/* ==========================================================================
   Services page — hero, service index, hover preview
   (explorer + illustrations: explorer.css, closing CTA: cta.css)
   ========================================================================== */
.s-range { font-size: var(--fs-micro); font-weight: 600; letter-spacing: 0.14em; font-variant-numeric: tabular-nums; }

/* ==========================================================================
   Hero
   ========================================================================== */
.s-hero { position: relative; isolation: isolate; overflow: clip; background: var(--black); }
.s-hero__grid {
  position: absolute; inset: 0; z-index: -1;
  --cell: clamp(3rem, 6vw, 6.5rem);
  background-image:
    linear-gradient(rgb(255 255 255 / 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.055) 1px, transparent 1px);
  background-size: var(--cell) var(--cell);
  -webkit-mask-image: radial-gradient(ellipse 60% 55% at 72% 42%, #000 15%, transparent 72%);
  mask-image: radial-gradient(ellipse 60% 55% at 72% 42%, #000 15%, transparent 72%);
}
.s-hero__inner {
  position: relative;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-block: calc(var(--header-h) + 2rem) clamp(2.5rem, 5vw, 4.5rem);
}
.s-hero__kicker {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; gap: 0.9rem;
  font-size: clamp(1rem, 0.6rem + 1vw, 1.9rem); font-weight: 500; letter-spacing: -0.02em;
}
.s-hero__kicker::before { content: ""; width: 2.5rem; height: 1px; background: currentColor; }
.s-hero__title {
  position: relative; z-index: 1;
  margin-top: clamp(0.5rem, 1.2vw, 1.25rem);
  font-size: clamp(3.2rem, 0.5rem + 8.4vw, 10.75rem);
  font-weight: 700; line-height: 0.9; letter-spacing: -0.055em;
}
.s-hero__title .mask { display: block; width: fit-content; padding-bottom: 0.2em; margin-bottom: -0.2em; }
.s-dot { color: var(--blue); }

.s-hero__foot {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(16rem, 27rem);
  align-items: end; gap: 2rem clamp(2rem, 6vw, 8rem);
  margin-top: clamp(2rem, 4vw, 4.5rem);
}
.s-hero__lead { max-width: 30em; font-size: clamp(1.02rem, 0.7rem + 0.72vw, 1.6rem); line-height: 1.4; letter-spacing: -0.02em; color: rgb(255 255 255 / 0.8); }
.s-hero__disciplines { border-bottom: 1px solid var(--border-dark); }
.s-hero__disciplines a {
  display: grid; grid-template-columns: 4.75rem 1fr auto; align-items: center;
  padding-block: 0.9rem;
  border-top: 1px solid var(--border-dark);
  font-size: clamp(1rem, 0.8rem + 0.4vw, 1.3rem); font-weight: 500; letter-spacing: -0.02em;
  transition: color 0.3s;
}
.s-hero__disciplines a::after { content: "↓"; font-size: 0.9em; opacity: 0.5; transition: transform 0.5s var(--ease-out), opacity 0.3s; }
.s-hero__disciplines .s-range { color: rgb(255 255 255 / 0.45); transition: color 0.3s; }
.s-hero__disciplines a > span:nth-child(2) { transition: transform 0.6s var(--ease-out); }
.s-hero__disciplines a:is(:hover, :focus-visible) { color: var(--white); }
.s-hero__disciplines a:is(:hover, :focus-visible) .s-range { color: var(--blue-bright); }
.s-hero__disciplines a:is(:hover, :focus-visible) > span:nth-child(2) { transform: translateX(0.5rem); }
.s-hero__disciplines a:is(:hover, :focus-visible)::after { opacity: 1; transform: translateY(3px); }

/* network artwork: ring per discipline, node per service */
.s-hero__visual {
  --px: 0; --py: 0;
  position: absolute; z-index: 0;
  right: -7%; top: 46%;
  width: clamp(22rem, 50vw, 62rem); aspect-ratio: 1;
  translate: 0 -50%;
  pointer-events: none;
}
.net { width: 100%; height: 100%; overflow: visible; }
.net__halo { fill: none; stroke: rgb(255 255 255 / 0.07); stroke-dasharray: 2 10; }
.net__orbit { fill: none; stroke: rgb(255 255 255 / 0.16); }
.net__spoke { fill: none; stroke: rgb(255 255 255 / 0.1); }
.net__node--ai { fill: var(--blue); }
.net__node--product { fill: var(--white); }
.net__node--growth { fill: #8d68f2; }
.net__pulse { fill: var(--white); opacity: 0; }
.net__arc circle { fill: #6a5ae6; }
.net__labels text { font: 600 11px/1 var(--font-body); letter-spacing: 0.2em; fill: rgb(255 255 255 / 0.42); }
.net__ring, .net__core { transform-box: view-box; transform-origin: 300px 300px; transition: opacity 0.5s var(--ease-soft); }
.net__ring--ai { --depth: 0.5; }
.net__ring--product { --depth: 1; }
.net__ring--growth { --depth: 1.6; }
.net__ring { translate: calc(var(--px) * var(--depth) * 16px) calc(var(--py) * var(--depth) * 16px); }
/* hovering a discipline link spotlights its ring */
.s-hero:has([data-focus]:is(:hover, :focus-visible)) :is(.net__ring, .net__labels) { opacity: 0.2; }
.s-hero:has([data-focus="ai"]:is(:hover, :focus-visible)) .net__ring--ai,
.s-hero:has([data-focus="product"]:is(:hover, :focus-visible)) .net__ring--product,
.s-hero:has([data-focus="growth"]:is(:hover, :focus-visible)) .net__ring--growth { opacity: 1; }

