@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-soft: #eef3f7;
  --ink: #101820;
  --muted: #586675;
  --line: #d8e0e7;
  --navy: #0d1b2a;
  --blue: #0067b1;
  --cyan: #00a7c4;
  --accent: #44c3d4;
  --shadow: 0 24px 60px rgba(13, 27, 42, 0.12);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

.nhplogostyle {
  width:60px;
  height:60px;
  vertical-align: middle;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

a {
  color: inherit;
}

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

.container {
  width: min(calc(100% - 40px), var(--container));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(216, 224, 231, 0.78);
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(16px);
}

.nav-wrap {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.brand-name {
  font-family: "Space Grotesk", sans-serif;
  font-size: 3.0rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: darkgreen;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  color: #344150;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
}

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

.site-nav .nav-edge {
  color: var(--blue);
  white-space: nowrap;
}

.site-nav .nav-cta {
  padding: 10px 16px;
  color: white;
  border-radius: 10px;
  background: var(--navy);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 8px;
  background: transparent;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 6px 7px;
  background: var(--ink);
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 88px;
  background:
    radial-gradient(circle at 78% 18%, rgba(0, 167, 196, 0.14), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #f5f8fb 100%);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -20% -160px 45%;
  height: 280px;
  transform: rotate(-8deg);
  background: linear-gradient(90deg, transparent, rgba(0, 103, 177, 0.06), transparent);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 72px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin-top: 0;
  font-family: "Space Grotesk", sans-serif;
  line-height: 1.08;
}

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3.1rem, 6vw, 5.8rem);
  letter-spacing: -0.055em;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.22rem;
  letter-spacing: -0.025em;
}

p {
  margin-top: 0;
}

.hero-lead {
  max-width: 680px;
  margin-bottom: 32px;
  color: var(--muted);
  font-size: 1.16rem;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 11px;
  text-decoration: none;
  font-size: 0.93rem;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

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

.button-primary {
  color: white;
  background: linear-gradient(135deg, var(--blue), #075887);
  box-shadow: 0 8px 24px rgba(0, 103, 177, 0.18);
}

.button-primary:hover {
  box-shadow: 0 12px 32px rgba(0, 103, 177, 0.24);
}

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

.hero-note {
  max-width: 600px;
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: #697684;
  font-size: 0.86rem;
}

.hero-panel {
  position: relative;
  min-height: 480px;
  display: grid;
  place-items: center;
}

.signal {
  position: absolute;
  border: 1px solid rgba(0, 167, 196, 0.18);
  border-radius: 50%;
}

.signal-a {
  width: 430px;
  height: 430px;
}

.signal-b {
  width: 340px;
  height: 340px;
}

.signal-c {
  width: 255px;
  height: 255px;
}

.panel-card {
  position: relative;
  z-index: 3;
  width: min(100%, 500px);
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 24px;
  background: rgba(13, 27, 42, 0.96);
  box-shadow: var(--shadow);
  color: white;
}

.panel-top,
.panel-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-top {
  padding-bottom: 17px;
  border-bottom: 1px solid rgba(255,255,255,.11);
  color: #d7e4ed;
  font-size: 0.84rem;
  font-weight: 600;
}

.status {
  padding: 5px 8px;
  border: 1px solid rgba(68,195,212,.35);
  border-radius: 999px;
  color: #82deea;
  font-size: 0.68rem;
  letter-spacing: .08em;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 22px 0;
}

.metric {
  padding: 12px;
  border-radius: 12px;
  background: rgba(255,255,255,.055);
}

.metric-label {
  display: block;
  margin-bottom: 7px;
  color: #91a6b7;
  font-size: 0.65rem;
}

.metric strong {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.25rem;
}

.mini-chart {
  min-height: 160px;
  display: grid;
  align-items: center;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  background:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.mini-chart path {
  fill: none;
  stroke: #4fd5e6;
  stroke-width: 3;
}

.mini-chart .chart-secondary {
  stroke: #5f84ff;
  stroke-width: 2;
  opacity: .75;
}

.panel-footer {
  padding-top: 16px;
  color: #8fa5b6;
  font-size: .67rem;
}

.trust-strip {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: white;
}

.trust-grid {
  min-height: 74px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  align-items: center;
}

.trust-grid .trust-item {
  padding: 6px 18px;
  border-right: 1px solid var(--line);
  color: #4d5e6c;
  text-align: center;
  font-size: 0.79rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.trust-grid .trust-item:last-child {
  border-right: 0;
}

.trust-item {
  min-height: 74px;
  border-top: 0;
  border-bottom: 0;
  border-left: 0;
  background: transparent;
  font: inherit;
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease;
}

.trust-item:hover,
.trust-item:focus-visible {
  color: var(--blue);
  background: #f5fafd;
  outline: none;
}

.section {
  padding: 112px 0;
}

.section-heading {
  max-width: 840px;
  margin-bottom: 54px;
}

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

.section-heading > p:last-child {
  max-width: 790px;
  font-size: 1.06rem;
}

.section-heading.narrow {
  max-width: 620px;
}

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

.feature-card {
  min-height: 270px;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
  box-shadow: 0 12px 34px rgba(13,27,42,.045);
}

