:root {
  color-scheme: dark;

  --background: #080d18;
  --background-elevated: #0d1423;
  --surface: #111a2c;
  --surface-hover: #162137;
  --surface-muted: #0b1220;

  --text: #f4f7fb;
  --text-muted: #9ba8bc;
  --text-subtle: #68758a;

  --border: rgba(148, 163, 184, 0.17);
  --border-strong: rgba(148, 163, 184, 0.3);

  --accent: #4fd1c5;
  --accent-bright: #6ee7dc;
  --accent-dark: #0c6e68;
  --accent-soft: rgba(79, 209, 197, 0.12);

  --blue: #60a5fa;
  --purple: #a78bfa;
  --green: #4ade80;

  --header-background: rgba(8, 13, 24, 0.82);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);

  --container: 1180px;
  --header-height: 74px;
  --radius-small: 8px;
  --radius-medium: 14px;
  --radius-large: 22px;

  --transition: 180ms ease;
}

html[data-theme="light"] {
  color-scheme: light;

  --background: #f8fafc;
  --background-elevated: #ffffff;
  --surface: #ffffff;
  --surface-hover: #f1f5f9;
  --surface-muted: #eef3f8;

  --text: #101827;
  --text-muted: #526078;
  --text-subtle: #748198;

  --border: rgba(15, 23, 42, 0.12);
  --border-strong: rgba(15, 23, 42, 0.22);

  --accent: #087f78;
  --accent-bright: #0f9b91;
  --accent-dark: #075e59;
  --accent-soft: rgba(8, 127, 120, 0.1);

  --header-background: rgba(248, 250, 252, 0.87);
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.09);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

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

::selection {
  background: var(--accent);
  color: #061211;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: var(--radius-small);
  background: var(--accent);
  color: #061211;
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform var(--transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - 48px), var(--container));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: 120px 0;
}

.section-muted {
  background: var(--surface-muted);
  border-block: 1px solid var(--border);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  background: transparent;
  transition:
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.site-header.scrolled,
.site-header.menu-visible {
  border-bottom-color: var(--border);
  background: var(--header-background);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.94rem;
  font-weight: 750;
  letter-spacing: -0.01em;
}

.brand-mark {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-weight: 800;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.desktop-nav a,
.mobile-nav a {
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color var(--transition);
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible,
.mobile-nav a:hover,
.mobile-nav a:focus-visible {
  color: var(--accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button {
  display: grid;
  width: 42px;
  height: 42px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  cursor: pointer;
  transition:
    border-color var(--transition),
    background var(--transition),
    transform var(--transition);
}

.icon-button:hover {
  border-color: var(--border-strong);
  background: var(--surface-hover);
  transform: translateY(-1px);
}

.theme-toggle svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

html[data-theme="light"] .sun-icon,
html:not([data-theme="light"]) .moon-icon {
  display: none;
}

.menu-toggle {
  display: none;
  align-content: center;
  gap: 4px;
}

.menu-toggle span {
  width: 17px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition:
    transform var(--transition),
    opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5.5px) rotate(45deg);
}

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

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5.5px) rotate(-45deg);
}

.mobile-nav {
  display: none;
}

.hero {
  display: grid;
  min-height: 100svh;
  padding-top: calc(var(--header-height) + 70px);
  overflow: hidden;
  align-items: center;
}

.hero-grid,
.contact-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.6), transparent 90%);
  opacity: 0.35;
}

.hero::before {
  position: absolute;
  top: 8%;
  left: 55%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  filter: blur(100px);
  content: "";
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  gap: 80px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 26px;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.status-dot,
.online-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 5px var(--accent-soft);
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(3.1rem, 6.5vw, 6.4rem);
  font-weight: 780;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.gradient-text {
  display: block;
  background: linear-gradient(110deg, var(--accent), var(--blue));
  background-clip: text;
  color: transparent;
}

.hero-description {
  max-width: 680px;
  margin: 32px 0 0;
  color: var(--text-muted);
  font-size: clamp(1.05rem, 1.5vw, 1.23rem);
}

.hero-description strong {
  color: var(--text);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  min-height: 50px;
  padding: 0 22px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: var(--radius-small);
  font-size: 0.91rem;
  font-weight: 750;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #061211;
  box-shadow: 0 12px 35px color-mix(in srgb, var(--accent) 20%, transparent);
}

.button-primary:hover {
  background: var(--accent-bright);
  box-shadow: 0 16px 40px color-mix(in srgb, var(--accent) 27%, transparent);
}

