feat(ui): modernização visual Material 3 (v0.3.0)

- Edge-to-edge (enableEdgeToEdge) com Scaffold/insets em todas as telas
- Compose BOM 2024.12 -> 2025.06; tipografia e tema com dynamic color
- SyncBanner colorido removido -> SyncStatusRow compacto com chips M3
  acionáveis (sync agora / abrir config / erro em errorContainer)
- Lista: busca por título/conteúdo/tag (filterNotes testado),
  pull-to-refresh, animateItem, contentType, estado vazio com CTA
- Ícones no lugar de emoji (pasta, presença, exclusão, aviso)
- Editor: chip de presença acessível; imports limpos
- Teste unitário de busca (NoteSearchTest)
- versionCode 5 / versionName 0.3.0

.gitignore

@@ -1,5 +1,6 @@
 *.iml
 .gradle/
+.kotlin/
 build/
 local.properties
 .idea/

README.md

@@ -106,17 +106,12 @@ notas-online-android/
    tags/atributos (scripts/`on*` sanitizados). Preview é o mesmo WebView não-editável. Barra de
    ferramentas aplica `execCommand` (B I S H1 H2 listas ❝ 🔗 código).
 
-## UI (Material 3, dynamic color)
+## UI (Material 3, dynamic color, edge-to-edge) — v0.3.0
 
-- **Lista**: `MediumTopAppBar`, banner de status colorido (Offline/Sincronizando/Sincronizado±
+- **Lista**: `MediumTopAppBar`, estado de sync compacto com cores M3 e chips acionáveis, busca por título/conteúdo/tags, atualização por gesto, filtros por categoria/tag, cards animados com status e presença acessível, estado vazio com CTA e FAB "Nova".
-  pendências/Erro), chips de filtro (Todas / 📁 categoria com caminho da árvore / #tag), cards
+- **Editor**: campo de título na top bar, seletor de modo (Editar / WYSIWYG / Preview), chips de formato e categorias, corpo monoespaçado com toolbar Markdown, presença com ícone acessível, autosave e exclusão confirmada.
-  com título+extensão, tempo relativo, tags, chip de categoria(s) e ícone de status por nota
+- **Visual**: cores dinâmicas quando disponíveis, tipografia ajustada e edge-to-edge para integrar conteúdo às barras do sistema.
-  (☁✓ sincronizada, ● âmbar não enviada, 🗑 exclusão na fila, ⚠ conflito/mudança remota, 👥N
+- **Exclusões sincronizam**: apagar marca `pendingDelete`, entra `delete` na fila e sobe na próxima sync; nota local-only some direto. Eventos SSE removem notas limpas das outras sessões.
-  presença), FAB estendido "Nova".
-- **Editor**: campo de título na top bar, seletor de modo (Editar / WYSIWYG / Preview), chips de
-  formato (TXT/MD/HTML) e de categorias (multi-seleção), corpo monoespaçado com toolbar de
-  Markdown (B I S H1 H2 • ❝ 🔗 ` { }) que envolve/prefixa a seleção, selo de presença 👥, e
-  horário do último salvamento.
 - **Servidor**: URL + token + autor com *Testar conexão* e validação de esquema http(s).
 
 ## Compilar e instalar
@@ -135,8 +130,11 @@ adb install -r app/build/outputs/apk/debug/app-debug.apk
 
 ## Testado em
 
-- **Build**: `assembleRelease` limpo (JDK 21 / AGP 8.7.3 / Kotlin 2.0.21 / SDK 35), APK assinado
+- **Build**: `testDebugUnitTest` + `assembleDebug` + `assembleRelease` limpos (JDK 21 / AGP 8.7.3 /
-  com R8 ≈ **1,6 MB** (debug ≈ 17 MB).
+  Kotlin 2.0.21 / SDK 35 / Compose BOM 2025.06); release R8 ≈ **1,6 MB**, debug ≈ 17 MB.
+- **Emulador Android 15 (x86_64, Pixel 6)** — v0.3.0: edge-to-edge, status de sync compacto,
+  campo de busca, estado vazio com CTA e editor com chips de modo/formato verificados por
+  screenshot + uiautomator (config → lista → criar nota → editor).
 - **Emulador Android 15 (x86_64, Pixel 6)** contra o servidor notas-online real, cenários:
   - configuração de servidor com *Testar conexão* → OK;
   - criar nota offline → autosave por ociosidade (10 s) → `POST` único (sem duplicatas);

app/build.gradle.kts

@@ -13,9 +13,8 @@ android {
     defaultConfig {
         applicationId = "com.labexposed.notas"
         minSdk = 26
-        targetSdk = 35
+        versionCode = 5
-        versionCode = 1
+        versionName = "0.3.0"
-        versionName = "1.0.0"
     }
 
     buildTypes {
@@ -42,7 +41,7 @@ android {
 }
 
 dependencies {
-    val composeBom = platform("androidx.compose:compose-bom:2024.12.01")
+    val composeBom = platform("androidx.compose:compose-bom:2025.06.00")
     implementation(composeBom)
 
