/* ============================================================
   ANIMATIONS.CSS — Keyframes, Glow Effects, Transitions
   ============================================================ */

/* ---------- Glow Pulse ---------- */
@keyframes glowPulseCyan {
  0%, 100% { box-shadow: 0 0 10px rgba(0,245,255,0.2), 0 0 20px rgba(0,245,255,0.1); }
  50%       { box-shadow: 0 0 20px rgba(0,245,255,0.4), 0 0 40px rgba(0,245,255,0.2); }
}

@keyframes glowPulseGreen {
  0%, 100% { box-shadow: 0 0 10px rgba(0,255,136,0.2), 0 0 20px rgba(0,255,136,0.1); }
  50%       { box-shadow: 0 0 20px rgba(0,255,136,0.4), 0 0 40px rgba(0,255,136,0.2); }
}

@keyframes glowTextCyan {
  0%, 100% { text-shadow: 0 0 10px rgba(0,245,255,0.5); }
  50%       { text-shadow: 0 0 20px rgba(0,245,255,0.9), 0 0 40px rgba(0,245,255,0.4); }
}

/* ---------- Typing Cursor ---------- */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.typing-cursor::after {
  content: '|';
  color: var(--color-cyan);
  animation: blink 1s step-end infinite;
  margin-left: 2px;
}

/* ---------- Fade In ---------- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95) translateY(12px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

/* Triggered by IntersectionObserver */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.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; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ---------- Scan Line ---------- */
@keyframes scanLine {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(0,245,255,0.3), transparent);
  animation: scanLine 8s linear infinite;
  pointer-events: none;
}

/* ---------- Grid Lines Background ---------- */
.bg-grid {
  position: relative;
}

.bg-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
  z-index: 0;
}

/* ---------- Gradient Overlays ---------- */
.gradient-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(180deg, var(--color-bg) 0%, transparent 100%);
  pointer-events: none;
  z-index: 1;
}

.gradient-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(0deg, var(--color-bg) 0%, transparent 100%);
  pointer-events: none;
  z-index: 1;
}

/* ---------- Floating glow orbs ---------- */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  opacity: 0.12;
}

.glow-orb-cyan {
  background: var(--color-cyan);
  width: 400px;
  height: 400px;
}

.glow-orb-green {
  background: var(--color-green);
  width: 300px;
  height: 300px;
}

.glow-orb-purple {
  background: var(--color-purple);
  width: 350px;
  height: 350px;
}

/* ---------- Hero-specific ---------- */
@keyframes heroGlow {
  0%, 100% { opacity: 0.08; transform: scale(1); }
  50%       { opacity: 0.14; transform: scale(1.05); }
}

.hero-glow-orb {
  animation: heroGlow 6s ease-in-out infinite;
}

/* ---------- Number counter ---------- */
@keyframes countUp {
  from { transform: translateY(8px); opacity: 0; }
  to   { transform: translateY(0);   opacity: 1; }
}

/* ---------- Pulsing dot indicator ---------- */
.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 8px var(--color-green);
  animation: glowPulseGreen 2s ease-in-out infinite;
}

/* ---------- Loading bar ---------- */
@keyframes loadBar {
  0%   { width: 0%; }
  100% { width: 100%; }
}

/* ---------- Shimmer for skeleton loading ---------- */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--color-bg-card) 25%, var(--color-bg-card-hover) 50%, var(--color-bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}