Lumotia/src/lib/pages/SettingsPage.svelte

<script lang="ts">
  // @ts-nocheck
  import { onMount, onDestroy } from "svelte";
  import { invoke } from "@tauri-apps/api/core";
  import { listen } from "@tauri-apps/api/event";
  import { settings, saveSettings, profiles, saveProfiles, templates, saveTemplates, page, addProfileTaskList, removeProfileTaskList } from "$lib/stores/page.svelte.js";
  import Card from "$lib/components/Card.svelte";
  import Toggle from "$lib/components/Toggle.svelte";
  import SegmentedButton from "$lib/components/SegmentedButton.svelte";
  import HotkeyRecorder from "$lib/components/HotkeyRecorder.svelte";
  import ZonePicker from "$lib/components/ZonePicker.svelte";
  import AccessibilityControls from "$lib/components/AccessibilityControls.svelte";
  import { getPreferences, updatePreferences } from "$lib/stores/preferences.svelte.js";
  import { profilesStore, DEFAULT_PROFILE_ID } from "$lib/stores/profiles.svelte.ts";
  import { toasts } from "$lib/stores/toasts.svelte.js";
  import { clampTextLines } from "$lib/utils/textMeasure.js";
  import { bodyPretextLineHeight, pretextFontShorthand } from "$lib/utils/accessibilityTypography.js";
  import { Check, ChevronRight } from "lucide-svelte";
  import { _ } from "svelte-i18n";
  import { SUPPORTED_LOCALES, setLocale, currentLocale } from "$lib/i18n";
  // Aliased because SettingsPage has its own local refreshLlmStatus
  // that just mutates the page-local llmLoaded bool. The store
  // version drives the sidebar chip (brief item #31).
  import { refreshLlmStatus as refreshGlobalLlmStatus } from "$lib/stores/llmStatus.svelte.js";

  const prefs = getPreferences();

  let engineStatus = $state("Checking...");
  let engineOk = $state(false);
  let downloadedModels = $state([]);
  let runtimeCapabilities = $state(null);
  let pasteBackends = $state([]);
  let pasteBackendsDescription = $derived.by(() => {
    if (pasteBackends.length === 0) {
      return "Install wtype (Wayland) or xdotool (X11) to enable auto-paste. Focus must already be on the target window.";
    }
    return `Uses ${pasteBackends.join(", ")}. Focus must already be on the target window.`;
  });
  let downloadingModel = $state("");
  let downloadProgress = $state(0);
  let unlisten = null;
  let unlistenLlm = null;
  let outputFolderEl = $state(null);
  let outputFolderWidth = $state(0);
  let llmStatuses = $state({});
  let llmStatus = $state("Checking...");
  let llmDownloadingModel = $state("");
  let llmDownloadProgress = $state(0);
  let llmLoaded = $state(false);
  let systemInfo = $state(null);

  const LLM_MODELS = [
    {
      id: "qwen3_1_7b",
      label: "Low",
      subtitle: "Qwen3 1.7B",
      fit: "8 GB RAM, CPU-heavy machines",
      size: "~1.1 GB",
    },
    {
      id: "qwen3_4b_instruct_2507",
      label: "Default",
      subtitle: "Qwen3 4B Instruct 2507",
      fit: "16 GB RAM or 8 GB+ VRAM",
      size: "~2.5 GB",
    },
    {
      id: "qwen3_14b",
      label: "High",
      subtitle: "Qwen3 14B",
      fit: "32 GB RAM or 16 GB+ VRAM",
      size: "~10.5 GB",
    },
  ];

  // Parakeet state
  let parakeetStatus = $state("Checking...");
  let parakeetOk = $state(false);

  // Audio device picker (Settings → Audio → Microphone)
  let audioDevices = $state([]);
  let audioDevicesError = $state(null);

  // ALSA enumeration leaks raw device strings (hw:, plughw:, front:,
  // sysdefault:, back:, surround:, iec958:, dmix:, usbstream:, plus a
  // bogus "null" device). These are kernel-level aliases — no user
  // needs to pick between "hw:CARD=2,DEV=0" and "plughw:CARD=2,DEV=0".
  //
  // The strategy: keep a small set of well-known sentinel devices
  // (default/pipewire/pulse), then pull a single entry per unique
  // sound card by parsing CARD=X from the sysdefault: alias. That
  // gives us "Microphones" / "C920" / "Generic" as friendly labels
  // while mapping them to a reliable ALSA path.
  const SENTINEL_DEVICES = new Set(["default", "pipewire", "pulse"]);

  function parseCardName(name) {
    const match = String(name || "").match(/CARD=([^,]+)/);
    return match ? match[1] : null;
  }

  function buildVisibleDevices(devices) {
    const out = [];
    const seenCards = new Set();

    for (const dev of devices) {
      const name = dev?.name || "";
      if (!name || name === "null") continue;
      if (SENTINEL_DEVICES.has(name)) {
        out.push(dev);
        continue;
      }
      if (name.startsWith("sysdefault:CARD=")) {
        const card = parseCardName(name);
        if (card && !seenCards.has(card)) {
          seenCards.add(card);
          out.push(dev);
        }
      }
      // Everything else (hw:, plughw:, front:, dmix:, etc.) is silently
      // dropped — cpal will resolve the sysdefault:CARD= form fine.
    }
    return out;
  }

  function friendlyLabel(dev) {
    const name = dev?.name || "";
    if (name === "default") return "System default";
    if (name === "pipewire") return "PipeWire";
    if (name === "pulse") return "PulseAudio";
    // Prefer the rich product description from /proc/asound/cards
    // (e.g. "Blue Microphones" for the Yeti). Falls back to the raw
    // CARD=X short name if we couldn't load descriptions.
    const desc = (dev?.description || "").trim();
    if (desc) return desc;
    const card = parseCardName(name);
    if (card) return card;
    return name;
  }

  let visibleAudioDevices = $derived(buildVisibleDevices(audioDevices));

  async function refreshAudioDevices() {
    audioDevicesError = null;
    try {
      audioDevices = await invoke("list_audio_devices");
    } catch (err) {
      audioDevicesError = "Could not enumerate audio devices: " + (err?.message || err);
      audioDevices = [];
    }
  }

  // --- Per-profile vocabulary (Task 15) ---
  // Terms and the profile's initial_prompt travel with the active profile.
  // The Rust side (Task 13) falls back to profile.initial_prompt whenever
  // the invoke payload's initialPrompt is empty.
  let vocabulary = $state([]);
  let vocabularyError = $state(null);
  let newVocabTerm = $state("");
  let newVocabNote = $state("");
  let showBulkVocab = $state(false);
  let bulkVocabText = $state("");
  let bulkVocabBusy = $state(false);

  // Draft held locally so the textarea doesn't thrash the store on every
  // keystroke. Saved on blur or explicit save.
  let initialPromptDraft = $state("");
  let initialPromptDirty = $state(false);
  let profileRenameDraft = $state("");
  let showNewVocabProfile = $state(false);
  let newVocabProfileName = $state("");
  let newVocabProfilePrompt = $state("");

  async function refreshVocabulary() {
    vocabularyError = null;
    try {
      const profileId = profilesStore.activeProfileId;
      vocabulary = await profilesStore.listTerms(profileId);
    } catch (err) {
      vocabularyError = "Could not load vocabulary: " + (err?.message || err);
    }
  }

  async function addVocabTerm() {
    const term = newVocabTerm.trim();
    if (!term) return;
    try {
      await profilesStore.addTerm(
        profilesStore.activeProfileId,
        term,
        newVocabNote.trim(),
      );
      newVocabTerm = "";
      newVocabNote = "";
      await refreshVocabulary();
    } catch (err) {
      vocabularyError = "Could not save term: " + (err?.message || err);
    }
  }

  async function addBulkVocabTerms() {
    const raw = bulkVocabText;
    // Accept newline-separated OR comma-separated (or mixed) — whichever the
    // user pasted. Trim each entry, drop empties, and dedupe case-insensitively
    // so "ACME" and "acme" in the same paste collapse to a single term
    // (Whisper prompts don't care about case).
    const seen = new Set();
    const candidates = [];
    for (const entry of raw.split(/[\n,]+/)) {
      const trimmed = entry.trim();
      if (!trimmed) continue;
      const key = trimmed.toLowerCase();
      if (seen.has(key)) continue;
      seen.add(key);
      candidates.push(trimmed);
    }
    if (candidates.length === 0) {
      vocabularyError = "Nothing to import — paste one term per line or separated by commas.";
      return;
    }

