:root {
  color-scheme: light dark;
  --section-soft: #f5f6f8;
  --hero-surface: #b6cbe2;
  --white: #fff;
  --ink: #0b0d10;
  --muted: #586373;
  --blue: #1652f0;
  --pale: #eef3ff;
  --line: #dce1e8;
  --dark-line: #343a45;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 110px; }
body { margin: 0; color: var(--ink); background: var(--white); font: 16px/1.7 var(--sans); -webkit-font-smoothing: antialiased; }
/* The footer always sits at the bottom of the window, even on short pages. */
body { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
body > main { flex: 1 0 auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: none; text-decoration: underline; text-decoration-color: var(--blue); text-decoration-thickness: 2px; text-underline-offset: 6px; }
/* Inner focus ring, like a desktop button: it does not change the size. */
button:focus-visible, .navigation .client-access:focus-visible { outline: 1px dotted currentColor; outline-offset: -5px; box-shadow: none; text-decoration: none; }
.brand:focus-visible { outline: none; box-shadow: inset 0 -2px 0 var(--blue); }
.navigation-focus:focus-visible { outline: none; box-shadow: -3px 0 0 var(--blue); }
.skip:focus-visible { text-decoration-color: currentColor; }
a:focus:not(:focus-visible), button:focus:not(:focus-visible) { outline: none; }
@media (forced-colors: active) {
  a:focus-visible, button:focus-visible, .brand:focus-visible, .navigation-focus:focus-visible { outline: 2px solid Highlight; outline-offset: 2px; }
  button:focus-visible, .navigation .client-access:focus-visible { outline: 1px dotted ButtonText; outline-offset: -5px; }
}
::selection { background: var(--blue); color: white; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 600; line-height: 1.12; }
p { color: var(--muted); }
.wrap { width: min(1240px, 88%); margin-inline: auto; }
.skip { position: fixed; left: 20px; top: -100px; z-index: 50; padding: 12px; background: var(--ink); color: white; }
.skip:focus { top: 12px; }
.brand { display: inline-block; padding: 9px; line-height: 0; flex-shrink: 0; }
.brand img { display: block; width: 112px; height: auto; }
.header .brand img { width: 140px; }
.header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.97); border-bottom: 1px solid var(--line); }
.header-inner { min-height: 92px; display: flex; align-items: center; gap: 36px; }
.navigation { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 0 36px; margin-left: auto; font-size: 14px; font-weight: 500; }
.navigation a { padding-block: 12px; }
.navigation .client-access { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 10px 20px; border: 1px solid #626b77; background: #626b77; color: var(--white); white-space: nowrap; }
.navigation .client-access:hover { background: #4b535e; border-color: #4b535e; color: var(--white); }
.navigation .client-access:active { background: #3e4650; border-color: #3e4650; }
.navigation .client-access::after { content: none; }
.navigation a:hover, .footer a:hover { color: var(--blue); }
.eyebrow { display: flex; gap: 12px; align-items: center; color: var(--blue); font-size: 12px; letter-spacing: .13em; font-weight: 650; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; }
.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: 94px;
  /* Light slate base: depth at the edges and light at the common origin. */
  background:
    radial-gradient(ellipse at 50% 155%, rgba(255,255,255,.82) 0%, rgba(246,250,255,.30) 36%, transparent 72%),
    linear-gradient(180deg, #e7edf4 0%, #dce5f0 60%, #d3dfed 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  /* Angles from the ground: 90° blue, 135° teal, 45° violet.
     In conic-gradient 0° points up; the common origin is 55% below the hero.
