/* =========================================================
   animations.css — Keyframes and scroll-reveal system
   ========================================================= */

/* ── Keyframes ── */

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeSlideUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeSlideLeft {
  from {
    opacity: 0;
    transform: translateX(24px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes navbarDrop {
  from {
    opacity: 0;
    transform: translateY(-100%);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gradientShift {
  0%   { background-position: 0%   50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0%   50%; }
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.55; }
  50%       { opacity: 1.00; }
}

@keyframes chevronBounce {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(5px); }
}

@keyframes gradientBorderSpin {
  to { --angle: 360deg; }
}

/* ── Scroll Reveal System ── */
/*
   JS adds .reveal--visible to .reveal elements when they enter the viewport.
   Stagger: .reveal-stagger children get --stagger-idx set by JS.
*/

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity  700ms var(--ease-out),
    transform 700ms var(--ease-out);
}

.reveal--visible {
  opacity: 1;
  transform: none;
}

/* Stagger delays for direct children of .reveal-stagger */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity  650ms var(--ease-out),
    transform 650ms var(--ease-out);
  transition-delay: calc(var(--stagger-idx, 0) * 90ms);
}

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

/* ── Hero entry animations ── */
/*
   Triggered by JS adding .hero--loaded to .section-hero
*/

.hero__eyebrow,
.hero__title,
.hero__tagline,
.hero__ctas,
.hero__scroll-hint {
  opacity: 0;
}

.section-hero.hero--loaded .hero__eyebrow {
  animation: fadeSlideUp 700ms var(--ease-out) 100ms forwards;
}
.section-hero.hero--loaded .hero__title {
  animation: fadeSlideUp 800ms var(--ease-out) 250ms forwards;
}
.section-hero.hero--loaded .hero__tagline {
  animation: fadeSlideUp 700ms var(--ease-out) 450ms forwards;
}
.section-hero.hero--loaded .hero__ctas {
  animation: fadeSlideUp 650ms var(--ease-out) 620ms forwards;
}
.section-hero.hero--loaded .hero__scroll-hint {
  animation: fadeSlideUp 600ms var(--ease-out) 850ms forwards;
}

/* ── Navbar ── */
.navbar {
  animation: navbarDrop 600ms var(--ease-out) forwards;
}

/* ── Scroll hint chevron bounce ── */
.section-hero.hero--loaded .hero__scroll-hint svg {
  animation: chevronBounce 1.6s ease-in-out 1500ms infinite;
}

/* ── Hero title gradient animation ── */
.hero__title-accent {
  background: linear-gradient(90deg, #DE4926, #E8832A, #F3C748, #E8832A, #DE4926);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientShift 5s ease-in-out infinite;
}

/* ── Card glow breath (applied on hover via CSS) ── */
@keyframes cardGlow {
  0%, 100% { box-shadow: 0 0 0 rgba(222, 73, 38, 0); }
  50%       { box-shadow: var(--glow-fire-sm); }
}

/* ── Reduced motion overrides ── */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .reveal-stagger > * {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .hero__eyebrow,
  .hero__title,
  .hero__tagline,
  .hero__ctas,
  .hero__scroll-hint {
    opacity: 1;
    animation: none;
  }

  .hero__title-accent {
    animation: none;
    background-size: 100%;
  }

  .section-hero.hero--loaded .hero__scroll-hint svg {
    animation: none;
  }
}