.services-hero {
  padding: calc(180px * var(--space-scale)) var(--container-pad)
    calc(100px * var(--space-scale));
  position: relative;
  overflow: hidden;
}
.services-hero-bg {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black, transparent);
}
.services-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(44px, 6.2vw, 78px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  position: relative;
  z-index: 2;
}
.services-hero h1 em {
  color: var(--accent);
  font-style: italic;
}
.services-hero p {
  color: var(--muted-light);
  font-size: 15px;
  font-weight: 300;
  max-width: 500px;
  line-height: 1.7;
  margin-top: 24px;
  position: relative;
  z-index: 2;
}

/* Service category sections */
.service-category {
  /* TUNE: Reduce vertical section size to keep each animation cycle tighter. */
  padding: calc(84px * var(--space-scale)) var(--container-pad);
  border-top: 1px solid var(--border);
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 72px;
}
.service-category-sticky {
  position: sticky;
  top: 120px;
  height: fit-content;
}
.service-category-num {
  font-family: var(--font-display);
  font-size: 64px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
}
.service-category-title {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.service-category-desc {
  color: var(--muted-light);
  font-size: 15px;
  line-height: 1.8;
  font-weight: 300;
  margin-bottom: 32px;
}
.service-detail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--void);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 10px 20px;
  transition:
    background 0.2s,
    color 0.2s,
    transform 0.2s;
}
.service-detail-link:hover {
  background: transparent;
  color: var(--accent);
  transform: translateY(-1px);
}
.service-accent-bar {
  width: 48px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 24px;
}
.service-sublist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 24px;
  position: relative;
  z-index: 3;
  padding: 0px 10px 10px;
  border-radius: 14px;
  background: var(--void);
  opacity: 1;
  will-change: transform;
}
.service-right-col {
  position: relative;
}

.service-subitem {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--void);
  color: var(--muted-light);
  font-size: 15px;
  font-weight: 300;
  transition:
    color 0.2s,
    padding-left 0.3s,
    border-color 0.25s,
    transform 0.25s;
  cursor: default;
}
.service-subitem:hover {
  color: var(--white);
  padding-left: 24px;
  border-color: rgba(184, 255, 0, 0.35);
  background: var(--surface);
  transform: translateY(-1px);
}
.service-subitem::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
  flex-shrink: 0;
  transition: opacity 0.2s;
}
.service-subitem:hover::before {
  opacity: 1;
}

/* Desktop overlap layer for GSAP pinned reveal.
       Keep HTML unchanged; list floats over the visual and is animated via yPercent. */
@media (min-width: 1025px) {
  .service-right-col {
    position: relative;
    min-height: max(480px, 56vh);
  }
  .service-sublist {
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 10px;
    margin-top: 0;
    z-index: 2;
    background: var(--void);
  }
  .service-visual {
    z-index: 1;
  }
  .service-visual-inner,
  .service-visual-img,
  .service-visual-grid,
  .service-visual-glow {
    opacity: 1;
  }
}

/* Tech stack pills */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 32px;
}
.tech-pill {
  background: var(--elevated);
  border: 1px solid var(--border-light);
  color: var(--muted-light);
  padding: 8px 16px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 400;
  transition:
    border-color 0.2s,
    color 0.2s;
}
.tech-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* Right side visual */
.service-visual {
  align-self: flex-start;
  position: sticky;
  top: 120px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  overflow: hidden;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}
.service-visual-inner {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.service-visual-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.72;
  filter: saturate(0.85) contrast(1.05);
}
.service-visual-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.5;
}
.service-visual-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at center,
    var(--accent-mid) 0%,
    transparent 60%
  );
}
.service-visual-icon {
  font-family: var(--font-display);
  font-size: 100px;
  font-weight: 800;
  color: rgba(240, 238, 234, 0.04);
  position: relative;
  z-index: 2;
  letter-spacing: -0.04em;
}

@media (max-width: 1024px) {
  .services-hero {
    padding-bottom: 72px;
  }
  .services-hero h1 {
    font-size: clamp(40px, 7vw, 66px);
  }
  .services-hero p {
    max-width: 560px;
  }
  .service-category {
    grid-template-columns: 1fr;
  }
  .service-category-sticky {
    position: static;
  }
  .service-visual {
    position: static;
  }
  .service-sublist {
    margin-top: 20px;
  }
  .service-item {
    grid-template-columns: 60px 1fr;
    gap: 20px;
    align-items: start;
  }
  .service-tags {
    grid-column: 2 / -1;
  }
}
@media (max-width: 768px) {
  .services-hero,
  .service-category {
    padding-left: var(--layout-gutter);
    padding-right: var(--layout-gutter);
  }
  .services-hero {
    padding-top: 120px;
  }
  .services-hero h1 {
    font-size: clamp(34px, 10vw, 54px);
  }
  .services-hero p {
    font-size: 14px;
    margin-top: 18px;
  }
  .service-category {
    gap: 40px;
    padding-top: 72px;
    padding-bottom: 72px;
  }
  .service-category-num {
    font-size: 52px;
  }
  .service-category-title {
    font-size: 24px;
  }
  .service-category-desc {
    font-size: 14px;
    margin-bottom: 24px;
  }
  .service-visual {
    aspect-ratio: 16/11;
  }
  .service-sublist {
    padding: 0 8px 8px;
  }
  .service-subitem {
    font-size: 14px;
    padding: 14px 16px;
  }
  .tech-stack {
    margin-top: 24px;
  }
  .tech-pill {
    font-size: 12px;
    padding: 7px 14px;
  }
  .cta-section .section-title {
    font-size: clamp(38px, 10vw, 62px);
  }
  .cta-section .section-sub {
    font-size: 15px;
  }
}
@media (max-width: 480px) {
  .services-hero {
    padding-top: 102px;
    padding-bottom: 56px;
  }
  .services-hero h1 {
    font-size: clamp(30px, 12vw, 44px);
    line-height: 1.02;
  }
  .services-hero p {
    font-size: 13px;
  }
  .service-category {
    padding-top: 60px;
    padding-bottom: 60px;
    gap: 28px;
  }
  .service-item {
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 28px 0;
  }
  .service-name {
    font-size: 22px;
  }
  .service-tags {
    grid-column: auto;
  }
  .service-tag {
    font-size: 11px;
    padding: 5px 10px;
  }
  .service-sublist {
    margin-top: 16px;
  }
  .service-subitem {
    font-size: 13px;
    padding: 12px 14px;
  }
  .tech-stack {
    gap: 6px;
  }
  .tech-pill {
    font-size: 11px;
  }
  .cta-section {
    padding-top: 72px;
    padding-bottom: 72px;
  }
  .cta-section .section-title {
    font-size: clamp(34px, 11vw, 48px);
  }
  .cta-section .section-sub {
    font-size: 14px;
    margin-bottom: 32px;
  }
}