feat: add typing carousel with promotional messages

- 5 rotating promotional commands with typing effect
- Progress bar and navigation dots
- Messages: instant deploy, DDoS protection, pricing, Telegram bot, regions

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

index.html

@@ -137,22 +137,44 @@
           </p>
         </div>
 
-        <!-- Interactive Command -->
-        <div class="w-full max-w-2xl mt-6 group">
-          <div class="bg-terminal-bg border border-terminal-border rounded flex items-center p-3 md:p-4 gap-3 shadow-lg group-hover:border-primary/50 transition-colors">
-            <span class="text-primary font-bold select-none">$</span>
-            <div class="flex-1 text-sm md:text-base flex items-center gap-2 overflow-x-auto">
-              <span class="text-terminal-purple">incus</span>
-              <span class="text-terminal-text">launch</span>
-              <span class="text-terminal-cyan">ubuntu:24.04</span>
-              <span class="text-terminal-amber">tokyo-1</span>
-              <span class="text-terminal-muted">--vm</span>
+        <!-- Typing Carousel -->
+        <div class="w-full max-w-3xl mt-6" x-data="typingCarousel()">
+          <div class="bg-terminal-bg border border-terminal-border rounded-lg overflow-hidden shadow-lg">
+            <!-- Terminal Header -->
+            <div class="bg-[#161b22] px-4 py-2 border-b border-terminal-border flex items-center gap-2">
+              <span class="text-terminal-muted text-xs">anvil-cli v2.4.0</span>
+              <span class="ml-auto text-xs text-terminal-muted" x-text="(currentIndex + 1) + '/' + commands.length"></span>
+            </div>
+            <!-- Command Display -->
+            <div class="p-4 md:p-6 min-h-[120px]">
+              <div class="flex items-start gap-3">
+                <span class="text-primary font-bold select-none">$</span>
+                <div class="flex-1">
+                  <div class="text-sm md:text-base flex flex-wrap items-center gap-1">
+                    <span class="text-terminal-text" x-html="displayedCommand"></span>
+                    <span class="text-primary cursor-blink text-lg" x-show="isTyping">▋</span>
+                  </div>
+                  <!-- Result Message -->
+                  <div class="mt-4 text-terminal-muted text-sm border-l-2 border-primary/50 pl-3 transition-opacity duration-300"
+                       :class="showResult ? 'opacity-100' : 'opacity-0'">
+                    <span class="text-primary">✓</span>
+                    <span x-text="commands[currentIndex]?.result"></span>
+                  </div>
+                </div>
+              </div>
+            </div>
+            <!-- Progress Bar -->
+            <div class="h-1 bg-terminal-border">
+              <div class="h-full bg-primary transition-all duration-100 ease-linear" :style="'width: ' + progress + '%'"></div>
             </div>
-            <span class="text-xs text-terminal-muted bg-terminal-border/30 px-2 py-1 rounded hidden sm:inline-block">ENTER ↵</span>
           </div>
-          <div class="pl-4 mt-2 text-xs text-terminal-muted flex items-center gap-2">
-            <span class="w-2 h-2 rounded-full bg-primary animate-pulse"></span>
-            Instance creating... (0.4s)
+          <!-- Navigation Dots -->
+          <div class="flex justify-center gap-2 mt-4">
+            <template x-for="(cmd, idx) in commands" :key="idx">
+              <button @click="goTo(idx)"
+                      class="w-2 h-2 rounded-full transition-all"
+                      :class="idx === currentIndex ? 'bg-primary w-6' : 'bg-terminal-border hover:bg-terminal-muted'"></button>
+            </template>
           </div>
         </div>
       </div>
@@ -353,6 +375,128 @@
 <!-- Alpine.js -->
 <script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.14.3/dist/cdn.min.js"></script>
 <script>
+  function typingCarousel() {
+    return {
+      commands: [
+        {
+          text: '<span class="text-terminal-purple">anvil</span> <span class="text-terminal-text">deploy</span> <span class="text-terminal-cyan">--tokyo</span> <span class="text-terminal-amber">--instant</span>',
