/* ===== KEYFRAMES ===== */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes itemSlideIn {
  from { opacity: 0; transform: translateX(-16px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes bounceIn {
  0%   { transform: scale(0.8); opacity: 0; }
  60%  { transform: scale(1.08); opacity: 1; }
  80%  { transform: scale(0.97); }
  100% { transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.04); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(76,175,110,0); }
  50%       { box-shadow: 0 0 0 8px rgba(76,175,110,0.2); }
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(20px) scale(0.9); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(-16px) scale(0.9); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  15%       { transform: translateX(-8px); }
  30%       { transform: translateX(8px); }
  45%       { transform: translateX(-6px); }
  60%       { transform: translateX(6px); }
  75%       { transform: translateX(-3px); }
  90%       { transform: translateX(3px); }
}

@keyframes countUp {
  from { transform: translateY(8px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

@keyframes ripple {
  to { transform: scale(4); opacity: 0; }
}

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

@keyframes slideFromRight {
  from { transform: translateX(100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes slideFromLeft {
  from { transform: translateX(-100%); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes flashBalance {
  0%   { transform: scale(1); }
  25%  { transform: scale(1.06); }
  50%  { transform: scale(0.97); }
  75%  { transform: scale(1.03); }
  100% { transform: scale(1); }
}

@keyframes scoreReveal {
  from { stroke-dashoffset: 188.5; }
}

/* ===== UTILITY ANIMATION CLASSES ===== */
.animate-bounce-in { animation: bounceIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both; }
.animate-pulse     { animation: pulse 2s ease-in-out infinite; }
.animate-glow      { animation: glow 2s ease-in-out infinite; }
.animate-shake     { animation: shake 0.5s ease; }
.animate-count-up  { animation: countUp 0.3s ease; }
.animate-spin      { animation: spin 0.6s linear; }

/* Balance card animation on change */
.balance-flash {
  animation: flashBalance 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Ripple effect on buttons */
.btn-ripple {
  position: relative;
  overflow: hidden;
}

.btn-ripple::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 8px;
  background: rgba(255,255,255,0.5);
  border-radius: 50%;
  transform: scale(0);
  pointer-events: none;
}

.btn-ripple:active::after {
  animation: ripple 0.5s ease-out;
}

/* Number count-up animation for amounts */
.num-change {
  display: inline-block;
  animation: countUp 0.25s ease both;
}

/* Card hover lift */
.card-hover {
  transition: transform var(--transition), box-shadow var(--transition);
}
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Staggered list animations */
.stagger-1 { animation-delay: 0.05s; }
.stagger-2 { animation-delay: 0.1s; }
.stagger-3 { animation-delay: 0.15s; }
.stagger-4 { animation-delay: 0.2s; }
.stagger-5 { animation-delay: 0.25s; }

/* Balance color transition */
.balance-amount {
  transition: color 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Tab transition */
.tab-panel {
  animation: fadeSlideIn 0.3s ease both;
}

/* Delete animation */
.budget-item.removing {
  animation: removeItem 0.3s ease forwards;
}

@keyframes removeItem {
  to { opacity: 0; transform: translateX(32px); height: 0; padding: 0; margin: 0; }
}

/* Checklist check animation */
.check-box {
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.checklist-item.completing .check-box {
  animation: bounceIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Chart load animation */
.chart-card {
  animation: fadeSlideIn 0.4s ease both;
}

/* Score ring draw */
.ring-fill {
  animation: scoreReveal 1s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

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