/* Research contract detail system: shared information architecture, distinct technical language. */
.contract-detail-pilot {
  --contract-gutter: clamp(30px, 6vw, 118px);
  background: var(--off-white);
  overflow-x: clip;
}

.contract-detail-pilot main {
  display: block;
  padding: 0;
}

.contract-pilot-hero {
  position: relative;
  min-height: clamp(540px, 62svh, 680px);
  padding: clamp(34px, 4vw, 58px) var(--contract-gutter) clamp(38px, 4.5vw, 66px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  isolation: isolate;
  background: #e8edeb;
  color: var(--deep-green);
}

.contract-pilot-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0 0 0 auto;
  width: min(52vw, 860px);
  background-image:
    linear-gradient(rgba(31, 58, 61, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 58, 61, 0.07) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to left, #000 34%, transparent 100%);
}

.contract-pilot-back {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: rgba(31, 58, 61, 0.68);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.contract-pilot-back::before {
  content: "←";
  color: var(--deep-green);
  font-size: 1rem;
}

.contract-pilot-back:hover,
.contract-pilot-back:focus-visible {
  color: var(--deep-green);
}

.contract-pilot-hero-grid {
  flex: 1;
  width: 100%;
  padding: clamp(52px, 6vh, 76px) 0 clamp(44px, 5vh, 66px);
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(220px, 0.65fr);
  align-items: center;
  gap: clamp(54px, 9vw, 170px);
}

.contract-pilot-hero-grid > *,
.contract-pilot-overview-inner > *,
.contract-pilot-copy {
  min-width: 0;
}

.contract-pilot-kicker {
  margin: 0 0 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--deep-green);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.contract-pilot-kicker span {
  padding-left: 14px;
  border-left: 1px solid rgba(31, 58, 61, 0.32);
  color: rgba(31, 58, 61, 0.5);
}

.contract-pilot-title {
  margin: 0;
  max-width: 950px;
  font-size: clamp(4.6rem, 8.3vw, 8.2rem);
  font-weight: 500;
  line-height: 0.86;
  letter-spacing: -0.06em;
  overflow-wrap: anywhere;
}

.contract-pilot-title.is-long {
  max-width: 1080px;
  font-size: clamp(3.4rem, 6vw, 6.4rem);
  line-height: 0.92;
  letter-spacing: -0.05em;
}

.contract-pilot-title.is-very-long {
  max-width: 1120px;
  font-size: clamp(2.8rem, 4.8vw, 5.25rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
}

.contract-pilot-lead {
  width: 100%;
  max-width: 820px;
  margin: 30px 0 0;
  color: rgba(31, 58, 61, 0.72);
  font-size: clamp(1.12rem, 1.55vw, 1.55rem);
  line-height: 1.42;
  overflow-wrap: anywhere;
}

.contract-pilot-visual {
  width: min(100%, 290px);
  aspect-ratio: 1;
  justify-self: end;
  display: grid;
  place-items: center;
  color: var(--deep-green);
}

.contract-pilot-visual svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.contract-pilot-visual .structure,
.contract-pilot-visual .signal {
  fill: none;
  stroke: currentColor;
  stroke-width: 2.5;
  vector-effect: non-scaling-stroke;
}

.contract-pilot-visual .signal {
  stroke: var(--accent);
  stroke-width: 3;
}

.contract-pilot-visual .node {
  fill: var(--accent);
}

.contract-pilot-meta {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  border-top: 1px solid rgba(31, 58, 61, 0.28);
}

.contract-pilot-fact {
  min-width: 0;
  padding: 22px clamp(20px, 2vw, 34px) 0 0;
}

.contract-pilot-fact + .contract-pilot-fact {
  padding-left: clamp(20px, 2.4vw, 42px);
  border-left: 1px solid rgba(31, 58, 61, 0.2);
}

.contract-pilot-fact dt {
  margin: 0 0 8px;
  color: var(--deep-green);
  font-size: 0.59rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.contract-pilot-fact dd {
  margin: 0;
  color: rgba(31, 58, 61, 0.82);
  font-size: clamp(0.84rem, 1vw, 0.98rem);
  line-height: 1.45;
}

.contract-pilot-overview {
  padding: clamp(86px, 9vw, 148px) var(--contract-gutter);
  background: var(--off-white);
}

.contract-pilot-overview-inner {
  display: grid;
  grid-template-columns: minmax(250px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(70px, 10vw, 190px);
  align-items: start;
}

.contract-pilot-heading {
  padding-left: 26px;
  border-left: 4px solid var(--accent);
}

.contract-pilot-section-label {
  margin: 0 0 22px;
  color: var(--deep-green);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.contract-pilot-overview h2 {
  max-width: 590px;
  margin: 0;
  color: var(--deep-green);
  font-size: clamp(2.8rem, 5vw, 5.3rem);
  font-weight: 500;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.contract-pilot-copy {
  max-width: 820px;
  color: var(--slate);
}

.contract-pilot-copy p {
  margin: 0;
  font-size: clamp(1rem, 1.2vw, 1.16rem);
  line-height: 1.75;
}

.contract-pilot-topics {
  margin: 34px 0 0;
  padding: 28px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid rgba(31, 58, 61, 0.16);
  list-style: none;
}

.contract-pilot-topics li {
  padding: 7px 13px;
  border: 0;
  border-radius: 0;
  background: #e1e8e5;
  color: var(--deep-green);
  font-size: 0.7rem;
  line-height: 1;
}

.contract-pilot-sequence {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #dfe7e4;
  border-top: 1px solid rgba(31, 58, 61, 0.2);
  border-bottom: 1px solid rgba(31, 58, 61, 0.2);
}

