/* =============================================================================
   animations.css — keyframes, hover effects, scroll-driven visuals
   ============================================================================= */

/* Keyframes */
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

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

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

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 24px rgba(201, 167, 84, 0.2); }
  50% { box-shadow: 0 0 48px rgba(201, 167, 84, 0.5); }
}

@keyframes typewriter {
  from { width: 0; }
  to { width: 100%; }
}

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

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

@keyframes scan {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Hover effects */
.glow-hover {
  position: relative;
  overflow: hidden;
}
.glow-hover::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(120deg, transparent, var(--gold-glow), transparent);
  background-size: 200% 100%;
  opacity: 0;
  transition: opacity var(--d-base) var(--ease-out-quart);
  z-index: -1;
  animation: shimmer 3s linear infinite;
}
.glow-hover:hover::before { opacity: 1; }

/* Animated underline (premium link affordance) */
.link-anim {
  position: relative;
  display: inline-block;
}
.link-anim::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--d-base) var(--ease-out-expo);
}
.link-anim:hover::after { transform: scaleX(1); transform-origin: left; }

/* Floating element (social proof, badges) */
.float-y { animation: float-y 3.6s var(--ease-in-out-circ) infinite; }

/* Spinning glyph (loading, decoration) */
.spin-slow { animation: spin-slow 20s linear infinite; }

/* Glow pulse for live indicators */
.glow-pulse { animation: glow-pulse 2.4s var(--ease-in-out-circ) infinite; }

/* Typewriter effect — used on hero secondary text */
.typewriter {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  border-right: 2px solid var(--gold);
  animation: typewriter 2.4s steps(40) 0.3s both, blink 0.8s step-end infinite;
}

/* Scan line — premium tech aesthetic for hero */
.scan-line {
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.4;
  animation: scan 4s var(--ease-in-out-circ) infinite;
  pointer-events: none;
  filter: blur(1px);
}

/* Grain overlay — adds analog tactile feel (premium aesthetic) */
.grain {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Vignette — focuses attention on center */
.vignette {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0,0,0,0.4) 100%);
}

/* Scroll progress bar at top */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), var(--gold-bright));
  z-index: 200;
  transform-origin: left;
  transform: scaleX(var(--scroll-progress, 0));
  transition: transform 50ms linear;
  box-shadow: 0 0 12px var(--gold);
}

/* Animated counter — used on hero stats */
.counter {
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum';
}

/* Tilt effect — JS controlled, base styles here */
.tilt {
  transform-style: preserve-3d;
  perspective: 1000px;
  transition: transform var(--d-base) var(--ease-out-quart);
  will-change: transform;
}
.tilt-inner {
  transform-style: preserve-3d;
}
.tilt-layer {
  transform: translateZ(20px);
}

/* Magnetic CTA — JS-driven, base setup */
[data-magnetic] {
  transition: transform 200ms var(--ease-out-quart);
  will-change: transform;
}

/* Live activity indicator */
.live-tick {
  position: relative;
  padding-left: 20px;
}
.live-tick::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 12px var(--emerald);
  animation: pulse 1.8s var(--ease-in-out-circ) infinite;
}

/* Reveal letter-by-letter — used on H1. Letters stay visible; we just lift them in. */
html.js .reveal-letters span {
  display: inline-block;
  transform: translateY(20px);
  transition: transform 600ms var(--ease-out-expo);
}
html.js .reveal-letters.in span { transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html.js .reveal-letters span { transform: none !important; }
}

/* Section divider — animated SVG */
.section-divider {
  position: relative;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-bright), transparent);
  margin: var(--s-8) auto;
  max-width: 600px;
}
.section-divider::before {
  content: '◆';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: var(--bg-deep);
  padding: 0 var(--s-3);
  color: var(--gold);
  font-size: 10px;
}