     110° openings with a gradual falloff so the colors overlap without bands. */
  background:
    conic-gradient(from -55deg at 50% 155%,
      rgba(66,125,246,0) 0deg, rgba(66,125,246,.025) 12deg,
      rgba(66,125,246,.11) 27deg, rgba(66,125,246,.25) 42deg,
      rgba(66,125,246,.32) 55deg, rgba(66,125,246,.25) 68deg,
      rgba(66,125,246,.11) 83deg, rgba(66,125,246,.025) 98deg,
      rgba(66,125,246,0) 110deg),
    conic-gradient(from 260deg at 50% 155%,
      rgba(57,183,210,0) 0deg, rgba(57,183,210,.025) 12deg,
      rgba(57,183,210,.10) 27deg, rgba(57,183,210,.23) 42deg,
      rgba(57,183,210,.30) 55deg, rgba(57,183,210,.23) 68deg,
      rgba(57,183,210,.10) 83deg, rgba(57,183,210,.025) 98deg,
      rgba(57,183,210,0) 110deg),
    conic-gradient(from -10deg at 50% 155%,
      rgba(181,119,201,0) 0deg, rgba(181,119,201,.02) 12deg,
      rgba(181,119,201,.09) 27deg, rgba(181,119,201,.20) 42deg,
      rgba(181,119,201,.27) 55deg, rgba(181,119,201,.20) 68deg,
      rgba(181,119,201,.09) 83deg, rgba(181,119,201,.02) 98deg,
      rgba(181,119,201,0) 110deg);
  background-blend-mode: screen;
  opacity: .50;
  filter: blur(clamp(40px, 4vw, 80px));
  -webkit-mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,.85) 25%, rgba(0,0,0,.50) 65%, rgba(0,0,0,.14) 100%);
  mask-image: linear-gradient(to top, #000 0%, rgba(0,0,0,.85) 25%, rgba(0,0,0,.50) 65%, rgba(0,0,0,.14) 100%);
}
.hero-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 7%; align-items: center; }
.hero-layout > * { min-width: 0; }
.hero .lead, .hero .diagram-label, .hero figcaption, .hero .hero-baseline { color: #37465a; }
.hero .eyebrow { color: #1242bc; }
.hero .hero-baseline { border-color: #94acc8; }
h1 { font-size: clamp(46px, 5.2vw, 76px); letter-spacing: -.052em; line-height: 1.08; margin-top: 26px; font-weight: 600; }
h1 em { font-style: normal; color: var(--blue); }
.lead { font-size: 19px; line-height: 1.75; max-width: 530px; margin-top: 28px; }
.button { display: inline-flex; align-items: center; justify-content: space-between; gap: 26px; min-height: 54px; padding: 15px 23px; font-size: 14px; font-weight: 600; }
.core-diagram { margin: 0; padding: 12px 12px 0; }
.diagram-label { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 24px; text-align: center; }
.application-layer { margin: 0 18px; padding: 25px 26px 0; border: 1px solid var(--line); border-top: 2px solid var(--blue); border-radius: 4px; background: var(--white); box-shadow: 0 10px 30px rgba(18,35,65,.055); }
.application-layer h2 { font-size: clamp(22px, 2.2vw, 28px); letter-spacing: -.03em; line-height: 1.25; }
.application-layer > p { margin-top: 10px; font-size: 15px; }
.application-domains { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; list-style: none; padding: 17px 0; margin: 22px 0 0; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.application-domains li + li { border-left: 1px solid var(--line); padding-left: 12px; }
/* Each part of the application sits right above its connector line, with weight. */
.application-domains li { display: flex; align-items: center; justify-content: center; gap: 8px; color: var(--ink); font-size: 16px; font-weight: 600; letter-spacing: -.01em; }
.application-domains li + li { padding-left: 0; }
.application-domains li::before { content: ""; flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.core-connections { display: block; width: 100%; height: 72px; overflow: visible; color: var(--blue); }
.core-connections path { vector-effect: non-scaling-stroke; stroke-dasharray: none; }
.core-stack { position: relative; isolation: isolate; }
.core-layer { position: relative; padding: 29px 30px 30px; background: var(--ink); color: white; border: 1px solid #263141; border-radius: 5px; box-shadow: 2px 4px 9px rgba(11,13,16,.12); }
/* Front plates: stepped widths and vertical spacing.
