/* ============================================
   CGI GROUP — REPOSITIONING COMPONENTS
   Shared across the AI-systems pages
   ============================================ */

/* ---- Infrastructure strip ---- */

.infra-strip {
  background: var(--ink);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: 2.25rem 0;
}

.infra-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.infra-strip-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--silver);
  max-width: 22ch;
  line-height: 1.6;
}

.infra-strip-items {
  display: flex;
  gap: 2.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.infra-strip-items span {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--mist);
  letter-spacing: -0.01em;
}

.infra-strip-items span.dim {
  color: var(--mist);
  font-weight: 600;
}

/* ---- Section intro ---- */

.section-intro {
  max-width: 720px;
  margin-bottom: 3.5rem;
}

.section-intro.wide { max-width: 880px; }
.section-intro h2 { margin: 1rem 0 1.25rem; }

/* ---- Positioning spine block ---- */

.spine {
  background: var(--ink);
  color: var(--mist);
  padding: clamp(4rem, 8vw, 7rem) 0;
}

.spine-statement {
  font-family: var(--sans);
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.18;
  color: var(--mist);
  max-width: 24ch;
}

.spine-statement em {
  font-style: normal;
  color: var(--silver);
}

.spine-support {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--line-dark);
}

.spine-support .item {
  padding: 1.75rem 1.5rem 1.75rem 0;
  border-right: 1px solid var(--line-dark);
}
.spine-support .item:last-child { border-right: none; padding-right: 0; }
.spine-support .item:not(:first-child) { padding-left: 1.5rem; }

.spine-support .item .k {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal);
  display: block;
  margin-bottom: 0.6rem;
}

.spine-support .item p {
  color: var(--silver);
  font-size: 0.9rem;
  margin: 0;
}

@media (max-width: 880px) {
  .spine-support { grid-template-columns: 1fr; }
  .spine-support .item {
    padding: 1.5rem 0;
    border-right: none;
    border-bottom: 1px solid var(--line-dark);
  }
  .spine-support .item:not(:first-child) { padding-left: 0; }
  .spine-support .item:last-child { border-bottom: none; }
}

/* ---- GPT module cards ---- */

.gpt-phase {
  margin-bottom: 4rem;
}

.gpt-phase-header {
  display: flex;
  align-items: baseline;
  gap: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.gpt-phase-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--signal);
  text-transform: uppercase;
}

.gpt-phase-title {
  font-family: var(--sans);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.gpt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.gpt-card {
  border: 1px solid var(--line);
  background: var(--mist);
  padding: 1.75rem 1.6rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.18s, transform 0.18s;
  position: relative;
}

.gpt-card:hover {
  border-color: var(--signal);
  transform: translateY(-2px);
}

.gpt-card-top {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.gpt-card-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--signal);
  flex-shrink: 0;
}

.gpt-card h3 {
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.gpt-card .gpt-fn {
  font-size: 0.9rem;
  color: var(--steel);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.gpt-card .gpt-value {
  font-size: 0.86rem;
  color: var(--ink);
  font-weight: 500;
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  margin-top: auto;
  line-height: 1.5;
}

.gpt-card .gpt-private {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  color: var(--silver);
  line-height: 1.55;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}

.gpt-card .gpt-link {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
  margin-top: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.gpt-card .gpt-link .arr { transition: transform 0.2s; }
.gpt-card:hover .gpt-link .arr { transform: translateX(3px); }

@media (max-width: 760px) {
  .gpt-grid { grid-template-columns: 1fr; }
}

/* ---- Roadmap ---- */

.roadmap {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.roadmap-step {
  padding: 1.4rem 1.25rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--mist);
  transition: background 0.2s;
}

.roadmap-step:hover { background: var(--paper); }

.roadmap-step .rm-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--signal);
  display: block;
  margin-bottom: 0.65rem;
}

.roadmap-step .rm-label {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--ink);
  line-height: 1.3;
}

/* ---- Decision tree ---- */

.decision-tree {
  border-top: 1px solid var(--line);
}

.decision-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--line);
}

.decision-row .symptom {
  font-size: 0.95rem;
  color: var(--steel);
}

.decision-row .arrow {
  font-family: var(--mono);
  color: var(--signal);
  font-size: 0.9rem;
}

.decision-row .route {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}

@media (max-width: 680px) {
  .decision-row {
    grid-template-columns: 1fr;
    gap: 0.35rem;
    padding: 1rem 0;
  }
  .decision-row .arrow { display: none; }
  .decision-row .route { color: var(--signal); }
}

/* ---- Comparison table ---- */

.compare-wrap { overflow-x: auto; }

.compare-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 880px;
}

.compare-table th, .compare-table td {
  text-align: left;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.compare-table thead th {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steel);
  font-weight: 500;
  border-bottom: 1px solid var(--ink);
}

.compare-table thead th.cgi-col {
  color: var(--signal);
}

.compare-table tbody th {
  font-family: var(--sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  width: 180px;
}

.compare-table tbody td {
  font-size: 0.86rem;
  color: var(--steel);
  line-height: 1.5;
}

.compare-table td.cgi-col {
  background: rgba(10, 31, 143, 0.04);
  color: var(--ink);
  font-weight: 500;
}

.compare-table tbody tr:hover td:not(.cgi-col) {
  background: var(--paper);
}

/* ---- Capability tiles ---- */

.cap-tiles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.cap-tile {
  padding: 2.25rem 2rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--mist);
  transition: background 0.2s;
}

