/* ============================================
   JOURNEYOS AI — Animation System
   ============================================ */

/* --- Fade Animations --- */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInLeft { from { opacity: 0; transform: translateX(-30px); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeInRight { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

/* --- Scale Animations --- */
@keyframes scaleIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
@keyframes popIn { 0% { opacity: 0; transform: scale(0.5); } 70% { transform: scale(1.05); } 100% { opacity: 1; transform: scale(1); } }

/* --- Float & Pulse --- */
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes floatSlow { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-20px); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes pulseGlow { 0%, 100% { box-shadow: 0 0 10px var(--accent-cyan-glow); } 50% { box-shadow: 0 0 30px var(--accent-cyan-glow), 0 0 60px rgba(0,212,255,0.1); } }

/* --- Glow --- */
@keyframes glow { 0%, 100% { filter: drop-shadow(0 0 5px var(--accent-cyan-glow)); } 50% { filter: drop-shadow(0 0 20px var(--accent-cyan-glow)); } }
@keyframes borderGlow {
  0%, 100% { border-color: rgba(0, 212, 255, 0.2); }
  50% { border-color: rgba(0, 212, 255, 0.5); }
}

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

/* --- Rotate --- */
@keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes rotateSlow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* --- Particle --- */
@keyframes particleFloat {
  0% { transform: translate(0, 0) scale(1); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translate(var(--tx, 100px), var(--ty, -300px)) scale(0.3); opacity: 0; }
}

/* --- Slide --- */
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }
@keyframes slideOutRight { from { transform: translateX(0); } to { transform: translateX(100%); } }

/* --- Typewriter --- */
@keyframes typing { from { width: 0; } to { width: 100%; } }
@keyframes blinkCaret { 0%, 100% { border-color: transparent; } 50% { border-color: var(--accent-cyan); } }

/* --- Utility Classes --- */
.animate-fade-in { animation: fadeIn 0.6s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.6s ease forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.6s ease forwards; }
.animate-fade-in-right { animation: fadeInRight 0.6s ease forwards; }
.animate-scale-in { animation: scaleIn 0.5s ease forwards; }
.animate-pop-in { animation: popIn 0.5s ease forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-float-slow { animation: floatSlow 6s ease-in-out infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-pulse-glow { animation: pulseGlow 2s ease-in-out infinite; }
.animate-glow { animation: glow 2s ease-in-out infinite; }
.animate-shimmer {
  background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-elevated) 50%, var(--bg-tertiary) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}
.animate-rotate { animation: rotate 10s linear infinite; }
.animate-rotate-slow { animation: rotateSlow 30s linear infinite; }
.animate-border-glow { animation: borderGlow 2s ease-in-out infinite; }

/* Stagger Delays */
.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }
.delay-400 { animation-delay: 0.4s; }
.delay-500 { animation-delay: 0.5s; }
.delay-600 { animation-delay: 0.6s; }
.delay-700 { animation-delay: 0.7s; }
.delay-800 { animation-delay: 0.8s; }

/* Opacity 0 for stagger start */
.stagger-item { opacity: 0; }

/* --- Skeleton Loading --- */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
}
.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, var(--bg-elevated) 50%, transparent 100%);
  animation: shimmer 1.5s ease-in-out infinite;
  background-size: 200% 100%;
}
.skeleton-text { height: 16px; margin-bottom: 8px; border-radius: var(--radius-sm); }
.skeleton-title { height: 24px; width: 60%; margin-bottom: 12px; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: var(--radius-full); }
.skeleton-card { height: 200px; border-radius: var(--radius-xl); }

/* --- Scroll Reveal --- */
.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-left { opacity: 0; transform: translateX(-40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-left.visible { opacity: 1; transform: translateX(0); }
.reveal-right { opacity: 0; transform: translateX(40px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-right.visible { opacity: 1; transform: translateX(0); }
.reveal-scale { opacity: 0; transform: scale(0.9); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-scale.visible { opacity: 1; transform: scale(1); }

/* --- Page Transition --- */
.page-transition { animation: fadeIn 0.4s ease; }

/* --- Hover Effects --- */
.hover-lift { transition: transform var(--transition-base), box-shadow var(--transition-base); }
.hover-lift:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.hover-glow { transition: box-shadow var(--transition-base); }
.hover-glow:hover { box-shadow: var(--shadow-glow-cyan); }
.hover-scale { transition: transform var(--transition-base); }
.hover-scale:hover { transform: scale(1.03); }

/* --- Magnetic Button Effect Base --- */
.magnetic { transition: transform 0.2s ease; }

/* --- Loading Spinner --- */
.spinner {
  width: 40px; height: 40px;
  border: 3px solid var(--bg-elevated);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: rotate 0.8s linear infinite;
}
.spinner-sm { width: 20px; height: 20px; border-width: 2px; }