AI Chat Interface — Sharp Glassmorphism

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<!--
Snippet Name: AI Chat Interface — Sharp Glassmorphism
Description: Frosted-glass chat panel over a vibrant animated gradient mesh, with a streaming reply, prompt chips, and a glass input bar.
Author: DevSnips Contributors
Usage Example: Drop into a vivid app shell as an AI assistant surface. Prompt chips and input bar are fully wired in preview.html. Requires a colored backdrop behind the panel for the glass to read.
-->
<div class="relative w-full max-w-2xl" data-chat="sg">

  <!-- Glass panel -->
  <div class="relative overflow-hidden rounded-2xl border border-white/20 bg-white/10 shadow-[0_8px_40px_-12px_rgba(99,102,241,0.45)] backdrop-blur-2xl">
    <!-- Top highlight -->
    <div class="pointer-events-none absolute inset-x-0 top-0 h-px bg-gradient-to-r from-transparent via-white/50 to-transparent" aria-hidden="true"></div>

    <!-- Header -->
    <div class="flex items-center justify-between gap-3 border-b border-white/15 px-5 py-4">
      <div class="flex items-center gap-3">
        <div class="sg-glow flex h-10 w-10 items-center justify-center rounded-xl border border-white/30 bg-white/20 text-white backdrop-blur">
          <svg class="h-5 w-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true">
            <path d="M12 3v3M12 18v3M3 12h3M18 12h3M5.6 5.6l2.1 2.1M16.3 16.3l2.1 2.1M5.6 18.4l2.1-2.1M16.3 7.7l2.1-2.1" />
            <circle cx="12" cy="12" r="3.2" />
          </svg>
        </div>
        <div class="leading-tight">
          <p class="font-sora text-[15px] font-semibold text-white">DevSnips Assistant</p>
          <p class="sg-mono mt-1 flex items-center gap-1.5 text-[11px] text-white/70">
            <span class="sg-dot"></span> online · glass-v2
          </p>
        </div>
      </div>
      <div class="flex items-center gap-1.5">
        <button type="button" class="sg-mono hidden rounded-lg border border-white/20 bg-white/5 px-2.5 py-1.5 text-[11px] text-white/80 transition-colors hover:bg-white/15 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/60 sm:block">History</button>
        <button type="button" aria-label="New chat" class="flex h-8 w-8 items-center justify-center rounded-lg border border-white/20 bg-white/5 text-white/80 transition-colors hover:bg-white/15 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/60">
          <svg class="h-4 w-4" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><path d="M12 5v14M5 12h14" /></svg>
        </button>
      </div>
    </div>

