/* ============================================
   ANIMATIONS - Keyframes & Scroll Reveals
   ============================================ */

/* ── Scroll Reveal Base ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

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

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

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

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

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Stagger delays for child elements */
.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.12s; }
.stagger-3 { transition-delay: 0.19s; }
.stagger-4 { transition-delay: 0.26s; }
.stagger-5 { transition-delay: 0.33s; }
.stagger-6 { transition-delay: 0.40s; }
.stagger-7 { transition-delay: 0.47s; }
.stagger-8 { transition-delay: 0.54s; }

/* ── Keyframe Animations ── */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes float-slow {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(3deg); }
}

@keyframes float-delayed {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(-2deg); }
}

@keyframes pulse-ring {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.8); opacity: 0; }
}

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

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

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

@keyframes dash {
  to { stroke-dashoffset: 0; }
}

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

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

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes blob-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% 50% 70% 60%; }
  75% { border-radius: 60% 30% 60% 40% / 70% 50% 40% 60%; }
}

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

/* ── Utility Animation Classes ── */
.anim-float { animation: float 5s ease-in-out infinite; }
.anim-float-slow { animation: float-slow 7s ease-in-out infinite; }
.anim-float-delayed { animation: float-delayed 6s ease-in-out 1s infinite; }
.anim-spin-slow { animation: spin-slow 20s linear infinite; }
.anim-blob { animation: blob-morph 8s ease-in-out infinite; }

/* ── Hero Staggered Entry ── */
.hero-enter > * {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.7s var(--ease-out) forwards;
}

.hero-enter > *:nth-child(1) { animation-delay: 0.1s; }
.hero-enter > *:nth-child(2) { animation-delay: 0.25s; }
.hero-enter > *:nth-child(3) { animation-delay: 0.4s; }
.hero-enter > *:nth-child(4) { animation-delay: 0.55s; }
.hero-enter > *:nth-child(5) { animation-delay: 0.7s; }

/* ── Hover Lift ── */
.hover-lift {
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

/* ── Line draw for timeline ── */
.line-draw {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
}

.line-draw.revealed {
  animation: dash 1.5s var(--ease-out) forwards;
}