/* ============================================================
   ANIMATIONS & SCROLL REVEAL
   ============================================================ */

/* ===== KEYFRAMES ===== */
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-20px) rotate(3deg); }
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5; transform: scale(1.3); }
}

@keyframes spin {
  0%   { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

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

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays */
.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; }
.reveal-delay-6 { transition-delay: 0.6s; }
.reveal-delay-7 { transition-delay: 0.7s; }
.reveal-delay-8 { transition-delay: 0.8s; }

/* ===== HOVER MICRO-INTERACTIONS ===== */
.hover-lift {
  transition: transform var(--transition), box-shadow var(--transition);
}
.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.hover-glow {
  transition: box-shadow var(--transition), border-color var(--transition);
}
.hover-glow:hover {
  box-shadow: var(--shadow-glow);
  border-color: var(--green-light);
}

/* ===== BUTTON SHIMMER ===== */
.btn-primary::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255,255,255,.2) 45%,
    rgba(255,255,255,.2) 55%,
    transparent 60%
  );
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity var(--transition);
}
.btn-primary:hover::after {
  opacity: 1;
  animation: shimmer 1.2s ease-in-out;
}

/* ===== NAVBAR TRANSITION ===== */
.header {
  transition: height var(--transition), background var(--transition),
              box-shadow var(--transition), border-color var(--transition);
}

/* ===== PREFERS 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;
  }
}