/* ------------------------------------------------------------------
   MountainDesk Harness — editorial midnight edition
   Fraunces display serif + Inter text, glacier/lilac ink, hairlines,
   film grain, blueprint textures, app-window chrome.
   Everything is scoped to .harness-page / harness-* classes so the
   shared styles.css (header, footer, buttons, reveal) keeps working.
-------------------------------------------------------------------*/

.harness-page {
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-text: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", SFMono-Regular, Consolas, monospace;
  --ink: #f2f8ff;
  --muted: #a3b9d6;
  --hairline: rgba(148, 186, 255, .14);
  --hairline-soft: rgba(148, 186, 255, .09);
  --line-soft: rgba(148, 186, 255, .2);
  --glacier: #7ee7ff;
  --lilac: #a992ff;
  --leaf: #4ee3a6;
  font-family: var(--font-text);
}

body.harness-page {
  background:
    radial-gradient(circle at 14% 6%, rgba(53, 217, 255, .12), transparent 30rem),
    radial-gradient(ellipse at 86% 16%, rgba(122, 92, 255, .13), transparent 28rem),
    radial-gradient(ellipse at 50% 58%, rgba(22, 52, 92, .12), transparent 46rem),
    linear-gradient(180deg, #06101d 0%, #071426 46%, #061321 100%);
  font-family: var(--font-text);
}

/* film grain */
.harness-page::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='170' height='170'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='170' height='170' filter='url(%23g)' opacity='0.6'/%3E%3C/svg%3E");
  background-size: 170px;
  animation: grain-shift 8s ease-in-out infinite;
}

@keyframes grain-shift {
  0%, 100% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 3%); }
  50% { transform: translate(3%, -2%); }
  75% { transform: translate(-1%, -3%); }
}

@media (prefers-reduced-motion: reduce) {
  .harness-page::before { animation: none; }
  .ticker-track,
  .rule-fill,
  .showcase-image,
  .harness-hero-visual::before { animation: none !important; }
}

/* ---------- shared chrome tuned for this page ---------- */

.harness-page .site-header {
  border-color: var(--hairline);
  border-radius: 16px;
  background: rgba(7, 18, 34, .74);
  box-shadow: 0 18px 42px rgba(2, 9, 20, .35);
}

.harness-page .brand img { border-radius: 11px; }

.harness-page .brand {
  font-family: var(--font-display);
  font-weight: 560;
  letter-spacing: .01em;
}

.harness-page #main-nav a.active { color: var(--glacier); }

.harness-page #main-nav a.active::after {
  content: "";
  display: block;
  width: 100%;
  height: 1px;
  margin-top: 5px;
  background: linear-gradient(90deg, var(--glacier), transparent);
}

.harness-page a:focus-visible {
  outline: 1px solid var(--glacier);
  outline-offset: 3px;
  border-radius: 4px;
}

.harness-page .eyebrow {
  color: #9fb6d6;
  letter-spacing: .26em;
}

.harness-page .eyebrow > span:first-child {
  width: 42px;
  height: 1px;
  background: linear-gradient(90deg, var(--glacier), rgba(169, 146, 255, .55));
}

.harness-page .section-kicker {
  color: var(--glacier);
  font: 600 10.5px var(--font-mono);
  letter-spacing: .28em;
  text-transform: uppercase;
}

.harness-page .section-kicker::before {
  content: "» ";
  color: var(--lilac);
}

.harness-page .harness-intro-heading h2,
.harness-page .showcase-copy h2,
.harness-page .steps-heading h2,
.harness-page .download-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 540;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.06;
  letter-spacing: -.015em;
}

.harness-page .button-primary {
  position: relative;
  overflow: hidden;
  border-radius: 13px;
  color: #05121f;
  background: linear-gradient(112deg, #8ceaff 0%, #9f92ff 100%);
  font-weight: 680;
  box-shadow: 0 16px 44px rgba(126, 205, 255, .22), inset 0 1px 0 rgba(255, 255, 255, .45);
  transition: transform .25s ease, box-shadow .25s ease;
}

.harness-page .button-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .55) 48%, transparent 66%);
  transform: translateX(-120%);
  transition: transform .65s ease;
  pointer-events: none;
}

.harness-page .button-primary:hover { transform: translateY(-1px); }
.harness-page .button-primary:hover::before { transform: translateX(120%); }

.harness-page .button-outline {
  border: 1px solid rgba(148, 186, 255, .3);
  border-radius: 13px;
  background: rgba(10, 22, 40, .4);
  transition: border-color .25s ease, background .25s ease;
}

