:root {
  --paper: #f7f8f5;
  --paper-strong: #ffffff;
  --ink: #111313;
  --muted: #5e6662;
  --line: #d9ddd4;
  --graphite: #1c2220;
  --graphite-soft: #2b3431;
  --cyan: #38b9c8;
  --green: #4fa66a;
  --amber: #c58b36;
  --shadow: 0 24px 70px rgba(22, 28, 25, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 30;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper-strong);
  border-radius: 6px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 18px clamp(20px, 4vw, 56px);
  background: rgba(247, 248, 245, 0.88);
  border-bottom: 1px solid rgba(217, 221, 212, 0.84);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.brand img {
  display: block;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  color: var(--muted);
  font-size: 14px;
}

.site-nav a {
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--ink);
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 7px;
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
}

.nav-cta {
  padding: 10px 16px;
  background: var(--graphite);
  color: var(--paper-strong);
  font-size: 14px;
}

.section-grid,
.section {
  padding-inline: clamp(20px, 5vw, 72px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 1.05fr);
  align-items: center;
  gap: clamp(28px, 5vw, 80px);
  min-height: calc(100vh - 76px);
  padding-block: clamp(56px, 9vh, 104px) clamp(46px, 8vh, 84px);
}

.hero-copy {
  max-width: 740px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: break-word;
}

h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(44px, 7vw, 88px);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(32px, 4.6vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 21px;
  line-height: 1.12;
}

.hero-lede,
.section-heading p,
.model-copy p,
.trust-panel p,
.contact-section p {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
}

.hero-lede {
  max-width: 680px;
  margin: 26px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-width: 190px;
  padding: 13px 18px;
  border: 1px solid var(--graphite);
}

.button.primary {
  background: var(--graphite);
  color: var(--paper-strong);
}

.button.secondary {
  background: transparent;
  color: var(--graphite);
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 38px 0 0;
  padding: 0;
  list-style: none;
}

.proof-strip li {
  min-height: 48px;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.58);
  color: var(--graphite);
  font-size: 14px;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  min-height: min(620px, 75vh);
  overflow: hidden;
  border: 1px solid rgba(17, 19, 19, 0.12);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(231, 238, 233, 0.72)),
    radial-gradient(circle at 65% 20%, rgba(56, 185, 200, 0.18), transparent 38%);
  box-shadow: var(--shadow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(17, 19, 19, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 19, 19, 0.06) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.86), transparent 96%);
}

#agent-graph {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.visual-card {
  position: absolute;
  display: grid;
  gap: 4px;
  width: min(230px, 46%);
  padding: 14px;
  border: 1px solid rgba(17, 19, 19, 0.12);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(12px);
}

.visual-card span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.visual-card strong {
  color: var(--graphite);
  font-size: 16px;
}

.visual-card-one {
  left: 28px;
  top: 34px;
}

.visual-card-two {
  right: 28px;
  top: 44%;
}

.visual-card-three {
  left: 42px;
  bottom: 34px;
}

.section {
  padding-block: clamp(72px, 11vw, 132px);
}

.band-light {
  background: var(--paper-strong);
  border-block: 1px solid var(--line);
}

.section-heading {
  max-width: 840px;
  margin-bottom: 44px;
}

.section-heading.compact {
  max-width: 760px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(220px, 1fr));
  gap: 14px;
}

.capability-card,
.system-row,
.step-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-strong);
}

.capability-card {
  display: flex;
  min-height: 440px;
  flex-direction: column;
  padding: 22px;
}

.capability-card p {
  margin: 14px 0 0;
  color: var(--muted);
}

.capability-card ul {
  display: grid;
  gap: 8px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.capability-card li {
  position: relative;
  padding-left: 16px;
  color: var(--graphite-soft);
  font-size: 14px;
}

.capability-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.buyer-value {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--graphite);
  font-size: 14px;
  font-weight: 800;
}

