/* ==========================================================================
   meOpera.com Animations
   Keyframes and scroll-triggered animation classes
   ========================================================================== */

/* --------------------------------------------------------------------------
   Keyframes
   -------------------------------------------------------------------------- */

/* Fade in upward */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in downward */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in from left */
@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Fade in from right */
@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Simple fade */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Elite title reveal — wide letter-spacing contracts in */
@keyframes eliteReveal {
  0% {
    opacity: 0;
    letter-spacing: 0.8em;
  }
  100% {
    opacity: 1;
    letter-spacing: 0.3em;
  }
}

/* Subtle scale reveal */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.94);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Pulse — used for CTA attention */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(204, 19, 0, 0.4);
  }
  50% {
    transform: scale(1.02);
    box-shadow: 0 0 0 8px rgba(204, 19, 0, 0);
  }
}

/* Subtle float — hero image or decorative element */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Shimmer — used on skeleton loaders */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* Spin — loading indicator */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Count-up container fade — actual counting handled by JS */
@keyframes countUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Stagger child animation */
@keyframes staggerIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Red underline expand */
@keyframes underlineExpand {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* --------------------------------------------------------------------------
   Scroll-triggered Animations (JS adds .visible class)
   -------------------------------------------------------------------------- */

/* Content is visible by DEFAULT (good for SEO/AEO and no-JS): no reveal-on-
   scroll that would hide text until JavaScript runs. The .visible class is
   kept as a harmless no-op for the existing JS. */
.animate-on-scroll,
.animate-on-scroll.visible,
.animate-on-scroll.from-left,
.animate-on-scroll.from-left.visible,
.animate-on-scroll.from-right,
.animate-on-scroll.from-right.visible,
.animate-on-scroll.scale-in,
.animate-on-scroll.scale-in.visible,
.animate-on-scroll.fade-only {
  opacity: 1;
  transform: none;
}

/* Stagger children also visible by default (SEO/AEO, no-JS). */
.stagger-children > *,
.stagger-children.visible > * {
  opacity: 1;
  transform: none;
}

.stagger-children.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-children.visible > *:nth-child(2) { transition-delay: 80ms; }
.stagger-children.visible > *:nth-child(3) { transition-delay: 160ms; }
.stagger-children.visible > *:nth-child(4) { transition-delay: 240ms; }
.stagger-children.visible > *:nth-child(5) { transition-delay: 320ms; }
.stagger-children.visible > *:nth-child(6) { transition-delay: 400ms; }
.stagger-children.visible > *:nth-child(7) { transition-delay: 480ms; }
.stagger-children.visible > *:nth-child(8) { transition-delay: 560ms; }

.stagger-children.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Direct Animation Classes (no scroll trigger, plays on render)
   -------------------------------------------------------------------------- */

.anim-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.anim-fade-in-down {
  animation: fadeInDown 0.6s ease forwards;
}

.anim-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.anim-scale-in {
  animation: scaleIn 0.5s ease forwards;
}

.anim-float {
  animation: float 4s ease-in-out infinite;
}

.anim-pulse {
  animation: pulse 2.5s ease-in-out infinite;
}

.anim-spin {
  animation: spin 1s linear infinite;
}

/* Delay modifiers */
.anim-delay-100 { animation-delay: 100ms; }
.anim-delay-200 { animation-delay: 200ms; }
.anim-delay-300 { animation-delay: 300ms; }
.anim-delay-400 { animation-delay: 400ms; }
.anim-delay-500 { animation-delay: 500ms; }
.anim-delay-600 { animation-delay: 600ms; }
.anim-delay-800 { animation-delay: 800ms; }
.anim-delay-1000 { animation-delay: 1000ms; }

/* Fill-mode: prevent flash on delay */
.anim-fill-both { animation-fill-mode: both; }

/* --------------------------------------------------------------------------
   Transition Utilities
   -------------------------------------------------------------------------- */

.transition-all {
  transition: all var(--transition-base);
}

.transition-colors {
  transition: color var(--transition-base),
              background-color var(--transition-base),
              border-color var(--transition-base);
}

.transition-transform {
  transition: transform var(--transition-base);
}

.transition-opacity {
  transition: opacity var(--transition-base);
}

.transition-fast {
  transition-duration: 0.15s;
}

.transition-slow {
  transition-duration: 0.4s;
}

/* --------------------------------------------------------------------------
   Hover Effects
   -------------------------------------------------------------------------- */

/* Lift on hover */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

/* Scale on hover */
.hover-scale {
  transition: transform var(--transition-base);
}

.hover-scale:hover {
  transform: scale(1.03);
}

/* Image zoom on hover — apply to wrapper */
.hover-zoom-img {
  overflow: hidden;
}

.hover-zoom-img img {
  transition: transform 0.5s ease;
}

.hover-zoom-img:hover img {
  transform: scale(1.06);
}

/* Underline expand on hover */
.hover-underline {
  position: relative;
  display: inline-block;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-red);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-base);
}

.hover-underline:hover::after {
  transform: scaleX(1);
}

/* --------------------------------------------------------------------------
   Page Transition Utilities
   -------------------------------------------------------------------------- */

.page-enter {
  animation: fadeInUp 0.5s ease forwards;
}

.page-exit {
  animation: fadeIn 0.3s ease reverse forwards;
}

/* --------------------------------------------------------------------------
   Loading Spinner
   -------------------------------------------------------------------------- */

.spinner {
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2.5px solid var(--color-light-grey);
  border-top-color: var(--color-blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 3px;
}

.spinner-red {
  border-top-color: var(--color-red);
}

.spinner-white {
  border-color: rgba(255, 255, 255, 0.25);
  border-top-color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Reduced Motion Overrides
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll,
  .stagger-children > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  .anim-fade-in-up,
  .anim-fade-in-down,
  .anim-fade-in,
  .anim-scale-in,
  .anim-float,
  .anim-pulse,
  .anim-spin {
    animation: none !important;
  }

  .spinner {
    animation: none !important;
    border-color: var(--color-blue) !important;
  }

  .hover-zoom-img img {
    transition: none !important;
  }
}