.harness-page .button-outline:hover {
  border-color: rgba(126, 231, 255, .55);
  background: rgba(16, 36, 64, .55);
}

.harness-page .text-link { color: #cfe4ff; }

.harness-page .text-link > span[aria-hidden="true"] {
  display: inline-block;
  transition: transform .3s ease;
}

.harness-page .text-link:hover > span[aria-hidden="true"] { transform: translateY(4px); }

/* reveal system tuned to the editorial rhythm */
.harness-page .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .9s cubic-bezier(.16, .8, .24, 1), transform .9s cubic-bezier(.16, .8, .24, 1);
}

.harness-page .reveal.delay-one { transition-delay: .12s; }
.harness-page .reveal.delay-two { transition-delay: .24s; }
.harness-page .reveal.visible { opacity: 1; transform: none; }

/* ---------- hero ---------- */

.harness-hero {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, .78fr) minmax(520px, 1.22fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  padding: clamp(86px, 10vw, 134px) 0 clamp(58px, 8vw, 96px);
}

.harness-hero-copy { position: relative; }

.hero-index {
  position: absolute;
  top: -46px;
  left: 0;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
}

.hero-index span {
  font: 500 9.5px var(--font-mono);
  letter-spacing: .34em;
  color: #5f7d9d;
}

.hero-index i {
  width: 48px;
  height: 1px;
  background: linear-gradient(90deg, rgba(126, 231, 255, .55), transparent);
}

.hero-index b {
  font: italic 500 14px var(--font-display);
  letter-spacing: .12em;
  color: rgba(169, 146, 255, .85);
}

.harness-hero h1 {
  margin: 26px 0 22px;
  max-width: 15ch;
  font-family: var(--font-display);
  font-weight: 430;
  font-size: clamp(46px, 6.4vw, 80px);
  line-height: 1.04;
  letter-spacing: -.018em;
}

.harness-hero h1 em {
  display: block;
  padding-right: .1em;
  font-style: italic;
  background: linear-gradient(97deg, #9ff0ff 0%, #7fb0ff 46%, #c3aeff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 26px rgba(122, 92, 255, .16));
}

.harness-hero .hero-lede {
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}

.harness-badges {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 40px;
}

.harness-badges span {
  position: relative;
  overflow: hidden;
  min-width: 0;
  padding: 13px 14px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: linear-gradient(160deg, rgba(18, 38, 66, .5), rgba(8, 18, 34, .4));
}

.harness-badges span::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 55%;
  height: 1px;
  background: linear-gradient(90deg, rgba(126, 231, 255, .6), transparent);
}

.harness-badges b,
.harness-badges small { display: block; }

.harness-badges b {
  color: #eaf4ff;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .02em;
}

.harness-badges small {
  margin-top: 5px;
  color: var(--muted);
  font: 10.5px var(--font-mono);
  letter-spacing: .03em;
  line-height: 1.4;
}

.harness-hero-visual {
  position: relative;
  margin: 0;
  padding: 10px;
  border: 1px solid rgba(140, 180, 255, .18);
  border-radius: 20px;
  background: linear-gradient(150deg, rgba(15, 33, 58, .85), rgba(7, 17, 33, .92));
  box-shadow: 0 42px 110px rgba(2, 9, 20, .62), 0 0 0 1px rgba(126, 231, 255, .05);
  transform: perspective(1400px) rotateY(-2deg) rotateX(1deg);
}

.harness-hero-visual::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(126, 231, 255, .34), transparent 40%, rgba(169, 146, 255, .3));
  filter: blur(1px);
  animation: border-breathe 7s ease-in-out infinite;
}

@keyframes border-breathe {
  50% { opacity: .72; }
}

.frame-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(140, 180, 255, .1);
}

.frame-bar i {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: rgba(255, 123, 141, .65);
}

.frame-bar i:nth-child(2) { background: rgba(255, 189, 102, .7); }
.frame-bar i:nth-child(3) { background: rgba(78, 227, 166, .75); }

.frame-bar span {
  margin-left: 8px;
  font: 500 10px var(--font-mono);
  letter-spacing: .18em;
  color: #7d97b8;
}

.harness-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
}

.harness-hero-visual figcaption {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 14px 10px 4px;
  color: #8fa9c8;
  font: 11px var(--font-mono);
  letter-spacing: .06em;
}

.visual-glow {
  position: absolute;
  inset: 12% 5%;
  z-index: -2;
  border-radius: 50%;
  background: rgba(48, 164, 255, .3);
  filter: blur(80px);
}

