/* ==========================================================================
   Service explorer
   Desktop (≥1025px): one pinned stage; scroll steps swap the active service.
   Tablet/mobile: a plain vertical sequence grouped by discipline.
   ========================================================================== */
.explorer {
  --ex-fg: var(--white);
  --ex-muted: rgb(255 255 255 / 0.56);
  --ex-line: rgb(255 255 255 / 0.14);
  --ex-surface: #0f0f12;
  --v-surface: rgb(255 255 255 / 0.035);
  position: relative;
  background: var(--black);
  color: var(--ex-fg);
}
/* the root, a group or a panel can switch mood */
.explorer[data-mood="light"], .explorer__group[data-mood="light"], .svc[data-mood="light"] {
  --ex-fg: var(--black);
  --ex-muted: rgb(0 0 0 / 0.55);
  --ex-line: rgb(0 0 0 / 0.12);
  --ex-surface: var(--white);
  --v-surface: rgb(0 0 0 / 0.025);
}

/* ---------- panel content (shared) ---------- */
.svc { color: var(--ex-fg); }
.svc__meta {
  display: flex; align-items: center; gap: 1.25rem;
  font-size: var(--fs-small); font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
}
.svc__num { color: var(--blue); font-variant-numeric: tabular-nums; }
.svc__num span { color: var(--ex-muted); }
.svc__disc { display: inline-flex; align-items: center; gap: 1rem; color: var(--ex-muted); }
.svc__disc::before { content: ""; width: 2rem; height: 1px; background: currentColor; }
.svc__title {
  margin-top: clamp(0.9rem, 2.4vh, 2rem);
  font-size: clamp(2.6rem, 6.4vw, 6.1rem); /* widest line ≈ 5.4em must fit the main column */
  font-weight: 700; line-height: 0.92; letter-spacing: -0.055em;
}
.svc__title .mask { display: block; width: fit-content; }
.svc__title:focus { outline: none; }
.svc__desc {
  max-width: 30em;
  margin-top: clamp(1.1rem, 3vh, 2.25rem);
  font-size: clamp(1rem, 0.78rem + 0.45vw, 1.35rem); line-height: 1.45; letter-spacing: -0.01em;
  color: var(--ex-fg); opacity: 0.78;
}
.svc__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 2.25rem; margin-top: clamp(1.4rem, 3.4vh, 2.75rem); }
.svc__page { position: relative; display: inline-flex; align-items: center; gap: 0.7rem; padding-block: 0.3rem; font-size: clamp(0.95rem, 0.85rem + 0.2vw, 1.1rem); font-weight: 600; }
.svc__page svg { width: 1.3rem; height: 0.65rem; transition: transform 0.5s var(--ease-out); }
.svc__page::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor; transform: scaleX(0.3); transform-origin: 0 50%; transition: transform 0.6s var(--ease-out); }
.svc__page:is(:hover, :focus-visible) { color: var(--blue); }
.svc__page:is(:hover, :focus-visible)::after { transform: none; }
.svc__page:is(:hover, :focus-visible) svg { transform: translateX(0.3rem); }
.svc__toggle {
  display: inline-flex; align-items: center; gap: 1rem;
  font-size: clamp(0.95rem, 0.85rem + 0.2vw, 1.1rem); font-weight: 600; letter-spacing: -0.01em;
}
.svc__plus {
  position: relative;
  width: 2.75rem; aspect-ratio: 1; border-radius: 50%;
  border: 1px solid var(--ex-line);
  transition: background-color 0.35s, border-color 0.35s, rotate 0.6s var(--ease-out);
}
.svc__plus::before, .svc__plus::after, .svc__close span::before, .svc__close span::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  width: 0.8rem; height: 1.5px; margin: -0.75px 0 0 -0.4rem;
  background: currentColor;
}
.svc__plus::after { rotate: 90deg; }
.svc__toggle:is(:hover, :focus-visible) .svc__plus { border-color: var(--blue); color: var(--blue); }
.svc__toggle[aria-expanded="true"] .svc__plus { rotate: 45deg; background: var(--blue); border-color: var(--blue); color: var(--white); }