.feature-number {
  margin-bottom: 56px;
  color: var(--cyan);
  font-family: "Space Grotesk", sans-serif;
  font-size: .78rem;
  font-weight: 700;
}

.feature-card p {
  margin-bottom: 0;
  font-size: 0.92rem;
}

.section-dark {
  color: white;
  background:
    radial-gradient(circle at 18% 0%, rgba(0, 167, 196, 0.15), transparent 26%),
    var(--navy);
}

.workflow-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 90px;
  align-items: start;
}

.eyebrow-light {
  color: #6bd6e3;
}

.section-dark .light-copy {
  color: #aab9c6;
  font-size: 1.02rem;
}

.workflow-steps {
  border-top: 1px solid rgba(255,255,255,.14);
}

.workflow-step {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 22px;
  padding: 24px 4px;
  border-bottom: 1px solid rgba(255,255,255,.14);
}

.workflow-step > span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 50%;
  color: #76dce7;
  font-weight: 700;
}

.workflow-step h3 {
  margin-bottom: 6px;
}

.workflow-step p {
  margin-bottom: 0;
  color: #98aab8;
}

.application-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.application-grid article {
  padding-top: 22px;
  border-top: 2px solid var(--ink);
}

.icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 38px;
  border-radius: 12px;
  color: white;
  background: var(--navy);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}

.application-grid p {
  font-size: .94rem;
}

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

.deployment-grid {
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: 90px;
  align-items: center;
}

.deployment-card {
  padding: 10px 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: white;
  box-shadow: 0 14px 45px rgba(13,27,42,.07);
}

.deployment-row {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.deployment-row:last-child {
  border-bottom: 0;
}

.check {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #075887;
  background: #e6f7fa;
  font-weight: 800;
}

.deployment-row strong,
.deployment-row small {
  display: block;
}

.deployment-row small {
  margin-top: 4px;
  color: var(--muted);
}

.statement {
  padding: 72px 0;
  color: white;
  background: linear-gradient(120deg, var(--blue), #075887 62%, #0d1b2a);
}

.statement p {
  max-width: 930px;
  margin: 0;
  color: white;
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.6rem, 3vw, 2.8rem);
  line-height: 1.28;
  letter-spacing: -0.035em;
}

.contact-section {
  background: white;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr .75fr;
  gap: 80px;
  align-items: center;
}

.contact-card {
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}

.contact-card p {
  margin-bottom: 28px;
}

.button.full {
  width: 100%;
}

.contact-note {
  margin: 16px 0 0 !important;
  color: #7a8793 !important;
  font-size: .72rem;
}

footer {
  padding: 50px 0;
  color: #9cadba;
  background: #09131e;
}

.footer-grid {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 36px;
}

.footer-brand {
  color: white;
}

footer p {
  margin: 14px 0 0;
  font-size: .83rem;
}

.footer-right {
  display: flex;
  gap: 28px;
  align-items: center;
  font-size: .79rem;
}

.footer-right a {
  color: white;
  text-decoration: none;
}

@media (max-width: 960px) {
  .hero-grid,
  .workflow-layout,
  .deployment-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 72px;
  }

  .hero-panel {
    min-height: 420px;
  }

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

  .workflow-layout,
  .deployment-grid,
  .contact-grid {
    gap: 48px;
  }

  .site-nav {
    position: absolute;
    top: 76px;
    left: 20px;
    right: 20px;
    display: none;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: white;
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: grid;
  }

  .nav-toggle {
    display: block;
  }
}

@media (max-width: 680px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .section {
    padding: 82px 0;
  }

  h1 {
    font-size: clamp(2.6rem, 15vw, 4.2rem);
  }

  .feature-grid,
  .application-grid {
    grid-template-columns: 1fr;
  }

  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
    padding: 8px 0;
  }

  .trust-grid .trust-item {
    min-height: 52px;
    display: grid;
    place-items: center;
    border-bottom: 1px solid var(--line);
  }

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

  .signal-a {
    width: 330px;
    height: 330px;
  }

  .signal-b {
    width: 270px;
    height: 270px;
  }

  .signal-c {
    width: 205px;
    height: 205px;
  }

  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-right {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }
}

/* ---------------------------------------------------------
   Software screenshot popup
   --------------------------------------------------------- */

.software-popup {
  border: none;
  cursor: pointer;
  font: inherit;
}

.software-popup:hover {
  transform: scale(1.08);
}

.software-modal {
  display: none;
  position: fixed;
  z-index: 1000;
  inset: 0;
  padding: 40px 20px;
  background: rgba(0, 0, 0, 0.75);

  align-items: center;
  justify-content: center;
}

.software-modal.open {
  display: flex;
}

.software-modal-content {
  position: relative;
  width: min(1100px, 95vw);
  max-height: 90vh;

  padding: 24px;

  border-radius: 16px;
  background: white;

  overflow: auto;
}

.software-modal-content h3 {
  margin: 0 40px 20px 0;
}

.software-modal-content img {
  display: block;
  width: 100%;
  height: auto;

  border-radius: 8px;
}

.software-modal-close {
  position: absolute;
  top: 12px;
  right: 16px;

  border: none;
  background: transparent;

  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

.software-hint {
  margin-top: -8px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* ---------------------------------------------------------
   Sonde tool definition
   --------------------------------------------------------- */

