/* ==========================================================================
   Solum Surveying: homepage
   Brand line: "Know your ground."
   Identity system built around the existing wordmark (Solum Blue #3482FE,
   black keyline), the language of survey drawings, and site hi-vis.
   ========================================================================== */

/* ---------------------------------------------------------------- fonts -- */
@font-face {
  font-family: "Archivo";
  src: url("/case-studies/concepts/_assets/14d7acbc846e8cf876bbbcf6.woff2") format("woff2");
  font-weight: 400 900;
  font-stretch: 75% 100%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Archivo";
  src: url("/case-studies/concepts/_assets/65f537bec26db5d2511bc8c6.woff2") format("woff2");
  font-weight: 600 900;
  font-stretch: 75% 100%;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/case-studies/concepts/_assets/28901589274f810821859749.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("/case-studies/concepts/_assets/0e765893a3317bb5e3ef9dfb.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* --------------------------------------------------------------- tokens -- */
:root {
  /* core palette */
  --bedrock: #0B1524;
  --bedrock-2: #111E31;
  --bedrock-3: #1B2B42;
  --paper: #F3F1EC;
  --paper-2: #EAE6DD;
  --white: #FFFFFF;

  --ink: #0B1524;
  --ink-2: #3D4A5C;
  --ink-3: #5E6979;
  --line: #DCD6CA;
  --line-2: #E8E4DB;

  --blue: #3482FE;          /* Solum Blue, sampled from the wordmark */
  --blue-ink: #1C5FD4;      /* Solum Blue for text on light grounds */
  --blue-soft: #DCE8FF;
  --hivis: #FF6A1A;         /* calls to action only */
  --hivis-2: #FF8442;

  --on-dark: #E9EEF5;
  --on-dark-2: #9FB0C6;
  --line-dark: rgba(233, 238, 245, .14);

  /* buried services colour code (diagrams) */
  --u-elec: #F0453A;
  --u-gas: #F7B500;
  --u-water: #3482FE;
  --u-tel: #2DB37A;
  --u-drain: #B07A47;
  --u-unknown: #C06BFF;

  /* type */
  --f-sans: "Archivo", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* layout */
  --wrap: 1320px;
  --gutter: clamp(16px, 4vw, 40px);
  --section: clamp(76px, 10vw, 144px);
  --header-h: 78px;

  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 22px;

  --shadow-1: 0 1px 2px rgba(11, 21, 36, .06), 0 4px 14px rgba(11, 21, 36, .06);
  --shadow-2: 0 2px 6px rgba(11, 21, 36, .08), 0 18px 40px rgba(11, 21, 36, .12);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  font-family: var(--f-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, picture, video { display: block; max-width: 100%; }
img { height: auto; }
.svc__media picture, .proj__media picture, .deliv__frame picture { width: 100%; height: 100%; }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: .18em; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4 {
  margin: 0;
  font-weight: 800;
  font-stretch: 82%;
  line-height: 1.02;
  letter-spacing: -.012em;
  text-wrap: balance;
}
p { margin: 0; text-wrap: pretty; }
ul, ol { margin: 0; padding: 0; list-style: none; }
figure { margin: 0; }
address { font-style: normal; }
abbr[title] { text-decoration: none; }
::selection { background: var(--blue); color: #fff; }

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 3px;
  border-radius: 4px;
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip {
  position: absolute; left: 16px; top: -100px; z-index: 1000;
  background: var(--bedrock); color: #fff; padding: 12px 18px; border-radius: var(--r-sm);
  font-weight: 700; text-decoration: none;
}
.skip:focus { top: 16px; }

.icon {
  width: 1.15em; height: 1.15em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round;
}

.container {
  width: 100%;
  max-width: calc(var(--wrap) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ------------------------------------------------------------ type kit -- */
.label {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-weight: 500;
  font-size: .75rem; line-height: 1.2; letter-spacing: .1em; text-transform: uppercase;
  color: var(--blue-ink);
}
.label::before {
  /* survey control point */
  content: ""; width: 11px; height: 11px; flex: none; border-radius: 50%;
  border: 1.5px solid currentColor;
  background: radial-gradient(circle, currentColor 0 1.6px, transparent 2.1px);
}
.label--light { color: var(--blue); }

.lead { font-size: clamp(1.0625rem, .98rem + .35vw, 1.25rem); line-height: 1.55; color: var(--ink-2); }

.soft { color: var(--ink-3); }
.accent { font-style: italic; font-weight: 900; color: var(--blue); letter-spacing: -.02em; padding-right: .04em; }

.link {
  color: var(--blue-ink); font-weight: 600; text-decoration: underline;
  text-decoration-color: rgba(28, 95, 212, .35); text-underline-offset: .22em;
  transition: text-decoration-color .2s;
}
.link:hover { text-decoration-color: currentColor; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips li {
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .04em; line-height: 1;
  padding: 6px 9px; border: 1px solid var(--line); border-radius: 999px; color: var(--ink-2);
  background: var(--white);
}

.ticks { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.ticks li { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .9375rem; color: var(--ink-2); }
.ticks .icon { color: var(--blue-ink); stroke-width: 2.4; width: 1.05em; height: 1.05em; }

/* -------------------------------------------------------------- buttons -- */
.btn {
  --h: 50px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 22px; border-radius: var(--r-sm);
  border: 1.5px solid transparent;
  font-weight: 700; font-stretch: 92%; font-size: 1rem; line-height: 1; letter-spacing: .005em;
  text-decoration: none; white-space: nowrap;
  transition: transform .2s var(--ease), background-color .2s, border-color .2s, color .2s, box-shadow .2s;
}
.btn .icon { transition: transform .25s var(--ease); }
.btn:hover .icon:last-child { transform: translateX(3px); }
.btn:active { transform: translateY(1px); }
.btn--sm { --h: 42px; padding: 0 16px; font-size: .9375rem; }
.btn--lg { --h: 58px; padding: 0 26px; font-size: 1.0625rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--hivis); color: var(--bedrock);
  box-shadow: 0 1px 0 rgba(255, 255, 255, .25) inset, 0 6px 16px -6px rgba(255, 106, 26, .55);
}
.btn--primary:hover { background: var(--hivis-2); box-shadow: 0 1px 0 rgba(255, 255, 255, .25) inset, 0 10px 22px -8px rgba(255, 106, 26, .7); }

.btn--line { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn--line:hover { background: var(--ink); color: var(--white); }

/* --------------------------------------------------------------- header -- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--white);
  border-bottom: 1px solid transparent;
  transition: border-color .25s, box-shadow .25s;
}
.site-header.is-scrolled { border-bottom-color: var(--line-2); box-shadow: 0 6px 24px -18px rgba(11, 21, 36, .5); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; height: var(--header-h); }

.brand { display: block; flex: none; border-radius: 6px; }
.brand img { width: clamp(176px, 15vw + 40px, 238px); height: auto; }

.nav { margin-left: auto; }
.nav__list { display: flex; gap: 4px; }
.nav__list a {
  position: relative; display: block; padding: 10px 12px;
  font-weight: 600; font-size: .9688rem; text-decoration: none; color: var(--ink);
}
.nav__list a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 4px; height: 2px;
  background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav__list a:hover::after, .nav__list a.is-current::after { transform: scaleX(1); }