.systems-section {
  background: var(--paper);
}

.systems-list {
  display: grid;
  gap: 10px;
}

.system-row {
  display: grid;
  grid-template-columns: 1fr minmax(170px, 0.25fr) 1.6fr;
  gap: 22px;
  align-items: center;
  min-height: 96px;
  padding: 22px;
}

.system-row p {
  margin: 0;
  color: var(--muted);
}

.stage-pill {
  justify-self: start;
  padding: 7px 10px;
  border: 1px solid rgba(79, 166, 106, 0.38);
  border-radius: 999px;
  color: var(--green);
  font-size: 12px;
  font-weight: 800;
}

.review-section {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(420px, 1.22fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: start;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(247, 248, 245, 0.78)),
    linear-gradient(90deg, rgba(56, 185, 200, 0.1), transparent 48%);
  border-block: 1px solid var(--line);
}

.review-copy {
  position: sticky;
  top: 112px;
}

.review-copy p:not(.eyebrow) {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
}

.review-preview {
  display: grid;
  gap: 18px;
}

.review-items {
  display: grid;
  gap: 1px;
  background: rgba(247, 248, 245, 0.1);
}

.review-card {
  display: grid;
  grid-template-columns: 38px minmax(0, 0.7fr) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-height: 78px;
  padding: 16px 20px;
  background:
    linear-gradient(90deg, rgba(56, 185, 200, 0.08), transparent),
    var(--graphite);
}

.review-card p {
  margin: 0;
  color: rgba(247, 248, 245, 0.68);
  font-size: 14px;
}

.review-card h3 {
  color: var(--paper-strong);
  font-size: 15px;
  line-height: 1.2;
}

.small-marker {
  width: 28px;
  height: 28px;
  flex-basis: 28px;
  background:
    radial-gradient(circle at 13px 13px, var(--green) 0 3px, transparent 4px),
    radial-gradient(circle at 27px 13px, var(--amber) 0 3px, transparent 4px),
    radial-gradient(circle at 20px 28px, var(--cyan) 0 3px, transparent 4px),
    linear-gradient(64deg, transparent 0 43%, rgba(17, 19, 19, 0.42) 44% 48%, transparent 49%),
    linear-gradient(116deg, transparent 0 43%, rgba(17, 19, 19, 0.36) 44% 48%, transparent 49%),
    rgba(247, 248, 245, 0.82);
}

.review-console {
  overflow: hidden;
  border: 1px solid rgba(17, 19, 19, 0.14);
  border-radius: var(--radius);
  background: var(--graphite);
  color: var(--paper-strong);
  box-shadow: 0 28px 80px rgba(17, 19, 19, 0.18);
}

.console-header {
  display: grid;
  gap: 7px;
  padding: 20px;
  border-bottom: 1px solid rgba(247, 248, 245, 0.12);
}

.console-header span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.console-header strong {
  color: var(--paper-strong);
  font-size: 22px;
  line-height: 1.12;
}

.review-console ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 1px 0 0;
  background: rgba(247, 248, 245, 0.1);
  list-style: none;
}

.review-console li {
  display: grid;
  gap: 6px;
  min-height: 86px;
  align-items: center;
  padding: 16px 20px 18px;
  background:
    linear-gradient(135deg, rgba(79, 166, 106, 0.1), transparent 58%),
    var(--graphite-soft);
}

.review-console li span {
  color: rgba(247, 248, 245, 0.55);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.review-console li strong {
  color: var(--paper-strong);
  font-size: 16px;
  line-height: 1.25;
}

.sample-review {
  display: grid;
  gap: 14px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.7);
}

.sample-review-copy {
  display: grid;
  gap: 8px;
  max-width: 860px;
}

.sample-review-copy h3 {
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.08;
}

.sample-review-copy p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.sample-artifact {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.sample-artifact-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr) minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  min-height: 76px;
  padding: 16px 18px;
  background:
    linear-gradient(90deg, rgba(56, 185, 200, 0.06), transparent 32%),
    rgba(255, 255, 255, 0.82);
}