.cap-tile:hover { background: var(--paper); }

.cap-tile .ct-num {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--signal);
  display: block;
  margin-bottom: 1rem;
}

.cap-tile h3 {
  font-size: 1.2rem;
  margin-bottom: 0.75rem;
}

.cap-tile p {
  font-size: 0.92rem;
  color: var(--steel);
}

@media (max-width: 760px) {
  .cap-tiles { grid-template-columns: 1fr; }
}

/* ---- Dark capability tiles (for use on dark sections) ---- */

.section-dark .cap-tiles {
  border-top-color: var(--line-dark);
  border-left-color: var(--line-dark);
}
.section-dark .cap-tile {
  background: transparent;
  border-right-color: var(--line-dark);
  border-bottom-color: var(--line-dark);
}
.section-dark .cap-tile:hover { background: rgba(255,255,255,0.02); }
.section-dark .cap-tile h3 { color: var(--mist); }
.section-dark .cap-tile p { color: var(--silver); }

/* ---- Two-column feature rows ---- */

.feature-rows { border-top: 1px solid var(--line); }

.feature-row {
  display: grid;
  grid-template-columns: 0.8fr 1.5fr;
  gap: 3rem;
  padding: 2.75rem 0;
  border-bottom: 1px solid var(--line);
}

.feature-row .fr-side .fr-num {
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--signal);
}

.feature-row .fr-side h3 {
  margin-top: 0.65rem;
  font-size: 1.4rem;
}

.feature-row .fr-body p {
  margin-bottom: 1rem;
}

.feature-row .fr-list {
  list-style: none;
  padding: 0;
  margin-top: 1.25rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1.5rem;
}

.feature-row .fr-list li {
  font-size: 0.85rem;
  color: var(--steel);
  padding-left: 1rem;
  position: relative;
}

.feature-row .fr-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6rem;
  width: 6px;
  height: 1px;
  background: var(--signal);
}

@media (max-width: 880px) {
  .feature-row { grid-template-columns: 1fr; gap: 1.25rem; }
  .feature-row .fr-list { grid-template-columns: 1fr; }
}

/* ---- Stat band ---- */

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.stat-band .sb-item {
  padding: 2.25rem 1.5rem;
  border-right: 1px solid var(--line-dark);
}
.stat-band .sb-item:last-child { border-right: none; }

.stat-band .sb-num {
  font-family: var(--sans);
  font-size: 2.4rem;
  font-weight: 500;
  letter-spacing: -0.04em;
  color: var(--mist);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-band .sb-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
  line-height: 1.5;
}

@media (max-width: 760px) {
  .stat-band { grid-template-columns: 1fr 1fr; }
  .stat-band .sb-item:nth-child(2) { border-right: none; }
}

/* ---- CTA band (shared) ---- */

.cta-band {
  background: var(--paper);
  padding: clamp(5rem, 9vw, 8rem) 0;
}

.cta-band.on-paper-alt { background: var(--mist); border-top: 1px solid var(--line); }

.cta-card-2 {
  background: var(--ink);
  color: var(--mist);
  padding: clamp(2.75rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cta-card-2 .eyebrow { color: var(--silver); border-bottom-color: var(--line-dark); }
.cta-card-2 h2 { color: var(--mist); margin: 1rem 0 1rem; }
.cta-card-2 p { color: var(--silver); }

.cta-card-2-actions {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

@media (max-width: 880px) {
  .cta-card-2 { grid-template-columns: 1fr; }
}

/* ---- Prose blocks for dense pages ---- */

.prose-block { max-width: 60ch; }
.prose-block p { margin-bottom: 1.25rem; }
.prose-block p:last-child { margin-bottom: 0; }
.prose-block em { font-style: normal; color: var(--ink); font-weight: 600; }
.section-dark .prose-block em { color: var(--mist); }

/* ---- Section utilities (shared by repositioning pages) ---- */

.section { padding: clamp(5rem, 9vw, 8rem) 0; background: var(--mist); }
.section-alt { background: var(--paper); border-top: 1px solid var(--line); }
.section-dark { background: var(--ink); }

/* Page header (interior pages) */
.page-header {
  background: var(--ink);
  color: var(--mist);
  padding: 7rem 0 5rem;
  position: relative;
  overflow: hidden;
}
.page-header .container { position: relative; z-index: 1; }
.page-header h1 { color: var(--mist); margin: 1rem 0 1.5rem; max-width: 20ch; }
.page-header p { color: var(--silver); max-width: 58ch; font-size: 1.08rem; }
.page-header-watermark {
  position: absolute;
  top: 50%; right: -8%;
  transform: translateY(-50%);
  width: 540px; height: 540px;
  opacity: 0.16;
  pointer-events: none;
  user-select: none;
}
@media (max-width: 880px) {
  .page-header-watermark { width: 340px; height: 340px; right: -22%; opacity: 0.1; }
}

/* cap-tile as anchor */
a.cap-tile { text-decoration: none; display: block; }
a.cap-tile h3 { transition: color 0.15s; }
a.cap-tile:hover h3 { color: var(--signal); }

/* ---- Optimization gap (comparison page) ---- */
.opt-gap-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}
.opt-gap-statement {
  background: var(--ink);
  padding: 2.5rem 2rem;
}
.opt-gap-statement p {
  font-family: var(--sans);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.25;
  color: var(--mist);
  margin: 0;
}
@media (max-width: 880px) {
  .opt-gap-grid { grid-template-columns: 1fr; }
}