fix: send ui

app/src/main/java/com/bitcointxoko/gudariwallet/i18n/EnStrings.kt

@@ -126,6 +126,11 @@ val EnHomeStrings = AppStrings(
     resolving             = "Resolving…",
     sendingPayment        = "Sending payment…",
 
+    // ── SendScreen — paying ───────────────────────────────────────────────────
+    paymentTakingLong     = "This is taking longer than usual",
+    paymentTakingLongDetail = "Your payment is still on its way. This may be a hold invoice that settles when the recipient is ready. You'll get a notification when it completes — you can safely leave this screen.",
+    dismissPayment        = "Dismiss",
+
     // ── SendScreen — payment sent ─────────────────────────────────────────────
     paymentSent           = "Payment sent!",
     amountSats            = { sats -> "$sats sats" },

app/src/main/java/com/bitcointxoko/gudariwallet/i18n/EsStrings.kt

@@ -126,6 +126,11 @@ val EsHomeStrings = AppStrings(
     resolving             = "Resolviendo…",
     sendingPayment        = "Enviando pago…",
 
+    // ── SendScreen — paying ───────────────────────────────────────────────────
+    paymentTakingLong       = "Esto está tardando más de lo habitual",
+    paymentTakingLongDetail = "Tu pago sigue en camino. Es posible que sea una factura hold que se liquidará cuando el destinatario esté listo. Recibirás una notificación cuando se complete — puedes salir de esta pantalla con seguridad.",
+    dismissPayment          = "Salir",
+
     // ── SendScreen — payment sent ─────────────────────────────────────────────
     paymentSent           = "¡Pago enviado!",
     amountSats            = { sats -> "$sats sats" },

app/src/main/java/com/bitcointxoko/gudariwallet/i18n/EuStrings.kt

@@ -126,6 +126,12 @@ val EuStrings = AppStrings(
     resolving             = "Ebazten…",
     sendingPayment        = "Ordainketa bidaltzen…",
 
+    // ── SendScreen — paying ───────────────────────────────────────────────────
+    paymentTakingLong       = "Ohikoa baino gehiago ari da irauten",
+    paymentTakingLongDetail = "Zure ordainketa bidean dago oraindik. Baliteke atxikitako faktura bat izatea, hartzaileak prest dagoenean kitatzekoa. Jakinarazpen bat jasoko duzu burutzen denean — pantaila hau segurtasunez utzi dezakezu.",
+    dismissPayment          = "Utzi",
+
+
     // ── SendScreen — payment sent ─────────────────────────────────────────────
     paymentSent           = "Ordainketa bidalita!",
     amountSats            = { sats -> "$sats sat" },

app/src/main/java/com/bitcointxoko/gudariwallet/i18n/Strings.kt

@@ -135,6 +135,11 @@ data class AppStrings(
     val resolving             : String,
     val sendingPayment        : String,
 
+    // ── SendScreen — paying ───────────────────────────────────────────────────
+    val paymentTakingLong      : String,
+    val paymentTakingLongDetail: String,
+    val dismissPayment         : String,
+
     // ── SendScreen — payment sent ─────────────────────────────────────────────
     val paymentSent           : String,
     val amountSats            : (sats: Long) -> String,

app/src/main/java/com/bitcointxoko/gudariwallet/ui/send/SendScreen.kt

@@ -6,8 +6,10 @@ import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.CheckCircle
 import androidx.compose.material.icons.filled.ContentPaste
 import androidx.compose.material.icons.filled.Nfc
+import androidx.compose.material.icons.outlined.HourglassTop
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
@@ -28,10 +30,13 @@ import com.bitcointxoko.gudariwallet.ui.NfcOfferState
 import com.bitcointxoko.gudariwallet.ui.SendState
 import com.bitcointxoko.gudariwallet.ui.WalletViewModel
 import com.bitcointxoko.gudariwallet.ui.nfc.NfcViewModel
+import com.bitcointxoko.gudariwallet.ui.receive.AmountDisplay
 import com.bitcointxoko.gudariwallet.util.SendInputDetector
 import com.bitcointxoko.gudariwallet.util.feePpm
+import com.bitcointxoko.gudariwallet.util.fiatLabel
 import com.bitcointxoko.gudariwallet.util.formatFiat
 import com.bitcointxoko.gudariwallet.util.satsToFiat
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 
 @Composable
@@ -89,25 +94,9 @@ fun SendScreen(
                 text  = strings.send,                                      // ← "Send"
                 style = MaterialTheme.typography.headlineSmall
             )
+        }
 
-            // NFC indicator — only visible in Idle/Error, lights up when offer pending
+        Spacer(Modifier.height(16.dp))
-            if (sendState is SendState.Idle || sendState is SendState.Error) {
-                FilledTonalIconButton(
-                    onClick  = { /* passive indicator */ },
-                    modifier = Modifier.size(40.dp)
-                ) {
-                    Icon(
-                        imageVector        = Icons.Filled.Nfc,
-                        contentDescription = strings.tapNfcHint,           // ← "Tap NFC device to receive invoice"
-                        tint               = if (nfcOffer is NfcOfferState.Detected)
-                            MaterialTheme.colorScheme.primary
-                        else
-                            MaterialTheme.colorScheme.onSurfaceVariant,
-                        modifier           = Modifier.size(20.dp)
-                    )
-                }
-            }
-        }
 
         if (sendState !is SendState.PaymentSent) {
             OutlinedTextField(
@@ -206,42 +195,60 @@ fun SendScreen(
             }
 