.sample-artifact-row span {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.sample-artifact-row p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.sample-artifact-row strong {
  color: var(--graphite);
  font-size: 14px;
  line-height: 1.25;
}

.model-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1.2fr);
  gap: clamp(28px, 5vw, 78px);
  background: var(--graphite);
  color: var(--paper-strong);
}

.model-copy {
  align-self: start;
  position: sticky;
  top: 112px;
}

.model-copy p {
  color: rgba(247, 248, 245, 0.72);
}

.model-steps {
  display: grid;
  gap: 12px;
}

.step-card {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 18px;
  align-items: start;
  min-height: 130px;
  padding: 22px;
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(255, 255, 255, 0.15);
}

.system-marker {
  position: relative;
  display: inline-flex;
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  border: 1px solid rgba(17, 19, 19, 0.12);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 15px 15px, var(--green) 0 4px, transparent 5px),
    radial-gradient(circle at 33px 15px, var(--amber) 0 4px, transparent 5px),
    radial-gradient(circle at 24px 34px, var(--cyan) 0 4px, transparent 5px),
    linear-gradient(64deg, transparent 0 43%, rgba(17, 19, 19, 0.42) 44% 48%, transparent 49%),
    linear-gradient(116deg, transparent 0 43%, rgba(17, 19, 19, 0.36) 44% 48%, transparent 49%),
    rgba(247, 248, 245, 0.82);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.38);
}

.step-card .system-marker {
  border-color: rgba(247, 248, 245, 0.18);
  background:
    radial-gradient(circle at 15px 15px, var(--green) 0 4px, transparent 5px),
    radial-gradient(circle at 33px 15px, var(--amber) 0 4px, transparent 5px),
    radial-gradient(circle at 24px 34px, var(--cyan) 0 4px, transparent 5px),
    linear-gradient(64deg, transparent 0 43%, rgba(247, 248, 245, 0.5) 44% 48%, transparent 49%),
    linear-gradient(116deg, transparent 0 43%, rgba(247, 248, 245, 0.42) 44% 48%, transparent 49%),
    rgba(247, 248, 245, 0.08);
}

.step-card p {
  margin: 10px 0 0;
  color: rgba(247, 248, 245, 0.68);
}

.trust-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 5vw, 80px);
  background: var(--paper-strong);
}

.trust-panel {
  align-self: center;
}

.trust-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.trust-list li {
  min-height: 68px;
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--graphite);
  font-weight: 800;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
  border-top: 1px solid var(--line);
}

.contact-section h2 {
  max-width: 850px;
}

.contact-section p {
  max-width: 760px;
}

.contact-actions {
  display: grid;
  gap: 12px;
  min-width: min(100%, 360px);
}

.contact-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.contact-links {
  display: grid;
  gap: 10px;
  margin-top: 4px;
}

.contact-links a {
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(56, 185, 200, 0.08), transparent),
    rgba(255, 255, 255, 0.68);
  text-decoration: none;
}

.contact-links span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.contact-links strong {
  color: var(--graphite);
  font-size: 15px;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  padding: 46px clamp(20px, 5vw, 72px);
  background: var(--graphite);
  color: rgba(247, 248, 245, 0.8);
}

.site-footer p {
  max-width: 360px;
  margin: 14px 0 0;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-footer a {
  color: rgba(247, 248, 245, 0.82);
  text-decoration: none;
}

.legal-page {
  background: var(--paper-strong);
}

.legal-header {
  position: static;
}

.legal-shell {
  width: min(820px, calc(100% - 40px));
  margin: 0 auto;
  padding: 76px 0 120px;
}

.legal-shell h1 {
  font-size: clamp(42px, 7vw, 74px);
}

.legal-shell h2 {
  margin-top: 40px;
  font-size: 24px;
}

.legal-shell p {
  color: var(--muted);
  font-size: 18px;
}

.legal-updated {
  margin-top: 46px;
  font-size: 14px !important;
}

@media (max-width: 1280px) {
  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 900px) {
  .site-header {
    align-items: flex-start;
  }

