/* animations.css - ultra-smooth page transitions (mobile-first) */
:root {
  --ui-duration: 360ms;
  --fast-duration: 180ms;
  --ease: cubic-bezier(0.2, 0.9, 0.3, 1);
}

.page {
  transition: opacity var(--ui-duration) var(--ease),
    transform var(--ui-duration) var(--ease);
  will-change: opacity, transform;
}

/* initial hidden style */
.page.page-hidden {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

/* visible state */
.page.page-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.page.pt-anim-out {
  opacity: 0;
  transform: translateY(-8px) scale(0.995);
  pointer-events: none;
}

.page.pt-anim-in {
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}

/* header title animation */
#mobile-header-title {
  display: inline-block;
  transition: opacity var(--fast-duration) var(--ease),
    transform var(--fast-duration) var(--ease);
}
#mobile-header-title.title-fade-out {
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
}
#mobile-header-title.title-fade-in {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.card-touch {
  -webkit-tap-highlight-color: transparent;
  transition: transform var(--fast-duration) var(--ease),
    box-shadow var(--fast-duration) var(--ease);
  will-change: transform, box-shadow;
}
.card-touch:active {
  transform: scale(0.994);
}

/* overlay per mobile menu */
#mobile-overlay {
  transition: opacity var(--ui-duration) var(--ease);
}
#mobile-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

/* Hamburger Menu */
.hamburger-icon {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  cursor: pointer;
}

.hamburger-icon .line {
  width: 100%;
  height: 3px;
  background-color: white;
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center;
}

/* Stato attivo */
#mobile-menu-button.active .line-1 {
  transform: translateY(8.5px) rotate(45deg);
}

#mobile-menu-button.active .line-2 {
  opacity: 0;
  transform: scaleX(0);
}

#mobile-menu-button.active .line-3 {
  transform: translateY(-8.5px) rotate(-45deg);
}

/* Effetto hover */
#mobile-menu-button:hover .line {
  background-color: #60d5fa;
}

/* Animazione pulsante */
#mobile-menu-button {
  transition: transform 0.2s ease;
}

#mobile-menu-button:active {
  transform: scale(0.9);
}