/* ══════════════════════════════════════════════════════════════
   AFFLATUS — MOTION SYSTEM (scroll reveal, hero, CTA, FAQ, tokens)
   Loaded after global.css
   ══════════════════════════════════════════════════════════════ */

:root {
  --anim-fast: 0.15s;
  --anim-normal: 0.3s;
  --anim-slow: 0.6s;
  --anim-slower: 0.9s;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-linear: linear;
  --slide-sm: 16px;
  --slide-md: 30px;
  --slide-lg: 50px;
  --stagger-sm: 60ms;
  --stagger-md: 100ms;
  --stagger-lg: 150ms;
}

/* ── Scroll progress ── */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--color-brand-purple);
  z-index: 10000;
  transition: width 0.1s var(--ease-linear);
  pointer-events: none;
}

/* ── Scroll reveal (data API + legacy .reveal*) ── */
[data-reveal] {
  opacity: 0;
  will-change: opacity, transform;
  transition:
    opacity var(--anim-slow) var(--ease-out),
    transform var(--anim-slow) var(--ease-out);
}

[data-reveal="up"] { transform: translateY(var(--slide-md)); }
[data-reveal="left"] { transform: translateX(calc(-1 * var(--slide-md))); }
[data-reveal="right"] { transform: translateX(var(--slide-md)); }
[data-reveal="fade"] { transform: none; }
[data-reveal="scale"] { transform: scale(0.88); }

[data-reveal].is-visible {
  opacity: 1;
  transform: translate(0) scale(1);
}

[data-reveal="scale"].is-visible { transform: scale(1); }

[data-delay="1"] { transition-delay: calc(var(--stagger-md) * 1); }
[data-delay="2"] { transition-delay: calc(var(--stagger-md) * 2); }
[data-delay="3"] { transition-delay: calc(var(--stagger-md) * 3); }
[data-delay="4"] { transition-delay: calc(var(--stagger-md) * 4); }
[data-delay="5"] { transition-delay: calc(var(--stagger-md) * 5); }

.reveal,
.reveal-l,
.reveal-r {
  opacity: 0;
  will-change: opacity, transform;
  transition:
    opacity var(--anim-slow) var(--ease-out),
    transform var(--anim-slow) var(--ease-out);
}
.reveal { transform: translateY(var(--slide-md)); }
.reveal-l { transform: translateX(calc(-1 * var(--slide-md))); }
.reveal-r { transform: translateX(var(--slide-md)); }

.reveal.is-visible,
.reveal-l.is-visible,
.reveal-r.is-visible {
  opacity: 1;
  transform: translate(0);
}

.stagger > * {
  transition-delay: calc(var(--i, 0) * var(--stagger-md));
}

/* ── Hero load sequences ── */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(var(--slide-lg));
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

.hero .hero-tag {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.1s both;
}
.hero .hero-inner > .hero-content > h1 {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.25s both;
}
.hero .hero-inner > .hero-content > .hero-big-number {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.32s both;
}
.hero .hero-mechanism {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.4s both;
}
.hero .hero-usps {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.5s both;
}
.hero .hero-stats {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.7s both;
}
.hero .hero-ctas {
  animation: heroFadeUp var(--anim-slower) var(--ease-spring) 0.55s both;
}
.hero .hero-trust-signals {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.62s both;
}
.hero .hero-visual {
  animation: heroFadeIn var(--anim-slower) var(--ease-out) 0.5s both;
}
.hero .btn-submit {
  animation: heroFadeUp var(--anim-slower) var(--ease-spring) 0.55s both;
}

/* Hub hero */
.services-hero .section-tag {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.1s both;
}
.services-hero .container > h1 {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.25s both;
}
.services-hero .services-hero-lead {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.4s both;
}
.services-hero .services-hero-ctas {
  animation: heroFadeUp var(--anim-slower) var(--ease-spring) 0.55s both;
}
.services-hero .services-hero-trust {
  animation: heroFadeUp var(--anim-slower) var(--ease-out) 0.7s both;
}

@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(123, 45, 139, 0.5); }
  50% { box-shadow: 0 0 0 10px rgba(123, 45, 139, 0); }
}

@keyframes pulse-shadow {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(123, 45, 139, 0.45), 0 4px 14px rgba(123, 45, 139, 0.25);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(123, 45, 139, 0), 0 8px 28px rgba(123, 45, 139, 0.35);
  }
}

.btn-primary.pulse,
.hero .btn-submit.pulse,
.hero .hero-ctas .btn-primary.pulse {
  animation: pulse-shadow 2s ease-in-out 3;
}

.anatomy-bottom-cta .final-cta-buttons.is-visible .btn-cta-primary {
  animation: pulse-shadow 2.5s ease-in-out infinite;
  animation-delay: 0.8s;
}

/* ── Nav scrolled (extends global) ── */
.main-nav {
  transition:
    background var(--anim-normal) var(--ease-out),
    box-shadow var(--anim-normal) var(--ease-out),
    border-color var(--anim-normal) var(--ease-out);
}
.main-nav.scrolled {
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 20px rgba(123, 45, 139, 0.1);
}

