/*! 9ui Animation v1.0 | MIT License | https://9ui.dev */

/* ─── Keyframes ─── */
@keyframes ui-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes ui-fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes ui-fade-in-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes ui-fade-in-down {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes ui-fade-in-left {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes ui-fade-in-right {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes ui-scale-in {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes ui-scale-out {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0; transform: scale(0.92); }
}

@keyframes ui-slide-in-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}

@keyframes ui-slide-in-down {
  from { transform: translateY(-100%); }
  to   { transform: translateY(0); }
}

@keyframes ui-slide-in-left {
  from { transform: translateX(-100%); }
  to   { transform: translateX(0); }
}

@keyframes ui-slide-in-right {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

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

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

@keyframes ui-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

@keyframes ui-bounce {
  0%, 100% { transform: translateY(0); animation-timing-function: cubic-bezier(0.8, 0, 1, 1); }
  50%       { transform: translateY(-25%); animation-timing-function: cubic-bezier(0, 0, 0.2, 1); }
}

@keyframes ui-ping {
  75%, 100% { transform: scale(2); opacity: 0; }
}

@keyframes ui-float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

@keyframes ui-wiggle {
  0%, 100% { transform: rotate(-3deg); }
  50%       { transform: rotate(3deg); }
}

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

/* ─── Utility Classes ─── */
.ui-animate-fade-in       { animation: ui-fade-in       var(--ui-duration-normal) var(--ui-ease-out) both; }
.ui-animate-fade-out      { animation: ui-fade-out      var(--ui-duration-normal) var(--ui-ease-in) both; }
.ui-animate-fade-in-up    { animation: ui-fade-in-up    var(--ui-duration-slow)   var(--ui-ease-out) both; }
.ui-animate-fade-in-down  { animation: ui-fade-in-down  var(--ui-duration-slow)   var(--ui-ease-out) both; }
.ui-animate-fade-in-left  { animation: ui-fade-in-left  var(--ui-duration-slow)   var(--ui-ease-out) both; }
.ui-animate-fade-in-right { animation: ui-fade-in-right var(--ui-duration-slow)   var(--ui-ease-out) both; }
.ui-animate-scale-in      { animation: ui-scale-in      var(--ui-duration-slow)   var(--ui-ease-spring) both; }
.ui-animate-slide-in-up   { animation: ui-slide-in-up   var(--ui-duration-slow)   var(--ui-ease-spring) both; }
.ui-animate-shimmer       { animation: ui-shimmer        1.5s linear infinite; }
.ui-animate-spin          { animation: ui-spin           1s linear infinite; }
.ui-animate-pulse         { animation: ui-pulse          2s cubic-bezier(0.4,0,0.6,1) infinite; }
.ui-animate-bounce        { animation: ui-bounce         1s infinite; }
.ui-animate-ping          { animation: ui-ping           1s cubic-bezier(0,0,0.2,1) infinite; }
.ui-animate-float         { animation: ui-float          3s ease-in-out infinite; }
.ui-animate-wiggle        { animation: ui-wiggle         0.3s ease-in-out; }

/* ─── Delay Utilities ─── */
.ui-delay-75  { animation-delay: 75ms; }
.ui-delay-100 { animation-delay: 100ms; }
.ui-delay-150 { animation-delay: 150ms; }
.ui-delay-200 { animation-delay: 200ms; }
.ui-delay-300 { animation-delay: 300ms; }
.ui-delay-500 { animation-delay: 500ms; }
.ui-delay-700 { animation-delay: 700ms; }
.ui-delay-1000{ animation-delay: 1000ms; }

/* ─── Duration Utilities ─── */
.ui-duration-75   { animation-duration: 75ms; }
.ui-duration-100  { animation-duration: 100ms; }
.ui-duration-150  { animation-duration: 150ms; }
.ui-duration-200  { animation-duration: 200ms; }
.ui-duration-300  { animation-duration: 300ms; }
.ui-duration-500  { animation-duration: 500ms; }
.ui-duration-700  { animation-duration: 700ms; }
.ui-duration-1000 { animation-duration: 1000ms; }

/* ─── Scroll Reveal ─── */
/* Elements with .ui-reveal are hidden until .is-visible is added by JS */
.ui-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity var(--ui-duration-slow) var(--ui-ease-out),
    transform var(--ui-duration-slow) var(--ui-ease-out);
}

.ui-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.ui-reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition:
    opacity var(--ui-duration-slow) var(--ui-ease-out),
    transform var(--ui-duration-slow) var(--ui-ease-out);
}

.ui-reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.ui-reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition:
    opacity var(--ui-duration-slow) var(--ui-ease-out),
    transform var(--ui-duration-slow) var(--ui-ease-out);
}

.ui-reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.ui-reveal-scale {
  opacity: 0;
  transform: scale(0.94);
  transition:
    opacity var(--ui-duration-slow) var(--ui-ease-out),
    transform var(--ui-duration-slow) var(--ui-ease-spring);
}

.ui-reveal-scale.is-visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children */
.ui-stagger > * { --stagger-index: 0; }
.ui-stagger > *:nth-child(1)  { animation-delay: calc(var(--stagger-index, 0) * 50ms + 0ms); }
.ui-stagger > *:nth-child(2)  { animation-delay: calc(var(--stagger-index, 0) * 50ms + 50ms); }
.ui-stagger > *:nth-child(3)  { animation-delay: calc(var(--stagger-index, 0) * 50ms + 100ms); }
.ui-stagger > *:nth-child(4)  { animation-delay: calc(var(--stagger-index, 0) * 50ms + 150ms); }
.ui-stagger > *:nth-child(5)  { animation-delay: calc(var(--stagger-index, 0) * 50ms + 200ms); }
.ui-stagger > *:nth-child(6)  { animation-delay: calc(var(--stagger-index, 0) * 50ms + 250ms); }

/* ─── Reduced Motion ─── */
@media (prefers-reduced-motion: reduce) {
  .ui-reveal, .ui-reveal-left, .ui-reveal-right, .ui-reveal-scale {
    opacity: 1;
    transform: none;
    transition: none;
  }
  [class*="ui-animate-"] {
    animation: none !important;
  }
}