  .site-nav {
    display: none;
  }

  .hero,
  .model-section,
  .trust-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 520px;
  }

  .model-copy {
    position: static;
  }

  .system-row {
    grid-template-columns: 1fr;
  }

  .contact-actions {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 68px;
    padding: 14px 18px;
  }

  .brand img {
    width: 138px;
    height: auto;
  }

  .nav-cta {
    min-height: 38px;
    padding-inline: 12px;
  }

  h1 {
    font-size: 42px;
  }

  h2 {
    font-size: 34px;
  }

  .proof-strip,
  .capability-grid {
    grid-template-columns: 1fr;
  }

  .capability-card {
    min-height: auto;
  }

  .hero-visual {
    min-height: 450px;
  }

  .visual-card {
    width: min(210px, 58%);
  }

  .visual-card-one {
    left: 14px;
    top: 18px;
  }

  .visual-card-two {
    right: 14px;
  }

  .visual-card-three {
    left: 18px;
    bottom: 18px;
  }

  .step-card {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* Modern brand layer */
body {
  background:
    linear-gradient(120deg, rgba(56, 185, 200, 0.08), transparent 28%),
    linear-gradient(300deg, rgba(197, 139, 54, 0.08), transparent 34%),
    var(--paper);
}

.site-header {
  background: rgba(247, 248, 245, 0.9);
}

.site-header::before {
  content: "";
  position: absolute;
  left: clamp(20px, 5vw, 72px);
  right: clamp(20px, 5vw, 72px);
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--green), var(--cyan), var(--amber));
  opacity: 0.42;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(247, 248, 245, 0.97) 0%, rgba(247, 248, 245, 0.86) 58%, rgba(28, 34, 32, 0.08) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(17, 19, 19, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 19, 19, 0.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.92), transparent 88%);
}

.hero::after {
  content: "";
  position: absolute;
  right: clamp(20px, 5vw, 72px);
  bottom: 42px;
  width: min(520px, 38vw);
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(56, 185, 200, 0.9), rgba(197, 139, 54, 0.86));
}

h1,
h2 {
  text-wrap: balance;
}

.nav-cta,
.button {
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease, border-color 180ms ease;
}

.nav-cta {
  box-shadow: 0 10px 30px rgba(17, 19, 19, 0.18);
}

.nav-cta:hover,
.nav-cta:focus-visible,
.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 16px 34px rgba(17, 19, 19, 0.16);
}

.button.primary {
  background: linear-gradient(135deg, var(--graphite), #101413);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.66);
}

.proof-strip li {
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.5)),
    linear-gradient(90deg, rgba(56, 185, 200, 0.08), transparent);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.hero-metrics div {
  display: grid;
  gap: 6px;
  min-height: 82px;
  padding: 16px;
  background: rgba(255, 255, 255, 0.76);
}

.hero-metrics span {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.hero-metrics strong {
  color: var(--graphite);
  font-size: 16px;
  font-weight: 800;
}

.hero-visual {
  background:
    linear-gradient(145deg, rgba(18, 22, 21, 0.98), rgba(33, 43, 39, 0.94) 48%, rgba(237, 240, 233, 0.72) 100%);
  box-shadow: 0 32px 90px rgba(17, 19, 19, 0.22);
}

.hero-visual::before {
  background-image:
    linear-gradient(rgba(247, 248, 245, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(247, 248, 245, 0.08) 1px, transparent 1px);
}

.hero-visual::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  height: 10px;
  border-radius: 999px;
  background:
    linear-gradient(90deg, var(--green) 0 22%, var(--cyan) 22% 68%, var(--amber) 68% 100%);
  opacity: 0.58;
}

.visual-topline {
  position: absolute;
  left: 24px;
  right: 24px;
  top: 22px;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.visual-topline span {
  padding: 7px 9px;
  border: 1px solid rgba(247, 248, 245, 0.14);
  border-radius: 999px;
  background: rgba(247, 248, 245, 0.08);
  color: rgba(247, 248, 245, 0.8);
  font-size: 11px;
  font-weight: 800;
}

