 0.98)
+            .animation(reduceMotion ? nil : Motion.press, value: configuration.isPressed)
+    }
+}
+
+private struct SoftAppear: ViewModifier {
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
+    @State private var shown = false
+
+    func body(content: Content) -> some View {
+        content
+            .opacity(reduceMotion || shown ? 1 : 0)
+            .offset(y: reduceMotion || shown ? 0 : 8)
+            .onAppear {
+                guard !reduceMotion else {
+                    shown = true
+                    return
+                }
+                withAnimation(Motion.settle) { shown = true }
+            }
+    }
+}
+
+extension View {
+    /// One short fade-in. Use on a landing surface, not on every pushed screen.
+    func softAppear() -> some View {
+        modifier(SoftAppear())
+    }
+}
+
 #if os(macOS)
 enum MacChrome {
     static let pageInset: CGFloat = 28
@@ -265,21 +307,27 @@ struct FeedbackLine: View {
     let text: String
     let kind: String
     let palette: Palette
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
 
     var body: some View {
-        if !text.isEmpty {
+        Group {
-            Label {
+            if !text.isEmpty {
-                Text(text)
+                Label {
-            } icon: {
+                    Text(text)
-                Image(systemName: kind == "ok" ? "checkmark.circle.fill" : kind == "warn" ? "exclamationmark.triangle.fill" : "xmark.circle.fill")
+                } icon: {
+                    Image(systemName: kind == "ok" ? "checkmark.circle.fill" : kind == "warn" ? "exclamationmark.triangle.fill" : "xmark.circle.fill")
+                }
+                #if os(macOS)
+                .font(.body.weight(.semibold))
+                #else
+                .font(.subheadline.weight(.semibold))
+                #endif
+                .foregroundStyle(kind == "ok" ? palette.success : kind == "warn" ? palette.warning : palette.error)
+                .transition(.opacity.combined(with: .scale(scale: 0.96, anchor: .leading)))
             }
-            #if os(macOS)
-            .font(.body.weight(.semibold))
-            #else
-            .font(.subheadline.weight(.semibold))
-            #endif
-            .foregroundStyle(kind == "ok" ? palette.success : kind == "warn" ? palette.warning : palette.error)
         }
+        .animation(reduceMotion ? nil : Motion.feedback, value: text)
+        .animation(reduceMotion ? nil : Motion.feedback, value: kind)
     }
 }
 
@@ -288,17 +336,23 @@ struct Meaning: View {
     let palette: Palette
     let visible: Bool
 
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
+
     var body: some View {
-        if visible && !text.isEmpty {
+        Group {
-            Text(text)
+            if visible && !text.isEmpty {
-                #if os(macOS)
+                Text(text)
-                .font(.body)
+                    #if os(macOS)
-                #else
+                    .font(.body)
-                .font(.footnote)
+                    #else
-                #endif
+                    .font(.footnote)
-                .foregroundStyle(.secondary)
+                    #endif
-                .padding(.bottom, 4)
+                    .foregroundStyle(.secondary)
+                    .padding(.bottom, 4)
+                    .transition(.opacity)
+            }
         }
+        .animation(reduceMotion ? nil : Motion.settle, value: visible)
     }
 }
 
@@ -307,6 +361,7 @@ struct WordField: View {
     var placeholder: String
     var mark: Bool?
     var palette: Palette?
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
 
     var body: some View {
         HStack(spacing: 8) {
@@ -332,6 +387,7 @@ struct WordField: View {
             RoundedRectangle(cornerRadius: 12, style: .continuous)
                 .stroke(border, lineWidth: mark == nil ? 0.5 : 1.5)
         )
+        .animation(reduceMotion ? nil : Motion.settle, value: mark)
     }
 
     private var border: Color {
@@ -426,6 +482,7 @@ struct OptionChip: View {
     let selected: Bool
     let mark: Bool?
     var action: () -> Void
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
 