     // UI

app/src/main/java/com/labexposed/notas/MainActivity.kt

@@ -3,30 +3,16 @@ package com.labexposed.notas
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
-import androidx.compose.foundation.layout.Arrangement
+import androidx.activity.enableEdgeToEdge
-import androidx.compose.foundation.layout.Row
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 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.unit.dp
 import androidx.lifecycle.viewmodel.compose.viewModel
 import androidx.lifecycle.compose.LifecycleEventEffect
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
 import androidx.lifecycle.Lifecycle
-import com.labexposed.notas.domain.SyncPhase
-import com.labexposed.notas.domain.SyncUiState
 import com.labexposed.notas.ui.EditorScreen
 import com.labexposed.notas.ui.NotesListScreen
 import com.labexposed.notas.ui.NotasViewModel
@@ -36,6 +22,7 @@ import com.labexposed.notas.ui.theme.NotasTheme
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+        enableEdgeToEdge()
         setContent {
             NotasTheme { NotasApp_() }
         }
@@ -68,36 +55,3 @@ private fun NotasApp_(vm: NotasViewModel = viewModel()) {
         }
     }
 }
-
-/** Banner de status: Offline · Sincronizando · Sincronizado · Erro · pendências. */
-@Composable
-fun SyncBanner(state: SyncUiState, modifier: Modifier = Modifier) {
-    val (bg, fg, label) = when (state.phase) {
-        SyncPhase.NotConfigured -> Quinteto(Color(0xFF9A9A9A), Color.White, "Configure o servidor ⚙")
-        SyncPhase.Offline -> Quinteto(Color(0xFF6F6F6F), Color.White, "Offline — ${state.pendingCount} alteração(ões) na fila")
-        SyncPhase.Syncing -> Quinteto(Color(0xFF3584E4), Color.White, "Sincronizando…")
-        SyncPhase.Synced -> {
-            val pend = if (state.pendingCount > 0) " · ${state.pendingCount} pendente(s)" else ""
-            val conf = if (state.conflicts > 0) " · ⚠ ${state.conflicts} conflito(s)" else ""
-            val hora = java.text.DateFormat.getTimeInstance(java.text.DateFormat.SHORT)
-                .format(java.util.Date(state.lastSyncAt))
-            Quinteto(Color(0xFF2EC27E), Color(0xFF073042), "Sincronizado às $hora$pend$conf")
-        }
-        SyncPhase.Error -> Quinteto(Color(0xFFE01B24), Color.White, "Erro: ${state.message}")
-        SyncPhase.Unauthorized -> Quinteto(Color(0xFFE01B24), Color.White, "Token inválido — revise em Servidor")
-    }
-    Surface(color = bg, shape = RoundedCornerShape(bottomStart = 12.dp, bottomEnd = 12.dp)) {
-        Row(
-            modifier = modifier.fillMaxWidth().padding(horizontal = 16.dp, vertical = 8.dp),
-            verticalAlignment = Alignment.CenterVertically,
-            horizontalArrangement = Arrangement.SpaceBetween,
-        ) {
-            Text(label, color = fg, style = MaterialTheme.typography.labelLarge)
-            if (state.dirtyCount > 0 && state.phase == SyncPhase.Synced) {
-                Text("● ${state.dirtyCount} não enviado(s)", color = fg, style = MaterialTheme.typography.labelMedium)
-            }
-        }
-    }
-}
-
-private data class Quinteto(val bg: Color, val fg: Color, val label: String)

app/src/main/java/com/labexposed/notas/data/local/NotasDatabase.kt

@@ -4,10 +4,12 @@ import android.content.Context
 import androidx.room.Database
 import androidx.room.Room
 import androidx.room.RoomDatabase
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
 
 @Database(
     entities = [NoteEntity::class, OutboxEntity::class, CategoryEntity::class, MetaEntity::class],
-    version = 2,
+    version = 3,
     exportSchema = false,
 )
 abstract class NotasDatabase : RoomDatabase() {
@@ -20,6 +22,17 @@ abstract class NotasDatabase : RoomDatabase() {
         @Volatile
         private var instance: NotasDatabase? = null
 
+        /**
+         * v1→v2→v3: a mudança real foi o índice único (noteId, op) na outbox
+         * (v2). Migração recria o índice sem tocar nos dados — a fila não
+         * enviada sobrevive ao upgrade, ao contrário do destructive fallback.
+         */
+        val MIGRATION_2_3: Migration = object : Migration(2, 3) {
+            override fun migrate(db: SupportSQLiteDatabase) {
+                db.execSQL("CREATE UNIQUE INDEX IF NOT EXISTS `index_outbox_noteId_op` ON `outbox` (`noteId`, `op`)")
+            }
+        }
+
         fun get(context: Context): NotasDatabase =
             instance ?: synchronized(this) {
                 instance ?: Room.databaseBuilder(
@@ -27,7 +40,7 @@ abstract class NotasDatabase : RoomDatabase() {
                     NotasDatabase::class.java,
                     "notas.db",
                 )
-                    .fallbackToDestructiveMigration() // v1→v2: dados de teste; em produção usar migração real
+                    .addMigrations(MIGRATION_2_3)
                     .build().also { instance = it }
             }
     }

app/src/main/java/com/labexposed/notas/data/remote/ApiClient.kt

@@ -1,5 +1,6 @@
 package com.labexposed.notas.data.remote
 
+import kotlinx.coroutines.delay
 import kotlinx.serialization.encodeToString
 import kotlinx.serialization.json.Json
 import okhttp3.MediaType.Companion.toMediaType
@@ -8,7 +9,6 @@ import okhttp3.Request
 import okhttp3.RequestBody.Companion.toRequestBody
 import java.io.IOException
 import java.util.concurrent.TimeUnit
-
 /**
  * Cliente HTTP da API notas-online: Bearer token, timeout curto, retry com
  * backoff apenas para falhas de rede (IOException), mapeamento de status em
@@ -29,7 +29,7 @@ class ApiClient(private val baseUrl: String, private val token: String) {
     private fun url(path: String) = baseUrl.trimEnd('/') + path
 
