/* ===========================================
   ZeroPDF – Enhanced Animation System
   Smoother, modern, and more expressive
   =========================================== */

/* ---------- Base Keyframes (improved) ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideLeft {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideRight {
  from {
    opacity: 0;
    transform: translateX(-24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes popIn {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  70% {
    opacity: 1;
    transform: scale(1.05);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.05); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-4px); }
  20%, 40%, 60%, 80% { transform: translateX(4px); }
}

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

/* ---------- Loading dots ---------- */
@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40%           { transform: scale(1); }
}

/* ---------- Utility animation classes ---------- */
.animate-fade        { animation: fadeIn 0.5s cubic-bezier(0.23, 1, 0.32, 1) both; }
.animate-fade-out    { animation: fadeOut 0.3s ease-in both; }
.animate-slide-up    { animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both; }
.animate-slide-down  { animation: slideDown 0.6s cubic-bezier(0.16, 1, 0.3, 1) both; }
.animate-slide-left  { animation: slideLeft 0.6s cubic-bezier(0.16, 1, 0.3, 1) both; }
.animate-slide-right { animation: slideRight 0.6s cubic-bezier(0.16, 1, 0.3, 1) both; }
.animate-scale       { animation: scaleIn 0.5s cubic-bezier(0.23, 1, 0.32, 1) both; }
.animate-pop         { animation: popIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) both; }
.animate-pulse       { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-shake       { animation: shake 0.5s ease-in-out both; }
.animate-spin        { animation: spin 0.8s linear infinite; }

/* Animation delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-500 { animation-delay: 0.5s; }
.delay-700 { animation-delay: 0.7s; }

/* Animation durations */
.duration-fast   { animation-duration: 0.3s; }
.duration-normal { animation-duration: 0.5s; }
.duration-slow   { animation-duration: 0.8s; }

/* ---------- Hover Effects (improved) ---------- */
.hover-lift {
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              box-shadow 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.08);
}

.hover-scale {
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.hover-scale:hover {
  transform: scale(1.03);
}

.hover-glow {
  transition: box-shadow 0.4s ease;
}
.hover-glow:hover {
  box-shadow: 0 0 20px rgba(var(--color-primary-rgb, 37, 99, 235), 0.3);
}

/* ---------- Reveal on scroll (JS adds .active) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* Left / Right variants */
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

/* ---------- Loading dots component ---------- */
.loading-dots {
  display: inline-flex;
  gap: 5px;
}
.loading-dots span {
  width: 7px;
  height: 7px;
  background: currentColor;
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}
.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

/* ---------- Page transitions (optional) ---------- */
.page-enter {
  animation: fadeIn 0.4s ease-out, slideUp 0.5s ease-out;
}

/* ---------- Reduced motion (accessibility) ---------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}