/* =====================================================================================
   Optronix v4: company pages (about, why-optronix, our-partners, newsroom)
   Shared family pieces first (sheet index, explore cards, logo tiles), then one block
   per page. Tokens only; paper sections re-theme through the system tokens.
   ===================================================================================== */

/* ---------------------------------------------------------------- shared: hero tweaks */
.co-hero .page-hero__title { max-width: 13em; }
/* 900-1199px: the copy column is narrow next to the visual, so the title steps down a
   little to keep its phrase breaks; it meets the system size at 1200px */
@media (min-width: 900px) and (max-width: 1199px) {
  .co-hero .page-hero__title { font-size: clamp(2.5rem, 0.4px + 6vw, 5.5rem); }
}
.co-hero .page-hero__visual { --ratio: 600 / 560; }
.co-hero--text .page-hero__title { max-width: 14em; }

/* ---------------------------------------------------------------- shared: sheet index
   A drawing-set style index of the company pages, under every hero. */
.co-sheets {
  position: relative; z-index: 2;
  border-bottom: 1px solid var(--line);
  background: var(--ink-1);
}
.co-sheets__scroll {
  overflow-x: auto; overscroll-behavior-x: contain; scrollbar-width: none;
  -webkit-mask-image: linear-gradient(90deg, #000 85%, transparent);
  mask-image: linear-gradient(90deg, #000 85%, transparent);
}
.co-sheets__scroll::-webkit-scrollbar { display: none; }
@media (min-width: 900px) { .co-sheets__scroll { -webkit-mask-image: none; mask-image: none; } }
.co-sheets__list { display: flex; gap: 0; min-width: max-content; }
.co-sheets__list > li { flex: none; }
.co-sheets__lbl {
  display: none;
}
@media (min-width: 900px) {
  .co-sheets__lbl {
    display: flex; align-items: center; gap: 10px; padding-right: clamp(20px, 3vw, 48px); margin-right: 4px;
    font: 500 10.5px/1 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--fg-4);
    border-right: 1px solid var(--line);
  }
}
.co-sheets a {
  position: relative; display: flex; align-items: center; gap: 10px;
  height: 58px; padding: 0 clamp(14px, 1.8vw, 26px);
  color: var(--fg-3); text-decoration: none; font-size: 0.9375rem; font-weight: 500; white-space: nowrap;
  transition: color var(--t-fast), background-color var(--t-fast);
}
.co-sheets__n { font: 500 10.5px/1 var(--font-mono); letter-spacing: 0.1em; color: var(--fg-4); transition: color var(--t-fast); }
.co-sheets a::after {
  content: ""; position: absolute; left: clamp(14px, 1.8vw, 26px); right: clamp(14px, 1.8vw, 26px); bottom: -1px; height: 2px;
  background: var(--grad-mark-h); transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-slow) var(--ease-out);
}
.co-sheets a:hover { color: var(--fg); }
.co-sheets a:hover .co-sheets__n { color: var(--accent-text); }
.co-sheets a:hover::after { transform: scaleX(0.35); }
.co-sheets a[aria-current="page"] { color: var(--fg); }
.co-sheets a[aria-current="page"] .co-sheets__n { color: var(--cyan); }
.co-sheets a[aria-current="page"]::after { transform: scaleX(1); }
.co-sheets .container { display: flex; align-items: center; }

/* ---------------------------------------------------------------- shared: logo tiles
   Partner logos are dark or full colour, so they always sit on a white tile. */
.co-logo {
  display: grid; place-items: center; flex: none;
  width: var(--lw, 168px); aspect-ratio: var(--lr, 16 / 7); padding: 0;
  border-radius: var(--r-2); background: #fff;
  box-shadow: 0 0 0 1px rgba(11, 11, 18, 0.06), 0 14px 30px -18px rgba(0, 0, 0, 0.55);
}
.co-logo img { width: var(--iw, 76%); height: var(--ih, 62%); object-fit: contain; }
.co-logo--sm { --lw: 112px; }
.co-logo--icon { color: var(--green-ink); }
.co-logo--icon svg { width: 46%; height: auto; fill: none; stroke: #2f7d1a; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }

/* ---------------------------------------------------------------- shared: section foot links */
.co-foot { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-4) var(--s-6); margin-top: clamp(32px, 4vw, 56px); }

/* ---------------------------------------------------------------- shared: explore cards */
.co-explore .card__icon { margin-bottom: var(--s-2); }
.co-explore .card { min-height: 240px; }
/* two paper sections in a row: overlap by a pixel so no dark hairline shows between them */
.section--paper + .co-explore.section--paper { margin-top: -1px; }
@media (max-width: 699px) {
  .co-explore .grid--4 { --cols: 2; --gap: 10px; }
  .co-explore .card { min-height: 0; --card-pad: 18px; gap: 10px; }
  .co-explore .card__icon { width: 42px; height: 42px; }
  .co-explore .card__title { font-size: 1.0625rem; }
  .co-explore .card__text { font-size: 0.8125rem; line-height: 1.45; }
  .co-explore .card__arrow { width: 34px; height: 34px; }
}

/* =====================================================================================
   ABOUT
   ===================================================================================== */

/* ---------------------------------------------------------------- hero: isometric lifecycle stack */
.co-stack { position: relative; width: 100%; height: 100%; }
.co-stack__svg { width: 100%; height: 100%; overflow: visible; }
.co-stack__svg .sl__t { fill: rgba(11, 11, 20, 0.94); stroke: color-mix(in srgb, var(--c) 55%, transparent); stroke-width: 1; vector-effect: non-scaling-stroke; transition: fill var(--t-med), stroke var(--t-med); }
.co-stack__svg .sl__l { fill: color-mix(in srgb, var(--c) 16%, #0a0a12); stroke: color-mix(in srgb, var(--c) 40%, transparent); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-stack__svg .sl__r { fill: color-mix(in srgb, var(--c) 9%, #07070c); stroke: color-mix(in srgb, var(--c) 40%, transparent); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-stack__svg .pk { fill: none; stroke: color-mix(in srgb, var(--c) 70%, transparent); stroke-width: 1; vector-effect: non-scaling-stroke; transition: stroke var(--t-med); }
.co-stack__svg .pk--faint { stroke: color-mix(in srgb, var(--c) 22%, transparent); }
.co-stack__svg .pk--dash { stroke-dasharray: 4 4; }
.co-stack__svg .pk--fill { fill: var(--c); stroke: none; }
.co-stack__svg .pk--sel { fill: color-mix(in srgb, var(--c) 28%, transparent); stroke: var(--c); }
.co-stack__svg .pk--route { stroke: var(--cyan); stroke-width: 1.4; stroke-dasharray: 5 4; }
.co-stack__svg .rk__t { fill: color-mix(in srgb, var(--c) 30%, #0b0b14); stroke: color-mix(in srgb, var(--c) 80%, transparent); stroke-width: 0.8; vector-effect: non-scaling-stroke; }
.co-stack__svg .rk__l { fill: #0c0c16; stroke: color-mix(in srgb, var(--c) 55%, transparent); stroke-width: 0.8; vector-effect: non-scaling-stroke; }
.co-stack__svg .rk__r { fill: #08080f; stroke: color-mix(in srgb, var(--c) 45%, transparent); stroke-width: 0.8; vector-effect: non-scaling-stroke; }
.co-stack__svg .sl__lead { fill: none; stroke: var(--line-3); stroke-width: 1; stroke-dasharray: 2 3; vector-effect: non-scaling-stroke; transition: stroke var(--t-med); }
.co-stack__svg .sl__dot { fill: var(--ink-0); stroke: var(--c); stroke-width: 1.2; vector-effect: non-scaling-stroke; transition: fill var(--t-med); }
.co-stack__svg .co-stack__slab { transition: transform 0.6s var(--ease-out), opacity var(--t-med); transform-box: view-box; }
.co-stack__svg .co-stack__dim path { fill: none; stroke: var(--line-3); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-stack__svg .co-stack__dim text { fill: var(--fg-4); font: 500 9.5px var(--font-mono); letter-spacing: 0.14em; }
.co-stack__svg .co-stack__riser path { vector-effect: non-scaling-stroke; }
.co-stack.is-active .co-stack__slab { opacity: 0.55; }
.co-stack .co-stack__slab.is-on { opacity: 1; transform: translateY(-7px); }
.co-stack .co-stack__slab.is-on .sl__t { fill: color-mix(in srgb, var(--c) 14%, #0b0b14); stroke: var(--c); }
.co-stack .co-stack__slab.is-on .pk { stroke: var(--c); }
.co-stack .co-stack__slab.is-on .sl__lead { stroke: var(--c); stroke-dasharray: none; }
.co-stack .co-stack__slab.is-on .sl__dot { fill: var(--c); }
.co-stack__labels {
  position: absolute; left: 69%; right: 0; top: 0; bottom: 0; margin: 0; padding: 0; list-style: none; pointer-events: none;
}
.co-stack__labels li {
  position: absolute; left: 0; right: 0; top: var(--y); transform: translateY(-50%);
  display: flex; align-items: baseline; gap: 8px;
  font: 500 10.5px/1.25 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3);
  transition: color var(--t-med), transform 0.6s var(--ease-out);
  pointer-events: auto; cursor: default;
}
.co-stack__labels b { font-weight: 500; color: var(--c); flex: none; }
.co-stack__labels li.is-on { color: var(--fg); transform: translate(4px, -50%); }
.co-stack__labels .s { display: none; }
@media (max-width: 1279px) { .co-stack__labels li { font-size: 9.5px; } }
@media (max-width: 599px) {
  .co-stack__labels .l { display: none; }
  .co-stack__labels .s { display: inline; }
  .co-stack__labels li { font-size: 9px; gap: 6px; }
}

