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 "$lib/components/HotkeyRecorder.svelte";
  import ImplementationRulesEditor from "$lib/components/ImplementationRulesEditor.svelte";
  import SettingsGroup from "$lib/components/SettingsGroup.svelte";
  import ZonePicker from "$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, Search, X, Mic, BookOpen, Type, Sparkles, SquareCheck, Clipboard, Sliders } from "lucide-svelte";
  import { formatDuration } from "$lib/utils/time.js";
  import { _ } from "svelte-i18n";
  import { SUPPORTED_LOCALES, setLocale, currentLocale } from "$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);
  // Whisper download. bytes and start time drive the byte counter and the
  // rough remaining-time estimate alongside the percent.
  let downloadBytes = $state(0);
  let downloadTotal = $state(0);
  let downloadStartedAt = $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);
  // LLM download mirrors the whisper telemetry. Bytes + start time give
  // us the same bytes / ETA chip that ships on the whisper row.
  let llmDownloadBytes = $state(0);
  let llmDownloadTotal = $state(0);
  let llmDownloadStartedAt = $state(0);
  let llmLoaded = $state(false);
  let systemInfo = $state(null);

  // Bytes formatter shared with the model download chips. Mirrors the
  // copy used inside ModelDownloader.svelte; lifted here so we don't have
  // to import a single component just for one helper.
  function formatBytes(bytes: number) {
    if (!bytes || bytes < 0) return "0 B";
    if (bytes < 1024) return `${bytes} B`;
    if (bytes < 1048576) return `${(bytes / 1024).toFixed(1)} KB`;
    if (bytes < 1073741824) return `${(bytes / 1048576).toFixed(1)} MB`;
    return `${(bytes / 1073741824).toFixed(2)} GB`;
  }

  // Estimated seconds remaining from a percent + the moment the download
  // started. Returns 0 until we have at least 1% of progress so the first
  // tick doesn't read as "300 minutes". Mirrors the FirstRunPage shape
  // but exported here so we can show it on the Whisper and LLM rows.
  function etaSecondsFromPercent(percent: number, startedAt: number): number {
    if (!percent || percent <= 0 || !startedAt) return 0;
    const elapsedSec = (Date.now() - startedAt) / 1000;
    const totalSec = elapsedSec / (percent / 100);
    return Math.max(0, totalSec - elapsedSec);
  }

  const LLM_MODELS = [
    {
      id: "qwen3_5_2b",
      label: "Minimal",
      subtitle: "Qwen3.5 2B",
      fit: "8 GB RAM, CPU-heavy machines",
      size: "~1.3 GB",
    },
    {
      id: "qwen3_5_4b",
      label: "Standard",
      subtitle: "Qwen3.5 4B",
      fit: "16 GB RAM or 6 GB+ VRAM",
      size: "~2.7 GB",
    },
    {
      id: "qwen3_5_9b",
      label: "High",
      subtitle: "Qwen3.5 9B",
      fit: "32 GB RAM and 12 GB+ VRAM",
      size: "~5.7 GB",
    },
    {
      id: "qwen3_6_27b",
      label: "Maximum",
      subtitle: "Qwen3.6 27B",
      fit: "64 GB RAM and 24 GB+ VRAM",
      size: "~17 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 editingProfile = $state(-1);
  let editingTemplate = $state(-1);
  let newProfileName = $state("");
  let newTemplateName = $state("");
  let showNewProfile = $state(false);
  let showNewTemplate = $state(false);

  // Arm-confirm state for profile deletion. Mirrors HistoryPage's inline
  // confirm pattern (4-second auto-disarm) — first click on Delete arms,
  // second click within the window calls through to the storage layer.
  // Replaces the prior one-click splice-into-localStorage path that
  // silently drifted localStorage and SQLite apart.
  const PROFILE_DELETE_CONFIRM_MS = 4000;
  let deleteProfileArmedIndex = $state(-1);
  let deleteProfileArmTimer: ReturnType<typeof setTimeout> | null = null;
  let deleteProfileBusy = $state(false);

  // Phase 9c: SettingsGroup native <details> drives disclosure state per
  // group; no more centralised openSection. Transcription stays open by
  // default (matches the prior accordion behaviour where it was the
  // landing section).

  // Search filter. Empty string = no filter and groups use their default
  // open state. Non-empty string force-opens any SettingsGroup whose
  // title, description, or hand-curated keywords contain the query
  // (case-insensitive). Parent groups pass their children's keywords
  // through so a match on "GPU" inside AI Assistant also opens AI &
  // Processing.
  let settingsSearch = $state("");
  let searchActive = $derived(settingsSearch.trim().length > 0);
  let searchQuery = $derived(settingsSearch.trim().toLowerCase());
  function searchMatches(...terms) {
    if (!searchActive) return false;
    return terms.some((t) => (t || "").toString().toLowerCase().includes(searchQuery));
  }

  // Quick-settings row at the top of SettingsPage. Surfaces theme, font
  // size, and the global hotkey above the seven progressive-disclosure
  // groups so the most-tweaked controls don't require opening a group.
  // Font-size buckets map onto the existing settings.fontSize range
  // (10-24); Smaller/Default/Larger map onto 12/14/18 to match the
  // existing default of 14. SegmentedButton uses bind:value, so a
  // local mirror state syncs with settings.fontSize via $effect — this
  // also keeps the row in sync if Appearance's fine-grained slider is
  // dragged.
  const FONT_SIZE_BUCKETS = { Smaller: 12, Default: 14, Larger: 18 };
  function bucketFromSize(fs) {
    if ((fs ?? 14) <= 12) return "Smaller";
    if ((fs ?? 14) >= 18) return "Larger";
    return "Default";
  }
  let fontSizeBucket = $state(bucketFromSize(settings.fontSize));
  $effect(() => {
    const next = bucketFromSize(settings.fontSize);
    if (next !== fontSizeBucket) fontSizeBucket = next;
  });
  $effect(() => {
    const target = FONT_SIZE_BUCKETS[fontSizeBucket];
    if (target !== undefined && settings.fontSize !== target) {
      settings.fontSize = target;
    }
  });
  // Hotkey chip jumps to the Global hotkey SettingsGroup. The group
  // sits inside Appearance & System; both must be opened so the
  // recorder is visible after the scroll lands.
  function jumpToGlobalHotkey() {
    const wrapper = document.getElementById("global-hotkey-group");
    if (!wrapper) return;
    const details = wrapper.querySelectorAll("details");
    details.forEach((d) => { (d as HTMLDetailsElement).open = true; });
    wrapper.scrollIntoView({ behavior: "smooth", block: "start" });
  }
  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_5_4b";
  }