@media (prefers-reduced-motion: no-preference) {
  .js .s-hero__title .mask > span { transform: translate3d(0, 110%, 0); }
  .is-loaded .s-hero__title .mask > span { transform: none; transition: transform 1.3s var(--ease-out) calc(var(--d) * 110ms + 200ms); }
  .js .s-hero__visual .net { opacity: 0; transform: scale(0.9); }
  .is-loaded .s-hero__visual .net { opacity: 1; transform: none; transition: opacity 1.4s var(--ease-soft) 0.5s, transform 2.2s var(--ease-out) 0.4s; }

  .net__ring--ai { animation: net-sway 16s var(--ease-in-out) infinite alternate; }
  .net__ring--product { animation: net-sway 22s var(--ease-in-out) -6s infinite alternate-reverse; }
  .net__ring--growth { animation: net-sway 28s var(--ease-in-out) -3s infinite alternate; }
  .net__core { animation: net-breathe 6s ease-in-out infinite alternate; }
  .net__pulse { animation: net-pulse 3.4s var(--ease-in-out) var(--pd, 0s) infinite; }
  .s-hero.is-paused .net * { animation-play-state: paused; }

  @keyframes net-sway { from { transform: rotate(-8deg); } to { transform: rotate(8deg); } }
  @keyframes net-breathe { to { transform: scale(1.04); } }
  @keyframes net-pulse {
    0% { transform: translate(0, 0); opacity: 0; }
    15%, 80% { opacity: 1; }
    100% { transform: translate(var(--tx), var(--ty)); opacity: 0; }
  }
}

/* ==========================================================================
   Service index
   ========================================================================== */
.sx {
  position: relative;
  background: var(--off-white);
  color: var(--black);
  padding-block: clamp(5rem, 9vw, 10rem) clamp(5rem, 8vw, 9rem);
}
.sx__head { text-align: center; }
.sx__eyebrow {
  display: inline-flex; align-items: center; gap: 0.9rem;
  font-size: var(--fs-small); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
}
.sx__eyebrow::before, .sx__eyebrow::after { content: ""; width: 2rem; height: 1px; background: currentColor; opacity: 0.4; }
.sx__statement {
  margin-top: 1.25rem;
  font-size: clamp(1.8rem, 0.9rem + 2.8vw, 4.2rem);
  font-weight: 700; line-height: 1.06; letter-spacing: -0.045em;
  color: #777;
}
.sx__statement .mask { display: block; width: fit-content; margin-inline: auto; }