     var body: some View {
         Button(action: action) {
@@ -453,6 +510,8 @@ struct OptionChip: View {
         .controlSize(.large)
         #endif
         .padding(.bottom, 4)
+        .animation(reduceMotion ? nil : Motion.settle, value: mark)
+        .animation(reduceMotion ? nil : Motion.press, value: selected)
     }
 
     private var symbol: String {

ios/Graduately/UI/Exercises.swift

@@ -35,10 +35,11 @@ struct ExerciseScaffold<Content: View>: View {
                 if !feedback.isEmpty {
                     FeedbackLine(text: feedback, kind: kind, palette: p)
                         .frame(maxWidth: .infinity, alignment: .leading)
+                        .transition(.opacity.combined(with: .scale(scale: 0.96, anchor: .leading)))
                 }
             }
         }
-        .animation(.default, value: feedback)
+        .animation(Motion.feedback, value: feedback)
     }
 }
 

ios/Graduately/UI/ExercisesMore.swift

@@ -330,7 +330,7 @@ struct WordPicker: View {
                             .frame(maxWidth: .infinity, alignment: .leading)
                             .contentShape(Rectangle())
                     }
-                    .buttonStyle(.plain)
+                    .buttonStyle(PressScaleStyle())
                 }
             }
             .listStyle(.plain)
@@ -1224,9 +1224,10 @@ private struct VlsmEx: View {
                     .padding(.horizontal)
                     .padding(.vertical, 8)
                     .frame(maxWidth: .infinity, alignment: .leading)
+                    .transition(.opacity.combined(with: .scale(scale: 0.96, anchor: .leading)))
             }
         }
-        .animation(.default, value: fb.0)
+        .animation(Motion.feedback, value: fb.0)
     }
 
     private func maybeFinish() {
@@ -1359,7 +1360,7 @@ struct LitQuizScreen: View {
                     }) { EmptyView() }
                 }
             }
-            .animation(.default, value: answered)
+            .animation(Motion.settle, value: answered)
         }
     }
 

ios/Graduately/UI/PathMap.swift

@@ -215,6 +215,7 @@ struct PathMap: View {
         #else
         .frame(minHeight: 420)
         #endif
+        .softAppear()
     }
 
     @ViewBuilder
@@ -321,7 +322,7 @@ struct PathMap: View {
 
         if let dest = node.destination, !node.locked {
             NavigationLink(value: dest) { content }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
         } else {
             content.opacity(node.locked ? 0.55 : 1)
         }

ios/Graduately/UI/Screens.swift

@@ -8,9 +8,9 @@ struct PracticeHome: View {
 
     var body: some View {
         #if os(macOS)
-        macHome
+        macHome.softAppear()
         #else
-        iosHome
+        iosHome.softAppear()
         #endif
     }
 