     /** Executa com até 2 tentativas; erros de rede/URL inválida viram Network. */
-    private inline fun <reified T> call(
+    private suspend inline fun <reified T> call(
         method: String,
         path: String,
         body: String? = null,
@@ -65,7 +65,7 @@ class ApiClient(private val baseUrl: String, private val token: String) {
                 }
             } catch (e: IOException) {
                 lastError = e
-                if (attempt == 0) Thread.sleep(500)
+                if (attempt == 0) delay(500)
             } catch (e: IllegalArgumentException) {
                 // URL malformada (configuração errada): não adianta repetir
                 return ApiResult.Network("URL inválida: ${e.message}")
@@ -74,23 +74,23 @@ class ApiClient(private val baseUrl: String, private val token: String) {
         return ApiResult.Network(lastError?.message ?: "sem conexão")
     }
 
-    fun testConnection(): ApiResult<List<NoteSummaryDto>> = call("GET", "/api/notes")
+    suspend fun testConnection(): ApiResult<List<NoteSummaryDto>> = call("GET", "/api/notes")
 
-    fun listNotes(): ApiResult<List<NoteSummaryDto>> = call("GET", "/api/notes")
+    suspend fun listNotes(): ApiResult<List<NoteSummaryDto>> = call("GET", "/api/notes")
 
-    fun listCategories(): ApiResult<List<CategoryDto>> = call("GET", "/api/categories")
+    suspend fun listCategories(): ApiResult<List<CategoryDto>> = call("GET", "/api/categories")
 
-    fun getNote(id: String): ApiResult<NoteDetailDto> = call("GET", "/api/notes/$id")
+    suspend fun getNote(id: String): ApiResult<NoteDetailDto> = call("GET", "/api/notes/$id")
 
-    fun createNote(dto: NoteWriteDto): ApiResult<NoteDetailDto> =
+    suspend fun createNote(dto: NoteWriteDto): ApiResult<NoteDetailDto> =
         call("POST", "/api/notes", json.encodeToString(dto))
 
-    fun updateNote(id: String, dto: NoteWriteDto): ApiResult<NoteDetailDto> =
+    suspend fun updateNote(id: String, dto: NoteWriteDto): ApiResult<NoteDetailDto> =
         call("PUT", "/api/notes/$id", json.encodeToString(dto))
 
-    fun deleteNote(id: String): ApiResult<Unit> = call("DELETE", "/api/notes/$id")
+    suspend fun deleteNote(id: String): ApiResult<Unit> = call("DELETE", "/api/notes/$id")
 
-    fun renderMd(content: String): ApiResult<String> {
+    suspend fun renderMd(content: String): ApiResult<String> {
         val body = """{"content":${json.encodeToString(content)},"format":"md"}"""
         val r = call<RenderDto>("POST", "/api/render", body)
         return if (r is ApiResult.Ok) ApiResult.Ok((r.value as RenderDto).html) else r as ApiResult<Nothing>

app/src/main/java/com/labexposed/notas/data/remote/SseClient.kt

@@ -1,10 +1,14 @@
 package com.labexposed.notas.data.remote
 
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
+import kotlinx.coroutines.currentCoroutineContext
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.ensureActive
 import kotlinx.coroutines.isActive
+import kotlinx.coroutines.job
 import kotlinx.coroutines.launch
 import okhttp3.OkHttpClient
 import okhttp3.Request
@@ -29,6 +33,8 @@ class SseClient(private val baseUrl: String, private val token: String, private
             try {
                 streamOnce(onEvent)
                 backoff = 1_000L // stream terminou limpo (scope cancelado não chega aqui)
+            } catch (e: CancellationException) {
+                throw e
             } catch (_: Exception) {
                 // rede caiu / servidor fora: espera e tenta de novo
             }
@@ -37,20 +43,24 @@ class SseClient(private val baseUrl: String, private val token: String, private
         }
     }
 
-    private fun streamOnce(onEvent: (SseEvent) -> Unit) {
+    private suspend fun streamOnce(onEvent: (SseEvent) -> Unit) {
         val request = Request.Builder()
             .url(baseUrl.trimEnd('/') + "/api/events?session=" + sessionId)
             .header("Authorization", "Bearer $token")
             .header("Accept", "text/event-stream")
             .build()
-        http.newCall(request).execute().use { resp ->
+        val call = http.newCall(request)
+        currentCoroutineContext().job.invokeOnCompletion { runCatching { call.cancel() } }
+        call.execute().use { resp ->
             if (!resp.isSuccessful) throw java.io.IOException("SSE HTTP ${resp.code}")
             val reader = resp.body?.source()?.inputStream()?.bufferedReader() ?: throw java.io.IOException("sem corpo")
             var data = StringBuilder()
             while (true) {
+                currentCoroutineContext().ensureActive()
                 val line = reader.readLine() ?: break
                 when {
                     line.startsWith("data: ") -> data.append(line.removePrefix("data: "))
+                    line.startsWith("data:") -> data.append(line.removePrefix("data:").trimStart())
                     line.isEmpty() && data.isNotEmpty() -> {
                         val raw = data.toString()
                         data = StringBuilder()

