.app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index: 30;
  background: rgba(11, 17, 26, 0.82);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
}
.app-header img { width: 40px; height: 40px; object-fit: cover; }
.app-header h1 { margin: 0; font-size: 1.02rem; }
.app-header p { margin: 1px 0 0; color: rgba(191,204,228,.6); font-size: .77rem; }
.menu-toggle { margin-left: auto; width: 50px; height: 50px; border: 1px solid rgba(255,255,255,.24); background: rgba(210, 56, 79, .82); position: relative; overflow: hidden; cursor: pointer; }
.menu-toggle .openbtn-area { transition: all .4s; }
.menu-toggle span { position: absolute; background: #fff; display: inline-block; left: 13px; height: 3px; transition: all .4s; width: 50%; }
.menu-toggle span:nth-of-type(1) { top: 16px; }
.menu-toggle span:nth-of-type(2) { top: 24px; }
.menu-toggle span:nth-of-type(3) { top: 32px; }
.menu-toggle.active .openbtn-area { transform: rotateX(360deg); top: -25px; position: relative; left: -2px; }
.menu-toggle.active span:nth-child(1){ width: 52%; top: 24px; left: 12px; transform: rotate(-135deg); }
.menu-toggle.active span:nth-child(2){ opacity:0; }
.menu-toggle.active span:nth-child(3){ width: 52%; top: 24px; left: 12px; transform: rotate(135deg); }