@@ -46,6 +46,7 @@ struct PracticeHome: View {
                                     .foregroundStyle(.secondary)
                                     .fixedSize(horizontal: false, vertical: true)
                                 ProgressView(value: pct)
+                                    .animation(Motion.settle, value: pct)
                                 Text(vm.fmt("stats_ex_fmt", sum.doneEx, sum.totalEx))
                                     .font(.subheadline)
                                     .foregroundStyle(.secondary)
@@ -91,7 +92,7 @@ struct PracticeHome: View {
                 NavigationLink(value: dest) {
                     subjectTileBody(s, open: true, progress: progress, part: part)
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
             } else {
                 subjectTileBody(s, open: false, progress: 0, part: part)
             }
@@ -108,6 +109,7 @@ struct PracticeHome: View {
             Spacer(minLength: 0)
             if open && part.totalEx > 0 {
                 ProgressView(value: progress)
+                    .animation(Motion.settle, value: progress)
                 Text(vm.fmt("stats_ex_fmt", part.doneEx, part.totalEx))
                     .font(.subheadline)
                     .foregroundStyle(.secondary)
@@ -146,6 +148,7 @@ struct PracticeHome: View {
                             .font(.subheadline)
                             .foregroundStyle(.secondary)
                         ProgressView(value: pct)
+                            .animation(Motion.settle, value: pct)
                         Text(vm.fmt("stats_ex_fmt", sum.doneEx, sum.totalEx))
                             .font(.footnote)
                             .foregroundStyle(.secondary)
@@ -415,7 +418,7 @@ struct SettingsScreen: View {
                         .frame(maxWidth: .infinity, minHeight: 64, alignment: .leading)
                         .softSurface(cornerRadius: 16)
                     }
-                    .buttonStyle(.plain)
+                    .buttonStyle(PressScaleStyle())
                 }
             }
         }
@@ -476,6 +479,7 @@ struct StatsScreen: View {
                             stat(vm.tr("stats_units_label"), vm.fmt("stats_units_fmt", sum.doneUnits, sum.openUnits))
                         }
                         ProgressView(value: pct)
+                            .animation(Motion.settle, value: pct)
                     }
                 }
                 .listRowInsets(EdgeInsets(top: 8, leading: 16, bottom: 8, trailing: 16))
@@ -505,6 +509,7 @@ struct StatsScreen: View {
                             }
                             if open && part.totalEx > 0 {
                                 ProgressView(value: Double(part.doneEx) / Double(part.totalEx))
+                                    .animation(Motion.settle, value: part.doneEx)
                             }
                         }
                     } icon: {
@@ -773,7 +778,7 @@ struct SearchScreen: View {
                             .frame(maxWidth: .infinity, minHeight: 84, alignment: .leading)
                             .softSurface(cornerRadius: 16)
                         }
-                        .buttonStyle(.plain)
+                        .buttonStyle(PressScaleStyle())
                         .disabled(hit.locked)
                     }
                 }
@@ -848,7 +853,7 @@ struct SearchScreen: View {
                     Image(systemName: "xmark.circle.fill")
                         .foregroundStyle(.tertiary)
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
                 .accessibilityLabel("Clear")
             }
         }
@@ -1205,7 +1210,7 @@ struct NetYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: "\(i + 1).")
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("net_years_title"))
         .navigationSubtitle(vm.tr("net_years_sub"))
@@ -1246,7 +1251,7 @@ struct HwYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: "\(i + 1).")
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("Technické vybavení"))
         .navigationSubtitle(vm.tr("hw_years_sub"))
@@ -1288,7 +1293,7 @@ struct DeHomeScreen: View {
             NavigationLink(value: rows[i].3) {
                 MacLinkCard(title: vm.tr(rows[i].1), subtitle: vm.tr(rows[i].2), badge: rows[i].0)
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("Deutsch"))
         .navigationSubtitle(vm.tr("de_home_sub"))
@@ -1324,7 +1329,7 @@ struct EnYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: "\(i + 1).")
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("English"))
         .navigationSubtitle(vm.tr("en_years_sub"))
@@ -1358,7 +1363,7 @@ struct OnYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: "\(i + 1).")
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("Občanská nauka"))
         .navigationSubtitle(vm.tr("on_years_sub"))
@@ -1472,9 +1477,14 @@ struct SlidesScreen: View {
             #else
             if slides.indices.contains(idx) {
                 slidePage(slides[idx])
+                    .id(idx)
+                    .transition(.opacity)
             }
