Email Signature Generator

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      <div style="font-size:18px;font-weight:700;color:#0f172a">Nguyễn Thành Đạt</div>
      <div style="font-size:13px;color:#475569;margin-top:2px">Senior Fullstack Developer · <strong>Demetio</strong></div>
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      <div>✉ <a href="mailto:hi@datnt.dev" style="color:#818cf8;text-decoration:none">hi@datnt.dev</a></div>
      <div>☎ +84 123 456 789</div>
      <div>🌐 <a href="https://datnt.dev" style="color:#818cf8;text-decoration:none">datnt.dev</a></div>
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