/* ==========================================================================
   Mobile-First Reset & Interaction Properties
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  height: 100%;
  height: -webkit-fill-available;
  overflow: hidden;
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  user-select: none;
  -webkit-user-select: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  outline: none;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

/* Touch feedback utility */
.touchable {
  transition: transform var(--anim-fast), opacity var(--anim-fast);
  will-change: transform;
}

.touchable:active {
  transform: scale(0.96);
  opacity: 0.85;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 0px;
  background: transparent;
}