/* ==========================================================================
   TPC — Home page sections
   ========================================================================== */

/* ---- Hero --------------------------------------------------------------- */
.hero {
  position: relative; isolation: isolate;
  margin: var(--inset) var(--inset) 0;
  min-height: max(640px, min(100svh - 2 * var(--inset), 980px));
  display: grid; align-items: center;
  padding-block: 9rem 11rem;
  color: var(--t-on-dark);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { object-position: 70% 40%; }
.hero__shade {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(16,22,29,.92) 0%, rgba(16,22,29,.78) 38%, rgba(10,63,127,.25) 70%, rgba(10,63,127,.05) 100%),
    linear-gradient(0deg, rgba(16,22,29,.75) 0%, rgba(16,22,29,0) 35%);
}
.hero__content { position: relative; }
.hero__eyebrow { margin-bottom: 1.75rem; }
.hero__title { color: var(--white); max-width: 15ch; }
.hero__title .line { display: block; overflow: hidden; padding-bottom: .06em; margin-bottom: -.06em; }
.hero__title .line > span { display: inline-block; }
.hero__body { max-width: 50ch; margin-top: 2rem; font-size: var(--fs-lead); color: var(--t-on-dark); }
.hero__tagline {
  display: flex; align-items: center; gap: .75rem;
  margin-top: 1.25rem;
  font-family: var(--f-display); font-weight: 600; font-style: italic; color: var(--white);
}
.hero__tagline::before { content: ''; width: 18px; height: 2px; background: var(--red); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.5rem; }

.hero__signal { position: absolute; inset-inline: 0; bottom: clamp(4.5rem, 8vw, 6.5rem); color: rgba(255,255,255,.22); }

/* Entrance, after the loader lifts (html.is-loaded). */
.js .hero [data-hero] { opacity: 0; transform: translateY(26px); }
.js .hero__title [data-hero] { opacity: 1; transform: translateY(108%); }
.js.is-loaded .hero [data-hero] {
  opacity: 1; transform: none;
  transition: opacity .9s var(--ease-out), transform 1s var(--ease-out);
  transition-delay: calc(var(--h, 0) * 90ms);
}
.js .hero__media img { transform: scale(1.12); }
.js.is-loaded .hero__media img { transform: scale(1); transition: transform 2.8s var(--ease-out); }
.js .hero__signal { opacity: 0; }
.js.is-loaded .hero__signal { opacity: 1; transition: opacity 1.2s var(--ease) .6s; }

/* ---- Stats: a white card riding over the hero's edge --------------------- */
.stats { position: relative; z-index: 3; margin-top: calc(-1 * clamp(3.5rem, 6vw, 5rem)); }
.stats__grid {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr));
  width: calc(100% - 2 * var(--gutter)); max-width: var(--container); margin-inline: auto;
  background: var(--white); box-shadow: var(--shadow-card);
}
.stat { position: relative; padding: 1.75rem 1.25rem 1.6rem; }
.stat + .stat { border-inline-start: 1px solid var(--line); }
.stat__k { font-family: var(--f-label); font-size: .72rem; font-weight: 600; letter-spacing: .17em; color: var(--red); }
.stat__n {
  margin-top: .75rem;
  font-family: var(--f-display); font-weight: 700; line-height: 1;
  font-size: clamp(1.9rem, 2.8vw, 2.75rem); color: var(--navy);
  font-variant-numeric: tabular-nums;
}
.stat__n sup { font-size: .55em; color: var(--red); vertical-align: top; margin-inline-start: .08em; }
.stat__l {
  margin-top: .6rem;
  font-family: var(--f-label); font-size: .74rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase; color: var(--steel); line-height: 1.35;
}
@media (max-width: 960px) {
  .stats__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stat:nth-child(3n+1) { border-inline-start: 0; }
  .stat:nth-child(n+4) { border-top: 1px solid var(--line); }
}
@media (max-width: 520px) {
  .stats__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(n) { border-inline-start: 1px solid var(--line); border-top: 1px solid var(--line); }
  .stat:nth-child(odd) { border-inline-start: 0; }
  .stat:nth-child(-n+2) { border-top: 0; }
}