.site-header__actions { display: flex; align-items: center; gap: 14px; }
.header-phone {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none;
  font-weight: 800; font-stretch: 88%; font-size: 1.0625rem; color: var(--ink); padding: 6px 2px;
}
.header-phone .icon { width: 36px; height: 36px; padding: 9px; border-radius: 50%; background: var(--paper); color: var(--blue-ink); stroke-width: 2; }
.header-phone__label { display: flex; flex-direction: column; line-height: 1.1; }
.header-phone__label span { font-family: var(--f-mono); font-weight: 500; font-size: .625rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 3px; }

.burger {
  display: none; width: 46px; height: 46px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--white); align-items: center; justify-content: center;
}
.burger .icon { width: 22px; height: 22px; }
.burger .icon--close { display: none; }
.burger[aria-expanded="true"] .icon--open { display: none; }
.burger[aria-expanded="true"] .icon--close { display: block; }

.mobile-nav {
  position: absolute; left: 0; right: 0; top: 100%;
  background: var(--white); border-top: 1px solid var(--line-2);
  padding: 8px var(--gutter) 24px; box-shadow: 0 24px 40px -24px rgba(11, 21, 36, .45);
  max-height: calc(100svh - var(--header-h)); overflow-y: auto;
}
.mobile-nav ul { margin-bottom: 18px; }
.mobile-nav li + li { border-top: 1px solid var(--line-2); }
.mobile-nav a:not(.btn) { display: block; padding: 16px 2px; font-weight: 700; font-stretch: 86%; font-size: 1.375rem; text-decoration: none; }

@media (max-width: 1179px) {
  .nav, .header-phone__label { display: none; }
  .burger { display: inline-flex; }
  .site-header__actions { gap: 10px; }
  .header-phone .icon { width: 46px; height: 46px; padding: 12px; border-radius: 10px; }
}
@media (max-width: 1023px) { :root { --header-h: 66px; } }
@media (max-width: 639px) { .header-cta { display: none; } }
@media (min-width: 1180px) { .mobile-nav { display: none !important; } }

/* ----------------------------------------------------------------- hero -- */
.hero {
  position: relative;
  display: grid;
  grid-template-columns: var(--gutter) minmax(0, 1fr) var(--gutter);
  background: var(--paper);
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: url("/case-studies/concepts/_assets/317cffa3f9803cf6aa8b393a.svg") 0 0 / 1200px auto repeat;
  opacity: .055;
}
.hero__copy {
  grid-column: 2;
  padding: clamp(36px, 5.2vw, 76px) 0 clamp(36px, 4.6vw, 60px);
  display: flex; flex-direction: column; gap: clamp(20px, 2.2vw, 28px);
}
.hero__title { display: flex; flex-direction: column; font-stretch: 76%; letter-spacing: -.022em; }
.hero__kicker { margin-bottom: clamp(14px, 2vw, 22px); font-stretch: normal; letter-spacing: .1em; }
.hero__line { display: block; font-size: clamp(3.2rem, 1.2rem + 6.6vw, 7rem); line-height: .9; }
.hero__line .accent { letter-spacing: -.03em; }
.hero__line--sub {
  margin-top: clamp(10px, 1.2vw, 18px);
  font-size: clamp(1.75rem, 1.1rem + 2.4vw, 3rem); line-height: 1; font-weight: 700; font-stretch: 84%;
  color: var(--ink-2); letter-spacing: -.012em;
}
.hero__lead { max-width: 38rem; font-size: clamp(1.0625rem, 1rem + .4vw, 1.25rem); line-height: 1.55; color: var(--ink-2); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 519px) { .hero__ctas .btn { width: 100%; } }
.hero__accreds { margin-top: clamp(4px, 1.5vw, 18px); padding-top: 22px; border-top: 1px solid var(--line); }
.hero__accreds-label { font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 14px; }

.mono-logos { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 28px; }
.mono-logos img { height: 34px; width: auto; opacity: .62; }

.hero__panel {
  grid-column: 1 / -1;
  position: relative;
  background: var(--bedrock);
  padding: 28px var(--gutter) 36px;
  display: flex; flex-direction: column; justify-content: center; gap: 16px;
  color: var(--on-dark);
}
.hero__panel::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: url("/case-studies/concepts/_assets/1ee1c0d8cab8922e986d1e2c.svg") 30% 40% / 1300px auto repeat;
  opacity: .05;
}

@media (min-width: 1024px) {
  .hero {
    grid-template-columns:
      minmax(var(--gutter), 1fr)
      minmax(0, calc(var(--wrap) * .5 - 24px))
      48px
      minmax(0, calc(var(--wrap) * .5 - 24px))
      minmax(var(--gutter), 1fr);
    min-height: min(920px, calc(100svh - var(--header-h)));
  }
  .hero__copy { grid-column: 2; justify-content: center; padding-right: 8px; }
  .hero__panel { grid-column: 3 / -1; padding: 48px var(--gutter) 48px 56px; }
}
@media (min-width: 1280px) {
  .hero__panel { padding-left: 64px; }
}

/* survey lens */
.scan {
  position: relative; width: 100%; max-width: 680px;
  border: 1px solid var(--line-dark); border-radius: var(--r-lg);
  background: var(--bedrock-2);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, .6);
  overflow: hidden;
}
.scan__bar {
  display: flex; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--line-dark);
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-dark-2);
}
.scan__live { display: inline-flex; align-items: center; gap: 8px; color: var(--on-dark); }
.scan__live i { width: 8px; height: 8px; border-radius: 50%; background: var(--u-tel); box-shadow: 0 0 0 0 rgba(45, 179, 122, .6); animation: pulse 2.4s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(45, 179, 122, .55); } 70% { box-shadow: 0 0 0 9px rgba(45, 179, 122, 0); } 100% { box-shadow: 0 0 0 0 rgba(45, 179, 122, 0); } }

.scan__stage { position: relative; cursor: crosshair; touch-action: pan-y; outline-offset: -3px; }
.scan__stage:focus-visible { outline-color: var(--hivis); border-radius: 0; }
.plan { width: 100%; height: auto; aspect-ratio: 640 / 520; user-select: none; -webkit-user-select: none; }

