/* ==========================================================================
   Grid Bros — styles.css
   Single stylesheet for the whole site.

   Contents
   01. Design tokens
   02. Reset and base
   03. Layout primitives
   04. Typography
   05. Buttons
   06. Header, logo and navigation
   07. Hero
   08. Capability strip
   09. Cards and service grid
   10. Integrated system diagram
   11. Industries
   12. Process
   13. Work
   14. Search / SEO section
   15. Insights
   16. CTA band
   17. Footer
   18. Internal page furniture (page hero, breadcrumbs, prose)
   19. 404
   20. Reduced motion
   ========================================================================== */

/* 01. Design tokens
   ========================================================================== */
:root {
  /* Palette */
  --carbon-black: #050607;
  --deep-black: #090B0D;
  --panel-black: #101316;
  --charcoal: #171A1D;
  --line-grey: #2A2F34;
  /* Ghost grey: for oversized decorative numerals. Deliberately quiet, but still
     clears WCAG 3:1 for large text against carbon and panel backgrounds, which
     --line-grey (1.5:1) does not. Rules and strokes keep using --line-grey. */
  --ghost-grey: #5A636B;
  --soft-grey: #98A0A8;
  --off-white: #F3F5F7;
  --pure-white: #FFFFFF;
  --grid-orange: #FF6500;
  --grid-orange-hover: #FF7A1A;
  --grid-blue: #009FE3;
  --grid-blue-bright: #12B8FF;

  /* Type */
  --font-display: "Bahnschrift Condensed", "Bahnschrift", "Arial Narrow",
    "Helvetica Neue Condensed", "Roboto Condensed", "Liberation Sans Narrow",
    "DejaVu Sans Condensed", "Segoe UI", Arial, sans-serif;
  --font-body: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono",
    "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --step-hero: clamp(2.75rem, 6.4vw, 5.25rem);
  --step-h1: clamp(2.4rem, 5.2vw, 4rem);
  --step-h2: clamp(1.9rem, 3.6vw, 3rem);
  --step-h3: clamp(1.2rem, 1.6vw, 1.4rem);
  --step-body: 1.0625rem;
  --step-lead: clamp(1.125rem, 1.5vw, 1.3125rem);
  --step-label: 0.8125rem;

  /* Space and structure */
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --container: 1200px;
  --section-y: clamp(4.5rem, 9vw, 7.5rem);
  --radius: 2px;
  --header-h: 72px;

  /* Effects */
  --border: 1px solid var(--line-grey);
  --focus: 0 0 0 2px var(--carbon-black), 0 0 0 4px var(--grid-blue-bright);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --carbon: repeating-linear-gradient(
    45deg,
    rgba(255, 255, 255, 0.014) 0 1px,
    transparent 1px 4px
  );
}

/* 02. Reset and base
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1.5rem);
}

body {
  margin: 0;
  background-color: var(--carbon-black);
  background-image: var(--carbon);
  color: var(--off-white);
  font-family: var(--font-body);
  font-size: var(--step-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-locked {
  position: fixed;
  inset-inline: 0;
  overflow: hidden;
  width: 100%;
}

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

img {
  height: auto;
}

a {
  color: var(--off-white);
  text-underline-offset: 0.22em;
}

a:hover {
  color: var(--grid-orange-hover);
}

:focus-visible {
  outline: 2px solid var(--grid-blue-bright);
  outline-offset: 3px;
  border-radius: 1px;
}

::selection {
  background: var(--grid-orange);
  color: var(--carbon-black);
}

hr {
  border: 0;
  border-top: var(--border);
  margin: 2.5rem 0;
}

.skip-link {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -120%);
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--grid-orange);
  color: var(--carbon-black);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s var(--ease);
}

.skip-link:focus {
  transform: translate(-50%, 0);
  color: var(--carbon-black);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* 03. Layout primitives
   ========================================================================== */
.container {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.container--narrow {
  width: min(100% - (var(--gutter) * 2), 780px);
  margin-inline: auto;
}

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

.section--line {
  border-top: var(--border);
}

.section--panel {
  background: linear-gradient(180deg, var(--deep-black), var(--carbon-black));
}

.section__head {
  max-width: 62ch;
  margin-bottom: clamp(2.5rem, 4vw, 3.5rem);
}

.section__head--wide {
  max-width: none;
  display: grid;
  gap: 1.5rem clamp(2rem, 5vw, 5rem);
  align-items: end;
}

@media (min-width: 900px) {
  .section__head--wide {
    grid-template-columns: 1.1fr 1fr;
  }
}

