:root {
  --ink: #132033;
  --muted: #526173;
  --paper: #f5f7f7;
  --white: #ffffff;
  --line: #d9e0e6;
  --blue: #155dbb;
  --blue-deep: #0e3f7e;
  --teal: #127475;
  --gold: #b98a2d;
  --shadow: 0 24px 70px rgba(19, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background:
    linear-gradient(120deg, rgba(21, 93, 187, 0.08), rgba(18, 116, 117, 0.08)),
    var(--paper);
}

.site-shell {
  min-height: calc(100vh - 58px);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 42px;
  align-items: center;
  min-height: min(760px, 72vh);
  padding: clamp(28px, 5vw, 72px);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.78)),
    url("data:image/svg+xml,%3Csvg width='1200' height='800' viewBox='0 0 1200 800' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23155dbb' stroke-opacity='.16' stroke-width='2'%3E%3Cpath d='M80 160h250v90h160v-50h180v160h210v-80h230'/%3E%3Cpath d='M130 520h180v-80h150v60h220v-130h140v70h250'/%3E%3Cpath d='M260 250v190M670 200v170M880 360v80'/%3E%3Ccircle cx='330' cy='250' r='26'/%3E%3Ccircle cx='490' cy='200' r='22'/%3E%3Ccircle cx='680' cy='370' r='24'/%3E%3Ccircle cx='820' cy='440' r='22'/%3E%3C/g%3E%3Cg fill='%23127475' fill-opacity='.12'%3E%3Crect x='94' y='145' width='72' height='30' rx='4'/%3E%3Crect x='580' y='346' width='96' height='30' rx='4'/%3E%3Crect x='920' y='265' width='92' height='30' rx='4'/%3E%3C/g%3E%3C/svg%3E");
  background-position: center;
  background-size: cover;
  z-index: -1;
}

.hero__content {
  max-width: 830px;
}

.brand-logo {
  width: min(220px, 62vw);
  height: auto;
  margin-bottom: 34px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 12px 34px rgba(19, 32, 51, 0.14);
}

.qaai-brand-card {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 26px;
  padding: 14px 18px;
  background: #ffffff;
  border: 1px solid var(--line);
  border-top: 4px solid var(--teal);
  box-shadow: 0 12px 34px rgba(16, 32, 43, 0.1);
}

.qaai-brand-card .brand-logo {
  width: 110px;
  margin: 0;
}

.qaai-brand-card strong,
.qaai-brand-card span {
  display: block;
}

.qaai-brand-card strong {
  color: var(--ink);
  font-size: 1.35rem;
}

.qaai-brand-card span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.83rem;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 0;
  font-size: clamp(42px, 6.2vw, 72px);
  line-height: 0.98;
  letter-spacing: 0;
}

.intro {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.45;
}

.status-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.status-row span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.action-row a,
.publish-grid a {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 9px 12px;
  color: var(--white);
  background: var(--blue-deep);
  border: 1px solid var(--blue-deep);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.scorecard-panel {
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 5px solid var(--gold);
  box-shadow: var(--shadow);
}

.panel-label {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

.scorecard-panel dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.scorecard-panel div {
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.scorecard-panel div:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.scorecard-panel dt {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.scorecard-panel dd {
  margin: 0;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
}

.capabilities {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding: 0 clamp(28px, 5vw, 72px) 46px;
  margin-top: -8px;
}

.capabilities article {
  min-height: 190px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
}

.capability-mark {
  display: block;
  width: 48px;
  height: 5px;
  margin-bottom: 20px;
  background: linear-gradient(90deg, var(--blue), var(--teal), var(--gold));
}

h2 {
  margin: 0;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: 0;
}

.capabilities p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.engine-update {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.35fr);
  gap: 1px;
  margin: 4px clamp(28px, 5vw, 72px) 54px;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.engine-update__intro {
  padding: clamp(28px, 4vw, 46px);
  color: var(--white);
  background: #102b45;
}

.engine-update__intro h2 {
  font-size: clamp(30px, 4vw, 46px);
}

.engine-update__intro p {
  color: #c8d8e8;
  line-height: 1.58;
}

.engine-update__intro .engine-update__lead {
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
}

.engine-update__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.engine-update__actions a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  color: var(--ink);
  background: #f5e7bd;
  border: 1px solid #f5e7bd;
  font-weight: 700;
  text-decoration: none;
}

.engine-update__actions .secondary-action {
  color: var(--white);
  background: transparent;
  border-color: rgba(255, 255, 255, 0.55);
}

.engine-update__details {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
}

.engine-update__details article {
  padding: 28px 24px;
  background: var(--white);
}

.engine-update__details span {
  display: block;
  margin-bottom: 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.engine-update__details h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
}

.engine-update__details p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.publish-list {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.5fr);
  gap: 28px;
  padding: 10px clamp(28px, 5vw, 72px) 58px;
}