             #endif
         }
+        #if os(macOS)
+        .animation(Motion.settle, value: idx)
+        #endif
         .detailScreen(title, subtitle: subtitle)
         .glassBottomBar {
             VStack(spacing: 10) {
@@ -1485,7 +1495,7 @@ struct SlidesScreen: View {
                             .frame(width: i == idx ? 18 : 6, height: 6)
                     }
                 }
-                .animation(.default, value: idx)
+                .animation(Motion.settle, value: idx)
                 HStack(spacing: 10) {
                     if idx > 0 {
                         Button {
@@ -1668,7 +1678,7 @@ struct LitYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: "\(i + 1).")
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("Literatura"))
         .navigationSubtitle(vm.tr("lit_years_sub"))
@@ -1710,7 +1720,7 @@ struct MatYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: years[i].3)
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("Matematika"))
         .navigationSubtitle(vm.tr("mat_years_sub"))
@@ -1754,7 +1764,7 @@ struct FyzYearsScreen: View {
             NavigationLink(value: years[i].2) {
                 MacLinkCard(title: vm.tr(years[i].0), subtitle: vm.tr(years[i].1), badge: "\(i + 1).")
             }
-            .buttonStyle(.plain)
+            .buttonStyle(PressScaleStyle())
         }
         .navigationTitle(vm.tr("Fyzika"))
         .navigationSubtitle(vm.tr("fyz_years_sub"))
@@ -1790,12 +1800,12 @@ struct SciMapScreen: View {
                 NavigationLink(value: Route.chemMap) {
                     MacLinkCard(title: vm.tr("Chemie"), subtitle: vm.tr("chem_sub"), systemImage: "flask.fill")
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
             } else {
                 NavigationLink(value: Route.bioMap) {
                     MacLinkCard(title: vm.tr("Biologie"), subtitle: vm.tr("bio_sub"), systemImage: "leaf.fill")
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
             }
         }
         .navigationTitle(vm.tr("Základy Přírodopisných věd"))
@@ -1835,17 +1845,17 @@ struct CzechMapScreen: View {
                 NavigationLink(value: Route.mluvnice) {
                     MacLinkCard(title: vm.tr("Mluvnice"), systemImage: "textformat")
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
             case 2:
                 NavigationLink(value: Route.readingList) {
                     MacLinkCard(title: vm.tr("Maturitní četba"), systemImage: "books.vertical")
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
             default:
                 NavigationLink(value: Route.litYears) {
                     MacLinkCard(title: vm.tr("Literatura"), systemImage: "book.closed")
                 }
-                .buttonStyle(.plain)
+                .buttonStyle(PressScaleStyle())
             }
         }
         .navigationTitle(vm.tr("Český jazyk a literatura"))
@@ -1932,7 +1942,7 @@ struct BookListScreen: View {
                         .frame(maxWidth: .infinity, minHeight: 168, alignment: .topLeading)
                         .softSurface(cornerRadius: 18)
                     }
-                    .buttonStyle(.plain)
+                    .buttonStyle(PressScaleStyle())
                 }
             }
             .padding(MacChrome.pageInset)
@@ -2070,7 +2080,7 @@ struct BookScreen: View {
                                             doneLabel: vm.tr("book_done")
                                         )
                                     }
-                                    .buttonStyle(.plain)
+                                    .buttonStyle(PressScaleStyle())
                                 }
                                 if hasPlot {
                                     NavigationLink(value: Route.bookPlot(id)) {
@@ -2082,7 +2092,7 @@ struct BookScreen: View {
                                             doneLabel: vm.tr("book_done")
                                         )
                                     }
-                                    .buttonStyle(.plain)
+                                    .buttonStyle(PressScaleStyle())
                                 }
                             }
                             #else
@@ -2096,7 +2106,7 @@ struct BookScreen: View {
                                         doneLabel: vm.tr("book_done")
                                     )
                                 }
-                                .buttonStyle(.plain)
+                                .buttonStyle(PressScaleStyle())
                             }
                             if hasPlot {
                                 NavigationLink(value: Route.bookPlot(id)) {
@@ -2108,7 +2118,7 @@ struct BookScreen: View {
                                         doneLabel: vm.tr("book_done")
                                     )
                                 }
-                                .buttonStyle(.plain)
+                                .buttonStyle(PressScaleStyle())
                             }
                             #endif
                         }

