<button class="phoenix-fire-btn">
  <div class="fire-particles">
    <div class="particle p1"></div>
    <div class="particle p2"></div>
    <div class="particle p3"></div>
    <div class="particle p4"></div>
    <div class="particle p5"></div>
    <div class="particle p6"></div>
    <div class="particle p7"></div>
    <div class="particle p8"></div>
  </div>
  <div class="flame-rings">
    <div class="flame-ring fr1"></div>
    <div class="flame-ring fr2"></div>
    <div class="flame-ring fr3"></div>
  </div>
  <div class="phoenix-core">
    <span class="phoenix-icon">🔥</span>
  </div>
  <div class="ember-trail">
    <div class="ember e1">✨</div>
    <div class="ember e2">⭐</div>
    <div class="ember e3">✨</div>
  </div>
</button>