/* ---------------------------------------------------------------- 01 lifecycle strip */
.co-life {
  position: relative; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid var(--line); border-left: 1px solid var(--line);
}
.co-life::before {
  /* one light runs across all six stage bars */
  content: ""; position: absolute; left: 0; top: -1px; height: 3px; width: 14%; z-index: 2; pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(233, 251, 255, 0.95), transparent);
  filter: drop-shadow(0 0 6px var(--cyan));
  animation: co-sweep 6.5s var(--ease-in-out) infinite;
  opacity: 0.9;
}
@keyframes co-sweep { 0% { transform: translateX(-100%); } 70%, 100% { transform: translateX(720%); } }
.co-life__stage {
  position: relative; display: flex; flex-direction: column; gap: var(--s-3);
  padding: clamp(22px, 2vw, 30px) clamp(16px, 1.5vw, 24px) clamp(22px, 2vw, 28px);
  border-right: 1px solid var(--line); border-bottom: 1px solid var(--line);
  transition: background-color var(--t-med) var(--ease-out);
}
.co-life__stage::before {
  content: ""; position: absolute; left: -1px; right: 0; top: -1px; height: 3px; background: var(--c);
  opacity: 0.7; transition: opacity var(--t-med), box-shadow var(--t-med);
}
.co-life__stage:hover, .co-life__stage:focus-within { background: color-mix(in srgb, var(--c) 6%, transparent); }
.co-life__stage:hover::before, .co-life__stage:focus-within::before { opacity: 1; box-shadow: 0 0 18px var(--c); }
.co-life__num { font: 500 var(--fs-mono)/1 var(--font-mono); letter-spacing: var(--track-mono); color: var(--c); }
.co-life__title { font-size: clamp(1.0625rem, 0.98rem + 0.3vw, 1.25rem); line-height: 1.22; letter-spacing: -0.012em; color: var(--fg); font-weight: 500; min-height: 2.5em; }
.co-life__items { display: grid; gap: 7px; font-size: 0.875rem; line-height: 1.4; color: var(--fg-2); }
.co-life__items li { position: relative; padding-left: 14px; }
.co-life__items li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 6px; height: 1px; background: var(--c); }
.co-life__link {
  margin-top: auto; padding-top: var(--s-3);
  display: inline-flex; align-items: center; gap: 6px; align-self: flex-start;
  font: 500 10.5px/1.4 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); text-decoration: none;
  transition: color var(--t-fast);
}
.co-life__link svg { width: 13px; height: 13px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform var(--t-med) var(--ease-out); }
.co-life__link:hover { color: var(--fg); }
.co-life__link:hover svg { transform: translateX(3px); }
@media (max-width: 1099px) { .co-life { grid-template-columns: repeat(3, minmax(0, 1fr)); } .co-life::before { display: none; } }
@media (max-width: 639px) {
  .co-life { grid-template-columns: minmax(0, 1fr); }
  .co-life__title { min-height: 0; }
}

/* ---------------------------------------------------------------- 02 where we work: line diagram */
.co-where { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 112px); align-items: center; }
@media (max-width: 999px) { .co-where { grid-template-columns: minmax(0, 1fr); } }
.co-where .ticks { margin-top: var(--s-6); }
.co-where .stats { margin-top: var(--s-7); }
.co-where .stats .stat__value { font-size: clamp(2.5rem, 1.9rem + 2vw, 3.75rem); }

.co-lines {
  position: relative; padding: clamp(24px, 3vw, 40px); padding-left: clamp(24px, 3vw, 40px);
  border: 1px solid var(--line-2); border-radius: var(--r-3);
  background:
    radial-gradient(90% 70% at 0% 0%, rgba(140, 82, 255, 0.12), transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px) 0 0 / 100% 40px,
    var(--ink-2);
}
.co-lines__head { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); margin-bottom: var(--s-6); }
.co-lines__hq { display: inline-flex; align-items: center; gap: 12px; font-size: 0.9375rem; color: var(--fg); font-weight: 500; }
.co-lines__hq i {
  position: relative; width: 16px; height: 16px; border-radius: 50%; flex: none;
  background: var(--ink-0); box-shadow: inset 0 0 0 2px var(--ox-300), 0 0 0 5px rgba(161, 163, 255, 0.12);
}
.co-lines__hq i::after { content: ""; position: absolute; inset: 5px; border-radius: 50%; background: var(--ox-300); }
.co-lines__hq small { display: block; font: 500 10px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.co-lines__key { font: 500 10px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-4); text-align: right; }
.co-lines .co-lines__list { position: relative; display: grid; gap: var(--s-5); padding-left: 26px; }
.co-lines__list::before {
  /* the spine from HQ */
  content: ""; position: absolute; left: 7px; top: -34px; bottom: 18px; width: 1px;
  background: linear-gradient(180deg, var(--ox-300), var(--line-3));
}
.co-line { position: relative; }
.co-line::before {
  /* branch from the spine */
  content: ""; position: absolute; left: -19px; top: 9px; width: 15px; height: 1px; background: var(--c);
}
.co-line__name {
  display: flex; align-items: baseline; gap: 10px; margin-bottom: 10px;
  font: 500 var(--fs-mono)/1.2 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--fg);
}
.co-line__name span { color: var(--c); }
.co-line__track { position: relative; }
.co-line__stops { position: relative; display: flex; flex-wrap: wrap; row-gap: 14px; }
.co-line__stops li {
  position: relative; flex: 0 0 auto; min-width: 84px; padding: 18px 12px 0 0;
  font-size: 0.8125rem; line-height: 1.25; color: var(--fg-2);
}
.co-line__stops li::before {
  /* track segment to the next stop */
  content: ""; position: absolute; left: 0; right: 0; top: 5px; height: 2px; background: color-mix(in srgb, var(--c) 45%, transparent);
}
.co-line__stops li:last-child::before { right: auto; width: 12px; }
.co-line__stops li::after {
  content: ""; position: absolute; left: 0; top: 0; width: 12px; height: 12px; border-radius: 50%;
  background: var(--ink-2); box-shadow: inset 0 0 0 2px var(--c);
  transition: background-color var(--t-med), box-shadow var(--t-med), transform var(--t-med) var(--ease-spring);
}
.co-line__stops li:hover { color: var(--fg); }
.co-line__stops li:hover::after { background: var(--c); box-shadow: inset 0 0 0 2px var(--c), 0 0 14px var(--c); transform: scale(1.2); }
.co-line__pulse {
  position: absolute; left: 0; top: 2px; width: 46px; height: 8px; margin-left: -23px; pointer-events: none;
  background: radial-gradient(closest-side, rgba(233, 251, 255, 0.95), color-mix(in srgb, var(--c) 60%, transparent) 50%, transparent);
  animation: co-ride var(--ride, 5s) linear infinite; animation-delay: var(--ride-d, 0s);
  opacity: 0;
}
@keyframes co-ride { 0% { transform: translateX(-20px); opacity: 0; } 8% { opacity: 1; } 85% { opacity: 1; } 100% { transform: translateX(var(--ride-w, 300px)); opacity: 0; } }
@media (max-width: 599px) { .co-line__stops li { min-width: 0; flex-basis: 33.33%; } .co-line__pulse { display: none; } }