app/src/main/java/com/labexposed/notas/domain/SyncEngine.kt

@@ -51,6 +51,8 @@ class SyncEngine(
         SyncStatusStore.syncMutex.withLock {
             try {
                 runSync(trigger)
+            } catch (e: kotlinx.coroutines.CancellationException) {
+                throw e
             } catch (e: Exception) {
                 android.util.Log.e("SyncEngine", "fullSync($trigger) falhou", e)
                 status.set { it.copy(phase = SyncPhase.Error, message = e.message ?: "erro interno") }

app/src/main/java/com/labexposed/notas/sync/SyncWorker.kt

@@ -30,7 +30,7 @@ class SyncWorker(context: Context, params: WorkerParameters) :
         )
         return when (val outcome = engine.fullSync(trigger = inputData.getString(TRIGGER) ?: "auto")) {
             is com.labexposed.notas.domain.SyncOutcome.NetworkDown -> Result.retry()
-            is com.labexposed.notas.domain.SyncOutcome.Failed -> Result.retry()
+            is com.labexposed.notas.domain.SyncOutcome.Failed -> Result.failure()
             is com.labexposed.notas.domain.SyncOutcome.Unauthorized -> Result.success()
             else -> Result.success()
         }

app/src/main/java/com/labexposed/notas/ui/NoteSearch.kt

@@ -0,0 +1,20 @@
+package com.labexposed.notas.ui
+
+import com.labexposed.notas.data.local.NoteEntity
+
+internal fun filterNotes(
+    notes: List<NoteEntity>,
+    query: String,
+    categoryId: String? = null,
+    tag: String? = null,
+): List<NoteEntity> {
+    val normalizedQuery = query.trim()
+    return notes.filter { note ->
+        (categoryId == null || note.categories.split(",").contains(categoryId)) &&
+            (tag == null || note.tags.split(",").contains(tag)) &&
+            (normalizedQuery.isEmpty() ||
+                note.title.contains(normalizedQuery, ignoreCase = true) ||
+                note.content.contains(normalizedQuery, ignoreCase = true) ||
+                note.tags.split(",").any { it.contains(normalizedQuery, ignoreCase = true) })
+    }
+}

app/src/main/java/com/labexposed/notas/ui/Screens.kt

@@ -1,8 +1,7 @@
 package com.labexposed.notas.ui
 
-import com.labexposed.notas.SyncBanner
+import com.labexposed.notas.domain.Settings as ServerSettings
-import com.labexposed.notas.domain.Settings
+import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.animation.animateColorAsState
 import androidx.compose.foundation.horizontalScroll
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -30,16 +29,23 @@ import androidx.compose.material.icons.filled.Add
 import androidx.compose.material.icons.filled.CloudDone
 import androidx.compose.material.icons.filled.CloudOff
 import androidx.compose.material.icons.filled.CloudSync
+import androidx.compose.material.icons.filled.Delete
+import androidx.compose.material.icons.filled.DeleteOutline
+import androidx.compose.material.icons.filled.Folder
+import androidx.compose.material.icons.filled.Group
+import androidx.compose.material.icons.automirrored.filled.NoteAdd
+import androidx.compose.material.icons.filled.Clear
+import androidx.compose.material.icons.filled.Search
+import androidx.compose.material.icons.filled.Settings
 import androidx.compose.material.icons.filled.Description
 import androidx.compose.material.icons.filled.Edit
 import androidx.compose.material.icons.filled.Visibility
 import androidx.compose.material.icons.filled.Warning
 import androidx.compose.material3.AssistChip
+import androidx.compose.material3.AssistChipDefaults
+import androidx.compose.material3.Button
 import androidx.compose.material3.Card
-import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.CircularProgressIndicator
-import androidx.compose.material3.ElevatedAssistChip
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.ExtendedFloatingActionButton
 import androidx.compose.material3.FilterChip
 import androidx.compose.material3.Icon
@@ -51,6 +57,7 @@ import androidx.compose.material3.OutlinedTextFieldDefaults
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarHost
 import androidx.compose.material3.SnackbarHostState
+import androidx.compose.material3.pulltorefresh.PullToRefreshBox
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -161,14 +168,14 @@ fun SettingsScreen(vm: NotasViewModel, onDone: () -> Unit) {
             }
             Row(horizontalArrangement = Arrangement.spacedBy(10.dp)) {
                 TextButton(onClick = {
-                    scope.launch { vm.testConnection(Settings(url.text, token.text, author.text)) }
+                    scope.launch { vm.testConnection(ServerSettings(url.text, token.text, author.text)) }
                 }) { Text("Testar conexão") }
                 Spacer(Modifier.weight(1f))
                 androidx.compose.material3.Button(
                     enabled = url.text.isNotBlank() && token.text.isNotBlank() &&
                         (url.text.startsWith("http://") || url.text.startsWith("https://")),
                     onClick = {
-                        vm.saveSettings(Settings(url.text, token.text, author.text))
+                        vm.saveSettings(ServerSettings(url.text, token.text, author.text))
                         onDone()
                     },
                     shape = RoundedCornerShape(14.dp),
@@ -195,7 +202,32 @@ fun NotesListScreen(
     val remoteChanged by vm.remoteChanged.collectAsState()
     var filterCat by remember { mutableStateOf<String?>(null) }
     var filterTag by remember { mutableStateOf<String?>(null) }
+    var query by remember { mutableStateOf("") }
+    var deleteTarget by remember { mutableStateOf<NoteEntity?>(null) }
     val snackbar = remember { SnackbarHostState() }
+    val scope = rememberCoroutineScope()
+    deleteTarget?.let { target ->
+        androidx.compose.material3.AlertDialog(
+            onDismissRequest = { deleteTarget = null },
+            icon = { Icon(Icons.Default.Delete, null) },
+            title = { Text("Excluir nota?") },
+            text = {
+                Text("“${target.title.ifBlank { "Sem título" }}” será removida deste aparelho " +
+                    "e do servidor na próxima sincronização (o histórico dela fica nas revisões " +
+                    "do servidor até a exclusão subir). Esta ação não pode ser desfeita pelo app.")
+            },
+            confirmButton = {
+                TextButton(onClick = {
+                    vm.deleteNote(target.id)
+                    deleteTarget = null
+                    scope.launch { snackbar.showSnackbar("Exclusão registrada — sincronizando") }
+                }) { Text("Excluir", color = MaterialTheme.colorScheme.error) }
+            },
+            dismissButton = {
+                TextButton(onClick = { deleteTarget = null }) { Text("Cancelar") }
+            },
+        )
+    }
 
