feat(ui): дизайн-система radiOLA — палитра, тема, типографика, бренд, motion, pill таб-бар

- цветовые токены тёмно-зелёной темы + RadiolaColors (CompositionLocal)
- darkColorScheme + всегда тёмная тема, фирменные shapes
- типографика с весами/размерами под макет
- Brand: AppMark (градиентный R), RadiolaWordmark, MonoMark
- Motion: спеки движения, pressScale, живой эквалайзер
- pill-таб-бар с анимированной активной вкладкой

app/src/main/java/com/radiola/ui/navigation/BottomNavBar.kt

@@ -1,22 +1,63 @@
 package com.radiola.ui.navigation
 
+import androidx.compose.animation.AnimatedVisibility
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.animation.expandHorizontally
+import androidx.compose.animation.fadeIn
+import androidx.compose.animation.fadeOut
+import androidx.compose.animation.shrinkHorizontally
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.material3.Icon
-import androidx.compose.material3.NavigationBar
-import androidx.compose.material3.NavigationBarItem
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import androidx.navigation.compose.currentBackStackEntryAsState
+import com.radiola.ui.theme.Motion
+import com.radiola.ui.theme.RadiolaTheme
 
 @Composable
 fun BottomNavBar(navController: NavController) {
+    val colors = RadiolaTheme.colors
     val currentRoute = navController.currentBackStackEntryAsState().value?.destination?.route
-    NavigationBar {
+    val items = NavDestinations.items.filter { it.showInBottomBar }
-        NavDestinations.items.filter { it.showInBottomBar }.forEach { destination ->
+
-            NavigationBarItem(
+    Row(
-                icon = { Icon(destination.icon, contentDescription = destination.labelRes) },
+        modifier = Modifier
-                label = { Text(destination.labelRes) },
+            .fillMaxWidth()
-                selected = currentRoute == destination.route,
+            .padding(start = 16.dp, end = 16.dp, top = 8.dp, bottom = 16.dp)
+            .clip(RoundedCornerShape(36.dp))
+            .background(colors.surface2)
+            .border(1.dp, colors.border, RoundedCornerShape(36.dp))
+            .height(62.dp)
+            .padding(6.dp),
+        horizontalArrangement = Arrangement.spacedBy(4.dp),
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        items.forEach { destination ->
+            val selected = currentRoute == destination.route
+            PillTab(
+                label = destination.labelRes,
+                icon = destination.icon,
+                selected = selected,
+                modifier = Modifier.weight(if (selected) 1.9f else 1f),
                 onClick = {
                     if (currentRoute != destination.route) {
                         navController.navigate(destination.route) {
@@ -30,3 +71,60 @@ fun BottomNavBar(navController: NavController) {
         }
     }
 }
+
+@Composable
+private fun PillTab(
+    label: String,
+    icon: androidx.compose.ui.graphics.vector.ImageVector,
+    selected: Boolean,
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    val colors = RadiolaTheme.colors
+    val bg by animateColorAsState(
+        targetValue = if (selected) colors.accent else androidx.compose.ui.graphics.Color.Transparent,
+        animationSpec = tween(Motion.Medium),
+        label = "tabBg"
+    )
+    val content by animateColorAsState(
+        targetValue = if (selected) colors.bgBase else colors.textSecondary,
+        animationSpec = tween(Motion.Medium),
+        label = "tabFg"
+    )
+    Row(
+        modifier = modifier
+            .fillMaxWidth()
+            .height(50.dp)
+            .clip(RoundedCornerShape(26.dp))
+            .background(bg)
+            .clickable(
+                interactionSource = remember { MutableInteractionSource() },
+                indication = null,
+                onClick = onClick
+            ),
+        horizontalArrangement = Arrangement.Center,
+        verticalAlignment = Alignment.CenterVertically
+    ) {
+        Icon(
+            imageVector = icon,
+            contentDescription = label,
+            tint = content,
+            modifier = Modifier.height(18.dp).width(18.dp)
+        )
+        AnimatedVisibility(
+            visible = selected,
+            enter = fadeIn(tween(Motion.Medium)) + expandHorizontally(tween(Motion.Medium)),
+            exit = fadeOut(tween(Motion.Fast)) + shrinkHorizontally(tween(Motion.Fast))
+        ) {
+            Row(verticalAlignment = Alignment.CenterVertically) {
+                Spacer(Modifier.width(8.dp))
+                Text(
+                    text = label.uppercase(),
+                    color = content,
+                    style = androidx.compose.material3.MaterialTheme.typography.labelSmall,
+                    maxLines = 1
+                )
+            }
+        }
+    }
+}

