:root {
  --ink: #0e1b24;
  --steel: #263844;
  --steel-strong: #111f29;
  --steel-soft: #e6edf0;
  --muted: #596b76;
  --line: #d6e1e6;
  --panel: #f3f6f5;
  --panel-strong: #e7eef1;
  --surface: #f8faf9;
  --white: #ffffff;
  --accent: #087f5b;
  --accent-dark: #056548;
  --accent-soft: #dff3ec;
  --warning: #b64a10;
  --shadow: 0 18px 45px rgba(13, 31, 43, 0.13);
  --shadow-strong: 0 24px 70px rgba(10, 26, 36, 0.2);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
textarea {
  font: inherit;
}

:focus-visible {
  outline: 3px solid rgba(11, 138, 90, 0.35);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 0 32px;
  border-bottom: 1px solid var(--line);
  background: rgba(248, 250, 249, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 26px rgba(10, 26, 36, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 900;
}

.brand-symbol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  background: var(--steel-strong);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06), 0 10px 24px rgba(10, 26, 36, 0.16);
}

.brand-symbol svg {
  width: 46px;
  height: 34px;
}

.brand-flow,
.brand-bar {
  fill: none;
  stroke: var(--white);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-heat,
.brand-node {
  stroke: var(--accent);
}

.brand-node {
  fill: var(--accent);
}

.brand-bar {
  opacity: 0.58;
}

.brand-wordmark {
  display: grid;
  gap: 1px;
  line-height: 1;
}

.brand-name {
  font-size: 21px;
  letter-spacing: 0;
}

.brand-line {
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

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

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.header-cta,
.button-primary {
  color: var(--white);
  background: var(--accent);
  box-shadow: 0 12px 24px rgba(8, 127, 91, 0.22);
}

.header-cta:hover,
.button-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.button-secondary {
  color: var(--ink);
  border-color: #b9c7cf;
  background: var(--white);
}

.button-secondary:hover {
  border-color: var(--ink);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 520px) minmax(420px, 560px);
  gap: 56px;
  align-items: center;
  justify-content: center;
  max-width: none;
  min-height: auto;
  margin: 0;
  padding: 56px 32px 42px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(90deg, rgba(17, 31, 41, 0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(17, 31, 41, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.7;
  pointer-events: none;
}

.hero > * {
  position: relative;
  z-index: 1;
}

.hero-copy,
.page-hero-copy {
  min-width: 0;
}

.eyebrow,
.section-kicker {
  margin: 0 0 12px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 22px;
  font-size: 58px;
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: 34px;
  line-height: 1.14;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 19px;
  line-height: 1.24;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 720px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.hero-proof li {
  min-height: 74px;
  padding: 13px 14px;
  border-left: 3px solid var(--accent);
  background: rgba(255, 255, 255, 0.72);
}

.hero-proof strong,
.hero-proof span {
  display: block;
}

.hero-proof strong {
  margin-bottom: 4px;
  font-size: 14px;
}

.hero-proof span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.hero-media {
  position: relative;
  overflow: hidden;
  align-self: start;
  margin: 0;
  padding: 0;
  border: 1px solid rgba(17, 31, 41, 0.22);
  border-radius: var(--radius);
  background: var(--steel-strong);
  box-shadow: var(--shadow-strong);
}

.hero-media::before {
  display: block;
  height: 34px;
  content: "";
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px 14px),
    var(--steel-strong);
  background-size: 14px 100%, auto;
}

.hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  border-radius: 0;
  object-fit: cover;
}

.hero-media figcaption {
  margin: 0;
  padding: 12px 14px;
  color: #c2d0d8;
  font-size: 13px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: var(--max);
  margin: 0 auto 36px;
  padding: 0 32px;
}

.trust-strip div {
  min-height: 112px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 0;
  color: var(--white);
  background: var(--steel);
}

.trust-strip div:first-child {
  border-left: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius) 0 0 var(--radius);
}