/* Sector label: the numbered marker used to index page sections. */
.sector {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1.25rem;
  font-family: var(--font-mono);
  font-size: var(--step-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--soft-grey);
}

.sector::before {
  content: "";
  width: 10px;
  height: 2px;
  flex: none;
  background: var(--grid-orange);
}

.sector__num {
  color: var(--off-white);
  font-weight: 600;
}

.sector__rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line-grey), transparent);
}

.grid {
  display: grid;
  gap: 1px;
}

.stack > * + * {
  margin-top: 1rem;
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem 1rem;
  align-items: center;
}

/* Thin diagonal accent strip — the recurring "speed" device. */
.strip {
  height: 6px;
  background-image: repeating-linear-gradient(
    115deg,
    var(--grid-orange) 0 14px,
    transparent 14px 28px
  );
  opacity: 0.9;
}

.strip--blue {
  background-image: repeating-linear-gradient(
    115deg,
    var(--grid-blue) 0 14px,
    transparent 14px 28px
  );
}

/* 04. Typography
   ========================================================================== */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: 0.004em;
  margin: 0;
  color: var(--pure-white);
  text-wrap: balance;
}

h1 {
  font-size: var(--step-h1);
  text-transform: uppercase;
}

h2 {
  font-size: var(--step-h2);
  text-transform: uppercase;
}

h3 {
  font-size: var(--step-h3);
  line-height: 1.25;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

p {
  margin: 0 0 1.1rem;
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: var(--step-lead);
  line-height: 1.6;
  color: var(--off-white);
}

.muted {
  color: var(--soft-grey);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step-label);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--grid-blue-bright);
  margin: 0 0 1rem;
}

/* Italic technical label — used sparingly for performance-oriented captions. */
.tech {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-style: italic;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--soft-grey);
}

.orange {
  color: var(--grid-orange);
}

.blue {
  color: var(--grid-blue-bright);
}

/* 05. Buttons
   ========================================================================== */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--off-white);
  --btn-bd: var(--line-grey);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--btn-bd);
  border-radius: var(--radius);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 1.0625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease),
    color 0.18s var(--ease), transform 0.18s var(--ease);
}

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

.btn:active {
  transform: translateY(0);
}

.btn__arrow {
  width: 14px;
  height: 10px;
  flex: none;
  transition: transform 0.18s var(--ease);
}

.btn:hover .btn__arrow {
  transform: translateX(3px);
}

.btn--primary {
  --btn-bg: var(--grid-orange);
  --btn-fg: var(--carbon-black);
  --btn-bd: var(--grid-orange);
}

.btn--primary:hover {
  --btn-bg: var(--grid-orange-hover);
  --btn-bd: var(--grid-orange-hover);
  color: var(--carbon-black);
}

.btn--ghost:hover {
  --btn-bd: var(--grid-blue);
  color: var(--off-white);
}

.btn--small {
  min-height: 44px;
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
}

/* Text link with a rule that extends on hover. */
.link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--off-white);
}

.link::after {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--grid-orange);
  transition: width 0.18s var(--ease);
}

.link:hover {
  color: var(--grid-orange-hover);
}

.link:hover::after {
  width: 30px;
}

/* 06. Header, logo and navigation
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background-color 0.25s var(--ease), border-color 0.25s var(--ease),
    backdrop-filter 0.25s var(--ease);
}

.header.is-stuck {
  background: rgba(5, 6, 7, 0.82);
  border-bottom-color: var(--line-grey);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

/* --- Logo component -------------------------------------------------------
   Temporary wordmark. See the TODO comment in the header of every page for
   the swap to /assets/brand/gridbros-logo.svg.
   -------------------------------------------------------------------------- */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--pure-white);
  flex: none;
}

.logo:hover {
  color: var(--pure-white);
}

.logo__mark {
  width: 34px;
  height: 34px;
  flex: none;
}

.logo__word {
  display: flex;
  align-items: baseline;
  gap: 0.28em;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.logo__grid {
  color: var(--pure-white);
}

.logo__bros {
  color: var(--grid-orange);
}

.logo__stripes {
  width: 16px;
  height: 18px;
  flex: none;
  align-self: center;
}

/* Temporary mark internals — removed when the final SVG logo is dropped in. */
.lm-plate {
  fill: var(--panel-black);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.lm-cut {
  fill: var(--grid-orange);
}

.lm-tick {
  stroke: var(--grid-blue);
  stroke-width: 2;
  fill: none;
}

.lm-text {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  fill: var(--pure-white);
}