/* ---------------------------------------------------------------- 03 milestones */
.co-ms { position: relative; }
/* base (no JS, mobile): a vertical timeline */
.co-ms .co-ms__list { position: relative; display: grid; gap: var(--s-7); padding-left: 34px; }
.co-ms__list::before { content: ""; position: absolute; left: 7px; top: 8px; bottom: 8px; width: 1px; background: linear-gradient(180deg, var(--line-3), var(--line) 85%, transparent); }
.co-ms__item { position: relative; }
.co-ms__item::before {
  content: ""; position: absolute; left: -34px; top: 4px; width: 15px; height: 15px; border-radius: 50%;
  background: var(--ink-1); box-shadow: inset 0 0 0 1px var(--line-3), inset 0 0 0 4px var(--ink-1), inset 0 0 0 8px var(--c, var(--ox-300));
}
.co-ms__date { display: block; font: 500 var(--fs-mono)/1.4 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--accent-text); }
.co-ms__tag { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.co-ms__tag::before { content: ""; width: 6px; height: 6px; border-radius: 1px; background: var(--c, var(--ox-300)); }
.co-ms__title { margin-top: var(--s-3); font-size: var(--fs-h3); line-height: 1.14; letter-spacing: -0.02em; color: var(--fg); font-weight: 500; max-width: 22em; }
.co-ms__text { margin-top: var(--s-3); color: var(--fg-2); max-width: 40em; }
.co-ms__logos { display: flex; flex-wrap: wrap; gap: 10px; margin-top: var(--s-5); }
.co-ms__logos .co-logo { --lw: 132px; }
.co-ms__more { margin-top: var(--s-5); }
.co-ms__badge { margin-left: 10px; vertical-align: 2px; }

/* enhanced (JS, desktop): rail + tabs + one panel at a time */
.co-ms__rail { display: none; }
.co-ms.is-rail .co-ms__rail { display: block; position: relative; height: 196px; margin-bottom: var(--s-7); }
.co-ms.is-rail .co-ms__list { padding-left: 0; display: block; min-height: 300px; }
.co-ms.is-rail .co-ms__list::before { display: none; }
.co-ms.is-rail .co-ms__item::before { display: none; }
.co-ms.is-rail .co-ms__item {
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: var(--s-6) clamp(32px, 5vw, 96px); align-items: start;
}
.co-ms.is-rail .co-ms__item:focus-visible { outline-offset: 12px; }
.co-ms.is-rail .co-ms__item[hidden] { display: none !important; }
.co-ms.is-rail .co-ms__item.is-shown { animation: co-in 0.7s var(--ease-out) both; }
@keyframes co-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.co-ms.is-rail .co-ms__date { font-family: var(--font-sans); font-weight: 500; font-size: clamp(2.5rem, 1.6rem + 2.8vw, 4.5rem); line-height: 1; letter-spacing: -0.04em; text-transform: none; color: var(--fg); }
.co-ms.is-rail .co-ms__tag { margin-top: 14px; }
.co-ms.is-rail .co-ms__title { margin-top: 0; }
/* rail geometry: labels above (0-80), axis at 80, year band 88-104, labels below (128+) */
.co-ms__axis { position: absolute; left: 0; right: 0; top: 80px; height: 1px; background: var(--line-2); }
.co-ms__ticks {
  position: absolute; left: 0; right: 0; top: 76px; height: 9px; pointer-events: none;
  background-image: linear-gradient(90deg, var(--line-3) 1px, transparent 1px);
  background-size: calc(100% / var(--months, 25)) 100%;
  opacity: 0.55;
}
.co-ms__fill {
  position: absolute; left: 0; top: 79px; height: 3px; width: 100%; border-radius: 2px;
  background: var(--grad-mark-h); transform-origin: left center; transform: scaleX(var(--p, 0));
  box-shadow: 0 0 14px rgba(92, 225, 230, 0.35);
}
.co-ms__head {
  position: absolute; top: 80px; left: calc(var(--p, 0) * 100%); width: 11px; height: 11px; margin: -5.5px 0 0 -5.5px; border-radius: 50%;
  background: #e9fbff; box-shadow: 0 0 0 4px rgba(92, 225, 230, 0.2), 0 0 18px 4px rgba(92, 225, 230, 0.55);
}
.co-ms__year {
  position: absolute; top: 90px; left: var(--x); width: var(--w); height: 16px;
  display: flex; align-items: center; justify-content: center; border-left: 1px solid var(--line-2);
  font: 500 10px/1 var(--font-mono); letter-spacing: var(--track-mono); color: var(--fg-4);
}
.co-ms__year:first-of-type { border-left: 0; }
.co-ms__year::before, .co-ms__year::after { content: ""; flex: 1; height: 1px; margin: 0 10px; background: linear-gradient(90deg, transparent, var(--line)); }
.co-ms__year::after { background: linear-gradient(90deg, var(--line), transparent); }
.co-ms__tabs { position: absolute; inset: 0; }
.co-ms__tab {
  position: absolute; left: var(--x); top: 0; height: 80px; width: 150px; margin-left: -8px;
  display: flex; flex-direction: column; justify-content: flex-start; align-items: flex-start; gap: 4px;
  padding: 0 0 26px; border: 0; background: none; cursor: pointer; text-align: left; color: var(--fg-3);
}
.co-ms__tab--low { top: 80px; height: auto; padding: 46px 0 0; }
.co-ms__tab-t { font: 500 10.5px/1.2 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); transition: color var(--t-fast); }
.co-ms__tab-n { font-size: 0.875rem; line-height: 1.25; color: var(--fg-2); transition: color var(--t-fast); max-width: 124px; }
.co-ms__tab::after {
  /* the node on the axis */
  content: ""; position: absolute; left: 2px; bottom: -6.5px; width: 13px; height: 13px; border-radius: 50%;
  background: var(--ink-0); box-shadow: inset 0 0 0 1px var(--line-3);
  transition: background-color var(--t-med), box-shadow var(--t-med), transform var(--t-med) var(--ease-spring);
}
.co-ms__tab--low::after { bottom: auto; top: -6.5px; }
.co-ms__tab::before {
  /* stem from label to node */
  content: ""; position: absolute; left: 8px; bottom: 8px; width: 1px; height: 14px; background: var(--line-2);
}
.co-ms__tab--low::before { bottom: auto; top: 8px; height: 32px; }
.co-ms__tab.is-passed::after { background: var(--ink-0); box-shadow: inset 0 0 0 1px var(--c), inset 0 0 0 4px var(--ink-0), inset 0 0 0 7px var(--c); }
.co-ms__tab[aria-selected="true"]::after { background: var(--c); box-shadow: 0 0 0 4px color-mix(in srgb, var(--c) 25%, transparent), 0 0 18px var(--c); transform: scale(1.15); }
.co-ms__tab[aria-selected="true"] .co-ms__tab-t { color: var(--c); }
.co-ms__tab[aria-selected="true"] .co-ms__tab-n, .co-ms__tab:hover .co-ms__tab-n { color: var(--fg); }
.co-ms__tab:hover::after { transform: scale(1.15); }
.co-ms__tab:focus-visible { outline-offset: 6px; }
.co-ms__tab--end { margin-left: -142px; align-items: flex-end; text-align: right; }
.co-ms__tab--end::after { left: auto; right: 2px; }
.co-ms__tab--end::before { left: auto; right: 8px; }
.co-ms__tab--end .co-ms__tab-n { text-align: right; }
.co-ms__nav { display: flex; gap: 8px; margin-top: var(--s-6); }
.co-ms__nav button {
  width: 44px; height: 44px; display: grid; place-items: center; border-radius: 50%;
  border: 1px solid var(--line-2); background: transparent; color: var(--fg); cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}
.co-ms__nav button:hover { border-color: var(--accent-text); background: rgba(123, 126, 242, 0.1); }
.co-ms__nav button[disabled] { opacity: 0.35; pointer-events: none; }
.co-ms__nav svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.co-ms__count { align-self: center; margin-left: 10px; font: 500 10.5px/1 var(--font-mono); letter-spacing: var(--track-mono); color: var(--fg-3); }