     val catPaths = remember(cats) {
         val byId = cats.associateBy { it.id }
@@ -214,13 +246,9 @@ fun NotesListScreen(
     val allTags = remember(notes) {
         notes.flatMap { it.tags.split(",").filter { t -> t.isNotBlank() } }.distinct().sorted()
     }
-    val shown = remember(notes, filterCat, filterTag) {
+    val shown = remember(notes, filterCat, filterTag, query) {
-        notes.filter { n ->
+        filterNotes(notes, query, filterCat, filterTag)
-            (filterCat == null || n.categories.split(",").contains(filterCat)) &&
-                (filterTag == null || n.tags.split(",").contains(filterTag))
-        }
     }
-
     val events by vm.events.collectAsState()
     LaunchedEffect(events) {
         if (events is ListEvent.RemoteChange) {
@@ -228,7 +256,6 @@ fun NotesListScreen(
             vm.consumeEvent()
         }
     }
-
     Scaffold(
         snackbarHost = { SnackbarHost(snackbar) },
         topBar = {
@@ -259,48 +286,84 @@ fun NotesListScreen(
             )
         },
     ) { pad ->
-        Column(modifier = Modifier.padding(pad).fillMaxSize()) {
+        PullToRefreshBox(
-            SyncBanner(sync, Modifier.padding(horizontal = 12.dp))
+            isRefreshing = sync.phase == SyncPhase.Syncing,
-            if (cats.isNotEmpty() || allTags.isNotEmpty()) {
+            onRefresh = { vm.syncNow() },
-                Row(
+            modifier = Modifier.padding(pad).fillMaxSize(),
-                    modifier = Modifier.fillMaxWidth().horizontalScroll(rememberScrollState())
+        ) {
-                        .padding(horizontal = 12.dp, vertical = 6.dp),
-                    horizontalArrangement = Arrangement.spacedBy(6.dp),
-                ) {
-                    FilterChip(filterCat == null && filterTag == null, { filterCat = null; filterTag = null },
-                        label = { Text("Todas") })
-                    cats.take(12).forEach { c ->
-                        FilterChip(filterCat == c.id, { filterCat = c.id; filterTag = null },
-                            label = { Text("📁 " + (catPaths[c.id] ?: c.name)) })
-                    }
-                    allTags.take(12).forEach { t ->
-                        FilterChip(filterTag == t, { filterTag = t; filterCat = null },
-                            label = { Text("#$t") })
-                    }
-                }
-            }
-            if (shown.isEmpty()) {
-                Box(Modifier.fillMaxSize().weight(1f), contentAlignment = Alignment.Center) {
-                    Text(
-                        if (notes.isEmpty()) "Nenhuma nota ainda.\nToque em “Nova” — funciona offline."
-                        else "Nada com esse filtro.",
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant,
-                    )
-                }
-            }
             LazyColumn(
                 modifier = Modifier.fillMaxSize(),
                 contentPadding = PaddingValues(start = 12.dp, end = 12.dp, bottom = 96.dp),
                 verticalArrangement = Arrangement.spacedBy(8.dp),
             ) {
-                items(shown, key = { it.id }) { note ->
+                item {
+                    SyncStatusRow(
+                        state = sync,
+                        onSyncNow = { vm.syncNow() },
+                        onSettings = onSettings,
+                        modifier = Modifier.padding(vertical = 4.dp),
+                    )
+                }
+                item {
+                    OutlinedTextField(
+                        value = query,
+                        onValueChange = { query = it },
+                        placeholder = { Text("Buscar notas") },
+                        leadingIcon = { Icon(Icons.Default.Search, contentDescription = null) },
+                        trailingIcon = {
+                            if (query.isNotEmpty()) {
+                                IconButton(onClick = { query = "" }) {
+                                    Icon(Icons.Default.Clear, contentDescription = "Limpar busca")
+                                }
+                            }
+                        },
+                        singleLine = true,
+                        shape = RoundedCornerShape(24.dp),
+                        modifier = Modifier.fillMaxWidth().padding(vertical = 4.dp),
+                    )
+                }
+                if (cats.isNotEmpty() || allTags.isNotEmpty()) {
+                    item {
+                        Row(
+                            modifier = Modifier.fillMaxWidth().horizontalScroll(rememberScrollState())
+                                .padding(vertical = 6.dp),
+                            horizontalArrangement = Arrangement.spacedBy(6.dp),
+                        ) {
+                            FilterChip(filterCat == null && filterTag == null, { filterCat = null; filterTag = null },
+                                label = { Text("Todas") })
+                            cats.take(12).forEach { c ->
+                                FilterChip(filterCat == c.id, { filterCat = c.id; filterTag = null },
+                                    label = { Text(catPaths[c.id] ?: c.name) },
+                                    leadingIcon = if (filterCat == c.id) null else ({
+                                        Icon(Icons.Default.Folder, contentDescription = null,
+                                            Modifier.size(16.dp))
+                                    }))
+                            }
+                            allTags.take(12).forEach { t ->
+                                FilterChip(filterTag == t, { filterTag = t; filterCat = null },
+                                    label = { Text("#$t") })
+                            }
+                        }
+                    }
+                }
+                if (shown.isEmpty()) {
+                    item {
+                        EmptyState(
+                            hasNotes = notes.isNotEmpty(),
+                            onNew = onNew,
+                            modifier = Modifier.fillMaxWidth().padding(vertical = 48.dp),
+                        )
+                    }
+                }
+                items(shown, key = { it.id }, contentType = { it.format }) { note ->
                     NoteCard(
                         note = note,
                         catPaths = catPaths,
                         others = presence[note.id] ?: 0,
                         remotelyChanged = remoteChanged.contains(note.id),
                         onClick = { onOpen(note.id) },
+                        onDelete = { deleteTarget = note },
+                        modifier = Modifier.animateItem(),
                     )
                 }
             }
@@ -308,6 +371,100 @@ fun NotesListScreen(
     }
 }
 
