/* ==========================================================================
   GEOLiNK · PRISM / LAB — site styles
   Load order: design-tokens.css → site.css
   Base type, navigation, footer, buttons, forms, inquiry modal, sections,
   cards, specification tables and the optical-stage signature device.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1 · Reset and base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body.has-modal {
  overflow: hidden;
}

main {
  display: block;
}

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

img {
  height: auto;
}

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

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

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

hr {
  border: 0;
  border-top: 1px solid var(--line-soft);
  margin: 0;
}

::selection {
  background: rgba(var(--color-cyan-rgb), 0.2);
  color: var(--ink);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

/* --------------------------------------------------------------------------
   2 · Typography
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4 {
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: var(--weight-light);
}

h1 {
  font-size: var(--text-h1);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
}

h2 {
  font-size: var(--text-h2);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-display);
}

h3 {
  font-size: var(--text-h3);
  font-weight: var(--weight-medium);
  line-height: 1.3;
  letter-spacing: var(--tracking-tight);
}

h4 {
  font-size: var(--text-md);
  font-weight: var(--weight-medium);
  line-height: 1.35;
}

p {
  max-width: var(--measure);
}

strong,
b {
  font-weight: var(--weight-medium);
}

small {
  font-size: var(--text-sm);
}

.display {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: var(--weight-light);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  text-shadow: 0 1px 0 rgba(var(--color-white-rgb), 0.55);
}

.display em,
.display .accent {
  color: var(--accent-strong);
  font-style: normal;
}

h1.display,
h2.display {
  max-width: 20ch;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-4);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: var(--text-eyebrow);
  font-weight: var(--weight-regular);
  letter-spacing: var(--tracking-label);
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
  opacity: 0.65;
}

.lead {
  max-width: var(--measure);
  color: var(--text-secondary);
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.6;
}

.muted {
  color: var(--text-secondary);
}

.mono,
.data {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.data {
  font-weight: var(--weight-light);
  color: var(--ink);
}

.text-accent {
  color: var(--accent-ink);
}

.no-wrap {
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   3 · Layout primitives
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: var(--section-y);
}

.section--tight {
  padding-block: var(--section-y-sm);
}

.section--ice {
  background: linear-gradient(
    180deg,
    var(--color-lab-white) 0%,
    var(--color-ice-soft) 38%,
    var(--color-ice) 100%
  );
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
}

.section--raised {
  background: var(--gradient-lab);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.section-head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-7);
}

.section-head h2 {
  max-width: 22ch;
}

.section-head .lead {
  margin-top: var(--space-1);
}

.grid {
  display: grid;
  gap: var(--space-6);
  min-width: 0;
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid--tight {
  gap: var(--space-4);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: start;
}

.stack > * + * {
  margin-top: var(--space-4);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.divider {
  height: 1px;
  border: 0;
  background: var(--line-soft);
}

/* --------------------------------------------------------------------------
   4 · Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-hair);
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: var(--weight-regular);
  letter-spacing: 0.09em;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
  transition:
    background-color var(--dur-base) var(--ease-standard),
    border-color var(--dur-base) var(--ease-standard),
    color var(--dur-base) var(--ease-standard),
    box-shadow var(--dur-base) var(--ease-standard),
    transform var(--dur-fast) var(--ease-standard);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  border-color: var(--accent-ink);
  background: var(--accent-strong);
  color: var(--color-white);
  box-shadow:
    inset 0 1px 0 rgba(var(--color-white-rgb), 0.22),
    0 10px 24px -14px rgba(var(--color-cyan-rgb), 0.7);
}

.btn-primary:hover {
  border-color: var(--color-graphite-deep);
  background: var(--accent-ink);
  color: var(--color-white);
  box-shadow:
    inset 0 1px 0 rgba(var(--color-white-rgb), 0.12),
    0 14px 30px -16px rgba(var(--color-cyan-ink-rgb), 0.6);
}

.btn-ghost {
  border-color: var(--border-ui);
  background: transparent;
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--accent-ink);
  background: rgba(var(--color-cyan-rgb), 0.08);
  color: var(--accent-ink);
}

.btn-quiet {
  min-height: 44px;
  padding: 8px 0;
  border: 0;
  border-bottom: 1px solid currentColor;
  border-radius: 0;
  background: transparent;
  color: var(--text-secondary);
}