.plan__grid path { stroke: rgba(233, 238, 245, .07); stroke-width: 1; fill: none; }
.plan__gridtext text, .plan__labels text, .plan__north text, .plan__scale text {
  font-family: var(--f-mono); font-size: 8.5px; letter-spacing: .06em; fill: rgba(233, 238, 245, .4);
}
.plan__labels text { fill: rgba(233, 238, 245, .5); }
.plan__topo path, .plan__topo rect, .plan__topo circle { fill: none; stroke: rgba(233, 238, 245, .48); stroke-width: 1.1; }
.plan__topo .t-kerb { stroke: rgba(233, 238, 245, .72); stroke-width: 1.5; }
.plan__topo .t-bof { stroke: rgba(233, 238, 245, .32); }
.plan__topo .t-mark { stroke: rgba(233, 238, 245, .34); stroke-dasharray: 10 8; }
.plan__topo .t-bldg { fill: url(#p-hatch); stroke: rgba(233, 238, 245, .6); }
.plan__topo .t-fence { stroke-dasharray: 2 4; stroke: rgba(233, 238, 245, .42); }
.plan__topo .t-bay { stroke: rgba(233, 238, 245, .22); }
.plan__topo .t-tree circle { stroke: rgba(45, 179, 122, .65); }
.plan__topo .t-mh rect { fill: var(--bedrock-2); stroke: rgba(233, 238, 245, .8); }
.plan__topo .t-small rect, .plan__topo .t-small circle { stroke: rgba(233, 238, 245, .55); }
.plan__north path { stroke: rgba(233, 238, 245, .55); fill: none; stroke-width: 1.1; }
.plan__north path:last-child { fill: rgba(233, 238, 245, .55); }
.plan__scale path { stroke: rgba(233, 238, 245, .5); stroke-width: 1.1; fill: none; }

.plan__lensbg { fill: #060D18; opacity: .78; }
.u path, .u rect { fill: none; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.u--elec { stroke: var(--u-elec); }
.u--gas { stroke: var(--u-gas); }
.u--water { stroke: var(--u-water); }
.u--tel { stroke: var(--u-tel); }
.u--tel rect { fill: var(--bedrock-2); stroke-width: 1.8; }
.u--sw { stroke: var(--u-drain); }
.u--sw path { stroke-dasharray: 7 5; stroke-width: 2.4; }
.u--foul { stroke: var(--u-drain); }
.u--foul path { stroke-width: 3.6; }
.u--foul .u-flow { stroke-width: 1.6; stroke: #F3D9BF; }
.u--unknown { stroke: var(--u-unknown); }
.u--unknown path { stroke-dasharray: 3 6; }
.u-labels text { font-family: var(--f-mono); font-size: 8.5px; font-weight: 500; letter-spacing: .06em; }
.u-labels .l-elec { fill: var(--u-elec); } .u-labels .l-gas { fill: var(--u-gas); }
.u-labels .l-water { fill: #79AEFF; } .u-labels .l-tel { fill: var(--u-tel); }
.u-labels .l-sw, .u-labels .l-foul { fill: #D9A877; } .u-labels .l-unknown { fill: var(--u-unknown); }

.plan__focus .f { opacity: 0; transition: opacity .3s; }
.plan[data-focus="elec"] .f--elec, .plan[data-focus="gas"] .f--gas, .plan[data-focus="water"] .f--water,
.plan[data-focus="tel"] .f--tel, .plan[data-focus="foul"] .f--foul, .plan[data-focus="foul"] .f--sw,
.plan[data-focus="unknown"] .f--unknown { opacity: 1; }
.plan[data-focus] .plan__topo { opacity: .55; transition: opacity .3s; }

.plan__lens { pointer-events: none; }
.lens-ring { fill: none; stroke: var(--white); stroke-width: 1.6; }
.lens-ticks { fill: none; stroke: rgba(255, 255, 255, .55); stroke-width: 5; stroke-dasharray: 1 5.08; transform-origin: 0 0; animation: spin 24s linear infinite; }
.lens-cross { stroke: var(--hivis); stroke-width: 1.6; fill: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.plan.is-all .plan__reveal { clip-path: none; }
.plan.is-all .plan__lensbg, .plan.is-all .plan__lens { opacity: 0; }
.plan.is-all .plan__topo { opacity: .6; }

.readout {
  position: absolute; left: 0; top: 0; z-index: 2;
  display: inline-flex; align-items: center; gap: 8px;
  transform: translate3d(62%, 300px, 0);
  padding: 7px 11px 7px 9px; border-radius: 6px;
  background: rgba(6, 13, 24, .92); border: 1px solid rgba(233, 238, 245, .18);
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .04em; color: var(--on-dark); white-space: nowrap;
  pointer-events: none; transition: opacity .2s;
}
.readout__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--on-dark-2); flex: none; transition: background-color .2s; }

.scan__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 12px 16px; flex-wrap: wrap;
  padding: 12px 14px; border-top: 1px solid var(--line-dark);
}
.legend { display: flex; flex-wrap: wrap; gap: 4px; }
.leg {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 9px; border-radius: 999px; border: 1px solid transparent; background: transparent;
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .03em; color: var(--on-dark-2);
  transition: border-color .2s, color .2s, background-color .2s;
}
.leg i { width: 14px; height: 3px; border-radius: 2px; background: currentColor; }
.leg[data-u="elec"] i { background: var(--u-elec); } .leg[data-u="gas"] i { background: var(--u-gas); }
.leg[data-u="water"] i { background: var(--u-water); } .leg[data-u="tel"] i { background: var(--u-tel); }
.leg[data-u="foul"] i { background: var(--u-drain); }
.leg[data-u="unknown"] i { background: repeating-linear-gradient(90deg, var(--u-unknown) 0 3px, transparent 3px 6px); }
.leg:hover, .leg.is-near { color: var(--on-dark); border-color: var(--line-dark); }
.leg[aria-pressed="true"] { color: var(--white); border-color: rgba(233, 238, 245, .4); background: rgba(233, 238, 245, .06); }
.scan__toggle {
  padding: 8px 13px; border-radius: 999px; border: 1px solid rgba(233, 238, 245, .3); background: transparent;
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-dark);
  transition: background-color .2s, color .2s;
}
.scan__toggle:hover { background: rgba(233, 238, 245, .08); }
.scan__toggle[aria-pressed="true"] { background: var(--on-dark); color: var(--bedrock); }
.scan__hint { position: relative; max-width: 680px; font-size: .9375rem; color: var(--on-dark-2); }

@media (max-width: 639px) {
  .scan { border-radius: var(--r-md); }
  .scan__ref { display: none; }
  .legend { gap: 2px; }
  .leg { padding: 5px 7px; font-size: .625rem; }
  .readout { font-size: .625rem; }
}

/* ------------------------------------------------------------ clients -- */
.clients { padding: clamp(56px, 7vw, 92px) 0 clamp(64px, 8vw, 104px); background: var(--white); border-bottom: 1px solid var(--line-2); }
.clients__title {
  max-width: 44rem; margin: 0 auto clamp(28px, 4vw, 44px); text-align: center;
  font-family: var(--f-mono); font-weight: 500; font-size: .8125rem; letter-spacing: .08em; line-height: 1.6; text-transform: uppercase; color: var(--ink-3);
}
.marquee {
  --gap: clamp(40px, 5vw, 72px);
  position: relative; overflow: hidden; padding-block: 14px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee__track { display: flex; width: max-content; animation: marquee 64s linear infinite; }
.marquee--reverse .marquee__track { animation-direction: reverse; animation-duration: 72s; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__list { display: flex; align-items: center; gap: var(--gap); padding-right: var(--gap); }
.marquee__list img { height: 34px; width: auto; max-width: none; opacity: .58; transition: opacity .25s; }
.marquee__list img:hover { opacity: .95; }
@supports (height: calc(1px * sqrt(4))) {
  .marquee__list img { height: min(54px, calc(58px / sqrt(var(--r)))); }
  .mono-logos img { height: min(42px, calc(48px / sqrt(var(--r)))); }
}
@keyframes marquee { to { transform: translateX(-50%); } }

