feat: stats and achievements (#45)

### Explanation

_No response_

### Issue

Closes #39

### Attestations

- [ ] I have read and agree to the [Code of Conduct](https://docs.nhcarrigan.com/community/coc/)
- [ ] I have read and agree to the [Community Guidelines](https://docs.nhcarrigan.com/community/guide/).
- [ ] My contribution complies with the [Contributor Covenant](https://docs.nhcarrigan.com/dev/covenant/).

### Dependencies

- [ ] I have pinned the dependencies to a specific patch version.

### Style

- [ ] I have run the linter and resolved any errors.
- [ ] My pull request uses an appropriate title, matching the conventional commit standards.
- [ ] My scope of feat/fix/chore/etc. correctly matches the nature of changes in my pull request.

### Tests

- [ ] My contribution adds new code, and I have added tests to cover it.
- [ ] My contribution modifies existing code, and I have updated the tests to reflect these changes.
- [ ] All new and existing tests pass locally with my changes.
- [ ] Code coverage remains at or above the configured threshold.

### Documentation

_No response_

### Versioning

_No response_

Reviewed-on: #45
Co-authored-by: Naomi Carrigan <commits@nhcarrigan.com>
Co-committed-by: Naomi Carrigan <commits@nhcarrigan.com>

src/lib/components/AchievementNotification.svelte

@@ -0,0 +1,202 @@
+<script lang="ts">
+  import { onMount } from "svelte";
+  import { fade, fly } from "svelte/transition";
+  import { cubicOut } from "svelte/easing";
+  import { listen } from "@tauri-apps/api/event";
+  import type { AchievementUnlockedEvent } from "$lib/types/achievements";
+
+  let achievements = $state<AchievementUnlockedEvent[]>([]);
+  let currentAchievement = $state<AchievementUnlockedEvent | null>(null);
+  let showNotification = $state(false);
+
+  onMount(() => {
+    let unlisten: (() => void) | undefined;
+
+    const setupListener = async () => {
+      unlisten = await listen<AchievementUnlockedEvent>("achievement:unlocked", (event) => {
+        achievements.push(event.payload);
+        if (!showNotification) {
+          showNext();
+        }
+      });
+    };
+
+    setupListener();
+
+    return () => {
+      if (unlisten) {
+        unlisten();
+      }
+    };
+  });
+
+  function showNext() {
+    if (achievements.length > 0) {
+      currentAchievement = achievements.shift() || null;
+      showNotification = true;
+
+      // Auto-hide after 5 seconds
+      setTimeout(() => {
+        showNotification = false;
+        // Show next achievement after animation completes
+        setTimeout(() => showNext(), 300);
+      }, 5000);
+    }
+  }
+
+  function dismiss() {
+    showNotification = false;
+    // Show next achievement after animation completes
+    setTimeout(() => showNext(), 300);
+  }
+
+  function getRarityColor(rarity: string): string {
+    switch (rarity) {
+      case "legendary":
+        return "from-yellow-400 to-orange-500";
+      case "epic":
+        return "from-purple-400 to-pink-500";
+      case "rare":
+        return "from-blue-400 to-indigo-500";
+      default:
+        return "from-green-400 to-emerald-500";
+    }
+  }
+
+  function getAchievementRarity(id: string): string {
+    // Determine rarity based on achievement ID
+    if (id === "TokenMaster") return "legendary";
+    if (["CodeMachine", "Unstoppable"].includes(id)) return "epic";
+    if (
+      [
+        "BlossomingCoder",
+        "CodeWizard",
+        "MasterBuilder",
+        "EnduranceChamp",
+        "DeepDive",
+        "CreativeCoder",
+      ].includes(id)
+    )
+      return "rare";
+    return "common";
+  }
+</script>
+
+{#if showNotification && currentAchievement}
+  <div
+    class="fixed top-20 right-4 z-50 max-w-sm"
+    in:fly={{ x: 300, duration: 500, easing: cubicOut }}
