/* Button Micro-Interactions - Haptic Illusion */
.btn,
button:not([disabled]),
input[type="submit"],
input[type="button"],
a.btn {
  position: relative;
  transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center;
}

.btn:active:not(:disabled),
button:active:not([disabled]),
input[type="submit"]:active,
input[type="button"]:active {
  transform: scale(0.96);
}

/* Smooth return animation */
.btn:not(:active):not(:disabled),
button:not(:active):not([disabled]),
input[type="submit"]:not(:active),
input[type="button"]:not(:active) {
  transform: scale(1);
}

/* Prevent text selection during click */
.btn,
button {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

/* Ripple effect (optional enhancement) */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::after {
  width: 300px;
  height: 300px;
}

/* Hover lift effect */
.btn-lift:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-lift:active:not(:disabled) {
  transform: translateY(0) scale(0.96);
}