.sonde-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 48px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
}

.sonde-flow strong {
  color: var(--cyan);
  font-size: 1.2rem;
}

/* ---------------------------------------------------------
   Formation response information
   --------------------------------------------------------- */

.metric-info {
  width: 100%;
  border: 1px solid transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.metric-info:hover {
  border-color: rgba(79, 213, 230, 0.55);
  background: rgba(255,255,255,.10);
}

.response-modal {
  display: none;
  position: fixed;
  z-index: 1100;
  inset: 0;
  padding: 30px 20px;
  align-items: center;
  justify-content: center;
  background: rgba(9, 19, 30, 0.78);
  backdrop-filter: blur(3px);
}

.response-modal.open {
  display: flex;
}

.response-modal-content {
  position: relative;
  width: min(680px, 94vw);
  max-height: 92vh;
  overflow: auto;
  padding: 38px 40px 30px;
  border-radius: 20px;
  background: white;
  box-shadow: var(--shadow);
}

.response-modal-close {
  position: absolute;
  top: 18px;
  right: 22px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

.response-modal-content h2 {
  margin-bottom: 8px;
  font-size: 2.3rem;
}

.response-modal-content h2 span {
  color: var(--cyan);
}

.response-subtitle {
  margin-bottom: 20px;
  color: var(--blue) !important;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.response-description {
  max-width: 580px;
  color: var(--ink) !important;
  font-size: 1rem;
}

.phase-diagram {
  margin: 24px 0;
}

.phase-diagram svg {
  width: 100%;
  height: auto;
}

.phase-wave {
  fill: none;
  stroke-width: 4;
  stroke-linecap: round;
}

.phase-wave.transmitted {
  stroke: var(--blue);
}

.phase-wave.received {
  stroke: var(--cyan);
  stroke-dasharray: 9 8;
}

.phase-marker {
  stroke: #7c8c99;
  stroke-width: 1.5;
}

.phase-arrow {
  stroke: var(--ink);
  stroke-width: 1.5;
}

.phase-label {
  fill: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-size: 20px;
  font-weight: 600;
}

.phase-legend {
  display: flex;
  justify-content: center;
  gap: 30px;
  font-size: .82rem;
}

.phase-legend span {
  display: flex;
  align-items: center;
  gap: 9px;
}

.legend-line {
  width: 32px;
  height: 3px;
  display: inline-block;
}

.transmitted-line {
  background: var(--blue);
}

.received-line {
  border-top: 3px dashed var(--cyan);
}

.response-takeaway {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 26px;
  padding: 16px 18px;
  border-radius: 12px;
  background: #edf7fb;
}

.response-takeaway p {
  margin: 0;
  color: #344150 !important;
  font-size: .85rem;
}

.response-info-icon {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--blue);
  border-radius: 50%;
  color: var(--blue);
  font-weight: 700;
}

@media (max-width: 680px) {
  .response-modal-content {
    padding: 32px 24px 24px;
  }

  .phase-legend {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }
}

.attenuation-wave {
  stroke: var(--cyan);
  stroke-dasharray: 9 8;
}

.attenuation-marker {
  stroke: var(--ink);
  stroke-width: 1.5;
}

/* ---------------------------------------------------------
   Resistivity concept graphic
   --------------------------------------------------------- */

.resistivity-concept {
  display: grid;
  grid-template-columns: 130px 1fr 130px;
  gap: 24px;
  align-items: center;
  margin: 42px 0 36px;
}

.resistivity-end {
  padding: 22px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f7fafc;
  text-align: center;
}

.resistivity-end strong {
  display: block;
  margin-bottom: 5px;
  color: var(--blue);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.35rem;
}

.resistivity-end span {
  color: var(--muted);
  font-size: .76rem;
}

.resistivity-center {
  text-align: center;
}

.resistivity-arrow {
  position: relative;
  height: 28px;
  margin-bottom: 18px;
}

.arrow-line {
  position: absolute;
  top: 13px;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 3px;
  background: linear-gradient(
    90deg,
    var(--cyan),
    var(--blue)
  );
}

.arrow-line::before {
  content: "";
  position: absolute;
  left: 0;
  top: -5px;
  width: 11px;
  height: 11px;
  border-left: 3px solid var(--cyan);
  border-bottom: 3px solid var(--cyan);
  transform: rotate(45deg);
}

.arrow-line::after {
  content: "";
  position: absolute;
  right: 0;
  top: -5px;
  width: 11px;
  height: 11px;
  border-top: 3px solid var(--blue);
  border-right: 3px solid var(--blue);
  transform: rotate(45deg);
}

.resistivity-equation span,
.resistivity-equation strong {
  display: block;
}

.resistivity-equation span {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: .72rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.resistivity-equation strong {
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
}

@media (max-width: 680px) {

  .resistivity-concept {
    grid-template-columns: 1fr;
  }

  .resistivity-arrow {
    width: 60%;
    margin: 0 auto 18px;
  }

}

.resistivity-scale {
  display: none;
}

/* ---------------------------------------------------------
   Permittivity concept graphic
   --------------------------------------------------------- */

.permittivity-concept {
  display: grid;
  grid-template-columns: 1fr 110px 1fr;
  gap: 22px;
  align-items: center;
  margin: 34px 0 30px;
}