  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_6_27b" && ramMb < 65536) {
      return "Maximum tier needs 64 GB RAM (or a 24 GB GPU) to avoid heavy swap. Expect slow responses on this machine.";
    }
    if (modelId === "qwen3_5_9b" && ramMb < 32768) {
      return "High tier will swap heavily on this machine. Expect slow responses.";
    }
    if (modelId === "qwen3_5_4b" && ramMb < 16384 && !hasGpuAcceleration()) {
      return "Standard 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_6_27b") return ramMb >= 65536;
    if (modelId === "qwen3_5_9b") return ramMb >= 32768;
    if (modelId === "qwen3_5_4b") 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_5_4b";
    }
  }

  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;
    llmDownloadBytes = 0;
    llmDownloadTotal = 0;
    llmDownloadStartedAt = Date.now();
    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,
        // Sequential-GPU guard (brief item A.1 #28).
        concurrent: settings.aiGpuConcurrency === "parallel",
      });
      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";
    }
  }

  // Brief item B.1 #27: diagnostic button that classifies LLM setup
  // failures into actionable categories. Result shape comes from the
  // backend — category / ok / message / hint. `llmTestHint` is held
  // separately so we can render it below the one-line status without
  // stomping the existing llmStatus string.
  let llmTestBusy = $state(false);
  let llmTestHint = $state("");

  async function testSelectedLlmModel() {
    if (llmTestBusy) return;
    const modelId = selectedLlmModelId();
    llmTestBusy = true;
    llmStatus = "Testing...";
    llmTestHint = "";
    try {
      const result = await invoke("test_llm_model", { modelId });
      llmStatus = result?.message ?? "Test complete";
      llmTestHint = result?.hint ?? "";
      // A successful test also means the model was loaded (or was
      // already loaded) — refresh both Settings-local and global
      // status so the sidebar chip and download/load buttons react.
      await refreshLlmStatus();
      await refreshGlobalLlmStatus(settings.aiTier);
    } catch (err) {
      llmStatus = typeof err === "string" ? err : "Test failed";
      llmTestHint = "";
    } finally {
      llmTestBusy = false;
    }
  }

  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.";
  }

  // AI section open-handler (Phase 9c restructure). Wired to the AI &
  // Processing SettingsGroup's `onopen`. The status calls are also made
  // in onMount, so re-running them on first open is a cheap correction
  // for cases where the mount-time call raced an unmounted state.
  async function onAiSectionOpen() {
    await ensureRecommendedLlmTier();
    await refreshLlmStatus();
    await refreshGlobalLlmStatus(settings.aiTier);
  }

  // Phase 4 Read Page Aloud. Voices are lazy-loaded on first open so
  // Settings doesn't pay the `say -v ?` / PowerShell cost on every
  // mount. An empty list renders as "System default" only.
  let ttsVoices = $state([]);
  let ttsVoicesLoaded = $state(false);
  let ttsVoicesLoading = $state(false);
  let ttsVoicesError = $state("");

  async function refreshTtsVoices() {
    if (ttsVoicesLoading) return;
    ttsVoicesLoading = true;
    ttsVoicesError = "";
    try {
      ttsVoices = await invoke("tts_list_voices");
      ttsVoicesLoaded = true;
    } catch (err) {
      ttsVoicesError = String(err);
    } finally {
      ttsVoicesLoading = false;
    }
  }

  // Wired to the Read aloud SettingsGroup's `onopen`. Idempotent —
  // refreshTtsVoices already short-circuits when ttsVoicesLoading.
  async function onReadAloudOpen() {
    if (!ttsVoicesLoaded) {
      await refreshTtsVoices();
    }
  }

  async function testReadAloudVoice() {
    try {
      await invoke("tts_speak", {
        text: "This is Lumotia reading aloud.",
        rate: settings.ttsRate,
        voice: settings.ttsVoice ?? null,
      });
    } catch (err) {
      toasts.warn("Could not read aloud", String(err));
    }
  }

  // Phase 5 rituals. Autostart state mirrors the OS-level entry managed
  // by tauri-plugin-autostart; reading via invoke keeps the toggle
  // honest even if the user has edited their .desktop file manually.
  //
  // Async onChange handler for the Launch-at-Login toggle. Toggle.svelte
  // shows a spinner while the promise is in flight and snaps back to the
  // previous checked value on rejection, so we throw on failure rather
  // than swallow it. The store value is only mutated on success.
  async function setLaunchAtLogin(nextOn: boolean) {
    try {
      const plugin = await import("@tauri-apps/plugin-autostart");
      if (nextOn) {
        await plugin.enable();
      } else {
        await plugin.disable();
      }
      settings.launchAtLogin = nextOn;
    } catch (err) {
      toasts.warn("Could not update autostart", String(err));
      // Re-read to correct the store if we failed halfway, then re-throw
      // so Toggle can snap its checked state back to the previous value.
      try {
        const plugin = await import("@tauri-apps/plugin-autostart");
        settings.launchAtLogin = await plugin.isEnabled();
      } catch { /* best-effort */ }
      throw err;
    }
  }

  async function syncAutostartFromOs() {
    try {
      const plugin = await import("@tauri-apps/plugin-autostart");
      settings.launchAtLogin = await plugin.isEnabled();
    } catch { /* best-effort on browser / first load */ }
  }

  function openWindDown() {
    page.current = "shutdown";
  }

  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();

    // Phase 5: read the live OS-level autostart state so the toggle
    // reflects reality rather than last-saved intent.
    syncAutostartFromOs();