macos/Graduately/GraduatelyApp.swift

@@ -58,8 +58,10 @@ struct MacRoot: View {
                 if showsUpdateAccessory {
                     UpdateBanner(vm: vm)
                         .padding(16)
+                        .transition(.move(edge: .top).combined(with: .opacity))
                 }
             }
+            .animation(Motion.settle, value: showsUpdateAccessory)
             .onAppear { vm.checkUpdate(false) }
             .frame(minWidth: 980, minHeight: 640)
     }

src/cetba.c

@@ -1282,7 +1282,7 @@ static void on_stub_quiz_clicked(GtkButton *button, gpointer user_data) {
     (void)user_data;
     cetba_prepare_stub_quiz();
     if (main_stack)
-        gtk_stack_set_visible_child_name(main_stack, "cetbastubquiz");
+        show_page("cetbastubquiz", 1);
 }
 
 static void on_stub_plot_clicked(GtkButton *button, gpointer user_data) {
@@ -1290,7 +1290,7 @@ static void on_stub_plot_clicked(GtkButton *button, gpointer user_data) {
     (void)user_data;
     cetba_prepare_stub_plot();
     if (main_stack)
-        gtk_stack_set_visible_child_name(main_stack, "cetbastubdej");
+        show_page("cetbastubdej", 1);
 }
 
 static GtkWidget *book_rail;
@@ -1467,7 +1467,7 @@ static void on_book_node_clicked(GtkButton *button, gpointer user_data) {
         rebuild_stub_about(idx);
     }
     if (main_stack && target)
-        gtk_stack_set_visible_child_name(main_stack, target);
+        show_page(target, 1);
 }
 
 static GtkWidget *book_make_node(int i) {
@@ -1810,7 +1810,7 @@ void cetba_open_stub(int idx) {
         gtk_label_set_text(GTK_LABEL(stub_title_lbl), book_defs[idx].title);
     rebuild_stub_about(idx);
     if (main_stack)
-        gtk_stack_set_visible_child_name(main_stack, "cetbastub");
+        show_page("cetbastub", 1);
 }
 
 void cetba_register_search(void) {

src/english.c

@@ -416,7 +416,7 @@ static void en_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static void en_add_node(EngMap *m, GtkFixed *fixed, int index) {
@@ -699,7 +699,7 @@ static void en_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         skill_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/fyzika.c

@@ -220,7 +220,7 @@ static void fyz_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static GtkWidget *fyz_lesson_button(FyzTrack *T, int index) {
@@ -460,7 +460,7 @@ static void fyz_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         fyz_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/graduately.h

@@ -1199,6 +1199,7 @@ void draw_bulb_icon(GtkDrawingArea *area, cairo_t *cr,
 void net_lesson_notes_ensure(NetLesson *L);
 void net_rescale_lesson_notes(NetLesson *L, int body, int head, int kick);
 GtkWidget *make_back_button(const char *target);
+void show_page(const char *name, int motion);
 void on_nav_clicked(GtkButton *button, gpointer user_data);
 int unit_done_count(const UnitCtx *u);
 void progress_for_units(int first, int n, ProgressSum *out);

src/hw.c

@@ -661,7 +661,7 @@ void hw_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         hw_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/literatura.c

@@ -377,7 +377,7 @@ static void lit_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static void lit_add_node(LitTrack *T, GtkFixed *fixed, int index) {
@@ -634,7 +634,7 @@ static void lit_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         lit_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/main.c

@@ -736,10 +736,13 @@ void activate(GtkApplication *app, gpointer user_data) {
         const char *size = g_getenv("MATURITA_SIZE");
         int w, h;
 
+        gtk_stack_set_transition_type(main_stack, GTK_STACK_TRANSITION_TYPE_NONE);
         if (start && *start)
             gtk_stack_set_visible_child_name(main_stack, start);
         else
             gtk_stack_set_visible_child_name(main_stack, "welcome");
+        gtk_stack_set_transition_type(main_stack, GTK_STACK_TRANSITION_TYPE_CROSSFADE);
+        gtk_stack_set_transition_duration(main_stack, 180);
         if (size && sscanf(size, "%dx%d", &w, &h) == 2)
             gtk_window_set_default_size(window, w, h);
     }

src/matematika.c

@@ -226,7 +226,7 @@ static void math_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static GtkWidget *math_lesson_button(MathTrack *T, int index) {
@@ -469,7 +469,7 @@ static void math_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         math_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/navigation.c