.svc__visual { aspect-ratio: 1; }
.svc__visual .v { width: 100%; height: 100%; }

.svc__detail-inner {
  position: relative;
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.75rem clamp(1.5rem, 2.5vw, 2.5rem);
}
.svc__h { margin-bottom: 0.9rem; font-size: var(--fs-micro); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ex-muted); }
.svc__list li {
  display: flex; align-items: baseline; gap: 0.7rem;
  padding-block: 0.55rem;
  border-top: 1px solid var(--ex-line);
  font-size: clamp(0.92rem, 0.8rem + 0.25vw, 1.05rem); font-weight: 500;
}
.svc__list li::before { content: ""; flex: none; width: 0.6rem; height: 1.5px; background: var(--blue); translate: 0 -0.3em; }
.svc__chips { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.svc__chips li { padding: 0.42rem 0.8rem; border: 1px solid var(--ex-line); border-radius: 999px; font-size: 0.84rem; font-weight: 500; }
.svc__cta { grid-column: 1 / -1; justify-self: start; }
.svc__close {
  position: absolute; top: -0.5rem; right: -0.5rem;
  width: 2.5rem; aspect-ratio: 1; border-radius: 50%;
  border: 1px solid var(--ex-line);
  transition: border-color 0.3s, color 0.3s;
}
.svc__close span::before { rotate: 45deg; }
.svc__close span::after { rotate: -45deg; }
.svc__close:is(:hover, :focus-visible) { border-color: var(--blue); color: var(--blue); }

/* ---------- illustrations ---------- */
.v { overflow: visible; color: var(--ex-fg, inherit); }
.v-soft { fill: none; stroke: currentColor; stroke-opacity: 0.16; }
.v-line, .v-line path { fill: none; stroke: currentColor; stroke-opacity: 0.3; stroke-width: 1.2; }
.v-panel { fill: var(--v-surface, rgb(255 255 255 / 0.04)); stroke: currentColor; stroke-opacity: 0.22; stroke-width: 1.2; }
.v-hot { stroke: var(--blue); stroke-opacity: 1; }
.v-text { fill: currentColor; fill-opacity: 0.24; }
.v-text--inv { fill: var(--white); fill-opacity: 0.85; }
.v-dot { fill: currentColor; fill-opacity: 0.38; }
.v-accent { fill: var(--blue); }
.v-accent-stroke { fill: none; stroke: var(--blue); stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.v-accent-area { fill: var(--blue); fill-opacity: 0.12; }
.v-flow { fill: none; stroke: var(--blue); stroke-width: 2; stroke-linecap: round; stroke-dasharray: 3 11; }
.v-flow--solid { stroke-dasharray: none; stroke-width: 2.5; }
.v-label { font: 600 11px/1 var(--font-body); letter-spacing: 0.12em; fill: currentColor; fill-opacity: 0.62; }
.v-label--inv { fill: var(--white); fill-opacity: 1; }
.v-label--accent { fill: var(--blue); fill-opacity: 1; }
.v g { transform-box: view-box; }

@media (prefers-reduced-motion: no-preference) {
  .v-flow:not(.v-flow--solid) { animation: v-dash 1.4s linear infinite; }
  .v-late { animation-delay: -0.7s; }
  .v-float { animation: v-float 5s ease-in-out var(--vd, 0s) infinite alternate; }
  .v-blink { animation: v-blink 1.1s ease-in-out var(--vd, 0s) infinite; }
  .v-queue { animation: v-queue 2.2s linear infinite; }
  /* only the active illustration moves, and only while it's on screen */
  .v * { animation-play-state: paused; }
  .explorer.is-visible .svc.is-active .v *,
  .sx-preview.is-shown .sx-preview__item.is-active .v * { animation-play-state: running; }

  @keyframes v-dash { to { stroke-dashoffset: -28; } }
  @keyframes v-float { from { transform: translateY(-5px); } to { transform: translateY(5px); } }
  @keyframes v-blink { 50% { opacity: 0.15; } }
  @keyframes v-queue { from { transform: translateX(-36px); } }
}

/* ---------- progress ---------- */
.explorer__progress {
  display: flex; align-items: center; gap: 0.9rem;
  font-size: var(--fs-small); font-weight: 600; letter-spacing: 0.08em;
  color: var(--ex-fg);
}
.explorer__count { font-variant-numeric: tabular-nums; white-space: nowrap; }
.explorer__bar { position: relative; flex: 1; max-width: 6.5rem; height: 1px; background: var(--ex-line); overflow: hidden; }
.explorer__bar span { position: absolute; inset: 0; background: currentColor; transform-origin: 0 50%; transform: scaleX(0.1); transition: transform 0.8s var(--ease-out); }
.explorer__cat { color: var(--ex-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; letter-spacing: 0.12em; text-transform: uppercase; font-size: var(--fs-micro); }