.sectors {
  display: grid; gap: 1px; margin-top: clamp(40px, 6vw, 72px);
  background: var(--line-2); border: 1px solid var(--line-2); border-radius: var(--r-lg); overflow: hidden;
  grid-template-columns: 1fr;
}
.sector { background: var(--white); padding: clamp(22px, 2.6vw, 32px); display: flex; flex-direction: column; gap: 10px; }
.sector h3 { font-size: 1.375rem; font-stretch: 86%; }
.sector p { color: var(--ink-2); font-size: 1rem; }
.sector__who { margin-top: auto; padding-top: 10px; font-family: var(--f-mono); font-size: .6875rem !important; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-3) !important; }
@media (min-width: 640px) { .sectors { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .sectors { grid-template-columns: repeat(4, 1fr); } }

/* -------------------------------------------------------- section head -- */
.section-head {
  display: grid; gap: 18px 48px; align-items: end;
  margin-bottom: clamp(40px, 5.5vw, 72px);
}
.section-head h2 { margin-top: 18px; font-size: clamp(2.25rem, 1.3rem + 3.3vw, 4.1rem); }
.section-head .lead { max-width: 34rem; }
@media (min-width: 1024px) {
  .section-head { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
  .section-head .lead { justify-self: end; }
}
.section-head--dark .lead { color: var(--on-dark-2); }
.section-head--dark .soft { color: var(--on-dark-2); }

/* ------------------------------------------------------------- services -- */
.services { padding: var(--section) 0; background: var(--paper); }
.services__layout { display: grid; gap: 40px; }
.services__aside { display: none; }

@media (min-width: 1100px) {
  .services__layout { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(40px, 4vw, 64px); align-items: start; }
  .services__aside { display: block; position: sticky; top: calc(var(--header-h) + 24px); }
}

.xsec-card {
  background: var(--white); border: 1px solid var(--line-2); border-radius: var(--r-lg);
  padding: 18px 18px 12px; box-shadow: var(--shadow-1);
}
.xsec { width: 100%; height: auto; max-height: calc(100svh - var(--header-h) - 130px); aspect-ratio: 480 / 720; margin-inline: auto; }
.xsec .z { transition: opacity .6s var(--ease); }
.xsec[data-zone="below"] .z:not(.z--below),
.xsec[data-zone="on"] .z:not(.z--on),
.xsec[data-zone="above"] .z:not(.z--above) { opacity: .2; }
.xsec__grid path { stroke: #EFECE5; stroke-width: 1; fill: none; }
.xsec__ground { stroke: var(--ink); stroke-width: 2.4; fill: none; }
.xsec text { font-family: var(--f-mono); font-size: 9px; letter-spacing: .06em; fill: var(--ink-2); }
.xsec__strata text { fill: rgba(11, 21, 36, .5); font-size: 8.5px; }
.xsec__scale path { stroke: var(--ink-2); stroke-width: 1; fill: none; }
.xsec__scale text { fill: var(--ink-2); font-size: 8.5px; }
.xsec__shaft { fill: #F1EADF; stroke: var(--ink); stroke-width: 1.2; }
.xsec__rungs { stroke: #8F7F6B; stroke-width: 1.2; }
.xsec__pipe { fill: #E7CFB5; stroke: var(--u-drain); stroke-width: 2; }
.xsec__flow { stroke: #7C552F; stroke-width: 1.4; fill: none; }
.xsec__note { fill: #6B4A2B !important; font-weight: 500; }
.xsec__light { fill: var(--u-gas); opacity: .38; }
.xsec__crawler { fill: var(--ink); }
.xsec__cam { fill: var(--u-gas); }
.xsec__wheel { fill: var(--ink); }
.xsec__cable { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 3 3; fill: none; }
.xsec__u { stroke: var(--ink); stroke-width: 1.2; }
.xsec__u--water { fill: var(--u-water); } .xsec__u--elec { fill: var(--u-elec); } .xsec__u--tel { fill: var(--u-tel); }
.xsec__u--gas { fill: var(--u-gas); } .xsec__u--unknown { fill: #F3E6FF; stroke: var(--u-unknown); stroke-dasharray: 2 2; stroke-width: 1.6; }
.xsec__ulabels text { font-size: 8px; font-weight: 500; fill: var(--ink); }
.xsec__gpr { stroke: var(--hivis); stroke-width: 1.2; stroke-dasharray: 3 4; fill: none; opacity: .75; }
.xsec__sight { stroke: var(--blue-ink); stroke-width: 1; stroke-dasharray: 4 3; fill: none; }
.xsec__tripod { stroke: var(--ink); stroke-width: 1.6; fill: none; stroke-linecap: round; }
.xsec__inst { fill: var(--u-gas); stroke: var(--ink); stroke-width: 1.2; }
.xsec__scanner { fill: var(--bedrock); stroke: var(--ink); stroke-width: 1.2; }
.xsec__lensdot { fill: var(--blue); }
.xsec__pole { stroke: var(--ink); stroke-width: 1.6; }
.xsec__prism { fill: var(--white); stroke: var(--hivis); stroke-width: 2; }
.xsec__cover { fill: var(--ink); }
.xsec__gprcart { fill: var(--hivis); stroke: var(--ink); stroke-width: 1.2; }
.xsec__handle { stroke: var(--ink); stroke-width: 1.6; fill: none; stroke-linecap: round; }
.xsec__levels text { fill: var(--ink-2); font-size: 8.5px; }
.xsec__ray { stroke: var(--blue); stroke-width: 1; opacity: .4; fill: none; }
.xsec__pc path { fill: none; stroke: var(--blue); stroke-width: 2.6; stroke-linecap: round; stroke-dasharray: 0 4.6; }
.xsec__dim { stroke: var(--ink-2); stroke-width: 1; fill: none; }
.xsec__dimtext { fill: var(--ink-2); }
.xsec__cone { stroke: var(--blue-ink); stroke-width: 1; stroke-dasharray: 5 4; fill: none; opacity: .55; }
.xsec__footprint { stroke: var(--blue); stroke-width: 5; opacity: .3; }
.xsec__drone path { stroke: var(--ink); stroke-width: 1.8; fill: none; }
.xsec__drone rect { fill: var(--ink); }
.xsec__drone ellipse { fill: rgba(11, 21, 36, .15); stroke: var(--ink); stroke-width: 1; }
.xsec__brackets path { stroke: var(--line); stroke-width: 1.4; fill: none; transition: stroke .4s; }
.xsec__brackets text { fill: var(--ink-3); font-size: 8.5px; letter-spacing: .12em; transition: fill .4s; }
.xsec[data-zone="below"] .br--below path, .xsec[data-zone="on"] .br--on path, .xsec[data-zone="above"] .br--above path { stroke: var(--blue); stroke-width: 2; }
.xsec[data-zone="below"] .br--below text, .xsec[data-zone="on"] .br--on text, .xsec[data-zone="above"] .br--above text { fill: var(--blue-ink); font-weight: 500; }