    // Skip terms the profile already has (case-insensitive — Whisper prompts
    // don't care about case, and duplicates pollute the Terms list).
    const existing = new Set(vocabulary.map((row) => row.term.toLowerCase()));
    const toAdd = candidates.filter((term) => !existing.has(term.toLowerCase()));
    const skipped = candidates.length - toAdd.length;

    bulkVocabBusy = true;
    vocabularyError = null;
    const failed = [];
    try {
      for (const term of toAdd) {
        try {
          await profilesStore.addTerm(profilesStore.activeProfileId, term, "");
        } catch (err) {
          failed.push({ term, message: err?.message || String(err) });
        }
      }
    } finally {
      bulkVocabBusy = false;
    }

    await refreshVocabulary();
    bulkVocabText = "";
    showBulkVocab = false;

    const addedCount = toAdd.length - failed.length;
    const parts = [];
    if (addedCount > 0) parts.push(`Added ${addedCount}`);
    if (skipped > 0) parts.push(`skipped ${skipped} duplicate${skipped === 1 ? "" : "s"}`);
    if (failed.length > 0) parts.push(`${failed.length} failed`);
    if (failed.length > 0) {
      vocabularyError = `Some terms failed: ${failed.map((f) => f.term).join(", ")}`;
    }
    if (parts.length > 0) {
      toasts.info("Vocabulary import", parts.join(" · "));
    }
  }

  async function deleteVocabTerm(id) {
    try {
      await profilesStore.deleteTerm(id);
      await refreshVocabulary();
    } catch (err) {
      vocabularyError = "Could not delete term: " + (err?.message || err);
    }
  }

  // Sync the initial-prompt draft + term list when the active profile flips.
  $effect(() => {
    const active = profilesStore.active;
    initialPromptDraft = active?.initialPrompt ?? "";
    initialPromptDirty = false;
    profileRenameDraft = active?.name ?? "";
    // Refresh terms whenever the active profile id changes.
    void profilesStore.activeProfileId;
    refreshVocabulary();
  });

  function onActiveProfileChange(e) {
    const id = e.target.value;
    profilesStore.setActive(id);
  }

  async function saveInitialPrompt() {
    if (!initialPromptDirty) return;
    const active = profilesStore.active;
    if (!active) return;
    await profilesStore.update(active.id, active.name, initialPromptDraft);
    initialPromptDirty = false;
  }

  async function renameActiveProfile() {
    const active = profilesStore.active;
    if (!active) return;
    const name = profileRenameDraft.trim();
    if (!name || name === active.name) {
      profileRenameDraft = active.name;
      return;
    }
    await profilesStore.update(active.id, name, active.initialPrompt);
  }

  async function createVocabProfile() {
    const name = newVocabProfileName.trim();
    if (!name) return;
    const created = await profilesStore.create(name, newVocabProfilePrompt.trim());
    if (created) {
      profilesStore.setActive(created.id);
      newVocabProfileName = "";
      newVocabProfilePrompt = "";
      showNewVocabProfile = false;
    }
  }

  async function deleteActiveProfile() {
    const active = profilesStore.active;
    if (!active || active.id === DEFAULT_PROFILE_ID) return;
    await profilesStore.delete(active.id);
  }

  // --- Diagnostics (Settings → About → Generate diagnostic report) ---
  // Layer 2 of the diagnostics plan: user previews exactly what would be
  // shared, then chooses to copy / save. Nothing leaves the machine
  // automatically.
  let diagnosticReport = $state("");
  let diagnosticReportError = $state(null);
  let diagnosticReportSavedTo = $state(null);
  let diagnosticReportLoading = $state(false);

  async function generateDiagnosticReport() {
    diagnosticReportError = null;
    diagnosticReportSavedTo = null;
    diagnosticReportLoading = true;
    try {
      diagnosticReport = await invoke("generate_diagnostic_report", {
        options: {
          includeRecentErrors: true,
          includeCrashes: true,
          includeSettings: true,
          includeLogTail: true,
        },
      });
    } catch (err) {
      diagnosticReportError = "Could not generate report: " + (err?.message || err);
    } finally {
      diagnosticReportLoading = false;
    }
  }

  async function copyDiagnosticReport() {
    if (!diagnosticReport) return;
    try {
      await navigator.clipboard.writeText(diagnosticReport);
      diagnosticReportSavedTo = "Copied to clipboard.";
    } catch (err) {
      diagnosticReportError = "Clipboard copy failed: " + (err?.message || err);
    }
  }

  async function saveDiagnosticReport() {
    diagnosticReportError = null;
    try {
      const path = await invoke("save_diagnostic_report", {
        options: {
          includeRecentErrors: true,
          includeCrashes: true,
          includeSettings: true,
          includeLogTail: true,
        },
      });
      diagnosticReportSavedTo = "Saved to " + path;
    } catch (err) {
      diagnosticReportError = "Save failed: " + (err?.message || err);
    }
  }

  let parakeetDownloaded = $state(false);
  let parakeetDownloading = $state(false);
  let parakeetProgress = $state(0);
  let unlistenParakeet = null;

  // Profiles & Templates
  let showProfiles = $state(false);
  let showTemplates = $state(false);
  let editingProfile = $state(-1);
  let editingTemplate = $state(-1);
  let newProfileName = $state("");
  let newTemplateName = $state("");
  let showNewProfile = $state(false);
  let showNewTemplate = $state(false);

  // Accordion state — first section open by default
  let openSection = $state('transcription');
  let settingsTextFont = $derived(pretextFontShorthand(prefs.accessibility, 11));
  let settingsPathLineHeight = $derived(bodyPretextLineHeight(prefs.accessibility, 11));
  let outputFolderPreview = $derived.by(() => {
    const text = settings.outputFolder || "Default (app data)";
    if (!text) return "";
    if (outputFolderWidth <= 0) {
      return text.length > 80 ? `${text.slice(0, 79)}…` : text;
    }
    return clampTextLines(
      text,
      settingsTextFont,
      Math.max(120, outputFolderWidth - 24),
      settingsPathLineHeight,
      2,
    ).text;
  });

  function whisperModelId(size) {
    const map = {
      Tiny: "whisper-tiny-en",
      Base: "whisper-base-en",
      Small: "whisper-small-en",
      "Distil-S": "whisper-distil-small-en",
      Medium: "whisper-medium-en",
      "Distil-L": "whisper-distil-large-v3",
    };
    return map[size] || "whisper-base-en";
  }

  function selectedModelId() {
    return settings.engine === "parakeet"
      ? "parakeet-ctc-0.6b-int8"
      : whisperModelId(settings.modelSize);
  }

  function engineCapabilities(engineId) {
    return runtimeCapabilities?.engines?.find((engine) => engine.id === engineId) || null;
  }

  function selectedModelCapabilities() {
    return engineCapabilities(settings.engine)?.models?.find((model) => model.id === selectedModelId()) || null;
  }

  function whisperModelCapabilities(size) {
    return engineCapabilities("whisper")?.models?.find((model) => model.id === whisperModelId(size)) || null;
  }

  function currentModelIsEnglishOnly() {
    return selectedModelCapabilities()?.languageSupport?.kind === "english-only";
  }

  function hasGpuAcceleration() {
    return (runtimeCapabilities?.accelerators || []).some((accelerator) => accelerator !== "cpu");
  }

  async function refreshRuntimeCapabilities() {
    runtimeCapabilities = await invoke("get_runtime_capabilities");
  }

  function selectedLlmModelId() {
    return settings.llmModelId || "qwen3_4b_instruct_2507";
  }

  function llmModelStatus(modelId) {
    return llmStatuses[modelId] || null;
  }

  function llmModelDownloaded(modelId) {
    return !!llmModelStatus(modelId)?.downloaded;
  }

  function llmModelLoaded(modelId) {
    return !!llmModelStatus(modelId)?.loaded;
  }

  function llmHardwareWarning(modelId) {
    const ramMb = systemInfo?.ram_mb || 0;
    if (modelId === "qwen3_14b" && ramMb < 32768) {
      return "High tier will swap heavily on this machine. Expect slow responses.";
    }
    if (modelId === "qwen3_4b_instruct_2507" && ramMb < 16384 && !hasGpuAcceleration()) {
      return "Default tier is best with 16 GB RAM or a GPU-backed build.";
    }
    return "";
  }

  function llmTierAvailable(modelId) {
    const ramMb = systemInfo?.ram_mb || 0;
    if (modelId === "qwen3_14b") return ramMb >= 32768;
    if (modelId === "qwen3_4b_instruct_2507") return ramMb >= 16384 || hasGpuAcceleration();
    return true;
  }