.proof-section {
  margin: 4px clamp(28px, 5vw, 72px) 54px;
  padding: clamp(28px, 4vw, 46px);
  color: var(--white);
  background: #102b45;
  box-shadow: var(--shadow);
}

.proof-heading { max-width: 850px; }
.proof-heading h2 { font-size: clamp(28px, 4vw, 44px); }
.proof-heading > p:last-child { color: #c8d8e8; line-height: 1.55; }

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: rgba(255,255,255,.2);
}

.proof-grid article { padding: 24px; background: #173a5a; }
.proof-grid strong { display: block; color: #f5e7bd; font-size: clamp(23px, 3vw, 34px); }
.proof-grid span { display: block; margin-top: 10px; color: #d8e5f0; line-height: 1.45; }
.proof-grid span b { color: var(--white); }
.proof-grid em { display: block; margin-top: 18px; color: #f5e7bd; font-style: normal; font-weight: 700; }
.tally-note { margin: 18px 0 0; color: #c8d8e8; font-size: 14px; }

.publish-list > div:first-child {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 5px solid var(--teal);
}

.publish-list h2 {
  margin-top: 12px;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.05;
}

.publish-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
}

.publish-grid article {
  min-height: 220px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
}

.publish-grid h3 {
  margin: 0;
  font-size: 20px;
}

.publish-grid p {
  margin: 12px 0 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.intake-page .hero {
  min-height: min(760px, 70vh);
}

.intake-section {
  padding-top: 34px;
}

.intake-grid {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.intake-capabilities {
  margin-top: 0;
  padding-top: 10px;
}

.intake-callout {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 5px solid var(--gold);
}

.intake-callout p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
}

.intake-callout a {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  padding: 9px 12px;
  color: var(--white);
  background: var(--blue-deep);
  text-decoration: none;
  font-weight: 700;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  min-height: 58px;
  padding: 18px clamp(28px, 5vw, 72px);
  color: #d9e6f5;
  background: var(--blue-deep);
  font-size: 13px;
}

footer span:first-child {
  font-weight: 700;
}

.case-study-page {
  padding-bottom: 54px;
}

.case-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
  gap: 36px;
  align-items: end;
  padding: clamp(34px, 6vw, 78px);
  background: linear-gradient(135deg, #ffffff 0%, #eef5fa 58%, #e6f1ee 100%);
}

.case-hero h1 {
  max-width: 950px;
  margin-top: 16px;
}

.text-link {
  color: var(--blue-deep);
  font-weight: 700;
  text-decoration: none;
}

.result-card {
  padding: 30px;
  color: var(--white);
  background: var(--blue-deep);
  border: 6px double rgba(255,255,255,.72);
  box-shadow: var(--shadow);
}

.result-card span,
.case-summary span {
  display: block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.result-card strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1;
}

.result-card p {
  margin: 14px 0 0;
  color: #d9e6f5;
  line-height: 1.45;
}

.case-summary {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  padding: 0 clamp(28px, 6vw, 78px);
  background: var(--line);
}

.case-summary article {
  min-height: 150px;
  padding: 24px;
  background: var(--white);
}

.case-summary span { color: var(--muted); }
.case-summary strong { display: block; margin-top: 12px; color: var(--blue-deep); font-size: 28px; }
.case-summary p { margin: 8px 0 0; color: var(--muted); line-height: 1.4; }

.case-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 48px clamp(28px, 6vw, 78px) 0;
}

.case-panel {
  padding: 30px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 5px solid var(--teal);
}

.case-panel h2 { font-size: clamp(25px, 3vw, 36px); }
.case-panel p, .case-panel li { color: var(--muted); font-size: 16px; line-height: 1.6; }
.case-panel li + li { margin-top: 8px; }

.assurance-graphic {
  margin: 48px clamp(28px, 6vw, 78px) 0;
  padding: clamp(28px, 5vw, 54px);
  color: var(--white);
  background: #102b45;
  border: 1px solid #244f75;
  box-shadow: var(--shadow);
}

.section-heading { max-width: 820px; }
.section-heading h2 { font-size: clamp(28px, 4vw, 46px); }
.section-heading > p:last-child { color: #c8d8e8; line-height: 1.55; }

.class-track {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 14px;
  align-items: stretch;
  margin-top: 32px;
}

.class-track article {
  padding: 22px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.18);
}

.class-track article.active {
  background: #f5e7bd;
  color: var(--ink);
  border-color: var(--gold);
}

.class-track span { display: block; color: #9fc2df; font-size: 12px; font-weight: 700; text-transform: uppercase; }
.class-track .active span { color: #785a19; }
.class-track strong { display: block; margin-top: 8px; font-size: 20px; }
.class-track p { margin: 10px 0 0; color: #c8d8e8; line-height: 1.45; }
.class-track .active p { color: #4e4a3b; }
.track-arrow { align-self: center; color: #81b8cf; font-size: 28px; }

.workflow-track {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: rgba(255,255,255,.18);
}