.xsec-nav { display: flex; gap: 6px; justify-content: center; padding-top: 10px; border-top: 1px solid var(--line-2); margin-top: 8px; }
.xsec-nav a {
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; text-decoration: none;
  color: var(--ink-3); padding: 7px 10px; border-radius: 999px; transition: color .2s, background-color .2s;
}
.xsec-nav a:hover { color: var(--ink); }
.xsec-nav a.is-active { background: var(--bedrock); color: var(--white); }

.services__zones { display: grid; gap: clamp(56px, 7vw, 96px); }
.zone__head { display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; align-items: start; margin-bottom: 26px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.zone__index {
  font-family: var(--f-mono); font-weight: 500; font-size: .8125rem; letter-spacing: .08em; color: var(--blue-ink);
  padding: 6px 9px; border: 1.5px solid currentColor; border-radius: 6px; line-height: 1; margin-top: 4px;
}
.zone__title { font-size: clamp(1.875rem, 1.4rem + 1.6vw, 2.6rem); margin-bottom: 8px; }
.zone__head p:not(.zone__index) { color: var(--ink-2); max-width: 36rem; }
.zone__cards { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .zone__cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.zone__also { margin-top: 20px; font-size: .9375rem; color: var(--ink-2); }
.zone__also span {
  display: inline-block; margin-right: 10px; font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3);
}

.svc {
  display: flex; flex-direction: column; background: var(--white);
  border: 1px solid var(--line-2); border-radius: var(--r-md); overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.svc:hover { transform: translateY(-4px); box-shadow: var(--shadow-2); border-color: transparent; }
.svc__media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bedrock); }
.svc__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.svc:hover .svc__media img { transform: scale(1.04); }
.svc__media--art img { object-fit: cover; }
.svc__tag {
  position: absolute; left: 12px; top: 12px;
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .06em; text-transform: uppercase;
  padding: 6px 9px; border-radius: 6px; background: rgba(11, 21, 36, .82); color: var(--white);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.svc__body { display: flex; flex-direction: column; gap: 12px; padding: 20px 20px 22px; flex: 1; }
.svc__title { font-size: 1.4375rem; font-stretch: 86%; }
.svc__body > p { color: var(--ink-2); font-size: 1rem; line-height: 1.55; }
.svc__cta {
  margin-top: auto; padding-top: 6px;
  display: inline-flex; align-items: center; gap: 8px; align-self: flex-start;
  font-weight: 700; font-size: .9688rem; color: var(--blue-ink); text-decoration: none;
}
.svc__cta .icon { transition: transform .25s var(--ease); }
.svc__cta:hover .icon { transform: translateX(4px); }
.svc__cta:hover { text-decoration: underline; text-underline-offset: .22em; }

/* ----------------------------------------------------------------- band -- */
.band {
  position: relative; overflow: hidden; isolation: isolate;
  min-height: clamp(440px, 56vw, 720px);
  display: flex; align-items: flex-end;
  background: var(--bedrock); color: var(--white);
}
.band__media, .band__media img { position: absolute; inset: 0; width: 100%; height: 100%; }
.band__media img { object-fit: cover; object-position: 42% 50%; }
@media (min-width: 768px) { .band__media img { object-position: 8% 50%; } }
.band::after {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    linear-gradient(0deg, rgba(11, 21, 36, .94) 0%, rgba(11, 21, 36, .6) 34%, rgba(11, 21, 36, .08) 66%),
    linear-gradient(90deg, rgba(11, 21, 36, .45), transparent 50%);
}
.band__inner { position: relative; z-index: 1; padding-block: clamp(48px, 7vw, 96px); display: grid; gap: 18px; }
.band .label { color: var(--white); text-shadow: 0 1px 12px rgba(11, 21, 36, .8); }
.band__quote {
  max-width: 11.5ch; font-weight: 800; font-stretch: 78%; letter-spacing: -.02em; line-height: .96;
  font-size: clamp(2.6rem, 1.2rem + 4.2vw, 5.2rem); text-wrap: balance;
}
.band__quote span { color: var(--blue); font-style: italic; font-weight: 900; }
.band__target {
  position: absolute; z-index: 1; left: 50%; top: 50%;
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .1em; color: var(--white);
  transform: translate(-14px, -50%);
}
.band__target i {
  width: 28px; height: 28px; border-radius: 50%; flex: none;
  border: 1.5px solid var(--white);
  background: conic-gradient(var(--white) 0 90deg, transparent 0 180deg, var(--white) 0 270deg, transparent 0);
  box-shadow: 0 0 0 6px rgba(255, 255, 255, .12);
}
@media (max-width: 767px) { .band__target { display: none; } }

/* ------------------------------------------------------------------ why -- */
.why { position: relative; padding: var(--section) 0; background: var(--bedrock); color: var(--on-dark); overflow: hidden; isolation: isolate; }
.why::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: url("/case-studies/concepts/_assets/1ee1c0d8cab8922e986d1e2c.svg") 70% 0 / 1500px auto repeat; opacity: .06;
}
.why h2 { color: var(--white); }
.props { display: grid; gap: 1px; background: var(--line-dark); border: 1px solid var(--line-dark); border-radius: var(--r-lg); overflow: hidden; grid-template-columns: 1fr; }
@media (min-width: 640px) { .props { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .props { grid-template-columns: repeat(3, 1fr); } }
.prop { background: var(--bedrock); padding: clamp(24px, 3vw, 38px); display: flex; flex-direction: column; gap: 12px; transition: background-color .3s; }
.prop:hover { background: var(--bedrock-2); }
.prop__icon { width: 34px; height: 34px; fill: none; stroke: var(--blue); stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 8px; }
.prop h3 { font-size: 1.4375rem; font-stretch: 86%; color: var(--white); }
.prop p { color: var(--on-dark-2); font-size: 1rem; }

.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; margin: clamp(40px, 6vw, 72px) 0 0; }
@media (min-width: 1024px) { .stats { grid-template-columns: repeat(4, 1fr); } }
.stat { position: relative; padding: 30px 16px 6px; display: flex; flex-direction: column-reverse; gap: 8px; }
.stat::before {
  /* dimension line */
  content: ""; position: absolute; left: 0; right: 0; top: 10px; height: 13px;
  background:
    linear-gradient(var(--on-dark-2), var(--on-dark-2)) 0 50% / 100% 1px no-repeat,
    linear-gradient(var(--on-dark-2), var(--on-dark-2)) 0 0 / 1px 100% no-repeat,
    linear-gradient(var(--on-dark-2), var(--on-dark-2)) 100% 0 / 1px 100% no-repeat;
  opacity: .5; transform-origin: left; transition: transform 1.1s var(--ease);
}
.stat dt { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--on-dark-2); }
.stat dd { margin: 0; font-weight: 800; font-stretch: 76%; font-size: clamp(2.6rem, 1.8rem + 2.6vw, 4.2rem); line-height: 1; color: var(--white); letter-spacing: -.02em; }

