:root {
  --header-height: 84px;
  --page-progress: 0;
}

body {
  background: var(--ac-white);
}

main {
  min-height: 60vh;
}

.site-header {
  transition:
    opacity 280ms var(--ease-out),
    transform 280ms var(--ease-out),
    background var(--dur) var(--ease-out),
    height var(--dur) var(--ease-out);
}

.site-header.is-yielding {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-18px);
}

.page-pipeline {
  position: fixed;
  top: 84px;
  right: 18px;
  bottom: 24px;
  z-index: 35;
  width: 4px;
  pointer-events: none;
}

.page-pipeline span {
  position: absolute;
  left: 0;
  width: 2px;
  border-radius: var(--radius-pill);
}

.page-pipeline span:nth-child(1) {
  inset-block: 0;
  background: rgba(77, 147, 217, 0.14);
}

.page-pipeline span:nth-child(2) {
  top: 0;
  height: calc(var(--page-progress) * 100%);
  background: var(--ac-sky);
}

.page-pipeline span:nth-child(3) {
  top: calc(var(--page-progress) * 100%);
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -3px;
  border: 2px solid var(--ac-white);
  border-radius: 50%;
  background: var(--ac-sky);
  box-shadow: 0 0 0 4px rgba(77, 147, 217, 0.18);
}

.page-hero {
  position: relative;
  overflow: hidden;
  padding: 164px 0 88px;
  background:
    radial-gradient(circle at 86% 18%, rgba(77, 147, 217, 0.28), transparent 32%),
    linear-gradient(135deg, var(--ac-navy-deep), var(--ac-navy) 58%, var(--ac-blue-600));
  color: var(--ac-white);
}

.page-hero::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}

.page-hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.84fr);
  align-items: center;
  gap: 64px;
}

.page-hero h1 {
  max-width: 800px;
  color: var(--ac-white);
}

.page-hero .section-lead {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.82);
}

.page-hero-secondary {
  max-width: 720px;
  color: var(--ac-sky-200);
  font-size: var(--fs-sm);
}

.technical-markers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.technical-markers li {
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-pill);
  color: var(--ac-sky-200);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.technical-flow-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  background: rgba(0, 35, 71, 0.76);
  box-shadow: var(--shadow-lg);
}

.technical-flow-card__head {
  display: flex;
  justify-content: space-between;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--ac-sky-200);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
}

.technical-flow-card__body {
  position: relative;
  min-height: 320px;
  padding: 34px 26px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
}

.technical-flow {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
  gap: 14px;
  min-height: 220px;
}

.technical-flow__step {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: 92px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  padding: 12px 8px;
  border: 1px solid rgba(179, 209, 240, 0.3);
  border-radius: var(--radius-md);
  background: var(--ac-navy-deep);
  text-align: center;
}

.technical-flow__step strong {
  color: var(--ac-white);
  font-size: 12px;
}

.technical-flow__step span {
  color: var(--ac-sky);
  font-family: var(--font-mono);
  font-size: 9px;
}

.technical-flow__line {
  position: absolute;
  top: 50%;
  right: 8%;
  left: 8%;
  height: 2px;
  background: linear-gradient(90deg, var(--ac-sky-200), var(--ac-sky));
  box-shadow: 0 0 14px rgba(77, 147, 217, 0.4);
}

.technical-flow-card__foot {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.technical-flow-card__foot span {
  padding: 13px 9px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.65);
  font-family: var(--font-mono);
  font-size: 9px;
  text-align: center;
}

.technical-flow-card__foot span:last-child {
  border-right: 0;
}

.breadcrumbs {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  color: var(--ac-sky-200);
  font-size: var(--fs-caption);
}

.breadcrumbs a {
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--ac-white);
  text-decoration: underline;
}

.anchor-nav-wrap {
  position: sticky;
  top: 70px;
  z-index: 30;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
}

.anchor-nav {
  display: flex;
  overflow-x: auto;
  gap: 8px;
  padding-block: 13px;
  scrollbar-width: thin;
}

.anchor-nav a {
  flex: 0 0 auto;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  text-decoration: none;
}

.anchor-nav a:hover,
.anchor-nav a:focus-visible {
  border-color: var(--ac-blue);
  background: var(--ac-blue);
  color: var(--ac-white);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.roadmap-services-grid .service-card {
  min-height: 380px;
  scroll-margin-top: 150px;
}

.service-card.is-active {
  border-color: var(--ac-blue);
  box-shadow: var(--shadow-md);
}

.service-highlights {
  display: flex;
  margin: 2px 0 24px;
  padding: 0;
  flex-direction: column;
  gap: 7px;
  color: var(--text-muted);
  font-size: 13px;
  list-style: none;
}

.service-highlights li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-highlights li::before {
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--ac-sky);
  content: "";
}