app/src/main/java/com/radiola/ui/theme/Brand.kt

@@ -0,0 +1,95 @@
+package com.radiola.ui.theme
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.border
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.shape.CircleShape
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import androidx.compose.material3.Text
+
+/** Брендовый градиент иконки. */
+fun brandGradient(): Brush = Brush.linearGradient(listOf(BrandGradientStart, BrandGradientEnd))
+
+/**
+ * Иконка-марка приложения: градиентный squircle с монограммой «R».
+ */
+@Composable
+fun AppMark(
+    size: Dp = 76.dp,
+    modifier: Modifier = Modifier
+) {
+    val radius = (size.value * 0.29f).dp
+    Box(
+        modifier = modifier
+            .size(size)
+            .clip(RoundedCornerShape(radius))
+            .background(brandGradient()),
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = "R",
+            color = BgBase,
+            fontWeight = FontWeight.Black,
+            fontSize = (size.value * 0.62f).sp
+        )
+    }
+}
+
+/**
+ * Текстовый логотип «radiOLA»: «radi» основным цветом, «OLA» акцентом.
+ */
+@Composable
+fun RadiolaWordmark(
+    fontSize: Int = 26,
+    modifier: Modifier = Modifier
+) {
+    Row(modifier = modifier, verticalAlignment = Alignment.CenterVertically) {
+        Text(
+            text = "radi",
+            color = TextPrimary,
+            fontWeight = FontWeight.Bold,
+            fontSize = fontSize.sp
+        )
+        Text(
+            text = "OLA",
+            color = Accent,
+            fontWeight = FontWeight.Bold,
+            fontSize = fontSize.sp
+        )
+    }
+}
+
+/** Монохромная марка для нейтральных подложек (уведомления, виджет). */
+@Composable
+fun MonoMark(
+    size: Dp = 24.dp,
+    color: Color = TextPrimary,
+    modifier: Modifier = Modifier
+) {
+    Box(
+        modifier = modifier
+            .size(size)
+            .clip(RoundedCornerShape((size.value * 0.27f).dp))
+            .border(1.5.dp, color, RoundedCornerShape((size.value * 0.27f).dp)),
+        contentAlignment = Alignment.Center
+    ) {
+        Text(
+            text = "R",
+            color = color,
+            fontWeight = FontWeight.Black,
+            fontSize = (size.value * 0.6f).sp
+        )
+    }
+}

app/src/main/java/com/radiola/ui/theme/Color.kt

@@ -2,12 +2,23 @@ package com.radiola.ui.theme
 
 import androidx.compose.ui.graphics.Color
 
-val Primary = Color(0xFF6200EE)
+// Базовая палитра radiOLA (тёмно-зелёная тема)
-val PrimaryDark = Color(0xFF3700B3)
+val BgBase = Color(0xFF0C1410)
-val Secondary = Color(0xFF03DAC6)
+val BgSurface = Color(0xFF16201A)
-val Background = Color(0xFF121212)
+val BgSurface2 = Color(0xFF1E2A23)
-val Surface = Color(0xFF1E1E1E)
+val BgElevated = Color(0xFF243029)
-val OnPrimary = Color.White
+
-val OnSecondary = Color.Black
+val Accent = Color(0xFFA8E05F)
-val OnBackground = Color.White
+val AccentDim = Color(0xFF6FA53C)
-val OnSurface = Color.White
+
+val TextPrimary = Color(0xFFFFFFFF)
+val TextSecondary = Color(0xFF8FA396)
+val TextMuted = Color(0xFF5C6E63)
+
+val BorderColor = Color(0xFF2A352E)
+val LiveRed = Color(0xFFFF5252)
+val LiveRedSoft = Color(0xFFFF6B6B)
+
+// Брендовый градиент (иконка приложения, акцентные элементы)
+val BrandGradientStart = Color(0xFFC2F25B)
+val BrandGradientEnd = Color(0xFF6FA53C)