.permittivity-case {
  text-align: center;
}

.permittivity-case strong {
  display: block;
  margin-bottom: 12px;
  color: var(--blue);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
}

.permittivity-case small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: .76rem;
}

.polarization-box {
  min-height: 135px;
  display: grid;
  place-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f7fafc;
}

.polarization-box span {
  color: var(--cyan);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
}

.polarization-high span {
  color: var(--blue);
  font-size: 1.25rem;
}

.field-arrow {
  text-align: center;
}

.field-arrow span {
  display: block;
  margin-bottom: 5px;
  color: var(--muted);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.field-arrow strong {
  color: var(--cyan);
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.3rem;
  font-weight: 500;
}

@media (max-width: 680px) {

  .permittivity-concept {
    grid-template-columns: 1fr;
  }

  .field-arrow {
    transform: rotate(90deg);
    margin: 4px 0;
  }

}

/* ---------------------------------------------------------
   Trust banner information modal
   --------------------------------------------------------- */

.trust-modal {
  display: none;
  position: fixed;
  z-index: 1150;
  inset: 0;
  padding: 30px 20px;
  align-items: center;
  justify-content: center;
  background: rgba(9, 19, 30, 0.78);
  backdrop-filter: blur(3px);
}

.trust-modal.open {
  display: flex;
}

.trust-modal-content {
  position: relative;
  width: min(680px, 94vw);
  max-height: 92vh;
  overflow: auto;
  padding: 38px 40px 30px;
  border-radius: 20px;
  background: white;
  box-shadow: var(--shadow);
}

.trust-modal-close {
  position: absolute;
  top: 18px;
  right: 22px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

.trust-modal-content h2 {
  margin-bottom: 10px;
  font-size: 2.3rem;
}

.trust-modal-lead {
  margin-bottom: 20px;
  color: var(--blue) !important;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.02rem;
  font-weight: 600;
}

.trust-modal-description p {
  color: var(--ink) !important;
  font-size: 1rem;
}

.trust-takeaway {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 26px;
  padding: 16px 18px;
  border-radius: 12px;
  background: #edf7fb;
}

.trust-takeaway p {
  margin: 0;
  color: #344150 !important;
  font-size: .88rem;
}

@media (max-width: 680px) {
  .trust-modal-content {
    padding: 32px 24px 24px;
  }
}

/* ---------------------------------------------------------
   Technology process cards and information modal
   --------------------------------------------------------- */

.feature-card-info {
  width: 100%;
  color: var(--ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.feature-card-info:hover,
.feature-card-info:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(0, 103, 177, 0.35);
  box-shadow: 0 18px 42px rgba(13,27,42,.09);
  outline: none;
}

.feature-more {
  display: inline-block;
  margin-top: 26px;
  color: var(--blue);
  font-size: .78rem;
  font-weight: 700;
}

.technology-modal {
  display: none;
  position: fixed;
  z-index: 1160;
  inset: 0;
  padding: 30px 20px;
  align-items: center;
  justify-content: center;
  background: rgba(9, 19, 30, 0.78);
  backdrop-filter: blur(3px);
}

.technology-modal.open {
  display: flex;
}

.technology-modal-content {
  position: relative;
  width: min(680px, 94vw);
  max-height: 92vh;
  overflow: auto;
  padding: 38px 40px 30px;
  border-radius: 20px;
  background: white;
  box-shadow: var(--shadow);
}

.technology-modal-close {
  position: absolute;
  top: 18px;
  right: 22px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

.technology-modal-content h2 {
  margin-bottom: 24px;
  font-size: 2.3rem;
}

.technology-modal-section h3 {
  margin-bottom: 10px;
  color: var(--blue);
  font-size: 1.02rem;
}

.technology-modal-section p {
  color: var(--ink) !important;
  font-size: 1rem;
}

.technology-takeaway {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 26px;
  padding: 16px 18px;
  border-radius: 12px;
  background: #edf7fb;
}

.technology-takeaway p {
  margin: 0;
  color: #344150 !important;
  font-size: .88rem;
}

@media (max-width: 680px) {
  .technology-modal-content {
    padding: 32px 24px 24px;
  }
}


/* ---------------------------------------------------------
   Disclaimer
   --------------------------------------------------------- */

.footer-link {
  padding: 0;
  border: 0;
  color: white;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--accent);
  outline: none;
}

.disclaimer-modal {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(9, 19, 30, 0.78);
  backdrop-filter: blur(8px);
}

.disclaimer-modal.open {
  display: flex;
}

.disclaimer-modal-content {
  position: relative;
  width: min(100%, 920px);
  max-height: min(88vh, 900px);
  overflow-y: auto;
  padding: 42px 44px 34px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: white;
  box-shadow: var(--shadow);
}

.disclaimer-modal-close {
  position: absolute;
  top: 18px;
  right: 20px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 50%;
  color: var(--ink);
  background: var(--surface-soft);
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
}

.disclaimer-modal-close:hover,
.disclaimer-modal-close:focus-visible {
  background: #e2e9ef;
  outline: none;
}

.disclaimer-document {
  margin-top: 26px;
  color: #273542;
  font-size: 0.84rem;
  line-height: 1.62;
}