  async function ensureRecommendedLlmTier() {
    if (settings.llmModelId) return;
    try {
      settings.llmModelId = await invoke("recommend_llm_tier");
    } catch {
      settings.llmModelId = "qwen3_4b_instruct_2507";
    }
  }

  async function refreshLlmStatus() {
    const statuses = {};
    for (const model of LLM_MODELS) {
      try {
        statuses[model.id] = await invoke("check_llm_model", { modelId: model.id });
      } catch {}
    }
    llmStatuses = statuses;
    llmLoaded = await invoke("get_llm_status").catch(() => false);
    const selected = llmModelStatus(selectedLlmModelId());
    llmStatus = selected?.loaded
      ? `${selected.displayName} loaded`
      : selected?.downloaded
        ? `${selected.displayName} downloaded`
        : "No LLM model downloaded";
  }

  async function downloadSelectedLlmModel() {
    const modelId = selectedLlmModelId();
    llmDownloadingModel = modelId;
    llmDownloadProgress = 0;
    llmStatus = "Downloading...";
    try {
      await invoke("download_llm_model", { modelId });
      llmDownloadingModel = "";
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
      llmStatus = "Download complete";
    } catch (err) {
      llmDownloadingModel = "";
      llmStatus = typeof err === "string" ? err : "LLM download failed";
    }
  }

  async function loadSelectedLlmModel() {
    const modelId = selectedLlmModelId();
    llmStatus = "Loading...";
    try {
      await invoke("load_llm_model", { modelId });
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
    } catch (err) {
      llmStatus = typeof err === "string" ? err : "LLM load failed";
    }
  }

  async function unloadLlmModel() {
    try {
      await invoke("unload_llm_model");
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
      llmStatus = "Model unloaded";
    } catch (err) {
      llmStatus = typeof err === "string" ? err : "LLM unload failed";
    }
  }

  async function deleteSelectedLlmModel() {
    const modelId = selectedLlmModelId();
    try {
      await invoke("delete_llm_model", { modelId });
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
      llmStatus = "Downloaded model removed";
    } catch (err) {
      llmStatus = typeof err === "string" ? err : "Delete failed";
    }
  }

  async function setAiTier(nextTier) {
    settings.aiTier = nextTier;
    if (nextTier === "off") {
      await unloadLlmModel();
      return;
    }

    if (llmModelDownloaded(selectedLlmModelId())) {
      await loadSelectedLlmModel();
    } else {
      llmStatus = "Download a model to enable AI features.";
    }
  }

  async function selectLlmModel(modelId) {
    settings.llmModelId = modelId;
    if (llmLoaded) {
      await unloadLlmModel();
    } else {
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
    }
    llmStatus = llmModelDownloaded(modelId)
      ? "Selected model changed. Load it to enable AI features."
      : "Selected model changed. Download it to enable AI features.";
  }

  async function toggleAiSection() {
    openSection = openSection === 'ai' ? null : 'ai';
    if (openSection === 'ai') {
      await ensureRecommendedLlmTier();
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
    }
  }

  onMount(async () => {
    try {
      await refreshRuntimeCapabilities();
      systemInfo = await invoke("probe_system").catch(() => null);
      await ensureRecommendedLlmTier();
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
      const loaded = await invoke("check_engine");
      engineOk = loaded;
      engineStatus = loaded ? "Model loaded" : "No model loaded";
    } catch {
      engineStatus = "Engine not ready";
    }

    // Populate audio device list so the Microphone picker is ready when
    // the user opens the Audio section.
    refreshAudioDevices();

    // Vocabulary is loaded reactively via the $effect that tracks the
    // active profile id (set once profilesStore.load() resolves in the
    // root layout). No eager fetch needed here.

    try {
      downloadedModels = await invoke("list_models");
    } catch {}

    try {
      pasteBackends = (await invoke("detect_paste_backends")) || [];
    } catch {
      pasteBackends = [];
    }

    // Parakeet status
    try {
      parakeetOk = await invoke("check_parakeet_engine");
      parakeetDownloaded = await invoke("check_parakeet_model", { name: "ctc-int8" });
      parakeetStatus = parakeetOk ? "Model loaded" : parakeetDownloaded ? "Downloaded (not loaded)" : "Not downloaded";
    } catch {
      parakeetStatus = "Engine not ready";
    }

    unlisten = await listen("model-download-progress", (event) => {
      downloadProgress = event.payload.percent || event.payload.progress || 0;
    });

    unlistenLlm = await listen("kon:llm-download-progress", (event) => {
      llmDownloadProgress = event.payload.percent || 0;
      llmDownloadingModel = event.payload.modelId || llmDownloadingModel;
    });

    unlistenParakeet = await listen("parakeet-download-progress", (event) => {
      parakeetProgress = event.payload.percent || event.payload.progress || 0;
    });
  });

  onDestroy(() => {
    if (unlisten) unlisten();
    if (unlistenLlm) unlistenLlm();
    if (unlistenParakeet) unlistenParakeet();
  });

  $effect(() => {
    if (!outputFolderEl) return;
    const ro = new ResizeObserver((entries) => {
      for (const entry of entries) {
        outputFolderWidth = entry.contentRect.width;
      }
    });
    ro.observe(outputFolderEl);
    return () => ro.disconnect();
  });

  // Auto-save on any settings change.
  // JSON.stringify subscribes to all properties on the reactive object.
  // Safe because `settings` only holds persistent preferences — no ephemeral state.
  $effect(() => {
    void JSON.stringify(settings);
    saveSettings();
  });


  $effect(() => {
    settings.engine;
    settings.modelSize;
    if (currentModelIsEnglishOnly() && settings.language !== "en") {
      settings.language = "en";
    }
    if (!hasGpuAcceleration() && settings.device !== "auto") {
      settings.device = "auto";
    }
  });

  async function downloadModel(size) {
    downloadingModel = size;
    downloadProgress = 0;
    try {
      await invoke("download_model", { size });
      downloadedModels = await invoke("list_models");
      await refreshRuntimeCapabilities();
      downloadingModel = "";
    } catch (err) {
      downloadingModel = "";
      engineStatus = typeof err === "string" ? err : "Download failed";
    }
  }

  async function loadSelectedModel() {
    const size = whisperModelId(settings.modelSize);
    engineStatus = "Loading...";
    engineOk = false;
    try {
      await invoke("load_model", { size });
      await refreshRuntimeCapabilities();
      engineOk = true;
      engineStatus = `${settings.modelSize} model loaded`;
    } catch (err) {
      engineOk = false;
      engineStatus = typeof err === "string" ? err : "Load failed";
    }
  }

  function isModelDownloaded(size) {
    const runtimeModel = whisperModelCapabilities(size);
    if (runtimeModel) {
      return runtimeModel.downloaded;
    }
    return downloadedModels.some((model) => model.toLowerCase() === size.toLowerCase());
  }

  function isModelLoaded(size) {
    const runtimeModel = whisperModelCapabilities(size);
    if (runtimeModel) {
      return runtimeModel.loaded;
    }
    return runtimeCapabilities?.engines?.some(
      (engine) => engine.id === "whisper" && engine.loadedModelId === whisperModelId(size),
    ) || false;
  }

  const modelDescriptions = {
    Tiny: "~75MB · fastest, lower accuracy",
    Base: "~150MB · balanced for most use",
    Small: "~500MB · noticeably more accurate",
    "Distil-S": "~336MB · small-level accuracy at ~6× the speed",
    Medium: "~1.5GB · best Whisper accuracy, slower",
    "Distil-L": "~1.55GB · near-large accuracy at ~6× the speed",
  };

  async function downloadParakeet() {
    parakeetDownloading = true;
    parakeetProgress = 0;
    try {
      await invoke("download_parakeet_model", { name: "ctc-int8" });
      await refreshRuntimeCapabilities();
      parakeetDownloaded = true;
      parakeetDownloading = false;
      parakeetStatus = "Downloaded (not loaded)";
    } catch (err) {
      parakeetDownloading = false;
      parakeetStatus = typeof err === "string" ? err : "Download failed";
    }
  }

  async function loadParakeet() {
    parakeetStatus = "Loading...";
    parakeetOk = false;
    try {
      await invoke("load_parakeet_model", { name: "ctc-int8" });
      await refreshRuntimeCapabilities();
      parakeetOk = true;
      parakeetStatus = "Model loaded";
    } catch (err) {
      parakeetOk = false;
      parakeetStatus = typeof err === "string" ? err : "Load failed";
    }
  }