.sx__industries { display: inline-flex; align-items: center; gap: 0.9rem; margin-top: clamp(1.5rem, 3vw, 2.5rem); padding-bottom: 0.4rem; border-bottom: 1px solid rgb(0 0 0 / 0.25); font-size: var(--fs-small); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; transition: color 0.35s, border-color 0.35s; }
.sx__industries svg { width: 1.5rem; height: 0.75rem; transition: translate 0.5s var(--ease-out); }
.sx__industries:is(:hover, :focus-visible) { color: var(--blue); border-color: var(--blue); }
.sx__industries:is(:hover, :focus-visible) svg { translate: 0.35rem 0; }
.sx__groups { margin-top: clamp(3.5rem, 7vw, 8rem); }
.sx-group, .svc { scroll-margin-top: calc(var(--header-h) + 1rem); }
.sx-group + .sx-group { margin-top: clamp(3.5rem, 6vw, 6.5rem); }
.sx-group__head {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--black);
  font-size: var(--fs-small); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase;
}
.sx-row__link {
  position: relative;
  display: grid;
  grid-template-columns: clamp(3.25rem, 6.5vw, 7rem) minmax(0, 1.35fr) minmax(0, 0.85fr) 3.25rem;
  align-items: center; gap: 1.5rem;
  padding-block: clamp(1.1rem, 2.1vw, 2.2rem);
  border-bottom: 1px solid var(--border-light);
}
.sx-row__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, var(--purple), var(--blue));
  transform: scaleX(0); transform-origin: 0 50%;
  transition: transform 0.8s var(--ease-out);
}
.sx-row__num { font-size: var(--fs-small); font-weight: 600; letter-spacing: 0.08em; color: #8a8a8a; font-variant-numeric: tabular-nums; transition: transform 0.6s var(--ease-out), color 0.3s; }
.sx-row__title {
  font-size: clamp(1.6rem, 0.85rem + 2.35vw, 3.9rem);
  font-weight: 600; line-height: 1; letter-spacing: -0.045em;
  transition: transform 0.7s var(--ease-out), color 0.35s;
}
.sx-row__desc { max-width: 24em; font-size: clamp(0.9rem, 0.8rem + 0.25vw, 1.08rem); line-height: 1.45; color: #6d6d6d; transition: transform 0.7s var(--ease-out), color 0.35s; }
.sx-row__go {
  justify-self: end;
  display: grid; place-items: center;
  width: 3.25rem; aspect-ratio: 1; border-radius: 50%;
  border: 1px solid rgb(0 0 0 / 0.16);
  transition: background-color 0.35s, border-color 0.35s, color 0.35s;
}
.sx-row__go svg { width: 1.1rem; height: 0.55rem; rotate: -45deg; transition: rotate 0.6s var(--ease-out); }
.sx-row__link:is(:hover, :focus-visible)::after { transform: none; }
.sx-row__link:is(:hover, :focus-visible) .sx-row__num { color: var(--blue); transform: translateX(0.6rem); }
.sx-row__link:is(:hover, :focus-visible) .sx-row__title { color: var(--blue); transform: translateX(clamp(0.5rem, 1.2vw, 1.25rem)); }
.sx-row__link:is(:hover, :focus-visible) .sx-row__desc { color: var(--black); }
.sx-row__link:is(:hover, :focus-visible) .sx-row__go { background: var(--blue); border-color: var(--blue); color: var(--white); }
.sx-row__link:is(:hover, :focus-visible) .sx-row__go svg { rotate: 0deg; }
.sx-row__link:focus-visible { outline-offset: -2px; }
@media (hover: hover) {
  .sx-group__list:hover .sx-row__link:not(:hover) .sx-row__title { color: #9a9a9a; }
}

/* cursor-following preview (desktop) */
.sx-preview { position: fixed; left: 0; top: 0; z-index: 60; pointer-events: none; }
.sx-preview__disc {
  position: relative;
  width: clamp(12rem, 16vw, 17rem); aspect-ratio: 1;
  border-radius: 50%;
  background: var(--black); color: var(--white);
  overflow: hidden;
  translate: -50% calc(-100% - 1.75rem);
  opacity: 0; scale: 0.6;
  transition: opacity 0.3s var(--ease-soft), scale 0.6s var(--ease-out);
}
.sx-preview.is-shown .sx-preview__disc { opacity: 1; scale: 1; }
.sx-preview__item { position: absolute; inset: 6%; opacity: 0; transition: opacity 0.3s; }
.sx-preview__item.is-active { opacity: 1; }
.sx-preview__item svg { width: 100%; height: 100%; }

@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) and (animation-range: entry) {
    .s-hero__grid { animation: s-grid linear both; animation-timeline: scroll(root); animation-range: 0 100vh; }
    @keyframes s-grid { to { translate: 0 12vh; opacity: 0.4; } }
  }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 64em) {
  .s-hero__visual { top: calc(var(--header-h) + 1rem); translate: 0; right: -18%; width: 70vw; }
  .s-hero__foot { grid-template-columns: 1fr; }
  .sx-row__link { grid-template-columns: clamp(3rem, 7vw, 5rem) minmax(0, 1fr) minmax(0, 0.8fr); }
  .sx-row__go { display: none; }
}

@media (max-width: 48em) {
  .s-hero__inner { padding-top: calc(var(--header-h) + 64vw); }
  .s-hero__visual { right: -22%; width: 92vw; top: calc(var(--header-h) - 12vw); opacity: 0.85; }
  .net__labels { display: none; }
  .s-hero__title { font-size: clamp(2.9rem, 14.5vw, 5.5rem); }
  .s-hero__disciplines a { grid-template-columns: 4.25rem 1fr auto; }

  .sx__head { text-align: left; }
  .sx__statement .mask { margin-inline: 0; }
  .sx-row__link { grid-template-columns: 2.75rem minmax(0, 1fr); row-gap: 0.5rem; }
  .sx-row__num { align-self: start; padding-top: 0.45rem; }
  .sx-row__desc { grid-column: 2; }
}