.service-explore {
  display: flex;
  width: 100%;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding: 14px 0 0;
  border: 0;
  border-top: 1px solid var(--border);
  background: transparent;
  color: var(--ac-blue);
  cursor: pointer;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-align: left;
}

.service-explore::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
}

.service-explore[aria-expanded="true"]::after {
  content: "–";
}

.service-detail-panel {
  position: relative;
  grid-column: 1 / -1;
  margin-top: 24px;
  padding: 38px;
  border: 1px solid var(--ac-sky-200);
  border-radius: var(--radius-lg);
  background: var(--ac-white);
  box-shadow: var(--shadow-md);
}

.service-detail-panel__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--ac-white);
  color: var(--ac-navy);
  cursor: pointer;
  font-size: 24px;
}

.service-detail-panel h2 {
  max-width: 860px;
  padding-right: 52px;
  font-size: var(--fs-h2);
}

.service-detail-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 28px;
}

.service-detail-columns h3 {
  font-size: var(--fs-body);
}

.service-detail-columns ul {
  margin: 0;
  padding-left: 18px;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.service-detail-columns li + li {
  margin-top: 7px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  min-height: 260px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--ac-white);
}

.feature-card__number {
  display: block;
  margin-bottom: 30px;
  color: var(--ac-sky);
  font-family: var(--font-mono);
  font-size: 12px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.deliverables-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--border);
}

.deliverable {
  min-height: 220px;
  padding: 26px;
  background: var(--ac-white);
}

.deliverable span {
  color: var(--ac-sky);
  font-family: var(--font-mono);
  font-size: 11px;
}

.deliverable h3 {
  margin-top: 22px;
}

.deliverable p {
  margin: 0;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.scope-layout,
.faq-layout,
.about-purpose-grid,
.leadership-grid,
.editorial-method-grid,
.experience-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  align-items: start;
  gap: 72px;
}

.scope-factors {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.scope-factors li {
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--ac-white);
  color: var(--text-muted);
  font-size: 13px;
}

.faq-list {
  border-top: 1px solid var(--border);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item__trigger {
  display: grid;
  width: 100%;
  min-height: 68px;
  grid-template-columns: 1fr 30px;
  align-items: center;
  gap: 22px;
  padding: 18px 0;
  border: 0;
  background: transparent;
  color: var(--text-heading);
  cursor: pointer;
  font-weight: var(--fw-semibold);
  text-align: left;
}

.faq-item__icon {
  display: inline-flex;
  width: 28px;
  height: 28px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ac-sky-200);
  border-radius: 50%;
  color: var(--ac-blue);
  font-size: 20px;
  line-height: 1;
}

.faq-item__content {
  padding: 0 48px 24px 0;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.faq-item__content p {
  margin: 0;
}

.section-muted {
  background: var(--ac-slate-50);
}

.section-tint {
  background: var(--surface-tint);
}

.quote-panel {
  padding: 42px;
  border-left: 3px solid var(--ac-sky);
  background: var(--ac-navy);
  color: var(--ac-white);
  font-size: clamp(25px, 3vw, 38px);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-heading);
  line-height: 1.22;
}

.specialization-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--border);
}

.specialization-item {
  min-height: 170px;
  padding: 24px;
  background: var(--ac-white);
}

.specialization-item span {
  color: var(--ac-sky);
  font-family: var(--font-mono);
  font-size: 11px;
}

.specialization-item h3 {
  margin-top: 28px;
  font-size: 17px;
}

.method-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 46px;
}

.method-flow::before {
  position: absolute;
  top: 29px;
  right: 8%;
  left: 8%;
  height: 2px;
  background: var(--ac-sky-200);
  content: "";
}

.method-step {
  position: relative;
  z-index: 1;
}

.method-step__node {
  display: inline-flex;
  width: 60px;
  height: 60px;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border: 2px solid var(--ac-sky);
  border-radius: 50%;
  background: var(--ac-white);
  color: var(--ac-blue);
  font-family: var(--font-mono);
  font-size: 12px;
}

.method-step p {
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.portrait-placeholder {
  display: flex;
  min-height: 500px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 14px;
  border: 1px dashed var(--ac-sky-200);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, transparent 48%, rgba(77, 147, 217, 0.08) 49%, rgba(77, 147, 217, 0.08) 51%, transparent 52%),
    var(--ac-sky-50);
  color: var(--text-muted);
  text-align: center;
}

.portrait-placeholder svg {
  width: 42px;
  height: 42px;
  color: var(--ac-blue);
}

.portrait-placeholder small {
  max-width: 260px;
}

.credential-list {
  display: flex;
  margin: 28px 0 0;
  padding: 0;
  flex-direction: column;
  gap: 12px;
  list-style: none;
}

