/* ==========================================================================
   animations.css — Penumbra Rental
   Keyframes · Scroll reveal · Hover transitions · Stagger delays
   ========================================================================== */

/* --------------------------------------------------------------------------
   Keyframes
   -------------------------------------------------------------------------- */

/* Hero background ken-burns zoom */
@keyframes kenBurns {
  from { transform: scale(1.0); }
  to   { transform: scale(1.06); }
}

/* Hero text entrance */
@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll indicator line */
@keyframes scrollLine {
  0%   { top: -100%; }
  50%  { top: 0%; }
  100% { top: 100%; }
}

/* Fade up for scroll reveals */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Pulse for gold dot */
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(0.8); }
}

/* --------------------------------------------------------------------------
   Scroll reveal base state
   Elements start invisible and reveal when .is-visible is added by JS
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--transition-xslow) ease-out,
    transform var(--transition-xslow) ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal from left */
.reveal-left {
  opacity: 0;
  transform: translateX(-24px);
  transition:
    opacity var(--transition-xslow) ease-out,
    transform var(--transition-xslow) ease-out;
}

.reveal-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Reveal from right */
.reveal-right {
  opacity: 0;
  transform: translateX(24px);
  transition:
    opacity var(--transition-xslow) ease-out,
    transform var(--transition-xslow) ease-out;
}

.reveal-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Reveal scale */
.reveal-scale {
  opacity: 0;
  transform: scale(0.96);
  transition:
    opacity var(--transition-xslow) ease-out,
    transform var(--transition-xslow) ease-out;
}

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

/* --------------------------------------------------------------------------
   Stagger delays — apply to children via parent
   -------------------------------------------------------------------------- */
.stagger > *:nth-child(1) { transition-delay: 0ms; }
.stagger > *:nth-child(2) { transition-delay: 80ms; }
.stagger > *:nth-child(3) { transition-delay: 160ms; }
.stagger > *:nth-child(4) { transition-delay: 240ms; }
.stagger > *:nth-child(5) { transition-delay: 320ms; }
.stagger > *:nth-child(6) { transition-delay: 400ms; }
.stagger > *:nth-child(7) { transition-delay: 480ms; }
.stagger > *:nth-child(8) { transition-delay: 560ms; }

/* Also apply to .reveal children when parent is .stagger */
.stagger .reveal:nth-child(1)  { transition-delay: 0ms; }
.stagger .reveal:nth-child(2)  { transition-delay: 80ms; }
.stagger .reveal:nth-child(3)  { transition-delay: 160ms; }
.stagger .reveal:nth-child(4)  { transition-delay: 240ms; }
.stagger .reveal:nth-child(5)  { transition-delay: 320ms; }
.stagger .reveal:nth-child(6)  { transition-delay: 400ms; }
.stagger .reveal:nth-child(7)  { transition-delay: 480ms; }
.stagger .reveal:nth-child(8)  { transition-delay: 560ms; }
.stagger .reveal:nth-child(9)  { transition-delay: 640ms; }
.stagger .reveal:nth-child(10) { transition-delay: 720ms; }
.stagger .reveal:nth-child(11) { transition-delay: 800ms; }
.stagger .reveal:nth-child(12) { transition-delay: 880ms; }

/* --------------------------------------------------------------------------
   Global hover micro-interactions
   -------------------------------------------------------------------------- */

/* Gold underline link (grows left-to-right) */
.hover-underline {
  position: relative;
  display: inline-block;
}

.hover-underline::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--transition);
}

.hover-underline:hover::after {
  width: 100%;
}

/* Arrow nudge on hover */
.hover-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: gap var(--transition);
}

.hover-arrow:hover {
  gap: var(--space-3);
}

/* Card border glow */
.hover-border {
  border: var(--border);
  transition: border-color var(--transition);
}

.hover-border:hover {
  border-color: var(--color-gold);
}

/* Image zoom on hover (apply to wrapper, img inside) */
.hover-zoom {
  overflow: hidden;
}

.hover-zoom img {
  transition: transform 600ms ease-out;
}

.hover-zoom:hover img {
  transform: scale(1.05);
}

/* --------------------------------------------------------------------------
   Reduced motion accessibility
   -------------------------------------------------------------------------- */
@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 {
    opacity: 1;
    transform: none;
  }

  .hero__eyebrow,
  .hero__title,
  .hero__subtitle,
  .hero__ctas,
  .hero__scroll {
    opacity: 1;
    transform: none;
  }

  .hero__img {
    animation: none;
  }
}