.glass-action-btn {
  --glass-light: rgba(255, 255, 255, 0.15);
  --glass-dark: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-highlight: rgba(255, 255, 255, 0.25);
  --glass-shadow: rgba(0, 0, 0, 0.1);
  
  color: #ffffff;
  position: relative;
  background: linear-gradient(135deg, var(--glass-light), var(--glass-dark));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  font-family: 'Montserrat', 'Segoe UI', sans-serif;
  letter-spacing: 1.2px;
  box-shadow:
    0 8px 32px var(--glass-shadow),
    inset 0 1px 0 var(--glass-highlight),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  will-change: transform, box-shadow, backdrop-filter;
  overflow: hidden;
  z-index: 1;
}

/* Main shine layer */
.glass-action-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transform: skewX(-15deg);
  transition: left 0.8s ease-in-out;
  z-index: 1;
}

/* Top highlight */
.glass-action-btn::after {
  content: '';
  position: absolute;
  top: 1px;
  left: 1px;
  right: 1px;
  height: 45%;
  background: linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.2),
    rgba(255, 255, 255, 0.05)
  );
  border-radius: 50px 50px 0 0;
  z-index: 1;
}

/* Arrow effect */
.glass-action-btn span::after {
  content: '→';
  display: inline-block;
  margin-left: 10px;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  opacity: 0.8;
  transform: translateX(-6px);
}

/* Hover states */
.glass-action-btn:hover {
  --glass-light: rgba(255, 255, 255, 0.2);
  --glass-dark: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-highlight: rgba(255, 255, 255, 0.3);
  
  transform: translateY(-2px) scale(1.02);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.15),
    inset 0 1px 0 var(--glass-highlight),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.glass-action-btn:hover::before {
  left: 100%;
}

.glass-action-btn:hover span::after {
  transform: translateX(4px);
  opacity: 1;
}

/* Active/Click state */
.glass-action-btn:active {
  --glass-light: rgba(255, 255, 255, 0.1);
  --glass-dark: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.15);
  
  transform: translateY(0) scale(0.98);
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.1),
    inset 0 2px 4px rgba(0, 0, 0, 0.1),
    inset 0 -1px 1px rgba(255, 255, 255, 0.1);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: all 0.1s ease-out;
}

/* Focus state for accessibility */
.glass-action-btn:focus {
  outline: none;
  box-shadow:
    0 0 0 3px rgba(255, 255, 255, 0.3),
    0 8px 32px var(--glass-shadow),
    inset 0 1px 0 var(--glass-highlight),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
}