.workflow-track div { padding: 18px; background: #173a5a; }
.workflow-track b { display: grid; place-items: center; width: 30px; height: 30px; color: var(--ink); background: var(--gold); border-radius: 50%; }
.workflow-track span { display: block; margin-top: 14px; font-weight: 700; }
.workflow-track small { display: block; margin-top: 7px; color: #bfd0df; line-height: 1.4; }

.boundary-note {
  margin: 36px clamp(28px, 6vw, 78px) 0;
  padding: 24px 28px;
  background: var(--white);
  border-left: 6px solid var(--gold);
}

.boundary-note p { margin: 8px 0 0; color: var(--muted); line-height: 1.55; }

.peer-review {
  display: grid;
  grid-template-columns: minmax(240px, .7fr) minmax(0, 1.5fr);
  gap: 28px;
  margin: 48px clamp(28px, 6vw, 78px) 0;
  padding: clamp(28px, 4vw, 46px);
  background: var(--white);
  border-top: 5px solid var(--blue);
}

.peer-review h2 { font-size: clamp(27px, 3vw, 40px); }
.peer-review-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.peer-review-grid article { padding: 24px; background: var(--paper); border: 1px solid var(--line); }
.peer-review-grid h3 { margin: 0; font-size: 20px; }
.peer-review-grid ul { padding-left: 20px; }
.peer-review-grid li { color: var(--muted); line-height: 1.55; }
.peer-review-grid li + li { margin-top: 8px; }

.case-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px clamp(28px, 6vw, 78px) 0;
}

.case-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  color: var(--white);
  background: var(--blue-deep);
  font-weight: 700;
  text-decoration: none;
}

.evidence-custody {
  display: grid;
  grid-template-columns: minmax(260px, .8fr) minmax(0, 1.4fr);
  gap: 34px;
  margin: 48px clamp(28px, 6vw, 78px) 0;
  padding: clamp(28px, 4vw, 46px);
  color: var(--white);
  background: #102b45;
  box-shadow: var(--shadow);
}

.evidence-custody h2 { font-size: clamp(28px, 3vw, 40px); }
.evidence-custody p { color: #c8d8e8; line-height: 1.55; }
.evidence-custody ol { display: grid; gap: 1px; margin: 0; padding: 0; list-style: none; background: rgba(255,255,255,.18); }
.evidence-custody li { padding: 18px 20px; background: #173a5a; }
.evidence-custody strong, .evidence-custody span { display: block; }
.evidence-custody strong { color: #f5e7bd; }
.evidence-custody span { margin-top: 6px; color: #d8e5f0; line-height: 1.45; }

@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
    align-items: center;
    min-height: auto;
    padding-top: 34px;
  }

  .scorecard-panel {
    max-width: 620px;
  }

  .capabilities {
    grid-template-columns: 1fr;
  }

  .publish-list,
  .publish-grid {
    grid-template-columns: 1fr;
  }

  .engine-update {
    grid-template-columns: 1fr;
  }

  .engine-update__details {
    grid-template-columns: 1fr;
  }

  .case-hero,
  .case-grid {
    grid-template-columns: 1fr;
  }

  .case-summary {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .class-track {
    grid-template-columns: 1fr;
  }

  .track-arrow { transform: rotate(90deg); justify-self: center; }

  .workflow-track { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .peer-review { grid-template-columns: 1fr; }
  .evidence-custody { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .hero {
    gap: 22px;
    padding: 22px 18px 20px;
  }

  .brand-logo {
    width: min(210px, 58vw);
    margin-bottom: 22px;
  }

  h1 {
    font-size: 34px;
    line-height: 1.04;
  }

  .intro {
    margin-top: 18px;
    font-size: 16px;
  }

  .status-row {
    margin-top: 20px;
  }

  .status-row span {
    width: 100%;
  }

  .action-row a {
    width: 100%;
  }

  .scorecard-panel {
    padding: 18px;
  }

  .capabilities {
    padding: 0 18px 34px;
    margin-top: -20px;
  }

  .publish-list {
    padding: 0 18px 36px;
  }

  .proof-section { margin-left: 18px; margin-right: 18px; }
  .engine-update { margin-left: 18px; margin-right: 18px; }
  .engine-update__actions a { width: 100%; }
  .proof-grid { grid-template-columns: 1fr; }
  .peer-review { margin-left: 18px; margin-right: 18px; }
  .peer-review-grid { grid-template-columns: 1fr; }
  .case-actions { margin-left: 18px; margin-right: 18px; }
  .case-actions a { width: 100%; }
  .evidence-custody { margin-left: 18px; margin-right: 18px; }

  .capabilities article {
    min-height: 0;
    padding: 22px;
  }

  footer {
    flex-direction: column;
    padding: 18px;
  }

  .case-hero,
  .case-grid {
    padding-left: 18px;
    padding-right: 18px;
  }

  .case-summary {
    grid-template-columns: 1fr;
    padding-left: 18px;
    padding-right: 18px;
  }

  .assurance-graphic,
  .boundary-note {
    margin-left: 18px;
    margin-right: 18px;
  }
}