.live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--leaf);
  box-shadow: 0 0 0 5px rgba(78, 227, 166, .1);
  animation: pulse-dot 3s ease-in-out infinite;
}

@keyframes pulse-dot {
  50% { box-shadow: 0 0 0 9px rgba(78, 227, 166, .03); }
}

/* ---------- capability ticker ---------- */

.capability-ticker {
  position: relative;
  z-index: 1;
  overflow: hidden;
  padding: 24px 0;
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
  background: rgba(6, 16, 30, .5);
}

.ticker-track {
  display: flex;
  width: max-content;
  animation: ticker-drift 38s linear infinite;
}

.capability-ticker:hover .ticker-track { animation-play-state: paused; }

.ticker-line {
  display: flex;
  align-items: center;
  gap: 34px;
  padding-right: 34px;
  font: 500 12px var(--font-text);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: #8fa9c8;
  white-space: nowrap;
}

.ticker-line .sep {
  color: rgba(126, 231, 255, .75);
  font-size: 8px;
  transform: translateY(-1px);
}

@keyframes ticker-drift { to { transform: translateX(-50%); } }

/* ---------- intro ---------- */

.harness-intro {
  position: relative;
  z-index: 1;
  padding: clamp(74px, 10vw, 128px) 0;
  border-top: 1px solid var(--hairline-soft);
}

.harness-intro-heading {
  display: grid;
  grid-template-columns: .45fr 1.55fr;
  gap: 36px;
  align-items: start;
}

.harness-intro-lede {
  max-width: 780px;
  margin: 26px 0 56px auto;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.7;
}

.harness-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.harness-feature-card {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  padding: 30px 26px 26px;
  border: 1px solid var(--hairline-soft);
  border-radius: 18px;
  background:
    linear-gradient(168deg, rgba(17, 36, 64, .62), rgba(8, 19, 36, .55)),
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(148, 186, 255, .03) 27px 28px),
    repeating-linear-gradient(90deg, transparent 0 27px, rgba(148, 186, 255, .03) 27px 28px);
  transition: transform .4s cubic-bezier(.2, .7, .2, 1), border-color .4s ease, box-shadow .4s ease;
}

.harness-feature-card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 26px;
  width: 34px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--glacier), var(--lilac));
  box-shadow: 0 0 12px rgba(126, 231, 255, .45);
}

.harness-feature-card::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -70px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: rgba(53, 217, 255, .07);
  filter: blur(25px);
  transition: background .4s ease;
}

.harness-feature-card:hover {
  transform: translateY(-6px);
  border-color: rgba(126, 231, 255, .38);
  box-shadow: 0 24px 64px rgba(3, 12, 26, .55), 0 0 0 1px rgba(126, 231, 255, .1);
}

.harness-feature-card:hover::after { background: rgba(53, 217, 255, .12); }

.feature-number {
  position: absolute;
  top: 18px;
  right: 22px;
  font: italic 480 32px var(--font-display);
  color: transparent;
  -webkit-text-stroke: 1px rgba(126, 231, 255, .35);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  color: #06121e;
  background: linear-gradient(140deg, #93ecff, #9d8bff);
  clip-path: polygon(30% 0, 70% 0, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0 70%, 0 30%);
  font-size: 19px;
}

.harness-feature-card h3 {
  margin: 44px 0 12px;
  font-size: 20px;
  font-weight: 640;
  letter-spacing: -.01em;
}

.harness-feature-card p,
.showcase-copy p,
.steps-grid p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 14.5px;
}

/* ---------- showcase ---------- */

.harness-showcase {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: .82fr 1.18fr;
  gap: clamp(40px, 7vw, 96px);
  align-items: center;
  padding: clamp(64px, 9vw, 120px) 0;
  border-top: 1px solid var(--hairline-soft);
}

.showcase-copy h2 { margin: 16px 0 22px; }

.showcase-copy > p {
  font-size: 16.5px;
  color: var(--muted);
}

.harness-checklist {
  display: grid;
  gap: 13px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.harness-checklist li {
  position: relative;
  padding-left: 38px;
  color: #d8e9fb;
  line-height: 22px;
}

.harness-checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 1px solid rgba(148, 186, 255, .25);
  border-radius: 7px;
  color: var(--leaf);
  background: rgba(78, 227, 166, .07);
  font-size: 11px;
  font-weight: 700;
}

.showcase-stack { position: relative; min-height: 590px; }

.showcase-image {
  position: absolute;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(148, 186, 255, .16);
  border-radius: 16px;
  background: #0b1728;
  box-shadow: 0 36px 92px rgba(2, 10, 22, .55);
}