.credential-list li {
  display: flex;
  gap: 10px;
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.credential-list li::before {
  color: var(--ac-sky);
  content: "—";
}

.editorial-empty {
  padding: 34px;
  border: 1px solid var(--ac-sky-200);
  border-radius: var(--radius-lg);
  background: var(--surface-tint);
}

.editorial-empty strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text-heading);
  font-size: var(--fs-h4);
}

.topic-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.topic-list li {
  padding: 9px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: var(--ac-white);
  color: var(--text-muted);
  font-size: var(--fs-caption);
}

.editorial-method {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-top: 38px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--border);
}

.editorial-step {
  min-height: 220px;
  padding: 22px;
  background: var(--ac-white);
}

.editorial-step span {
  color: var(--ac-sky);
  font-family: var(--font-mono);
  font-size: 11px;
}

.editorial-step h3 {
  margin-top: 24px;
}

.editorial-step p {
  color: var(--text-muted);
  font-size: 13px;
}

.draft-badge {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  padding: 5px 10px;
  border: 1px solid #d7a448;
  border-radius: var(--radius-pill);
  background: #fff8e8;
  color: #7a5310;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-card fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

.contact-card legend {
  margin-bottom: 24px;
  color: var(--text-heading);
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
}

.field-error {
  margin: 0;
  color: var(--ac-danger);
  font-size: 12px;
}

.field-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: var(--text-faint);
  font-size: 11px;
}

.privacy-notice {
  margin: 20px 0;
  color: var(--text-muted);
  font-size: 12px;
}

.privacy-notice a {
  color: var(--ac-blue);
}

.newsletter-field {
  margin-bottom: 20px;
}

.form-status {
  min-height: 24px;
  margin: 12px 0 0;
  font-size: 12px;
  text-align: center;
}

.form-status[data-state="error"] {
  color: var(--ac-danger);
}

.contact-channel-state {
  margin-top: 34px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  color: var(--ac-sky-200);
  font-size: 12px;
}

.experience-evidence {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 42px;
}

.evidence-card {
  min-height: 260px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--ac-white);
}

.evidence-card h3 {
  margin-top: 26px;
}

.evidence-card p {
  color: var(--text-muted);
  font-size: var(--fs-sm);
}

.site-footer .footer-grid {
  position: relative;
}

.footer-meta-links {
  display: flex;
  gap: 16px;
}

.footer-meta-links a {
  font-size: var(--fs-caption);
}

@media (max-width: 1100px) {
  .page-hero-grid {
    grid-template-columns: 1fr 0.9fr;
    gap: 38px;
  }

  .feature-grid,
  .specialization-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .editorial-method {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 920px) {
  .page-pipeline {
    right: 8px;
    opacity: 0.6;
  }

  .page-hero-grid,
  .scope-layout,
  .faq-layout,
  .about-purpose-grid,
  .leadership-grid,
  .editorial-method-grid,
  .experience-layout {
    grid-template-columns: 1fr;
  }

  .page-hero-grid {
    gap: 44px;
  }

  .roadmap-grid,
  .deliverables-grid,
  .experience-evidence {
    grid-template-columns: repeat(2, 1fr);
  }

  .service-detail-columns {
    grid-template-columns: 1fr 1fr;
  }

  .method-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .method-flow::before {
    display: none;
  }

  .editorial-method {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 680px) {
  .page-hero {
    padding: 132px 0 64px;
  }

  .page-hero h1 {
    font-size: clamp(38px, 12vw, 52px);
  }

  .technical-flow {
    grid-template-columns: 1fr;
  }

  .technical-flow__line {
    top: 9%;
    bottom: 9%;
    left: 50%;
    width: 2px;
    height: auto;
  }

  .technical-flow-card__foot {
    grid-template-columns: repeat(2, 1fr);
  }

  .anchor-nav-wrap {
    top: 70px;
  }

  .roadmap-grid,
  .deliverables-grid,
  .feature-grid,
  .specialization-grid,
  .experience-evidence,
  .service-detail-columns,
  .scope-factors,
  .method-flow,
  .editorial-method {
    grid-template-columns: 1fr;
  }

  .service-detail-panel {
    padding: 28px 20px;
  }

  .feature-card,
  .deliverable,
  .editorial-step {
    min-height: 0;
  }

  .quote-panel {
    padding: 30px 24px;
  }

  .portrait-placeholder {
    min-height: 380px;
  }

  .faq-item__content {
    padding-right: 0;
  }

  .footer-bottom .container {
    align-items: flex-start;
  }

  .footer-meta-links {
    flex-direction: column;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-pipeline span:nth-child(3) {
    display: none;
  }

  .site-header,
  .page-pipeline span,
  .service-card,
  .faq-item__content {
    transition: none !important;
  }
}