+/** Linha de status M3: chip compacto + progresso, sem banner colorido full-width. */
+@Composable
+private fun SyncStatusRow(
+    state: SyncUiState,
+    onSyncNow: () -> Unit,
+    onSettings: () -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    Row(
+        modifier = modifier.fillMaxWidth(),
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.spacedBy(8.dp),
+    ) {
+        when (state.phase) {
+            SyncPhase.Syncing -> {
+                CircularProgressIndicator(Modifier.size(16.dp), strokeWidth = 2.dp)
+                Text("Sincronizando…", style = MaterialTheme.typography.labelLarge,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant)
+            }
+            SyncPhase.Offline -> AssistChip(
+                onClick = onSyncNow,
+                label = { Text("Offline · ${state.pendingCount} na fila") },
+                leadingIcon = { Icon(Icons.Default.CloudOff, null, Modifier.size(16.dp)) },
+            )
+            SyncPhase.Error, SyncPhase.Unauthorized -> AssistChip(
+                onClick = if (state.phase == SyncPhase.Unauthorized) onSettings else onSyncNow,
+                label = { Text(if (state.phase == SyncPhase.Unauthorized) "Token inválido" else "Erro: ${state.message}") },
+                leadingIcon = { Icon(Icons.Default.Warning, null, Modifier.size(16.dp)) },
+                colors = AssistChipDefaults.assistChipColors(
+                    containerColor = MaterialTheme.colorScheme.errorContainer,
+                    labelColor = MaterialTheme.colorScheme.onErrorContainer,
+                    leadingIconContentColor = MaterialTheme.colorScheme.onErrorContainer,
+                ),
+            )
+            SyncPhase.NotConfigured -> AssistChip(
+                onClick = onSettings,
+                label = { Text("Configure o servidor") },
+                leadingIcon = { Icon(Icons.Default.Settings, null, Modifier.size(16.dp)) },
+            )
+            SyncPhase.Synced -> {
+                if (state.pendingCount > 0 || state.dirtyCount > 0) {
+                    AssistChip(
+                        onClick = onSyncNow,
+                        label = { Text("${state.pendingCount + state.dirtyCount} pendente(s)") },
+                        leadingIcon = { Icon(Icons.Default.CloudSync, null, Modifier.size(16.dp)) },
+                    )
+                } else {
+                    val time = java.text.DateFormat.getTimeInstance(java.text.DateFormat.SHORT)
+                        .format(java.util.Date(state.lastSyncAt))
+                    Text("Sincronizado às $time", style = MaterialTheme.typography.labelLarge,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant)
+                }
+                if (state.conflicts > 0) AssistChip(
+                    onClick = onSyncNow,
+                    label = { Text("${state.conflicts} conflito(s)") },
+                    leadingIcon = { Icon(Icons.Default.Warning, null, Modifier.size(16.dp)) },
+                    colors = AssistChipDefaults.assistChipColors(
+                        containerColor = MaterialTheme.colorScheme.tertiaryContainer,
+                        labelColor = MaterialTheme.colorScheme.onTertiaryContainer,
+                        leadingIconContentColor = MaterialTheme.colorScheme.onTertiaryContainer,
+                    ),
+                )
+            }
+        }
+    }
+}
+
+@Composable
+private fun EmptyState(hasNotes: Boolean, onNew: () -> Unit, modifier: Modifier = Modifier) {
+    Column(modifier = modifier, horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.spacedBy(12.dp)) {
+        Icon(Icons.AutoMirrored.Filled.NoteAdd, contentDescription = null, Modifier.size(64.dp),
+            tint = MaterialTheme.colorScheme.surfaceVariant)
+        Text(
+            if (!hasNotes) "Nenhuma nota ainda" else "Nada com esse filtro",
+            style = MaterialTheme.typography.titleMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+        Text(
+            if (!hasNotes) "Toque em Nova — funciona offline."
+            else "Tente outra busca ou filtro.",
+            style = MaterialTheme.typography.bodyMedium,
+            color = MaterialTheme.colorScheme.onSurfaceVariant,
+        )
+        if (!hasNotes) {
+            Button(onClick = onNew) {
+                Icon(Icons.Default.Add, contentDescription = null)
+                Spacer(Modifier.width(8.dp))
+                Text("Nova nota")
+            }
+        }
+    }
+}
+
 @OptIn(ExperimentalMaterial3Api::class, ExperimentalLayoutApi::class)
 @Composable
 private fun NoteCard(
@@ -316,9 +473,11 @@ private fun NoteCard(
     others: Int,
     remotelyChanged: Boolean,
     onClick: () -> Unit,
+    onDelete: () -> Unit,
+    modifier: Modifier = Modifier,
 ) {
-    Card(onClick = onClick, shape = RoundedCornerShape(18.dp), elevation = CardDefaults.cardElevation(2.dp)) {
+    Card(onClick = onClick, modifier = modifier, shape = RoundedCornerShape(20.dp)) {
-        Column(Modifier.padding(14.dp), verticalArrangement = Arrangement.spacedBy(6.dp)) {
+        Column(Modifier.padding(16.dp), verticalArrangement = Arrangement.spacedBy(6.dp)) {
             Row(verticalAlignment = Alignment.CenterVertically) {
                 Text(
                     (note.title.ifBlank { "Sem título" }) + extOf(note.format),
@@ -327,15 +486,25 @@ private fun NoteCard(
                     maxLines = 1,
                 )
                 when {
-                    note.pendingDelete -> StatusDot(Color(0xFFE01B24), "exclusão na fila")
+                    note.pendingDelete -> StatusDot(MaterialTheme.colorScheme.error, "exclusão na fila")
-                    note.dirty -> StatusDot(Color(0xFFE5A50A), "não enviado")
+                    note.dirty -> StatusDot(MaterialTheme.colorScheme.tertiary, "não enviado")
                     else -> Icon(Icons.Default.CloudDone, "sincronizado",
                         Modifier.size(16.dp), tint = MaterialTheme.colorScheme.primary)
                 }
                 if (others > 0) {
                     Spacer(Modifier.width(6.dp))
-                    Text("👥$others", style = MaterialTheme.typography.labelSmall,
+                    AssistChip(
-                        color = MaterialTheme.colorScheme.primary)
+                        onClick = onClick,
+                        label = { Text("$others", style = MaterialTheme.typography.labelSmall) },
+                        leadingIcon = {
+                            Icon(Icons.Default.Group, contentDescription = "$others pessoas visualizando",
+                                Modifier.size(14.dp))
+                        },
+                    )
+                }
+                IconButton(onClick = onDelete, modifier = Modifier.size(32.dp)) {
+                    Icon(Icons.Default.DeleteOutline, "Excluir", Modifier.size(18.dp),
+                        tint = MaterialTheme.colorScheme.outline)
                 }
             }
             Text(
@@ -350,9 +519,16 @@ private fun NoteCard(
                 FlowRow(horizontalArrangement = Arrangement.spacedBy(6.dp),
                     verticalArrangement = Arrangement.spacedBy(4.dp)) {
                     catList.forEach { id ->
-                        AssistChip(onClick = onClick, label = {
+                        AssistChip(
-                            Text("📁 " + (catPaths[id] ?: id), style = MaterialTheme.typography.labelSmall)
+                            onClick = onClick,
-                        })
+                            label = {
+                                Text(catPaths[id] ?: id, style = MaterialTheme.typography.labelSmall)
+                            },
+                            leadingIcon = {
+                                Icon(Icons.Default.Folder, contentDescription = null,
+                                    Modifier.size(14.dp))
+                            },
+                        )
                     }
                     if (remotelyChanged) WarnChip("mudou remotamente")
                     if (note.conflictNote.isNotBlank()) WarnChip("conflito resolvido")
@@ -399,6 +575,7 @@ fun EditorScreen(vm: NotasViewModel, noteId: String, onBack: () -> Unit) {
     var selectedCats by remember { mutableStateOf<List<String>>(emptyList()) }
     var savedAt by remember { mutableStateOf("") }
     var mode by remember { mutableStateOf(EditorMode.Edit) }
+    var confirmDelete by remember { mutableStateOf(false) }
     val cats by vm.categories.collectAsState()
     val remoteChanged by vm.remoteChanged.collectAsState()
     val presence by vm.presence.collectAsState()
@@ -406,6 +583,28 @@ fun EditorScreen(vm: NotasViewModel, noteId: String, onBack: () -> Unit) {
     val keyboard = LocalSoftwareKeyboardController.current
     val dark = isSystemInDarkTheme()
 