    // 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;
      // The Rust side sends snake_case keys via DownloadProgress; the
      // older tiny/base ModelDownloader path uses `downloaded`/`total`.
      // Read both so the chip works regardless of which path emitted.
      downloadBytes = event.payload.bytes_downloaded ?? event.payload.downloaded ?? 0;
      downloadTotal = event.payload.total_bytes ?? event.payload.total ?? 0;
    });

    unlistenLlm = await listen("lumotia:llm-download-progress", (event) => {
      llmDownloadProgress = event.payload.percent || 0;
      llmDownloadingModel = event.payload.modelId || llmDownloadingModel;
      llmDownloadBytes = event.payload.done ?? 0;
      llmDownloadTotal = event.payload.total ?? 0;
    });

    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();
    if (deleteProfileArmTimer) {
      clearTimeout(deleteProfileArmTimer);
      deleteProfileArmTimer = null;
    }
  });

  $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;
    downloadBytes = 0;
    downloadTotal = 0;
    downloadStartedAt = Date.now();
    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,
        concurrent: settings.aiGpuConcurrency === "parallel",
      });
      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",
        concurrent: settings.aiGpuConcurrency === "parallel",
      });
      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;
  }

  // Two-step delete. First call arms (UI swaps to Confirm/Cancel pills);
  // second call inside the window does the work. Routes through the
  // SQLite-backed profilesStore so the canonical profile row + its
  // profile_terms cascade are removed; legacy localStorage entry is only
  // spliced after the storage call succeeds. The storage layer rejects
  // deletion when the profile still has transcripts attached — that
  // rejection surfaces as a toast via profilesStore.delete().
  function armDeleteProfile(index) {
    deleteProfileArmedIndex = index;
    if (deleteProfileArmTimer) clearTimeout(deleteProfileArmTimer);
    deleteProfileArmTimer = setTimeout(() => {
      deleteProfileArmedIndex = -1;
      deleteProfileArmTimer = null;
    }, PROFILE_DELETE_CONFIRM_MS);
  }

  function disarmDeleteProfile() {
    deleteProfileArmedIndex = -1;
    if (deleteProfileArmTimer) {
      clearTimeout(deleteProfileArmTimer);
      deleteProfileArmTimer = null;
    }
  }

  async function confirmDeleteProfile(index) {
    if (deleteProfileBusy) return;
    if (index < 0 || index >= profiles.length) {
      disarmDeleteProfile();
      return;
    }
    const name = profiles[index].name;
    deleteProfileBusy = true;
    try {
      // Match the legacy localStorage record to its SQL counterpart by
      // name. The two systems were grown in parallel: localStorage uses
      // name as the natural key, SQL uses a UUID. Until the data model
      // is unified we have to bridge by name.
      const sqlProfile = profilesStore.profiles.find((p) => p.name === name);
      if (sqlProfile && sqlProfile.id !== DEFAULT_PROFILE_ID) {
        const before = profilesStore.profiles.length;
        await profilesStore.delete(sqlProfile.id);
        // profilesStore.delete catches its own errors and emits a toast;
        // we detect failure by checking whether the store actually removed
        // the row. If it did not, abandon the legacy splice so the two
        // sides stay aligned.
        if (profilesStore.profiles.length === before) {
          return;
        }
      }
      if (page.activeProfile === name) {
        page.activeProfile = "None";
      }
      removeProfileTaskList(name);
      profiles.splice(index, 1);
      saveProfiles();
      editingProfile = -1;
    } finally {
      deleteProfileBusy = false;
      disarmDeleteProfile();
    }
  }

  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 + sticky search. The header stays at the top of the scroll
       container so the search input is reachable from any depth. The
       solid bg-bg matches the page so groups don't bleed under it. -->
  <div class="sticky top-0 z-10 bg-bg pt-6 pb-3 px-7 border-b border-border-subtle">
    <div class="flex items-center justify-between gap-4 mb-3">
      <div class="flex items-baseline gap-3 flex-wrap">
        <h2 class="font-display text-[26px] italic text-text">Settings</h2>
        <!-- Ambient trust signal. The longer About list stays the
             deep-dive; this chip is a one-line summary that's always
             visible while the user moves through the settings tree. -->
        <span
          class="text-[12px] text-text-secondary bg-accent-subtle rounded-full px-2.5 py-1"
          role="status"
          aria-label="Privacy posture: 100% local, no telemetry, no cloud"
        >100% local · no telemetry · no cloud</span>
      </div>
    </div>
    <div class="relative max-w-md">
      <Search size={14} class="absolute left-3 top-1/2 -translate-y-1/2 text-text-tertiary pointer-events-none" aria-hidden="true" />
      <input
        type="search"
        placeholder="Search settings"
        bind:value={settingsSearch}
        class="w-full bg-bg-input border border-border rounded-lg pl-9 pr-9 py-2 text-[13px] text-text placeholder:text-text-tertiary
               focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_var(--accent-shadow-focus)]"
        aria-label="Search settings"
      />
      {#if searchActive}
        <button
          type="button"
          onclick={() => (settingsSearch = "")}
          class="absolute right-2 top-1/2 -translate-y-1/2 p-1 rounded text-text-tertiary hover:text-text hover:bg-hover"
          aria-label="Clear search"
        >
          <X size={14} aria-hidden="true" />
        </button>
      {/if}
    </div>
  </div>

  <div class="px-7 pt-5 pb-8">
    <Card>
      <!--
        Phase 9c progressive-disclosure restructure. Seven top-level
        groups (Audio, Vocabulary, Transcription, AI & Processing,
        Tasks & Rituals, Output & Capture, Appearance & System), each
        wrapped in <SettingsGroup>. Sub-sections inside a group are
        nested <SettingsGroup>s where there is more than one; otherwise
        the group renders its content directly.
      -->