   They stay centered; they do not shift sideways. */
.core-stack::before, .core-stack::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 44px;
  border: 1px solid rgba(255,255,255,.85);
  border-radius: 5px;
  background: linear-gradient(180deg, rgba(255,255,255,.30), rgba(255,255,255,.72));
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.core-stack::before { z-index: -1; left: 10px; right: 10px; bottom: -8px; box-shadow: 0 9px 12px -6px rgba(11,13,16,.20); }
.core-stack::after { z-index: -2; left: 20px; right: 20px; bottom: -18px; border-color: rgba(255,255,255,.65); box-shadow: 0 14px 18px -8px rgba(11,13,16,.18); }
.core-label { color: #b6beca; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.core-layer h3 { font-size: clamp(27px, 2.65vw, 35px); line-height: 1.2; letter-spacing: -.035em; margin: 14px 0; }
.core-layer h3 span { color: #5b84ff; }
.core-layer > p:last-child { color: #c7cfdb; font-size: 16px; }
.core-diagram figcaption { margin-top: 80px; text-align: center; font-size: 15px; line-height: 1.6; color: var(--muted); }
.core-diagram figcaption strong { display: block; color: var(--ink); font-weight: 600; }
.hero-baseline { display: flex; justify-content: space-between; align-items: center; gap: 24px; margin-top: 72px; padding: 28px 0; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.baseline-values { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 10px 32px; color: var(--ink); font-weight: 500; }
.baseline-values li { display: inline-flex; align-items: center; gap: 10px; }
/* A check mark: these are qualities of the foundation, not links. */
.baseline-values li::before { content: ""; flex: 0 0 auto; width: 10px; height: 5px; margin-top: -3px; border-left: 2px solid var(--blue); border-bottom: 2px solid var(--blue); transform: rotate(-45deg); }
.intro { padding: 90px 0; background: var(--white); }
.intro-layout { display: block; }
.intro-layout > .eyebrow { margin-bottom: 24px; }
.intro-copy h2 { font-size: clamp(30px, 3vw, 42px); line-height: 1.24; letter-spacing: -.035em; max-width: 960px; text-wrap: balance; }
.intro-copy p { margin-top: 26px; font-size: 18px; max-width: 900px; }
.section { padding: 100px 0; }
/* Full-width rhythm: hero / white / soft / white /
   black banner / white / D4U blue store band / white. */
.capabilities-section { background: var(--section-soft); }
.section-head { display: grid; grid-template-columns: 1.2fr 1fr; gap: 10%; margin-top: 24px; margin-bottom: 52px; align-items: end; }
.section-head h2 { font-size: clamp(34px, 3.4vw, 48px); letter-spacing: -.04em; }
.section-head p { font-size: 17px; max-width: 480px; }
.capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); }
.capability { padding: 34px 30px 36px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); }
.capability:nth-child(3n) { border-right: 0; }
.capability:nth-child(3n + 1) { padding-left: 0; }
.capability-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 28px; color: var(--blue); }
.capability-top svg { width: 30px; height: 30px; }
.capability-top span { font-size: 12px; color: var(--muted); }
.capability h3 { font-size: 22px; line-height: 1.28; letter-spacing: -.025em; min-height: 57px; max-width: 280px; }
.capability p { margin-top: 16px; font-size: 16px; line-height: 1.7; }
.technology-note { display: flex; gap: 30px; padding-top: 26px; font-size: 14px; }
.technology-note strong { flex-shrink: 0; color: var(--ink); font-weight: 600; }
.approach { background: var(--white); color: var(--ink); padding: 90px 0; }
.approach .eyebrow { color: var(--blue); }
.approach .section-head { align-items: start; }
.approach p { color: var(--muted); }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.step { border-top: 1px solid var(--line); padding-top: 24px; }
.step span { font-size: 14px; color: var(--blue); }
.step h3 { font-size: 23px; margin: 22px 0 16px; }
.step p { font-size: 15px; line-height: 1.7; }
