/* ==========================================================================
   Veltrix SMP Bulletin — Animation Library
   Reusable, GPU-accelerated keyframes + Intersection Observer reveal classes.
   ========================================================================== */

/* ---------- Reveal-on-scroll primitives ---------- */
[data-reveal] {
  opacity: 0;
  will-change: transform, opacity;
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}

[data-reveal="fade-up"] {
  transform: translate3d(0, 32px, 0);
}

[data-reveal="fade-in"] {
  transform: none;
}

[data-reveal="scale"] {
  transform: scale(0.94);
}

[data-reveal="slide-left"] {
  transform: translate3d(-40px, 0, 0);
}

[data-reveal="slide-right"] {
  transform: translate3d(40px, 0, 0);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

/* Stagger children via inline --delay set by JS, or nth-child fallback */
[data-reveal] {
  transition-delay: var(--reveal-delay, 0s);
}

/* ---------- Floating ---------- */
@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes float-y-sm {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-8px) rotate(3deg); }
}

.float {
  animation: float-y 6s ease-in-out infinite;
}

.float-sm {
  animation: float-y-sm 4.5s ease-in-out infinite;
}

.float-delay-1 { animation-delay: 0.6s; }
.float-delay-2 { animation-delay: 1.2s; }
.float-delay-3 { animation-delay: 1.8s; }

/* ---------- Particles (hero) ---------- */
@keyframes particle-drift {
  0% { transform: translate3d(0, 0, 0); opacity: 0; }
  10% { opacity: var(--p-op, 0.6); }
  90% { opacity: var(--p-op, 0.6); }
  100% { transform: translate3d(var(--p-x, 20px), var(--p-y, -220px), 0); opacity: 0; }
}

.particle {
  position: absolute;
  border-radius: 50%;
  background: #fff;
  filter: blur(0.5px);
  animation: particle-drift var(--p-dur, 10s) linear infinite;
  animation-delay: var(--p-delay, 0s);
  pointer-events: none;
}

/* ---------- Clouds ---------- */
@keyframes cloud-drift {
  from { transform: translate3d(-10%, 0, 0); }
  to { transform: translate3d(10%, 0, 0); }
}

.cloud {
  position: absolute;
  pointer-events: none;
  opacity: 0.8;
  animation: cloud-drift 40s ease-in-out infinite alternate;
}

/* ---------- Card hover / lift ---------- */
.hover-lift {
  transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
  will-change: transform;
}

.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lift);
}

/* ---------- Image zoom on hover ---------- */
.media-zoom {
  overflow: hidden;
  position: relative;
}

.media-zoom img {
  transition: transform 0.8s var(--ease-out);
  will-change: transform;
}

.media-zoom:hover img {
  transform: scale(1.08);
}

/* ---------- Glow ---------- */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(107, 165, 57, 0.35); }
  50% { box-shadow: 0 0 0 12px rgba(107, 165, 57, 0); }
}

.glow-pulse {
  animation: glow-pulse 2.4s ease-out infinite;
}

/* ---------- Fade in page transition ---------- */
.page-fade {
  animation: page-fade-in 0.6s var(--ease-out) both;
}

@keyframes page-fade-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-exit {
  animation: page-fade-out 0.32s var(--ease-out) forwards;
}

@keyframes page-fade-out {
  to { opacity: 0; transform: translateY(-10px); }
}

/* ---------- Bee flight (Discord CTA) ---------- */
@keyframes bee-fly {
  0% { transform: translate3d(0, 0, 0) rotate(0deg); }
  25% { transform: translate3d(18px, -22px, 0) rotate(6deg); }
  50% { transform: translate3d(4px, -6px, 0) rotate(-4deg); }
  75% { transform: translate3d(-14px, -26px, 0) rotate(4deg); }
  100% { transform: translate3d(0, 0, 0) rotate(0deg); }
}

.bee-float {
  animation: bee-fly 7s ease-in-out infinite;
}

/* ---------- Marquee / underline draw ---------- */
@keyframes draw-underline {
  from { background-size: 0% 2px; }
  to { background-size: 100% 2px; }
}

/* ---------- Spin ---------- */
@keyframes spin-slow {
  to { transform: rotate(360deg); }
}

.spin-slow {
  animation: spin-slow 14s linear infinite;
}

/* ---------- Ken Burns (hero background) ---------- */
@keyframes ken-burns {
  0% { transform: scale(1.06) translate3d(0, 0, 0); }
  100% { transform: scale(1.14) translate3d(-1%, -1%, 0); }
}

.ken-burns {
  animation: ken-burns 18s ease-in-out infinite alternate;
}