      <!-- Quick-settings row. Always visible (not subject to the
           settings search filter). Surfaces theme, font size, and
           the global hotkey above the seven groups. -->
      <div class="grid grid-cols-3 gap-3 px-1 pb-4 border-b border-border-subtle mb-2">
        <div>
          <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Theme</p>
          <SegmentedButton size="small" options={["Dark", "Light"]} bind:value={settings.theme} />
        </div>
        <div>
          <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Font size</p>
          <SegmentedButton
            size="small"
            options={["Smaller", "Default", "Larger"]}
            bind:value={fontSizeBucket}
          />
        </div>
        <div>
          <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Hotkey</p>
          <button
            type="button"
            onclick={jumpToGlobalHotkey}
            class="px-2.5 py-1 text-[12px] font-medium rounded-lg bg-bg-elevated text-text-secondary border border-border-subtle hover:border-accent hover:text-accent"
            style="transition-duration: var(--duration-ui)"
            aria-label={`Edit global hotkey, currently ${settings.globalHotkey}`}
          >{settings.globalHotkey}</button>
        </div>
      </div>

      <!-- 1. Audio — input device, gain, monitoring, RMS/VAD -->
      <SettingsGroup
        title="Audio"
        description="Microphone input and capture behaviour."
        icon={Mic}
        open={searchActive ? searchMatches('Audio', 'Microphone input capture behaviour', 'mic device gain monitoring rms vad') : false}
      >
        <div class="px-1 pb-2 animate-fade-in">
            <div class="mb-6">
              <p class="text-[12px] font-medium text-text-secondary 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(214,132,80,0.1)]
                         appearance-none cursor-pointer min-w-[280px] max-w-full"
                  bind:value={settings.microphoneDevice}
                  onfocus={refreshAudioDevices}
                >
                  <option value="">Auto (recommended), let Lumotia 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-[12px] text-danger mt-2">{audioDevicesError}</p>
              {:else if visibleAudioDevices.length === 0}
                <p class="text-[12px] text-text-secondary mt-2">No input devices detected. Check that a microphone is connected and PulseAudio/PipeWire is running.</p>
              {:else}
                <p class="text-[12px] text-text-secondary 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>
      </SettingsGroup>

      <!--
        2. Vocabulary — custom dictionary, hotwords, abbreviation
        expansion. Holds two sub-sections: profile-scoped vocabulary
        (terms + initial prompt; the default profile can't be deleted)
        and the older Profiles & Templates manager retained for back-
        compat with existing user data.
      -->
      <SettingsGroup
        title="Vocabulary"
        description="Profile-scoped terms, prompts, and templates."
        icon={BookOpen}
        open={searchActive ? searchMatches('Vocabulary', 'Profile-scoped terms prompts templates', 'Terms profiles initial prompt', 'Profiles templates rename create delete', 'Profiles vocabulary words rename create delete', 'Templates structured formats sections create delete') : false}
      >
        <SettingsGroup
          title="Terms & profiles"
          open={searchActive ? searchMatches('Terms profiles initial prompt vocabulary') : true}
        >
          <div class="animate-fade-in">
            <p class="text-[12px] text-text-secondary 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-[12px] font-medium text-text-secondary 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(214,132,80,0.1)]
                         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-danger hover:text-danger
                         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-[12px] font-medium text-text-secondary 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(214,132,80,0.1)]"
                />
              </div>

              <!-- Initial prompt textarea -->
              <div class="mb-5">
                <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Initial Prompt</p>
                <p class="text-[12px] text-text-secondary 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(214,132,80,0.1)]"
                ></textarea>
                <div class="flex items-center gap-3 mt-1">
                  {#if initialPromptDirty}
                    <button
                      type="button"
                      onclick={saveInitialPrompt}
                      class="text-[12px] text-accent hover:text-accent-hover"
                    >Save prompt</button>
                    <span class="text-[12px] text-text-secondary">Unsaved changes, saves on blur.</span>
                  {:else}
                    <span class="text-[12px] text-text-secondary">Saved.</span>
                  {/if}
                </div>
              </div>

              <!-- Terms -->
              <p class="text-[12px] font-medium text-text-secondary 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(214,132,80,0.1)]"
                />
                <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(214,132,80,0.1)]"
                />
                <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-[12px] text-text-secondary 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(214,132,80,0.1)]
                             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-secondary hover:text-text"
                      >Cancel</button>
                    </div>
                  </div>
                {/if}
              </div>

              {#if vocabularyError}
                <p class="text-[12px] text-danger mb-3">{vocabularyError}</p>
              {/if}

              {#if vocabulary.length === 0}
                <p class="text-[12px] text-text-secondary 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-[12px] text-text-secondary truncate">{entry.note}</div>
                        {/if}
                      </div>
                      <button
                        type="button"
                        onclick={() => deleteVocabTerm(entry.id)}
                        class="text-[12px] text-text-secondary hover:text-danger border border-border hover:border-danger rounded px-2 py-1"
                        aria-label="Delete {entry.term}"
                      >Remove</button>
                    </li>
                  {/each}
                </ul>
              {/if}
            {:else}
              <p class="text-[12px] text-text-secondary italic">Loading profiles…</p>
            {/if}
          </div>
        </SettingsGroup>
        <!--
          Older Profiles & Templates manager. Kept inside the Vocabulary
          group because both sub-sections concern dictation vocabulary
          and per-profile content.
        -->
        <SettingsGroup
          title="Profiles & templates"
          open={searchActive ? searchMatches('Profiles templates rename create delete', 'Profiles vocabulary words rename create delete', 'Templates structured formats sections create delete') : false}
        >
          <div class="animate-fade-in">
            <!-- Profiles section. Nested SettingsGroup for parity with
                 the rest of the settings tree; the count badge stays in
                 the title via the description slot. -->
            <SettingsGroup
              title="Profiles"
              description={`${profiles.length} ${profiles.length === 1 ? "profile" : "profiles"} · custom vocabulary to improve transcription accuracy`}
              open={searchActive ? searchMatches('Profiles vocabulary words rename create delete') : false}
            >
              <div class="space-y-1.5 animate-fade-in">
                {#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-[12px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-secondary">
                        {profileWordCount(profile.words)} words
                      </span>
                      <button
                        class="text-[12px] text-text-secondary hover:text-accent opacity-0 group-hover:opacity-100"
                        onclick={() => editingProfile = editingProfile === i ? -1 : i}
                      >{editingProfile === i ? "Close" : "Edit"}</button>
                      {#if deleteProfileArmedIndex === i}
                        <button
                          class="text-[12px] text-danger font-medium hover:underline"
                          onclick={() => confirmDeleteProfile(i)}
                          disabled={deleteProfileBusy}
                        >Confirm</button>
                        <button
                          class="text-[12px] text-text-tertiary hover:text-text hover:underline"
                          onclick={disarmDeleteProfile}
                          disabled={deleteProfileBusy}
                        >Cancel</button>
                      {:else}
                        <button
                          class="text-[12px] text-text-secondary hover:text-danger opacity-0 group-hover:opacity-100"
                          onclick={() => armDeleteProfile(i)}
                        >Delete</button>
                      {/if}
                    </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-[12px] text-accent hover:text-accent-hover" onclick={createProfile}>Create</button>
                    <button class="text-[12px] text-text-secondary" 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>
            </SettingsGroup>

