:root {
  --ink: #0b1f3a;
  --navy: #06264c;
  --blue: #0d4f91;
  --cyan: #13a7c9;
  --aqua: #65d6df;
  --muted: #5b6a7e;
  --line: #dbe5ef;
  --pale: #f5f9fc;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(6, 38, 76, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.6;
}

img,
svg {
  display: block;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(219, 229, 239, 0.75);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 172px;
}

.brand img {
  width: clamp(168px, 18vw, 250px);
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #263f5e;
  font-size: 0.94rem;
  font-weight: 600;
}

.site-nav a {
  transition: color 160ms ease;
}

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

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 10px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--navy);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: clamp(36px, 6vw, 76px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(38px, 5vw, 70px) clamp(20px, 5vw, 72px) clamp(40px, 5vw, 64px);
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: -30% -10% auto 34%;
  height: 78%;
  content: "";
  background:
    radial-gradient(circle at 54% 42%, rgba(101, 214, 223, 0.25), transparent 32%),
    radial-gradient(circle at 78% 14%, rgba(13, 79, 145, 0.16), transparent 26%);
  pointer-events: none;
}

.hero-content,
.hero-visual {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 740px;
  margin-bottom: 24px;
  color: var(--navy);
  font-size: clamp(2.45rem, 4.05vw, 3.95rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  color: var(--navy);
  font-size: clamp(2rem, 3.6vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  color: var(--navy);
  font-size: 1.2rem;
  line-height: 1.25;
}

.hero-copy {
  max-width: 760px;
  margin-bottom: 26px;
  color: #324a66;
  font-size: 1.04rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--blue));
  box-shadow: 0 16px 34px rgba(6, 38, 76, 0.2);
}

.button-secondary {
  color: var(--navy);
  background: var(--white);
  border-color: #b9c9d9;
}

.hero-visual {
  min-height: 540px;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
  border: 1px solid rgba(185, 201, 217, 0.72);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.visual-card {
  position: absolute;
  width: min(260px, 48%);
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(219, 229, 239, 0.95);
  border-radius: 8px;
  box-shadow: 0 18px 42px rgba(6, 38, 76, 0.14);
  backdrop-filter: blur(16px);
}

.visual-card span {
  display: block;
  margin-bottom: 4px;
  color: var(--blue);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.visual-card strong {
  display: block;
  color: var(--navy);
  font-size: 0.95rem;
  line-height: 1.35;
}

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

.visual-card-bottom {
  left: 28px;
  bottom: 28px;
}

.section {
  padding: clamp(70px, 9vw, 118px) clamp(20px, 5vw, 72px);
}

.section-blue {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(6, 38, 76, 0.96), rgba(9, 67, 117, 0.96)),
    radial-gradient(circle at 20% 10%, rgba(101, 214, 223, 0.34), transparent 30%);
}

.section-blue .eyebrow,
.section-blue h2,
.section-blue h3 {
  color: var(--white);
}

.section-intro {
  max-width: 970px;
  margin-bottom: 42px;
}

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

.section-intro p:not(.eyebrow),
.contact-copy p {
  color: var(--muted);
  font-size: 1.04rem;
}

.section-blue .section-intro p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.78);
}

.feature-grid,
.solution-grid,
.validation-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.feature-card,
.solution-card,
.validation-grid article {
  border-radius: var(--radius);
}

.feature-card {
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.card-icon {
  display: grid;
  width: 46px;
  height: 46px;
  margin-bottom: 22px;
  place-items: center;
  color: var(--aqua);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
}

.card-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.feature-card ul {
  display: grid;
  gap: 12px;
  margin: 0;
  padding-left: 18px;
  color: rgba(255, 255, 255, 0.78);
}

.solution-card {
  min-height: 245px;
  padding: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(19, 167, 201, 0.06)),
    var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(6, 38, 76, 0.07);
}

.solution-card span {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 800;
}

.solution-card p,
.validation-grid p {
  color: var(--muted);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.82fr) minmax(320px, 1.18fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: start;
  background: var(--pale);
}

.application-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.application-list div {
  min-height: 72px;
  display: flex;
  align-items: center;
  padding: 18px 20px;
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 700;
}

.validation {
  background:
    linear-gradient(180deg, #ffffff 0%, #f6fbff 100%);
}

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

.validation-grid article {
  min-height: 188px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
}

.publication-card {
  grid-column: 1 / -1;
}

.publication-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.publication-list a {
  display: grid;
  gap: 2px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.publication-list strong {
  color: var(--navy);
  font-size: 1rem;
}

.publication-list span {
  color: var(--muted);
  font-size: 0.92rem;
}

.publication-list a:hover strong {
  color: var(--blue);
}

.customers {
  padding-top: 74px;
  padding-bottom: 74px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.partner-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.partner-band span {
  display: grid;
  min-height: 96px;
  place-items: center;
  padding: 20px;
  color: #39536f;
  background: var(--white);
  text-align: center;
  font-weight: 800;
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(320px, 1.15fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: start;
  background:
    radial-gradient(circle at 12% 16%, rgba(19, 167, 201, 0.12), transparent 24%),
    var(--white);
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: clamp(22px, 4vw, 34px);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

label {
  display: grid;
  gap: 8px;
}

label span {
  color: #334b68;
  font-size: 0.9rem;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #c8d5e2;
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  background: #fbfdff;
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(19, 167, 201, 0.2);
  border-color: var(--cyan);
}

.full {
  grid-column: 1 / -1;
}

.form-note {
  grid-column: 1 / -1;
  margin: -4px 0 0;
  color: var(--blue);
  font-weight: 700;
}

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

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.78);
  background: var(--navy);
}

.site-footer strong,
.site-footer a {
  color: var(--white);
}

.site-footer p {
  margin: 6px 0 0;
}

.thank-you-page {
  min-height: 100vh;
  padding: clamp(28px, 5vw, 72px);
  background:
    radial-gradient(circle at 78% 8%, rgba(19, 167, 201, 0.15), transparent 28%),
    linear-gradient(180deg, #ffffff, #f6fbff);
}

.thank-you-panel {
  max-width: 780px;
  margin-top: clamp(70px, 12vw, 150px);
}

.thank-you-panel h1 {
  max-width: 760px;
}

.thank-you-panel p:not(.eyebrow) {
  max-width: 620px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 1.08rem;
}

@media (max-width: 980px) {
  .hero,
  .split-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 420px;
  }

  .feature-grid,
  .solution-grid,
  .validation-grid,
  .partner-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .publication-card {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .site-header {
    padding: 14px 20px;
  }

  .brand {
    min-width: 0;
  }

  .brand img {
    width: min(52vw, 210px);
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 20px;
    right: 20px;
    top: calc(100% + 8px);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 12px;
    border-radius: 8px;
  }

  .site-nav a:hover {
    background: var(--pale);
  }

  h1 {
    font-size: clamp(2.3rem, 12vw, 3.7rem);
    line-height: 1.02;
  }

  h2 {
    font-size: clamp(1.8rem, 9vw, 2.7rem);
  }

  .hero {
    padding-top: 46px;
  }

  .button {
    width: 100%;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 330px;
  }

  .visual-card {
    position: static;
    width: 100%;
    margin-top: 12px;
  }

  .feature-grid,
  .solution-grid,
  .validation-grid,
  .application-list,
  .partner-band,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .publication-card {
    grid-column: auto;
  }

  .solution-card,
  .feature-card {
    min-height: auto;
    padding: 24px;
  }

  .site-footer {
    display: block;
  }

  .site-footer a {
    display: inline-flex;
    margin-top: 18px;
  }
}