/* ============================================
   Animations & Transitions
   ============================================ */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes nfcPulse {
  0% { transform: scale(0.8); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 0.3; }
  100% { transform: scale(0.8); opacity: 0.8; }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes countUp {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

/* Animation utility classes */
[data-animate] {
  opacity: 0;
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"] { transform: translateY(30px); }
[data-animate="fade-down"] { transform: translateY(-30px); }
[data-animate="fade-left"] { transform: translateX(-30px); }
[data-animate="fade-right"] { transform: translateX(30px); }
[data-animate="zoom-in"] { transform: scale(0.9); }

[data-animate].is-visible {
  opacity: 1;
  transform: none;
}

/* ============================================
   Page transitions (MPA)
   ============================================ */

@view-transition {
  navigation: auto;
}

.navbar {
  view-transition-name: site-navbar;
}

#main-content {
  view-transition-name: page-content;
}

@keyframes page-fade-out {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-10px); }
}

@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

::view-transition-old(page-content) {
  animation: 0.22s ease both page-fade-out;
}

::view-transition-new(page-content) {
  animation: 0.32s ease both page-fade-in;
}

::view-transition-old(site-navbar),
::view-transition-new(site-navbar) {
  animation: none;
}

/* JS fallback when navigation transitions are unsupported */
html.page-transition-enter #main-content {
  opacity: 0;
  transform: translateY(14px);
}

html.page-transition-enter-active #main-content {
  opacity: 1;
  transform: none;
  transition: opacity 0.32s ease, transform 0.32s ease;
}

html.page-transition-leave #main-content {
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity 0.22s ease, transform 0.22s ease;
}

@media (prefers-reduced-motion: reduce) {
  @view-transition {
    navigation: none;
  }

  ::view-transition-old(page-content),
  ::view-transition-new(page-content) {
    animation: none;
  }

  html.page-transition-enter #main-content,
  html.page-transition-enter-active #main-content,
  html.page-transition-leave #main-content {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Phone mockup floating */
.phone-mockup {
  animation: float 4s ease-in-out infinite;
}

.floating-card {
  animation: float 3s ease-in-out infinite;
}

.floating-card.card-1 { animation-delay: 0s; }
.floating-card.card-2 { animation-delay: 1s; }
.floating-card.card-3 { animation-delay: 2s; }

.nfc-ring {
  animation: nfcPulse 2s ease-in-out infinite;
}

/* Badge dot */
.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  display: inline-block;
  animation: pulse 2s ease infinite;
}