            <!-- Templates section -->
            <SettingsGroup
              title="Templates"
              description={`${templates.length} ${templates.length === 1 ? "template" : "templates"} · structured formats for dictation sessions`}
              open={searchActive ? searchMatches('Templates structured formats sections create delete') : false}
            >
              <div class="space-y-1.5 animate-fade-in">
                {#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-[12px] px-1.5 py-0.5 rounded-full bg-bg-elevated text-text-secondary">
                        {template.sections.length} sections
                      </span>
                      <button
                        class="text-[12px] text-text-secondary hover:text-accent opacity-0 group-hover:opacity-100"
                        onclick={() => editingTemplate = editingTemplate === i ? -1 : i}
                      >{editingTemplate === i ? "Close" : "Edit"}</button>
                      <button
                        class="text-[12px] text-text-secondary 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-[12px] text-accent hover:text-accent-hover" onclick={createTemplate}>Create</button>
                    <button class="text-[12px] text-text-secondary" 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>
            </SettingsGroup>
          </div>
        </SettingsGroup>
      </SettingsGroup>

      <!-- 3. Transcription — engine, language, model, compute device, format mode. -->
      <SettingsGroup
        title="Transcription"
        description="Engine selection, models, language, and output formatting."
        icon={Type}
        open={searchActive ? searchMatches('Transcription', 'Engine selection models language output formatting', 'whisper parakeet engine model size british english formatting filler smart raw clean tier timestamps') : true}
      >
        <div class="animate-fade-in">

            <!-- Engine selector -->
            <div class="mb-6">
              <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Engine</p>
              <SegmentedButton options={["whisper", "parakeet"]} bind:value={settings.engine} />
              <p class="text-[12px] text-text-secondary 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-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Format Mode</p>
              <SegmentedButton options={["Raw", "Clean", "Smart"]} bind:value={settings.formatMode} />
              <p class="text-[12px] text-text-secondary 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-[12px] font-medium text-text-secondary 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-[12px] text-text-secondary 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-[12px] 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-[12px] text-success">
                      <span class="w-[6px] h-[6px] rounded-full bg-success"></span>
                      Downloaded
                    </span>
                    <button
                      class="text-[12px] text-text-secondary hover:text-accent"
                      onclick={loadSelectedModel}
                    >Load model</button>
                  {:else if downloadingModel === whisperModelId(settings.modelSize)}
                    <span class="text-[12px] text-warning">
                      {downloadProgress}%
                      {#if downloadTotal > 0}
                        · {formatBytes(downloadBytes)} / {formatBytes(downloadTotal)}
                      {/if}
                      {#if downloadProgress > 0 && downloadStartedAt > 0}
                        {@const remaining = etaSecondsFromPercent(downloadProgress, downloadStartedAt)}
                        {#if remaining > 1}
                          · {formatDuration(remaining)} left
                        {/if}
                      {/if}
                    </span>
                  {:else}
                    <button
                      class="text-[12px] 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-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Parakeet Model</p>
                <p class="text-[12px] text-text-secondary 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-[12px] 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-[12px] text-text-secondary">
                      <span class="w-[6px] h-[6px] rounded-full bg-text-tertiary"></span>
                      Downloaded
                    </span>
                    <button
                      class="text-[12px] text-text-secondary hover:text-accent"
                      onclick={loadParakeet}
                    >Load model</button>
                  {:else if parakeetDownloading}
                    <span class="text-[12px] text-warning">{parakeetProgress}% downloading...</span>
                  {:else}
                    <button
                      class="text-[12px] text-accent hover:text-accent-hover"
                      onclick={downloadParakeet}
                    >Download Parakeet</button>
                  {/if}
                </div>
              </div>
            {/if}

            <!-- Compute device -->
            <div class="mb-6">
              <p class="text-[12px] font-medium text-text-secondary 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(214,132,80,0.1)]
                         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-[12px] text-text-secondary 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-[12px] font-medium text-text-secondary 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(214,132,80,0.1)]
                           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(214,132,80,0.1)]
                           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-[12px] 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-[12px] text-text-secondary 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>
      </SettingsGroup>

      <!--
        4. AI & Processing — local LLM provider/model, content tagging,
        task extraction, deterministic post-processing toggles, and the
        if-then implementation rules editor.
      -->
      <SettingsGroup
        title="AI & Processing"
        description="Local LLM tier, cleanup post-processing, and rules."
        icon={Sparkles}
        onopen={onAiSectionOpen}
        open={searchActive ? searchMatches('AI Processing', 'Local LLM tier cleanup post-processing rules', 'Post-processing remove fillers british anti-hallucination', 'AI Assistant Local LLM tier model management qwen llama prewarm', 'Advanced cleanup preset prompt email notes code GPU concurrency parallel sequential VRAM', 'If-then rules implementation cleanup intentions') : false}
      >
        <SettingsGroup
          title="Post-processing"
          open={searchActive ? searchMatches('Post-processing remove fillers british anti-hallucination format') : false}
        >
          <div class="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>
        </SettingsGroup>