app/src/main/java/com/radiola/ui/theme/Motion.kt

@@ -0,0 +1,102 @@
+package com.radiola.ui.theme
+
+import androidx.compose.animation.core.Animatable
+import androidx.compose.animation.core.FastOutSlowInEasing
+import androidx.compose.animation.core.LinearEasing
+import androidx.compose.animation.core.RepeatMode
+import androidx.compose.animation.core.Spring
+import androidx.compose.animation.core.animateFloat
+import androidx.compose.animation.core.infiniteRepeatable
+import androidx.compose.animation.core.rememberInfiniteTransition
+import androidx.compose.animation.core.spring
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.Canvas
+import androidx.compose.foundation.gestures.detectTapGestures
+import androidx.compose.foundation.interaction.MutableInteractionSource
+import androidx.compose.foundation.interaction.collectIsPressedAsState
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.geometry.CornerRadius
+import androidx.compose.ui.geometry.Offset
+import androidx.compose.ui.geometry.Size
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.graphicsLayer
+import androidx.compose.ui.unit.dp
+import kotlin.math.abs
+
+/** Стандартные длительности и кривые движения приложения. */
+object Motion {
+    const val Fast = 120
+    const val Medium = 220
+    const val Slow = 360
+
+    fun <T> snappy() = spring<T>(
+        dampingRatio = Spring.DampingRatioMediumBouncy,
+        stiffness = Spring.StiffnessMediumLow
+    )
+
+    fun <T> gentle() = tween<T>(durationMillis = Medium, easing = FastOutSlowInEasing)
+}
+
+/** Лёгкое нажатие: плавное уменьшение масштаба, пока палец на элементе. */
+@Composable
+fun Modifier.pressScale(
+    pressedScale: Float = 0.94f,
+    interactionSource: MutableInteractionSource = remember { MutableInteractionSource() }
+): Modifier {
+    val pressed by interactionSource.collectIsPressedAsState()
+    val scale by androidx.compose.animation.core.animateFloatAsState(
+        targetValue = if (pressed) pressedScale else 1f,
+        animationSpec = tween(Motion.Fast, easing = FastOutSlowInEasing),
+        label = "pressScale"
+    )
+    return this.graphicsLayer {
+        scaleX = scale
+        scaleY = scale
+    }
+}
+
+/**
+ * Живой эквалайзер для прямого эфира — декоративный, без перемотки.
+ * Полоски плавно «дышат» при воспроизведении.
+ */
+@Composable
+fun LiveEqualizer(
+    modifier: Modifier = Modifier,
+    barCount: Int = 36,
+    color: Color = Accent,
+    playing: Boolean = true
+) {
+    val transition = rememberInfiniteTransition(label = "eq")
+    val phase by transition.animateFloat(
+        initialValue = 0f,
+        targetValue = (Math.PI * 2).toFloat(),
+        animationSpec = infiniteRepeatable(
+            animation = tween(1400, easing = LinearEasing),
+            repeatMode = RepeatMode.Restart
+        ),
+        label = "eqPhase"
+    )
+    Canvas(modifier = modifier) {
+        val gap = 3.dp.toPx()
+        val barWidth = (size.width - gap * (barCount - 1)) / barCount
+        val maxH = size.height
+        for (i in 0 until barCount) {
+            val seed = (i * 0.7f)
+            val wave = if (playing) {
+                0.45f + 0.55f * abs(kotlin.math.sin(phase + seed))
+            } else 0.25f
+            val h = maxH * wave
+            val x = i * (barWidth + gap)
+            val y = (maxH - h) / 2f
+            drawRoundRect(
+                color = color,
+                topLeft = Offset(x, y),
+                size = Size(barWidth, h),
+                cornerRadius = CornerRadius(barWidth / 2f, barWidth / 2f)
+            )
+        }
+    }
+}

app/src/main/java/com/radiola/ui/theme/Shape.kt

@@ -0,0 +1,13 @@
+package com.radiola.ui.theme
+
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.Shapes
+import androidx.compose.ui.unit.dp
+
+val RadiolaShapes = Shapes(
+    extraSmall = RoundedCornerShape(8.dp),
+    small = RoundedCornerShape(12.dp),
+    medium = RoundedCornerShape(16.dp),
+    large = RoundedCornerShape(20.dp),
+    extraLarge = RoundedCornerShape(28.dp)
+)