/* ---------------------------------------------------------------- 04 GS Group */
.co-gs {
  position: relative; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(32px, 5vw, 96px); align-items: center;
}
@media (max-width: 899px) { .co-gs { grid-template-columns: minmax(0, 1fr); } }
.co-gs__plate {
  position: relative; display: grid; place-items: center; aspect-ratio: 5 / 4;
  border-radius: var(--r-4); border: 1px solid var(--line-2); overflow: hidden;
  background:
    radial-gradient(80% 80% at 50% 40%, rgba(164, 194, 172, 0.10), transparent 60%),
    var(--ink-2);
}
.co-gs__plate .bg-grid { opacity: 0.8; }
.co-gs__plate .co-logo { --lw: min(62%, 300px); --lr: 4 / 3; --iw: 72%; --ih: 72%; position: relative; z-index: 1; }
.co-gs__orbit { position: absolute; inset: 9%; border-radius: 50%; border: 1px dashed var(--line-2); animation: ox-spin 60s linear infinite; }
.co-gs__orbit::after { content: ""; position: absolute; left: 50%; top: -4px; width: 7px; height: 7px; margin-left: -3.5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.co-gs__orbit--2 { inset: 19%; animation-duration: 38s; animation-direction: reverse; }
.co-gs__orbit--2::after { background: var(--ox-300); box-shadow: 0 0 12px var(--ox-300); }
.co-gs__cap { position: absolute; left: 16px; bottom: 14px; z-index: 1; font: 500 10px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-4); }
.co-gs__body > * + * { margin-top: var(--s-4); }
.co-gs__body .spec { margin-top: var(--s-6); }

/* ---------------------------------------------------------------- 05 values (paper) */
.co-values { border-top: 1px solid var(--line-2); counter-reset: none; }
.co-value {
  position: relative; display: grid; grid-template-columns: 48px minmax(0, 7fr) minmax(0, 5fr); gap: var(--s-4) clamp(20px, 3vw, 48px); align-items: baseline;
  padding: clamp(22px, 2.4vw, 34px) 4px; border-bottom: 1px solid var(--line-2);
  transition: background-color var(--t-med) var(--ease-out);
}
.co-value::before {
  content: ""; position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%;
  background: var(--grad-mark-h); transform: scaleX(0); transform-origin: left; transition: transform var(--t-slow) var(--ease-out);
}
.co-value:hover::before { transform: scaleX(1); }
.co-value__num { font: 500 var(--fs-mono)/1 var(--font-mono); letter-spacing: var(--track-mono); color: var(--accent-text); }
.co-value__pair { margin: 0; font-size: clamp(1.75rem, 1.2rem + 2.2vw, 3.25rem); line-height: 1.04; letter-spacing: -0.03em; color: var(--fg); font-weight: 500; }
.co-value__over { display: inline-block; margin: 0 0.18em; font-size: 0.42em; vertical-align: 0.5em; font-family: var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); font-weight: 500; }
.co-value__b { position: relative; display: inline-block; color: var(--fg-4); font-weight: 400; }
.co-value__b::after {
  content: ""; position: absolute; left: -2%; right: -2%; top: 55%; height: 0.07em; min-height: 2px; border-radius: 2px;
  background: var(--grad-mark-h); transform: scaleX(0); transform-origin: left;
  transition: transform 0.9s var(--ease-out) 0.25s;
}
.co-values.is-in .co-value__b::after, html:not(.js) .co-value__b::after, .ox-reduced .co-value__b::after { transform: scaleX(1); }
.co-value:nth-child(2) .co-value__b::after { transition-delay: 0.4s; }
.co-value:nth-child(3) .co-value__b::after { transition-delay: 0.55s; }
.co-value:nth-child(4) .co-value__b::after { transition-delay: 0.7s; }
.co-value__text { color: var(--fg-2); font-size: 1rem; max-width: 30em; }
@media (max-width: 899px) {
  .co-value { grid-template-columns: 44px minmax(0, 1fr); }
  .co-value__text { grid-column: 2; }
}

/* =====================================================================================
   WHY OPTRONIX
   ===================================================================================== */

/* hero: the four reasons as a drawing schedule */
.co-index {
  position: relative; border: 1px solid var(--line-2); border-radius: var(--r-3); overflow: hidden;
  background: color-mix(in srgb, var(--ink-2) 80%, transparent);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.co-index__head {
  display: flex; justify-content: space-between; gap: var(--s-4); padding: 12px 18px;
  border-bottom: 1px solid var(--line-2);
  font: 500 10px/1.3 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg-4);
}
.co-index__list > li + li { border-top: 1px solid var(--line); }
.co-index a {
  position: relative; display: grid; grid-template-columns: 48px minmax(0, 1fr) 28px; gap: 12px; align-items: center;
  padding: 20px 18px; text-decoration: none; color: var(--fg);
  transition: background-color var(--t-fast);
}
.co-index a::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--grad-mark);
  transform: scaleY(0); transition: transform var(--t-med) var(--ease-out);
}
.co-index a:hover { background: rgba(255, 255, 255, 0.03); }
.co-index a:hover::before, .co-index a:focus-visible::before { transform: scaleY(1); }
.co-index__n { font: 500 var(--fs-mono)/1 var(--font-mono); letter-spacing: var(--track-mono); color: var(--accent-text); }
.co-index__t { font-size: 1.0625rem; font-weight: 500; line-height: 1.3; letter-spacing: -0.01em; }
.co-index__t small { display: block; margin-top: 3px; font-size: 0.8125rem; font-weight: 400; color: var(--fg-3); letter-spacing: 0; }
.co-index svg { width: 16px; height: 16px; justify-self: end; fill: none; stroke: var(--fg-3); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transform: rotate(90deg); transition: transform var(--t-med) var(--ease-out), stroke var(--t-fast); }
.co-index a:hover svg { stroke: var(--fg); transform: rotate(90deg) translateX(3px); }

/* reason blocks share a header pattern */
.co-reason__num {
  display: inline-flex; align-items: center; justify-content: center; width: 54px; height: 54px; margin-bottom: var(--s-5);
  border: 1px solid var(--line-2); border-radius: 50%;
  font: 500 0.875rem/1 var(--font-mono); letter-spacing: 0.06em; color: var(--fg);
  background: radial-gradient(circle at 30% 30%, rgba(140, 82, 255, 0.25), transparent 70%);
}

