/* ==========================================================================
   GERAL TALU - ANIMATIONS & TRANSITIONS
   Keyframes, Scroll Reveal, Floating Effects, Micro-interactions
   ========================================================================== */

/* --- 1. KEYFRAME DEFINITIONS --- */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideLeft {
  from {
    opacity: 0;
    transform: translateX(28px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideRight {
  from {
    opacity: 0;
    transform: translateX(-28px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-10px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.95);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.6);
    opacity: 0;
  }
  100% {
    transform: scale(0.95);
    opacity: 0;
  }
}

@keyframes wave {
  0% { transform: rotate(0deg); }
  10% { transform: rotate(14deg); }
  20% { transform: rotate(-8deg); }
  30% { transform: rotate(14deg); }
  40% { transform: rotate(-4deg); }
  50% { transform: rotate(10deg); }
  60% { transform: rotate(0deg); }
  100% { transform: rotate(0deg); }
}

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

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

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

/* --- 2. SCROLL REVEAL UTILITIES --- */
/* By default, elements are visible (graceful degradation against blank screens) */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

/* When JavaScript scroll observer is verified active */
.js-scroll-animate .reveal:not(.reveal-visible) {
  opacity: 0;
  transform: translateY(26px);
}

.reveal.reveal-visible {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

.reveal-left {
  opacity: 1;
  transform: none;
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.js-scroll-animate .reveal-left:not(.reveal-visible) {
  opacity: 0;
  transform: translateX(-26px);
}

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

.reveal-right {
  opacity: 1;
  transform: none;
  transition: opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1), transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.js-scroll-animate .reveal-right:not(.reveal-visible) {
  opacity: 0;
  transform: translateX(26px);
}

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

/* Delay modifiers */
.delay-100 { transition-delay: 80ms; }
.delay-200 { transition-delay: 160ms; }
.delay-300 { transition-delay: 240ms; }
.delay-400 { transition-delay: 320ms; }
.delay-500 { transition-delay: 400ms; }

/* --- 3. ANIMATION UTILITIES --- */
.animate-float {
  animation: float 4.5s ease-in-out infinite;
}

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

.skeleton-box {
  display: inline-block;
  height: 1em;
  position: relative;
  overflow: hidden;
  background-color: var(--border-color);
  border-radius: var(--radius-sm);
}

.skeleton-box::after {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  transform: translateX(-100%);
  background-image: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0,
    rgba(255, 255, 255, 0.2) 20%,
    rgba(255, 255, 255, 0.5) 60%,
    rgba(255, 255, 255, 0)
  );
  animation: shimmer 2s infinite;
  content: '';
}