/* Global survey-archive theme with restrained glass overlays */
:root {
  --color-parchment: #f5f2eb;
  --color-granite: #23272a;
  --color-silt: #c59b63;
  --color-lake: #3b525f;
  --color-night: rgba(35, 39, 42, 0.08);
  --color-glass: rgba(245, 242, 235, 0.62);
  --font-display: 'Instrument Serif', 'Times New Roman', serif;
  --font-grid: 'IBM Plex Mono', 'Courier New', monospace;
  --font-body: system-ui, 'Segoe UI', sans-serif;
  --space-xxs: 0.375rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --radius-md: 0;
  --radius-panel: 0;
  --border-field: 0.0875rem solid rgba(59, 82, 95, 0.35);
  --shadow-sheet: 0 0.75rem 1.8rem rgba(35, 39, 42, 0.12);
  --transition-fast: 0.3s ease;
  --blur-glass: 12px;
  --banner-min-height: clamp(42vh, 48vw, 78vh);
  --grain-opacity: 0.08;
  --coordinate-size: clamp(0.65rem, 1.65vw, 0.8125rem);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

html {
  font-size: 100%;
  overflow-x: hidden;
}

html.locked-scroll-root,
html.locked-scroll-root body {
  overflow: hidden;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-granite);
  background-color: var(--color-parchment);
  line-height: 1.6;
  overflow-x: hidden;
}

.surface-topo {
  min-height: 100vh;
  position: relative;
  background-image: linear-gradient(transparent 0%, transparent 94%, rgba(59, 82, 95, 0.05) 100%),
    repeating-linear-gradient(120deg, rgba(59, 82, 95, 0.03) 0 0.04375rem, transparent 0.04375rem 0.625rem),
    repeating-linear-gradient(30deg, rgba(35, 39, 42, 0.02) 0 1px, transparent 1px 1.5rem),
    radial-gradient(circle at 12% -8%, rgba(197, 155, 99, 0.15), transparent 55%),
    var(--color-parchment);
}

.surface-grain::before {
  content: '';
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: var(--grain-opacity);
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='1.05' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='0.35'/%3E%3C/svg%3E");
}

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

.page-flow {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.header-compass-shell {
  position: relative;
  width: min(118rem, 100%);
  margin: 0 auto;
  padding: var(--space-md) var(--space-md) var(--space-sm);
}

.header-band {
  background: rgba(245, 242, 235, 0.55);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
  border: var(--border-field);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  box-shadow: 0 0.5rem 1.75rem rgba(35, 39, 42, 0.08);
}

.brand-plaintext-lock {
  flex: 0 1 auto;
  max-width: min(72%, 20rem);
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.5vw, 1.875rem);
  letter-spacing: 0.035em;
  color: var(--color-granite);
}

.desktop-nav-matrix {
  display: flex;
  flex-wrap: wrap;
  flex: 1 1 auto;
  justify-content: flex-end;
  align-items: center;
  gap: var(--space-sm);
}

.desktop-nav-matrix a {
  font-family: var(--font-grid);
  font-size: clamp(0.68rem, 1.05vw, 0.78125rem);
  text-decoration: none;
  color: var(--color-granite);
  padding: var(--space-xs) var(--space-sm);
  border: 0.0625rem dashed transparent;
}

.desktop-nav-matrix a:hover,
.desktop-nav-matrix a:focus-visible {
  border-color: rgba(59, 82, 95, 0.45);
  outline: none;
}

.burger-slot-end {
  display: none;
  margin-inline-start: auto;
  align-items: center;
}

.nav-toggle-glasspill {
  display: inline-flex;
  cursor: pointer;
  padding: var(--space-xs);
  gap: var(--space-xs);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  margin-left: auto;
  border-radius: var(--radius-md);
  background: transparent;
  border: var(--border-field);
}

.nav-toggle-focusline {
  display: inline-block;
  width: clamp(2.625rem, 10vw, 3.0625rem);
  height: 0.0875rem;
  background-color: currentColor;
  transition: transform var(--transition-fast);
}

.nav-overlay-panel-shell {
  position: fixed;
  inset: 0;
  z-index: 500;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.nav-overlay-panel-shell[data-open-state='open'] {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-overlay-dimbackdrop {
  position: absolute;
  inset: 0;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  background-color: rgba(35, 39, 42, 0.45);
}

.nav-overlay-sheetglass {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: clamp(76%, calc(100% - var(--space-md)), calc(26rem));
  transform: translateX(100%);
  background: rgba(245, 242, 235, 0.78);
  border-inline-start: var(--border-field);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-fast);
}

.nav-overlay-panel-shell[data-open-state='open'] .nav-overlay-sheetglass {
  transform: translateX(0);
}

