/* ============================================================
   AGENCY OS — Animations & Transitions
   Keyframes, skeletons, micro-interactions
   ============================================================ */

/* ── Keyframes ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

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

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

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

@keyframes slideOutRight {
  from { transform: translateX(0); }
  to { transform: translateX(100%); }
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes progressPulse {
  0% { box-shadow: 0 0 0 0 rgba(31, 182, 166, 0.4); }
  70% { box-shadow: 0 0 0 6px rgba(31, 182, 166, 0); }
  100% { box-shadow: 0 0 0 0 rgba(31, 182, 166, 0); }
}

@keyframes toastEnter {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toastExit {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(100%) scale(0.95);
  }
}

@keyframes modalEnter {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

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

/* ── Animation Classes ── */
.animate-fade-in { animation: fadeIn var(--transition-base) forwards; }
.animate-fade-in-up { animation: fadeInUp var(--transition-base) forwards; }
.animate-fade-in-down { animation: fadeInDown var(--transition-base) forwards; }
.animate-scale-in { animation: scaleIn var(--transition-base) forwards; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-bounce { animation: bounce 1s ease infinite; }

/* Staggered animation for lists/grids */
.stagger-item {
  opacity: 0;
  animation: fadeInUp 400ms ease forwards;
}
.stagger-item:nth-child(1) { animation-delay: 50ms; }
.stagger-item:nth-child(2) { animation-delay: 100ms; }
.stagger-item:nth-child(3) { animation-delay: 150ms; }
.stagger-item:nth-child(4) { animation-delay: 200ms; }
.stagger-item:nth-child(5) { animation-delay: 250ms; }
.stagger-item:nth-child(6) { animation-delay: 300ms; }
.stagger-item:nth-child(7) { animation-delay: 350ms; }
.stagger-item:nth-child(8) { animation-delay: 400ms; }

/* ── Loading Skeleton ── */
.skeleton {
  background: var(--bg-skeleton);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-md);
}

.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
  width: 100%;
}
.skeleton-text:last-child { width: 60%; }

.skeleton-title {
  height: 24px;
  width: 40%;
  margin-bottom: 16px;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

.skeleton-card {
  height: 120px;
  border-radius: var(--radius-lg);
}

.skeleton-chart {
  height: 200px;
  border-radius: var(--radius-lg);
}

/* ── Loading Spinner ── */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-default);
  border-top-color: var(--brand-primary);
  border-radius: var(--radius-full);
  animation: spin 0.7s linear infinite;
}
.spinner--sm { width: 16px; height: 16px; border-width: 2px; }
.spinner--lg { width: 40px; height: 40px; border-width: 4px; }

/* ── Page Loading ── */
.page-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
}

/* ── Hover Lift Effect ── */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

/* ── Count Animation ── */
.count-animate {
  animation: countUp 600ms ease forwards;
}

/* ── Ripple Effect ── */
.ripple {
  position: relative;
  overflow: hidden;
}
.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease, opacity 0.4s ease;
  opacity: 0;
}
.ripple:active::after {
  width: 200px;
  height: 200px;
  opacity: 1;
  transition: 0s;
}

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