/* ============================================================
   NETAUDIENCE — ANIMATIONS.CSS
   Scroll animations, transitions, micro-interactions
   ============================================================ */

/* ---- Scroll Reveal Base ---- */
.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.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.55s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-stagger.visible > *:nth-child(1) { transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2) { transition-delay: 0.13s; }
.reveal-stagger.visible > *:nth-child(3) { transition-delay: 0.21s; }
.reveal-stagger.visible > *:nth-child(4) { transition-delay: 0.29s; }
.reveal-stagger.visible > *:nth-child(5) { transition-delay: 0.37s; }
.reveal-stagger.visible > *:nth-child(6) { transition-delay: 0.45s; }

.reveal-stagger.visible > * {
  opacity: 1;
  transform: translateY(0);
}

/* Left slide */
.reveal-left {
  opacity: 0;
  transform: translateX(-32px);
  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.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Right slide */
.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  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.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Scale in */
.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ---- Hero SVG Background Animation ---- */
@keyframes svgFloat {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  33% { transform: translateY(-12px) rotate(0.5deg); }
  66% { transform: translateY(-6px) rotate(-0.5deg); }
}

@keyframes svgFloatAlt {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  50% { transform: translateY(-18px) rotate(1deg); }
}

.hero-svg-float { animation: svgFloat 8s ease-in-out infinite; }
.hero-svg-float-alt { animation: svgFloatAlt 10s ease-in-out infinite; }

/* ---- Gradient Animation for Hero ---- */
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.animated-gradient {
  background-size: 200% 200%;
  animation: gradientShift 6s ease infinite;
}

/* ---- Counter Animation ---- */
.kpi-number {
  display: block;
  transition: all 0.1s;
}

/* ---- Card hover shimmer ---- */
.card-shimmer {
  position: relative;
  overflow: hidden;
}

.card-shimmer::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255,255,255,.08),
    transparent
  );
  transition: left 0.6s ease;
}

.card-shimmer:hover::after { left: 150%; }

/* ---- Button ripple ---- */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 50%;
  background: rgba(255,255,255,.2);
  border-radius: 50%;
  transform: scale(0);
  transition: all 0.5s ease;
}

.btn:active::after {
  inset: -50%;
  opacity: 0;
  transform: scale(1);
  transition: 0s;
}

/* ---- Gold line decoration animation ---- */
@keyframes lineGrow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.gold-line {
  height: 2px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
  transform-origin: left;
  animation: lineGrow 1s ease forwards;
}

/* ---- Floating dots background ---- */
@keyframes dotFloat {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(-20px); opacity: 0.8; }
}

.dot-float {
  animation: dotFloat var(--duration, 4s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}

/* ---- Page transition ---- */
.page-enter {
  animation: pageIn 0.4s ease forwards;
}

@keyframes pageIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- Scroll indicator ---- */
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

.scroll-indicator span {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
}

.scroll-indicator-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, rgba(255,255,255,.4), transparent);
}

/* ---- Loading shimmer for images ---- */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.img-placeholder {
  background: linear-gradient(90deg,
    var(--color-blue-light) 25%,
    rgba(232,241,250,.8) 50%,
    var(--color-blue-light) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

/* ---- Blog image gradients ---- */
.blog-img-1 { background: linear-gradient(135deg, #1B3A5C 0%, #2E86DE 100%); }
.blog-img-2 { background: linear-gradient(135deg, #0F2137 0%, #1B3A5C 100%); }
.blog-img-3 { background: linear-gradient(135deg, #2E86DE 0%, #1B3A5C 100%); }
.blog-img-4 { background: linear-gradient(135deg, #1B3A5C 0%, #0F2137 50%, #C9A96E 100%); }
.blog-img-5 { background: linear-gradient(135deg, #0a1a2d 0%, #2E86DE 100%); }
.blog-img-6 { background: linear-gradient(135deg, #1B3A5C 30%, #C9A96E 100%); }

/* ---- Glow effects ---- */
.glow-blue {
  box-shadow: 0 0 40px rgba(46,134,222,.25);
}

.glow-gold {
  box-shadow: 0 0 40px rgba(201,169,110,.25);
}

/* ---- Typing cursor for hero ---- */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor {
  display: inline-block;
  width: 3px;
  background: var(--color-gold);
  height: 1em;
  vertical-align: middle;
  margin-left: 4px;
  animation: blink 1s step-end infinite;
}

/* ---- Chart line animation (decorative) ---- */
@keyframes chartDraw {
  from { stroke-dashoffset: 1000; }
  to { stroke-dashoffset: 0; }
}

.chart-path {
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  animation: chartDraw 2s ease forwards;
  animation-delay: 0.5s;
}

/* ---- Expertise card number animation ---- */
.expertise-card .card-number {
  transition: color var(--transition);
}

.expertise-card:hover .card-number {
  color: var(--color-gold);
}

/* ---- Underline animation for links ---- */
.animated-link {
  position: relative;
}

.animated-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: var(--color-gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s ease;
}

.animated-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* ---- Particle / dot decor ---- */
.hero-dots {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-dot {
  position: absolute;
  border-radius: 50%;
  background: var(--color-gold);
  opacity: 0;
}

/* ---- Nav link underline ---- */
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%; right: 50%;
  height: 2px;
  background: var(--color-gold);
  border-radius: 1px;
  transition: left 0.3s, right 0.3s;
}

/* ---- Background grid lines ---- */
.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* ---- Animated border gradient ---- */
@keyframes borderRotate {
  from { --angle: 0deg; }
  to { --angle: 360deg; }
}

/* ---- Smooth transitions for interactive elements ---- */
a, button, input, select, textarea {
  transition-property: color, background-color, border-color, box-shadow, transform, opacity;
  transition-duration: 0.25s;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Focus visible (accessibility) ---- */
:focus-visible {
  outline: 2px solid var(--color-blue);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- 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,
  .reveal-stagger > * {
    opacity: 1;
    transform: none;
  }
}