+    out:fade={{ duration: 300 }}
+  >
+    <!-- Backdrop with animated gradient border -->
+    <div class="relative p-[2px] rounded-lg overflow-hidden">
+      <!-- Animated gradient border -->
+      <div
+        class="absolute inset-0 bg-gradient-to-r {getRarityColor(
+          getAchievementRarity(currentAchievement.achievement.id)
+        )} animate-pulse"
+      ></div>
+
+      <!-- Main notification content -->
+      <div class="relative bg-[var(--bg-primary)] rounded-lg p-4 shadow-2xl backdrop-blur-sm">
+        <button
+          onclick={dismiss}
+          onkeydown={(e) => e.key === "Enter" && dismiss()}
+          class="absolute top-2 right-2 text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200 transition-colors"
+          aria-label="Dismiss notification"
+        >
+          <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              d="M6 18L18 6M6 6l12 12"
+            ></path>
+          </svg>
+        </button>
+
+        <div class="flex items-start gap-4">
+          <!-- Icon with animated sparkles -->
+          <div class="relative flex-shrink-0">
+            <div class="text-5xl animate-bounce">{currentAchievement.achievement.icon}</div>
+
+            <!-- Sparkle animations -->
+            <div class="absolute -top-1 -right-1 text-yellow-400 animate-ping">✨</div>
+            <div
+              class="absolute -bottom-1 -left-1 text-yellow-400 animate-ping animation-delay-200"
+            >
+              ✨
+            </div>
+            <div class="absolute top-1/2 -right-2 text-yellow-400 animate-ping animation-delay-400">
+              ✨
+            </div>
+          </div>
+
+          <!-- Text content -->
+          <div class="flex-1 min-w-0 pt-1">
+            <h3
+              class="text-sm font-semibold text-gray-500 dark:text-gray-400 uppercase tracking-wide"
+            >
+              Achievement Unlocked!
+            </h3>
+            <p class="text-lg font-bold text-[var(--text-primary)] mt-1">
+              {currentAchievement.achievement.name}
+            </p>
+            <p class="text-sm text-gray-600 dark:text-gray-400 mt-1">
+              {currentAchievement.achievement.description}
+            </p>
+
+            <!-- Rarity badge -->
+            <div class="mt-2 inline-flex items-center">
+              <span
+                class="px-2 py-1 text-xs font-medium rounded-full bg-gradient-to-r {getRarityColor(
+                  getAchievementRarity(currentAchievement.achievement.id)
+                )} text-white capitalize"
+              >
+                {getAchievementRarity(currentAchievement.achievement.id)}
+              </span>
+            </div>
+          </div>
+        </div>
+
+        <!-- Celebration confetti effect (CSS only) -->
+        <div class="absolute inset-0 pointer-events-none overflow-hidden rounded-lg">
+          {#each Array(10) as _ (_)}
+            <div
+              class="absolute w-2 h-2 bg-gradient-to-br {getRarityColor(
+                getAchievementRarity(currentAchievement.achievement.id)
+              )} rounded-full animate-fall"
+              style="left: {Math.random() * 100}%; animation-delay: {Math.random() *
+                2}s; animation-duration: {2 + Math.random() * 2}s;"
+            ></div>
+          {/each}
+        </div>
+      </div>
+    </div>
+  </div>
+{/if}
+
+<style>
+  @keyframes fall {
+    0% {
+      transform: translateY(-20px) rotate(0deg);
+      opacity: 1;
+    }
+    100% {
+      transform: translateY(400px) rotate(720deg);
+      opacity: 0;
+    }
+  }
+
+  .animate-fall {
+    animation: fall linear infinite;
+  }
+
+  .animation-delay-200 {
+    animation-delay: 200ms;
+  }
+
+  .animation-delay-400 {
+    animation-delay: 400ms;
+  }
+</style>