+          plain: 'anvil deploy --tokyo --instant',
+          result: '0.4초 만에 서버 생성 완료. VM 부팅 대기? 그런 건 없습니다.'
+        },
+        {
+          text: '<span class="text-terminal-purple">anvil</span> <span class="text-terminal-text">protect</span> <span class="text-terminal-cyan">--ddos</span> <span class="text-terminal-amber">1Tbps+</span>',
+          plain: 'anvil protect --ddos 1Tbps+',
+          result: 'ForgeShield 무료 제공. DDoS 걱정은 이제 그만.'
+        },
+        {
+          text: '<span class="text-terminal-purple">anvil</span> <span class="text-terminal-text">pricing</span> <span class="text-terminal-cyan">--monthly</span> <span class="text-terminal-amber">₩7,000~</span>',
+          plain: 'anvil pricing --monthly ₩7,000~',
+          result: '커피 두 잔 값으로 나만의 서버를. 연간 결제 시 17% 할인.'
+        },
+        {
+          text: '<span class="text-terminal-purple">anvil</span> <span class="text-terminal-text">connect</span> <span class="text-terminal-cyan">@AnvilForgeBot</span>',
+          plain: 'anvil connect @AnvilForgeBot',
+          result: '텔레그램으로 서버 관리. 24시간 어디서든 컨트롤.'
+        },
+        {
+          text: '<span class="text-terminal-purple">anvil</span> <span class="text-terminal-text">regions</span> <span class="text-terminal-cyan">--list</span>',
+          plain: 'anvil regions --list',
+          result: '도쿄 · 오사카 · 서울 · 싱가포르. 아시아 전역 커버.'
+        },
+      ],
+      currentIndex: 0,
+      displayedCommand: '',
+      isTyping: true,
+      showResult: false,
+      progress: 0,
+      charIndex: 0,
+      intervalId: null,
+      progressId: null,
+
+      init() {
+        this.startTyping();
+      },
+
+      startTyping() {
+        this.isTyping = true;
+        this.showResult = false;
+        this.displayedCommand = '';
+        this.charIndex = 0;
+        this.progress = 0;
+
+        const plainText = this.commands[this.currentIndex].plain;
+        const htmlText = this.commands[this.currentIndex].text;
+
+        // Clear any existing intervals
+        if (this.intervalId) clearInterval(this.intervalId);
+        if (this.progressId) clearInterval(this.progressId);
+
+        // Typing effect
+        this.intervalId = setInterval(() => {
+          if (this.charIndex < plainText.length) {
+            this.charIndex++;
+            // Map plain text position to HTML
+            this.displayedCommand = this.getPartialHtml(htmlText, this.charIndex);
+          } else {
+            clearInterval(this.intervalId);
+            this.isTyping = false;
+            this.showResult = true;
+            this.startProgress();
+          }
+        }, 50);
+      },
+
+      getPartialHtml(html, charCount) {
+        let result = '';
+        let visibleChars = 0;
+        let inTag = false;
+
+        for (let i = 0; i < html.length && visibleChars < charCount; i++) {
+          if (html[i] === '<') inTag = true;
+          if (!inTag) visibleChars++;
+          result += html[i];
+          if (html[i] === '>') inTag = false;
+        }
+
+        // Close any open tags
+        const openTags = result.match(/<span[^>]*>/g) || [];
+        const closeTags = result.match(/<\/span>/g) || [];
+        const unclosed = openTags.length - closeTags.length;
+        for (let i = 0; i < unclosed; i++) {
+          result += '</span>';
+        }
+
+        return result;
+      },
+
+      startProgress() {
+        const duration = 4000; // 4 seconds display time
+        const interval = 50;
+        const step = (interval / duration) * 100;
+
+        this.progressId = setInterval(() => {
+          this.progress += step;
+          if (this.progress >= 100) {
+            clearInterval(this.progressId);
+            this.next();
+          }
+        }, interval);
+      },
+
+      next() {
+        this.currentIndex = (this.currentIndex + 1) % this.commands.length;
+        this.startTyping();
+      },
+
+      goTo(index) {
+        if (this.intervalId) clearInterval(this.intervalId);
+        if (this.progressId) clearInterval(this.progressId);
+        this.currentIndex = index;
+        this.startTyping();
+      }
+    };
+  }
+
   function pricingTerminal() {
     return {
       // State