             is SendState.Paying -> {
+                var slowPayment by remember { mutableStateOf(false) }
+
+                LaunchedEffect(Unit) {
+                    delay(10_000L)
+                    slowPayment = true
+                }
+
                 Spacer(Modifier.height(16.dp))
+                Column(
+                    modifier            = Modifier.fillMaxWidth(),
+                    horizontalAlignment = Alignment.CenterHorizontally
+                ) {
+                    if (slowPayment) {
+                        // Slow path — replace spinner with explanatory text
+                        Icon(
+                            imageVector        = Icons.Outlined.HourglassTop,
+                            contentDescription = null,
+                            tint               = MaterialTheme.colorScheme.onSurfaceVariant,
+                            modifier           = Modifier.size(32.dp)
+                        )
+                        Spacer(Modifier.height(12.dp))
+                        Text(
+                            text      = strings.paymentTakingLong,   // "This is taking longer than usual"
+                            style     = MaterialTheme.typography.titleMedium,
+                            textAlign = TextAlign.Center
+                        )
+                        Spacer(Modifier.height(8.dp))
+                        Text(
+                            text      = strings.paymentTakingLongDetail,
+                            // "Your payment is still on its way. This may be a hold invoice
+                            //  that settles when the recipient is ready. You'll get a
+                            //  notification when it completes — you can safely leave this screen."
+                            style     = MaterialTheme.typography.bodySmall,
+                            color     = MaterialTheme.colorScheme.onSurfaceVariant,
+                            textAlign = TextAlign.Center
+                        )
+                        Spacer(Modifier.height(20.dp))
+                        OutlinedButton(
+                            onClick  = { vm.resetSendState(); input = "" },
+                            modifier = Modifier.fillMaxWidth()
+                        ) {
+                            Text(strings.dismissPayment) // "Dismiss"
+                        }
+                    } else {
+                        // Fast path — normal spinner
                         CircularProgressIndicator()
                         Spacer(Modifier.height(8.dp))
-                Text(strings.sendingPayment)                               // ← "Sending payment…"
+                        Text(strings.sendingPayment) // "Sending payment…"
+                    }
+                }
             }
 
             is SendState.PaymentSent -> {
-                Spacer(Modifier.height(32.dp))
+                val fiatLabel = fiatLabel(state.amountSats, fiatRate, fiatCurrency)
-                Text(
-                    text  = "✓",
-                    style = MaterialTheme.typography.displayLarge,
-                    color = MaterialTheme.colorScheme.primary
-                )
-                Spacer(Modifier.height(8.dp))
-                Text(
-                    text  = strings.paymentSent,                           // ← "Payment sent!"
-                    style = MaterialTheme.typography.headlineSmall
-                )
-                Spacer(Modifier.height(4.dp))
-                Text(
-                    text  = strings.amountSats(state.amountSats),          // ← "X sats"
-                    color = MaterialTheme.colorScheme.onSurfaceVariant
-                )
-                val fiatAmount = if (fiatRate != null && fiatCurrency != null) {
-                    satsToFiat(state.amountSats, fiatRate)
-                } else null
-                if (fiatAmount != null && fiatCurrency != null) {
-                    Text(
-                        text  = strings.fiatEquivalent(                    // ← "≈ X.XX EUR"
-                            formatFiat(fiatAmount, fiatCurrency)
-                        ),
-                        style = MaterialTheme.typography.bodyMedium,
-                        color = MaterialTheme.colorScheme.onSurfaceVariant
-                    )
-                }
-                Spacer(Modifier.height(4.dp))
                 val ppm = if (state.feeSats != null && state.feeSats != 0L) {
                     feePpm(
                         amountMsat = state.amountSats * 1_000L,
@@ -256,13 +263,33 @@ fun SendScreen(
                         strings.routingFee(state.feeSats, ppmSuffix)      // ← "Routing fee: X sats (Y ppm)"
                     }
                 }
+
+                Column(
+                    modifier            = Modifier.fillMaxSize(),
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    verticalArrangement = Arrangement.Center
+                ) {
+                    Icon(
+                        imageVector        = Icons.Filled.CheckCircle,
+                        contentDescription = null,
+                        tint               = MaterialTheme.colorScheme.primary,
+                        modifier           = Modifier.size(72.dp)
+                    )
+                    Spacer(Modifier.height(16.dp))
+                    Text(
+                        text  = strings.paymentSent,                       // ← "Payment sent!"
+                        style = MaterialTheme.typography.headlineSmall
+                    )
+                    Spacer(Modifier.height(8.dp))
+                    AmountDisplay(amountSats = state.amountSats, fiatLabel = fiatLabel)
+                    Spacer(Modifier.height(4.dp))
                     Text(
                         text  = feeText,
                         style = MaterialTheme.typography.bodySmall,
                         color = MaterialTheme.colorScheme.onSurfaceVariant
                     )
                     Spacer(Modifier.height(32.dp))
-                OutlinedButton(
+                    Button(
                         onClick  = {
                             val record = state.pendingRecord
                             if (record != null) {
@@ -272,12 +299,13 @@ fun SendScreen(
                         enabled  = state.pendingRecord != null,
                         modifier = Modifier.fillMaxWidth()
                     ) { Text(strings.details) }                            // ← "Details"
-                Spacer(Modifier.height(8.dp))
+                    Spacer(Modifier.height(32.dp))
-                Button(
+                    TextButton(
                         onClick  = { vm.resetSendState(); input = "" },
                         modifier = Modifier.fillMaxWidth()
                     ) { Text(strings.sendAnother) }                        // ← "Send Another"
                 }
+            }
 
             is SendState.Error -> {
                 Spacer(Modifier.height(8.dp))