.showcase-image img { display: block; width: 100%; height: auto; }

.showcase-image-main {
  inset: 0 11% auto 0;
  transform: rotate(-1.4deg);
  animation: float-a 12s ease-in-out infinite;
}

.showcase-image-secondary {
  right: 0;
  bottom: 0;
  width: 60%;
  transform: rotate(1.8deg);
  animation: float-b 14s ease-in-out infinite;
}

@keyframes float-a {
  50% { transform: rotate(-1.4deg) translateY(-10px); }
}

@keyframes float-b {
  50% { transform: rotate(1.8deg) translateY(8px); }
}

.showcase-image figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--hairline-soft);
  color: #8fa9c8;
  font: 11px var(--font-mono);
  letter-spacing: .05em;
}

/* ---------- pull quote ---------- */

.harness-voices {
  position: relative;
  z-index: 1;
  padding: clamp(66px, 9vw, 112px) 0;
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
  text-align: center;
}

.harness-voices::before {
  content: "";
  position: absolute;
  inset: 30% -100px 0;
  pointer-events: none;
  background: radial-gradient(circle, rgba(122, 92, 255, .13), transparent 62%);
}

.pull-quote {
  position: relative;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

.pull-quote blockquote {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 460;
  font-size: clamp(28px, 4.6vw, 54px);
  line-height: 1.14;
  letter-spacing: -.012em;
  background: linear-gradient(96deg, #f2f8ff, #bfe3ff 52%, #cdbdff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.pull-quote figcaption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 28px;
  font: 10px var(--font-mono);
  letter-spacing: .3em;
  text-transform: uppercase;
  color: #7d97b8;
}

.pull-quote figcaption::before,
.pull-quote figcaption::after {
  content: "";
  width: 56px;
  height: 1px;
}

.pull-quote figcaption::before { background: linear-gradient(90deg, transparent, rgba(126, 231, 255, .7)); }
.pull-quote figcaption::after { background: linear-gradient(90deg, rgba(126, 231, 255, .7), transparent); }

/* ---------- steps ---------- */

.harness-steps {
  position: relative;
  z-index: 1;
  padding: clamp(70px, 9vw, 110px) 0;
}

.steps-heading {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  margin-bottom: 46px;
}

.steps-heading h2 { max-width: 650px; }

.steps-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: 20px;
  background: linear-gradient(120deg, rgba(126, 231, 255, .16), rgba(169, 146, 255, .14));
}

.steps-grid article {
  position: relative;
  min-height: 235px;
  padding: 28px 26px 26px;
  background: #0a192c;
  transition: background .35s ease;
}

.steps-grid article:hover { background: #0c1f36; }

.steps-grid article > span {
  display: block;
  font: italic 480 26px var(--font-display);
  color: transparent;
  -webkit-text-stroke: 1px rgba(126, 231, 255, .6);
}

.steps-grid h3 {
  margin: 58px 0 12px;
  font-size: 19px;
  font-weight: 640;
}

.rule-fill {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  width: 25.2%;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(126, 231, 255, .1), transparent 42%);
  border-right: 1px solid rgba(126, 231, 255, .28);
  box-shadow: 4px 0 26px rgba(126, 231, 255, .16);
  animation: rail-sweep 9s cubic-bezier(.6, 0, .4, 1) infinite;
}

@keyframes rail-sweep {
  0% { left: 0; opacity: 0; }
  8% { opacity: 1; }
  88% { opacity: 1; }
  100% { left: 74.8%; opacity: 0; }
}

/* ---------- download ---------- */

.harness-download {
  position: relative;
  z-index: 1;
  padding: clamp(60px, 9vw, 110px) 0 96px;
}

.download-panel {
  position: relative;
  display: grid;
  grid-template-columns: 1fr .9fr;
  gap: clamp(32px, 7vw, 90px);
  align-items: center;
  padding: clamp(30px, 5vw, 62px);
  overflow: hidden;
  border: 1px solid rgba(148, 186, 255, .2);
  border-radius: 26px;
  background:
    radial-gradient(120% 90% at -10% 0%, rgba(53, 217, 255, .15), transparent 50%),
    radial-gradient(110% 100% at 110% 100%, rgba(122, 92, 255, .17), transparent 55%),
    linear-gradient(140deg, rgba(14, 34, 62, .95), rgba(7, 18, 34, .97));
  box-shadow: 0 50px 130px rgba(2, 10, 22, .6), inset 0 1px 0 rgba(255, 255, 255, .05);
}