/* ------------------------------------------------------------- projects -- */
.projects { padding: var(--section) 0; background: var(--white); }
.projects__grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .projects__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proj--feature { grid-column: 1 / -1; }
}
@media (min-width: 1024px) {
  .projects__grid { grid-template-columns: repeat(12, minmax(0, 1fr)); }
  .proj--feature { grid-column: 1 / span 7; grid-row: span 2; }
  .proj:nth-child(2), .proj:nth-child(3) { grid-column: span 5; }
  .proj:nth-child(4), .proj:nth-child(5), .proj--cta { grid-column: span 4; }
}
.proj { display: flex; flex-direction: column; border: 1px solid var(--line-2); border-radius: var(--r-md); overflow: hidden; background: var(--white); transition: box-shadow .35s var(--ease), transform .35s var(--ease); }
.proj:not(.proj--cta):hover { box-shadow: var(--shadow-2); transform: translateY(-3px); }
.proj__media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--bedrock); }
.proj__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease); }
.proj:hover .proj__media img { transform: scale(1.035); }
.proj--feature .proj__media { aspect-ratio: auto; flex: 1; min-height: 300px; }
.proj__media--art img { object-fit: contain; background: var(--bedrock); }
.proj--feature .proj__media--art img { object-fit: contain; }
.proj__body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; }
.proj__place { font-family: var(--f-mono); font-size: .6875rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.proj__title { font-size: 1.5rem; font-stretch: 84%; }
.proj--feature .proj__title { font-size: clamp(1.75rem, 1.3rem + 1.2vw, 2.25rem); }
.proj__body > p:not(.proj__place) { color: var(--ink-2); font-size: 1rem; }
.proj--cta {
  justify-content: space-between; gap: 22px; padding: 26px 24px;
  background: var(--paper); border-color: var(--line);
}
.proj__ctatitle { font-weight: 800; font-stretch: 84%; font-size: 1.5rem; line-height: 1.12; letter-spacing: -.01em; }
.proj--cta .btn { align-self: flex-start; }

/* -------------------------------------------------------------- process -- */
.process { padding: var(--section) 0; background: var(--paper); }
.traverse { position: relative; display: grid; gap: 28px; grid-template-columns: 1fr; counter-reset: stn; }
.traverse::before {
  /* the traverse line between stations */
  content: ""; position: absolute; left: 13px; top: 14px; bottom: 14px; width: 0;
  border-left: 1.5px dashed var(--ink-3); opacity: .5;
}
.station { position: relative; padding-left: 52px; }
.station__mark {
  position: absolute; left: 0; top: 0; width: 28px; height: 28px; border-radius: 50%;
  border: 1.5px solid var(--ink);
  background: conic-gradient(var(--ink) 0 90deg, var(--paper) 0 180deg, var(--ink) 0 270deg, var(--paper) 0);
  box-shadow: 0 0 0 6px var(--paper);
}
.station__no { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .1em; color: var(--blue-ink); margin: 4px 0 10px; }
.station h3 { font-size: 1.5rem; font-stretch: 84%; margin-bottom: 8px; }
.station p:last-child { color: var(--ink-2); font-size: 1rem; }
@media (min-width: 768px) {
  .traverse { grid-template-columns: repeat(2, 1fr); gap: 40px 32px; }
  .traverse::before { display: none; }
}
@media (min-width: 1100px) {
  .traverse { grid-template-columns: repeat(4, 1fr); }
  .traverse::before { display: block; left: 14px; right: 14px; top: 13px; bottom: auto; width: auto; height: 0; border-left: 0; border-top: 1.5px dashed var(--ink-3); }
  .station { padding-left: 0; padding-top: 50px; }
}

.deliverables { margin-top: clamp(56px, 7vw, 96px); }
.deliverables__label { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 18px; }
.deliverables__grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .deliverables__grid { grid-template-columns: repeat(3, 1fr); } }
.deliv__frame {
  position: relative; aspect-ratio: 4 / 3; border-radius: var(--r-md); overflow: hidden;
  background: var(--white); border: 1px solid var(--line);
}
.deliv__frame--dark { background: var(--bedrock); border-color: var(--bedrock); }
.deliv__frame img { width: 100%; height: 100%; object-fit: cover; }
.deliv:first-child .deliv__frame img { object-fit: contain; }
.deliv figcaption { display: flex; flex-direction: column; gap: 4px; padding: 14px 2px 0; }
.deliv figcaption strong { font-weight: 800; font-stretch: 86%; font-size: 1.1875rem; }
.deliv figcaption span { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .03em; color: var(--ink-3); }

/* ----------------------------------------------------------------- team -- */
.team { padding: var(--section) 0; background: var(--white); }
.team__grid { display: grid; gap: clamp(36px, 5vw, 72px); align-items: start; }
@media (min-width: 1024px) {
  .team__grid { grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); }
  .team__media { position: sticky; top: calc(var(--header-h) + 32px); }
}
.frame { position: relative; border-radius: var(--r-md); }
.frame::after {
  /* survey registration corners */
  content: ""; position: absolute; inset: -10px; pointer-events: none;
  --c: var(--ink); --l: 18px; --w: 1.5px;
  background:
    linear-gradient(var(--c), var(--c)) 0 0 / var(--l) var(--w) no-repeat,
    linear-gradient(var(--c), var(--c)) 0 0 / var(--w) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) 100% 0 / var(--l) var(--w) no-repeat,
    linear-gradient(var(--c), var(--c)) 100% 0 / var(--w) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) 0 100% / var(--l) var(--w) no-repeat,
    linear-gradient(var(--c), var(--c)) 0 100% / var(--w) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) 100% 100% / var(--l) var(--w) no-repeat,
    linear-gradient(var(--c), var(--c)) 100% 100% / var(--w) var(--l) no-repeat;
}
.frame img { border-radius: var(--r-md); width: 100%; aspect-ratio: 16 / 10; object-fit: cover; object-position: 50% 62%; }
.team__media figcaption { margin-top: 18px; font-family: var(--f-mono); font-size: .75rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); }
.team__copy h2 { margin: 18px 0 18px; font-size: clamp(2.25rem, 1.3rem + 3.3vw, 4.1rem); }
.people { margin-top: 32px; border-top: 1px solid var(--line-2); }
.person { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px; padding: 16px 0; border-bottom: 1px solid var(--line-2); }
.person__mark {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center;
  font-family: var(--f-mono); font-weight: 500; font-size: .8125rem; letter-spacing: .04em;
  color: var(--blue-ink); background: var(--blue-soft);
}
.person__id h3 { font-size: 1.1875rem; font-stretch: 88%; line-height: 1.15; }
.person__id h3 abbr { font-family: var(--f-mono); font-weight: 500; font-size: .6875rem; letter-spacing: .04em; color: var(--ink-3); margin-left: 4px; }
.person__id p { font-size: .9375rem; color: var(--ink-3); line-height: 1.35; margin-top: 3px; }
.person__links { display: flex; gap: 8px; }
.person__links a {
  display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 12px;
  border: 1px solid var(--line); border-radius: 999px; text-decoration: none;
  font-weight: 700; font-size: .875rem; color: var(--ink); transition: border-color .2s, background-color .2s;
}
.person__links a:hover { border-color: var(--ink); background: var(--paper); }
.person__links a:last-child { width: 40px; padding: 0; justify-content: center; }
@media (max-width: 559px) {
  .person { grid-template-columns: auto 1fr; }
  .person__links { grid-column: 2; }
}
.values { margin-top: 32px; }
.values__label { font-family: var(--f-mono); font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 12px; }
.values ul { display: flex; flex-wrap: wrap; gap: 8px; }
.values li { padding: 8px 14px; border-radius: 999px; background: var(--paper); font-weight: 700; font-stretch: 90%; font-size: .9375rem; }
.team__hiring { margin-top: 28px; color: var(--ink-2); }