.disclaimer-document p {
  margin: 0 0 18px;
  color: #273542;
}

.disclaimer-document ul {
  margin: 0 0 20px;
  padding-left: 23px;
}

.disclaimer-document li {
  margin-bottom: 12px;
}

.disclaimer-company {
  margin-bottom: 24px;
  padding: 16px 18px;
  border-left: 3px solid var(--blue);
  background: var(--surface-soft);
  color: var(--ink);
}

.disclaimer-updated {
  margin-bottom: 0 !important;
  font-weight: 600;
}

.disclaimer-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

@media (max-width: 640px) {
  .disclaimer-modal {
    padding: 14px;
  }

  .disclaimer-modal-content {
    max-height: 92vh;
    padding: 34px 24px 26px;
  }

  .footer-right {
    flex-wrap: wrap;
  }
}


/* ---------------------------------------------------------
   Partners
   --------------------------------------------------------- */

.partners-section {
  background: white;
}

.partner-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
}

.partner-card {
  width: min(100%, 360px);
  min-height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 34px 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 12px 34px rgba(13,27,42,.045);
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.partner-card:hover,
.partner-card:focus-visible {
  transform: translateY(-2px);
  border-color: #b9c8d3;
  box-shadow: 0 16px 40px rgba(13,27,42,.08);
  outline: none;
}

.partner-card img {
  width: min(100%, 280px);
  height: auto;
  object-fit: contain;
}

@media (max-width: 640px) {
  .partner-card {
    width: 100%;
    min-height: 130px;
    padding: 28px 32px;
  }
}


/* ---------------------------------------------------------
   Tool Definition cards
   --------------------------------------------------------- */

#tool-definition .feature-grid {
  gap: 16px;
}

.tool-card {
  min-height: 205px;
  padding: 24px 22px;
  background: #fbfaf7;
  box-shadow: 0 8px 22px rgba(13, 27, 42, 0.035);
}

.tool-card .feature-number {
  margin-bottom: 30px;
}

.tool-card h3 {
  margin-bottom: 10px;
}

@media (max-width: 960px) {
  .tool-card {
    min-height: 185px;
  }
}

/* ---------------------------------------------------------
   Tool Definition interaction and Sonde selection
   --------------------------------------------------------- */

.tool-card-info {
  width: 100%;
  border: 1px solid var(--line);
  color: var(--ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.tool-card-info:hover,
.tool-card-info:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(0, 103, 177, 0.28);
  box-shadow: 0 14px 34px rgba(13, 27, 42, 0.07);
  outline: none;
}

.tool-card .feature-more {
  margin-top: 18px;
}

.sonde-selection {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 34px;
  align-items: stretch;
  margin-top: 42px;
  padding: 30px;
  border: 1px solid #d9dedf;
  border-radius: 18px;
  background: #f7f5ef;
}

.sonde-selection-copy h3 {
  margin-bottom: 14px;
  font-size: 1.45rem;
}

.sonde-selection-copy > p:not(.eyebrow) {
  max-width: 700px;
  margin-bottom: 18px;
}

.sonde-guide-link {
  color: var(--blue);
  font-size: .9rem;
  font-weight: 700;
  text-decoration: none;
}

.sonde-guide-link:hover,
.sonde-guide-link:focus-visible {
  text-decoration: underline;
  outline: none;
}

.sonde-name-example {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  border: 1px solid rgba(13, 27, 42, 0.10);
  border-radius: 14px;
  background: rgba(255,255,255,.72);
}

.sonde-example-label {
  margin-bottom: 7px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.sonde-name-example code {
  display: block;
  margin-bottom: 20px;
  color: var(--navy);
  font-family: "Space Grotesk", monospace;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 700;
}

.sonde-name-parts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.sonde-name-parts-two {
  grid-template-columns: repeat(2, 1fr);
}

.sonde-selection-note {
  margin-top: -4px;
  padding-top: 14px;
  border-top: 1px solid rgba(13, 27, 42, 0.08);
  font-size: .9rem;
}

.sonde-name-parts div {
  padding-top: 11px;
  border-top: 1px solid var(--line);
}

.sonde-name-parts strong,
.sonde-name-parts span {
  display: block;
}

.sonde-name-parts strong {
  color: var(--blue);
  font-size: .9rem;
}

.sonde-name-parts span {
  margin-top: 2px;
  color: var(--muted);
  font-size: .72rem;
}

.tool-definition-modal {
  display: none;
  position: fixed;
  z-index: 1170;
  inset: 0;
  padding: 30px 20px;
  align-items: center;
  justify-content: center;
  background: rgba(9, 19, 30, 0.78);
  backdrop-filter: blur(3px);
}

.tool-definition-modal.open {
  display: flex;
}

.tool-definition-modal-content {
  position: relative;
  width: min(720px, 94vw);
  max-height: 92vh;
  overflow: auto;
  padding: 38px 40px 30px;
  border-radius: 20px;
  background: #fbfaf7;
  box-shadow: var(--shadow);
}

.tool-definition-modal-close {
  position: absolute;
  top: 18px;
  right: 22px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
}

.tool-definition-modal-content h2 {
  margin-bottom: 12px;
  font-size: 2.3rem;
}