.ls-b {
  stroke: var(--grid-blue);
  stroke-width: 2;
}

.ls-o {
  stroke: var(--grid-orange);
  stroke-width: 2;
}

.ls-w {
  stroke: var(--pure-white);
  stroke-width: 2;
}

.logo:hover .lm-cut {
  fill: var(--grid-orange-hover);
}

.logo--footer .logo__word {
  font-size: 1.75rem;
}

/* --- Navigation ----------------------------------------------------------- */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border: var(--border);
  border-radius: var(--radius);
  background: rgba(16, 19, 22, 0.6);
  color: var(--off-white);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
}

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 16px;
}

.nav-toggle__bars span {
  height: 2px;
  background: var(--grid-orange);
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  display: block;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--off-white);
}

.nav__link[aria-current="page"] {
  color: var(--grid-orange);
}

/* Mobile navigation panel */
@media (max-width: 899px) {
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0;
    z-index: 90;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    padding: 2rem var(--gutter) 3rem;
    background: var(--deep-black);
    background-image: var(--carbon);
    border-top: var(--border);
    overflow-y: auto;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-8px);
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease),
      visibility 0.2s;
  }

  .site-nav.is-open {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
  }

  .nav__list {
    display: grid;
  }

  .nav__item {
    border-bottom: var(--border);
  }

  .nav__link {
    padding: 1rem 0;
    font-size: 1.75rem;
  }

  .nav__link::before {
    content: attr(data-index) " ";
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    color: var(--soft-grey);
    margin-right: 0.75rem;
    vertical-align: 0.35em;
  }

  .nav__cta {
    width: 100%;
  }

  .nav__meta {
    margin-top: auto;
    padding-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--soft-grey);
    word-break: break-word;
  }
}

/* Desktop navigation */
@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 2.4vw, 2.25rem);
  }

  .nav__list {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 2.4vw, 2.25rem);
  }

  .nav__link {
    position: relative;
    padding: 0.5rem 0;
    font-size: 1rem;
  }

  .nav__link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background: var(--grid-orange);
    transition: width 0.18s var(--ease);
  }

  .nav__link:hover::after,
  .nav__link[aria-current="page"]::after {
    width: 100%;
  }

  .nav__link:hover {
    color: var(--pure-white);
  }

  .nav__meta {
    display: none;
  }
}

/* 07. Hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 7vw, 6rem) clamp(3.5rem, 7vw, 6rem);
  border-bottom: var(--border);
}

/* Perspective grid backdrop, faded out towards the edges. */
.hero__grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(
    120% 90% at 70% 0%,
    #000 10%,
    transparent 72%
  );
  mask-image: radial-gradient(120% 90% at 70% 0%, #000 10%, transparent 72%);
}

.hero__inner {
  position: relative;
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: center;
}

@media (min-width: 980px) {
  .hero__inner {
    grid-template-columns: 1.02fr 0.98fr;
  }
}

.hero__copy {
  max-width: 40ch;
}

.hero h1 {
  font-size: var(--step-hero);
  line-height: 0.94;
  margin-bottom: 1.5rem;
}

.hero h1 .hero__accent {
  color: var(--grid-orange);
}

.hero__lead {
  max-width: 46ch;
  color: var(--soft-grey);
  margin-bottom: 2rem;
}

.hero__actions {
  margin-bottom: 2.25rem;
}

.hero__note {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--step-label);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--soft-grey);
  margin: 0;
}

.hero__note::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--grid-blue-bright);
  box-shadow: 0 0 0 3px rgba(18, 184, 255, 0.16);
}

/* --- Hero visual ---------------------------------------------------------- */
.hero__visual {
  position: relative;
}

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

.hv-panel {
  fill: var(--panel-black);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.hv-panel--deep {
  fill: var(--deep-black);
}

.hv-line {
  fill: none;
  stroke: var(--line-grey);
  stroke-width: 1;
}

.hv-line--fine {
  stroke: var(--line-grey);
  stroke-width: 0.5;
}

.hv-orange {
  fill: var(--grid-orange);
}

.hv-orange-line {
  fill: none;
  stroke: var(--grid-orange);
  stroke-width: 2;
}

.hv-blue {
  fill: var(--grid-blue);
}

.hv-blue-line {
  fill: none;
  stroke: var(--grid-blue);
  stroke-width: 2;
}

.hv-bar {
  fill: var(--line-grey);
}

.hv-bar--live {
  fill: var(--grid-blue);
}

.hv-white {
  fill: var(--off-white);
}

.hv-grey {
  fill: var(--soft-grey);
}

.hv-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  fill: var(--soft-grey);
  text-transform: uppercase;
}

.hv-label--bright {
  fill: var(--off-white);
}

.hv-title {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.06em;
  fill: var(--off-white);
}