.trust-strip div:last-child {
  border-radius: 0 var(--radius) var(--radius) 0;
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip strong {
  margin-bottom: 8px;
}

.trust-strip span {
  color: #bfd0d8;
  font-size: 14px;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 74px 32px;
}

.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  border-top: 1px solid var(--line);
}

.section-copy {
  color: var(--muted);
  font-size: 17px;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.section-heading p {
  color: var(--muted);
}

.application-grid,
.evidence-grid,
.knowledge-grid,
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.application-grid article,
.evidence-grid article,
.scenario-grid article,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 34px rgba(10, 26, 36, 0.05);
}

.application-grid article,
.evidence-grid article,
.scenario-grid article {
  padding: 24px;
}

.application-grid span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.application-grid p,
.evidence-grid p,
.scenario-grid p {
  color: var(--muted);
}

.engineering-section {
  border-top: 1px solid var(--line);
}

.evidence-grid {
  grid-template-columns: repeat(4, 1fr);
}

.evidence-grid article {
  min-height: 250px;
}

.evidence-grid span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--warning);
  font-weight: 900;
}

.capability-cta {
  margin-top: 24px;
}

.knowledge-section {
  max-width: none;
  background: var(--steel-strong);
}

.knowledge-section .section-heading {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
  color: var(--white);
}

.knowledge-section .section-heading p {
  color: #bfd0d8;
}

.knowledge-grid {
  max-width: var(--max);
  margin: 0 auto;
}

.knowledge-grid a {
  display: grid;
  min-height: 194px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
}

.knowledge-grid a:hover {
  border-color: rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.knowledge-grid span {
  margin-bottom: 12px;
  color: #64d4aa;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.knowledge-grid strong {
  margin-bottom: 10px;
  font-size: 18px;
  line-height: 1.24;
}

.knowledge-grid p {
  margin: 0;
  color: #bfd0d8;
  font-size: 14px;
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 580px) minmax(360px, 520px);
  gap: 48px;
  align-items: center;
  justify-content: center;
  padding: 58px 32px 48px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.page-hero-copy {
  max-width: 620px;
}

.review-note {
  margin-top: 22px;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  color: var(--steel);
  background: var(--white);
  font-weight: 800;
}

.answer-section {
  padding-top: 68px;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.answer-grid article {
  min-height: 230px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 34px rgba(10, 26, 36, 0.05);
}

.answer-grid p {
  color: var(--muted);
}

.checklist-section {
  max-width: none;
  background: var(--panel);
}

.checklist-section > * {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.evidence-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 0;
  list-style: none;
}

.evidence-list li {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--steel);
  font-weight: 800;
}

.related-section {
  padding-top: 46px;
}

.related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.related-links a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--steel);
  font-weight: 800;
}

.related-links a:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.product-visuals {
  padding-top: 18px;
}

.product-visual-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.product-visual-grid article {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 34px rgba(10, 26, 36, 0.05);
}

.product-visual-grid img,
.scenario-grid img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--panel);
}

.scenario-grid img {
  margin: -24px -24px 20px;
  width: calc(100% + 48px);
  max-width: none;
  border-bottom: 1px solid var(--line);
}

.product-visual-grid div {
  padding: 20px;
}

.product-visual-grid span {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.product-visual-grid p {
  color: var(--muted);
}

.parameters,
.process,
.faq-section {
  max-width: none;
  background: var(--panel);
}

.parameters > *,
.process > *,
.faq-section > * {
  max-width: var(--max);
  margin-left: auto;
  margin-right: auto;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 14px 38px rgba(10, 26, 36, 0.06);
}

.parameter-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

.parameter-table th,
.parameter-table td {
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.parameter-table tr:last-child th,
.parameter-table tr:last-child td {
  border-bottom: 0;
}

.parameter-table th {
  width: 260px;
  background: var(--panel-strong);
}

.parameter-table td {
  color: var(--muted);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  padding: 0;
  list-style: none;
}

.process-steps li {
  min-height: 210px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 34px rgba(10, 26, 36, 0.05);
}