.overlay-nav-anchorstack {
  list-style: none;
  padding: clamp(10vh, 8rem, 12rem) var(--space-lg) var(--space-lg);
  margin: 0;
  flex: 1;
  overflow: auto;
  gap: 15px;
  display: flex;
  flex-direction: column;
}

.overlay-nav-anchorstack a {
  font-family: var(--font-grid);
  color: inherit;
  text-decoration: none;
  padding: var(--space-sm);
  border-bottom: 0.0625rem dashed rgba(59, 82, 95, 0.38);
}

.overlay-close-iconrow {
  display: flex;
  justify-content: flex-end;
  padding: var(--space-md);
  border-bottom: var(--border-field);
}

.overlay-dismiss-buttonsoft {
  background: transparent;
  border: var(--border-field);
  padding: var(--space-xxs) var(--space-sm);
  font-family: var(--font-grid);
  cursor: pointer;
}

.main-doc-body {
  flex: 1;
  width: 100%;
}

.section-reading-width {
  width: min(72rem, 92%);
  margin: 0 auto;
  padding-block: var(--space-xl);
}

.section-heading-shell {
  position: relative;
  margin-bottom: var(--space-lg);
}

.section-heading-plain {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.6875rem);
  margin: 0 0 var(--space-sm);
}

.coordinate-microtag {
  font-family: var(--font-grid);
  font-size: var(--coordinate-size);
  letter-spacing: 0.092em;
  color: rgba(59, 82, 95, 0.78);
}

.lede-textblock {
  max-width: 68ch;
}

.glass-sheet-panel {
  background: rgba(245, 242, 235, 0.46);
  border: var(--border-field);
  padding: clamp(1rem, 3vw, 1.6875rem);
  backdrop-filter: blur(calc(var(--blur-glass) - 6px));
  -webkit-backdrop-filter: blur(calc(var(--blur-glass) - 6px));
}

.grid-twocol-asym {
  display: grid;
  grid-template-columns: minmax(0, 56%) minmax(0, 44%);
  gap: var(--space-lg);
  align-items: start;
}

.grid-three-kit {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-lg);
}

.logbook-photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(40%, 1fr));
  gap: var(--space-md);
}

.monospace-micro {
  font-family: var(--font-grid);
  font-size: 0.84375rem;
}

.cta-softlink {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  padding: var(--space-xs) var(--space-lg);
  background: transparent;
  color: inherit;
  font-family: var(--font-grid);
  border: 0.125rem solid var(--color-silt);
  letter-spacing: 0.065em;
  margin-top: var(--space-sm);
}

.cta-softlink:hover,
.cta-softlink:focus-visible {
  background-color: rgba(197, 155, 99, 0.16);
}

/* Full-width banners: text stacking above photographic layer */
.viewport-banner-frame {
  position: relative;
  width: 100vw;
  margin-inline: calc(50% - 50vw);
  min-height: var(--banner-min-height);
  display: flex;
  flex-direction: column;
}

.viewport-banner-shell {
  flex: 1;
  padding: clamp(3.5vh, 3rem, 5rem) clamp(4%, var(--space-lg), 8%);
}

.viewport-banner-intro {
  flex: none;
}

.viewport-banner-intro .glass-sheet-panel {
  max-width: 46rem;
}

.viewport-banner-intro {
  padding-bottom: var(--space-lg);
}

.viewport-banner-cover {
  position: relative;
  flex: none;
}

.viewport-banner-cover figure {
  margin: 0;
  overflow: hidden;
  border-inline: none;
}

.viewport-banner-cover img.banner-photo-objectfit {
  width: 100%;
  max-height: clamp(18rem, 44vw, 28rem);
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.viewport-banner-wavebar {
  position: absolute;
  inset-inline: -2%;
  top: clamp(-22%, -3rem, -1.5rem);
  height: 0.0875rem;
  background-image: repeating-linear-gradient(90deg, var(--color-silt), transparent 1.0625rem);
  opacity: 0.82;
}

.subpage-banner-slim img.banner-photo-objectfit {
  aspect-ratio: 21 / 9;
}

.subpage-banner-slim .viewport-banner-shell {
  padding-top: clamp(2rem, 5vw, 3.5rem);
}

.strip-asym-gallery {
  display: grid;
  grid-template-columns: minmax(0, 61%) minmax(0, 39%);
  gap: var(--space-md);
  align-items: stretch;
}

.media-frame-flat {
  border: var(--border-field);
  background: rgba(59, 82, 95, 0.04);
  overflow: hidden;
}

.media-frame-flat img.photo-fieldsample {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.split-label-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-xs);
  gap: var(--space-sm);
  border-bottom: var(--border-field);
  font-family: var(--font-grid);
  font-size: 0.75rem;
}