/* Ambient light travelling along the connection line. */
.hv-pulse {
  fill: var(--grid-orange);
  animation: hv-travel 7s var(--ease) infinite;
}

.hv-pulse--blue {
  fill: var(--grid-blue-bright);
  animation: hv-travel-b 9s var(--ease) infinite 1.2s;
}

@keyframes hv-travel {
  0% {
    transform: translateX(0);
    opacity: 0;
  }
  12% {
    opacity: 1;
  }
  88% {
    opacity: 1;
  }
  100% {
    transform: translateX(300px);
    opacity: 0;
  }
}

@keyframes hv-travel-b {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  85% {
    opacity: 1;
  }
  100% {
    transform: translateY(-190px);
    opacity: 0;
  }
}

.hv-sweep {
  animation: hv-sweep 8s linear infinite;
  transform-origin: center;
}

@keyframes hv-sweep {
  0%,
  100% {
    opacity: 0.12;
  }
  50% {
    opacity: 0.4;
  }
}

@media (max-width: 979px) {
  .hero__visual {
    order: 2;
    max-width: 560px;
  }

  .hv-optional {
    display: none;
  }
}

/* 08. Capability strip
   ========================================================================== */
.capstrip {
  border-block: var(--border);
  background: var(--deep-black);
  overflow: hidden;
  padding-block: 1.125rem;
}

.capstrip__track {
  display: flex;
  width: max-content;
  animation: capscroll 38s linear infinite;
}

.capstrip:hover .capstrip__track,
.capstrip:focus-within .capstrip__track {
  animation-play-state: paused;
}

.capstrip__set {
  display: flex;
  align-items: center;
  flex: none;
}

.capstrip__item {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 4vw, 3rem);
  padding-inline: clamp(0.75rem, 2vw, 1.5rem);
  font-family: var(--font-display);
  font-stretch: condensed;
  font-style: italic;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--off-white);
  white-space: nowrap;
}

.capstrip__item::after {
  content: "";
  width: 5px;
  height: 5px;
  flex: none;
  transform: rotate(45deg);
  background: var(--grid-orange);
}

.capstrip__item:nth-child(even)::after {
  background: var(--grid-blue);
}

@keyframes capscroll {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

/* 09. Cards and service grid
   ========================================================================== */
.card-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1040px) {
  .card-grid--4 {
    grid-template-columns: repeat(4, 1fr);
  }

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

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding: clamp(1.5rem, 2.4vw, 2rem);
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease),
    background-color 0.2s var(--ease);
}

/* Diagonal cut in the top-right corner of every card. */
.card::before {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 26px;
  height: 26px;
  background: var(--carbon-black);
  border-left: var(--border);
  transform: rotate(45deg) translate(9px, -18px);
  transition: background-color 0.2s var(--ease);
}

.card:hover,
.card:focus-within {
  border-color: var(--grid-orange);
  transform: translateY(-2px);
  background: var(--charcoal);
}

.card__icon {
  width: 40px;
  height: 40px;
  color: var(--grid-blue-bright);
  transition: color 0.2s var(--ease);
}

.card:hover .card__icon,
.card:focus-within .card__icon {
  color: var(--grid-orange);
}

.card__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--soft-grey);
}

.card h3 {
  margin: 0;
}

.card p {
  color: var(--soft-grey);
  font-size: 1rem;
  margin: 0;
}

.card__link {
  margin-top: auto;
  padding-top: 0.5rem;
}

/* Whole-card click target driven by the real link inside it. */
.card__link::before {
  content: "";
  position: absolute;
  inset: 0;
}

.card--flat:hover,
.card--flat:focus-within {
  transform: none;
  border-color: var(--line-grey);
  background: var(--panel-black);
}

/* 10. Integrated system diagram
   ========================================================================== */
.system {
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: center;
}

@media (min-width: 940px) {
  .system {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

.system__svg {
  width: 100%;
  height: auto;
}

.sys-node {
  fill: var(--panel-black);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.sys-node--key {
  stroke: var(--grid-orange);
}

.sys-link {
  fill: none;
  stroke: var(--line-grey);
  stroke-width: 1;
}

.sys-link--live {
  stroke: var(--grid-blue);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
  animation: sys-flow 3s linear infinite;
}

@keyframes sys-flow {
  to {
    stroke-dashoffset: -20;
  }
}

.sys-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  fill: var(--off-white);
  text-transform: uppercase;
}

.sys-core {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  fill: var(--pure-white);
}

.sys-core--sub {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  fill: var(--grid-orange);
  font-weight: 400;
}