  // --- Profile management ---
  function createProfile() {
    if (!newProfileName.trim()) return;
    const name = newProfileName.trim();
    profiles.push({ name, words: "" });
    saveProfiles();
    addProfileTaskList(name);
    newProfileName = "";
    showNewProfile = false;
    editingProfile = profiles.length - 1;
  }

  function deleteProfile(index) {
    const name = profiles[index].name;
    if (page.activeProfile === name) {
      page.activeProfile = "None";
    }
    removeProfileTaskList(name);
    profiles.splice(index, 1);
    saveProfiles();
    editingProfile = -1;
  }

  function profileWordCount(words) {
    return words ? words.split("\n").filter((w) => w.trim()).length : 0;
  }

  // --- Template management ---
  function createTemplate() {
    if (!newTemplateName.trim()) return;
    templates.push({ name: newTemplateName.trim(), sections: ["Section 1", "Section 2", "Section 3"] });
    saveTemplates();
    newTemplateName = "";
    showNewTemplate = false;
    editingTemplate = templates.length - 1;
  }

  function deleteTemplate(index) {
    templates.splice(index, 1);
    saveTemplates();
    editingTemplate = -1;
  }
</script>

<div class="flex flex-col h-full overflow-y-auto animate-fade-in">
  <!-- Title -->
  <h2 class="font-display text-[26px] italic text-text px-7 pt-6 pb-5">Settings</h2>

  <div class="px-7 pb-8">
    <Card>
      <!-- Audio (microphone selection) -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'audio' ? null : 'audio'}
        >
          <h3 class="font-display text-[18px] italic text-text">Audio</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'audio' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'audio'}
          <div class="px-5 pb-5 animate-fade-in">
            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Microphone</p>
              <div class="flex items-center gap-3">
                <select
                  class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]
                         appearance-none cursor-pointer min-w-[280px] max-w-full"
                  bind:value={settings.microphoneDevice}
                  onfocus={refreshAudioDevices}
                >
                  <option value="">Auto (recommended) — let Kon pick the working mic</option>
                  {#each visibleAudioDevices as dev}
                    <option value={dev.name} disabled={dev.is_likely_monitor}>
                      {friendlyLabel(dev)}{#if dev.is_default && dev.name !== "default"} (system default){/if}{#if dev.is_likely_monitor} — speaker monitor, skip{/if}
                    </option>
                  {/each}
                </select>
                <button
                  class="px-3 py-2 text-[12px] text-text-secondary border border-border rounded-lg hover:border-accent hover:text-text"
                  onclick={refreshAudioDevices}
                  type="button"
                >Refresh</button>
              </div>
              {#if audioDevicesError}
                <p class="text-[11px] text-error mt-2">{audioDevicesError}</p>
              {:else if visibleAudioDevices.length === 0}
                <p class="text-[11px] text-text-tertiary mt-2">No input devices detected. Check that a microphone is connected and PulseAudio/PipeWire is running.</p>
              {:else}
                <p class="text-[11px] text-text-tertiary mt-2">
                  Auto mode tries the system default first, then any other real input. Speaker-monitor sources (loopback) are skipped because they record system audio rather than the microphone. If dictation is silent, pick the device explicitly here.
                </p>
              {/if}
            </div>
          </div>
        {/if}
      </div>

      <!-- Vocabulary — profile-scoped (Task 15) -->
      <!-- Terms and the initial prompt travel with the active profile.
           The default profile can't be deleted, only edited. -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'vocabulary' ? null : 'vocabulary'}
        >
          <h3 class="font-display text-[18px] italic text-text">Vocabulary</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'vocabulary' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'vocabulary'}
          <div class="px-5 pb-5 animate-fade-in">
            <p class="text-[12px] text-text-tertiary mb-4">
              Words and phrases the AI cleanup pass should preserve exactly. Useful for medication names, place names, jargon, names of people in your support network, anything Whisper tends to mishear. Vocabulary is scoped to a profile — switch profiles to swap whole vocabularies.
            </p>

            <!-- Profile selector -->
            <div class="mb-5">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Active Profile</p>
              <div class="flex items-center gap-2 flex-wrap">
                <select
                  class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]
                         appearance-none cursor-pointer min-w-[220px]"
                  value={profilesStore.activeProfileId}
                  onchange={onActiveProfileChange}
                >
                  {#each profilesStore.profiles as profile (profile.id)}
                    <option value={profile.id}>{profile.name}</option>
                  {/each}
                </select>
                <button
                  type="button"
                  class="px-3 py-2 text-[12px] text-text-secondary border border-border rounded-lg hover:border-accent hover:text-text"
                  onclick={() => { showNewVocabProfile = !showNewVocabProfile; }}
                >{showNewVocabProfile ? "Cancel" : "New profile"}</button>
                <button
                  type="button"
                  class="px-3 py-2 text-[12px] text-text-secondary border border-border rounded-lg
                         hover:border-error hover:text-error
                         disabled:opacity-40 disabled:cursor-not-allowed disabled:hover:border-border disabled:hover:text-text-secondary"
                  disabled={profilesStore.activeProfileId === DEFAULT_PROFILE_ID}
                  onclick={deleteActiveProfile}
                  title={profilesStore.activeProfileId === DEFAULT_PROFILE_ID ? "The default profile cannot be deleted" : "Delete this profile"}
                >Delete profile</button>
              </div>

              {#if showNewVocabProfile}
                <div class="mt-3 p-3 border border-border-subtle rounded-lg bg-bg-input animate-fade-in">
                  <div class="flex flex-col gap-2">
                    <input
                      type="text"
                      placeholder="Profile name (e.g. Medical notes, Podcast)"
                      bind:value={newVocabProfileName}
                      onkeydown={(e) => { if (e.key === 'Enter') createVocabProfile(); }}
                      class="bg-bg border border-border rounded-lg px-3 py-2 text-[13px] text-text
                             focus:outline-none focus:border-accent"
                    />
                    <textarea
                      placeholder="Initial prompt (optional) — extra context Whisper primes on before every session in this profile"
                      bind:value={newVocabProfilePrompt}
                      class="bg-bg border border-border rounded-lg px-3 py-2 text-[12px] text-text resize-none h-[72px]
                             focus:outline-none focus:border-accent"
                    ></textarea>
                    <div class="flex gap-2">
                      <button
                        type="button"
                        onclick={createVocabProfile}
                        disabled={!newVocabProfileName.trim()}
                        class="px-4 py-2 text-[13px] bg-accent text-bg rounded-lg disabled:opacity-50 disabled:cursor-not-allowed hover:bg-accent-hover"
                      >Create</button>
                      <button
                        type="button"
                        onclick={() => { showNewVocabProfile = false; newVocabProfileName = ""; newVocabProfilePrompt = ""; }}
                        class="px-3 py-2 text-[12px] text-text-secondary"
                      >Cancel</button>
                    </div>
                  </div>
                </div>
              {/if}
            </div>

            {#if profilesStore.active}
              <!-- Rename active profile -->
              <div class="mb-5">
                <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Profile Name</p>
                <input
                  type="text"
                  bind:value={profileRenameDraft}
                  onblur={renameActiveProfile}
                  onkeydown={(e) => { if (e.key === 'Enter') e.target.blur(); }}
                  class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text min-w-[280px]
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]"
                />
              </div>

              <!-- Initial prompt textarea -->
              <div class="mb-5">
                <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Initial Prompt</p>
                <p class="text-[11px] text-text-tertiary mb-2">
                  Passed to Whisper before every transcription in this profile. Used as a biasing prompt — keep it short and topic-specific (names, domain terms, tone cues).
                </p>
                <textarea
                  bind:value={initialPromptDraft}
                  oninput={() => { initialPromptDirty = true; }}
                  onblur={saveInitialPrompt}
                  placeholder="e.g. Meeting between Jake and Wren about CORBEL's Furnished World architecture."
                  class="w-full h-[96px] bg-bg-input border border-border rounded-lg px-3 py-2 text-[12px] text-text resize-none
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]"
                ></textarea>
                <div class="flex items-center gap-3 mt-1">
                  {#if initialPromptDirty}
                    <button
                      type="button"
                      onclick={saveInitialPrompt}
                      class="text-[11px] text-accent hover:text-accent-hover"
                    >Save prompt</button>
                    <span class="text-[11px] text-text-tertiary">Unsaved changes — saves on blur.</span>
                  {:else}
                    <span class="text-[11px] text-text-tertiary">Saved.</span>
                  {/if}
                </div>
              </div>