/* ------------------------------------------------------------------ faq -- */
.faq { padding: var(--section) 0; background: var(--paper); }
.faq__grid { display: grid; gap: 36px; }
@media (min-width: 1024px) {
  .faq__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; align-items: start; }
  .faq__head { position: sticky; top: calc(var(--header-h) + 32px); }
}
.faq__head h2 { margin: 18px 0; font-size: clamp(2.25rem, 1.3rem + 3.3vw, 4.1rem); }
.faq__list { border-top: 1px solid var(--line); }
.faq__list details { border-bottom: 1px solid var(--line); }
.faq__list summary {
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 22px 2px; cursor: pointer; list-style: none;
  font-weight: 800; font-stretch: 86%; font-size: clamp(1.1875rem, 1.05rem + .4vw, 1.375rem); line-height: 1.25;
}
.faq__list summary::-webkit-details-marker { display: none; }
.faq__list summary .icon {
  width: 34px; height: 34px; padding: 8px; border-radius: 50%; border: 1px solid var(--line);
  transition: transform .3s var(--ease), background-color .2s, color .2s;
}
.faq__list details[open] summary .icon { transform: rotate(45deg); background: var(--bedrock); color: var(--white); border-color: var(--bedrock); }
.faq__list summary:hover .icon { border-color: var(--ink); }
.faq__a { padding: 0 52px 24px 2px; color: var(--ink-2); }
.faq__a strong { color: var(--ink); }

/* -------------------------------------------------------------- contact -- */
.contact { position: relative; padding: var(--section) 0; background: var(--bedrock); color: var(--on-dark); overflow: hidden; isolation: isolate; }
.contact::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: url("/case-studies/concepts/_assets/1ee1c0d8cab8922e986d1e2c.svg") 10% 100% / 1600px auto repeat; opacity: .06;
}
.contact__grid { display: grid; gap: 44px; align-items: start; }
@media (min-width: 1024px) { .contact__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 72px; } }
.contact__intro h2 { color: var(--white); margin: 18px 0; font-size: clamp(2.5rem, 1.4rem + 3.8vw, 4.6rem); }
.contact__intro .lead { color: var(--on-dark-2); }
.contact__phone {
  display: inline-flex; align-items: center; gap: 14px; margin-top: 28px;
  font-weight: 800; font-stretch: 80%; font-size: clamp(2rem, 1.5rem + 1.6vw, 2.75rem); letter-spacing: -.01em;
  color: var(--white); text-decoration: none;
}
.contact__phone .icon { width: 52px; height: 52px; padding: 13px; border-radius: 50%; background: var(--hivis); color: var(--bedrock); stroke-width: 2; }
.contact__phone:hover { color: var(--hivis-2); }
.contact__details { margin-top: 26px; display: grid; gap: 12px; }
.contact__details li { display: flex; gap: 12px; align-items: flex-start; color: var(--on-dark-2); }
.contact__details .icon { margin-top: 3px; color: var(--blue); }
.contact__details a { color: var(--on-dark); text-decoration: none; }
.contact__details a:hover { text-decoration: underline; }
.badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.badges li { background: var(--white); border-radius: 10px; padding: 8px 10px; display: grid; place-items: center; height: 64px; }
.badges img { height: 46px; width: auto; }
.contact__more { margin-top: 14px; font-family: var(--f-mono); font-size: .75rem; letter-spacing: .04em; color: var(--on-dark-2); }

.contact__panel {
  background: var(--white); color: var(--ink); border-radius: var(--r-lg);
  padding: clamp(22px, 3.4vw, 40px); box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .65);
}
.qf { display: grid; gap: 18px; }
.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.qf fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.qf legend { font-weight: 800; font-stretch: 86%; font-size: 1.25rem; margin-bottom: 12px; padding: 0; }
.qf legend span { font-family: var(--f-mono); font-weight: 400; font-size: .6875rem; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-3); margin-left: 8px; font-stretch: normal; }
.qf__chips { display: flex; flex-wrap: wrap; gap: 8px; }
.qchip { position: relative; cursor: pointer; }
.qchip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.qchip span {
  display: inline-flex; align-items: center; gap: 8px; min-height: 42px; padding: 9px 14px;
  border: 1.5px solid var(--line); border-radius: 999px; background: var(--white);
  font-weight: 600; font-size: .9375rem; line-height: 1.2; transition: border-color .2s, background-color .2s, color .2s;
}
.qchip span::before {
  content: ""; width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid var(--line); flex: none;
  transition: background-color .2s, border-color .2s, box-shadow .2s;
}
.qchip:hover span { border-color: var(--ink-3); }
.qchip input:checked + span { border-color: var(--bedrock); background: var(--bedrock); color: var(--white); }
.qchip input:checked + span::before { background: var(--hivis); border-color: var(--hivis); box-shadow: inset 0 0 0 3px var(--bedrock); }
.qchip input:focus-visible + span { outline: 3px solid var(--blue); outline-offset: 2px; }

@media (max-width: 519px) {
  .qf legend span { display: block; margin: 6px 0 0; }
  .qf__chips { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .qchip span { width: 100%; height: 100%; padding: 9px 10px; font-size: .875rem; border-radius: 12px; }
  .qchip span::before { width: 14px; height: 14px; }
}

.qf__row { display: grid; gap: 18px; }
@media (min-width: 640px) { .qf__row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 7px; }
.field label { font-weight: 700; font-size: .9375rem; }
.opt { font-family: var(--f-mono); font-weight: 400; font-size: .6875rem; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-3); margin-left: 6px; }
.field input, .field select, .field textarea {
  width: 100%; min-height: 52px; padding: 13px 14px;
  border: 1.5px solid var(--line); border-radius: var(--r-sm); background: var(--white);
  font-size: 1rem; line-height: 1.4; transition: border-color .2s, box-shadow .2s;
}
.field textarea { min-height: 116px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: #8A93A0; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--ink-3); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-ink); box-shadow: 0 0 0 4px rgba(52, 130, 254, .22); }
.field [aria-invalid="true"] { border-color: #C9302C; box-shadow: 0 0 0 4px rgba(201, 48, 44, .12); }
.select { position: relative; }
.select::after {
  content: ""; position: absolute; right: 16px; top: 50%; width: 8px; height: 8px; pointer-events: none;
  border-right: 2px solid var(--ink-2); border-bottom: 2px solid var(--ink-2); transform: translateY(-70%) rotate(45deg);
}
.select select { appearance: none; -webkit-appearance: none; padding-right: 40px; cursor: pointer; }