        <SettingsGroup
          title="AI Assistant"
          description="Local LLM tier and model management."
          open={searchActive ? searchMatches('AI Assistant Local LLM tier model management qwen llama prewarm', 'Advanced cleanup preset prompt email notes code GPU concurrency parallel sequential VRAM') : false}
        >
          <div class="animate-fade-in">
            <p class="text-[12px] text-text-secondary 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-[12px] font-medium text-text-secondary 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-[12px] text-text-secondary mt-2">
                {settings.aiTier === "off"
                  ? "No local LLM calls. Lumotia 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-[12px] font-medium text-text-secondary 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-[12px] text-text-secondary">{model.subtitle}</span>
                        </div>
                        <p class="text-[12px] text-text-secondary mt-1">{model.size} · {model.fit}</p>
                        {#if llmHardwareWarning(model.id)}
                          <p class="text-[12px] text-warning mt-2">{llmHardwareWarning(model.id)}</p>
                        {/if}
                      </div>
                      <div class="text-right text-[12px]">
                        {#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-[12px] text-text-secondary mt-1">{llmStatus}</p>
                  {#if llmTestHint}
                    <p class="text-[12px] text-accent mt-1">{llmTestHint}</p>
                  {/if}
                </div>

                <div class="flex items-center gap-2 flex-wrap">
                  {#if llmDownloadingModel === selectedLlmModelId()}
                    <span class="text-[12px] text-warning">
                      {llmDownloadProgress}%
                      {#if llmDownloadTotal > 0}
                        · {formatBytes(llmDownloadBytes)} / {formatBytes(llmDownloadTotal)}
                      {/if}
                      {#if llmDownloadProgress > 0 && llmDownloadStartedAt > 0}
                        {@const remaining = etaSecondsFromPercent(llmDownloadProgress, llmDownloadStartedAt)}
                        {#if remaining > 1}
                          · {formatDuration(remaining)} left
                        {/if}
                      {/if}
                    </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 disabled:opacity-50"
                      onclick={testSelectedLlmModel}
                      disabled={llmTestBusy}
                    >{llmTestBusy ? "Testing…" : "Test"}</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 disabled:opacity-50"
                      onclick={testSelectedLlmModel}
                      disabled={llmTestBusy}
                    >{llmTestBusy ? "Testing…" : "Test"}</button>
                    <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-[12px] text-text-secondary mt-3">
                Recommended for this machine:
                <span class="text-text">
                  {LLM_MODELS.find((model) => model.id === (settings.llmModelId || "qwen3_5_4b"))?.subtitle || "Qwen3.5 4B"}
                </span>
                {#if systemInfo}
                  · {Math.round((systemInfo.ram_mb || 0) / 1024)} GB RAM detected
                {/if}
              </p>
            </div>

            <div class="mt-5">
              <Toggle
                bind:checked={settings.prewarmModelOnStartup}
                label="Prewarm transcription model on startup"
                description="Loads Whisper after the app opens. Faster first capture, but higher idle memory use."
              />
            </div>

            <!-- Advanced tuning. Closed by default so the AI Assistant
                 page leads with the four first-decision controls (tier,
                 model, status, prewarm). Search opens this on hits for
                 GPU concurrency, cleanup preset, parallel/sequential. -->
            <SettingsGroup
              title="Advanced"
              description="Cleanup preset and GPU concurrency."
              open={searchActive ? searchMatches('Advanced cleanup preset prompt email notes code GPU concurrency parallel sequential VRAM') : false}
            >
              <div class="animate-fade-in">
                <!-- Cleanup preset (brief item B.1 #15). Shapes the tone /
                     structure of LLM cleanup output; composes on top of the
                     active profile's initial prompt. -->
                <div>
                  <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Cleanup preset</p>
                  <SegmentedButton
                    options={["default", "email", "notes", "code"]}
                    bind:value={settings.llmPromptPreset}
                  />
                  <p class="text-[12px] text-text-secondary mt-2">
                    {#if settings.llmPromptPreset === "email"}
                      Formats output as an email paragraph, tight sentences, no markdown, no auto-added greeting or signoff.
                    {:else if settings.llmPromptPreset === "notes"}
                      Formats action items as a bullet list led by imperative verbs; keeps prose informational sentences as prose.
                    {:else if settings.llmPromptPreset === "code"}
                      Preserves technical terms, variable names, file paths, and symbols exactly as spoken. No translation of identifiers.
                    {:else}
                      No preset, the active profile's prompt governs tone alone.
                    {/if}
                  </p>
                </div>

                <!-- Sequential-GPU guard (brief item A.1 #28). On a tight-
                     VRAM single-GPU system, loading LLM + Whisper together
                     can OOM. Sequential mode unloads one before loading the
                     other; adds reload latency between transcribe and
                     cleanup phases. -->
                <div class="mt-5">
                  <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">GPU concurrency</p>
                  <SegmentedButton
                    options={["parallel", "sequential"]}
                    bind:value={settings.aiGpuConcurrency}
                  />
                  <p class="text-[12px] text-text-secondary mt-2">
                    {#if settings.aiGpuConcurrency === "sequential"}
                      On tight-VRAM cards (≤6 GB), loading Whisper + LLM together OOMs. Sequential mode frees the other model before loading; adds a small reload pause between transcribe and cleanup.
                    {:else}
                      Both models stay resident in GPU memory. Faster transitions, but needs enough VRAM to hold both at once.
                    {/if}
                  </p>
                </div>
              </div>
            </SettingsGroup>
          </div>
        </SettingsGroup>

        <SettingsGroup
          title="If-then rules"
          description="Implementation rules for the AI cleanup pass."
          open={searchActive ? searchMatches('If-then rules implementation cleanup intentions') : false}
        >
          <div class="animate-fade-in">
            <ImplementationRulesEditor />
          </div>
        </SettingsGroup>
      </SettingsGroup>