/* ---- Delivery model: one line through the whole lifecycle ------------------ */
.model { padding-block: var(--band-y); }
.track {
  --box: 64px;
  position: relative;
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 1.5rem;
}
/* The single interface: drawn from the client, through TPC, across every stage. */
.track::before {
  content: ''; position: absolute;
  top: calc(var(--box) / 2 - 1px); height: 2px;
  inset-inline: calc(100% / 12) calc(100% / 12);
  background: linear-gradient(90deg, var(--line) 0 18%, var(--navy) 18% 100%);
  transform-origin: left; transform: scaleX(0);
  transition: transform 1.6s var(--ease-in-out) .2s;
}
.track.is-visible::before { transform: scaleX(1); }
.track > li {
  position: relative; display: grid; justify-items: center; align-content: start; text-align: center;
  opacity: 0; transform: translateY(16px);
  transition: opacity .7s var(--ease-out), transform .7s var(--ease-out);
}
.track.is-visible > li { opacity: 1; transform: none; }
.track.is-visible > li:nth-child(1) { transition-delay: .1s; }
.track.is-visible > li:nth-child(2) { transition-delay: .35s; }
.track.is-visible > .track__stage { transition-delay: calc(.7s + var(--k) * .22s); }
html:not(.js) .track > li, html:not(.js) .track::before { opacity: 1; transform: none; }

.track__box {
  display: grid; place-items: center; width: var(--box); height: var(--box);
  background: var(--white); border: 1px solid var(--line); color: var(--navy);
}
.track__party--tpc .track__box { background: var(--navy); border-color: var(--navy); }
.track__party--tpc .track__box img { width: 34px; height: auto; }
.track__stage::before {
  content: ''; display: block; width: 14px; height: 14px; margin-top: calc(var(--box) / 2 - 7px);
  background: var(--white); border: 2px solid var(--navy); rotate: 45deg;
  transition: background var(--dur) var(--ease) calc(.9s + var(--k) * .22s);
}
.track.is-visible .track__stage::before { background: var(--red); border-color: var(--red); }
.track__t { margin-top: 1.25rem; font-family: var(--f-display); font-weight: 600; font-size: 1.05rem; line-height: 1.3; color: var(--navy); }
.track__stage .track__t { margin-top: calc(var(--box) / 2 + .6rem); }
.track__s { margin-top: .35rem; font-family: var(--f-label); font-size: .72rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--steel); }
.track__party--tpc .track__s { color: var(--red); }
.track__i { position: absolute; top: calc(var(--box) / 2 + 14px); font-family: var(--f-label); font-size: .7rem; font-weight: 600; letter-spacing: .17em; color: var(--steel); }
.track__d { margin-top: .5rem; font-size: var(--fs-sm); line-height: 1.5; color: var(--t-body); max-width: 22ch; }

@media (max-width: 1000px) {
  .track { grid-template-columns: 1fr; gap: 1.75rem; padding-inline-start: 0; }
  .track::before {
    inset-inline: calc(var(--box) / 2 - 1px) auto; top: calc(var(--box) / 2); bottom: 1rem; width: 2px; height: auto;
    background: linear-gradient(180deg, var(--line) 0 14%, var(--navy) 14% 100%);
    transform-origin: top; transform: scaleY(0);
  }
  .track.is-visible::before { transform: scaleY(1); }
  .track > li { grid-template-columns: var(--box) 1fr; justify-items: start; text-align: start; column-gap: 1.25rem; }
  .track > li > :not(.track__box) { grid-column: 2; }
  .track__party .track__box { grid-row: 1 / span 2; }
  .track__t, .track__stage .track__t { margin-top: 0; }
  .track__stage::before { grid-row: 1 / span 3; justify-self: center; margin-top: .4rem; }
  .track__i { position: static; grid-row: 1; }
  .track__party .track__t { align-self: end; }
}