.closing { padding: 80px 0; background: var(--ink); color: var(--white); }
.closing .wrap { display: flex; gap: 48px; align-items: center; justify-content: space-between; }
.closing h2 { font-size: clamp(30px, 3vw, 42px); letter-spacing: -.035em; max-width: 740px; }
.closing p { margin-top: 18px; max-width: 700px; color: #b6beca; }
.closing .brand img { width: 175px; }
.contact { padding: 80px 0; background: var(--white); border-top: 1px solid var(--line); }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 10%; align-items: center; }
.contact h2 { font-size: clamp(32px, 3.2vw, 46px); letter-spacing: -.035em; margin: 24px 0; }
.contact-copy > p:last-child { max-width: 440px; font-size: 17px; }
.contact-fields { display: grid; gap: 18px; }
.contact-field { display: grid; gap: 8px; }
.contact-field label { font-size: 14px; font-weight: 600; }
.contact-field input, .contact-field textarea { width: 100%; padding: 13px 15px; border: 1px solid #bac3cf; border-radius: 0; background: var(--white); color: var(--ink); font: 16px/1.5 var(--sans); }
.contact-field input:focus-visible, .contact-field textarea:focus-visible { outline: none; border-bottom-color: var(--blue); box-shadow: inset 0 -2px 0 var(--blue); }
.contact-field textarea { resize: vertical; min-height: 130px; }
.contact-field input::placeholder, .contact-field textarea::placeholder { color: var(--muted); }
.contact-submit { justify-self: start; border: 1px solid #626b77; border-radius: 0; font-family: var(--sans); background: #626b77; color: var(--white); cursor: pointer; }
.contact-submit:hover { background: #4b535e; border-color: #4b535e; }
.contact-submit:active { background: #3e4650; border-color: #3e4650; }
.contact-panel { padding: 34px 36px 30px; border: 1px solid var(--line); border-top: 2px solid var(--blue); background: var(--section-soft); }
.contact-panel-title { font-size: 13px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink); }
.contact-points { list-style: none; margin: 18px 0 28px; padding: 0; }
.contact-points li { display: flex; gap: 18px; align-items: baseline; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 18px; color: var(--ink); }
.contact-points li:first-child { border-top: 1px solid var(--line); }
.contact-points span { font-size: 13px; color: var(--blue); font-variant-numeric: tabular-nums; }
.contact-start { width: 100%; background: var(--blue); border: 1px solid var(--blue); color: #fff; transition: background-color 180ms ease; }
.contact-start:hover { background: #1242bc; border-color: #1242bc; }
.contact-panel-note { margin-top: 14px; font-size: 14px; }
.contact-page .contact-layout { align-items: start; }
.contact-page { border-top: 0; padding: 96px 0 110px; }
.contact-page h1 { font-size: clamp(36px, 4vw, 56px); line-height: 1.12; letter-spacing: -.04em; margin: 24px 0; }
.contact-trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.contact-verification { min-height: 65px; }
.contact-note { font-size: 13px; }
.contact-note a, .legal a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
.legal { padding: 88px 0 110px; }
.legal-inner { max-width: 760px; }
.legal h1 { font-size: clamp(36px, 4vw, 54px); line-height: 1.12; letter-spacing: -.04em; margin: 0; }
.legal-updated { margin-top: 14px; font-size: 14px; }
.legal-short { margin-top: 32px; padding: 20px 24px; border-left: 3px solid var(--blue); background: var(--section-soft); color: var(--ink); }
.legal h2 { margin: 44px 0 12px; font-size: 23px; letter-spacing: -.025em; }
.legal p + p { margin-top: 12px; }
.legal ul { margin: 14px 0 0; padding-left: 22px; color: var(--muted); }
.legal ul + p { margin-top: 18px; }
.legal h2 + ul { margin-top: 0; }
.legal li + li { margin-top: 6px; }
.contact-dialog { width: min(480px, calc(100% - 32px)); max-height: 85vh; overflow: auto; padding: 30px; border: 1px solid var(--line); border-radius: 6px; background: var(--white); color: var(--ink); box-shadow: 0 24px 80px rgba(11,13,16,.22); }