src/lib/components/AchievementsPanel.svelte

@@ -0,0 +1,266 @@
+<script lang="ts">
+  import { slide } from "svelte/transition";
+  import { quintOut } from "svelte/easing";
+  import {
+    achievementsStore,
+    achievementProgress,
+    achievementCategories,
+  } from "$lib/stores/achievements";
+  import type { Achievement } from "$lib/types/achievements";
+
+  interface Props {
+    isOpen: boolean;
+    onClose?: () => void;
+  }
+
+  const { isOpen = $bindable(false), onClose }: Props = $props();
+  let selectedCategory = $state<string | null>(null);
+
+  const achievementsState = $derived($achievementsStore);
+  const progress = $derived($achievementProgress);
+
+  function getRarityColor(rarity: string): string {
+    switch (rarity) {
+      case "legendary":
+        return "text-yellow-500 dark:text-yellow-400";
+      case "epic":
+        return "text-purple-500 dark:text-purple-400";
+      case "rare":
+        return "text-blue-500 dark:text-blue-400";
+      default:
+        return "text-green-500 dark:text-green-400";
+    }
+  }
+
+  function getRarityBg(rarity: string): string {
+    switch (rarity) {
+      case "legendary":
+        return "bg-yellow-500/10";
+      case "epic":
+        return "bg-purple-500/10";
+      case "rare":
+        return "bg-blue-500/10";
+      default:
+        return "bg-green-500/10";
+    }
+  }
+
+  function formatDate(date: Date | undefined): string {
+    if (!date) return "";
+    return new Date(date).toLocaleDateString("en-US", {
+      month: "short",
+      day: "numeric",
+      year: "numeric",
+    });
+  }
+
+  function getAchievementsForCategory(categoryIds: string[]): Achievement[] {
+    return categoryIds
+      .map(
+        (id) => achievementsState.achievements[id as keyof typeof achievementsState.achievements]
+      )
+      .filter(Boolean);
+  }
+</script>
+
+<!-- Achievements panel -->
+{#if isOpen}
+  <div
+    class="fixed inset-0 bg-black/50 z-40"
+    onclick={onClose}
+    onkeydown={(e) => e.key === "Escape" && onClose?.()}
+    role="button"
+    tabindex="-1"
+    aria-label="Close achievements panel"
+    transition:slide={{ duration: 300, easing: quintOut }}
+  ></div>
+
+  <div
+    class="fixed left-0 top-0 h-full w-96 bg-[var(--bg-primary)] border-r border-[var(--border-color)]
+           shadow-2xl z-50 flex flex-col"
+    transition:slide={{ duration: 300, easing: quintOut, axis: "x" }}
+  >
+    <!-- Header -->
+    <div class="p-6 border-b border-[var(--border-color)]">
+      <div class="flex items-center justify-between">
+        <h2 class="text-2xl font-bold text-[var(--text-primary)]">Achievements</h2>
+        <button
+          onclick={onClose}
+          onkeydown={(e) => e.key === "Enter" && onClose?.()}
+          class="text-gray-500 hover:text-gray-700 dark:text-gray-400 dark:hover:text-gray-200"
+          aria-label="Close achievements panel"
+        >
+          <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              d="M6 18L18 6M6 6l12 12"
+            ></path>
+          </svg>
+        </button>
+      </div>
+
+      <!-- Overall progress -->
+      <div class="mt-4">
+        <div
+          class="flex items-center justify-between text-sm text-gray-600 dark:text-gray-400 mb-2"
+        >
+          <span>{progress.unlocked} / {progress.total} Unlocked</span>
+          <span>{progress.percentage}%</span>
+        </div>
+        <div class="w-full bg-gray-200 dark:bg-gray-700 rounded-full h-2">
+          <div
+            class="bg-gradient-to-r from-[var(--accent-primary)] to-[var(--accent-secondary)] h-2 rounded-full transition-all duration-500"
+            style="width: {progress.percentage}%"
+          ></div>
+        </div>
+      </div>
+    </div>
+
+    <!-- Categories -->
+    <div class="flex-1 overflow-y-auto">
+      {#each achievementCategories as category (category.name)}
+        {@const achievements = getAchievementsForCategory(category.ids)}
+        {@const unlockedCount = achievements.filter((a) => a.unlocked).length}
+
+        <div class="border-b border-[var(--border-color)]">
+          <button
+            onclick={() =>
+              (selectedCategory = selectedCategory === category.name ? null : category.name)}
+            onkeydown={(e) =>
+              e.key === "Enter" &&
+              (selectedCategory = selectedCategory === category.name ? null : category.name)}
+            class="w-full p-4 text-left hover:bg-[var(--bg-secondary)] transition-colors"
+          >
+            <div class="flex items-center justify-between">
+              <div>
+                <h3 class="font-semibold text-[var(--text-primary)]">{category.name}</h3>
+                <p class="text-sm text-gray-600 dark:text-gray-400">{category.description}</p>
+              </div>
+              <div class="flex items-center gap-2">
+                <span class="text-sm text-gray-600 dark:text-gray-400">
+                  {unlockedCount} / {achievements.length}
