/* Motion follows the room: light, composition, then the finished scene. */
:root {
  --motion-out: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-smooth: cubic-bezier(0.22, 0.68, 0, 1);
}

section[id] { scroll-margin-top: 92px; }
.site-header { position: sticky; top: 0; }
.site-header::after {
  background: var(--orange);
  bottom: -1px;
  content: "";
  height: 2px;
  left: 0;
  pointer-events: none;
  position: absolute;
  transform: scaleX(var(--reading-progress, 0));
  transform-origin: left;
  width: 100%;
}

.desktop-nav a,
.site-footer nav a { position: relative; }
.desktop-nav a::after,
.site-footer nav a::after {
  background: currentColor;
  bottom: -6px;
  content: "";
  height: 1px;
  left: 0;
  position: absolute;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 280ms var(--motion-out);
  width: 100%;
}
.desktop-nav a:is(:hover, :focus-visible)::after,
.site-footer nav a:is(:hover, :focus-visible)::after {
  transform: scaleX(1);
  transform-origin: left;
}

.hero-word { display: inline-block; }
.hero-reveal {
  background: var(--ink);
  inset: 0;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  z-index: -1;
}

.button {
  isolation: isolate;
  overflow: hidden;
  position: relative;
  transition: background 200ms ease, border-color 200ms ease, transform 280ms var(--motion-out);
}
.final-button { position: absolute; }
.button-primary::before {
  background: linear-gradient(105deg, transparent 20%, rgb(255 255 255 / 18%) 48%, transparent 76%);
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
  transform: translateX(-115%);
}
.button svg {
  flex-shrink: 0;
  transition: transform 300ms var(--motion-out);
}
.button:is(:hover, :focus-visible) svg { transform: translateX(3px); }
.button:active {
  transform: translateY(0) scale(0.98);
  transition-duration: 100ms;
}

.workflow-steps { position: relative; }
.workflow-steps::after {
  background: var(--cyan);
  bottom: -1px;
  content: "";
  height: 1px;
  left: 0;
  pointer-events: none;
  position: absolute;
  transform: scaleX(var(--workflow-progress, 0));
  transform-origin: left;
  width: 100%;
}
.media-frame img { transition: transform 700ms var(--motion-out); }
.media-frame figcaption { transition: background 200ms ease, transform 400ms var(--motion-out); }

/* Clip the full-size photo without resizing it while the boundary moves. */
.comparison-before-wrap {
  clip-path: inset(0 calc(100% - var(--position)) 0 0);
  width: 100%;
}
.comparison-before { max-width: 100%; width: 100%; }
.comparison-divider {
  background: transparent;
  left: 0;
  transform: translateX(var(--position));
  width: 100%;
}
.comparison-divider::before {
  background: var(--orange);
  content: "";
  height: 100%;
  left: -2px;
  position: absolute;
  top: 0;
  width: 4px;
}
.comparison-handle {
  left: 0;
  transition: background 180ms ease, box-shadow 180ms ease;
}
.comparison-stage:focus-within .comparison-handle {
  box-shadow: 0 0 0 4px var(--ink), 0 0 0 6px var(--white);
}
.comparison-stage.is-interacting .comparison-handle { background: var(--orange-hover); }

.faq-list details { overflow: hidden; }
.faq-list summary { gap: 20px; transition: color 180ms ease; }
.faq-list summary:hover { color: var(--cyan); }
.faq-list summary svg {
  flex-shrink: 0;
  transition: transform 300ms var(--motion-out), color 180ms ease;
}
.faq-list details.is-closing summary svg { transform: rotate(0); }

@keyframes button-light {
  to { transform: translateX(115%); }
}

@media (max-width: 360px) {
  .manifesto h2 { font-size: 38px; }
}

@media (prefers-reduced-motion: no-preference) and (hover: hover) and (pointer: fine) {
  .hero-media { transform: translate3d(0, var(--scene-y, 0px), 0) scale(1.04); }
  .button-primary:is(:hover, :focus-visible)::before { animation: button-light 650ms var(--motion-smooth); }
  .media-frame:hover img { transform: scale(1.035); }
  .media-frame:hover figcaption { background: var(--ink); transform: translateY(-3px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .hero-media,
  .media-frame:hover img,
  .media-frame:hover figcaption,
  .button:is(:hover, :active),
  .button:is(:hover, :focus-visible) svg { transform: none; }
}