.sys-dot {
  fill: var(--grid-orange);
}

/* 11. Industries
   ========================================================================== */
.ind-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--border);
}

.ind-item {
  border-bottom: var(--border);
}

.ind-item__inner {
  display: grid;
  gap: 0.25rem 1.5rem;
  padding: 1.35rem 0.75rem;
  align-items: baseline;
  transition: background-color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

@media (min-width: 800px) {
  .ind-item__inner {
    grid-template-columns: 40px minmax(240px, 1fr) 2fr;
  }
}

.ind-item:hover .ind-item__inner {
  background: var(--panel-black);
  padding-left: 1.25rem;
}

.ind-item__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--grid-orange);
}

.ind-item__name {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--pure-white);
}

.ind-item__note {
  color: var(--soft-grey);
  font-size: 1rem;
}

/* 12. Process
   ========================================================================== */
.process {
  display: grid;
  gap: 1px;
  background: var(--line-grey);
  border: var(--border);
}

@media (min-width: 760px) {
  .process {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .process {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stage {
  position: relative;
  padding: clamp(1.75rem, 2.6vw, 2.25rem);
  background: var(--carbon-black);
  background-image: var(--carbon);
  transition: background-color 0.2s var(--ease);
}

.stage:hover {
  background-color: var(--panel-black);
}

.stage__num {
  display: block;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-style: italic;
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: var(--ghost-grey);
  margin-bottom: 0.75rem;
  transition: color 0.2s var(--ease);
}

.stage:hover .stage__num {
  color: var(--grid-orange);
}

.stage h3 {
  margin-bottom: 0.6rem;
}

.stage p {
  color: var(--soft-grey);
  font-size: 1rem;
  margin: 0;
}

.stage__track {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--grid-orange), transparent 70%);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
}

.stage:hover .stage__track {
  opacity: 1;
}

/* 13. Work
   ========================================================================== */
.concept {
  display: flex;
  flex-direction: column;
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}

.concept:hover {
  border-color: var(--grid-blue);
}

.concept__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--deep-black);
  border-bottom: var(--border);
}

.concept__media svg {
  width: 100%;
  height: 100%;
}

.concept__tag {
  position: absolute;
  top: 0.875rem;
  left: 0.875rem;
  padding: 0.3rem 0.6rem;
  background: var(--carbon-black);
  border: 1px solid var(--grid-orange);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grid-orange);
}

.concept__body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: clamp(1.35rem, 2.2vw, 1.75rem);
  flex: 1;
}

.concept__body p {
  color: var(--soft-grey);
  font-size: 1rem;
  margin: 0;
}

.concept__meta {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: var(--border);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--soft-grey);
}

.notice {
  display: grid;
  gap: 1rem;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  margin-top: 1rem;
  background: var(--deep-black);
  border: var(--border);
  border-left: 2px solid var(--grid-blue);
  border-radius: var(--radius);
}

.notice p {
  margin: 0;
  color: var(--soft-grey);
}

/* 14. Search / SEO section
   ========================================================================== */
.search-block {
  display: grid;
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

@media (min-width: 940px) {
  .search-block {
    grid-template-columns: 1fr 1fr;
  }
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.875rem;
}

.checklist li {
  display: grid;
  grid-template-columns: 18px 1fr;
  gap: 0.875rem;
  align-items: start;
  padding-bottom: 0.875rem;
  border-bottom: var(--border);
  color: var(--soft-grey);
}

.checklist li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.checklist strong {
  display: block;
  color: var(--off-white);
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.checklist svg {
  width: 18px;
  height: 18px;
  margin-top: 4px;
  color: var(--grid-orange);
}

.search-vis {
  position: relative;
  padding: clamp(1.25rem, 2.4vw, 1.75rem);
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
}

.search-vis svg {
  width: 100%;
  height: auto;
}

.sv-frame {
  fill: var(--deep-black);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.sv-grid {
  stroke: var(--line-grey);
  stroke-width: 1;
  fill: none;
}

.sv-node-plate {
  fill: var(--charcoal);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.sv-node-plate--key {
  stroke: var(--grid-orange);
}

.sv-connector {
  fill: none;
  stroke: var(--line-grey);
  stroke-width: 1;
  stroke-dasharray: 3 4;
}

.sv-connector-head {
  fill: var(--grid-blue);
}

.sv-row {
  fill: var(--charcoal);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.sv-row--key {
  fill: var(--panel-black);
  stroke: var(--grid-orange);
}

.sv-key-edge {
  fill: var(--grid-orange);
}

.sv-bar {
  fill: var(--soft-grey);
}

.sv-bar--key {
  fill: var(--off-white);
}

.sv-bar--dim {
  fill: var(--line-grey);
}

.sv-label {
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  fill: var(--soft-grey);
  text-transform: uppercase;
}