.btn-quiet:hover {
  color: var(--accent-ink);
}

.btn-sm {
  min-height: 36px;
  padding: 8px 14px;
  font-size: 9.5px;
}

/* --------------------------------------------------------------------------
   5 · Navigation
   -------------------------------------------------------------------------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: rgba(var(--color-lab-white-rgb), 0.93);
  border-bottom: 1px solid var(--line-soft);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  transition:
    background-color var(--dur-base) var(--ease-standard),
    box-shadow var(--dur-base) var(--ease-standard);
}

.site-nav.is-scrolled {
  background: rgba(var(--color-lab-white-rgb), 0.97);
  box-shadow:
    0 1px 0 rgba(var(--color-graphite-rgb), 0.04),
    0 12px 30px -24px rgba(var(--color-graphite-rgb), 0.45);
}

.nav-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  width: 100%;
  max-width: var(--shell);
  min-height: var(--nav-height);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  flex: none;
  order: 1;
  min-height: 44px;
}

.nav-brand img {
  width: 148px;
  height: auto;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  order: 4;
  width: 44px;
  height: 44px;
  margin-left: var(--space-2);
  padding: 0;
  border: 1px solid var(--border-ui);
  border-radius: var(--radius-hair);
  background: transparent;
  color: var(--ink);
  transition:
    border-color var(--dur-fast) var(--ease-standard),
    color var(--dur-fast) var(--ease-standard),
    background-color var(--dur-fast) var(--ease-standard);
}

.nav-toggle:hover {
  border-color: var(--accent-ink);
  color: var(--accent-ink);
}

.nav-toggle .nav-toggle-close {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-close {
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 26px);
  order: 2;
  margin-left: auto;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
  line-height: 1.3;
  transition:
    color var(--dur-fast) var(--ease-standard),
    border-color var(--dur-fast) var(--ease-standard);
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 100%;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: var(--accent-strong);
  transition: right var(--dur-base) var(--ease-out);
}

.nav-link:hover,
.nav-link.is-current {
  color: var(--ink);
}

.nav-link:hover::after,
.nav-link.is-current::after {
  right: 0;
}

.nav-link.is-current {
  color: var(--accent-ink);
}

.nav-cta {
  order: 3;
  flex: none;
  min-height: 42px;
  padding: 10px 16px;
  font-size: 9.5px;
  letter-spacing: 0.08em;
}

/* --------------------------------------------------------------------------
   6 · Optical stage (signature device)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(
      900px 520px at 50% 74%,
      rgba(var(--color-cyan-rgb), 0.08),
      transparent 66%
    ),
    var(--gradient-lab);
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(48px, 6vw, 80px) clamp(36px, 5vw, 64px);
  text-align: center;
}

.hero-inner .eyebrow {
  margin-bottom: var(--space-4);
}

.hero-inner .display,
.hero-inner h1 {
  margin-inline: auto;
  max-width: 18ch;
  text-align: center;
}

.hero-inner .lead {
  margin: var(--space-5) auto 0;
  max-width: 56ch;
  text-align: center;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(320px, 42vw, 520px);
  margin-top: var(--space-5);
  overflow: hidden;
  isolation: isolate;
}

.stage-shadow {
  position: absolute;
  bottom: 18%;
  width: min(420px, 70vw);
  height: 48px;
  border-radius: 50%;
  background: radial-gradient(
    ellipse,
    rgba(var(--color-graphite-rgb), 0.2),
    transparent 70%
  );
  filter: blur(6px);
}

.scan-ring {
  position: absolute;
  width: min(480px, 80vw);
  height: min(480px, 80vw);
  border: 1px solid rgba(var(--color-cyan-rgb), 0.22);
  border-radius: 50%;
  animation: geolink-spin var(--dur-scan) linear infinite;
}

.scan-ring::before {
  content: "";
  position: absolute;
  inset: 34px;
  border: 1px dashed rgba(var(--color-cyan-rgb), 0.18);
  border-radius: 50%;
}

.scan-ring::after {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(var(--color-cyan-rgb), 0.5);
}

.crosshair {
  position: absolute;
  width: min(680px, 90vw);
  height: 1px;
  background: var(--gradient-hairline);
}