+                </span>
+                <svg
+                  class="w-5 h-5 transition-transform {selectedCategory === category.name
+                    ? 'rotate-180'
+                    : ''}"
+                  fill="none"
+                  stroke="currentColor"
+                  viewBox="0 0 24 24"
+                >
+                  <path
+                    stroke-linecap="round"
+                    stroke-linejoin="round"
+                    stroke-width="2"
+                    d="M19 9l-7 7-7-7"
+                  ></path>
+                </svg>
+              </div>
+            </div>
+          </button>
+
+          {#if selectedCategory === category.name}
+            <div class="p-4 space-y-3" transition:slide={{ duration: 200, easing: quintOut }}>
+              {#each achievements as achievement (achievement.id)}
+                <div
+                  class="p-3 rounded-lg border {achievement.unlocked
+                    ? 'border-[var(--border-color)] bg-[var(--bg-secondary)]'
+                    : 'border-gray-300 dark:border-gray-600 bg-gray-100 dark:bg-gray-800 opacity-50'}"
+                >
+                  <div class="flex items-start gap-3">
+                    <!-- Icon -->
+                    <div class="text-3xl flex-shrink-0 {achievement.unlocked ? '' : 'grayscale'}">
+                      {achievement.icon}
+                    </div>
+
+                    <!-- Details -->
+                    <div class="flex-1 min-w-0">
+                      <div class="flex items-center gap-2">
+                        <h4 class="font-semibold text-[var(--text-primary)]">
+                          {achievement.name}
+                        </h4>
+                        <span
+                          class="text-xs px-2 py-0.5 rounded-full {getRarityBg(
+                            achievement.rarity
+                          )} {getRarityColor(achievement.rarity)} capitalize"
+                        >
+                          {achievement.rarity}
+                        </span>
+                      </div>
+                      <p class="text-sm text-gray-600 dark:text-gray-400 mt-1">
+                        {achievement.description}
+                      </p>
+
+                      {#if achievement.unlocked && achievement.unlockedAt}
+                        <p class="text-xs text-gray-500 dark:text-gray-500 mt-2">
+                          Unlocked {formatDate(achievement.unlockedAt)}
+                        </p>
+                      {:else if achievement.maxProgress && achievement.progress !== undefined}
+                        <!-- Progress bar for locked achievements -->
+                        <div class="mt-2">
+                          <div class="flex items-center justify-between text-xs text-gray-500 mb-1">
+                            <span>Progress</span>
+                            <span>{achievement.progress} / {achievement.maxProgress}</span>
+                          </div>
+                          <div class="w-full bg-gray-300 dark:bg-gray-700 rounded-full h-1.5">
+                            <div
+                              class="bg-gray-500 h-1.5 rounded-full transition-all duration-300"
+                              style="width: {Math.min(
+                                (achievement.progress / achievement.maxProgress) * 100,
+                                100
+                              )}%"
+                            ></div>
+                          </div>
+                        </div>
+                      {/if}
+                    </div>
+                  </div>
+                </div>
+              {/each}
+            </div>
+          {/if}
+        </div>
+      {/each}
+    </div>
+
+    <!-- Footer with last unlocked -->
+    {#if achievementsState.lastUnlocked}
+      <div class="p-4 border-t border-[var(--border-color)] bg-[var(--bg-secondary)]">
+        <p class="text-sm text-gray-600 dark:text-gray-400 mb-1">Last Unlocked:</p>
+        <div class="flex items-center gap-2">
+          <span class="text-xl">{achievementsState.lastUnlocked.icon}</span>
+          <div>
+            <p class="font-semibold text-[var(--text-primary)]">
+              {achievementsState.lastUnlocked.name}
+            </p>
+            <p class="text-xs text-gray-500">
+              {formatDate(achievementsState.lastUnlocked.unlockedAt)}
+            </p>
+          </div>
+        </div>
+      </div>
+    {/if}
+  </div>
+{/if}
+
+<style>
+  /* Custom scrollbar for achievement list */
+  :global(.overflow-y-auto::-webkit-scrollbar) {
+    width: 8px;
+  }
+
+  :global(.overflow-y-auto::-webkit-scrollbar-track) {
+    background: var(--bg-secondary);
+  }
+
+  :global(.overflow-y-auto::-webkit-scrollbar-thumb) {
+    background: var(--border-color);
+    border-radius: 4px;
+  }
+
+  :global(.overflow-y-auto::-webkit-scrollbar-thumb:hover) {
+    background: var(--accent-primary);
+  }
+</style>