@@ -4,17 +4,40 @@
 /* Navigation                                                         */
 /* ------------------------------------------------------------------ */
 
+/* motion: -1 slides back, 0 crossfades, 1 slides forward. */
+void show_page(const char *name, int motion) {
+    GtkStackTransitionType type = GTK_STACK_TRANSITION_TYPE_CROSSFADE;
+    guint ms = 180;
+
+    if (!main_stack || !name || !name[0])
+        return;
+    if (!gtk_stack_get_child_by_name(main_stack, name))
+        return;
+    if (motion > 0) {
+        type = GTK_STACK_TRANSITION_TYPE_SLIDE_LEFT;
+        ms = 200;
+    } else if (motion < 0) {
+        type = GTK_STACK_TRANSITION_TYPE_SLIDE_RIGHT;
+        ms = 200;
+    }
+    gtk_stack_set_transition_type(main_stack, type);
+    gtk_stack_set_transition_duration(main_stack, ms);
+    gtk_stack_set_visible_child_name(main_stack, name);
+}
+
 void on_nav_clicked(GtkButton *button, gpointer user_data) {
     const char *target = g_object_get_data(G_OBJECT(button), "target");
+    int back = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(button), "nav-back"));
+
     (void)user_data;
     if (target)
-        gtk_stack_set_visible_child_name(main_stack, target);
+        show_page(target, back ? -1 : 1);
 }
 
 void on_continue_clicked(GtkButton *button, gpointer user_data) {
     (void)button;
     (void)user_data;
-    gtk_stack_set_visible_child_name(main_stack, "subjects");
+    show_page("subjects", 1);
 }
 
 GtkWidget *make_back_button(const char *target) {
@@ -31,6 +54,7 @@ GtkWidget *make_back_button(const char *target) {
     g_signal_connect_swapped(back, "state-flags-changed",
                              G_CALLBACK(gtk_widget_queue_draw), icon);
     g_object_set_data_full(G_OBJECT(back), "target", g_strdup(target), g_free);
+    g_object_set_data(G_OBJECT(back), "nav-back", GINT_TO_POINTER(1));
     g_signal_connect(back, "clicked", G_CALLBACK(on_nav_clicked), NULL);
     return back;
 }

src/net.c

@@ -195,7 +195,7 @@ void net_open_unit(GtkButton *button, gpointer data) {
         return;
     L->idx = 0;
     net_slide_apply(L);
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 void net_slide_prev(GtkButton *button, gpointer data) {
@@ -220,7 +220,7 @@ void net_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         net_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/obcanka.c

@@ -266,7 +266,7 @@ static void on_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static void on_add_node(GtkFixed *fixed, int index) {
@@ -660,7 +660,7 @@ static void on_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         on_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/obcanka2.c

@@ -278,7 +278,7 @@ static void on2_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static void on2_add_node(GtkFixed *fixed, int index) {
@@ -566,7 +566,7 @@ static void on2_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         on2_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/obcanka3.c

@@ -277,7 +277,7 @@ static void on3_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static void on3_add_node(GtkFixed *fixed, int index) {
@@ -565,7 +565,7 @@ static void on3_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         on3_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/obcanka4.c

@@ -278,7 +278,7 @@ static void on4_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static void on4_add_node(GtkFixed *fixed, int index) {
@@ -566,7 +566,7 @@ static void on4_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         on4_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/priroda.c

@@ -191,7 +191,7 @@ static void sci_open_unit(GtkButton *button, gpointer data) {
         if (L->next_btn)
             gtk_button_set_label(GTK_BUTTON(L->next_btn), tr("net_slide_next"));
     }
-    gtk_stack_set_visible_child_name(main_stack, L->unit_page);
+    show_page(L->unit_page, 1);
 }
 
 static GtkWidget *sci_lesson_button(SciTrack *T, int index) {
@@ -460,7 +460,7 @@ static void sci_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         sci_slide_apply(L);
     } else {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/quizyear.c