/* ---------------------------------------------------------------- 01 scatter to line */
.co-sc { position: relative; }
.co-sc__pin { position: relative; }
.co-sc__frame {
  position: relative; height: clamp(420px, 54vh, 540px);
  border: 1px solid var(--line-2); border-radius: var(--r-4); overflow: hidden;
  background:
    radial-gradient(70% 90% at 50% 100%, rgba(140, 82, 255, 0.14), transparent 60%),
    var(--ink-0);
}
.co-sc__frame .bg-grid { opacity: 0.9; }
.co-sc__stage { position: absolute; inset: 64px 28px 76px; }
.co-sc__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.co-sc__svg .hand { fill: none; stroke: var(--warn); stroke-width: 1.2; stroke-dasharray: 3 5; opacity: 0.75; vector-effect: non-scaling-stroke; }
.co-sc__svg .hand-x { fill: var(--ink-0); stroke: var(--warn); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.co-sc__svg .one { fill: none; stroke: url(#co-sc-grad); stroke-width: 2; vector-effect: non-scaling-stroke; }
.co-sc__svg .one-node { fill: var(--ink-0); stroke: var(--c); stroke-width: 2; vector-effect: non-scaling-stroke; }
.co-sc__svg .one-pulse { fill: none; stroke: #e9fbff; stroke-width: 3; stroke-linecap: round; stroke-dasharray: 6 100; filter: drop-shadow(0 0 6px var(--cyan)); vector-effect: non-scaling-stroke; }
.co-sc__card {
  position: absolute; left: 0; top: 0; width: var(--cw, 190px);
  padding: 14px 14px 13px; border-radius: var(--r-2);
  border: 1px solid var(--line-2); background: var(--ink-2);
  box-shadow: 0 20px 40px -26px rgba(0, 0, 0, 0.9);
  will-change: transform;
}
.co-sc__card::before {
  content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 3px; border-radius: var(--r-2) var(--r-2) 0 0;
  background: var(--c); opacity: var(--one, 0);
}
.co-sc__k { display: grid; justify-items: start; gap: 8px; font: 500 9.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-4); }
.co-sc__k .b { color: var(--warn); opacity: calc(1 - var(--one, 0) * 2); }
.co-sc__k .a { color: var(--c); opacity: calc(var(--one, 0) * 2 - 1); }
.co-sc__k > span { grid-area: 1 / 1; }
.co-sc__t { position: relative; margin-top: 8px; height: 2.6em; font-size: 0.9375rem; line-height: 1.3; font-weight: 500; color: var(--fg); }
.co-sc__t > span { position: absolute; inset: 0; }
.co-sc__t .b { opacity: calc(1 - var(--one, 0) * 2); color: var(--fg-2); }
.co-sc__t .a { opacity: calc(var(--one, 0) * 2 - 1); }
.co-sc__cap {
  position: absolute; left: 24px; right: 24px; top: 20px; display: flex; justify-content: space-between; gap: 16px; align-items: center;
  font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase;
}
.co-sc__state { position: relative; display: grid; }
.co-sc__state > span { grid-area: 1 / 1; display: inline-flex; align-items: center; gap: 10px; }
.co-sc__state .b { color: var(--warn); opacity: calc(1 - var(--one, 0) * 2); }
.co-sc__state .a { color: var(--cyan); opacity: calc(var(--one, 0) * 2 - 1); }
.co-sc__state i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 10px currentColor; }
.co-sc__toggle { display: none; position: absolute; right: 18px; top: 12px; z-index: 3; }
.co-sc.is-manual .co-sc__toggle { display: inline-flex; }
@media (max-width: 699px) { .co-sc__toggle { top: auto; right: auto; left: 50%; bottom: 16px; translate: -50% 0; } }
.co-sc__brace {
  position: absolute; left: 28px; right: 28px; bottom: 26px; height: 30px; opacity: var(--one, 0);
  display: flex; align-items: flex-end; justify-content: center;
}
.co-sc__brace::before {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 12px;
  border: 1px solid var(--line-3); border-top: 0; border-radius: 0 0 6px 6px;
}
.co-sc__brace span {
  position: relative; padding: 4px 12px; border-radius: var(--r-pill); background: var(--ink-0); border: 1px solid rgba(161, 163, 255, 0.4);
  font: 500 10.5px/1.2 var(--font-mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--fg);
}
.co-sc__note { margin-top: var(--s-5); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-5) var(--s-7); }
.co-sc__note p { color: var(--fg-2); font-size: var(--fs-small); }
.co-sc__note b { display: block; margin-bottom: 4px; font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; }
.co-sc__note .nb { color: var(--warn); }
.co-sc__note .na { color: var(--cyan); }
@media (max-width: 1279px) { .co-sc__t { font-size: 0.875rem; } }
@media (max-width: 1099px) { .co-sc__frame { height: 640px; } }
@media (max-width: 699px) {
  .co-sc__frame { height: 640px; }
  .co-sc__stage { inset: 70px 16px 70px; }
  .co-sc__cap { left: 16px; right: 16px; top: 16px; flex-wrap: wrap; }
  .co-sc__brace { display: none; }
  .co-sc__note { grid-template-columns: minmax(0, 1fr); }
}
.co-sc.is-narrow .co-sc__card { padding: 11px 14px 10px; }
.co-sc.is-narrow .co-sc__t { height: 1.35em; margin-top: 5px; }

/* before ox/company.js lays the cards out (and without JS): a plain row of the six stages */
.co-sc:not(.is-ready) { --one: 1; }
.co-sc:not(.is-ready) .co-sc__stage { display: flex; flex-wrap: wrap; justify-content: center; align-content: center; gap: 12px; }
.co-sc:not(.is-ready) .co-sc__card { position: relative; --one: 1; width: 176px; }
.co-sc:not(.is-ready) .co-sc__svg { display: none; }
@media (max-width: 699px) { .co-sc:not(.is-ready) .co-sc__card { width: 80%; } }

/* ---------------------------------------------------------------- 02 reach (paper) */
.co-reach { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 6vw, 112px); align-items: start; }
@media (max-width: 999px) { .co-reach { grid-template-columns: minmax(0, 1fr); } }
.co-reach__figs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s-4); }
.co-reach__fig { padding: 26px 24px; border-radius: var(--r-3); background: var(--ink-2); border: 1px solid var(--line); box-shadow: var(--shadow-1); container-type: inline-size; }
.co-reach__fig b { display: block; font: 500 min(clamp(3.5rem, 2.6rem + 3vw, 6rem), 42cqi)/1 var(--font-mono); letter-spacing: -0.05em; color: var(--fg); }   /* 42cqi: four characters always fit the card */
.co-reach__fig > span { display: block; margin-top: 10px; font-size: var(--fs-small); color: var(--fg-2); }
.co-reach__grp + .co-reach__grp { margin-top: var(--s-6); }
.co-reach__h { margin-bottom: var(--s-3); font: 500 10.5px/1.3 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--fg-3); }
.co-reach .chips .chip { min-height: 40px; padding: 8px 16px; font-size: 0.9375rem; }
.co-reach__work { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line-2); }
.co-reach__work li { display: flex; gap: 12px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--fg); font-weight: 500; }
.co-reach__work li:nth-child(odd) { padding-right: 16px; }
.co-reach__work li span { font: 500 10.5px/1 var(--font-mono); color: var(--accent-text); letter-spacing: 0.1em; }
@media (max-width: 599px) { .co-reach__work { grid-template-columns: minmax(0, 1fr); } }

/* ---------------------------------------------------------------- 03 scale slider */
.co-scale {
  display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: 0;
  border: 1px solid var(--line-2); border-radius: var(--r-4); overflow: hidden; background: var(--ink-2);
}
@media (max-width: 999px) { .co-scale { grid-template-columns: minmax(0, 1fr); } }
.co-scale__view { position: relative; min-height: 460px; background: var(--ink-0); border-right: 1px solid var(--line-2); }
@media (max-width: 999px) { .co-scale__view { border-right: 0; border-bottom: 1px solid var(--line-2); min-height: 0; aspect-ratio: 4 / 3; } }
.co-scale__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.co-scale__hud {
  position: absolute; left: 18px; top: 16px; right: 18px; display: flex; justify-content: space-between; gap: 12px; pointer-events: none;
  font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3);
}
.co-scale__hud b { color: var(--fg); font-weight: 500; }
@media (max-width: 599px) { .co-scale__hud [data-co-scale-ref] { display: none; } }
.co-scale__ctrl { padding: 20px 22px 22px; border-top: 1px solid var(--line-2); background: var(--ink-2); }
.co-scale__view + .co-scale__side .co-scale__ctrl { border-top: 0; }
.co-scale__side { display: flex; flex-direction: column; }
.co-scale__label { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.co-scale__label label { font: 500 10.5px/1.3 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--fg-3); }
.co-scale__label output { font-size: 1.25rem; font-weight: 500; color: var(--fg); letter-spacing: -0.01em; }
.co-scale__range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 28px; margin: 0; background: transparent; cursor: pointer;
  --p: 0%;
}
.co-scale__range::-webkit-slider-runnable-track {
  height: 4px; border-radius: 4px;
  background: linear-gradient(90deg, var(--violet), var(--blue) 50%, var(--cyan)) 0 0 / var(--p) 100% no-repeat, var(--line-2);
}
.co-scale__range::-moz-range-track { height: 4px; border-radius: 4px; background: var(--line-2); }
.co-scale__range::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--grad-mark-h); }
.co-scale__range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 22px; height: 22px; margin-top: -9px; border-radius: 50%;
  background: #fff; border: 0; box-shadow: 0 0 0 5px rgba(123, 126, 242, 0.3), 0 4px 14px rgba(0, 0, 0, 0.5);
  transition: box-shadow var(--t-fast);
}
.co-scale__range::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 0 0 5px rgba(123, 126, 242, 0.3); }
.co-scale__range:focus-visible { outline: none; }
.co-scale__range:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 5px rgba(123, 126, 242, 0.55), 0 0 0 8px var(--focus); }
.co-scale__range:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 5px rgba(123, 126, 242, 0.55), 0 0 0 8px var(--focus); }
.co-scale__stops { display: flex; justify-content: space-between; gap: 4px; margin-top: 8px; }
.co-scale__stops button {
  flex: 1 1 0; min-width: 0; padding: 6px 0 0; border: 0; background: none; cursor: pointer; text-align: center;
  font: 500 9.5px/1.3 var(--font-mono); letter-spacing: 0.08em; text-transform: uppercase; color: var(--fg-4);
  transition: color var(--t-fast);
}
@media (max-width: 599px) { .co-scale__stops button { flex: 0 1 auto; white-space: nowrap; letter-spacing: 0.04em; } }
.co-scale__stops button:first-child { text-align: left; }
.co-scale__stops button:last-child { text-align: right; }
.co-scale__stops button:hover, .co-scale__stops button.is-on { color: var(--fg); }
.co-scale__same { flex: 1; padding: 24px 22px; }
.co-scale__same h3 { font-size: var(--fs-h4); font-weight: 500; color: var(--fg); }
.co-scale__same > p { margin-top: 6px; font-size: var(--fs-small); color: var(--fg-3); }
.co-scale__list { margin-top: var(--s-5); display: grid; gap: 0; border-top: 1px solid var(--line); }
.co-scale__list li {
  position: relative; display: flex; gap: 12px; align-items: flex-start; padding: 12px 0; border-bottom: 1px solid var(--line);
  font-size: 0.9375rem; line-height: 1.4; color: var(--fg-2);
}
.co-scale__list li::before {
  content: ""; flex: none; width: 18px; height: 18px; margin-top: 1px; border-radius: 50%;
  background: rgba(92, 225, 230, 0.12) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235ce1e6' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4 8-9'/%3E%3C/svg%3E") center / 10px no-repeat;
  box-shadow: inset 0 0 0 1px rgba(92, 225, 230, 0.45);
}
.co-scale__list li.is-ping::before { animation: co-ping 0.7s var(--ease-out); }
@keyframes co-ping { 0% { box-shadow: inset 0 0 0 1px rgba(92, 225, 230, 0.45), 0 0 0 0 rgba(92, 225, 230, 0.6); } 100% { box-shadow: inset 0 0 0 1px rgba(92, 225, 230, 0.45), 0 0 0 10px rgba(92, 225, 230, 0); } }
.co-scale__list b { color: var(--fg); font-weight: 500; }
html.no-js .co-scale { grid-template-columns: minmax(0, 1fr); }
html.no-js .co-scale__view, html.no-js .co-scale__ctrl { display: none; }
html.no-js .co-js-only { display: none; }