              <!-- Terms -->
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Terms</p>

              <div class="flex gap-2 mb-4">
                <input
                  type="text"
                  placeholder="Term (e.g. methylphenidate, Wren, Tartarus)"
                  bind:value={newVocabTerm}
                  onkeydown={(e) => { if (e.key === 'Enter') addVocabTerm(); }}
                  class="flex-1 bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]"
                />
                <input
                  type="text"
                  placeholder="Note (optional)"
                  bind:value={newVocabNote}
                  onkeydown={(e) => { if (e.key === 'Enter') addVocabTerm(); }}
                  class="flex-1 bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]"
                />
                <button
                  type="button"
                  onclick={addVocabTerm}
                  disabled={!newVocabTerm.trim()}
                  class="px-4 py-2 text-[13px] bg-accent text-bg rounded-lg disabled:opacity-50 disabled:cursor-not-allowed hover:bg-accent-hover"
                >Add</button>
              </div>

              <!-- Bulk import — one term per line or comma-separated. -->
              <div class="mb-4">
                {#if !showBulkVocab}
                  <button
                    type="button"
                    class="text-[11px] text-text-tertiary hover:text-accent underline"
                    onclick={() => { showBulkVocab = true; }}
                  >Bulk add from a list…</button>
                {:else}
                  <div class="p-3 bg-bg-input border border-border-subtle rounded-lg animate-fade-in">
                    <textarea
                      bind:value={bulkVocabText}
                      placeholder="Paste terms — one per line, or separated by commas. Duplicates are skipped automatically."
                      rows="4"
                      disabled={bulkVocabBusy}
                      class="w-full bg-bg border border-border rounded-lg px-3 py-2 text-[13px] text-text font-mono
                             focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]
                             disabled:opacity-50 resize-y"
                    ></textarea>
                    <div class="flex items-center gap-2 mt-2">
                      <button
                        type="button"
                        onclick={addBulkVocabTerms}
                        disabled={bulkVocabBusy || !bulkVocabText.trim()}
                        class="px-3 py-1.5 text-[12px] bg-accent text-bg rounded-lg disabled:opacity-50 disabled:cursor-not-allowed hover:bg-accent-hover"
                      >{bulkVocabBusy ? "Importing…" : "Import"}</button>
                      <button
                        type="button"
                        onclick={() => { showBulkVocab = false; bulkVocabText = ""; }}
                        disabled={bulkVocabBusy}
                        class="px-3 py-1.5 text-[12px] text-text-tertiary hover:text-text"
                      >Cancel</button>
                    </div>
                  </div>
                {/if}
              </div>

              {#if vocabularyError}
                <p class="text-[11px] text-error mb-3">{vocabularyError}</p>
              {/if}

              {#if vocabulary.length === 0}
                <p class="text-[11px] text-text-tertiary italic">No terms yet. Add one above.</p>
              {:else}
                <ul class="space-y-1">
                  {#each vocabulary as entry (entry.id)}
                    <li class="flex items-center gap-3 py-2 px-3 bg-bg-input border border-border rounded-lg">
                      <div class="flex-1 min-w-0">
                        <div class="text-[13px] text-text font-medium truncate">{entry.term}</div>
                        {#if entry.note}
                          <div class="text-[11px] text-text-tertiary truncate">{entry.note}</div>
                        {/if}
                      </div>
                      <button
                        type="button"
                        onclick={() => deleteVocabTerm(entry.id)}
                        class="text-[12px] text-text-tertiary hover:text-error border border-border hover:border-error rounded px-2 py-1"
                        aria-label="Delete {entry.term}"
                      >Remove</button>
                    </li>
                  {/each}
                </ul>
              {/if}
            {:else}
              <p class="text-[11px] text-text-tertiary italic">Loading profiles…</p>
            {/if}
          </div>
        {/if}
      </div>

      <!-- Transcription -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'transcription' ? null : 'transcription'}
        >
          <h3 class="font-display text-[18px] italic text-text">Transcription</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'transcription' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'transcription'}
          <div class="px-5 pb-5 animate-fade-in">

            <!-- Engine selector -->
            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Engine</p>
              <SegmentedButton options={["whisper", "parakeet"]} bind:value={settings.engine} />
              <p class="text-[11px] text-text-tertiary mt-2">
                {settings.engine === "whisper"
                  ? "Whisper with the currently shipped English-only models in this build"
                  : "Parakeet CTC 0.6B — English-only, fast when the model is installed"}
              </p>
            </div>

            <!-- Format mode -->
            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Format Mode</p>
              <SegmentedButton options={["Raw", "Clean", "Smart"]} bind:value={settings.formatMode} />
              <p class="text-[11px] text-text-tertiary mt-2">
                {settings.formatMode === "Raw" ? "Exact Whisper output, no formatting" :
                 settings.formatMode === "Clean" ? "Grouped into paragraphs, punctuation tidied" :
                 "Structured with lists, headings, and sections"}
              </p>
            </div>

            <!-- Engine-specific model management -->
            {#if settings.engine === "whisper"}
              <div class="mb-6">
                <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Whisper Model</p>
                <SegmentedButton options={["Tiny", "Base", "Small", "Distil-S", "Medium", "Distil-L"]} bind:value={settings.modelSize} />
                <p class="text-[11px] text-text-tertiary mt-2">{modelDescriptions[settings.modelSize]}</p>

                <div class="flex items-center gap-2 mt-3">
                  {#if isModelLoaded(settings.modelSize)}
                    <span class="inline-flex items-center gap-1.5 text-[11px] text-success">
                      <span class="w-[6px] h-[6px] rounded-full bg-success"></span>
                      Model loaded
                    </span>
                  {:else if isModelDownloaded(settings.modelSize)}
                    <span class="inline-flex items-center gap-1.5 text-[11px] text-success">
                      <span class="w-[6px] h-[6px] rounded-full bg-success"></span>
                      Downloaded
                    </span>
                    <button
                      class="text-[11px] text-text-tertiary hover:text-accent"
                      onclick={loadSelectedModel}
                    >Load model</button>
                  {:else if downloadingModel === whisperModelId(settings.modelSize)}
                    <span class="text-[11px] text-warning">{downloadProgress}% downloading...</span>
                  {:else}
                    <button
                      class="text-[11px] text-accent hover:text-accent-hover"
                      onclick={() => downloadModel(whisperModelId(settings.modelSize))}
                    >Download {settings.modelSize}</button>
                  {/if}
                </div>
              </div>
            {:else}
              <div class="mb-6">
                <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Parakeet Model</p>
                <p class="text-[11px] text-text-tertiary mb-3">Parakeet CTC 0.6B (int8) — ~613MB, near-instant transcription</p>

                <div class="flex items-center gap-2">
                  {#if parakeetOk}
                    <span class="inline-flex items-center gap-1.5 text-[11px] text-success">
                      <span class="w-[6px] h-[6px] rounded-full bg-success"></span>
                      Model loaded
                    </span>
                  {:else if parakeetDownloaded}
                    <span class="inline-flex items-center gap-1.5 text-[11px] text-text-secondary">
                      <span class="w-[6px] h-[6px] rounded-full bg-text-tertiary"></span>
                      Downloaded
                    </span>
                    <button
                      class="text-[11px] text-text-tertiary hover:text-accent"
                      onclick={loadParakeet}
                    >Load model</button>
                  {:else if parakeetDownloading}
                    <span class="text-[11px] text-warning">{parakeetProgress}% downloading...</span>
                  {:else}
                    <button
                      class="text-[11px] text-accent hover:text-accent-hover"
                      onclick={downloadParakeet}
                    >Download Parakeet</button>
                  {/if}
                </div>
              </div>
            {/if}

            <!-- Compute device -->
            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Compute Device</p>
              {#if hasGpuAcceleration()}
                <select
                  class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                         focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]
                         appearance-none cursor-pointer w-[220px]"
                  bind:value={settings.device}
                >
                  <option value="auto">Auto</option>
                  {#if runtimeCapabilities?.accelerators?.includes("cuda")}
                    <option value="cuda">CUDA (NVIDIA GPU)</option>
                  {/if}
                  {#if runtimeCapabilities?.accelerators?.includes("metal")}
                    <option value="metal">Metal (Apple GPU)</option>
                  {/if}
                  {#if runtimeCapabilities?.accelerators?.includes("vulkan")}
                    <option value="vulkan">Vulkan</option>
                  {/if}
                  <option value="cpu">CPU</option>
                </select>
                <p class="text-[11px] text-text-tertiary mt-2">Only accelerators built into this binary are shown here.</p>
              {:else}
                <div class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text w-[320px]">
                  This build is CPU-only. GPU controls appear in GPU-enabled builds.
                </div>
              {/if}
            </div>

