/*
 * Motion layer - Dra. Erika Macedo
 * Progressive enhancement: the page remains readable without JavaScript.
 * Optional authoring hooks:
 *   data-motion="fade|left|right|scale|mask"
 *   data-motion-delay="180" (milliseconds, capped by JS)
 *   data-parallax="10" (strength in pixels, desktop only)
 */

:root {
  --motion-duration: 820ms;
  --motion-duration-long: 1200ms;
  --motion-distance: 24px;
  --motion-ease: cubic-bezier(.22, 1, .36, 1);
}

/* Reveal --------------------------------------------------------------- */
.motion-enhanced [data-reveal] {
  opacity: 0;
  transform: translate3d(0, var(--motion-distance), 0);
  transition:
    opacity var(--motion-duration) var(--motion-ease),
    transform var(--motion-duration) var(--motion-ease);
  transition-delay: var(--motion-delay, 0ms);
}

.motion-enhanced [data-reveal][data-motion="fade"] {
  transform: none;
}

.motion-enhanced [data-reveal][data-motion="left"] {
  transform: translate3d(calc(var(--motion-distance) * -1), 0, 0);
}

.motion-enhanced [data-reveal][data-motion="right"] {
  transform: translate3d(var(--motion-distance), 0, 0);
}

.motion-enhanced [data-reveal][data-motion="scale"] {
  transform: scale(.975);
}

.motion-enhanced [data-reveal][data-motion="mask"] {
  clip-path: inset(0 100% 0 0);
  transform: none;
  transition:
    opacity var(--motion-duration) var(--motion-ease),
    transform var(--motion-duration) var(--motion-ease),
    clip-path var(--motion-duration-long) var(--motion-ease);
}

.motion-enhanced [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

.motion-enhanced [data-reveal][data-motion="mask"].is-in {
  clip-path: inset(0 0 0 0);
}

.motion-enhanced [data-reveal]:not(.is-in) {
  will-change: opacity, transform;
}

/* Hero media mask ------------------------------------------------------ */
.hero__media,
.split-bleed__media,
[data-motion-mask] {
  overflow: hidden;
  overflow: clip;
}

.motion-enhanced .motion-mask {
  clip-path: inset(0 100% 0 0);
  transition: clip-path var(--motion-duration-long) var(--motion-ease);
}

.motion-enhanced .motion-mask > img,
.motion-enhanced .motion-mask > picture img {
  transform: scale(1.055);
  transition: transform 1600ms var(--motion-ease);
}

.motion-enhanced .motion-mask.is-in {
  clip-path: inset(0 0 0 0);
}

.motion-enhanced .motion-mask.is-in > img,
.motion-enhanced .motion-mask.is-in > picture img {
  transform: scale(1.015);
}

/* Subtle parallax uses transforms only and never changes document flow. */
@media (min-width: 901px) and (hover: hover) {
  .motion-enhanced [data-motion-parallax] {
    transform: translate3d(0, var(--motion-parallax-y, 0), 0) scale(1.045);
    will-change: transform;
  }

  .motion-enhanced .motion-mask.is-in > [data-motion-parallax],
  .motion-enhanced .motion-mask.is-in > picture [data-motion-parallax] {
    transform: translate3d(0, var(--motion-parallax-y, 0), 0) scale(1.045);
  }

  .motion-enhanced .btn,
  .motion-enhanced .card,
  .motion-enhanced .post-card {
    transition-timing-function: var(--motion-ease);
  }

  .motion-enhanced .btn:hover {
    transform: translate3d(0, -2px, 0);
  }

  .motion-enhanced .post-card:hover .post-card__media img {
    transform: scale(1.035);
  }
}

/* Reading progress ----------------------------------------------------- */
.motion-progress {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--dourado, #A98559);
  pointer-events: none;
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

/* Smaller travel keeps entrance motion calm on compact screens. */
@media (max-width: 900px) {
  :root {
    --motion-distance: 16px;
    --motion-duration: 700ms;
  }

  [data-motion-parallax] {
    transform: none !important;
  }
}

/* Accessibility: no delayed content, masking, parallax or progress. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }

  .motion-enhanced [data-reveal],
  .motion-enhanced .motion-mask,
  .motion-enhanced .motion-mask > img,
  .motion-enhanced .motion-mask > picture img,
  .motion-enhanced [data-motion-parallax] {
    opacity: 1 !important;
    clip-path: none !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
    will-change: auto !important;
  }

  .motion-progress {
    display: none !important;
  }
}

@media print {
  .motion-enhanced [data-reveal],
  .motion-enhanced .motion-mask {
    opacity: 1 !important;
    clip-path: none !important;
    transform: none !important;
  }

  .motion-progress {
    display: none !important;
  }
}