/* ============================================================
   MS STUDIO — ANIMATIONS
   Keyframes, micro-interactions, entrance effects
   ============================================================ */

/* --- KEYFRAMES --- */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(32px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 12px rgba(84, 195, 234, 0.3);
  }
  50% {
    box-shadow: 0 0 28px rgba(84, 195, 234, 0.6), 0 0 60px rgba(84, 195, 234, 0.2);
  }
}

@keyframes pulseGlowText {
  0%, 100% {
    text-shadow: 0 0 10px rgba(84, 195, 234, 0.4);
  }
  50% {
    text-shadow: 0 0 24px rgba(84, 195, 234, 0.8), 0 0 48px rgba(84, 195, 234, 0.4);
  }
}

@keyframes scanline {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

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

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

@keyframes borderPulse {
  0%, 100% { border-color: rgba(84, 195, 234, 0.2); }
  50%       { border-color: rgba(84, 195, 234, 0.6); }
}

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

@keyframes drawLine {
  from { width: 0; }
  to   { width: 100%; }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes progressBar {
  from { width: 0%; }
  to   { width: var(--target-width, 100%); }
}

/* --- ENTRANCE ANIMATION CLASSES --- */
/* Applied via JS IntersectionObserver */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  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);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll.delay-1 { transition-delay: 0.1s; }
.animate-on-scroll.delay-2 { transition-delay: 0.2s; }
.animate-on-scroll.delay-3 { transition-delay: 0.3s; }
.animate-on-scroll.delay-4 { transition-delay: 0.4s; }
.animate-on-scroll.delay-5 { transition-delay: 0.5s; }

/* --- LOADING SPINNER --- */
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(84, 195, 234, 0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* --- SHIMMER LOADER (for placeholders) --- */
.shimmer {
  background: linear-gradient(
    90deg,
    var(--bg-surface) 0%,
    rgba(84, 195, 234, 0.06) 50%,
    var(--bg-surface) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.8s infinite;
}

/* --- NEON TEXT --- */
.neon-text {
  color: var(--accent);
  animation: pulseGlowText 3s ease-in-out infinite;
}

/* --- HOVER LIFT --- */
.hover-lift {
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
}

/* --- CARD SELECTED STATE --- */
.card-selectable {
  cursor: pointer;
  transition: all 0.25s ease;
}

.card-selectable.selected {
  border-color: var(--accent) !important;
  box-shadow: var(--glow-md), inset 0 0 40px rgba(84,195,234,0.05);
  animation: borderPulse 2.5s ease-in-out infinite;
}

/* --- PAGE TRANSITION --- */
.page-transition {
  animation: fadeIn 0.4s ease forwards;
}

/* --- PROGRESS BAR (loading) --- */
#load-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  box-shadow: var(--glow-sm);
  z-index: 9999;
  transition: width 0.2s ease, opacity 0.5s ease;
}