/* ==========================================================================
   Desktop: pinned stage
   ========================================================================== */
@media (min-width: 64.0625em) {
  .explorer { --step: 78svh; }
  .explorer__stage {
    position: sticky; top: 0;
    isolation: isolate;
    height: 100svh;
    display: grid;
    grid-template-columns: clamp(14.5rem, 17vw, 19.5rem) minmax(0, 1fr);
    grid-template-rows: minmax(0, 1fr) auto;
    column-gap: clamp(2rem, 4.5vw, 6rem);
    padding: calc(var(--header-h) + 1vh) max(var(--gutter), (100% - var(--container)) / 2) clamp(1.5rem, 4vh, 3rem);
    overflow: clip;
    color: var(--ex-fg);
    transition: color 0.6s var(--ease-soft);
  }
  .explorer__mood {
    position: absolute; inset: 0; z-index: -2;
    background: var(--off-white);
    opacity: 0;
    transition: opacity 0.9s var(--ease-soft);
  }
  .explorer[data-mood="light"] .explorer__mood { opacity: 1; }

  .explorer__nav { grid-column: 1; grid-row: 1; align-self: center; }
  .explorer__progress { grid-column: 1; grid-row: 2; }
  .explorer__cat { display: none; }
  .explorer__panels { grid-column: 2; grid-row: 1 / span 2; display: grid; min-height: 0; }
  .explorer__group { display: contents; }
  .explorer__group-head { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

  .explorer__steps { margin-top: -100svh; pointer-events: none; }
  .explorer__step { height: var(--step); }
  .explorer__step:first-child { height: calc(var(--step) + 12svh); }
  .explorer__step:last-child { height: 100svh; }

  /* nav — the active item gets the dash, like the process list in the brand pages */
  .explorer__nav-group + .explorer__nav-group { margin-top: clamp(1rem, 3.2vh, 2.25rem); }
  .explorer__nav-label { margin-bottom: 0.55rem; font-size: var(--fs-micro); font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ex-muted); }
  .explorer__nav-btn {
    position: relative;
    display: flex; align-items: baseline; gap: 0.7rem;
    width: 100%; padding-block: 0.28rem;
    text-align: left;
    font-size: clamp(0.84rem, 0.68rem + 0.3vw, 1.05rem); font-weight: 500; letter-spacing: -0.01em;
    color: var(--ex-muted);
    transition: color 0.35s, transform 0.6s var(--ease-out);
  }
  .explorer__nav-btn::before {
    content: ""; position: absolute; left: -1.6rem; top: 50%;
    width: 1.1rem; height: 1.5px; background: var(--blue);
    transform: scaleX(0); transform-origin: 0 50%;
    transition: transform 0.6s var(--ease-out);
  }
  .explorer__nav-num { font-size: 0.72em; letter-spacing: 0.06em; font-variant-numeric: tabular-nums; }
  .explorer__nav-btn:is(:hover, :focus-visible) { color: var(--ex-fg); }
  .explorer__nav-btn[aria-current] { color: var(--blue); font-weight: 600; transform: translateX(1.6rem); }
  .explorer__nav-btn[aria-current]::before { transform: none; }

  /* panels */
  .svc {
    grid-area: 1 / 1;
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    column-gap: clamp(1.5rem, 3vw, 4rem);
    min-height: 0;
    visibility: hidden;
    transition: visibility 0s linear 0.9s;
  }
  .svc.is-active { visibility: visible; transition-delay: 0s; }
  .svc__main { grid-column: 1; grid-row: 1; position: relative; z-index: 1; }
  .svc__visual { grid-column: 2; grid-row: 1; justify-self: center; width: min(100%, 66svh); }
  .svc__ghost {
    position: absolute; z-index: -1; right: -3%; bottom: -6%;
    font-size: clamp(14rem, 30vw, 36rem); font-weight: 700; line-height: 0.8; letter-spacing: -0.06em;
    color: transparent; -webkit-text-stroke: 1.5px var(--ex-line);
    pointer-events: none; user-select: none;
  }

  .svc__detail { grid-column: 2; grid-row: 1; position: relative; z-index: 2; align-self: center; }
  .svc__detail-inner {
    max-height: calc(100svh - var(--header-h) - 5rem);
    overflow-y: auto; overscroll-behavior: contain;
    padding: clamp(1.75rem, 2.6vw, 2.75rem);
    background: var(--ex-surface);
    border: 1px solid var(--ex-line);
    border-radius: clamp(1rem, 1.3vw, 1.5rem);
  }
  .svc__detail-inner { grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
  .svc__list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 1.25rem; }
  .svc__list li { font-size: 0.92rem; }
  .svc__close { top: 1rem; right: 1rem; }
  .svc__detail { opacity: 0; transform: translate3d(2rem, 0, 0); transition: opacity 0.35s var(--ease-soft), transform 0.6s var(--ease-out); }
  .svc__detail.is-open { opacity: 1; transform: none; }
  .svc__visual { transition: opacity 0.6s var(--ease-soft), transform 1.1s var(--ease-out); }
  .svc.has-detail .svc__visual { opacity: 0.1; transform: scale(0.92); }