/* ---- Capabilities: an index on the left, the group on the right ---------- */
.caps__ui { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
html:not(.js) .caps__ui { grid-template-columns: 1fr; }
.caps__list { display: none; border-top: 1px solid var(--line); position: sticky; top: 110px; }
.js .caps__list { display: grid; }
.caps__tab {
  position: relative;
  display: grid; grid-template-columns: 3rem 1fr; align-items: center; gap: .75rem;
  padding: 1.3rem 0; border: 0; border-bottom: 1px solid var(--line);
  background: none; text-align: start; cursor: pointer;
}
.caps__tab::after {
  content: ''; position: absolute; inset-inline-start: 0; bottom: -1px; width: 100%; height: 2px;
  background: var(--red); transform-origin: left; transform: scaleX(0);
  transition: transform .6s var(--ease-out);
}
.caps__tab[aria-pressed="true"]::after { transform: scaleX(1); }
.caps__n { font-family: var(--f-label); font-size: .8rem; font-weight: 600; letter-spacing: .17em; color: var(--steel); }
.caps__t {
  font-family: var(--f-display); font-weight: 600; font-size: clamp(1.05rem, 1.55vw, 1.4rem); line-height: 1.25;
  color: var(--navy); opacity: .72; transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease-out);
}
.caps__tab:hover .caps__t { opacity: .9; }
.caps__tab[aria-pressed="true"] .caps__t { opacity: 1; transform: translateX(6px); }
.caps__tab[aria-pressed="true"] .caps__n { color: var(--red); }

.caps__panels { display: grid; gap: 3rem; }
.cap { display: grid; gap: 1.75rem; }
.js .cap { display: none; }
.js .cap.is-active { display: grid; animation: cap-in .7s var(--ease-out); }
.cap__media { aspect-ratio: 16 / 10; }
.js .cap.is-active .cap__media { animation: cap-clip 1s var(--ease-in-out); }
.cap__body { position: relative; max-width: 38rem; }
.cap__n {
  font-family: var(--f-display); font-weight: 700; font-size: clamp(3.5rem, 6vw, 5.5rem); line-height: .9;
  color: transparent; -webkit-text-stroke: 1.5px #BCC8D6; margin-bottom: .75rem;
}
.cap h3 { margin-bottom: 1rem; }
.cap__d { color: var(--t-body); margin-bottom: 1.5rem; }
@keyframes cap-in { from { opacity: 0; transform: translateY(18px); } }
@keyframes cap-clip { from { clip-path: inset(0 0 0 100%); } to { clip-path: inset(0); } }

@media (max-width: 960px) {
  .caps__ui { grid-template-columns: 1fr; }
  .js .caps__list { display: none; }
  .js .cap { display: grid; }
  .caps__panels { gap: 3.5rem; }
}

/* ---- Projects ------------------------------------------------------------ */
.projects { padding-block: var(--band-y); }
.projects .filters { justify-self: end; justify-content: flex-end; }
.projects__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1.25rem, 2.5vw, 2rem); }
.project { position: relative; }
.project__media { aspect-ratio: 4 / 3; }
.project__media img { transition: transform 1.2s var(--ease-out); }
.project:hover .project__media img { transform: scale(1.06); }
.project__media::before {
  content: ''; position: absolute; inset-inline: 0; bottom: 0; height: 3px; z-index: 2;
  background: var(--red); transform: scaleX(0); transform-origin: left; transition: transform .6s var(--ease-out);
}
.project:hover .project__media::before { transform: scaleX(1); }
.project__meta {
  display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.1rem;
  font-family: var(--f-label); font-size: .74rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--steel);
}
.project__meta span:first-child { color: var(--red); }
.project__t { margin-top: .5rem; font-size: 1.2rem; line-height: 1.35; }
.project[hidden] { display: none; }
.projects__empty { padding: 3rem 0; color: var(--t-body); }
@media (max-width: 900px) { .projects__grid { grid-template-columns: 1fr 1fr; } .projects .filters { justify-self: start; } }
@media (max-width: 560px) { .projects__grid { grid-template-columns: 1fr; } }