@@ -205,7 +205,7 @@ static void qy_slide_next(GtkButton *button, gpointer data) {
         L->idx++;
         skill_slide_apply(L);
     } else if (L->ex_page) {
-        gtk_stack_set_visible_child_name(main_stack, L->ex_page);
+        show_page(L->ex_page, 1);
     }
 }
 

src/search.c

@@ -16,6 +16,8 @@ typedef struct {
 } SearchItem;
 
 static GtkWidget *search_layer;
+static GtkWidget *search_reveal;
+static gboolean search_want_open;
 static GtkWidget *search_entry;
 static GtkWidget *search_list;
 static GtkWidget *search_empty;
@@ -472,7 +474,7 @@ static void search_go(const char *target) {
     if (!gtk_stack_get_child_by_name(main_stack, target))
         return;
     search_close();
-    gtk_stack_set_visible_child_name(main_stack, target);
+    show_page(target, 1);
 }
 
 static void on_row_activated(GtkListBox *box, GtkListBoxRow *row,
@@ -641,19 +643,40 @@ static void on_scrim_clicked(GtkGestureClick *g, gint n_press, gdouble x,
     search_close();
 }
 
+static void on_search_revealed(GObject *obj, GParamSpec *pspec, gpointer data) {
+    GtkRevealer *reveal = GTK_REVEALER(obj);
+
+    (void)pspec;
+    (void)data;
+    if (!gtk_revealer_get_reveal_child(reveal) &&
+        !gtk_revealer_get_child_revealed(reveal))
+        gtk_widget_set_visible(GTK_WIDGET(reveal), FALSE);
+}
+
 gboolean search_is_open(void) {
-    return search_layer && gtk_widget_get_visible(search_layer);
+    return search_want_open;
 }
 
 void search_close(void) {
-    if (search_layer)
+    search_want_open = FALSE;
-        gtk_widget_set_visible(search_layer, FALSE);
+    if (search_reveal)
+        gtk_revealer_set_reveal_child(GTK_REVEALER(search_reveal), FALSE);
+}
+
+static gboolean reveal_search(gpointer data) {
+    (void)data;
+    if (search_want_open && search_reveal)
+        gtk_revealer_set_reveal_child(GTK_REVEALER(search_reveal), TRUE);
+    return G_SOURCE_REMOVE;
 }
 
 void search_open(void) {
-    if (!search_layer)
+    if (!search_reveal)
         return;
-    gtk_widget_set_visible(search_layer, TRUE);
+    search_want_open = TRUE;
+    gtk_widget_set_visible(search_reveal, TRUE);
+    /* Wait a frame so the overlay is mapped and the fade actually runs. */
+    g_idle_add(reveal_search, NULL);
     if (search_entry) {
         gtk_editable_set_text(GTK_EDITABLE(search_entry), "");
         gtk_widget_grab_focus(search_entry);
@@ -711,7 +734,6 @@ void search_attach(GtkOverlay *overlay) {
     gtk_widget_add_css_class(search_layer, "search-layer");
     gtk_widget_set_hexpand(search_layer, TRUE);
     gtk_widget_set_vexpand(search_layer, TRUE);
-    gtk_widget_set_visible(search_layer, FALSE);
 
     scrim = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
     gtk_widget_add_css_class(scrim, "search-scrim");
@@ -763,5 +785,16 @@ void search_attach(GtkOverlay *overlay) {
     g_signal_connect(search_list, "row-activated",
                      G_CALLBACK(on_row_activated), NULL);
 