.tool-definition-modal-lead {
  margin-bottom: 24px;
  color: #41505d !important;
  font-size: 1.05rem;
  font-weight: 600;
}

.tool-definition-modal-description p {
  color: var(--ink) !important;
  font-size: 1rem;
}

.tool-definition-modal-description ul {
  margin: 10px 0 18px;
  padding-left: 22px;
  color: var(--ink);
}

.tool-definition-modal-description li {
  margin-bottom: 8px;
}

.tool-definition-example {
  margin: 20px 0;
  padding: 16px 18px;
  border-left: 3px solid var(--cyan);
  background: white;
  color: #344150;
  font-size: .9rem;
}

.tool-definition-takeaway {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 26px;
  padding: 16px 18px;
  border-radius: 12px;
  background: #edf7fb;
}

.tool-definition-takeaway p {
  margin: 0;
  color: #344150 !important;
  font-size: .88rem;
}

@media (max-width: 760px) {
  .sonde-selection {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .sonde-name-parts {
    grid-template-columns: 1fr;
  }

  .tool-definition-modal-content {
    padding: 32px 24px 24px;
  }
}


/* ---------------------------------------------------------
   Tool Definition conceptual diagrams
   --------------------------------------------------------- */

.tool-visual {
  margin: 24px 0;
  padding: 24px;
  border: 1px solid rgba(13, 27, 42, 0.09);
  border-radius: 14px;
  background: white;
}

/* Geometry */
.geometry-visual {
  position: relative;
  min-height: 150px;
  padding: 46px 28px 34px;
}

.tool-axis-line {
  position: absolute;
  left: 7%;
  right: 7%;
  top: 72px;
  height: 4px;
  border-radius: 999px;
  background: #cbd6de;
}

.tool-node {
  position: absolute;
  top: 52px;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  transform: translateX(-50%);
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 3px 10px rgba(13,27,42,.15);
  font-size: .68rem;
  font-weight: 800;
}

.tool-node span {
  position: absolute;
  top: -29px;
  white-space: nowrap;
  color: #344150;
}

.tool-node.tx {
  background: #0067b1;
}

.tool-node.rx {
  background: #00a7c4;
}

.tool-node.tx1 { left: 10%; }
.tool-node.tx2 { left: 27%; }
.tool-node.rx1 { left: 44%; }
.tool-node.rx2 { left: 56%; }
.tool-node.tx3 { left: 73%; }
.tool-node.tx4 { left: 90%; }

.tool-axis-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 17px;
  color: var(--muted);
  text-align: center;
  font-size: .75rem;
  font-weight: 600;
}

/* Frequencies */
.frequency-visual {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 18px;
  align-items: center;
}

.frequency-band {
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  padding: 18px;
  border-radius: 12px;
  background: #f6f9fb;
  text-align: center;
}

.frequency-band strong,
.frequency-band small {
  display: block;
}

.frequency-band small {
  color: var(--muted);
}

.frequency-divider {
  color: var(--cyan);
  font-size: 1.6rem;
  font-weight: 800;
}

.frequency-wave {
  width: 100%;
  height: 38px;
  display: block;
  margin-bottom: 6px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100% 100%;
}

.frequency-wave-low {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 40'%3E%3Cpath d='M0 20 C30 2 50 2 80 20 S130 38 160 20 S210 2 240 20' fill='none' stroke='%230067b1' stroke-width='4'/%3E%3C/svg%3E");
}

.frequency-wave-high {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 240 40'%3E%3Cpath d='M0 20 C10 2 20 2 30 20 S50 38 60 20 S80 2 90 20 S110 38 120 20 S140 2 150 20 S170 38 180 20 S200 2 210 20 S230 38 240 20' fill='none' stroke='%2300a7c4' stroke-width='4'/%3E%3C/svg%3E");
}

/* Modes */
.mode-visual {
  display: grid;
  gap: 14px;
}

.mode-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border-radius: 11px;
  background: #f6f9fb;
}

.mode-chip {
  padding: 7px 10px;
  border: 1px solid #d6e1e8;
  border-radius: 8px;
  background: white;
  color: var(--navy);
  font-size: .82rem;
  font-weight: 700;
}

.mode-frequency {
  color: #075887;
}

.mode-arrow,
.mode-at {
  color: var(--cyan);
  font-weight: 800;
}

/* Outputs */
.output-visual {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: center;
}

.output-inputs,
.output-results {
  display: grid;
  gap: 10px;
}

.output-inputs span,
.output-results span {
  padding: 13px 15px;
  border: 1px solid #d9e2e8;
  border-radius: 10px;
  background: #f8fafc;
}

.output-inputs strong,
.output-inputs small,
.output-results strong,
.output-results small {
  display: block;
}

.output-inputs small,
.output-results small {
  margin-top: 3px;
  color: var(--muted);
  font-size: .72rem;
}

.output-results span {
  background: #edf7fb;
}

.output-arrow {
  color: var(--cyan);
  font-size: 2rem;
  font-weight: 800;
}

@media (max-width: 620px) {
  .frequency-visual,
  .output-visual {
    grid-template-columns: 1fr;
  }

  .frequency-divider,
  .output-arrow {
    transform: rotate(90deg);
    text-align: center;
  }