.sv-caption {
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--soft-grey);
}

/* 15. Insights
   ========================================================================== */
.article-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  padding: clamp(1.5rem, 2.4vw, 2rem);
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.article-card:hover,
.article-card:focus-within {
  border-color: var(--grid-orange);
  transform: translateY(-2px);
}

.article-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--soft-grey);
}

.article-card__meta .orange {
  color: var(--grid-orange);
}

.article-card h3 {
  font-size: 1.35rem;
  margin: 0;
}

.article-card h3 a {
  text-decoration: none;
  color: var(--pure-white);
}

.article-card h3 a::before {
  content: "";
  position: absolute;
  inset: 0;
}

.article-card:hover h3 a {
  color: var(--grid-orange-hover);
}

.article-card p {
  color: var(--soft-grey);
  font-size: 1rem;
  margin: 0;
}

.article-card__foot {
  margin-top: auto;
  padding-top: 0.75rem;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--grid-orange);
}

/* 16. CTA band
   ========================================================================== */
.cta {
  position: relative;
  overflow: hidden;
  background: var(--deep-black);
  border-top: var(--border);
}

.cta__strips {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
}

.cta__inner {
  position: relative;
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  align-items: center;
}

@media (min-width: 900px) {
  .cta__inner {
    grid-template-columns: 1.2fr 1fr;
  }
}

.cta h2 {
  margin-bottom: 1.25rem;
}

.cta p {
  color: var(--soft-grey);
  max-width: 52ch;
}

.email-panel {
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--panel-black);
  border: var(--border);
  border-top: 2px solid var(--grid-orange);
  border-radius: var(--radius);
}

.email-panel__label {
  font-family: var(--font-mono);
  font-size: var(--step-label);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--soft-grey);
  margin: 0 0 0.5rem;
}

.email-panel__address {
  display: block;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--pure-white);
  text-decoration: none;
  word-break: break-word;
  overflow-wrap: anywhere;
  margin-bottom: 1.5rem;
}

.email-panel__address:hover {
  color: var(--grid-orange-hover);
}

.email-panel .cluster {
  gap: 0.75rem;
}

.copy-status {
  display: block;
  min-height: 1.5rem;
  margin-top: 0.875rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--grid-blue-bright);
}

.copy-status:empty {
  min-height: 0;
}

/* 17. Footer
   ========================================================================== */
.footer {
  border-top: var(--border);
  background: var(--carbon-black);
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
}

.footer__top {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  padding-bottom: 2.5rem;
  border-bottom: var(--border);
}

@media (min-width: 780px) {
  .footer__top {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

.footer__about p {
  color: var(--soft-grey);
  font-size: 1rem;
  max-width: 34ch;
  margin: 1.25rem 0 1.5rem;
}

.footer__contact {
  display: grid;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.footer__contact a {
  color: var(--off-white);
  text-decoration: none;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.footer__contact a:hover {
  color: var(--grid-orange-hover);
}

.footer h2 {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-weight: 400;
  font-stretch: normal;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--soft-grey);
  margin-bottom: 1.1rem;
}

.footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.footer__list a {
  color: var(--off-white);
  font-size: 0.9375rem;
  text-decoration: none;
}

.footer__list a:hover {
  color: var(--grid-orange-hover);
  text-decoration: underline;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--soft-grey);
}

.footer__tagline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-stretch: condensed;
  font-style: italic;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pure-white);
}

.footer__tagline::before {
  content: "";
  width: 22px;
  height: 4px;
  background-image: linear-gradient(
    90deg,
    var(--grid-blue) 0 33%,
    var(--grid-orange) 33% 66%,
    var(--pure-white) 66% 100%
  );
}

/* 18. Internal page furniture
   ========================================================================== */
.page-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2.5rem, 5vw, 4rem) clamp(3rem, 5vw, 4.5rem);
  border-bottom: var(--border);
  background: linear-gradient(180deg, var(--deep-black), var(--carbon-black));
}

.page-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 44%;
  height: 100%;
  background-image: repeating-linear-gradient(
    115deg,
    var(--line-grey) 0 1px,
    transparent 1px 18px
  );
  opacity: 0.5;
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  max-width: 62ch;
}

.page-hero h1 {
  margin-bottom: 1.25rem;
}

.page-hero .lead {
  color: var(--soft-grey);
}

.breadcrumbs {
  padding-block: 0.875rem;
  border-bottom: 1px solid rgba(42, 47, 52, 0.6);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--soft-grey);
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--ghost-grey);
}

