/* ============================================================
   LexAnalytico — Animations
   animations.css
   ============================================================ */

/* ============================================================
   KEYFRAME DEFINITIONS
   ============================================================ */

/* Hero ken-burns effect */
@keyframes heroKenBurns {
  0%   { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.06) translate(-1%, -1%); }
}

/* Fade in up (used for hero text stagger) */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade in */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Client logos scroll */
@keyframes clientsScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

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

/* Pulse gold glow (for CTA button) */
@keyframes goldPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 204, 0, 0); }
  50%       { box-shadow: 0 0 0 8px rgba(255, 204, 0, 0.15); }
}

/* Counter increment */
@keyframes countUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

/* Gold bar slide (section divider) */
@keyframes barExpand {
  from { width: 0; opacity: 0; }
  to   { width: 56px; opacity: 1; }
}

/* ============================================================
   UTILITY ANIMATION CLASSES
   ============================================================ */

/* Applied by JS IntersectionObserver */
.anim-fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.anim-fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

.anim-fade-left {
  opacity: 0;
  transform: translateX(-32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.anim-fade-left.in-view {
  opacity: 1;
  transform: translateX(0);
}

.anim-fade-right {
  opacity: 0;
  transform: translateX(32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.anim-fade-right.in-view {
  opacity: 1;
  transform: translateX(0);
}

/* Stagger helpers */
.anim-delay-100 { transition-delay: 0.1s !important; }
.anim-delay-200 { transition-delay: 0.2s !important; }
.anim-delay-300 { transition-delay: 0.3s !important; }
.anim-delay-400 { transition-delay: 0.4s !important; }
.anim-delay-500 { transition-delay: 0.5s !important; }
.anim-delay-600 { transition-delay: 0.6s !important; }
.anim-delay-700 { transition-delay: 0.7s !important; }
.anim-delay-800 { transition-delay: 0.8s !important; }

/* Gold divider line animation */
.gold-divider {
  display: block;
  width: 0;
  height: 3px;
  background: linear-gradient(to right, #FFCC00, #CC9E00);
  border-radius: 2px;
  margin: 16px 0;
}

.gold-divider.in-view {
  animation: barExpand 0.6s ease forwards;
}

/* Hover shimmer effect on gold buttons */
.btn--gold {
  background-image: linear-gradient(
    105deg,
    #FFCC00 0%,
    #FFCC00 40%,
    rgba(255,255,255,0.35) 50%,
    #FFCC00 60%,
    #FFCC00 100%
  );
  background-size: 200% auto;
  transition: background-position 0.5s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.btn--gold:hover {
  background-position: right center;
}

/* Pulse on primary CTA */
.btn--pulse {
  animation: goldPulse 2.5s ease infinite;
}

/* Section header gold accent */
.section-header-accent::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin: 16px auto 0;
}

.section-header-accent--left::after {
  margin: 16px 0 0;
}