/* ============================================================
   VANYA — Animations & Transitions
   ============================================================ */

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.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; }

/* ---------- Pulse dot ---------- */
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

/* ---------- Fade in up (for modals, toasts) ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.anim-fade-in-up {
  animation: fadeInUp 0.4s ease forwards;
}

/* ---------- Fade in ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.anim-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

/* ---------- Scale in ---------- */
@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}
.anim-scale-in {
  animation: scaleIn 0.35s ease forwards;
}

/* ---------- Slide in from right ---------- */
@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
.anim-slide-right {
  animation: slideInRight 0.5s ease forwards;
}

/* ---------- Slide in from left ---------- */
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}
.anim-slide-left {
  animation: slideInLeft 0.5s ease forwards;
}

/* ---------- Bar grow (for chart bars) ---------- */
@keyframes barGrow {
  from { height: 0; }
}
.anim-bar-grow {
  animation: barGrow 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

/* ---------- Gauge fill ---------- */
@keyframes gaugeFill {
  from { stroke-dashoffset: var(--circumference); }
  to { stroke-dashoffset: var(--offset); }
}

/* ---------- Shimmer loading placeholder ---------- */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.anim-shimmer {
  background: linear-gradient(90deg, var(--paper-dim) 25%, var(--paper) 50%, var(--paper-dim) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* ---------- Float (for decorative elements) ---------- */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.anim-float {
  animation: float 3s ease-in-out infinite;
}

/* ---------- Spin ---------- */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.anim-spin {
  animation: spin 1s linear infinite;
}

/* ---------- Ripple (water effect) ---------- */
@keyframes ripple {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(2.5); opacity: 0; }
}

/* ---------- Scan sweep ---------- */
@keyframes scanSweep {
  0% { top: 4%; opacity: 0.9; }
  50% { top: 92%; opacity: 0.5; }
  100% { top: 4%; opacity: 0.9; }
}

/* ---------- Scroll line pulse ---------- */
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

/* ---------- Marquee scroll ---------- */
@keyframes marqueeScroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Badge pop ---------- */
@keyframes badgePop {
  0% { transform: scale(0); }
  70% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

/* ---------- Stagger children (applied via JS) ---------- */
.stagger-children > *:nth-child(1) { transition-delay: 0.05s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(7) { transition-delay: 0.35s; }
.stagger-children > *:nth-child(8) { transition-delay: 0.4s; }
.stagger-children > *:nth-child(9) { transition-delay: 0.45s; }
.stagger-children > *:nth-child(10) { transition-delay: 0.5s; }
.stagger-children > *:nth-child(11) { transition-delay: 0.55s; }
.stagger-children > *:nth-child(12) { transition-delay: 0.6s; }

/* ---------- Prefers reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}