app/src/main/java/com/radiola/ui/theme/Theme.kt

@@ -1,38 +1,69 @@
 package com.radiola.ui.theme
 
-import androidx.compose.foundation.isSystemInDarkTheme
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.darkColorScheme
-import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.CompositionLocalProvider
+import androidx.compose.runtime.staticCompositionLocalOf
+import androidx.compose.ui.graphics.Brush
+import androidx.compose.ui.graphics.Color
+
+/**
+ * Расширенные токены, которых нет в Material ColorScheme.
+ * Доступ через MaterialTheme-стиль: `RadiolaTheme.colors`.
+ */
+data class RadiolaColors(
+    val bgBase: Color = BgBase,
+    val surface: Color = BgSurface,
+    val surface2: Color = BgSurface2,
+    val elevated: Color = BgElevated,
+    val accent: Color = Accent,
+    val accentDim: Color = AccentDim,
+    val textPrimary: Color = TextPrimary,
+    val textSecondary: Color = TextSecondary,
+    val textMuted: Color = TextMuted,
+    val border: Color = BorderColor,
+    val live: Color = LiveRed,
+) {
+    val brandGradient: Brush
+        get() = Brush.linearGradient(listOf(BrandGradientStart, BrandGradientEnd))
+}
+
+val LocalRadiolaColors = staticCompositionLocalOf { RadiolaColors() }
+
+object RadiolaTheme {
+    val colors: RadiolaColors
+        @Composable get() = LocalRadiolaColors.current
+}
 
 private val DarkColorScheme = darkColorScheme(
-    primary = Primary,
+    primary = Accent,
-    secondary = Secondary,
+    onPrimary = BgBase,
-    background = Background,
+    secondary = AccentDim,
-    surface = Surface,
+    onSecondary = BgBase,
-    onPrimary = OnPrimary,
+    background = BgBase,
-    onSecondary = OnSecondary,
+    onBackground = TextPrimary,
-    onBackground = OnBackground,
+    surface = BgSurface,
-    onSurface = OnSurface
+    onSurface = TextPrimary,
-)
+    surfaceVariant = BgSurface2,
-
+    onSurfaceVariant = TextSecondary,
-private val LightColorScheme = lightColorScheme(
+    outline = BorderColor,
-    primary = Primary,
+    outlineVariant = BorderColor,
-    secondary = Secondary,
+    error = LiveRed,
-    onPrimary = OnPrimary,
+    onError = BgBase,
-    onSecondary = OnSecondary
 )
 
 @Composable
 fun RadiolaTheme(
-    darkTheme: Boolean = isSystemInDarkTheme(),
     content: @Composable () -> Unit
 ) {
-    val colorScheme = if (darkTheme) DarkColorScheme else LightColorScheme
+    // Приложение всегда в тёмной фирменной теме.
+    CompositionLocalProvider(LocalRadiolaColors provides RadiolaColors()) {
         MaterialTheme(
-        colorScheme = colorScheme,
+            colorScheme = DarkColorScheme,
             typography = Typography,
+            shapes = RadiolaShapes,
             content = content
         )
+    }
 }

app/src/main/java/com/radiola/ui/theme/Type.kt

@@ -6,30 +6,55 @@ import androidx.compose.ui.text.font.FontFamily
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.sp
 
+// Системный гротеск; брендовый wordmark рисуется отдельно (Brand.kt).
+private val AppFont = FontFamily.Default
+
 val Typography = Typography(
     headlineLarge = TextStyle(
-        fontFamily = FontFamily.Default,
+        fontFamily = AppFont,
         fontWeight = FontWeight.Bold,
-        fontSize = 28.sp
+        fontSize = 30.sp,
+        letterSpacing = (-0.5).sp
     ),
     headlineMedium = TextStyle(
-        fontFamily = FontFamily.Default,
+        fontFamily = AppFont,
-        fontWeight = FontWeight.SemiBold,
+        fontWeight = FontWeight.Bold,
-        fontSize = 22.sp
+        fontSize = 26.sp
+    ),
+    titleLarge = TextStyle(
+        fontFamily = AppFont,
+        fontWeight = FontWeight.Bold,
+        fontSize = 18.sp
     ),
     titleMedium = TextStyle(
-        fontFamily = FontFamily.Default,
+        fontFamily = AppFont,
-        fontWeight = FontWeight.Medium,
+        fontWeight = FontWeight.SemiBold,
         fontSize = 16.sp
     ),
+    bodyLarge = TextStyle(
+        fontFamily = AppFont,
+        fontWeight = FontWeight.Normal,
+        fontSize = 15.sp
+    ),
     bodyMedium = TextStyle(
-        fontFamily = FontFamily.Default,
+        fontFamily = AppFont,
         fontWeight = FontWeight.Normal,
         fontSize = 14.sp
     ),
+    labelLarge = TextStyle(
+        fontFamily = AppFont,
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 13.sp
+    ),
     labelMedium = TextStyle(
-        fontFamily = FontFamily.Default,
+        fontFamily = AppFont,
         fontWeight = FontWeight.Medium,
         fontSize = 12.sp
+    ),
+    labelSmall = TextStyle(
+        fontFamily = AppFont,
+        fontWeight = FontWeight.SemiBold,
+        fontSize = 10.sp,
+        letterSpacing = 1.sp
     )
 )