+    if (confirmDelete) {
+        androidx.compose.material3.AlertDialog(
+            onDismissRequest = { confirmDelete = false },
+            icon = { Icon(Icons.Default.Delete, null) },
+            title = { Text("Excluir nota?") },
+            text = {
+                Text("“${title.text.ifBlank { "Sem título" }}” será removida deste aparelho e do " +
+                    "servidor na próxima sincronização. Esta ação não pode ser desfeita pelo app.")
+            },
+            confirmButton = {
+                TextButton(onClick = {
+                    confirmDelete = false
+                    vm.deleteNote(noteId)
+                    onBack()
+                }) { Text("Excluir", color = MaterialTheme.colorScheme.error) }
+            },
+            dismissButton = {
+                TextButton(onClick = { confirmDelete = false }) { Text("Cancelar") }
+            },
+        )
+    }
+
     LaunchedEffect(noteId) {
         vm.noteById(noteId)?.let {
             title = TextFieldValue(it.title)
@@ -484,7 +683,16 @@ fun EditorScreen(vm: NotasViewModel, noteId: String, onBack: () -> Unit) {
                     )
                 },
                 actions = {
-                    if ((presence[noteId] ?: 0) > 0) Text("👥", Modifier.padding(end = 6.dp))
+                    if ((presence[noteId] ?: 0) > 0) {
+                        AssistChip(
+                            onClick = {},
+                            label = { Text("${presence[noteId]}") },
+                            leadingIcon = {
+                                Icon(Icons.Default.Group, contentDescription = "Pessoas nesta nota",
+                                    Modifier.size(16.dp))
+                            },
+                        )
+                    }
                     Text(
                         savedAt.ifBlank { if (loaded) "—" else "" },
                         style = MaterialTheme.typography.labelSmall,
@@ -493,6 +701,9 @@ fun EditorScreen(vm: NotasViewModel, noteId: String, onBack: () -> Unit) {
                     IconButton(onClick = { persist(); keyboard?.hide() }) {
                         Icon(Icons.Default.CloudDone, "Salvar")
                     }
+                    IconButton(onClick = { confirmDelete = true }) {
+                        Icon(Icons.Default.Delete, "Excluir", tint = MaterialTheme.colorScheme.outline)
+                    }
                 },
             )
         },