.contract-pilot-sequence a {
  min-height: 164px;
  padding: clamp(34px, 4vw, 58px) var(--contract-gutter);
  display: grid;
  align-content: center;
  gap: 8px;
  color: var(--deep-green);
  transition: background-color 200ms ease, color 200ms ease;
}

.contract-pilot-sequence a + a {
  border-left: 1px solid rgba(31, 58, 61, 0.2);
}

.contract-pilot-sequence a:last-child:has(.contract-pilot-arrow) {
  grid-template-columns: 1fr auto;
  text-align: right;
}

.contract-pilot-sequence a:last-child:has(.contract-pilot-arrow) small,
.contract-pilot-sequence a:last-child:has(.contract-pilot-arrow) strong {
  grid-column: 1;
}

.contract-pilot-sequence small {
  color: rgba(31, 58, 61, 0.7);
  font-size: 0.61rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.contract-pilot-sequence strong {
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: clamp(1.35rem, 2vw, 2rem);
  font-weight: 500;
}

.contract-pilot-arrow {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  color: var(--deep-green);
  font-size: 2rem;
}

.contract-pilot-sequence a:hover,
.contract-pilot-sequence a:focus-visible {
  background: var(--accent);
  color: var(--deep-green);
}

.contract-pilot-sequence a:hover small,
.contract-pilot-sequence a:focus-visible small,
.contract-pilot-sequence a:hover .contract-pilot-arrow,
.contract-pilot-sequence a:focus-visible .contract-pilot-arrow {
  color: var(--deep-green);
}

.contract-pilot-sequence.has-previous.has-next {
  grid-template-columns: 1fr 1.15fr 1fr;
}

.contract-pilot-sequence.has-previous:not(.has-next) {
  grid-template-columns: 1fr 1fr;
}

.contract-pilot-sequence.has-previous:not(.has-next) a:nth-child(2) {
  grid-template-columns: 1fr;
  text-align: right;
}

.contract-pilot-sequence.has-previous a:nth-child(2) {
  text-align: center;
}

.contract-pilot-sequence.has-previous a:first-child {
  grid-template-columns: auto 1fr;
}

.contract-pilot-sequence.has-previous .contract-pilot-arrow.is-back {
  grid-column: 1;
  grid-row: 1 / span 2;
  margin-right: 12px;
}

@media (max-width: 900px) {
  .contract-pilot-hero {
    min-height: 0;
    padding: 32px 5vw 44px;
  }

  .contract-pilot-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(150px, 210px);
    gap: 40px;
    padding: 68px 0 58px;
  }

  .contract-pilot-title {
    font-size: clamp(4rem, 11vw, 6.2rem);
  }

  .contract-pilot-title.is-long {
    font-size: clamp(3.25rem, 8vw, 5rem);
  }

  .contract-pilot-title.is-very-long {
    font-size: clamp(2.6rem, 6.3vw, 4.15rem);
  }

  .contract-pilot-visual {
    width: min(100%, 210px);
  }

  .contract-pilot-overview {
    padding: 90px 5vw;
  }

  .contract-pilot-overview-inner {
    grid-template-columns: minmax(210px, 0.65fr) minmax(0, 1.35fr);
    gap: 54px;
  }
}

@media (max-width: 680px) {
  .contract-pilot-hero {
    padding: 26px 6vw 38px;
  }

  .contract-pilot-hero-grid,
  .contract-pilot-overview-inner {
    grid-template-columns: 1fr;
  }

  .contract-pilot-hero-grid {
    gap: 42px;
    padding: 58px 0 52px;
  }

  .contract-pilot-kicker {
    flex-wrap: wrap;
  }

  .contract-pilot-title {
    max-width: 100%;
    font-size: clamp(3rem, 14.5vw, 4.1rem);
    overflow-wrap: anywhere;
  }

  .contract-pilot-title.is-long,
  .contract-pilot-title.is-very-long {
    font-size: clamp(2.45rem, 11vw, 3.5rem);
    line-height: 0.98;
  }

  .contract-pilot-lead {
    max-width: 100%;
    margin-top: 22px;
    font-size: 1.05rem;
    overflow-wrap: anywhere;
  }

  .contract-pilot-visual {
    width: 154px;
    justify-self: start;
  }

  .contract-pilot-meta,
  .contract-pilot-sequence {
    grid-template-columns: 1fr;
  }

  .contract-pilot-sequence.has-previous,
  .contract-pilot-sequence.has-previous.has-next,
  .contract-pilot-sequence.has-previous:not(.has-next) {
    grid-template-columns: 1fr;
  }

  .contract-pilot-fact,
  .contract-pilot-fact + .contract-pilot-fact {
    padding: 19px 0;
    border-top: 1px solid rgba(31, 58, 61, 0.16);
    border-left: 0;
  }

  .contract-pilot-overview {
    padding: 72px 6vw;
  }

  .contract-pilot-overview-inner {
    gap: 46px;
  }

  .contract-pilot-heading {
    padding-left: 18px;
  }

  .contract-pilot-overview h2 {
    font-size: clamp(2.6rem, 12vw, 3.8rem);
  }

  .contract-pilot-sequence a {
    min-height: 136px;
    padding: 32px 6vw;
  }

  .contract-pilot-sequence a + a {
    border-top: 1px solid rgba(31, 58, 61, 0.2);
    border-left: 0;
  }

  .contract-pilot-sequence.has-previous a:nth-child(2),
  .contract-pilot-sequence.has-previous:not(.has-next) a:nth-child(2) {
    text-align: left;
  }
}