.button-secondary {
  border-color: var(--border-strong);
  background: var(--surface);
  color: var(--text);
}

.button-secondary:hover {
  border-color: var(--accent);
}

.button-large {
  min-height: 58px;
  padding-inline: 28px;
  font-size: 1rem;
}

.hero-facts {
  display: flex;
  margin: 54px 0 0;
  padding: 0;
  list-style: none;
}

.hero-facts li {
  display: flex;
  padding: 0 25px;
  flex-direction: column;
  border-left: 1px solid var(--border-strong);
}

.hero-facts li:first-child {
  padding-left: 0;
  border-left: 0;
}

.hero-facts strong {
  font-size: 0.88rem;
}

.hero-facts span {
  color: var(--text-subtle);
  font-size: 0.74rem;
}

.architecture-card {
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-large);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
}

.architecture-card-header,
.architecture-footer {
  display: flex;
  padding: 15px 18px;
  align-items: center;
  justify-content: space-between;
  color: var(--text-subtle);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.7rem;
}

.architecture-card-header {
  border-bottom: 1px solid var(--border);
}

.architecture-footer {
  border-top: 1px solid var(--border);
}

.architecture-footer span:first-child {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.online-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
}

.window-controls {
  display: flex;
  gap: 5px;
}

.window-controls i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--border-strong);
}

.architecture-diagram {
  display: flex;
  min-height: 450px;
  padding: 36px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.diagram-node {
  position: relative;
  width: 74%;
  padding: 15px 17px;
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  background: var(--background-elevated);
  box-shadow: 0 9px 25px rgba(0, 0, 0, 0.12);
}

.diagram-node span {
  position: absolute;
  top: 8px;
  right: 10px;
  color: var(--text-subtle);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.58rem;
}

.diagram-node strong,
.diagram-node small {
  display: block;
}

.diagram-node strong {
  font-size: 0.77rem;
}

.diagram-node small {
  margin-top: 2px;
  color: var(--text-subtle);
  font-size: 0.64rem;
}

.node-gateway {
  border-color: color-mix(in srgb, var(--accent) 60%, var(--border));
}

.service-row {
  display: grid;
  width: 90%;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.service-row .diagram-node {
  width: auto;
}

.diagram-connector {
  width: 1px;
  height: 27px;
  background: linear-gradient(var(--accent), var(--border-strong));
}

.connector-two,
.connector-three {
  height: 24px;
}

.scroll-indicator {
  position: absolute;
  bottom: 26px;
  left: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-subtle);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.65rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  transform: translateX(-50%);
}

.scroll-indicator i {
  position: relative;
  width: 34px;
  height: 1px;
  background: var(--border-strong);
}

.scroll-indicator i::after {
  position: absolute;
  top: -2px;
  right: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  content: "";
}

.two-column {
  display: grid;
  grid-template-columns: minmax(250px, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(60px, 9vw, 130px);
}

.section-heading h2 {
  max-width: 720px;
  margin: 10px 0 0;
  font-size: clamp(2.25rem, 4vw, 4.1rem);
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.section-heading > p:not(.section-number) {
  max-width: 550px;
  margin-top: 25px;
  color: var(--text-muted);
}

.section-number,
.project-type,
.timeline-date {
  margin: 0;
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-heading-horizontal {
  display: flex;
  margin-bottom: 60px;
  align-items: end;
  justify-content: space-between;
  gap: 50px;
}

.section-heading-horizontal > p {
  max-width: 430px;
  margin: 0 0 7px;
  color: var(--text-muted);
}

.prose > p {
  max-width: 720px;
  color: var(--text-muted);
}

.prose .lead {
  margin-top: 0;
  color: var(--text);
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.48;
}

.principles {
  display: grid;
  margin-top: 50px;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.principles article {
  padding-top: 19px;
  border-top: 1px solid var(--border-strong);
}

.principles span,
.card-number {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.67rem;
}

.principles h3 {
  margin: 15px 0 7px;
  font-size: 0.95rem;
}

.principles p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.83rem;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.expertise-card {
  position: relative;
  padding: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-medium);
  background: var(--surface);
  transition:
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.expertise-card:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.card-number {
  position: absolute;
  top: 23px;
  right: 25px;
  color: var(--text-subtle);
}

.card-icon {
  display: grid;
  width: 48px;
  height: 48px;
  margin-bottom: 30px;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--accent) 35%, var(--border));
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
}

.card-icon svg {
  width: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.6;
}