.breadcrumbs a {
  color: var(--soft-grey);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--grid-orange-hover);
  text-decoration: underline;
}

.breadcrumbs [aria-current="page"] {
  color: var(--off-white);
}

/* Long-form content */
.prose {
  max-width: 68ch;
}

.prose h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin: 2.75rem 0 1rem;
}

.prose h3 {
  font-size: 1.2rem;
  margin: 2rem 0 0.75rem;
  color: var(--off-white);
}

.prose p,
.prose li {
  color: var(--soft-grey);
}

.prose strong {
  color: var(--off-white);
}

.prose a {
  color: var(--grid-blue-bright);
  text-decoration: underline;
  text-decoration-color: rgba(18, 184, 255, 0.4);
}

.prose a:hover {
  color: var(--grid-orange-hover);
  text-decoration-color: currentColor;
}

.prose ul,
.prose ol {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
}

.prose li {
  margin-bottom: 0.6rem;
  padding-left: 0.25rem;
}

.prose li::marker {
  color: var(--grid-orange);
}

.prose blockquote {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  border-left: 2px solid var(--grid-orange);
  background: var(--panel-black);
}

.prose blockquote p {
  color: var(--off-white);
  font-size: var(--step-lead);
  margin: 0;
}

.article-head {
  padding-block: clamp(2.5rem, 5vw, 3.5rem) 0;
}

.article-head h1 {
  max-width: 22ch;
  margin-bottom: 1.25rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  color: var(--soft-grey);
  margin-bottom: 1.75rem;
}

.article-rule {
  height: 2px;
  margin: 2rem 0 2.5rem;
  background: linear-gradient(
    90deg,
    var(--grid-orange) 0 60px,
    var(--grid-blue) 60px 90px,
    var(--line-grey) 90px 100%
  );
}

/* Definition-style blocks used on service and industry pages */
.spec {
  display: grid;
  gap: 1px;
  background: var(--line-grey);
  border: var(--border);
  border-radius: var(--radius);
}

@media (min-width: 720px) {
  .spec--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.spec__item {
  padding: clamp(1.35rem, 2.4vw, 1.85rem);
  background: var(--panel-black);
}

.spec__item h3 {
  margin-bottom: 0.6rem;
}

.spec__item p,
.spec__item li {
  color: var(--soft-grey);
  font-size: 1rem;
}

.spec__item ul {
  margin: 0;
  padding-left: 1.1rem;
}

.spec__item li {
  margin-bottom: 0.45rem;
}

.spec__item li::marker {
  color: var(--grid-blue);
}

.deliverables {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 720px) {
  .deliverables {
    grid-template-columns: repeat(2, 1fr);
  }
}

.deliverables li {
  display: grid;
  grid-template-columns: 12px 1fr;
  gap: 0.75rem;
  align-items: start;
  padding: 0.875rem 1rem;
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
  color: var(--off-white);
  font-size: 1rem;
}

.deliverables li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 0.6rem;
  transform: rotate(45deg);
  background: var(--grid-orange);
}

.prompt-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: prompt;
  display: grid;
  gap: 1px;
  background: var(--line-grey);
  border: var(--border);
}

.prompt-list li {
  counter-increment: prompt;
  display: grid;
  grid-template-columns: 2.25rem 1fr;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--panel-black);
  color: var(--off-white);
  font-size: 1rem;
}

.prompt-list li::before {
  content: counter(prompt, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--grid-orange);
  padding-top: 0.2rem;
}

/* 19. 404
   ========================================================================== */
.page-404 {
  display: grid;
  place-items: center;
  min-height: calc(100vh - var(--header-h));
  padding-block: clamp(3rem, 8vw, 6rem);
  text-align: center;
}

.page-404__code {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-style: italic;
  font-size: clamp(6rem, 20vw, 12rem);
  font-weight: 700;
  line-height: 0.85;
  color: var(--panel-black);
  -webkit-text-stroke: 1px var(--line-grey);
  margin-bottom: 1rem;
}

.page-404 .cluster {
  justify-content: center;
}

.page-404__links {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: var(--border);
  width: min(100%, 640px);
}

/* 20. Reduced motion
   ========================================================================== */
@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;
    scroll-behavior: auto !important;
  }

  .capstrip {
    padding-block: 1rem;
  }

  .capstrip__track {
    width: 100%;
    animation: none;
    flex-wrap: wrap;
    justify-content: center;
  }