  .geometry-visual {
    min-height: 180px;
    padding-inline: 10px;
  }

  .tool-node {
    width: 34px;
    height: 34px;
    font-size: .6rem;
  }
}

/* ---------------------------------------------------------
   Published Work
   --------------------------------------------------------- */

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

.publications-hint {
  margin-top: 10px;
  font-size: .92rem;
}

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

.publication-strip {
  width: 100%;
  display: grid;
  grid-template-columns: 150px 1fr 34px;
  gap: 20px;
  align-items: center;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
  color: var(--ink);
  text-align: left;
  font: inherit;
  cursor: pointer;
  box-shadow: 0 7px 22px rgba(13,27,42,.035);
  transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease;
}

.publication-strip:hover,
.publication-strip:focus-visible {
  transform: translateY(-1px);
  border-color: #aac7d8;
  box-shadow: 0 10px 28px rgba(13,27,42,.07);
  outline: none;
}

.publication-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.publication-meta strong {
  color: var(--blue);
  font-family: "Space Grotesk", sans-serif;
}

.publication-meta span {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.publication-title {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
}

.publication-open {
  color: var(--cyan);
  font-weight: 800;
  text-align: center;
}

.publication-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(13, 27, 42, .72);
  backdrop-filter: blur(5px);
}

.publication-modal.open {
  display: flex;
}

.publication-modal-content {
  position: relative;
  width: min(760px, 100%);
  max-height: 88vh;
  overflow: auto;
  padding: 34px;
  border-radius: 20px;
  background: white;
  box-shadow: var(--shadow);
}

.publication-modal-close {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  background: #edf2f6;
  color: var(--ink);
  font-size: 1.45rem;
  line-height: 1;
  cursor: pointer;
}

.publication-authors {
  margin-bottom: 24px;
  color: var(--muted);
  font-size: .92rem;
}

.publication-summary-block {
  padding: 20px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #f8fafc;
}

.publication-summary-block h3 {
  margin-bottom: 9px;
}

.publication-summary-block p {
  margin-bottom: 0;
  color: #445565;
}

.publication-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.publication-note {
  margin: 16px 0 0;
  color: #74808b;
  font-size: .78rem;
}

@media (max-width: 720px) {
  .publication-strip {
    grid-template-columns: 1fr 30px;
    gap: 8px 14px;
  }

  .publication-meta {
    grid-column: 1 / 2;
  }

  .publication-title {
    grid-column: 1 / 2;
  }

  .publication-open {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .publication-modal-content {
    padding: 28px 22px;
  }
}


/* ---------------------------------------------------------
   Supported Sonde tools popup
   --------------------------------------------------------- */

.sonde-name-example.sonde-supported-open {
  width: 100%;
  border: 1px solid var(--line);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.sonde-name-example.sonde-supported-open:hover,
.sonde-name-example.sonde-supported-open:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(0, 103, 177, 0.38);
  box-shadow: 0 16px 38px rgba(13, 27, 42, 0.10);
  outline: none;
}

.sonde-example-more {
  display: block;
  margin-top: 18px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
}

.sonde-supported-modal {
  position: fixed;
  z-index: 120;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background: rgba(9, 19, 30, 0.72);
  backdrop-filter: blur(6px);
}

.sonde-supported-modal.open {
  display: flex;
}

.sonde-supported-modal-content {
  position: relative;
  width: min(100%, 820px);
  max-height: min(88vh, 900px);
  overflow-y: auto;
  padding: 38px;
  border-radius: 22px;
  background: white;
  box-shadow: var(--shadow);
}

.sonde-supported-modal-close {
  position: absolute;
  top: 16px;
  right: 18px;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 50%;
  color: var(--ink);
  background: var(--surface-soft);
  font-size: 1.65rem;
  line-height: 1;
  cursor: pointer;
}

.sonde-supported-lead {
  margin-bottom: 24px;
}

.sonde-supported-table {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: white;
}

.sonde-supported-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 22px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

.sonde-supported-row:last-child {
  border-bottom: 0;
}

.sonde-supported-row strong {
  font-family: "Space Grotesk", sans-serif;
  white-space: nowrap;
}

.sonde-supported-row span {
  color: var(--muted);
}

.sonde-supported-header {
  background: var(--surface-soft);
  color: var(--ink);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sonde-supported-header span {
  color: var(--ink);
}

.sonde-supported-contact {
  margin-top: 26px;
  padding: 20px 22px;
  border-radius: 14px;
  background: var(--surface-soft);
}

.sonde-supported-contact h3 {
  margin-bottom: 6px;
}

.sonde-supported-contact p {
  margin-bottom: 0;
}

.sonde-supported-contact a {
  color: var(--blue);
  font-weight: 700;
}

@media (max-width: 680px) {
  .sonde-supported-modal {
    padding: 14px;
  }

  .sonde-supported-modal-content {
    padding: 30px 18px 22px;
  }

  .sonde-supported-row {
    grid-template-columns: 112px 1fr;
    gap: 12px;
    padding: 9px 12px;
    font-size: 0.86rem;
  }
}


/* ---------------------------------------------------------
   Actual Intelligence
   --------------------------------------------------------- */

.actual-intelligence {
  padding: 72px 0;
  color: white;
  background:
    linear-gradient(120deg, #0d1b2a, #12324a 62%, #075887);
}