-    gtk_overlay_add_overlay(overlay, search_layer);
+    search_reveal = gtk_revealer_new();
+    gtk_revealer_set_transition_type(GTK_REVEALER(search_reveal),
+                                     GTK_REVEALER_TRANSITION_TYPE_CROSSFADE);
+    gtk_revealer_set_transition_duration(GTK_REVEALER(search_reveal), 160);
+    gtk_revealer_set_reveal_child(GTK_REVEALER(search_reveal), FALSE);
+    gtk_widget_set_hexpand(search_reveal, TRUE);
+    gtk_widget_set_vexpand(search_reveal, TRUE);
+    gtk_widget_set_visible(search_reveal, FALSE);
+    gtk_revealer_set_child(GTK_REVEALER(search_reveal), search_layer);
+    g_signal_connect(search_reveal, "notify::child-revealed",
+                     G_CALLBACK(on_search_revealed), NULL);
+    gtk_overlay_add_overlay(overlay, search_reveal);
 }

src/stats.c

@@ -212,7 +212,7 @@ void on_stats_back_clicked(GtkButton *button, gpointer user_data) {
     (void)user_data;
     if (!target || !target[0])
         target = "subjects";
-    gtk_stack_set_visible_child_name(main_stack, target);
+    show_page(target, -1);
 }
 
 void on_stats_clicked(GtkButton *button, gpointer user_data) {
@@ -227,7 +227,7 @@ void on_stats_clicked(GtkButton *button, gpointer user_data) {
         stats_return_page = g_strdup(cur);
     }
     refresh_stats_ui();
-    gtk_stack_set_visible_child_name(main_stack, "stats");
+    show_page("stats", 0);
 }
 
 GtkWidget *stats_metric_card(const char *label_key, GtkWidget **value_out) {

src/update.c

@@ -413,7 +413,7 @@ static void update_refresh_ui(void) {
         gtk_widget_set_visible(up.progress, up.state == UPDATE_DOWNLOADING);
 
     if (up.banner) {
-        gtk_widget_set_visible(up.banner, banner);
+        gtk_revealer_set_reveal_child(GTK_REVEALER(up.banner), banner);
         if (banner) {
             gtk_label_set_text(GTK_LABEL(up.banner_label), status);
             gtk_button_set_label(GTK_BUTTON(up.banner_action), tr(action));
@@ -1019,7 +1019,7 @@ static void on_update_dismiss(GtkButton *btn, gpointer data) {
     (void)btn;
     (void)data;
     if (up.banner)
-        gtk_widget_set_visible(up.banner, FALSE);
+        gtk_revealer_set_reveal_child(GTK_REVEALER(up.banner), FALSE);
 }
 
 /* Strip shown above the page stack once an update is waiting. */
@@ -1030,7 +1030,6 @@ GtkWidget *build_update_banner(void) {
     GtkWidget *later = gtk_button_new();
 
     gtk_widget_add_css_class(bar, "update-banner");
-    gtk_widget_set_visible(bar, FALSE);
 
     gtk_widget_set_hexpand(label, TRUE);
     gtk_label_set_xalign(GTK_LABEL(label), 0.0);
@@ -1048,10 +1047,19 @@ GtkWidget *build_update_banner(void) {
     g_signal_connect(later, "clicked", G_CALLBACK(on_update_dismiss), NULL);
     gtk_box_append(GTK_BOX(bar), later);
 
-    up.banner = bar;
     up.banner_label = label;
     up.banner_action = action;
-    return bar;
+    {
+        GtkWidget *reveal = gtk_revealer_new();
+
+        gtk_revealer_set_transition_type(GTK_REVEALER(reveal),
+                                         GTK_REVEALER_TRANSITION_TYPE_SLIDE_DOWN);
+        gtk_revealer_set_transition_duration(GTK_REVEALER(reveal), 180);
+        gtk_revealer_set_reveal_child(GTK_REVEALER(reveal), FALSE);
+        gtk_revealer_set_child(GTK_REVEALER(reveal), bar);
+        up.banner = reveal;
+        return reveal;
+    }
 }
 
 /* "Updates" section of the settings popover. */