src/lib/components/InputBar.svelte

@@ -54,7 +54,7 @@
       disabled={!isConnected || isSubmitting}
       rows={1}
       class="w-full px-4 py-3 bg-[var(--bg-secondary)] border border-[var(--border-color)]
-             rounded-lg text-white placeholder-gray-500 resize-none
+             rounded-lg text-[var(--text-primary)] placeholder-gray-500 resize-none
              focus:outline-none focus:border-[var(--accent-primary)] focus:ring-1 focus:ring-[var(--accent-primary)]
              disabled:opacity-50 disabled:cursor-not-allowed
              transition-all duration-200"

src/lib/components/StatsDisplay.svelte

@@ -0,0 +1,168 @@
+<script lang="ts">
+  import { formattedStats } from "$lib/stores/stats";
+  import { fade } from "svelte/transition";
+
+  let showToolsBreakdown = false;
+</script>
+
+<div class="stats-display" transition:fade={{ duration: 200 }}>
+  <div class="stats-row">
+    <span class="stat-label">Duration:</span>
+    <span class="stat-value">{$formattedStats.sessionDuration}</span>
+  </div>
+
+  <div class="stats-row">
+    <span class="stat-label">Messages:</span>
+    <span class="stat-value">{$formattedStats.messagesSession}</span>
+    <span class="stat-secondary">/ {$formattedStats.messagesTotal}</span>
+  </div>
+
+  <div class="stats-section">
+    <h3>Tokens & Cost</h3>
+    <div class="stat-row">
+      <span class="stat-label">Session:</span>
+      <span class="stat-value">{$formattedStats.sessionTokens}</span>
+      <span class="stat-cost">{$formattedStats.sessionCost}</span>
+    </div>
+    <div class="stat-row stat-detail">
+      <span class="stat-label">Input:</span>
+      <span class="stat-value">{$formattedStats.sessionInputTokens}</span>
+    </div>
+    <div class="stat-row stat-detail">
+      <span class="stat-label">Output:</span>
+      <span class="stat-value">{$formattedStats.sessionOutputTokens}</span>
+    </div>
+    <div class="stat-row stat-highlight">
+      <span class="stat-label">Total:</span>
+      <span class="stat-value">{$formattedStats.totalTokens}</span>
+      <span class="stat-cost">{$formattedStats.totalCost}</span>
+    </div>
+  </div>
+
+  <div class="stats-section">
+    <h3>Activity</h3>
+    <div class="stat-row">
+      <span class="stat-label">Code blocks:</span>
+      <span class="stat-value">{$formattedStats.codeBlocksSession}</span>
+      <span class="stat-secondary">/ {$formattedStats.codeBlocksTotal}</span>
+    </div>
+    <div class="stat-row">
+      <span class="stat-label">Files edited:</span>
+      <span class="stat-value">{$formattedStats.filesEditedSession}</span>
+      <span class="stat-secondary">/ {$formattedStats.filesEditedTotal}</span>
+    </div>
+    <div class="stat-row">
+      <span class="stat-label">Files created:</span>
+      <span class="stat-value">{$formattedStats.filesCreatedSession}</span>
+      <span class="stat-secondary">/ {$formattedStats.filesCreatedTotal}</span>
+    </div>
+  </div>
+
+  {#if Object.keys($formattedStats.sessionToolsUsage).length > 0}
+    <div class="stats-section">
+      <h3 class="tools-header">
+        <button class="tools-toggle" onclick={() => (showToolsBreakdown = !showToolsBreakdown)}>
+          Tools Used
+          <span class="toggle-icon">{showToolsBreakdown ? "▼" : "▶"}</span>
+        </button>
+      </h3>
+      {#if showToolsBreakdown}
+        <div class="tools-breakdown">
+          {#each Object.entries($formattedStats.sessionToolsUsage).sort((a, b) => b[1] - a[1]) as [tool, count] (tool)}
+            <div class="stat-row stat-detail">
+              <span class="stat-label">{tool}:</span>
+              <span class="stat-value">{count}</span>
+            </div>
+          {/each}
+        </div>
+      {/if}
+    </div>
+  {/if}
+
+  <div class="model-info">
+    <span class="model-label">Model:</span>
+    <span class="model-value">{$formattedStats.model}</span>
+  </div>
+</div>
+
+<style>
+  .stats-display {
+    display: flex;
+    flex-direction: column;
+    gap: 1rem;
+    padding: 0.75rem;
+    background: var(--bg-secondary);
+    border: 1px solid var(--border-color);
+    border-radius: 8px;
+    font-size: 0.85rem;
+    box-shadow:
+      0 4px 6px rgba(0, 0, 0, 0.1),
+      0 1px 3px rgba(0, 0, 0, 0.08);
+  }
+
+  .stats-section {
+    display: flex;
+    flex-direction: column;
+    gap: 0.25rem;
+  }
+
+  .stats-section h3 {
+    font-size: 0.9rem;
+    font-weight: 600;
+    color: var(--text-primary);
+    margin: 0 0 0.25rem 0;
+    padding-bottom: 0.25rem;
+    border-bottom: 1px solid var(--border-color);
+  }
+
+  .stat-row {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 0.125rem 0;
+  }
+
+  .stat-detail {
+    margin-left: 1rem;
+    font-size: 0.8rem;
+    opacity: 0.8;
+  }
+
+  .stat-highlight {
+    font-weight: 600;
+    color: var(--accent-primary);
+    margin-top: 0.25rem;
+    padding-top: 0.25rem;
+    border-top: 1px solid var(--border-color);
+  }
+
+  .stat-label {
+    color: var(--text-secondary, #9ca3af);
+  }
+
+  .stat-value {
+    font-family: var(--font-mono, monospace);
+    color: var(--text-primary, #e5e7eb);
+  }
+
+  .model-info {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 0.5rem;
+    background: var(--bg-primary);
+    border-radius: 4px;
+    font-size: 0.8rem;
+  }
+
+  .model-label {
+    color: var(--text-secondary, #9ca3af);
+    font-weight: 600;
+  }
+
+  .model-value {
+    font-family: var(--font-mono, monospace);
+    color: var(--text-primary, #e5e7eb);
+    font-size: 0.75rem;
+  }
+</style>