.actual-intelligence-inner {
  max-width: 920px;
}

.actual-intelligence .eyebrow {
  color: #6bd6e3;
}

.actual-intelligence h2 {
  margin-bottom: 18px;
  color: white;
}

.actual-intelligence p {
  max-width: 820px;
  color: #d7e4ed;
}

.actual-intelligence-lead {
  margin-bottom: 12px;
  font-size: 1.08rem;
}

.actual-intelligence strong {
  color: white;
}


/* Sonde naming guide link */
.sonde-naming-guide {
  display: inline-block;
  margin-top: 14px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.sonde-naming-guide:hover,
.sonde-naming-guide:focus-visible {
  text-decoration: underline;
}

/* ---------------------------------------------------------
   Applications: published-example illustration popup
   --------------------------------------------------------- */
.application-popup { border: 0; cursor: pointer; font-size: 1rem; }
.application-popup:hover, .application-popup:focus-visible { background: var(--blue); outline-offset: 3px; }
.application-modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; padding: 20px; background: rgba(8, 19, 32, .79); z-index: 110; }
.application-modal.open { display: flex; }
.application-modal-content { position: relative; width: min(1120px, 100%); max-height: 92vh; overflow-y: auto; background: white; padding: 34px; border-radius: 18px; box-shadow: 0 25px 75px rgba(0,0,0,.24); }
.application-modal-close { position: absolute; top: 14px; right: 18px; border: 0; background: transparent; font-size: 34px; line-height: 1; color: var(--ink); cursor: pointer; }
.application-modal-content h2 { margin: 0 45px 8px 0; font-size: clamp(1.8rem, 3vw, 2.5rem); }
.application-modal-lead { color: var(--muted); font-size: 1.04rem; margin-bottom: 20px; }
.application-log-image { width: 100%; border-radius: 13px; border: 1px solid var(--line); }
.application-image-note, .application-attribution { color: #5a6b7d; font-size: .75rem; line-height: 1.55; margin: 10px 0 18px; }
.application-takeaway { padding: 16px 20px; background: #eaf6fa; border-left: 4px solid var(--cyan); border-radius: 8px; }
.application-takeaway strong { color: #123e58; }
.application-takeaway p { margin: 6px 0 0; color: #405569; }
.application-attribution { margin-top: 16px; }
/* Keep the contact action in the open right-hand side of the title area. */
.application-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 26px;
  padding-right: 43px; /* reserve space for the close control */
  margin-bottom: 20px;
}
.application-modal-heading { min-width: 0; }
.application-modal-header .eyebrow { margin-bottom: 10px; }
.application-modal-header .application-modal-lead { margin-bottom: 0; }
.application-modal-header .application-contact-link { flex-shrink: 0; white-space: nowrap; }
@media (max-width: 720px) {
  .application-modal { padding: 8px; }
  .application-modal-content { padding: 22px 15px; max-height: 96vh; overflow-x: auto; }
  .application-log-image { min-width: 690px; }
  .application-modal-header { flex-direction: column; align-items: stretch; gap: 16px; padding-right: 36px; }
  .application-modal-header .application-contact-link { align-self: flex-start; white-space: normal; text-align: center; }
}

/* Authentic published log: preserve its original aspect ratio and native width. */
.application-example-layout { display: grid; grid-template-columns: minmax(0, 628px) minmax(250px, 1fr); align-items: start; gap: 28px; }
.application-log-frame { max-width: 628px; width: 100%; }
.application-log-image { display: block; width: 100%; max-width: 628px; height: auto; border: 1px solid var(--line); border-radius: 6px; }
.application-example-copy { padding-top: 8px; }
.application-example-copy h3 { font-size: 1.36rem; margin-bottom: 6px; }
.application-example-context { font-size: .82rem; font-weight: 600; color: var(--blue) !important; margin-bottom: 18px; }
.application-example-facts { margin: 0 0 20px; border-top: 1px solid var(--line); }
.application-example-facts div { display: grid; grid-template-columns: 110px 1fr; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line); }
.application-example-facts dt { font-size: .78rem; font-weight: 700; color: var(--muted); }
.application-example-facts dd { margin: 0; font-size: .83rem; }
.application-example-copy > p { font-size: .9rem; line-height: 1.6; }
.application-example-copy .application-takeaway { margin-top: 22px; }
@media (max-width: 870px) {
  .application-example-layout { grid-template-columns: 1fr; }
  .application-log-frame { margin-inline: auto; }
  .application-example-copy { max-width: 628px; margin-inline: auto; }
}
@media (max-width: 720px) {
  .application-log-frame { overflow-x: auto; }
  .application-log-image { min-width: 0; width: 100%; }
}

/* ---------------------------------------------------------
   Sonde Builder navigation and software card
   --------------------------------------------------------- */

.sonde-builder-callout {
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.sonde-builder-callout > strong {
  display: block;
  margin-bottom: 6px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.05rem;
}

.sonde-builder-callout p {
  margin-bottom: 15px !important;
}

.sonde-builder-callout .button {
  min-height: 42px;
  padding: 9px 16px;
  font-size: 0.88rem;
}

#sonde-builder {
  scroll-margin-top: 110px;
}

.sonde-builder-card a {
  line-height: 1.95;
}