.field--file { position: relative; }
.file {
  display: flex; align-items: center; gap: 12px; min-height: 56px; padding: 12px 16px;
  border: 1.5px dashed var(--line); border-radius: var(--r-sm); cursor: pointer;
  font-weight: 600 !important; color: var(--ink-2); transition: border-color .2s, background-color .2s;
}
.file:hover { border-color: var(--ink-3); background: var(--paper); }
.file .icon { color: var(--blue-ink); width: 20px; height: 20px; }
.file__input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.file__input:focus-visible + .qf__error, .field--file:focus-within .file { outline: 3px solid var(--blue); outline-offset: 2px; }
.file.has-file { border-style: solid; border-color: var(--bedrock); color: var(--ink); }

.qf__error { color: #B3261E; font-size: .875rem; font-weight: 600; margin-top: 2px; }
.qf__submit { margin-top: 4px; }
.qf__submit[disabled] { opacity: .7; cursor: progress; }
.qf__legal { font-size: .8125rem; color: var(--ink-3); text-align: center; }
.qf__legal a { color: inherit; }
.qf__status { font-size: .9375rem; text-align: center; color: #B3261E; }
.qf__status:empty { display: none; }

.qf-done { text-align: center; padding: clamp(24px, 4vw, 48px) 8px; display: grid; justify-items: center; gap: 14px; }
.qf-done:focus { outline: none; }
.qf-done__mark {
  width: 64px; height: 64px; border-radius: 50%; border: 2px solid var(--bedrock);
  background: conic-gradient(var(--bedrock) 0 90deg, var(--white) 0 180deg, var(--bedrock) 0 270deg, var(--white) 0);
  margin-bottom: 6px;
}
.qf-done h3 { font-size: clamp(1.75rem, 1.4rem + 1.2vw, 2.25rem); }
.qf-done p { color: var(--ink-2); max-width: 30rem; }

/* --------------------------------------------------------------- footer -- */
.footer { background: var(--white); padding: clamp(56px, 7vw, 88px) 0 calc(28px + env(safe-area-inset-bottom)); border-top: 1px solid var(--line-2); }
.footer__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; padding-bottom: clamp(32px, 4vw, 48px); border-bottom: 1px solid var(--line-2); }
.brand--footer img { width: clamp(220px, 20vw + 60px, 300px); }
.footer__line { font-weight: 800; font-stretch: 78%; font-size: clamp(2rem, 1.4rem + 2vw, 3rem); letter-spacing: -.02em; line-height: 1; }
.footer__cols { display: grid; gap: 32px; padding: clamp(32px, 4vw, 48px) 0; grid-template-columns: 1fr; }
@media (min-width: 640px) { .footer__cols { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .footer__cols { grid-template-columns: 1.4fr 1fr 1.2fr 1fr; } }
.footer__h { font-family: var(--f-mono); font-weight: 500; font-stretch: normal; font-size: .75rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 16px; }
.footer__cols ul { display: grid; gap: 10px; }
.footer__cols a { text-decoration: none; color: var(--ink); font-weight: 500; }
.footer__cols a:hover { color: var(--blue-ink); text-decoration: underline; }
.footer__contact address { color: var(--ink-2); line-height: 1.55; }
.social a { display: inline-flex; align-items: center; gap: 10px; }
.social .icon { width: 20px; height: 20px; color: var(--ink); }
.footer__legal { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; padding-top: 24px; border-top: 1px solid var(--line-2); font-size: .8125rem; color: var(--ink-3); }
.footer__legal p:first-child { max-width: 52rem; }
.footer__legal a { color: inherit; }

/* ----------------------------------------------------------- mobile bar -- */
.mbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
  display: none; gap: 8px; padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  background: rgba(255, 255, 255, .96); border-top: 1px solid var(--line-2);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  transform: translateY(110%); transition: transform .35s var(--ease);
}
.mbar a {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 50px;
  border-radius: var(--r-sm); font-weight: 800; font-stretch: 90%; text-decoration: none;
}
.mbar__call { border: 1.5px solid var(--ink); color: var(--ink); flex: 0 0 34% !important; }
.mbar__quote { background: var(--hivis); color: var(--bedrock); }
.mbar.is-visible { transform: none; }
@media (max-width: 1023px) {
  .mbar { display: flex; }
  .footer { padding-bottom: calc(96px + env(safe-area-inset-bottom)); }
}

/* --------------------------------------------------------------- motion -- */
.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: calc(var(--d, 0) * 90ms); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js .stat:not(.is-in)::before { transform: scaleX(0); }

.hero__line, .hero__kicker, .hero__lead, .hero__ctas, .hero__ticks, .hero__accreds { animation: rise .9s var(--ease) both; }
.hero__line:nth-of-type(2) { animation-delay: .06s; }
.hero__line:nth-of-type(3) { animation-delay: .12s; }
.hero__line--sub { animation-delay: .2s !important; }
.hero__lead { animation-delay: .28s; }
.hero__ctas { animation-delay: .36s; }
.hero__ticks { animation-delay: .42s; }
.hero__accreds { animation-delay: .5s; }
.scan { animation: rise 1s .2s var(--ease) both; }
@keyframes rise { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .js [data-reveal] { opacity: 1; transform: none; }
  .marquee__track { animation: none; flex-wrap: wrap; width: auto; justify-content: center; }
  .marquee__list[aria-hidden="true"] { display: none; }
  .marquee__list { flex-wrap: wrap; justify-content: center; padding-right: 0; gap: 28px 44px; }
  .marquee { -webkit-mask-image: none; mask-image: none; }
}

/* ---------------------------------------------------------------- print -- */
@media print {
  .site-header, .mbar, .hero__panel, .marquee, .band, .contact__panel { display: none !important; }
  .js [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ------------------------------------------------- secondary pages -- */
.page { background: var(--paper); min-height: calc(100svh - var(--header-h)); padding: clamp(56px, 8vw, 112px) 0; position: relative; isolation: isolate; }
.page::before { content: ""; position: absolute; inset: 0; z-index: -1; background: url("/case-studies/concepts/_assets/317cffa3f9803cf6aa8b393a.svg") 0 0 / 1200px auto repeat; opacity: .05; }
.page__inner { max-width: 760px; }
.page h1 { margin: 18px 0 20px; font-size: clamp(2.6rem, 1.4rem + 4.4vw, 5rem); font-stretch: 78%; letter-spacing: -.02em; line-height: .95; }
.page .lead { margin-bottom: 32px; }
.page__actions { display: flex; flex-wrap: wrap; gap: 12px; }
.prose { color: var(--ink-2); }
.prose h2 { color: var(--ink); font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); margin: 44px 0 12px; }
.prose p + p, .prose ul + p { margin-top: 14px; }
.prose ul { margin: 12px 0; padding-left: 1.2em; list-style: disc; }
.prose li + li { margin-top: 6px; }
.prose a { color: var(--blue-ink); }
.page-footer { background: var(--white); border-top: 1px solid var(--line-2); padding: 28px 0 calc(28px + env(safe-area-inset-bottom)); font-size: .8125rem; color: var(--ink-3); }
.page-footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 32px; }
.page-footer a { color: inherit; }