src/lib/components/StatusBar.svelte

@@ -1,4 +1,10 @@
 <script lang="ts">
+  interface Props {
+    onToggleAchievements?: () => void;
+  }
+
+  const { onToggleAchievements = () => {} }: Props = $props();
+
   import { invoke } from "@tauri-apps/api/core";
   import { getVersion } from "@tauri-apps/api/app";
   import { open } from "@tauri-apps/plugin-dialog";
@@ -7,6 +13,8 @@
   import { configStore, type HikariConfig } from "$lib/stores/config";
   import type { ConnectionStatus } from "$lib/types/messages";
   import { onMount } from "svelte";
+  import StatsDisplay from "./StatsDisplay.svelte";
+  import { achievementProgress } from "$lib/stores/achievements";
 
   const DISCORD_URL = "https://chat.nhcarrigan.com";
 
@@ -16,6 +24,8 @@
   let isConnecting = $state(false);
   let grantedToolsList: string[] = $state([]);
   let appVersion = $state("");
+  let showStats = $state(false);
+  const progress = $derived($achievementProgress);
   let currentConfig: HikariConfig = $state({
     model: null,
     api_key: null,
@@ -126,6 +136,10 @@
         return "Disconnected";
     }
   }
+
+  function toggleAchievements() {
+    onToggleAchievements();
+  }
 </script>
 
 <div
@@ -167,6 +181,36 @@
   </div>
 
   <div class="flex items-center gap-3">
+    <button
+      onclick={toggleAchievements}
+      class="p-1 text-gray-500 hover:text-[var(--accent-primary)] transition-colors relative"
+      title="Achievements"
+    >
+      <span class="text-lg">🏆</span>
+      {#if progress.unlocked > 0}
+        <span
+          class="absolute -top-1 -right-1 bg-[var(--accent-primary)] text-white text-xs rounded-full w-4 h-4 flex items-center justify-center text-[10px]"
+        >
+          {progress.unlocked}
+        </span>
+      {/if}
+    </button>
+    <button
+      onclick={() => (showStats = !showStats)}
+      class="p-1 text-gray-500 hover:text-[var(--accent-primary)] transition-colors {showStats
+        ? 'text-[var(--accent-primary)]'
+        : ''}"
+      title="Usage Stats"
+    >
+      <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+        <path
+          stroke-linecap="round"
+          stroke-linejoin="round"
+          stroke-width="2"
+          d="M9 19v-6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2a2 2 0 002-2zM13 19v-4a2 2 0 00-2-2H9a2 2 0 00-2 2v4a2 2 0 002 2h2a2 2 0 002-2zM21 19V8a2 2 0 00-2-2h-2a2 2 0 00-2 2v11a2 2 0 002 2h2a2 2 0 002-2z"
+        />
+      </svg>
+    </button>
     <button
       onclick={configStore.openSidebar}
       class="p-1 text-gray-500 hover:text-[var(--accent-primary)] transition-colors"
@@ -201,6 +245,12 @@
     {#if appVersion}
       <span class="text-xs text-gray-600">v{appVersion}</span>
     {/if}
+
+    {#if showStats}
+      <div class="absolute top-full right-0 mt-2 mr-4 z-50">
+        <StatsDisplay />
+      </div>
+    {/if}
     {#if connectionStatus === "connected"}
       <button
         onclick={handleDisconnect}
@@ -219,3 +269,12 @@
     {/if}
   </div>
 </div>
+
+{#if showStats}
+  <!-- svelte-ignore a11y_click_events_have_key_events -->
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <div class="fixed inset-0 z-40" onclick={() => (showStats = false)}></div>
+  <div class="fixed top-14 right-4 z-50">
+    <StatsDisplay />
+  </div>
+{/if}