.contact-dialog::backdrop { background: rgba(11,13,16,.45); }
.contact-dialog h2 { font-size: 24px; }
.contact-dialog p { margin: 18px 0 24px; font-size: 16px; }
.contact-dialog form { margin: 0; display: flex; justify-content: flex-end; }
.store-banner { --band: #1652f0; background: var(--band); color: #fff; padding: 48px 0; }
.store-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px 48px; flex-wrap: wrap; }
.store-banner h2 { font-size: clamp(26px, 2.4vw, 32px); letter-spacing: -.03em; }
.store-banner p { margin-top: 10px; max-width: 620px; font-size: 17px; color: rgba(255,255,255,.88); }
.store-link { border: 1px solid #fff; background: transparent; color: #fff; white-space: nowrap; transition: background-color 180ms ease, color 180ms ease; }
.store-link:hover { background: #0B0D10; border-color: #0B0D10; color: #fff; }
.store-link:active { background: #000; border-color: #000; }
.store-link:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }
.footer { background: var(--white); padding: 34px 0 22px; border-top: 1px solid var(--line); }
.footer-top { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px; align-items: start; }
.footer-label { margin-bottom: 10px; font-size: 12px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--ink); }
.footer-company p:not(.footer-label) { font-size: 14px; line-height: 1.7; color: var(--muted); }
.footer-company strong { color: var(--ink); font-weight: 600; }
.footer-brand-links p:not(.footer-label) { font-size: 14px; line-height: 1.7; }
.footer-note { color: var(--muted); }
.footer-links { font-size: 14px; }
.footer-links ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.footer-bottom { margin-top: 28px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 20px; font-size: 12px; color: var(--muted); }
.powered-by { display: inline-flex; align-items: center; gap: 2px; white-space: nowrap; }
.powered-by img { display: block; width: 52px; height: auto; }
/* D4U's own motion: engineering strokes and short entrances, no loops.
   Without JavaScript, all content stays visible in its final position. */
.navigation a { position: relative; transition: color 180ms ease; }
.navigation a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 3px; height: 2px; background: var(--blue); transform: scaleX(0); transform-origin: left; transition: transform 220ms ease; }
.navigation a:hover::after { transform: scaleX(1); }
.navigation a:focus-visible { text-decoration: none; }
.navigation a:focus-visible::after { transform: scaleX(1); }
.footer-links a { transition: color 180ms ease; }
/* Hover and keyboard focus: only on things that can be clicked. */
.brand img { transition: opacity 180ms ease; }
.brand:hover img { opacity: .78; }
.button { transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, box-shadow 180ms ease, transform 180ms ease; }
.button:hover, .button:focus-visible { box-shadow: 0 8px 20px rgba(18,35,65,.16); transform: translateY(-1px); }
.button:active { transform: translateY(0); box-shadow: none; }
.button span[aria-hidden="true"] { display: inline-block; transition: transform 180ms ease; }
.button:hover span[aria-hidden="true"], .button:focus-visible span[aria-hidden="true"] { transform: translateX(4px); }
.contact-note a, .legal a { transition: color 180ms ease, text-decoration-thickness 180ms ease; }
.contact-note a:hover, .legal a:hover, .contact-note a:focus-visible, .legal a:focus-visible { color: var(--ink); text-decoration-thickness: 2px; }
.navigation a[aria-current="page"], .footer-links a[aria-current="page"] { color: var(--blue); }
.navigation a[aria-current="page"]::after { transform: scaleX(1); }
.navigation a:focus-visible::after { transform: scaleX(1); }
.footer a:focus-visible { color: var(--blue); }
.store-link:focus-visible { background: #0B0D10; border-color: #0B0D10; color: #fff; }