/* ---- QHSE ------------------------------------------------------------------ */
.qhse { overflow: hidden; }
.qhse__signal { position: absolute; inset-inline: 0; top: clamp(1.5rem, 3vw, 2.5rem); color: rgba(255,255,255,.10); }
.qhse__signal .contour-band { height: 64px; }
.qhse__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); align-items: end; }
.qhse .lead { margin-top: 1.5rem; max-width: 40ch; }
.qhse__right { border-inline-start: 1px solid var(--line-dark); padding-inline-start: clamp(1.5rem, 4vw, 3.5rem); }
.qhse__mega { font-family: var(--f-display); font-weight: 700; line-height: .9; font-size: clamp(4.5rem, 10vw, 8.5rem); color: var(--white); letter-spacing: -.03em; }
.qhse__mega sup { font-size: .45em; color: var(--red); vertical-align: top; }
.qhse__label { margin-top: 1rem; font-family: var(--f-label); font-size: .8rem; font-weight: 600; letter-spacing: var(--ls-label); text-transform: uppercase; color: var(--t-on-dark-dim); }
.iso-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .75rem; margin-top: 2.5rem; }
.iso { padding: 1.1rem 1rem; border: 1px solid rgba(255,255,255,.18); background: rgba(255,255,255,.04); }
.iso small, .iso span { display: block; font-family: var(--f-label); font-size: .7rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--t-on-dark-dim); }
.iso b { display: block; margin: .3rem 0 .15rem; font-family: var(--f-display); font-size: 1.5rem; color: var(--white); }
@media (max-width: 860px) {
  .qhse__grid { grid-template-columns: 1fr; }
  .qhse__right { border-inline-start: 0; padding-inline-start: 0; }
}

/* ---- Resources ---------------------------------------------------------- */
.res__grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: center; }
.res__body { margin-top: 1.5rem; max-width: 46ch; color: var(--t-on-dark); }
.res .btn { margin-top: 2.25rem; }
.res__cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.res__signature { width: min(100%, 560px); margin: clamp(2rem, 4vw, 3rem) 0 0 auto; overflow: visible; }
.sig__trace { fill: none; stroke: var(--signal); stroke-width: 1.41; }
.sig__stems { fill: none; stroke: var(--red); stroke-width: 1.06; }
.sig__nodes circle { fill: var(--white); }
.js .res__signature .sig__trace { stroke-dasharray: 1; stroke-dashoffset: 1; }
.js .res__signature.is-visible .sig__trace { stroke-dashoffset: 0; transition: stroke-dashoffset 1.8s var(--ease-in-out) .2s; }
.js .res__signature .sig__nodes circle { transform-box: fill-box; transform-origin: center; transform: scale(0); }
.js .res__signature.is-visible .sig__nodes circle { transform: scale(1); transition: transform .5s cubic-bezier(.34,1.56,.64,1) 1.4s; }
@media (max-width: 860px) { .res__grid { grid-template-columns: minmax(0, 1fr); } }

/* ---- Where we work ---------------------------------------------------------- */
.reach { overflow: hidden; }
.reach__head { display: grid; justify-items: start; }
.reach__primary {
  font-family: var(--f-display); font-weight: 700; line-height: .85; letter-spacing: -.04em;
  font-size: clamp(5rem, 16vw, 13rem); color: var(--white); text-transform: uppercase;
}
.reach__note { margin-top: 1.5rem; color: var(--t-on-dark); }
.marquee { display: flex; margin-top: clamp(2.5rem, 5vw, 4rem); border-block: 1px solid var(--line-dark); overflow: hidden; }
.marquee__track { display: flex; flex: none; animation: marquee 38s linear infinite; }
.marquee__track li {
  display: flex; align-items: center; gap: 2rem; padding: 1.4rem 1rem 1.4rem 2rem; white-space: nowrap;
  font-family: var(--f-display); font-weight: 600; font-size: clamp(1.25rem, 2.4vw, 2rem); color: var(--t-on-dark);
}
.marquee__track li::before { content: ''; width: 8px; height: 8px; background: var(--red); rotate: 45deg; }
.marquee:hover .marquee__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-100%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; flex-wrap: wrap; }
  .marquee__track[aria-hidden] { display: none; }
}

/* ---- Closing CTA ---------------------------------------------------------------- */
.cta { padding-block: var(--band-y); text-align: center; }
.cta .eyebrow { justify-content: center; }
.cta h2 { max-width: 20ch; margin-inline: auto; }
.cta .lead { margin: 1.5rem auto 0; max-width: 44ch; }
.cta__actions { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 1.25rem 2rem; margin-top: 2.5rem; }