      <!--
        5. Tasks & Rituals — task list management, focus timer, sparkline
        display, morning triage, evening wind-down, nudges. Launch-at-
        login retained inside Rituals because it's bundled with the
        morning/evening rituals stack in the existing UI block.
      -->
      <SettingsGroup
        title="Tasks & Rituals"
        description="Task surface, gamification, rituals, and nudges."
        icon={SquareCheck}
        open={searchActive ? searchMatches('Tasks Rituals', 'Task surface gamification rituals nudges', 'Rituals morning triage wind-down launch login autostart', 'Tasks page gamification visuals header sparkline', 'Nudges soft notifications hourly') : false}
      >
        <SettingsGroup
          title="Rituals"
          description="Morning triage, wind-down, launch at login."
          open={searchActive ? searchMatches('Rituals morning triage wind-down launch login autostart') : false}
        >
          <div class="animate-fade-in">
            <p class="text-[12px] text-text-secondary mb-4">
              All off by default. Rituals only appear when you ask for them.
            </p>

            <Toggle
              bind:checked={settings.ritualsMorning}
              label="Morning triage"
              description="On the first launch of the day after your set time, show a gentle pick-three modal drawn from open tasks. Skip any day without penalty."
            />

            {#if settings.ritualsMorning}
              <div class="pl-1 py-3 animate-fade-in">
                <label for="triage-time" class="block text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">
                  Earliest triage time
                </label>
                <input
                  id="triage-time"
                  type="time"
                  class="bg-bg-input border border-border rounded-lg px-3 py-1.5 text-[12px] text-text focus:border-accent focus:outline-none"
                  bind:value={settings.ritualsMorningTime}
                />
                <p class="text-[12px] text-text-secondary mt-2">
                  ADHD sleep inertia is intense for the first 30–45 minutes after waking. Pick a time when you're genuinely ready to decide.
                </p>
              </div>
            {/if}

            <Toggle
              bind:checked={settings.ritualsEvening}
              label="Evening wind-down"
              description="A reflective page you can open when you want to close the day. Not scheduled, never nagging."
            />

            {#if settings.ritualsEvening}
              <div class="pl-1 py-3 animate-fade-in">
                <button
                  type="button"
                  class="px-3 py-2 rounded-lg bg-bg-elevated border border-border text-[12px] text-text hover:border-accent"
                  onclick={openWindDown}
                >
                  Open wind-down now
                </button>
              </div>
            {/if}

            <div class="mt-4 pt-4 border-t border-border-subtle">
              <!-- Toggle handles the round-trip: it shows a spinner
                   while the OS call is in flight and snaps the checked
                   state back if the call rejects, so the UI never lies
                   about whether autostart is registered. -->
              <Toggle
                bind:checked={settings.launchAtLogin}
                label="Launch Lumotia at login"
                description="So Lumotia is already there at the start of the day. Uses your OS's standard autostart, no background tricks."
                onChange={setLaunchAtLogin}
              />
            </div>

          </div>
        </SettingsGroup>

        <SettingsGroup
          title="Tasks page"
          description="Gamification visuals on the Tasks header."
          open={searchActive ? searchMatches('Tasks page gamification visuals header sparkline') : false}
        >
          <div class="animate-fade-in">
            <p class="text-[12px] text-text-secondary mb-4">
              How the Tasks page surfaces progress. Always additive.
            </p>

            <!-- Phase 8: forgiving gamification. Toggle controls the sparkline only.
                 The "N today" badge on the Tasks header is always on. -->
            <Toggle
              bind:checked={settings.showMomentumSparkline}
              label="Show momentum sparkline"
              description="A tiny chart of the last 7 days' completion counts, shown on the Tasks header. Never counts against you."
            />
          </div>
        </SettingsGroup>

        <SettingsGroup
          title="Nudges"
          description="Soft notifications, capped per hour."
          open={searchActive ? searchMatches('Nudges soft notifications hourly') : false}
        >
          <div class="animate-fade-in">
            <p class="text-[12px] text-text-secondary mb-4">
              Gentle, anticipatory reminders. Capped at 3 per hour. Never fires while you're looking at Lumotia.
            </p>

            <Toggle
              bind:checked={settings.nudgesEnabled}
              label="Enable nudges"
              description="Soft-touch notifications when a timer has been ticking while you're away, when a morning triage is waiting, or when a micro-step decomposition has sat untouched for 15 minutes."
            />

            {#if settings.nudgesEnabled}
              <div class="pl-1 py-1 animate-fade-in">
                <Toggle
                  bind:checked={settings.nudgesMuted}
                  label="Mute for now"
                  description="Stops delivery without forgetting your settings. Flip back off when you want the nudges back."
                />
                <Toggle
                  bind:checked={settings.nudgesSpeakAloud}
                  label="Speak nudges aloud"
                  description="Also reads the nudge out through your Read-aloud voice. Useful if you keep the sound off but look up sometimes."
                />
              </div>
            {/if}
          </div>
        </SettingsGroup>
      </SettingsGroup>

      <!--
        6. Output & Capture — clipboard, paste, sound cues, history
        retention, dictation drafts, and Read aloud (TTS).
      -->
      <SettingsGroup
        title="Output & Capture"
        description="Clipboard, paste, audio capture, and read-aloud."
        icon={Clipboard}
        open={searchActive ? searchMatches('Output Capture', 'Clipboard paste audio capture read-aloud', 'Read aloud TTS voice rate', 'Capture export clipboard paste history dictation drafts sound cues meeting') : false}
      >
        <SettingsGroup
          title="Read aloud"
          description="System TTS voice for read-aloud features."
          onopen={onReadAloudOpen}
          open={searchActive ? searchMatches('Read aloud TTS voice rate system') : false}
        >
          <div class="animate-fade-in">
            <p class="text-[12px] text-text-secondary mb-4">
              Uses your operating system's built-in voices. No audio leaves the machine.
            </p>