/* ---------------------------------------------------------------- 04 engineers: plan vs hall */
.co-eng {
  display: grid; grid-template-columns: minmax(0, 1fr) 64px minmax(0, 1fr); align-items: stretch;
  border: 1px solid var(--line-2); border-radius: var(--r-4); overflow: hidden; background: var(--ink-2);
}
.co-eng__pane { position: relative; padding: 22px 24px 24px; min-width: 0; }
@media (max-width: 599px) { .co-eng__pane { padding: 18px 14px 18px; } }
.co-eng__pane--hall { background: var(--ink-0); }
.co-eng__h { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 14px; font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.co-eng__h b { color: var(--fg); font-weight: 500; }
.co-eng__mid { position: relative; display: grid; place-items: center; border-inline: 1px solid var(--line); }
.co-eng__mid svg { width: 28px; height: 28px; fill: none; stroke: var(--accent-text); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.co-eng svg.co-eng__art { width: 100%; height: auto; overflow: visible; }
.co-eng__art .ln { fill: none; stroke: var(--line-3); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-eng__art .ln2 { fill: none; stroke: var(--ox-300); stroke-width: 1.1; vector-effect: non-scaling-stroke; }
.co-eng__art .bar { fill: rgba(123, 126, 242, 0.32); stroke: var(--ox-400); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-eng__art .bar--b { fill: rgba(92, 225, 230, 0.2); stroke: var(--cyan); }
.co-eng__art .gridl { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-eng__art text { fill: var(--fg-3); font: 500 9.5px var(--font-mono); letter-spacing: 0.08em; }
.co-eng__art .tx-hi { fill: var(--fg); }
.co-eng__art .led { fill: var(--cyan); }
.co-eng__art .led--v { fill: var(--violet); }
.co-eng__art .cab { fill: none; stroke: var(--cyan); stroke-width: 1.3; vector-effect: non-scaling-stroke; }
.co-eng__art .cab--v { stroke: var(--ox-300); }
.co-eng__art .feed-a { fill: none; stroke: #f5b84a; stroke-width: 1.4; vector-effect: non-scaling-stroke; }
.co-eng__art .feed-b { fill: none; stroke: #6fa8f0; stroke-width: 1.4; vector-effect: non-scaling-stroke; }
.co-eng__art .air { fill: none; stroke: var(--cyan); stroke-width: 1; stroke-dasharray: 3 4; opacity: 0.7; vector-effect: non-scaling-stroke; }
.co-eng__art .air--hot { stroke: #f2647b; }
.co-eng__art .call { fill: none; stroke: var(--line-3); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-eng__art .callpt { fill: var(--ink-0); stroke: var(--fg-2); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-eng__art .flow { animation: co-dash 1.6s linear infinite; }
@keyframes co-dash { to { stroke-dashoffset: -14; } }
.co-eng__keys { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.co-eng__pane--hall svg > * { transition: opacity var(--t-med), filter var(--t-med); }
.co-eng.has-hi .co-eng__pane--hall svg > :not(.is-hi):not(title):not(.co-eng__pts):not(.ln2) { opacity: 0.2; }
.co-eng .co-eng__pane--hall .is-hi { filter: drop-shadow(0 0 5px rgba(92, 225, 230, 0.55)); }
.co-eng.has-hi .co-eng__pts circle { stroke: var(--line-3); }
.co-eng__keys .chip { min-height: 30px; padding: 4px 12px; font-size: 0.8125rem; }
@media (max-width: 899px) {
  .co-eng { grid-template-columns: minmax(0, 1fr); }
  .co-eng__art text { font-size: 11px; }
  .co-eng__art .co-eng__pts text { font-size: 9.5px; }
  .co-eng__mid { height: 52px; border-inline: 0; border-block: 1px solid var(--line); }
  .co-eng__mid svg { transform: rotate(90deg); }
}

/* =====================================================================================
   PARTNERS
   ===================================================================================== */