    <!-- Messages -->
    <div class="chat-scroll max-h-[440px] min-h-[340px] space-y-5 overflow-y-auto px-5 py-6" data-chat-messages>
      <!-- User -->
      <div class="flex justify-end">
        <div class="max-w-[80%] rounded-2xl rounded-br-md border border-white/25 bg-gradient-to-br from-fuchsia-500/40 to-purple-600/40 px-4 py-2.5 backdrop-blur-md">
          <p class="sg-mono mb-1 text-[10px] uppercase tracking-wider text-white/60">You</p>
          <p class="font-sora text-[14px] font-medium leading-relaxed text-white">How do I animate an accordion with the grid-rows trick?</p>
        </div>
      </div>
      <!-- Assistant -->
      <div class="flex justify-start gap-3">
        <div class="sg-glow mt-0.5 flex h-7 w-7 shrink-0 items-center justify-center rounded-lg border border-white/30 bg-white/20 backdrop-blur">
          <svg class="h-3.5 w-3.5 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><circle cx="12" cy="12" r="3.2" /><path d="M12 3v3M12 18v3M3 12h3M18 12h3" /></svg>
        </div>
        <div class="max-w-[82%] rounded-2xl rounded-tl-md border border-white/20 bg-white/10 px-4 py-2.5 backdrop-blur-md">
          <p class="sg-mono mb-1 text-[10px] uppercase tracking-wider text-white/60">Assistant</p>
          <p class="font-sora text-[14px] leading-relaxed text-white/90">
            Wrap the panel in <code class="sg-code">grid-rows-[0fr]</code>, animate to <code class="sg-code">grid-rows-[1fr]</code> with <code class="sg-code">transition-[grid-template-rows]</code>, and nest an <code class="sg-code">overflow-hidden</code> wrapper. The row grows from 0 to auto with zero layout cost.
          </p>
        </div>
      </div>
      <!-- Typing -->
      <div class="flex justify-start gap-3" data-chat-typing>
        <div class="sg-glow mt-0.5 flex h-7 w-7 shrink-0 items-center justify-center rounded-lg border border-white/30 bg-white/20 backdrop-blur">
          <svg class="h-3.5 w-3.5 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><circle cx="12" cy="12" r="3.2" /><path d="M12 3v3M12 18v3M3 12h3M18 12h3" /></svg>
        </div>
        <div class="flex items-center gap-1.5 rounded-2xl rounded-tl-md border border-white/20 bg-white/10 px-4 py-3 backdrop-blur-md">
          <span class="sg-typing-dot"></span>
          <span class="sg-typing-dot" style="animation-delay:.15s"></span>
          <span class="sg-typing-dot" style="animation-delay:.3s"></span>
        </div>
      </div>
    </div>

    <!-- Prompt suggestions -->
    <div class="flex flex-wrap gap-2 border-t border-white/15 px-5 py-3">
      <button type="button" class="chat-prompt sg-mono rounded-full border border-white/20 bg-white/10 px-3 py-1.5 text-[11px] text-white/85 backdrop-blur transition-colors hover:bg-white/20 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/60">Explain CSS grid</button>
      <button type="button" class="chat-prompt sg-mono rounded-full border border-white/20 bg-white/10 px-3 py-1.5 text-[11px] text-white/85 backdrop-blur transition-colors hover:bg-white/20 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/60">Build a toast</button>
      <button type="button" class="chat-prompt sg-mono rounded-full border border-white/20 bg-white/10 px-3 py-1.5 text-[11px] text-white/85 backdrop-blur transition-colors hover:bg-white/20 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/60">Refactor my code</button>
    </div>

    <!-- Input -->
    <form class="flex items-center gap-2 border-t border-white/15 px-5 py-4" data-chat-form>
      <div class="relative flex-1">
        <input
          type="text"
          name="prompt"
          placeholder="Ask anything…"
          aria-label="Message DevSnips Assistant"
          class="w-full rounded-xl border border-white/20 bg-white/10 px-4 py-2.5 font-sora text-[14px] text-white placeholder:text-white/40 backdrop-blur focus:border-white/40 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/40"
        />
      </div>
      <button type="submit" class="sg-glow flex shrink-0 items-center gap-2 rounded-xl border border-white/30 bg-gradient-to-r from-fuchsia-500 to-indigo-500 px-4 py-2.5 font-sora text-[13px] font-semibold text-white transition-opacity hover:opacity-90 focus:outline-none focus-visible:ring-2 focus-visible:ring-white/60">
        Send
        <svg class="h-3.5 w-3.5" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" aria-hidden="true"><path d="M5 12h14M13 6l6 6-6 6" /></svg>
      </button>
    </form>
  </div>