.simulator-pane {
  padding: clamp(1rem, 3vw, 1.5rem);
}

.simulator-choice-fieldset {
  border: none;
  margin: var(--space-sm) 0;
  padding: 0;
}

.simulator-route-select label {
  display: block;
  margin-bottom: var(--space-xxs);
}

.simulator-route-select select {
  font-family: var(--font-grid);
  width: 100%;
  padding: var(--space-xs);
  border: var(--border-field);
  background: transparent;
}

.simulator-choice-fieldset legend {
  font-family: var(--font-display);
}

.sim-radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.sim-radio-note {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: clamp(0.75rem, 2vw, 0.84375rem);
}

.sim-results-panel {
  border-top: var(--border-field);
  margin-top: var(--space-lg);
}

.card-product-field {
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: var(--space-sm);
  border: var(--border-field);
  padding: var(--space-md);
  background-color: rgba(245, 242, 235, 0.55);
}

.card-product-photo {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

.contact-layout-gridwrap {
  display: grid;
  grid-template-columns: minmax(0, 54%) minmax(0, 46%);
  gap: var(--space-lg);
  align-items: start;
}

.form-field-lock {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--space-md);
}

.form-field-lock label {
  font-family: var(--font-grid);
  font-size: 0.75rem;
}

.form-field-lock input[type='text'],
.form-field-lock input[type='email'],
.form-field-lock textarea {
  border: var(--border-field);
  padding: var(--space-xs);
  background: transparent;
  font-family: var(--font-body);
}

.mapshell-aspectratio {
  position: relative;
  width: 100%;
  overflow: hidden;
  border: var(--border-field);
  aspect-ratio: 16 / 10;
}

.mapshell-aspectratio iframe {
  border: none;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.consent-checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
}

.thank-you-centerstack {
  min-height: 70vh;
  display: grid;
  place-items: center;
  padding: var(--space-lg);
}

.error-stage-wrap {
  min-height: 70vh;
}

.footer-min-shell {
  width: min(74rem, 92%);
  margin: 0 auto;
  padding-block: clamp(1rem, 2vw, 1.6875rem);
  border-top: var(--border-field);
}

.footer-flexwrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: space-between;
  align-items: center;
}

.footer-nav-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-nav-row a {
  color: inherit;
  text-decoration: none;
  border-bottom: 0.0625rem dashed rgba(59, 82, 95, 0.45);
}

.privacy-sheet-float {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  z-index: 400;
  pointer-events: none;
  visibility: hidden;
  opacity: 0;
}

.privacy-sheet-float[data-visible='true'] {
  pointer-events: auto;
  visibility: visible;
  opacity: 1;
}

.privacy-panel-body {
  max-width: 46rem;
  margin: auto;
  transform: translateY(115%);
}

.privacy-sheet-float[data-visible='true'] .privacy-panel-body {
  transform: translateY(0%);
  transition: transform var(--transition-fast);
}

.privacy-glass-sheet {
  background: rgba(245, 242, 235, 0.78);
  border: var(--border-field);
  border-bottom: none;
  padding: var(--space-md);
  backdrop-filter: blur(var(--blur-glass));
  -webkit-backdrop-filter: blur(var(--blur-glass));
}

.privacy-sheet-actionsrow {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.privacy-accept-strong {
  background: transparent;
  border: 0.125rem solid var(--color-silt);
  padding: var(--space-xs) var(--space-lg);
}

.privacy-softlink-plain {
  text-decoration: none;
  padding: var(--space-xs) var(--space-sm);
}

.legal-reading-column {
  max-width: 60ch;
  margin-inline: auto;
}

.legal-reading-column h2 {
  font-family: var(--font-display);
  margin-block: var(--space-lg) var(--space-sm);
}

.legal-reading-column ul {
  padding-inline-start: 1rem;
}

.legal-reading-column ul li + li {
  margin-top: var(--space-xs);
}

.timeline-logstack {
  display: grid;
  gap: var(--space-lg);
}

.timeline-logentry {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-sm);
  border-inline-start: var(--border-field);
  padding-inline-start: var(--space-md);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    transition-duration: 0.01ms;
  }

  body {
    scroll-behavior: auto;
  }
}

@media screen and (max-width: 63.9375rem) {
  .desktop-nav-matrix {
    display: none;
  }

  .burger-slot-end {
    display: flex;
    justify-content: flex-end;
  }

  .grid-twocol-asym,
  .strip-asym-gallery,
  .contact-layout-gridwrap {
    grid-template-columns: 1fr;
  }

  .grid-three-kit {
    grid-template-columns: 1fr;
  }
}

@media screen and (min-width: 64rem) {
  .timeline-logentry {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1fr);
    align-items: start;
    column-gap: var(--space-lg);
  }
}