.motion-target.is-revealed { animation: d4u-arrive 600ms cubic-bezier(.22, 1, .36, 1) var(--entry-delay, 0ms) both; }
.step { position: relative; }
.step::before { content: ""; position: absolute; height: 1px; top: -1px; left: 0; right: 0; background: var(--blue); transform: scaleX(0); transform-origin: left; }
.step.is-revealed::before { animation: d4u-step 650ms ease var(--entry-delay, 0ms) both; }
@keyframes d4u-arrive { from { opacity: .65; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes d4u-step { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (max-width: 1050px) {
  .wrap { width: 90%; } .hero { padding-top: 65px; } .hero-layout { gap: 5%; }
  h1 { font-size: 54px; } .core-diagram { padding-inline: 0; }
  .application-layer { margin-inline: 8px; padding: 22px 18px 0; } .core-layer { padding: 26px 22px; }
  .lead { font-size: 18px; } .navigation { gap: 16px; } .navigation .client-access { padding-inline: 16px; }
  .capability { padding: 28px 20px; } .steps { gap: 22px; }
  .capability h3 { font-size: 20px; } .closing .brand img { width: 140px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 132px; } .wrap { width: 88%; }
  .header-inner { min-height: 100px; flex-wrap: wrap; gap: 4px 20px; padding: 10px 0; }
  .brand img { width: 98px; }
  .header .brand img { width: 118px; }
  .navigation { width: 100%; justify-content: space-between; flex-wrap: wrap; order: 3; gap: 12px; font-size: 13px; }
  .navigation a { padding: 5px 0; }
  .navigation .client-access { padding: 10px 16px; }
  .hero { padding-top: 44px; } .hero-layout { grid-template-columns: 1fr; gap: 42px; }
  h1 { font-size: clamp(42px, 9vw, 62px); } .eyebrow { font-size: 11px; letter-spacing: .09em; }
  .lead { font-size: 17px; }
  .core-diagram { width: 100%; max-width: 500px; margin-inline: auto; }
  .hero-baseline { margin-top: 36px; align-items: start; flex-direction: column; padding: 24px 0; gap: 12px; font-size: 12px; }
  .baseline-values { gap: 8px 20px; }
  .intro { padding: 56px 0; } .intro-copy p { font-size: 16px; }
  .section { padding: 60px 0; } .section-head { grid-template-columns: 1fr; gap: 22px; margin-bottom: 30px; }
  .section-head p { font-size: 16px; } .capabilities { grid-template-columns: 1fr; }
  .capability, .capability:nth-child(3n + 1) { padding: 28px 0; border-right: 0; }
  .capability h3 { min-height: 0; max-width: none; font-size: 23px; }
  .capability-top { margin-bottom: 20px; } .technology-note { flex-direction: column; gap: 10px; }
  .approach { padding: 60px 0; } .steps { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
  .step h3 { font-size: 20px; } .step p { font-size: 14px; }
  .to-top { right: 16px; bottom: 16px; }
  .contact-panel { padding: 26px 22px 22px; } .contact-points li { font-size: 16px; }
  .contact { padding: 56px 0; } .contact-page { padding: 48px 0 72px; } .legal { padding: 48px 0 72px; } .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .closing { padding: 56px 0; } .closing .wrap { flex-direction: column; align-items: start; gap: 26px; }
  .closing .brand img { width: 130px; } .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-links { font-size: 13px; } .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
}
@media (max-width: 480px) {
  html:not(.has-menu) { scroll-padding-top: 190px; }
  html:not(.has-menu) .navigation { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 16px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .motion-target.is-revealed, .step.is-revealed::before { animation: none; }
  .to-top { transition: none; transform: none; }
  .navigation a, .navigation a::after, .footer-links a, .store-link, .button, .button span[aria-hidden="true"], .brand img { transition: none; }
  .button:hover, .button:focus-visible { transform: none; } .button:hover span[aria-hidden="true"], .button:focus-visible span[aria-hidden="true"] { transform: none; }
}

/* Dark mode: follows the system until the person chooses with the button (js/theme.js).