/* ── Buttons / cards — complement global (avoid duplicate transforms where possible) ── */
.btn-primary,
.btn-secondary {
  transition:
    background var(--anim-fast) var(--ease-out),
    transform var(--anim-fast) var(--ease-out),
    box-shadow var(--anim-fast) var(--ease-out),
    color var(--anim-fast) var(--ease-out),
    border-color var(--anim-fast) var(--ease-out);
}
.btn-primary:hover {
  box-shadow: 0 6px 20px var(--color-shadow);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.problem-card,
.anatomy-t-card,
.anatomy-team-card,
.timeline-step {
  transition:
    transform var(--anim-normal) var(--ease-out),
    box-shadow var(--anim-normal) var(--ease-out);
}
.problem-card:hover,
.anatomy-t-card:hover,
.anatomy-team-card:hover,
.timeline-step:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px var(--color-shadow);
}

.service-card {
  transition:
    transform var(--anim-normal) var(--ease-out),
    box-shadow var(--anim-normal) var(--ease-out);
}
.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px var(--color-shadow);
}

.nav-link {
  position: relative;
  transition: color var(--anim-fast) var(--ease-out), border-color var(--anim-fast) var(--ease-out);
}
.main-nav:not(.scrolled) .nav-links .nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-brand-purple-light);
  transition: width var(--anim-normal) var(--ease-out);
}
.main-nav:not(.scrolled) .nav-links .nav-link:hover::after,
.main-nav:not(.scrolled) .nav-links .nav-link.is-active::after {
  width: 100%;
}

.btn-cta-primary {
  transition:
    background var(--anim-fast) var(--ease-out),
    transform var(--anim-fast) var(--ease-out),
    box-shadow var(--anim-fast) var(--ease-out);
}
.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--color-shadow);
}

.btn-submit {
  transition:
    background var(--anim-fast) var(--ease-out),
    transform var(--anim-fast) var(--ease-out),
    box-shadow var(--anim-fast) var(--ease-out);
}
.btn-submit:hover {
  box-shadow: 0 6px 20px var(--color-shadow);
}
.btn-submit:active {
  transform: translateY(0);
}

/* ── FAQ accordion motion (works with main.js max-height) ── */
.faq-question {
  transition: color var(--anim-fast) var(--ease-out);
}
.faq-item.is-open .faq-question {
  color: var(--color-brand-purple);
}
.faq-icon {
  display: inline-block;
  transition: transform var(--anim-normal) var(--ease-spring);
}
.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--anim-slow) var(--ease-in-out);
}

/* ── Mobile ── */
@media (max-width: 768px) {
  :root {
    --slide-md: 18px;
    --slide-lg: 28px;
    --anim-slow: 0.45s;
  }
  [data-delay="1"],
  [data-delay="2"],
  [data-delay="3"],
  [data-delay="4"],
  [data-delay="5"] {
    transition-delay: 0ms !important;
  }
  [data-reveal="left"],
  [data-reveal="right"] {
    transform: translateY(var(--slide-sm));
  }
  [data-reveal="left"].is-visible,
  [data-reveal="right"].is-visible {
    transform: translateY(0);
  }
  .reveal-l,
  .reveal-r {
    transform: translateY(var(--slide-sm));
  }
  .reveal-l.is-visible,
  .reveal-r.is-visible {
    transform: translateY(0);
  }
}

@media (max-width: 768px) {
  [data-reveal] {
    transition-duration: 0.35s;
  }
  .hero .hero-tag,
  .hero .hero-inner > .hero-content > h1,
  .hero .hero-inner > .hero-content > .hero-big-number,
  .hero .hero-mechanism,
  .hero .hero-usps,
  .hero .hero-stats,
  .hero .hero-visual,
  .hero .hero-ctas,
  .hero .hero-trust-signals,
  .hero .btn-submit {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  [data-reveal],
  .reveal,
  .reveal-l,
  .reveal-r {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .hero .hero-tag,
  .hero .hero-inner > .hero-content > h1,
  .hero .hero-inner > .hero-content > .hero-big-number,
  .hero .hero-mechanism,
  .hero .hero-usps,
  .hero .hero-stats,
  .hero .hero-visual,
  .hero .hero-ctas,
  .hero .hero-trust-signals,
  .hero .btn-submit,
  .services-hero .section-tag,
  .services-hero .container > h1,
  .services-hero .services-hero-lead,
  .services-hero .services-hero-ctas,
  .services-hero .services-hero-trust {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .btn-primary.pulse,
  .hero .hero-ctas .btn-primary.pulse,
  .hero .btn-submit.pulse {
    animation: none !important;
  }
  .anatomy-bottom-cta .final-cta-buttons.is-visible .btn-cta-primary {
    animation: none !important;
  }
  .scroll-progress {
    display: none !important;
  }
  .faq-answer {
    transition: none !important;
  }
  .faq-icon {
    transition: none !important;
  }
}