/* ====================================================
   Scroll Depth FX — adds parallax, tilt, depth shadows
   and a sticky-scroll narrative section.
   Layered on top of existing styles; respects
   prefers-reduced-motion.
   ==================================================== */

/* HERO PARALLAX ----------------------------------------- */
.hero { perspective: 1500px; }
.hero__bg {
  will-change: transform;
  transition: transform 0.1s linear;
}
.hero__content {
  will-change: transform, opacity;
}

/* SERVICE CARD DEPTH + TILT ----------------------------- */
.services-grid { perspective: 1200px; }
.service-card {
  transform-style: preserve-3d;
  transition: transform 0.35s cubic-bezier(.22,.61,.36,1),
              box-shadow 0.35s cubic-bezier(.22,.61,.36,1);
  position: relative;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(232,90,21,0.04) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 0;
}
.service-card:hover {
  transform: translateY(-8px) scale(1.015);
  box-shadow:
    0 4px 12px rgba(61,43,31,0.06),
    0 16px 40px rgba(61,43,31,0.10),
    0 24px 64px rgba(232,90,21,0.08);
}
.service-card:hover::before { opacity: 1; }
.service-card > * { position: relative; z-index: 1; }
.service-card.is-tilted {
  transform: perspective(900px)
             rotateX(var(--tilt-x, 0deg))
             rotateY(var(--tilt-y, 0deg))
             translateY(-6px);
}

/* PROCESS CARDS — same depth treatment */
.process-card {
  transition: transform 0.35s cubic-bezier(.22,.61,.36,1),
              box-shadow 0.35s cubic-bezier(.22,.61,.36,1);
}
.process-card:hover {
  transform: translateY(-6px);
  box-shadow:
    0 12px 32px rgba(61,43,31,0.10),
    0 4px 8px rgba(61,43,31,0.06);
}

/* PROJECT CARDS — depth on scroll-in */
.project-card {
  transition: transform 0.5s cubic-bezier(.22,.61,.36,1),
              box-shadow 0.5s cubic-bezier(.22,.61,.36,1);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}
.project-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 20px 48px rgba(0,0,0,0.18);
}

/* PARALLAX IMAGE BLOCKS --------------------------------- */
.parallax-img {
  overflow: hidden;
  position: relative;
}
.parallax-img img,
.parallax-img > picture > img {
  will-change: transform;
  transition: transform 0.05s linear;
  transform: scale(1.12); /* gives room to translate without showing edges */
}

/* ENHANCED REVEAL — adds stagger + variants ------------- */
.reveal-up    { transform: translateY(40px); }
.reveal-left  { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-zoom  { transform: scale(0.94); }
.reveal-up, .reveal-left, .reveal-right, .reveal-zoom {
  opacity: 0;
  transition: opacity 0.8s cubic-bezier(.22,.61,.36,1),
              transform 0.8s cubic-bezier(.22,.61,.36,1);
}
.reveal-up.is-visible,
.reveal-left.is-visible,
.reveal-right.is-visible,
.reveal-zoom.is-visible {
  opacity: 1;
  transform: translate(0,0) scale(1);
}
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }
.reveal-delay-4 { transition-delay: 0.32s; }

/* STICKY-SCROLL NARRATIVE ------------------------------- */
.sticky-story {
  background: var(--color-cream);
  padding: var(--space-16) 0;
}
.sticky-story__wrap {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-4);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}
@media (min-width: 960px) {
  .sticky-story__wrap {
    grid-template-columns: 1fr 1.1fr;
    gap: var(--space-16);
    padding: 0 var(--space-8);
  }
}
.sticky-story__media {
  position: relative;
}
@media (min-width: 960px) {
  .sticky-story__media {
    position: sticky;
    top: 100px;
    height: calc(100vh - 140px);
    max-height: 640px;
  }
}
.sticky-story__visual {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 320px;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 48px rgba(61,43,31,0.12);
}
.sticky-story__visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 0.6s cubic-bezier(.22,.61,.36,1),
              transform 0.8s cubic-bezier(.22,.61,.36,1);
}
.sticky-story__visual img.is-active {
  opacity: 1;
  transform: scale(1);
}
.sticky-story__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
@media (min-width: 960px) {
  .sticky-story__steps { gap: var(--space-20); padding: var(--space-8) 0; }
}
.sticky-story__step {
  padding: var(--space-6);
  border-left: 3px solid var(--color-border);
  transition: border-color 0.4s ease, transform 0.4s ease, opacity 0.4s ease;
  opacity: 0.5;
}
.sticky-story__step.is-active {
  border-left-color: var(--color-orange);
  opacity: 1;
  transform: translateX(4px);
}
.sticky-story__num {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: var(--space-3);
}
.sticky-story__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-brown);
  margin-bottom: var(--space-3);
  line-height: 1.2;
}
@media (min-width: 768px) {
  .sticky-story__title { font-size: var(--text-3xl); }
}
.sticky-story__text {
  font-size: var(--text-base);
  color: var(--color-text-light);
  line-height: 1.7;
}

/* SECTION HEADER FLOAT --------------------------------- */
.float-on-scroll {
  will-change: transform;
}

/* REDUCED MOTION ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .hero__bg,
  .parallax-img img,
  .service-card,
  .process-card,
  .project-card,
  .reveal, .reveal-up, .reveal-left, .reveal-right, .reveal-zoom,
  .sticky-story__visual img,
  .sticky-story__step,
  .float-on-scroll {
    transition: none !important;
    transform: none !important;
    will-change: auto !important;
    opacity: 1 !important;
  }
  .service-card.is-tilted { transform: none !important; }
}