.panel-mesh {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(148, 186, 255, .05) 0 1px, transparent 1px 52px),
    repeating-linear-gradient(0deg, rgba(148, 186, 255, .04) 0 1px, transparent 1px 52px);
  -webkit-mask: radial-gradient(circle at 50% 120%, black, transparent 76%);
  mask: radial-gradient(circle at 50% 120%, black, transparent 76%);
}

.download-copy { position: relative; }
.download-copy h2 { margin: 18px 0; }

.download-copy > p {
  max-width: 610px;
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.7;
}

.license-note {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-top: 22px !important;
  font-size: 13px !important;
  color: #8fa9c8;
}

.license-note > span:first-child {
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 7px;
  color: #03151a;
  background: var(--leaf);
  font-weight: 800;
}

.download-options { position: relative; display: grid; gap: 12px; }

.download-card {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  gap: 16px;
  align-items: center;
  min-height: 86px;
  padding: 16px;
  overflow: hidden;
  border: 1px solid rgba(148, 186, 255, .22);
  border-radius: 16px;
  background: linear-gradient(150deg, rgba(13, 29, 52, .72), rgba(7, 17, 32, .6));
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}

.download-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -40%;
  width: 32%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(126, 231, 255, .09), transparent);
  transform: skewX(-18deg);
  transition: left .55s ease;
  pointer-events: none;
}

.download-card:hover {
  transform: translateY(-3px);
  border-color: rgba(126, 231, 255, .5);
  background: rgba(15, 35, 60, .85);
}

.download-card:hover::after { left: 112%; }

.download-card b,
.download-card small { display: block; }

.download-card b {
  color: #eef7ff;
  font-size: 16.5px;
  font-weight: 650;
}

.download-card small {
  margin-top: 5px;
  color: var(--muted);
  font: 11px var(--font-mono);
  letter-spacing: .02em;
}

.platform-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  color: #07111f;
  background: linear-gradient(140deg, #93ecff, #9d8bff);
  box-shadow: 0 10px 26px rgba(120, 210, 255, .22);
  font-size: 25px;
}

.platform-icon.apple {
  color: #dcecff;
  background: linear-gradient(140deg, #304a6b, #1a2840);
}

.download-arrow {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(148, 186, 255, .2);
  border-radius: 50%;
  color: var(--glacier);
  background: rgba(14, 32, 56, .6);
  transition: transform .25s ease, border-color .25s ease;
}

.download-card:hover .download-arrow {
  transform: translateY(2px);
  border-color: rgba(126, 231, 255, .5);
}

/* ---------- footer ---------- */

.harness-page .site-footer {
  border-top: 1px solid var(--hairline-soft);
  padding: 40px 0 76px;
}

.harness-page .site-footer p {
  font-family: var(--font-display);
  font-style: italic;
  color: #8fa9c8;
}

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .harness-hero,
  .harness-showcase,
  .download-panel {
    grid-template-columns: 1fr;
  }

  .harness-hero { padding-top: 74px; }
  .harness-hero-visual { transform: none; }
  .harness-hero h1 { max-width: 16ch; }
  .harness-feature-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-stack { min-height: 660px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .rule-fill { width: 50.2%; }

  @keyframes rail-sweep {
    0% { left: 0; opacity: 0; }
    8% { opacity: 1; }
    88% { opacity: 1; }
    100% { left: 49.8%; opacity: 0; }
  }
}

@media (max-width: 720px) {
  .harness-hero h1 {
    font-size: clamp(42px, 11vw, 62px);
    margin-top: 8px;
  }

  .hero-index {
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
  }

  .hero-index i { width: 40px; height: 1px; background: linear-gradient(90deg, rgba(126, 231, 255, .55), transparent); }

  .harness-badges,
  .harness-feature-grid,
  .steps-grid,
  .harness-intro-heading {
    grid-template-columns: 1fr;
  }

  .harness-badges { gap: 10px; }
  .harness-intro-lede { margin-left: 0; }

  .showcase-stack {
    display: grid;
    gap: 16px;
    min-height: 0;
  }

  .showcase-image,
  .showcase-image-main,
  .showcase-image-secondary {
    position: relative;
    inset: auto;
    width: 100%;
    transform: none;
    animation: none;
  }

  .steps-heading { display: grid; align-items: start; }
  .steps-grid { background: var(--line-soft); }
  .steps-grid article { border-top: 1px solid var(--hairline-soft); }
  .steps-grid article:first-of-type { border-top: 0; }
  .rule-fill { display: none; }

  .download-card {
    grid-template-columns: 44px 1fr auto;
    gap: 12px;
  }

  .platform-icon { width: 44px; height: 44px; }
}