src/lib/components/Terminal.svelte

@@ -25,17 +25,17 @@
   function getLineClass(type: string): string {
     switch (type) {
       case "user":
-        return "text-cyan-400";
+        return "terminal-user";
       case "assistant":
-        return "text-gray-100";
+        return "terminal-assistant";
       case "system":
-        return "text-gray-500 italic";
+        return "terminal-system italic";
       case "tool":
-        return "text-purple-400";
+        return "terminal-tool";
       case "error":
-        return "text-red-400";
+        return "terminal-error";
       default:
-        return "text-gray-300";
+        return "terminal-default";
     }
   }
 
@@ -75,7 +75,7 @@
       <div class="w-3 h-3 rounded-full bg-yellow-500"></div>
       <div class="w-3 h-3 rounded-full bg-green-500"></div>
     </div>
-    <span class="text-sm text-gray-400 ml-2">Terminal</span>
+    <span class="text-sm terminal-header-text ml-2">Terminal</span>
   </div>
 
   <div
@@ -84,16 +84,18 @@
     class="terminal-content h-[calc(100%-40px)] overflow-y-auto p-4 font-mono text-sm"
   >
     {#if lines.length === 0}
-      <div class="text-gray-500 italic">Waiting for Claude... Type a message below to start!</div>
+      <div class="terminal-waiting italic">
+        Waiting for Claude... Type a message below to start!
+      </div>
     {:else}
       {#each lines as line (line.id)}
         <div class="terminal-line mb-2 {getLineClass(line.type)}">
-          <span class="text-gray-600 text-xs mr-2">{formatTime(line.timestamp)}</span>
+          <span class="terminal-timestamp text-xs mr-2">{formatTime(line.timestamp)}</span>
           {#if getLinePrefix(line.type)}
-            <span class="text-gray-500 mr-2">{getLinePrefix(line.type)}</span>
+            <span class="terminal-prefix mr-2">{getLinePrefix(line.type)}</span>
           {/if}
           {#if line.toolName}
-            <span class="text-purple-300 mr-2">[{line.toolName}]</span>
+            <span class="terminal-tool-name mr-2">[{line.toolName}]</span>
           {/if}
           <span class="whitespace-pre-wrap">{line.content}</span>
         </div>
@@ -107,4 +109,49 @@
     scrollbar-width: thin;
     scrollbar-color: var(--border-color) var(--bg-terminal);
   }
+
+  /* Terminal text colors that adapt to theme */
+  .terminal-user {
+    color: var(--terminal-user, #22d3ee);
+  }
+
+  .terminal-assistant {
+    color: var(--text-primary);
+  }
+
+  .terminal-system {
+    color: var(--text-secondary);
+  }
+
+  .terminal-tool {
+    color: var(--terminal-tool, #c084fc);
+  }
+
+  .terminal-error {
+    color: var(--terminal-error, #f87171);
+  }
+
+  .terminal-default {
+    color: var(--text-primary);
+  }
+
+  .terminal-timestamp {
+    color: var(--text-tertiary, #6b7280);
+  }
+
+  .terminal-prefix {
+    color: var(--text-secondary);
+  }
+
+  .terminal-tool-name {
+    color: var(--terminal-tool-name, #ddd6fe);
+  }
+
+  .terminal-waiting {
+    color: var(--text-secondary);
+  }
+
+  .terminal-header-text {
+    color: var(--text-secondary);
+  }
 </style>