/* ============================================================
   CATALYST — Keyframes & Animation Utilities
   ============================================================ */

/* ── CORE KEYFRAMES ──────────────────────────────────────────── */

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.45; transform: scale(0.65); }
}

@keyframes shine-sweep {
  0%   { left: -100%; }
  100% { left: 150%; }
}

@keyframes float-y {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33%       { transform: translateY(-8px) rotate(1deg); }
  66%       { transform: translateY(5px) rotate(-1deg); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.2), 0 0 40px rgba(59, 130, 246, 0.08); }
  50%       { box-shadow: 0 0 30px rgba(59, 130, 246, 0.35), 0 0 60px rgba(59, 130, 246, 0.15); }
}

@keyframes glow-text {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.3)); }
  50%       { filter: drop-shadow(0 0 18px rgba(59, 130, 246, 0.6)); }
}

@keyframes ripple {
  0%   { transform: scale(0); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

@keyframes gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

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

@keyframes progress-fill {
  from { width: 0%; }
  to   { width: var(--target-width, 80%); }
}

@keyframes dash-bar {
  0%   { transform: scaleX(0); transform-origin: left; }
  100% { transform: scaleX(1); transform-origin: left; }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes fade-left {
  from { opacity: 0; transform: translateX(24px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes fade-right {
  from { opacity: 0; transform: translateX(-24px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes scale-in {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes slide-in-top {
  from { opacity: 0; transform: translateY(-100%); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

@keyframes border-flow {
  0%   { background-position: 0% 0%; }
  50%  { background-position: 100% 100%; }
  100% { background-position: 0% 0%; }
}

@keyframes timeline-line {
  from { width: 0; }
  to   { width: 100%; }
}

/* ── SCROLL-REVEAL CLASSES ───────────────────────────────────── */
/* Elements start hidden; JS adds .revealed when in viewport    */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity var(--t-slow), transform var(--t-slow);
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays for grid children */
.stagger-1  { transition-delay: 50ms !important; }
.stagger-2  { transition-delay: 120ms !important; }
.stagger-3  { transition-delay: 190ms !important; }
.stagger-4  { transition-delay: 260ms !important; }
.stagger-5  { transition-delay: 330ms !important; }
.stagger-6  { transition-delay: 400ms !important; }

/* ── HERO TYPING CURSOR ──────────────────────────────────────── */
.typing-cursor::after {
  content: '|';
  animation: blink 1s step-end infinite;
  color: var(--blue-bright);
  font-weight: 300;
}

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

/* ── LOADING SPINNER ─────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.15);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin-slow 0.7s linear infinite;
  display: inline-block;
}

/* ── SHIMMER SKELETON ────────────────────────────────────────── */
@keyframes shimmer {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-elevated) 50%, var(--bg-surface) 75%);
  background-size: 400px 100%;
  animation: shimmer 1.6s infinite;
  border-radius: var(--r-md);
}

/* ── METALLIC SHIMMER ON CARDS ───────────────────────────────── */
.metallic-shimmer::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: var(--metallic-shine);
  transition: left 0.7s ease;
  pointer-events: none;
}

.metallic-shimmer:hover::after {
  left: 150%;
}

/* ── PARTICLE CANVAS ─────────────────────────────────────────── */
#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* ── 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, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1;
    transform: none;
  }
}