.crosshair--v {
  width: 1px;
  height: min(480px, 64vh);
  background: linear-gradient(
    180deg,
    transparent,
    rgba(var(--color-cyan-rgb), 0.16),
    transparent
  );
}

.stage-object {
  position: relative;
  z-index: 3;
  width: min(470px, 70vw);
  max-height: 440px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 26px 30px rgba(var(--color-graphite-rgb), 0.2));
  animation: geolink-float var(--dur-float) ease-in-out infinite;
}

.stage-object--wide {
  width: min(570px, 78vw);
}

.stage-object--small {
  width: min(390px, 62vw);
}

.measure {
  position: absolute;
  z-index: 4;
  padding: 4px 8px;
  border: 1px solid var(--line);
  background: rgba(var(--color-lab-white-rgb), 0.86);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  line-height: 1.4;
  white-space: nowrap;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.measure::before {
  content: "";
  position: absolute;
  background: var(--accent-strong);
  opacity: 0.65;
}

.measure--left {
  left: 2%;
  top: 40%;
}

.measure--left::before {
  top: 50%;
  right: -18px;
  width: 18px;
  height: 1px;
}

.measure--right {
  right: 2%;
  top: 54%;
}

.measure--right::before {
  top: 50%;
  left: -18px;
  width: 18px;
  height: 1px;
}

.measure--bottom {
  left: 50%;
  bottom: 4%;
  transform: translateX(-50%);
}

.measure--bottom::before {
  top: -18px;
  left: 50%;
  width: 1px;
  height: 18px;
}

@keyframes geolink-spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes geolink-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(calc(var(--float-shift) * -1));
  }
}

/* --------------------------------------------------------------------------
   7 · Cards
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(var(--color-white-rgb), 0.62);
  box-shadow: var(--shadow-raised);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition:
    transform var(--dur-base) var(--ease-standard),
    border-color var(--dur-base) var(--ease-standard),
    box-shadow var(--dur-base) var(--ease-standard);
}

.card:hover {
  transform: translateY(-2px);
  border-color: var(--color-line-strong);
  box-shadow: var(--shadow-lift);
}

.card-media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  padding: clamp(14px, 2.4vw, 24px);
  border-bottom: 1px solid var(--line-soft);
  background:
    radial-gradient(
      70% 70% at 50% 44%,
      rgba(var(--color-white-rgb), 0.95),
      transparent 70%
    ),
    var(--gradient-ice);
}

.card-media::after {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(var(--color-white-rgb), 0.72);
  pointer-events: none;
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(0 12px 16px rgba(var(--color-graphite-rgb), 0.14));
  transition: transform var(--dur-slow) var(--ease-out);
}

.card:hover .card-media img {
  transform: scale(1.015);
}

.card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: var(--space-3);
  padding: var(--space-5) var(--space-5) var(--space-6);
}

.card-body h3 {
  margin: 0;
}

.card-body p {
  color: var(--text-secondary);
  font-size: 14px;
}

.card-body .btn,
.card-body .btn-quiet {
  align-self: flex-start;
  margin-top: auto;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.07em;
  line-height: 1.5;
  text-transform: uppercase;
}

.meta > span + span::before {
  content: "/";
  margin-right: 8px;
  color: var(--color-ink-38);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 1px solid var(--line);
  background: rgba(var(--color-lab-white-rgb), 0.82);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   8 · Specification table
   -------------------------------------------------------------------------- */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.spec-table caption {
  caption-side: top;
  margin-bottom: var(--space-3);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: var(--tracking-label);
  text-align: left;
  text-transform: uppercase;
}

.spec-row {
  border-bottom: 1px solid var(--line-soft);
}

.spec-row:first-child {
  border-top: 1px solid var(--line);
}

.spec-key {
  width: 42%;
  padding: 12px 16px 12px 0;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: var(--weight-regular);
  letter-spacing: 0.07em;
  line-height: 1.5;
  text-align: left;
  text-transform: uppercase;
  vertical-align: top;
}

.spec-val {
  padding: 12px 0;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  line-height: 1.55;
  text-align: left;
  vertical-align: top;
}

.spec-val b,
.spec-val strong {
  color: var(--accent-ink);
  font-weight: var(--weight-regular);
}