  .capstrip__set--dup {
    display: none;
  }

  .capstrip__set {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 0;
  }

  .hv-pulse,
  .hv-pulse--blue,
  .hv-sweep {
    animation: none;
  }

  .hv-pulse,
  .hv-pulse--blue {
    opacity: 1;
  }

  .hv-sweep {
    opacity: 0.25;
  }

  .sys-link--live {
    animation: none;
  }

  .btn:hover,
  .card:hover,
  .article-card:hover {
    transform: none;
  }
}

/* 21. Concept art (work section placeholders)
   ========================================================================== */
.ca-plate {
  fill: var(--charcoal);
  stroke: var(--line-grey);
  stroke-width: 1;
}

.ca-mark {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 0.04em;
  fill: var(--pure-white);
}

.ca-type {
  font-family: var(--font-display);
  font-stretch: condensed;
  font-size: 44px;
  font-weight: 700;
  fill: var(--soft-grey);
}

.ca-chip--o {
  fill: var(--grid-orange);
}

.ca-chip--b {
  fill: var(--grid-blue);
}

.ca-chip--w {
  fill: var(--off-white);
}

.ca-rule {
  fill: none;
  stroke: var(--line-grey);
  stroke-width: 1;
}

.ca-stripe {
  fill: var(--grid-orange);
}

.ca-stripe-b {
  fill: var(--grid-blue);
}

.ca-bar {
  fill: var(--soft-grey);
}

.ca-cta {
  fill: var(--grid-orange);
}

.ca-dot {
  fill: var(--grid-blue);
}

.ca-link {
  fill: none;
  stroke: var(--line-grey);
  stroke-width: 1;
  stroke-dasharray: 2 3;
}

.ca-node {
  fill: var(--grid-orange);
}

/* 22. Case study component (reusable — see /work/index.html)
   ========================================================================== */
.case {
  margin-bottom: 1rem;
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}

.case:hover {
  border-color: var(--line-grey);
}

.case__inner {
  display: grid;
}

@media (min-width: 900px) {
  .case__inner {
    grid-template-columns: 0.85fr 1.15fr;
  }
}

.case__media {
  border-bottom: var(--border);
}

@media (min-width: 900px) {
  .case__media {
    border-bottom: 0;
    border-right: var(--border);
    aspect-ratio: auto;
  }
}

.case__body {
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.case__body h3 {
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
  margin: 0.35rem 0 0.875rem;
}

.case__body h4 {
  font-size: 0.8125rem;
  margin: 1.5rem 0 0.75rem;
}

.case__body .lead {
  margin-bottom: 0.5rem;
}

.case__list {
  margin: 0 0 1.25rem;
  padding-left: 1.1rem;
}

.case__list li {
  color: var(--soft-grey);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.case__list li::marker {
  color: var(--grid-blue);
}

.case__note {
  padding: 0.875rem 1rem;
  background: var(--deep-black);
  border-left: 2px solid var(--grid-orange);
  color: var(--soft-grey);
  font-size: 0.9375rem;
  margin: 0;
}

.case__note strong {
  color: var(--off-white);
}

/* 23. Insights index
   ========================================================================== */
.article-list {
  display: grid;
  gap: 1rem;
}

.article-lead {
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background: var(--panel-black);
  border: var(--border);
  border-left: 2px solid var(--grid-orange);
  border-radius: var(--radius);
}

@media (min-width: 900px) {
  .article-lead {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }
}

.article-lead h3 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin: 0.75rem 0 1rem;
}

.article-lead h3 a {
  color: var(--pure-white);
  text-decoration: none;
}

.article-lead h3 a::before {
  content: "";
  position: absolute;
  inset: 0;
}

.article-lead:hover h3 a {
  color: var(--grid-orange-hover);
}

.article-lead p {
  color: var(--soft-grey);
}

.article-toc {
  padding: 1.25rem 1.5rem;
  margin-bottom: 2rem;
  background: var(--panel-black);
  border: var(--border);
  border-radius: var(--radius);
}

.article-toc h2 {
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-weight: 400;
  font-stretch: normal;
  letter-spacing: 0.16em;
  color: var(--soft-grey);
  margin: 0 0 0.875rem;
}

.article-toc ol {
  margin: 0;
  padding-left: 1.1rem;
}

.article-toc li {
  margin-bottom: 0.4rem;
}

.article-cta {
  display: grid;
  gap: 1rem;
  padding: clamp(1.5rem, 3vw, 2rem);
  margin-top: 3rem;
  background: var(--panel-black);
  border: var(--border);
  border-top: 2px solid var(--grid-orange);
  border-radius: var(--radius);
}

.article-cta h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  margin: 0;
}

.article-cta p {
  color: var(--soft-grey);
  margin: 0;
}