   The same rules appear twice: for the system setting and for the choice. */
.logo-dark, .brand img.logo-dark, .powered-by img.logo-dark { display: none; }
/* Back to top: a round button fixed at the bottom right; it shows once the page has scrolled. */
.to-top { position: fixed; right: 24px; bottom: 24px; z-index: 30; display: grid; place-items: center; width: 46px; height: 46px; border: 1px solid var(--line); border-radius: 50%; background: var(--white); color: var(--ink); box-shadow: 0 8px 24px rgba(18,35,65,.14); opacity: 0; visibility: hidden; transform: translateY(10px); transition: opacity 200ms ease, transform 200ms ease, visibility 200ms, border-color 180ms ease, color 180ms ease; }
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover, .to-top:focus-visible { border-color: var(--blue); color: var(--blue); }
.to-top svg { width: 20px; height: 20px; }
.theme-toggle { display: inline-grid; place-items: center; width: 38px; height: 38px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--ink); cursor: pointer; }
.theme-toggle:hover { border-color: var(--blue); color: var(--blue); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .i-sun { display: none; }
/* Phone and small tablet menu (js/menu.js): the hamburger shows up to 900px wide. */
.menu-toggle { display: none; place-items: center; align-content: center; gap: 4px; width: 42px; height: 42px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: transparent; color: var(--ink); cursor: pointer; }
.menu-toggle span { display: block; width: 18px; height: 2px; border-radius: 2px; background: currentColor; transition: transform 200ms ease, opacity 200ms ease; }
.menu-toggle:hover, .menu-toggle:focus-visible { border-color: var(--blue); color: var(--blue); }
.menu-open .menu-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
@media (max-width: 900px) {
  html.has-menu { scroll-padding-top: 84px; }
  .has-menu .header-inner { min-height: 68px; flex-wrap: nowrap; gap: 10px; padding: 0; }
  .has-menu .header .brand { padding-inline: 0; }
  .has-menu .header .brand img { width: 104px; }
  .has-menu .theme-toggle { margin-left: auto; width: 42px; height: 42px; }
  .has-menu .menu-toggle { display: inline-grid; }
  .has-menu .navigation { position: absolute; top: 100%; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; width: auto; margin: 0; padding: 4px 5% 18px; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 18px 30px rgba(18,35,65,.12); font-size: 17px; }
  .has-menu .menu-open .navigation { display: flex; }
  .has-menu .navigation a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .has-menu .navigation a:last-child { border-bottom: 0; }
  .has-menu .navigation a::after { content: none; }
}
@media (max-width: 760px) { .has-menu .navigation { padding-inline: 6%; } }
:root[data-theme="light"] { color-scheme: light; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { color-scheme: dark; --white: #0B0D10; --ink: #EEF1F5; --muted: #9AA5B4; --line: #262C35; --section-soft: #11151B; --blue: #5B87FF; --pale: rgba(91,135,255,.12); }
  :root:not([data-theme="light"])::selection { color: #0B0D10; }
  :root:not([data-theme="light"]) .skip { background: #EEF1F5; color: #0B0D10; }
  :root:not([data-theme="light"]) .header { background: rgba(11,13,16,.94); }
  :root:not([data-theme="light"]) .navigation .client-access, :root:not([data-theme="light"]) .contact-submit { background: #2A313B; border-color: #3A424E; color: #EEF1F5; }
  :root:not([data-theme="light"]) .navigation .client-access:hover, :root:not([data-theme="light"]) .contact-submit:hover { background: #353D48; border-color: #4A5361; color: #fff; }
  :root:not([data-theme="light"]) .hero { background: radial-gradient(ellipse at 50% 155%, rgba(60,90,150,.35) 0%, rgba(20,30,50,.20) 36%, transparent 72%), linear-gradient(180deg, #0D1219 0%, #101722 60%, #131C29 100%); }
  :root:not([data-theme="light"]) .hero::before { opacity: .38; }
  :root:not([data-theme="light"]) .hero .lead, :root:not([data-theme="light"]) .hero .diagram-label, :root:not([data-theme="light"]) .hero figcaption, :root:not([data-theme="light"]) .hero .hero-baseline { color: #A9B6C8; }
  :root:not([data-theme="light"]) .hero .eyebrow { color: #7FA0FF; }