.expertise-card h3 {
  margin: 0;
  font-size: 1.22rem;
}

.expertise-card > p {
  min-height: 78px;
  margin: 12px 0 24px;
  color: var(--text-muted);
  font-size: 0.91rem;
}

.tag-list {
  display: flex;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.tag-list li {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-subtle);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.66rem;
}

.project-list {
  display: grid;
  gap: 28px;
}

.project-card {
  display: grid;
  min-height: 420px;
  grid-template-columns: 1fr 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-large);
  background: var(--surface);
  overflow: hidden;
}

.project-card-reverse .project-visual {
  order: 2;
}

.project-visual {
  position: relative;
  display: grid;
  min-height: 380px;
  padding: 50px;
  place-items: center;
  overflow: hidden;
}

.visual-blue {
  background:
    radial-gradient(circle at 25% 25%, rgba(96, 165, 250, 0.22), transparent 40%),
    #0b1424;
}

.visual-purple {
  background:
    radial-gradient(circle at 75% 25%, rgba(167, 139, 250, 0.25), transparent 40%),
    #110e20;
}

.visual-green {
  background:
    radial-gradient(circle at 50% 75%, rgba(74, 222, 128, 0.19), transparent 43%),
    #091812;
}

.visual-window {
  width: min(100%, 380px);
  padding: 17px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: rgba(3, 8, 18, 0.65);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.32);
}

.visual-window > span {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 3px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.23);
}

.visual-chart {
  display: flex;
  height: 185px;
  margin-top: 25px;
  padding: 20px;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 100% 25%;
}

.visual-chart i {
  width: 14%;
  height: var(--height);
  border-radius: 5px 5px 2px 2px;
  background: linear-gradient(var(--blue), rgba(96, 165, 250, 0.25));
}

.event-flow,
.pipeline {
  display: flex;
  align-items: center;
}

.event-flow span,
.pipeline span {
  display: grid;
  width: 90px;
  height: 90px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  background: rgba(4, 5, 15, 0.55);
  color: #fff;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.7rem;
}

.event-flow i {
  width: 55px;
  height: 1px;
  background: linear-gradient(90deg, var(--purple), rgba(167, 139, 250, 0.2));
}

.pipeline {
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.pipeline span {
  width: 88px;
  height: 58px;
  border-radius: 8px;
}

.pipeline i {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border-radius: 50%;
  background: var(--green);
  color: #06210f;
  font-size: 0.7rem;
  font-style: normal;
  font-weight: 800;
}

.project-content {
  display: flex;
  padding: clamp(38px, 5vw, 70px);
  flex-direction: column;
  justify-content: center;
}

.project-content h3 {
  margin: 13px 0 18px;
  font-size: clamp(1.7rem, 2.7vw, 2.65rem);
  letter-spacing: -0.035em;
  line-height: 1.12;
}

.project-content > p:not(.project-type) {
  margin: 0;
  color: var(--text-muted);
}

.project-results {
  display: grid;
  margin: 35px 0 0;
  padding-top: 27px;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  border-top: 1px solid var(--border);
}

.project-results dt {
  color: var(--text-subtle);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.project-results dd {
  margin: 5px 0 0;
  font-size: 0.75rem;
  font-weight: 600;
}

.timeline {
  position: relative;
}

.timeline::before {
  position: absolute;
  top: 8px;
  bottom: 20px;
  left: 4px;
  width: 1px;
  background: var(--border-strong);
  content: "";
}

.timeline-item {
  position: relative;
  padding: 0 0 55px 40px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-marker {
  position: absolute;
  top: 8px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--surface-muted);
  box-shadow: 0 0 0 6px var(--accent-soft);
}

.timeline-item h3 {
  margin: 8px 0 0;
  font-size: 1.38rem;
}

.timeline-company {
  margin: 0;
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
}

.timeline-item > p:last-child {
  max-width: 650px;
  margin: 12px 0 0;
  color: var(--text-muted);
}

.toolkit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--border);
}

.toolkit-grid article {
  padding: 32px;
  border-left: 1px solid var(--border);
}

.toolkit-grid article:first-child {
  border-left: 0;
}

.toolkit-grid h3 {
  margin: 0 0 20px;
  font-size: 0.95rem;
}

.toolkit-grid ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.toolkit-grid li {
  padding: 6px 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.toolkit-grid li::before {
  margin-right: 9px;
  color: var(--accent);
  content: "—";
}

.contact-section {
  overflow: hidden;
  border-top: 1px solid var(--border);
  text-align: center;
}