            <!-- Language -->
            <div>
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Language</p>
              <div class="flex items-center gap-3">
                {#if currentModelIsEnglishOnly()}
                  <select
                    class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                           focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]
                           appearance-none cursor-not-allowed w-[220px]"
                    bind:value={settings.language}
                    disabled
                  >
                    <option value="en">English only</option>
                  </select>
                {:else}
                  <select
                    class="bg-bg-input border border-border rounded-lg px-3 py-2 text-[13px] text-text
                           focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(232,168,124,0.1)]
                           appearance-none cursor-pointer w-[140px]"
                    bind:value={settings.language}
                  >
                    <option value="en">English</option>
                    <option value="auto">Auto-detect</option>
                    <option value="fr">French</option>
                    <option value="de">German</option>
                    <option value="es">Spanish</option>
                    <option value="it">Italian</option>
                    <option value="pt">Portuguese</option>
                    <option value="nl">Dutch</option>
                    <option value="pl">Polish</option>
                    <option value="ja">Japanese</option>
                    <option value="ko">Korean</option>
                    <option value="zh">Chinese</option>
                  </select>
                {/if}
                {#if settings.language === "en"}
                  <button
                    class="flex items-center gap-1.5 px-2.5 py-1.5 rounded-full text-[11px] border animate-fade-in
                      {settings.britishEnglish
                        ? 'bg-accent/10 border-accent/30 text-accent font-medium'
                        : 'bg-bg-input border-border text-text-tertiary hover:text-text-secondary'}"
                    onclick={() => { settings.britishEnglish = !settings.britishEnglish; }}
                    title={settings.britishEnglish ? "British English spelling active" : "Click to enable British English spelling"}
                  >
                    {#if settings.britishEnglish}
                      <Check class="w-3 h-3" strokeWidth={2.5} />
                    {/if}
                    British English
                  </button>
                {/if}
              </div>
              <p class="text-[11px] text-text-tertiary mt-2">
                {#if currentModelIsEnglishOnly()}
                  The selected model only supports English in this build.
                {:else}
                  Auto-detect is only meaningful with multilingual models.
                {/if}
              </p>
            </div>
          </div>
        {/if}
      </div>

      <!-- Processing -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'processing' ? null : 'processing'}
        >
          <h3 class="font-display text-[18px] italic text-text">Processing</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'processing' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'processing'}
          <div class="px-5 pb-5 animate-fade-in">
            <div class="space-y-0.5">
              <Toggle
                bind:checked={settings.removeFillers}
                label="Remove filler words"
                description="Strips um, uh, like, you know from output"
              />
              <Toggle
                bind:checked={settings.antiHallucination}
                label="Anti-hallucination shield"
                description="Detects phantom phrases Whisper generates during silence"
              />
            </div>
          </div>
        {/if}
      </div>

      <!-- AI Assistant -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={toggleAiSection}
        >
          <h3 class="font-display text-[18px] italic text-text">AI Assistant</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'ai' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'ai'}
          <div class="px-5 pb-5 animate-fade-in">
            <p class="text-[11px] text-text-tertiary mb-4">
              Local LLM for transcript cleanup, smart task extraction, and task breakdown. Runs fully offline after the model is downloaded.
            </p>

            <div class="mb-5">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Feature Tier</p>
              <div class="flex flex-wrap gap-2">
                <button
                  type="button"
                  class="px-3 py-2 rounded-lg border text-[12px] transition-colors
                    {settings.aiTier === 'off'
                      ? 'bg-bg-elevated border-accent text-text'
                      : 'bg-bg-input border-border text-text-tertiary hover:text-text'}"
                  onclick={() => setAiTier("off")}
                >Off</button>
                <button
                  type="button"
                  class="px-3 py-2 rounded-lg border text-[12px] transition-colors
                    {settings.aiTier === 'cleanup'
                      ? 'bg-bg-elevated border-accent text-text'
                      : 'bg-bg-input border-border text-text-tertiary hover:text-text'}"
                  onclick={() => setAiTier("cleanup")}
                >Cleanup only</button>
                <button
                  type="button"
                  class="px-3 py-2 rounded-lg border text-[12px] transition-colors
                    {settings.aiTier === 'tasks'
                      ? 'bg-bg-elevated border-accent text-text'
                      : 'bg-bg-input border-border text-text-tertiary hover:text-text'}"
                  onclick={() => setAiTier("tasks")}
                >Cleanup + Tasks</button>
              </div>
              <p class="text-[11px] text-text-tertiary mt-2">
                {settings.aiTier === "off"
                  ? "No local LLM calls. Kon falls back to the existing rule-based path."
                  : settings.aiTier === "cleanup"
                    ? "Use the local model for transcript cleanup and formatting."
                    : "Use the local model for cleanup, task extraction, and task breakdown."}
              </p>
            </div>

            <div class="mb-5">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Model Tier</p>
              <div class="space-y-2">
                {#each LLM_MODELS as model}
                  <button
                    type="button"
                    class="w-full text-left rounded-lg border px-3 py-3 transition-colors
                      {selectedLlmModelId() === model.id
                        ? 'border-accent bg-bg-elevated'
                        : 'border-border bg-bg-input hover:border-accent/50'}
                      {llmTierAvailable(model.id) ? '' : 'opacity-70'}"
                    onclick={() => selectLlmModel(model.id)}
                  >
                    <div class="flex items-start justify-between gap-3">
                      <div>
                        <div class="flex items-center gap-2">
                          <span class="text-[12px] font-medium text-text">{model.label}</span>
                          <span class="text-[11px] text-text-secondary">{model.subtitle}</span>
                        </div>
                        <p class="text-[11px] text-text-tertiary mt-1">{model.size} · {model.fit}</p>
                        {#if llmHardwareWarning(model.id)}
                          <p class="text-[11px] text-warning mt-2">{llmHardwareWarning(model.id)}</p>
                        {/if}
                      </div>
                      <div class="text-right text-[11px]">
                        {#if llmModelLoaded(model.id)}
                          <span class="text-success">Loaded</span>
                        {:else if llmModelDownloaded(model.id)}
                          <span class="text-text-secondary">Downloaded</span>
                        {:else}
                          <span class="text-text-tertiary">Not downloaded</span>
                        {/if}
                      </div>
                    </div>
                  </button>
                {/each}
              </div>
            </div>

            <div class="bg-bg-input rounded-lg px-3 py-3 border border-border-subtle">
              <div class="flex items-center justify-between gap-3 flex-wrap">
                <div>
                  <p class="text-[12px] text-text-secondary font-medium">
                    {LLM_MODELS.find((model) => model.id === selectedLlmModelId())?.subtitle || "Local model"}
                  </p>
                  <p class="text-[11px] text-text-tertiary mt-1">{llmStatus}</p>
                </div>

                <div class="flex items-center gap-2 flex-wrap">
                  {#if llmDownloadingModel === selectedLlmModelId()}
                    <span class="text-[11px] text-warning">{llmDownloadProgress}% downloading…</span>
                  {:else if !llmModelDownloaded(selectedLlmModelId())}
                    <button
                      type="button"
                      class="px-3 py-2 rounded-lg bg-accent text-bg text-[12px] hover:bg-accent-hover"
                      onclick={downloadSelectedLlmModel}
                    >Download</button>
                  {:else if !llmModelLoaded(selectedLlmModelId())}
                    <button
                      type="button"
                      class="px-3 py-2 rounded-lg bg-accent text-bg text-[12px] hover:bg-accent-hover"
                      onclick={loadSelectedLlmModel}
                    >Load</button>
                    <button
                      type="button"
                      class="px-3 py-2 rounded-lg border border-border text-[12px] text-text-secondary hover:text-text"
                      onclick={deleteSelectedLlmModel}
                    >Delete</button>
                  {:else}
                    <button
                      type="button"
                      class="px-3 py-2 rounded-lg border border-border text-[12px] text-text-secondary hover:text-text"
                      onclick={unloadLlmModel}
                    >Unload</button>
                    <button
                      type="button"
                      class="px-3 py-2 rounded-lg border border-border text-[12px] text-text-secondary hover:text-text"
                      onclick={deleteSelectedLlmModel}
                    >Delete</button>
                  {/if}
                </div>
              </div>