/* Div form of the same contract. */
div.spec-table .spec-row {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: var(--space-4);
}

div.spec-table .spec-key,
div.spec-table .spec-val {
  width: auto;
}

/* --------------------------------------------------------------------------
   9 · Forms
   -------------------------------------------------------------------------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
  margin-bottom: var(--space-3);
}

.field label {
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.field .req {
  color: var(--accent-ink);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--border-ui);
  border-radius: var(--radius-hair);
  background: var(--color-lab-raised);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.4;
  transition:
    border-color var(--dur-fast) var(--ease-standard),
    box-shadow var(--dur-fast) var(--ease-standard),
    background-color var(--dur-fast) var(--ease-standard);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--text-secondary);
  opacity: 1;
}

.field textarea {
  min-height: 88px;
  resize: vertical;
}

.field select {
  appearance: none;
  padding-right: 36px;
  background-image: linear-gradient(
      45deg,
      transparent 50%,
      var(--text-secondary) 50%
    ),
    linear-gradient(135deg, var(--text-secondary) 50%, transparent 50%);
  background-position:
    calc(100% - 17px) calc(50% - 2px),
    calc(100% - 12px) calc(50% - 2px);
  background-repeat: no-repeat;
  background-size: 5px 5px, 5px 5px;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: var(--accent-strong);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent-ink);
  outline: 2px solid var(--focus);
  outline-offset: 1px;
  background: var(--color-white);
  box-shadow: var(--shadow-focus);
}

.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea {
  border-color: var(--danger);
  background: var(--color-danger-soft);
}

.field-error {
  color: var(--danger);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 var(--space-4);
}

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

.form-note {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9.5px;
  line-height: 1.7;
}

.form-note a {
  color: var(--accent-ink);
  border-bottom: 1px solid currentColor;
}

.form-status {
  margin-top: var(--space-3);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.6;
}

.form-status.is-error {
  color: var(--danger);
}

/* --------------------------------------------------------------------------
   10 · Inquiry modal
   -------------------------------------------------------------------------- */
.inquiry-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: flex-start;
  justify-content: center;
  overflow-y: auto;
  padding: clamp(12px, 3vw, 36px);
  background: rgba(var(--color-graphite-deep-rgb), 0.46);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.inquiry-modal.is-open {
  display: flex;
}

.inquiry-dialog {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  width: min(980px, 100%);
  max-height: min(92vh, 860px);
  margin: auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--color-lab-raised);
  box-shadow:
    0 44px 120px -36px rgba(var(--color-graphite-deep-rgb), 0.5),
    0 0 0 1px rgba(var(--color-white-rgb), 0.6) inset;
}

.inquiry-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 6;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(var(--color-lab-raised-rgb), 0.9);
  color: var(--ink);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition:
    border-color var(--dur-fast) var(--ease-standard),
    color var(--dur-fast) var(--ease-standard),
    background-color var(--dur-fast) var(--ease-standard);
}

.inquiry-close:hover {
  border-color: var(--accent-ink);
  background: var(--color-white);
  color: var(--accent-ink);
}

.inquiry-media {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 420px;
  overflow: hidden;
  padding: clamp(22px, 3.4vw, 46px);
  border-right: 1px solid var(--line);
  background:
    radial-gradient(
      62% 54% at 50% 44%,
      rgba(var(--color-white-rgb), 0.92),
      transparent 72%
    ),
    var(--gradient-ice);
}

.inquiry-media::before {
  content: "";
  position: absolute;
  width: min(400px, 82%);
  aspect-ratio: 1;
  border: 1px solid rgba(var(--color-cyan-rgb), 0.2);
  border-radius: 50%;
  animation: geolink-spin var(--dur-scan) linear infinite;
}

.inquiry-media::after {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(var(--color-white-rgb), 0.7);
  pointer-events: none;
}

.inquiry-media img {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 430px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 22px 26px rgba(var(--color-graphite-rgb), 0.2));
  animation: geolink-float var(--dur-float) ease-in-out infinite;
}

.inquiry-object {
  position: absolute;
  right: clamp(14px, 2.4vw, 24px);
  bottom: clamp(14px, 2.4vw, 24px);
  left: clamp(14px, 2.4vw, 24px);
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 12px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.06em;
  line-height: 1.5;
  text-transform: uppercase;
}