  <style>
    [data-chat="sg"] .sg-mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }
    [data-chat="sg"] .font-sora { font-family: 'Sora', sans-serif; }
    [data-chat="sg"] .sg-code { font-family: 'JetBrains Mono', monospace; font-size: 12px; background: rgba(255,255,255,0.14); padding: 1px 5px; border-radius: 4px; color: #fff; }
    [data-chat="sg"] .sg-dot { display: inline-block; height: 6px; width: 6px; border-radius: 9999px; background: #6ee7ff; box-shadow: 0 0 8px #6ee7ff; }
    [data-chat="sg"] .sg-typing-dot { height: 7px; width: 7px; border-radius: 9999px; background: rgba(255,255,255,0.7); animation: sg-bounce 1.2s infinite ease-in-out; }
    [data-chat="sg"] .sg-glow { box-shadow: 0 0 0 1px rgba(255,255,255,0.08), 0 4px 20px -4px rgba(168,85,247,0.5); }
    @keyframes sg-bounce { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-5px); opacity: 1; } }
    [data-chat="sg"] .chat-scroll::-webkit-scrollbar { width: 6px; }
    [data-chat="sg"] .chat-scroll::-webkit-scrollbar-track { background: transparent; }
    [data-chat="sg"] .chat-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 9999px; }
    [data-chat="sg"] .chat-scroll { scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.25) transparent; }
  </style>

  <script>
    (function () {
      var root = document.currentScript.closest('[data-chat="sg"]');
      if (!root) return;
      var form = root.querySelector('[data-chat-form]');
      var list = root.querySelector('[data-chat-messages]');
      var input = form && form.querySelector('input[name="prompt"]');
      var typing = root.querySelector('[data-chat-typing]');
      if (!form || !list || !input) return;

      function addUser(text) {
        if (!text.trim()) return;
        var row = document.createElement('div');
        row.className = 'flex justify-end';
        row.innerHTML = '<div class="max-w-[80%] rounded-2xl rounded-br-md border border-white/25 bg-gradient-to-br from-fuchsia-500/40 to-purple-600/40 px-4 py-2.5 backdrop-blur-md"><p class="sg-mono mb-1 text-[10px] uppercase tracking-wider text-white/60">You</p><p class="font-sora text-[14px] font-medium leading-relaxed text-white"></p></div>';
        row.querySelector('p:last-child').textContent = text;
        list.appendChild(row);
        list.scrollTop = list.scrollHeight;
      }

      function addBot(text) {
        var row = document.createElement('div');
        row.className = 'flex justify-start gap-3';
        row.innerHTML = '<div class="sg-glow mt-0.5 flex h-7 w-7 shrink-0 items-center justify-center rounded-lg border border-white/30 bg-white/20 backdrop-blur"><svg class="h-3.5 w-3.5 text-white" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><circle cx="12" cy="12" r="3.2" /><path d="M12 3v3M12 18v3M3 12h3M18 12h3" /></svg></div><div class="max-w-[82%] rounded-2xl rounded-tl-md border border-white/20 bg-white/10 px-4 py-2.5 backdrop-blur-md"><p class="sg-mono mb-1 text-[10px] uppercase tracking-wider text-white/60">Assistant</p><p class="font-sora text-[14px] leading-relaxed text-white/90"></p></div>';
        row.querySelector('p:last-child').textContent = text;
        list.appendChild(row);
        list.scrollTop = list.scrollHeight;
      }

      var responses = [
        'Use the grid-rows-[0fr] to [1fr] trick wrapped in overflow-hidden for buttery height animation.',
        'Try a single-open mode: close sibling items on open and toggle aria-expanded on the trigger.',
        'Reach for focus-visible:ring utilities plus role="region" and aria-labelledby for accessibility.',
        'Drop the snippet into a docs layout — each item toggles independently with no extra wiring.'
      ];
      var i = 0;

      function reply(text) {
        addUser(text);
        if (typing) { typing.style.display = 'flex'; list.scrollTop = list.scrollHeight; }
        setTimeout(function () {
          if (typing) typing.style.display = 'none';
          addBot(responses[i % responses.length]); i++;
        }, 1100);
      }

      form.addEventListener('submit', function (e) {
        e.preventDefault();
        reply(input.value);
        input.value = '';
      });

      root.querySelectorAll('.chat-prompt').forEach(function (chip) {
        chip.addEventListener('click', function () { reply(chip.textContent.trim()); });
      });
    })();
  </script>
</div>