              <p class="text-[11px] text-text-tertiary mt-3">
                Recommended for this machine:
                <span class="text-text">
                  {LLM_MODELS.find((model) => model.id === (settings.llmModelId || "qwen3_4b_instruct_2507"))?.subtitle || "Qwen3 4B Instruct 2507"}
                </span>
                {#if systemInfo}
                  · {Math.round((systemInfo.ram_mb || 0) / 1024)} GB RAM detected
                {/if}
              </p>
            </div>
          </div>
        {/if}
      </div>

      <!-- Profiles & Templates -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'profiles' ? null : 'profiles'}
        >
          <h3 class="font-display text-[18px] italic text-text">Profiles & Templates</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'profiles' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'profiles'}
          <div class="px-5 pb-5 animate-fade-in">
            <!-- Profiles section -->
            <button
              class="flex items-center gap-2 w-full text-left mb-1"
              onclick={() => showProfiles = !showProfiles}
            >
              <ChevronRight class="w-3 h-3 text-text-tertiary transition-transform duration-[var(--duration-ui)] {showProfiles ? 'rotate-90' : ''}" />
              <h3 class="text-[14px] font-semibold text-text">Profiles</h3>
              <span class="text-[10px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-tertiary">
                {profiles.length}
              </span>
            </button>
            <p class="text-[11px] text-text-tertiary mb-3 ml-5">Custom vocabulary to improve transcription accuracy</p>

            {#if showProfiles}
              <div class="space-y-1.5 animate-fade-in ml-5">
                {#each profiles as profile, i}
                  <div class="group">
                    <div class="flex items-center gap-2 bg-bg-input rounded-lg px-3 h-[36px]">
                      <span class="text-[12px] text-text flex-1 truncate">{profile.name}</span>
                      <span class="text-[10px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-tertiary">
                        {profileWordCount(profile.words)} words
                      </span>
                      <button
                        class="text-[10px] text-text-tertiary hover:text-accent opacity-0 group-hover:opacity-100"
                        onclick={() => editingProfile = editingProfile === i ? -1 : i}
                      >{editingProfile === i ? "Close" : "Edit"}</button>
                      <button
                        class="text-[10px] text-text-tertiary hover:text-danger opacity-0 group-hover:opacity-100"
                        onclick={() => deleteProfile(i)}
                      >Delete</button>
                    </div>
                    {#if editingProfile === i}
                      <div class="mt-1.5 animate-fade-in">
	                        <textarea
	                          class="w-full h-[120px] bg-bg-elevated border border-border-subtle rounded-lg px-3 py-2
	                                 text-[12px] text-text resize-none
	                                 focus:outline-none focus:border-accent"
                          placeholder="One word or phrase per line..."
                          bind:value={profile.words}
                          oninput={() => saveProfiles()}
                          data-no-transition
                        ></textarea>
                      </div>
                    {/if}
                  </div>
                {/each}

                {#if showNewProfile}
                  <div class="flex items-center gap-2 animate-fade-in">
                    <input
                      class="flex-1 bg-bg-input border border-border rounded-lg px-3 py-1.5 text-[12px] text-text
                             placeholder:text-text-tertiary focus:outline-none focus:border-accent"
                      placeholder="Profile name..."
                      bind:value={newProfileName}
                      onkeydown={(e) => e.key === "Enter" && createProfile()}
                      data-no-transition
                    />
                    <button class="text-[11px] text-accent hover:text-accent-hover" onclick={createProfile}>Create</button>
                    <button class="text-[11px] text-text-tertiary" onclick={() => { showNewProfile = false; newProfileName = ""; }}>Cancel</button>
                  </div>
                {:else}
                  <button class="text-[12px] text-accent hover:text-accent-hover" onclick={() => showNewProfile = true}>+ Add profile</button>
                {/if}
              </div>
            {/if}

            <div class="my-4 h-px bg-border-subtle"></div>

            <!-- Templates section -->
            <button
              class="flex items-center gap-2 w-full text-left mb-1"
              onclick={() => showTemplates = !showTemplates}
            >
              <ChevronRight class="w-3 h-3 text-text-tertiary transition-transform duration-[var(--duration-ui)] {showTemplates ? 'rotate-90' : ''}" />
              <h3 class="text-[14px] font-semibold text-text">Templates</h3>
              <span class="text-[10px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-tertiary">
                {templates.length}
              </span>
            </button>
            <p class="text-[11px] text-text-tertiary mb-3 ml-5">Structured formats for dictation sessions</p>

            {#if showTemplates}
              <div class="space-y-1.5 animate-fade-in ml-5">
                {#each templates as template, i}
                  <div class="group">
                    <div class="flex items-center gap-2 bg-bg-input rounded-lg px-3 h-[36px]">
                      <span class="text-[12px] text-text flex-1 truncate">{template.name}</span>
                      <span class="text-[10px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-tertiary">
                        {template.sections.length} sections
                      </span>
                      <button
                        class="text-[10px] text-text-tertiary hover:text-accent opacity-0 group-hover:opacity-100"
                        onclick={() => editingTemplate = editingTemplate === i ? -1 : i}
                      >{editingTemplate === i ? "Close" : "Edit"}</button>
                      <button
                        class="text-[10px] text-text-tertiary hover:text-danger opacity-0 group-hover:opacity-100"
                        onclick={() => deleteTemplate(i)}
                      >Delete</button>
                    </div>
                    {#if editingTemplate === i}
                      <div class="mt-1.5 animate-fade-in">
	                        <textarea
	                          class="w-full h-[100px] bg-bg-elevated border border-border-subtle rounded-lg px-3 py-2
	                                 text-[12px] text-text resize-none
	                                 focus:outline-none focus:border-accent"
                          placeholder="One section per line..."
                          value={template.sections.join("\n")}
                          oninput={(e) => { template.sections = e.target.value.split("\n").filter((s) => s.trim()); saveTemplates(); }}
                          data-no-transition
                        ></textarea>
                      </div>
                    {/if}
                  </div>
                {/each}

                {#if showNewTemplate}
                  <div class="flex items-center gap-2 animate-fade-in">
                    <input
                      class="flex-1 bg-bg-input border border-border rounded-lg px-3 py-1.5 text-[12px] text-text
                             placeholder:text-text-tertiary focus:outline-none focus:border-accent"
                      placeholder="Template name..."
                      bind:value={newTemplateName}
                      onkeydown={(e) => e.key === "Enter" && createTemplate()}
                      data-no-transition
                    />
                    <button class="text-[11px] text-accent hover:text-accent-hover" onclick={createTemplate}>Create</button>
                    <button class="text-[11px] text-text-tertiary" onclick={() => { showNewTemplate = false; newTemplateName = ""; }}>Cancel</button>
                  </div>
                {:else}
                  <button class="text-[12px] text-accent hover:text-accent-hover" onclick={() => showNewTemplate = true}>+ Add template</button>
                {/if}
              </div>
            {/if}
          </div>
        {/if}
      </div>