.inquiry-object-key {
  color: var(--accent-ink);
}

.inquiry-object-val {
  color: var(--text-secondary);
}

.inquiry-form {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: clamp(24px, 3vw, 38px);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.inquiry-title {
  margin-bottom: var(--space-2);
  font-size: clamp(28px, 3vw, 38px);
  line-height: 1.04;
}

.inquiry-promise {
  margin-bottom: var(--space-5);
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
}

.inquiry-promise strong {
  color: var(--ink);
  font-weight: var(--weight-medium);
}

.inquiry-submit {
  width: 100%;
  margin-top: var(--space-1);
}

.inquiry-form .form-note {
  margin-top: var(--space-4);
}

/* --------------------------------------------------------------------------
   11 · Footer
   -------------------------------------------------------------------------- */
.site-footer {
  position: relative;
  padding-block: clamp(44px, 6vw, 72px) var(--space-5);
  border-top: 1px solid var(--line);
  background: linear-gradient(
    180deg,
    var(--color-lab-raised) 0%,
    var(--color-lab-white) 100%
  );
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--gradient-hairline);
  opacity: 0.9;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, minmax(0, 0.78fr));
  gap: clamp(28px, 4vw, 48px);
  min-width: 0;
}

.footer-col {
  min-width: 0;
}

.footer-brand {
  max-width: 36ch;
}

.footer-logo {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
}

.footer-logo img {
  width: 146px;
  height: auto;
}

.footer-brand p {
  margin-top: var(--space-3);
  color: var(--text-secondary);
  font-size: 12.5px;
  line-height: 1.7;
}

.footer-cta {
  margin-top: var(--space-4);
}

.footer-col h4 {
  margin: 0 0 var(--space-3);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: var(--weight-regular);
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.footer-col a {
  display: block;
  padding: 4px 0;
  color: var(--text-secondary);
  font-size: 12.5px;
  line-height: 1.5;
  transition: color var(--dur-fast) var(--ease-standard);
}

.footer-col a:hover {
  color: var(--accent-ink);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--space-3) var(--space-7);
  margin-top: clamp(32px, 4vw, 48px);
  padding-top: var(--space-4);
  border-top: 1px solid var(--line-soft);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.8;
}

.footer-copy {
  color: var(--ink);
  white-space: nowrap;
}

.footer-legal {
  display: grid;
  gap: 2px;
  max-width: 78ch;
}

.footer-legal p {
  max-width: none;
}

.footer-legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-left: auto;
}

.footer-legal-links a {
  color: var(--text-secondary);
  border-bottom: 1px solid transparent;
}

.footer-legal-links a:hover {
  color: var(--accent-ink);
  border-bottom-color: currentColor;
}

/* --------------------------------------------------------------------------
   12 · Reveal & motion
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 1;
  transform: none;
}

.js-reveal .reveal {
  opacity: 0;
  transform: translateY(var(--reveal-shift));
  transition:
    opacity var(--dur-reveal) var(--ease-out),
    transform var(--dur-reveal) var(--ease-out);
  will-change: opacity, transform;
}

.js-reveal .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  will-change: auto;
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .reveal,
  .js-reveal .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .scan-ring,
  .stage-object,
  .inquiry-media::before,
  .inquiry-media img {
    animation: none !important;
  }

  .crosshair,
  .scan-ring,
  .scan-ring::before,
  .scan-ring::after {
    opacity: 1;
  }
}

/* --------------------------------------------------------------------------
   13 · Utilities
   -------------------------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: var(--z-skip);
  padding: 10px 14px;
  border: 1px solid var(--accent-ink);
  background: var(--color-white);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 11px;
  transform: translateY(-160%);
  transition: transform var(--dur-fast) var(--ease-standard);
}

.skip-link:focus {
  transform: translateY(0);
}

.icon {
  display: inline-block;
  width: 24px;
  height: 24px;
  flex: none;
  vertical-align: -0.25em;
}

.icon--sm {
  width: 18px;
  height: 18px;
}

.icon--lg {
  width: 32px;
  height: 32px;
}

/* --------------------------------------------------------------------------
   14 · Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-brand {
    grid-column: 1 / -1;
    max-width: 48ch;
  }
}

