/* ===== KEYFRAMES ===== */
@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); }
}

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

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}

@keyframes float-delayed {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(5deg); }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

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

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(37, 99, 235, 0.3); }
  50% { box-shadow: 0 0 40px rgba(37, 99, 235, 0.6); }
}

@keyframes border-rotate {
  0% { --border-angle: 0deg; }
  100% { --border-angle: 360deg; }
}

@keyframes morph {
  0%, 100% { border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; }
  25% { border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%; }
  50% { border-radius: 50% 60% 30% 60% / 30% 60% 70% 40%; }
  75% { border-radius: 60% 40% 60% 30% / 60% 40% 30% 60%; }
}

/* ===== REVEAL CLASSES ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.stagger > * {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.stagger.revealed > *:nth-child(1) { transition-delay: 0.05s; }
.stagger.revealed > *:nth-child(2) { transition-delay: 0.1s; }
.stagger.revealed > *:nth-child(3) { transition-delay: 0.15s; }
.stagger.revealed > *:nth-child(4) { transition-delay: 0.2s; }
.stagger.revealed > *:nth-child(5) { transition-delay: 0.25s; }
.stagger.revealed > *:nth-child(6) { transition-delay: 0.3s; }
.stagger.revealed > *:nth-child(7) { transition-delay: 0.35s; }
.stagger.revealed > *:nth-child(8) { transition-delay: 0.4s; }

.stagger.revealed > * {
  opacity: 1;
  transform: translateY(0);
}

/* ===== HOVER EFFECTS ===== */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-6px);
}

.hover-glow {
  transition: box-shadow var(--duration-normal) var(--ease-out);
}

.hover-glow:hover {
  box-shadow: var(--shadow-glow);
}

/* ===== LOADING SKELETON ===== */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--card) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

/* ===== 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,
  .stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}