.contact-grid {
  mask-image: radial-gradient(circle at center, black, transparent 75%);
}

.contact-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-content h2 {
  max-width: 850px;
  margin: 16px auto 0;
  font-size: clamp(3rem, 7vw, 6.3rem);
  letter-spacing: -0.06em;
  line-height: 0.99;
}

.contact-content > p:not(.section-number) {
  max-width: 620px;
  margin: 28px auto 38px;
  color: var(--text-muted);
  font-size: 1.05rem;
}

.social-links {
  display: flex;
  margin-top: 42px;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
}

.social-links a {
  color: var(--text-muted);
  font-size: 0.84rem;
  font-weight: 650;
  transition: color var(--transition);
}

.social-links a:hover {
  color: var(--accent);
}

.site-footer {
  padding: 27px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;
  color: var(--text-subtle);
  font-size: 0.75rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  transition: color var(--transition);
}

.footer-inner a:hover {
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

@media (max-width: 1000px) {
  .hero {
    padding-bottom: 100px;
  }

  .hero-content {
    grid-template-columns: 1fr;
    gap: 70px;
  }

  .hero-copy {
    max-width: 800px;
  }

  .architecture-card {
    width: min(100%, 570px);
    margin-inline: auto;
    transform: none;
  }

  .scroll-indicator {
    display: none;
  }

  .two-column {
    grid-template-columns: 1fr;
  }

  .section-heading-horizontal {
    align-items: start;
  }

  .project-card {
    grid-template-columns: 1fr;
  }

  .project-card-reverse .project-visual {
    order: 0;
  }

  .project-visual {
    min-height: 350px;
  }

  .toolkit-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .toolkit-grid article:nth-child(3) {
    border-left: 0;
  }

  .toolkit-grid article:nth-child(n + 3) {
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 760px) {
  :root {
    --header-height: 66px;
  }

  .container {
    width: min(calc(100% - 32px), var(--container));
  }

  .section {
    padding: 85px 0;
  }

  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .mobile-nav {
    position: fixed;
    inset: var(--header-height) 0 auto;
    display: flex;
    max-height: 0;
    padding: 0 24px;
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid transparent;
    background: var(--header-background);
    backdrop-filter: blur(18px);
    overflow: hidden;
    visibility: hidden;
    transition:
      max-height 280ms ease,
      padding 280ms ease,
      visibility 280ms;
  }

  .mobile-nav.open {
    max-height: 400px;
    padding-block: 15px 25px;
    border-bottom-color: var(--border);
    visibility: visible;
  }

  .mobile-nav a {
    padding: 13px 0;
    border-bottom: 1px solid var(--border);
  }

  .mobile-nav a:last-child {
    border-bottom: 0;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--header-height) + 75px);
  }

  .hero h1 {
    font-size: clamp(3rem, 14vw, 4.5rem);
  }

  .hero-facts {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .hero-facts li,
  .hero-facts li:first-child {
    padding: 0 0 0 16px;
    border-left: 1px solid var(--border-strong);
  }

  .architecture-diagram {
    min-height: 410px;
    padding: 25px 20px;
  }

  .diagram-node {
    width: 88%;
  }

  .service-row {
    width: 100%;
  }

  .section-heading-horizontal {
    margin-bottom: 42px;
    flex-direction: column;
    gap: 20px;
  }

  .section-heading-horizontal > p {
    margin: 0;
  }

  .principles,
  .expertise-grid {
    grid-template-columns: 1fr;
  }

  .expertise-card > p {
    min-height: auto;
  }

  .project-visual {
    min-height: 290px;
    padding: 30px 20px;
  }

  .event-flow span {
    width: 70px;
    height: 70px;
  }

  .event-flow i {
    width: 28px;
  }

  .project-results {
    grid-template-columns: 1fr;
  }

  .toolkit-grid {
    grid-template-columns: 1fr;
  }

  .toolkit-grid article,
  .toolkit-grid article:nth-child(3) {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .toolkit-grid article:first-child {
    border-top: 0;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 430px) {
  .brand span:last-child {
    display: none;
  }

  .hero-actions .button {
    width: 100%;
  }

  .architecture-card {
    border-radius: var(--radius-medium);
  }

  .service-row {
    grid-template-columns: 1fr;
  }

  .connector-three {
    display: none;
  }

  .node-data {
    margin-top: 24px;
  }

  .event-flow span {
    width: 62px;
    height: 62px;
    font-size: 0.6rem;
  }

  .event-flow i {
    width: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}