.process-steps span {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--warning);
  font-weight: 900;
}

.process-steps strong {
  display: block;
  margin-bottom: 10px;
}

.process-steps p {
  color: var(--muted);
  font-size: 14px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

.faq-item {
  padding: 0 20px;
}

.faq-item summary {
  min-height: 62px;
  padding: 18px 0;
  font-weight: 800;
  cursor: pointer;
}

.faq-item p {
  margin-bottom: 20px;
  color: var(--muted);
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.contact-copy > p {
  color: var(--muted);
}

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

.contact-list li {
  display: grid;
  gap: 4px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

.contact-list strong {
  font-size: 13px;
  color: var(--muted);
}

.inquiry-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.inquiry-form label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 800;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 13px;
  color: var(--ink);
  background: var(--white);
  font-weight: 400;
}

.inquiry-form textarea {
  resize: vertical;
}

.inquiry-form .button {
  width: 100%;
}

.field-error {
  min-height: 18px;
  color: #b42318;
  font-size: 13px;
  font-weight: 700;
}

.form-status {
  display: none;
  padding: 13px;
  border-radius: 6px;
  background: #e9f8f1;
  color: #095b3d;
  font-weight: 800;
}

.form-status.is-visible {
  display: block;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 32px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  font-weight: 800;
  color: var(--ink);
}

@media (max-width: 1040px) {
  .hero,
  .page-hero,
  .split,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 44px;
  }

  .trust-strip,
  .application-grid,
  .evidence-grid,
  .knowledge-grid,
  .answer-grid,
  .product-visual-grid,
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: auto auto;
    padding: 0 18px;
  }

  .nav-toggle {
    display: block;
    justify-self: end;
  }

  .site-nav,
  .header-cta {
    display: none;
  }

  .site-header.nav-open .site-nav {
    display: grid;
    grid-column: 1 / -1;
    gap: 0;
    padding: 8px 0 16px;
    border-top: 1px solid var(--line);
  }

  .site-header.nav-open .site-nav a {
    padding: 12px 0;
  }

  .site-header.nav-open .header-cta {
    display: inline-flex;
    grid-column: 1 / -1;
    margin-bottom: 16px;
  }

  .hero,
  .page-hero,
  .section {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero,
  .page-hero {
    padding-top: 34px;
    padding-bottom: 22px;
    gap: 22px;
  }

  h1 {
    margin-bottom: 16px;
    font-size: 32px;
    line-height: 1.06;
  }

  .hero h1,
  .page-hero h1 {
    max-width: 12ch;
  }

  h2 {
    font-size: 28px;
  }

  .hero-lede {
    font-size: 16px;
    line-height: 1.55;
  }

  .hero-actions,
  .site-footer {
    flex-direction: column;
  }

  .hero-actions {
    gap: 10px;
    margin-top: 20px;
  }

  .hero-proof {
    display: none;
  }

  .hero-media::before {
    height: 24px;
  }

  .hero-media img {
    aspect-ratio: 16 / 9;
  }

  .hero-media figcaption {
    display: none;
  }

  .button {
    width: 100%;
  }

  .trust-strip,
  .application-grid,
  .evidence-grid,
  .knowledge-grid,
  .answer-grid,
  .evidence-list,
  .product-visual-grid,
  .scenario-grid,
  .process-steps {
    grid-template-columns: 1fr;
    padding-left: 18px;
    padding-right: 18px;
  }

  .trust-strip div,
  .trust-strip div:first-child,
  .trust-strip div:last-child {
    border: 1px solid var(--line);
    border-radius: var(--radius);
  }

  .contact-section {
    gap: 28px;
  }

  .inquiry-form {
    padding: 20px;
  }
}

@media (max-width: 420px) {
  .brand-symbol {
    width: 52px;
    height: 40px;
  }

  .brand-symbol svg {
    width: 42px;
    height: 32px;
  }

  .brand-name {
    font-size: 19px;
  }

  .brand-line {
    display: none;
  }
}