/* ---------------------------------------------------------------- hero: constellation */
.co-pc { position: relative; width: 100%; height: 100%; aspect-ratio: 1 / 1; max-height: 560px; margin-inline: auto; }
.co-hero .page-hero__visual.co-pcwrap { --ratio: 1 / 1; }
.co-pc__svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.co-pc__svg .orb { fill: none; stroke: var(--line-2); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-pc__svg .orb--dash { stroke-dasharray: 2 6; }
.co-pc__svg .orb-spin { transform-origin: 50px 50px; animation: ox-spin 90s linear infinite; }
.co-pc__svg .orb-spin--r { animation-duration: 140s; animation-direction: reverse; }
.co-pc__svg .tickm { stroke: var(--line-3); stroke-width: 1; vector-effect: non-scaling-stroke; }
.co-pc__svg .lk { fill: none; stroke: color-mix(in srgb, var(--c) 45%, transparent); stroke-width: 1; vector-effect: non-scaling-stroke; transition: stroke var(--t-med), stroke-width var(--t-med), opacity var(--t-med); }
.co-pc__svg .lk-p {
  fill: none; stroke: var(--c); stroke-width: 2.2; stroke-linecap: round; stroke-dasharray: 7 100; stroke-dashoffset: 107;
  vector-effect: non-scaling-stroke; filter: drop-shadow(0 0 3px var(--c));
  animation: ox-lightpath var(--lp-dur, 3.6s) linear infinite; animation-delay: var(--lp-delay, 0s);
}
.co-pc.is-active .co-pc__svg [data-k] .lk { opacity: 0.35; }
.co-pc.is-active .co-pc__svg [data-k].is-on .lk { opacity: 1; stroke: var(--c); stroke-width: 1.8; }
.co-pc.is-active .co-pc__svg [data-k] .lk-p { opacity: 0.25; }
.co-pc.is-active .co-pc__svg [data-k].is-on .lk-p { opacity: 1; --lp-dur: 1.4s; }
.co-pc__core {
  position: absolute; left: 50%; top: 50%; width: 21%; aspect-ratio: 1; translate: -50% -50%;
  display: grid; place-items: center; border-radius: 50%;
  background: radial-gradient(circle, #151530 0%, var(--ink-0) 70%);
  box-shadow: 0 0 0 1px rgba(161, 163, 255, 0.35), 0 0 0 10px rgba(123, 126, 242, 0.06), 0 0 60px 6px rgba(140, 82, 255, 0.35);
}
.co-pc__core img { width: 64%; height: auto; }
.co-pc__core::after {
  content: ""; position: absolute; inset: -14px; border-radius: 50%; border: 1px solid rgba(92, 225, 230, 0.35);
  animation: co-halo 3.2s var(--ease-out) infinite;
}
@keyframes co-halo { 0% { transform: scale(0.85); opacity: 0.9; } 100% { transform: scale(1.35); opacity: 0; } }
.co-pc__node {
  position: absolute; left: var(--x); top: var(--y); width: 25%; translate: -50% -50%;
  display: flex; flex-direction: column; align-items: center; gap: 7px; text-decoration: none;
  transition: transform var(--t-med) var(--ease-out), opacity var(--t-med);
}
.co-pc__node .co-logo { --lw: 100%; --lr: 5 / 2; --iw: 78%; --ih: 60%; transition: box-shadow var(--t-med), transform var(--t-med) var(--ease-out), opacity var(--t-med); }
.co-pc__role {
  font: 500 9.5px/1.2 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); white-space: nowrap;
  display: inline-flex; align-items: center; gap: 6px; transition: color var(--t-fast);
}
.co-pc__role::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--c); box-shadow: 0 0 6px var(--c); }
.co-pc__node:hover .co-logo, .co-pc__node:focus-visible .co-logo, .co-pc__node.is-on .co-logo {
  transform: translateY(-3px); box-shadow: 0 0 0 2px var(--c), 0 0 26px -2px var(--c), 0 18px 34px -16px rgba(0, 0, 0, 0.8);
}
.co-pc__node:hover .co-pc__role, .co-pc__node.is-on .co-pc__role { color: var(--fg); }
.co-pc.is-active .co-pc__node:not(.is-on) .co-pc__role { opacity: 0.6; }
.co-pc.is-active .co-pc__node:not(.is-on) .co-logo { opacity: 0.86; }
.co-pc__node:focus-visible { outline: none; }
.co-pc__cap {
  position: absolute; left: 50%; bottom: -8px; translate: -50% 100%; width: min(100%, 420px); text-align: center;
  font-size: 0.875rem; line-height: 1.45; color: var(--fg-2); min-height: 2.9em;
}
.co-pc__cap b { color: var(--fg); font-weight: 500; }
@media (max-width: 899px) {
  .co-pcwrap { margin-bottom: 64px; }
  .co-hero .page-hero__visual { margin-inline: auto; }
}
@media (max-width: 599px) {
  .co-pc__role { font-size: 8.5px; letter-spacing: 0.06em; }
  .co-pc__node { width: 27%; gap: 5px; }
}

/* ---------------------------------------------------------------- group feature */
.co-group {
  position: relative; display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 0;
  border: 1px solid var(--line-2); border-radius: var(--r-4); overflow: hidden; background: var(--ink-2);
}
@media (max-width: 899px) { .co-group { grid-template-columns: minmax(0, 1fr); } }
.co-group__logo { position: relative; display: grid; place-items: center; padding: clamp(32px, 4vw, 56px); border-right: 1px solid var(--line-2); background: radial-gradient(90% 90% at 50% 50%, rgba(164, 194, 172, 0.1), transparent 70%), var(--ink-0); }
@media (max-width: 899px) { .co-group__logo { border-right: 0; border-bottom: 1px solid var(--line-2); } }
.co-group__logo .co-logo { --lw: min(100%, 260px); --lr: 4 / 3; --iw: 72%; --ih: 72%; }
.co-group__body { padding: clamp(28px, 3.4vw, 52px); }
.co-group__body > * + * { margin-top: var(--s-4); }
.co-group__body h3 { font-size: var(--fs-h3); line-height: 1.12; letter-spacing: -0.02em; }
.co-group__meta { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------------------------------------------------------------- partner cards (paper) */
.co-pt { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); }
@media (max-width: 1099px) { .co-pt { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 699px) { .co-pt { grid-template-columns: minmax(0, 1fr); } }
.co-pt .card { gap: var(--s-4); scroll-margin-top: calc(var(--header-h) + 24px); }
.co-pt .card:target { border-color: var(--accent-text); box-shadow: 0 0 0 3px rgba(123, 126, 242, 0.2), var(--shadow-1); }
.co-pt__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px var(--s-4); }
.co-pt .co-logo { --lw: 150px; box-shadow: 0 0 0 1px var(--line-2); }
.co-pt__stage { display: inline-flex; align-items: center; gap: 7px; font: 500 10px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); white-space: nowrap; }
.co-pt__stage::before { content: ""; flex: none; width: 7px; height: 7px; border-radius: 50%; background: var(--c); }
.co-pt h3 { font-size: clamp(1.375rem, 1.2rem + 0.5vw, 1.75rem); line-height: 1.15; letter-spacing: -0.02em; color: var(--fg); }
.co-pt__role { margin-top: -8px; font: 500 var(--fs-mono)/1.3 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--accent-text); }
.co-pt__figs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.co-pt__figs > div { padding: 14px 0; }
.co-pt__figs > div + div { padding-left: 16px; border-left: 1px solid var(--line); }
.co-pt__figs--one { grid-template-columns: minmax(0, 1fr); }
.co-pt__figs b { display: block; font: 500 clamp(1.75rem, 1.4rem + 1vw, 2.375rem)/1 var(--font-mono); letter-spacing: -0.04em; color: var(--fg); }
.co-pt__figs > div > span { display: block; margin-top: 6px; font-size: 0.8125rem; color: var(--fg-3); }
.co-pt__links { margin-top: auto; padding-top: var(--s-3); display: flex; flex-wrap: wrap; gap: 10px 22px; }
.co-pt__links .link-arrow { font-size: 0.9375rem; }
.co-pt .card--feature { grid-column: span 2; }
@media (max-width: 699px) { .co-pt .card--feature { grid-column: auto; } }
.co-pt .card--feature .co-logo { --lw: 190px; }
.co-pt__join { grid-column: span 2; justify-content: center; }
.co-pt__join h3 { max-width: 18em; }
@media (max-width: 1099px) { .co-pt__join { grid-column: auto; } }
.co-pt__join .co-pt__links { margin-top: var(--s-3); }
.co-pt__join .btn { white-space: normal; text-align: left; }
.co-pt__unit { font-size: 0.5em; margin-left: 4px; color: var(--accent-text); letter-spacing: 0; }

/* =====================================================================================
   NEWSROOM
   ===================================================================================== */

/* hero: the latest story */
.co-hero__side { min-width: 0; }
.co-feat {
  position: relative; display: flex; flex-direction: column; gap: var(--s-4);
  padding: clamp(22px, 2.4vw, 32px); border-radius: var(--r-4);
  background: linear-gradient(var(--ink-2), var(--ink-2)) padding-box, linear-gradient(140deg, rgba(140, 82, 255, 0.8), rgba(111, 168, 240, 0.5) 45%, rgba(92, 225, 230, 0.7)) border-box;
  border: 1px solid transparent;
  box-shadow: 0 40px 90px -50px rgba(140, 82, 255, 0.7);
  text-decoration: none; color: var(--fg-2);
  transition: transform var(--t-med) var(--ease-out);
}
.co-feat:hover { transform: translateY(-4px); }
.co-feat__top { display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); }
.co-feat__meta { display: flex; align-items: center; gap: 10px; font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.co-feat .co-logo { --lw: 170px; }
.co-feat__t { font-size: clamp(1.5rem, 1.2rem + 1vw, 2.125rem); line-height: 1.1; letter-spacing: -0.025em; color: var(--fg); font-weight: 500; }
.co-feat__q { padding-left: 16px; border-left: 2px solid transparent; border-image: var(--grad-mark) 1; font-size: 0.9375rem; color: var(--fg-2); }
.co-feat__q cite { display: block; margin-top: 8px; font: 500 10px/1.3 var(--font-mono); font-style: normal; letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.co-feat__go { display: inline-flex; align-items: center; gap: 8px; color: var(--fg); font-weight: 500; }
.co-feat__go svg { width: 16px; height: 16px; fill: none; stroke: var(--accent-text); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transform: rotate(90deg); transition: transform var(--t-med) var(--ease-out); }
.co-feat:hover .co-feat__go svg { transform: rotate(90deg) translateX(3px); }