app/src/main/java/com/labexposed/notas/ui/theme/Theme.kt

@@ -3,6 +3,7 @@ package com.labexposed.notas.ui.theme
 import android.os.Build
 import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Typography
 import androidx.compose.material3.darkColorScheme
 import androidx.compose.material3.dynamicDarkColorScheme
 import androidx.compose.material3.dynamicLightColorScheme
@@ -10,8 +11,12 @@ import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
 
-// seed Greybird/Mousepad-like
+// seed Greybird/Mousepad-like (fallback quando dynamic color indisponível)
 private val Light = lightColorScheme(
     primary = Color(0xFF1C71D8),
     secondary = Color(0xFF3584E4),
@@ -24,6 +29,16 @@ private val Dark = darkColorScheme(
     secondary = Color(0xFF3584E4),
 )
 
+private val NotasTypography = Typography(
+    titleLarge = TextStyle(
+        fontFamily = FontFamily.Default,
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 22.sp,
+        lineHeight = 28.sp,
+        letterSpacing = 0.sp,
+    ),
+)
+
 @Composable
 fun NotasTheme(content: @Composable () -> Unit) {
     val ctx = LocalContext.current
@@ -34,5 +49,9 @@ fun NotasTheme(content: @Composable () -> Unit) {
         isSystemInDarkTheme() -> Dark
         else -> Light
     }
-    MaterialTheme(colorScheme = scheme, content = content)
+    MaterialTheme(
+        colorScheme = scheme,
+        typography = NotasTypography,
+        content = content,
+    )
 }

app/src/test/java/com/labexposed/notas/ui/NoteSearchTest.kt

@@ -0,0 +1,29 @@
+package com.labexposed.notas.ui
+
+import com.labexposed.notas.data.local.NoteEntity
+import org.junit.Assert.assertEquals
+import org.junit.Test
+
+class NoteSearchTest {
+    @Test
+    fun queryMatchesTitleOrContentWithoutCaseSensitivity() {
+        val notes = listOf(
+            note("1", title = "Plano semanal", content = "rascunho"),
+            note("2", title = "Diário", content = "Revisar PLANO amanhã"),
+            note("3", title = "Compras", content = "leite e pão"),
+        )
+
+        val result = filterNotes(notes, query = "plano")
+
+        assertEquals(listOf("1", "2"), result.map { it.id })
+    }
+
+    private fun note(id: String, title: String, content: String) = NoteEntity(
+        id = id,
+        title = title,
+        format = "md",
+        content = content,
+        createdAt = 1L,
+        updatedAt = 1L,
+    )
+}