/* ============================================================
   ANIMATIONS — keyframes + scroll-reveal classes
   ============================================================ */

/* ── Keyframes ──────────────────────────────────────────────── */

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

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-36px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(36px); }
  to   { opacity: 1; transform: translateX(0); }
}

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

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

@keyframes scrollIndicator {
  0%   { transform: translateY(0); opacity: 1; }
  80%  { transform: translateY(12px); opacity: 0; }
  81%  { transform: translateY(0); opacity: 0; }
  100% { opacity: 1; }
}

@keyframes pulse-ring {
  0%   { transform: scale(0.92); opacity: 0.6; }
  100% { transform: scale(1.4);  opacity: 0; }
}

@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position:  400px 0; }
}

@keyframes progressBar {
  from { width: 0; }
  to   { width: var(--pct); }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-8px); }
}

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

/* ── Scroll-reveal base state ────────────────────────────────── */
/* Elements start hidden; JS adds .is-visible when in viewport */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--ease-slow), transform var(--ease-slow);
}

.reveal.from-left {
  transform: translateX(-36px);
}

.reveal.from-right {
  transform: translateX(36px);
}

.reveal.scale {
  transform: scale(0.94);
}

.reveal.is-visible {
  opacity: 1;
  transform: translate(0) scale(1);
}

/* Stagger delays for grid children */
.reveal-group > *:nth-child(1) { transition-delay: 0ms;  }
.reveal-group > *:nth-child(2) { transition-delay: 80ms; }
.reveal-group > *:nth-child(3) { transition-delay: 160ms;}
.reveal-group > *:nth-child(4) { transition-delay: 240ms;}
.reveal-group > *:nth-child(5) { transition-delay: 320ms;}
.reveal-group > *:nth-child(6) { transition-delay: 400ms;}
.reveal-group > *:nth-child(7) { transition-delay: 480ms;}
.reveal-group > *:nth-child(8) { transition-delay: 560ms;}

/* ── Preloader animation ─────────────────────────────────────── */
@keyframes preloaderLine {
  0%   { width: 0%;   opacity: 1; }
  70%  { width: 100%; opacity: 1; }
  100% { width: 100%; opacity: 0; }
}

@keyframes preloaderFade {
  0%   { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}

/* ── Lightbox ────────────────────────────────────────────────── */
@keyframes lightboxIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

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