            <div class="mb-4">
              <label for="tts-voice" class="block text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Voice</label>
              <select
                id="tts-voice"
                class="w-full bg-bg-input border border-border rounded-lg px-3 py-2 text-[12px] text-text focus:border-accent focus:outline-none"
                value={settings.ttsVoice ?? ""}
                onchange={(e) => { settings.ttsVoice = e.currentTarget.value || null; }}
                disabled={ttsVoicesLoading}
              >
                <option value="">System default</option>
                {#each ttsVoices as voice (voice.id)}
                  <option value={voice.id}>
                    {voice.name}{#if voice.language} · {voice.language}{/if}
                  </option>
                {/each}
              </select>
              {#if ttsVoicesError}
                <p class="text-[12px] text-danger mt-2">{ttsVoicesError}</p>
              {:else if ttsVoicesLoaded && ttsVoices.length === 0}
                <p class="text-[12px] text-text-secondary mt-2">
                  No additional voices reported by the system synth. Install extra voices through your OS accessibility settings.
                </p>
              {/if}
            </div>

            <div class="mb-4">
              <label for="tts-rate" class="block text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">
                Rate · {settings.ttsRate.toFixed(1)}×
              </label>
              <input
                id="tts-rate"
                type="range"
                min="0.5"
                max="2.0"
                step="0.1"
                class="w-full accent-accent"
                bind:value={settings.ttsRate}
              />
              <div class="flex justify-between text-[12px] text-text-secondary mt-1">
                <span>Slower</span>
                <span>Normal</span>
                <span>Faster</span>
              </div>
            </div>

            <button
              type="button"
              class="px-3 py-2 rounded-lg bg-bg-elevated border border-border text-[12px] text-text hover:border-accent"
              onclick={testReadAloudVoice}
            >
              Test voice
            </button>
          </div>
        </SettingsGroup>

        <SettingsGroup
          title="Capture & export"
          description="Clipboard, paste, history, and dictation drafts."
          open={searchActive ? searchMatches('Capture export clipboard paste history dictation drafts sound cues meeting auto-paste auto-copy') : true}
        >
          <div class="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 Lumotia 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. Lumotia never records on its own."
              />
              {#if settings.meetingAutoCapture}
                <div class="ml-[50px] mt-2 mb-1 animate-fade-in">
                  <p class="text-[12px] font-medium text-text-secondary 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-[12px] text-text-secondary 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-[12px] text-text-secondary w-[34px]">{Math.round(settings.soundCueVolume * 100)}%</span>
                  <button
                    class="text-[12px] 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-[12px] font-medium text-text-secondary 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-[12px] 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-[12px] 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-[12px] text-text-secondary hover:text-text-secondary whitespace-nowrap"
                        onclick={() => { settings.outputFolder = ""; saveSettings(); }}
                      >Reset</button>
                    {/if}
                  </div>
                </div>
              {/if}
            </div>
          </div>
        </SettingsGroup>
      </SettingsGroup>

      <!--
        7. Appearance & System — theme, dark mode, locale, font size,
        accessibility controls, global hotkey, autostart-adjacent
        platform settings, and About / diagnostics.
      -->
      <SettingsGroup
        title="Appearance & System"
        description="Theme, accessibility, hotkey, and About."
        icon={Sliders}
        open={searchActive ? searchMatches('Appearance System', 'Theme accessibility hotkey About', 'Global hotkey toggle recording shortcut', 'Appearance Theme zone font size locale dark light', 'Accessibility Reduced motion contrast typography lexend opendyslexic atkinson bionic dyslexic', 'About Engine status diagnostic report version') : false}
      >
        <div id="global-hotkey-group">
          <SettingsGroup
            title="Global hotkey"
            description="Toggle recording from anywhere."
            open={searchActive ? searchMatches('Global hotkey toggle recording shortcut') : false}
          >
            <div class="animate-fade-in">
              <p class="text-[12px] text-text-secondary mb-4">Toggle recording from anywhere. Click to change.</p>
              <HotkeyRecorder />
            </div>
          </SettingsGroup>
        </div>

        <SettingsGroup
          title="Appearance"
          description="Theme, zone, font size, locale."
          open={searchActive ? searchMatches('Appearance Theme zone font size locale dark light british cave energy reset') : false}
        >
          <div class="animate-fade-in">
            <div class="mb-6">
              <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Theme</p>
              <SegmentedButton options={["Dark", "Light", "System"]} bind:value={settings.theme} />
            </div>

            <div class="mb-6">
              <p class="text-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Zone</p>
              <ZonePicker />
            </div>

            <div class="mb-6">
              <p class="text-[12px] font-medium text-text-secondary 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-[12px] font-medium text-text-secondary 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-[var(--shadow-accent-pill)]'
                        : '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-[12px] text-text-secondary mt-2">{$_("settings.languageDescription")}</p>
            </div>
          </div>
        </SettingsGroup>

        <SettingsGroup
          title="Accessibility"
          description="Reduced motion, contrast, typography."
          open={searchActive ? searchMatches('Accessibility Reduced motion contrast typography lexend opendyslexic atkinson bionic dyslexic letter spacing line height') : false}
        >
          <div class="animate-fade-in">
            <AccessibilityControls />
          </div>
        </SettingsGroup>

        <SettingsGroup
          title="About"
          description="Engine status and diagnostic report."
          open={searchActive ? searchMatches('About Engine status diagnostic report version privacy local telemetry') : false}
        >
          <div class="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-[12px] text-text-secondary">{item}</p>
                </div>
              {/each}
            </div>

            <p class="text-[12px] text-text-secondary mt-5">Lumotia 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-[12px] font-medium text-text-secondary uppercase tracking-wider mb-2">Diagnostics</p>
              <p class="text-[12px] text-text-secondary 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-[12px] text-danger mb-2">{diagnosticReportError}</p>
              {/if}
              {#if diagnosticReportSavedTo}
                <p class="text-[12px] text-success mb-2">{diagnosticReportSavedTo}</p>
              {/if}
              {#if diagnosticReport}
                <details class="text-[12px]">
                  <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-[12px] text-text-secondary overflow-auto max-h-[400px] whitespace-pre-wrap font-mono">{diagnosticReport}</pre>
                </details>
              {/if}
            </div>
          </div>
        </SettingsGroup>
      </SettingsGroup>
    </Card>
  </div>
</div>