  :root:not([data-theme="light"]) .hero .hero-baseline { border-color: #2E3A4B; }
  :root:not([data-theme="light"]) .application-layer { background: #151A21; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
  :root:not([data-theme="light"]) .core-layer { background: #05070A; border-color: #2B3646; box-shadow: 2px 4px 14px rgba(0,0,0,.5); }
  :root:not([data-theme="light"]) .core-stack::before, :root:not([data-theme="light"]) .core-stack::after { border-color: rgba(120,140,170,.35); background: linear-gradient(180deg, rgba(30,38,50,.35), rgba(30,38,50,.75)); }
  :root:not([data-theme="light"]) .closing { background: #05070A; color: #EEF1F5; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  :root:not([data-theme="light"]) .contact-field input, :root:not([data-theme="light"]) .contact-field textarea { border-color: #353D48; background: #11151B; }
  :root:not([data-theme="light"]) .contact-dialog { box-shadow: 0 24px 80px rgba(0,0,0,.6); }
  :root:not([data-theme="light"]) .contact-dialog::backdrop { background: rgba(0,0,0,.6); }
  :root:not([data-theme="light"]) .store-banner { --band: #1A3FB8; }
  :root:not([data-theme="light"]) .contact-start { background: #1A3FB8; border-color: #1A3FB8; }
  :root:not([data-theme="light"]) .contact-start:hover { background: #2450D6; border-color: #2450D6; }
  :root:not([data-theme="light"]) .logo-light { display: none; }
  :root:not([data-theme="light"]) .logo-dark { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .i-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .i-moon { display: none; }
}
:root[data-theme="dark"] { color-scheme: dark; --white: #0B0D10; --ink: #EEF1F5; --muted: #9AA5B4; --line: #262C35; --section-soft: #11151B; --blue: #5B87FF; --pale: rgba(91,135,255,.12); }
:root[data-theme="dark"]::selection { color: #0B0D10; }
:root[data-theme="dark"] .skip { background: #EEF1F5; color: #0B0D10; }
:root[data-theme="dark"] .header { background: rgba(11,13,16,.94); }
:root[data-theme="dark"] .navigation .client-access, :root[data-theme="dark"] .contact-submit { background: #2A313B; border-color: #3A424E; color: #EEF1F5; }
:root[data-theme="dark"] .navigation .client-access:hover, :root[data-theme="dark"] .contact-submit:hover { background: #353D48; border-color: #4A5361; color: #fff; }
:root[data-theme="dark"] .hero { background: radial-gradient(ellipse at 50% 155%, rgba(60,90,150,.35) 0%, rgba(20,30,50,.20) 36%, transparent 72%), linear-gradient(180deg, #0D1219 0%, #101722 60%, #131C29 100%); }
:root[data-theme="dark"] .hero::before { opacity: .38; }
:root[data-theme="dark"] .hero .lead, :root[data-theme="dark"] .hero .diagram-label, :root[data-theme="dark"] .hero figcaption, :root[data-theme="dark"] .hero .hero-baseline { color: #A9B6C8; }
:root[data-theme="dark"] .hero .eyebrow { color: #7FA0FF; }
:root[data-theme="dark"] .hero .hero-baseline { border-color: #2E3A4B; }
:root[data-theme="dark"] .application-layer { background: #151A21; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
:root[data-theme="dark"] .core-layer { background: #05070A; border-color: #2B3646; box-shadow: 2px 4px 14px rgba(0,0,0,.5); }
:root[data-theme="dark"] .core-stack::before, :root[data-theme="dark"] .core-stack::after { border-color: rgba(120,140,170,.35); background: linear-gradient(180deg, rgba(30,38,50,.35), rgba(30,38,50,.75)); }
:root[data-theme="dark"] .closing { background: #05070A; color: #EEF1F5; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
:root[data-theme="dark"] .contact-field input, :root[data-theme="dark"] .contact-field textarea { border-color: #353D48; background: #11151B; }
:root[data-theme="dark"] .contact-dialog { box-shadow: 0 24px 80px rgba(0,0,0,.6); }
:root[data-theme="dark"] .contact-dialog::backdrop { background: rgba(0,0,0,.6); }
:root[data-theme="dark"] .store-banner { --band: #1A3FB8; }
:root[data-theme="dark"] .contact-start { background: #1A3FB8; border-color: #1A3FB8; }
:root[data-theme="dark"] .contact-start:hover { background: #2450D6; border-color: #2450D6; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: block; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }

/* Error page (404.html and es/404.html): the hero background with one message and one way back. */
.notfound .notfound-actions { margin-top: 36px; }