      <!-- Output -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'output' ? null : 'output'}
        >
          <h3 class="font-display text-[18px] italic text-text">Output</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'output' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'output'}
          <div class="px-5 pb-5 animate-fade-in">
            <div class="space-y-0.5">
              <Toggle bind:checked={settings.autoCopy} label="Auto-copy to clipboard" />
              <Toggle
                bind:checked={settings.autoPaste}
                label="Auto-paste into focused window"
                description={pasteBackendsDescription}
              />
              <Toggle
                bind:checked={settings.transcriptionPreview}
                label="Floating preview when Kon is unfocused"
                description="Shows a small always-on-top window with the raw transcription as you dictate, then the final formatted text. Only opens when the main window is unfocused or hidden."
              />
              <Toggle
                bind:checked={settings.meetingAutoCapture}
                label="Remind me when a meeting starts"
                description="Toasts when a matching app appears in the process list. You still hit the hotkey — Kon never records on its own."
              />
              {#if settings.meetingAutoCapture}
                <div class="ml-[50px] mt-2 mb-1 animate-fade-in">
                  <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-1.5">Apps to watch (comma-separated)</p>
                  <input
                    type="text"
                    class="w-full bg-bg-input border border-border-subtle rounded-lg px-3 py-1.5 text-[12px] text-text"
                    value={settings.meetingAutoCaptureApps.join(", ")}
                    oninput={(event) => {
                      const raw = event.currentTarget.value;
                      settings.meetingAutoCaptureApps = raw
                        .split(",")
                        .map((entry) => entry.trim().toLowerCase())
                        .filter((entry) => entry.length > 0);
                    }}
                  />
                </div>
              {/if}
              <Toggle
                bind:checked={settings.soundCues}
                label="Sound cues on start / stop / complete"
                description="Short synthesised tones for eyes-off feedback. Synthesised locally via Web Audio — no assets bundled."
              />
              {#if settings.soundCues}
                <div class="ml-[50px] mt-2 mb-1 animate-fade-in flex items-center gap-3">
                  <label for="sound-cue-volume" class="text-[11px] text-text-tertiary uppercase tracking-wider">Volume</label>
                  <input
                    id="sound-cue-volume"
                    type="range"
                    min="0"
                    max="1"
                    step="0.05"
                    bind:value={settings.soundCueVolume}
                    class="w-[160px] accent-accent"
                    data-no-transition
                  />
                  <span class="text-[11px] text-text-secondary w-[34px]">{Math.round(settings.soundCueVolume * 100)}%</span>
                  <button
                    class="text-[11px] text-accent hover:text-accent-hover"
                    onclick={async () => {
                      const mod = await import("$lib/utils/sounds.js");
                      mod.playCompleteCue(settings.soundCueVolume, true);
                    }}
                  >Test</button>
                </div>
              {/if}
              <Toggle bind:checked={settings.includeTimestamps} label="Include timestamps in exports" />
              <Toggle
                bind:checked={settings.saveAudio}
                label="Save audio recordings"
                description="Saves raw audio as .wav files (~2MB per minute). Stored locally."
              />
              {#if settings.saveAudio}
                <div class="ml-[50px] mt-2 animate-fade-in">
	                  <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-1.5">Output Folder</p>
	                  <div class="flex items-center gap-2">
	                    <div bind:this={outputFolderEl} class="flex-1 bg-bg-input rounded-lg px-3 py-1.5 border border-border-subtle">
	                      <p class="text-[11px] text-text-secondary whitespace-pre-wrap break-words" style="line-height: {settingsPathLineHeight}px" title={settings.outputFolder || "Default (app data)"}>
	                        {outputFolderPreview}
	                      </p>
	                    </div>
                    <button
                      class="text-[11px] text-accent hover:text-accent-hover whitespace-nowrap"
                      onclick={async () => {
                        try {
                          const folder = await open({ directory: true, title: "Select output folder" });
                          if (folder) { settings.outputFolder = folder; saveSettings(); }
                        } catch {}
                      }}
                    >Change</button>
                    {#if settings.outputFolder}
                      <button
                        class="text-[11px] text-text-tertiary hover:text-text-secondary whitespace-nowrap"
                        onclick={() => { settings.outputFolder = ""; saveSettings(); }}
                      >Reset</button>
                    {/if}
                  </div>
                </div>
              {/if}
            </div>
          </div>
        {/if}
      </div>

      <!-- Hotkey -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'hotkey' ? null : 'hotkey'}
        >
          <h3 class="font-display text-[18px] italic text-text">Global Hotkey</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'hotkey' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'hotkey'}
          <div class="px-5 pb-5 animate-fade-in">
            <p class="text-[11px] text-text-tertiary mb-4">Toggle recording from anywhere. Click to change.</p>
            <HotkeyRecorder />
          </div>
        {/if}
      </div>

      <!-- Appearance -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'appearance' ? null : 'appearance'}
        >
          <h3 class="font-display text-[18px] italic text-text">Appearance</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'appearance' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'appearance'}
          <div class="px-5 pb-5 animate-fade-in">
            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Theme</p>
              <SegmentedButton options={["Dark", "Light", "System"]} bind:value={settings.theme} />
            </div>

            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Zone</p>
              <ZonePicker />
            </div>

            <div class="mb-6">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">
                Font Size <span class="font-normal text-text-secondary ml-1">{settings.fontSize}px</span>
              </p>
              <input
                type="range" min="10" max="24" step="1"
                bind:value={settings.fontSize}
                class="w-[200px] accent-accent"
                data-no-transition
              />
            </div>

            <div class="mb-2">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">
                {$_("settings.language")}
              </p>
              <div class="inline-flex bg-bg-elevated rounded-[10px] p-[3px] gap-[2px]">
                {#each SUPPORTED_LOCALES as option}
                  <button
                    class="rounded-lg font-medium px-3.5 py-[6px] text-[12px]
                      {$currentLocale === option.code
                        ? 'bg-accent text-bg shadow-[0_1px_4px_rgba(232,168,124,0.3)]'
                        : 'text-text-secondary hover:text-text hover:bg-hover'}"
                    style="transition-duration: var(--duration-ui)"
                    onclick={() => setLocale(option.code)}
                  >{option.label}</button>
                {/each}
              </div>
              <p class="text-[11px] text-text-tertiary mt-2">{$_("settings.languageDescription")}</p>
            </div>
          </div>
        {/if}
      </div>

      <!-- Accessibility -->
      <div class="border-b border-border-subtle">
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'accessibility' ? null : 'accessibility'}
        >
          <h3 class="font-display text-[18px] italic text-text">Accessibility</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'accessibility' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'accessibility'}
          <div class="px-5 pb-5 animate-fade-in">
            <AccessibilityControls />
          </div>
        {/if}
      </div>

      <!-- About -->
      <div>
        <button
          class="flex items-center justify-between w-full py-4 px-5 text-left"
          onclick={() => openSection = openSection === 'about' ? null : 'about'}
        >
          <h3 class="font-display text-[18px] italic text-text">About</h3>
          <span class="text-text-tertiary text-[16px] leading-none">{openSection === 'about' ? '−' : '+'}</span>
        </button>
        {#if openSection === 'about'}
          <div class="px-5 pb-5 animate-fade-in">
            <!-- Engine status -->
            <div class="flex items-center gap-2 mb-4">
              <span class="w-[7px] h-[7px] rounded-full {engineOk ? 'bg-success' : 'bg-warning'}"></span>
              <span class="text-[12px] text-text-secondary">{engineStatus}</span>
            </div>

            <div class="space-y-1.5">
              {#each [
                "100% offline — all processing on your machine",
                "No Python required — compiled Whisper engine",
                "No cloud — audio never leaves your computer",
                "No accounts — no sign-up, no tracking",
                "No telemetry — zero data collection",
              ] as item}
                <div class="flex items-start gap-2">
                  <Check class="w-3.5 h-3.5 text-success mt-0.5 flex-shrink-0" />
                  <p class="text-[11px] text-text-secondary">{item}</p>
                </div>
              {/each}
            </div>

            <p class="text-[11px] text-text-tertiary mt-5">Kon v1.0 · Powered by whisper.cpp · Built by CORBEL Ltd</p>

            <!-- Diagnostic report (privacy posture: local only until you share it) -->
            <div class="mt-6 pt-5 border-t border-border-subtle">
              <p class="text-[10px] font-medium text-text-tertiary uppercase tracking-wider mb-2">Diagnostics</p>
              <p class="text-[11px] text-text-tertiary mb-3">
                If something goes wrong, generate a diagnostic report to share with the developer. The report contains your settings, recent errors, any crash dumps, and the tail of the log file. Nothing is sent automatically — you preview it first, then choose copy or save.
              </p>
              <div class="flex gap-2 mb-3">
                <button
                  type="button"
                  onclick={generateDiagnosticReport}
                  disabled={diagnosticReportLoading}
                  class="px-3 py-2 text-[12px] bg-accent text-bg rounded-lg disabled:opacity-50 hover:bg-accent-hover"
                >{diagnosticReportLoading ? "Generating…" : "Generate report"}</button>
                {#if diagnosticReport}
                  <button
                    type="button"
                    onclick={copyDiagnosticReport}
                    class="px-3 py-2 text-[12px] text-text border border-border rounded-lg hover:border-accent hover:text-accent"
                  >Copy to clipboard</button>
                  <button
                    type="button"
                    onclick={saveDiagnosticReport}
                    class="px-3 py-2 text-[12px] text-text border border-border rounded-lg hover:border-accent hover:text-accent"
                  >Save as file</button>
                {/if}
              </div>
              {#if diagnosticReportError}
                <p class="text-[11px] text-error mb-2">{diagnosticReportError}</p>
              {/if}
              {#if diagnosticReportSavedTo}
                <p class="text-[11px] text-success mb-2">{diagnosticReportSavedTo}</p>
              {/if}
              {#if diagnosticReport}
                <details class="text-[11px]">
                  <summary class="cursor-pointer text-text-secondary hover:text-text">Preview report ({diagnosticReport.length} chars)</summary>
                  <pre class="mt-2 p-3 bg-bg-input border border-border rounded-lg text-[10px] text-text-secondary overflow-auto max-h-[400px] whitespace-pre-wrap font-mono">{diagnosticReport}</pre>
                </details>
              {/if}
            </div>
          </div>
        {/if}
      </div>
    </Card>
  </div>
</div>