@media (max-width: 900px) {
  .nav-inner {
    min-height: var(--nav-height-mobile);
    gap: var(--space-2);
  }

  .nav-brand {
    order: 1;
  }

  .nav-brand img {
    width: 126px;
  }

  .nav-cta {
    order: 2;
    margin-left: auto;
  }

  .nav-toggle {
    display: inline-flex;
    order: 3;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    z-index: 1;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    order: 4;
    margin-left: 0;
    padding: var(--space-1) var(--gutter) var(--space-5);
    border-bottom: 1px solid var(--line);
    background: var(--color-lab-white);
    box-shadow: 0 24px 40px -30px rgba(var(--color-graphite-rgb), 0.4);
  }

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

  .nav-link {
    min-height: 48px;
    padding: 13px 0;
    border-bottom: 1px solid var(--line-soft);
    font-size: 14px;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link.is-current {
    color: var(--accent-ink);
  }

  .split,
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-inner {
    padding-top: var(--space-9);
  }

  .measure--left {
    left: 0;
  }

  .measure--right {
    right: 0;
  }
}

@media (max-width: 720px) {
  .inquiry-dialog {
    grid-template-columns: 1fr;
    max-height: 92vh;
    overflow-y: auto;
  }

  .inquiry-media {
    min-height: 0;
    height: 184px;
    padding: 14px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .inquiry-media::before {
    width: 210px;
  }

  .inquiry-media img {
    width: auto;
    max-width: 72%;
    max-height: 146px;
    animation: none;
  }

  .inquiry-object {
    right: 14px;
    bottom: 10px;
    left: 14px;
    padding-top: 5px;
    font-size: 7.5px;
  }

  .inquiry-form {
    overflow: visible;
    padding: var(--space-5) var(--space-5) var(--space-6);
  }

  .inquiry-title {
    font-size: clamp(26px, 7vw, 32px);
  }

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

  .field--full {
    grid-column: auto;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 14.5px;
  }

  .hero-inner {
    padding-top: var(--space-8);
  }

  .stage {
    min-height: 300px;
  }

  .scan-ring {
    width: min(320px, 76vw);
    height: min(320px, 76vw);
  }

  .stage-object {
    width: min(340px, 76vw);
  }

  .stage-object--wide {
    width: min(380px, 84vw);
  }

  .stage-object--small {
    width: min(290px, 68vw);
  }

  .measure {
    font-size: 8.5px;
  }

  .measure--left {
    top: 34%;
  }

  .measure--right {
    top: 58%;
  }

  .grid--2,
  .grid--3,
  .grid--4,
  .split {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    display: grid;
    gap: var(--space-3);
  }

  .footer-legal-links {
    margin-left: 0;
  }
}

@media (max-width: 420px) {
  .nav-brand img {
    width: 108px;
  }

  .nav-cta {
    min-height: 38px;
    padding: 8px 9px;
    font-size: 8.5px;
    letter-spacing: 0.04em;
  }

  .nav-toggle {
    width: 40px;
    height: 40px;
    margin-left: 0;
  }

  .nav-inner {
    gap: 6px;
  }

  .inquiry-modal {
    padding: 8px;
  }

  .inquiry-dialog {
    max-height: 96vh;
  }

  .inquiry-media {
    height: 152px;
  }

  .inquiry-media img {
    max-height: 120px;
  }

  .inquiry-object-val {
    display: none;
  }

  .inquiry-form {
    padding: var(--space-4) var(--space-4) var(--space-5);
  }
}

/* --------------------------------------------------------------------------
   15 · Forced colours
   -------------------------------------------------------------------------- */
@media (forced-colors: active) {
  .btn,
  .field input,
  .field select,
  .field textarea,
  .nav-toggle,
  .inquiry-close {
    border: 1px solid ButtonText;
  }

  .card,
  .inquiry-dialog {
    border: 1px solid CanvasText;
  }
}

/* Mobile diagram scroller — wide SVGs keep native label size */
.svg-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 6px;
}
.svg-scroll > svg {
  max-width: none;
}
.svg-scroll-hint {
  margin: 6px 0 0;
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  line-height: 1.5;
  text-transform: uppercase;
}
@media (min-width: 701px) {
  .svg-scroll-hint { display: none; }
}

.nowrap {
  white-space: nowrap;
}