/* ============================================================
   ANIMATIONS — Keyframes, scroll-reveal, transitions
   ============================================================ */

/* ── Keyframes ──────────────────────────────────────────── */
@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

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

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

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

/* ── Scroll Reveal ──────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Stagger delays for child elements */
.reveal-stagger > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger > *:nth-child(2) { transition-delay: 0.15s; }
.reveal-stagger > *:nth-child(3) { transition-delay: 0.25s; }
.reveal-stagger > *:nth-child(4) { transition-delay: 0.35s; }
.reveal-stagger > *:nth-child(5) { transition-delay: 0.45s; }
.reveal-stagger > *:nth-child(6) { transition-delay: 0.55s; }

/* Hero entrance animation */
.hero__left > * {
  animation: fade-in-up 0.7s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.hero__left > *:nth-child(1) { animation-delay: 0.2s; }
.hero__left > *:nth-child(2) { animation-delay: 0.35s; }
.hero__left > *:nth-child(3) { animation-delay: 0.5s; }
.hero__left > *:nth-child(4) { animation-delay: 0.65s; }
.hero__left > *:nth-child(5) { animation-delay: 0.8s; }

.hero__right {
  animation: fade-in 1s ease both;
  animation-delay: 0.4s;
}

/* Diagonal section dividers */
.section-divider-down::after {
  content: '';
  position: absolute;
  bottom: -4vw;
  left: 0;
  right: 0;
  height: 8vw;
  background: var(--bg-base);
  clip-path: polygon(0 0, 100% 100%, 0 100%);
  z-index: 1;
}

.section-divider-up::before {
  content: '';
  position: absolute;
  top: -4vw;
  left: 0;
  right: 0;
  height: 8vw;
  background: var(--bg-surface);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  z-index: 1;
}

/* Pulse glow effect */
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 189, 57, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(255, 189, 57, 0); }
}

.glow-pulse {
  animation: glow-pulse 2.5s ease-in-out infinite;
}

/* Floating animation for decorative elements */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}