/* ---------------------------------------------------------------- the timeline */
.co-news__bar {
  position: relative; z-index: 3; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-4);
  padding: 14px 0; margin-bottom: clamp(32px, 4vw, 56px); border-bottom: 1px solid var(--line-2);
}
.co-news__filters { display: flex; flex-wrap: wrap; gap: 8px; }
.co-news__filters .chip { min-height: 38px; }
.co-news__filters .chip small { font: 500 10px/1 var(--font-mono); color: var(--fg-4); margin-left: 2px; }
.co-news__filters .chip[aria-pressed="true"] small { color: var(--accent-text); }
.co-news__count { font: 500 10.5px/1.3 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--fg-3); }
.co-news { position: relative; }
.co-news__rail { position: absolute; left: calc(var(--yr-w) + 20px); top: 0; bottom: 0; width: 1px; background: var(--line-2); }
.co-news__rail i { position: absolute; inset: 0; background: linear-gradient(180deg, var(--violet), var(--blue) 50%, var(--cyan)); transform-origin: top; transform: scaleY(var(--p, 0)); }
.co-news__rail b {
  position: absolute; left: 50%; top: calc(var(--p, 0) * 100%); width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; border-radius: 50%;
  background: #e9fbff; box-shadow: 0 0 0 4px rgba(92, 225, 230, 0.18), 0 0 16px 4px rgba(92, 225, 230, 0.55);
  opacity: calc(var(--p, 0) * 40);
}
/* the head moves as a transform (no layout or layout shift per scroll frame); the rail is its size container */
@supports (height: 1cqh) {
  .co-news__rail { container-type: size; }
  .co-news__rail b { top: 0; translate: 0 calc(var(--p, 0) * 100cqh); }
}
.co-news { --yr-w: clamp(120px, 14vw, 200px); }
.co-year { position: relative; display: grid; grid-template-columns: var(--yr-w) minmax(0, 1fr); gap: 0 41px; }
.co-year + .co-year { margin-top: clamp(40px, 5vw, 80px); }
.co-year[hidden] { display: none; }
.co-year__mark { position: relative; }
.co-year__mark > span {
  position: sticky; top: calc(var(--header-h) + 32px); display: block; text-align: right;
  font: 500 clamp(2.5rem, 1.6rem + 2.6vw, 4.5rem)/1 var(--font-mono); letter-spacing: -0.05em; color: var(--fg);
}
.co-year__mark small { display: block; margin-top: 10px; font-size: 10.5px; letter-spacing: var(--track-mono); color: var(--fg-4); text-transform: uppercase; }
.co-year__list { display: grid; gap: var(--s-4); }
.co-story {
  position: relative; scroll-margin-top: calc(var(--header-h) + 24px);
  border: 1px solid var(--line-2); border-radius: var(--r-3); background: var(--ink-2);
  transition: border-color var(--t-med), opacity var(--t-med);
}
.co-story[hidden] { display: none; }
.co-story::before {
  /* node on the rail */
  content: ""; position: absolute; left: -27px; top: 30px; width: 13px; height: 13px; border-radius: 50%;
  background: var(--ink-1); box-shadow: inset 0 0 0 1px var(--line-3);
  transition: background-color var(--t-med), box-shadow var(--t-med);
}
.co-story.is-lit::before { background: var(--ink-1); box-shadow: inset 0 0 0 1px var(--c, var(--cyan)), inset 0 0 0 4px var(--ink-1), inset 0 0 0 7px var(--c, var(--cyan)); }
.co-story:target { border-color: var(--accent-text); }
.co-story.is-latest {
  border-color: transparent;
  background: linear-gradient(var(--ink-2), var(--ink-2)) padding-box, linear-gradient(140deg, rgba(140, 82, 255, 0.85), rgba(111, 168, 240, 0.4) 50%, rgba(92, 225, 230, 0.7)) border-box;
}
.co-story__in { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--s-4) var(--s-6); padding: clamp(22px, 2.2vw, 30px); padding-bottom: 6px; }
.co-story__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; margin-bottom: var(--s-3); }
.co-story__date { font: 500 var(--fs-mono)/1.3 var(--font-mono); letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--accent-text); }
.co-story__cat { display: inline-flex; align-items: center; gap: 7px; font: 500 10.5px/1.3 var(--font-mono); letter-spacing: 0.1em; text-transform: uppercase; color: var(--fg-3); }
.co-story__cat::before { content: ""; width: 6px; height: 6px; border-radius: 1px; background: var(--c, var(--ox-300)); }
.co-story__t { font-size: clamp(1.375rem, 1.15rem + 0.8vw, 1.875rem); line-height: 1.14; letter-spacing: -0.02em; color: var(--fg); font-weight: 500; max-width: 24em; }
.co-story__sum { margin-top: var(--s-3); color: var(--fg-2); max-width: 46em; }
.co-story .co-logo { --lw: 140px; }
.co-story .acc { border-bottom: 0; margin: 0 clamp(22px, 2.2vw, 30px); border-top: 1px solid var(--line); }
.co-story .acc > summary { padding: 14px 0 18px; font-size: 0.9375rem; color: var(--fg-2); }
.co-story .acc > summary:hover { color: var(--fg); }
.co-story .acc__icon { width: 30px; height: 30px; }
.co-story .acc__body > div { padding: 0 0 26px; }
.co-story .acc__body p + p { margin-top: var(--s-4); }
.co-story .acc__body blockquote {
  margin: var(--s-5) 0; padding: 4px 0 4px 22px; border-left: 2px solid transparent; border-image: var(--grad-mark) 1;
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem); line-height: 1.45; color: var(--fg); letter-spacing: -0.01em;
}
.co-story .acc__body blockquote cite { display: block; margin-top: 12px; font: 500 var(--fs-mono)/1.4 var(--font-mono); font-style: normal; letter-spacing: var(--track-mono); text-transform: uppercase; color: var(--fg-3); }
.co-story__links { display: flex; flex-wrap: wrap; gap: 10px 22px; margin-top: var(--s-5); }
.co-story.is-entering { animation: co-in 0.6s var(--ease-out) both; }
@media (max-width: 799px) {
  .co-news { --yr-w: 0px; }
  .co-news__rail { left: 6px; }
  .co-year { grid-template-columns: minmax(0, 1fr); gap: 0; padding-left: 30px; }
  .co-year__mark > span { position: static; text-align: left; font-size: 2.25rem; margin-bottom: var(--s-4); }
  .co-year__mark small { display: inline; margin-left: 10px; }
  .co-story::before { left: -30px; }
  .co-story__in { grid-template-columns: minmax(0, 1fr); }
  .co-story__in .co-logo { order: -1; --lw: 120px; }
}

/* ---------------------------------------------------------------- media enquiries */
.co-media { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); }
@media (max-width: 999px) { .co-media { grid-template-columns: minmax(0, 1fr); } }
.co-media .card__title a { text-decoration: none; }
.co-mail { font-size: clamp(1.125rem, 1rem + 0.5vw, 1.375rem); color: var(--fg); font-weight: 500; text-decoration: none; word-break: break-word;
  background-image: var(--grad-mark-h); background-repeat: no-repeat; background-size: 100% 1px; background-position: 0 100%; padding-bottom: 4px;
  transition: background-size var(--t-med) var(--ease-out); }
.co-mail:hover { background-size: 0 1px; background-position: 100% 100%; }

/* ---------------------------------------------------------------- reduced motion */
@media (prefers-reduced-motion: reduce) {
  .co-life::before, .co-line__pulse, .co-gs__orbit, .co-pc__core::after, .co-pc__svg .orb-spin, .co-eng__art .flow { animation: none !important; }
  .co-life::before, .co-line__pulse { display: none; }
  .co-pc__svg .lk-p { animation: none !important; stroke-dashoffset: 60; }
}