.visual-card {
  background: rgba(247, 248, 245, 0.84);
  box-shadow: 0 18px 42px rgba(17, 19, 19, 0.16);
}

.visual-card-one {
  top: 76px;
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  padding: 1px clamp(20px, 5vw, 72px);
  background: var(--graphite);
}

.signal-band div {
  display: grid;
  gap: 10px;
  min-height: 150px;
  padding: clamp(22px, 4vw, 34px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.075), rgba(255, 255, 255, 0.025)),
    var(--graphite);
}

.signal-band span {
  color: var(--cyan);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.signal-band strong {
  max-width: 460px;
  color: var(--paper-strong);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.18;
}

.capability-grid {
  counter-reset: capability;
}

.capability-card {
  position: relative;
  overflow: hidden;
  box-shadow: 0 14px 44px rgba(17, 19, 19, 0.06);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.capability-card::before {
  counter-increment: capability;
  content: none;
}

.capability-card > .system-marker {
  margin-bottom: 22px;
}

.capability-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--green), var(--cyan), var(--amber));
  opacity: 0.72;
}

.capability-card:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 185, 200, 0.44);
  box-shadow: 0 24px 60px rgba(17, 19, 19, 0.1);
}

.system-row {
  background:
    linear-gradient(90deg, rgba(56, 185, 200, 0.08), transparent 30%),
    var(--paper-strong);
  box-shadow: 0 12px 34px rgba(17, 19, 19, 0.045);
}

.trust-list li {
  box-shadow: 0 12px 34px rgba(17, 19, 19, 0.045);
}

.concept-page {
  background:
    linear-gradient(120deg, rgba(56, 185, 200, 0.12), transparent 30%),
    linear-gradient(300deg, rgba(79, 166, 106, 0.12), transparent 32%),
    var(--paper);
}

.concept-shell {
  padding: clamp(54px, 8vw, 96px) clamp(20px, 5vw, 72px) clamp(90px, 12vw, 140px);
}

.concept-heading {
  max-width: 850px;
  margin-bottom: 42px;
}

.concept-heading h1 {
  font-size: clamp(42px, 7vw, 82px);
}

.concept-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
}

.logo-concept-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.logo-concept-card {
  position: relative;
  display: grid;
  gap: 18px;
  padding: clamp(18px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 22px 64px rgba(17, 19, 19, 0.08);
}

.selected-concept {
  border-color: rgba(56, 185, 200, 0.72);
  box-shadow: 0 26px 76px rgba(56, 185, 200, 0.16);
}

.selected-badge {
  position: absolute;
  right: 28px;
  top: 28px;
  z-index: 2;
  padding: 8px 10px;
  border-radius: 999px;
  background: var(--graphite);
  color: var(--paper-strong);
  font-size: 12px;
  font-weight: 900;
}

.logo-concept-card.dark-card {
  background: var(--graphite);
  color: var(--paper-strong);
  border-color: rgba(247, 248, 245, 0.16);
}

.logo-concept-card img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
}

.logo-concept-card h2 {
  font-size: clamp(26px, 3vw, 38px);
}

.logo-concept-card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.logo-concept-card.dark-card p {
  color: rgba(247, 248, 245, 0.72);
}

@media (max-width: 900px) {
  .signal-band,
  .review-section,
  .logo-concept-grid {
    grid-template-columns: 1fr;
  }

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

  .review-copy {
    position: static;
  }
}

@media (max-width: 640px) {
  .visual-card-one {
    top: 70px;
  }

  .visual-topline {
    left: 14px;
    right: 14px;
    top: 14px;
  }

  .review-card,
  .review-console li {
    grid-template-columns: 1fr;
  }

  .review-console ul {
    grid-template-columns: 1fr;
  }

  .sample-artifact-row {
    grid-template-columns: 1fr;
    gap: 8px;
    min-height: auto;
  }
}