  @media (prefers-reduced-motion: no-preference) {
    .svc .svc__title .mask > span { transition: transform 0.85s var(--ease-out); transition-delay: calc(var(--li) * 50ms); }
    .svc.is-prev .svc__title .mask > span { transform: translate3d(0, -108%, 0); }
    .svc.is-next .svc__title .mask > span { transform: translate3d(0, 108%, 0); }
    .svc.is-active .svc__title .mask > span { transition-delay: calc(0.16s + var(--li) * 70ms); }

    .svc :is(.svc__meta, .svc__desc, .svc__actions) { transition: opacity 0.45s var(--ease-soft), transform 0.8s var(--ease-out); }
    .svc.is-prev :is(.svc__meta, .svc__desc, .svc__actions) { opacity: 0; transform: translate3d(0, -1.25rem, 0); }
    .svc.is-next :is(.svc__meta, .svc__desc, .svc__actions) { opacity: 0; transform: translate3d(0, 1.25rem, 0); }
    .svc.is-active .svc__meta { transition-delay: 0.1s; }
    .svc.is-active .svc__desc { transition-delay: 0.32s; }
    .svc.is-active .svc__actions { transition-delay: 0.4s; }

    .svc.is-prev .svc__visual { opacity: 0; transform: translate3d(-9%, 0, 0) scale(0.94); }
    .svc.is-next .svc__visual { opacity: 0; transform: translate3d(9%, 0, 0) scale(0.94); }
    .svc.is-active .svc__visual { transition-delay: 0.12s; }

    .svc__ghost { transition: opacity 0.7s var(--ease-soft), transform 1.2s var(--ease-out); }
    .svc.is-prev .svc__ghost { opacity: 0; transform: translate3d(-14%, 0, 0); }
    .svc.is-next .svc__ghost { opacity: 0; transform: translate3d(14%, 0, 0); }
  }
  @media (prefers-reduced-motion: reduce) {
    .svc:not(.is-active) { opacity: 0; }
  }
}

/* ==========================================================================
   Tablet / mobile: vertical sequence
   ========================================================================== */
@media (max-width: 64em) {
  .explorer__mood, .explorer__nav, .explorer__steps, .svc__ghost, .svc__close { display: none; }
  .explorer__group { background: var(--black); color: var(--ex-fg); padding-block: clamp(4rem, 12vw, 6.5rem) 1rem; }
  .explorer__group[data-mood="light"] { background: var(--off-white); }
  .explorer__group-head, .svc { width: min(var(--container), 100% - var(--gutter) * 2); margin-inline: auto; }
  .explorer__group-head .s-range { color: var(--blue); }
  .explorer__group-title { margin-top: 0.75rem; font-size: clamp(2.6rem, 10vw, 5rem); font-weight: 700; line-height: 0.95; letter-spacing: -0.05em; }
  .explorer__group-intro { margin-top: 0.75rem; font-size: 1.05rem; color: var(--ex-muted); }

  .svc { display: grid; grid-template-columns: minmax(0, 1fr); margin-top: 3rem; padding-block: 2.5rem; border-top: 1px solid var(--ex-line); }
  .svc__main { display: contents; }
  .svc__meta { order: 1; }
  .svc__title { order: 2; font-size: clamp(2.3rem, 9.5vw, 4.5rem); }
  .svc__visual { order: 3; width: min(100%, 24rem); margin: 2rem auto 0.5rem; }
  .svc__desc { order: 4; }
  .svc__actions { order: 5; }
  .svc__detail { order: 6; }
  .svc__detail-inner { padding-top: 1.75rem; }
  .svc__detail.is-open .svc__detail-inner { animation: svc-open 0.5s var(--ease-out); }
  @keyframes svc-open { from { opacity: 0; transform: translate3d(0, -0.75rem, 0); } }

  .explorer__progress {
    position: sticky; bottom: 1rem; z-index: 5;
    width: min(100% - var(--gutter) * 2, 22rem);
    margin: 1rem auto 0;
    padding: 0.75rem 1.1rem;
    border-radius: 999px;
    background: #111114; color: var(--white);
    border: 1px solid rgb(255 255 255 / 0.12);
    --ex-line: rgb(255 255 255 / 0.2);
    --ex-muted: rgb(255 255 255 / 0.6);
  }
  .explorer__bar { max-width: 4rem; }
}

@media (max-width: 40em) {
  .svc__detail-inner { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .svc__detail.is-open .svc__detail-inner { animation: none; }
}