:root {
  --blue: #0c5fff;
  --blue-700: #0848c9;
  --yellow: #ffbb0c;
  --ink: #111827;
  --ink-2: #263241;
  --muted: #627084;
  --line: #dfe6f0;
  --line-strong: #cbd5e1;
  --surface: #f6f8fc;
  --surface-2: #eef3fb;
  --white: #ffffff;
  --green: #12805c;
  --red: #c74444;
  --shadow-soft: 0 18px 46px rgba(17, 24, 39, 0.09);
  --shadow-deep: 0 26px 70px rgba(17, 24, 39, 0.14);
  --radius: 8px;
  --container-max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

.container {
  width: 100%;
  max-width: calc(var(--container-max) + 32px);
  margin-inline: auto;
  padding-inline: 16px;
}

.section {
  padding: 104px 0;
}

.section-heading {
  display: grid;
  gap: 12px;
  max-width: 760px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  max-width: 790px;
  color: var(--ink);
  font-size: clamp(2.55rem, 5vw, 4.55rem);
  line-height: 1.02;
  font-weight: 800;
  text-wrap: balance;
}

h2 {
  color: var(--ink);
  font-size: clamp(1.9rem, 3.4vw, 3.1rem);
  line-height: 1.08;
  font-weight: 800;
  text-wrap: balance;
}

h3 {
  color: var(--ink);
  font-size: 1.03rem;
  line-height: 1.25;
  font-weight: 760;
}

p {
  color: var(--muted);
}

.eyebrow {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.78rem 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 760;
  line-height: 1.1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

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

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

.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(12, 95, 255, 0.22);
  outline-offset: 3px;
}

.btn-primary {
  color: var(--white);
  background: var(--blue);
  box-shadow: 0 16px 30px rgba(12, 95, 255, 0.24);
}

.btn-primary:hover {
  background: var(--blue-700);
  box-shadow: 0 18px 36px rgba(12, 95, 255, 0.3);
}

.btn-secondary {
  color: var(--ink);
  background: var(--white);
  border-color: var(--line-strong);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.06);
}

.btn-secondary:hover {
  color: var(--blue);
  border-color: rgba(12, 95, 255, 0.42);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid rgba(223, 230, 240, 0.82);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
}

.site-header.is-scrolled {
  box-shadow: 0 14px 36px rgba(17, 24, 39, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  min-height: 74px;
  gap: 22px;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--ink);
  font-size: 1.06rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-lockup img {
  width: 38px;
  height: 38px;
  object-fit: contain;
}

.nav-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex: 1 1 auto;
}

.nav-panel a:not(.btn),
.footer-links a {
  color: var(--ink-2);
  font-size: 0.92rem;
  font-weight: 670;
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-panel a:not(.btn):hover,
.footer-links a:hover {
  color: var(--blue);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--white);
  box-shadow: 0 8px 20px rgba(17, 24, 39, 0.04);
}

.lang-btn {
  min-width: 38px;
  height: 30px;
  border: 0;
  border-radius: 999px;
  color: var(--muted);
  background: transparent;
  font-size: 0.78rem;
  font-weight: 800;
  cursor: pointer;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.lang-btn.is-active {
  color: var(--white);
  background: var(--ink);
}

.nav-mobile-cta,
.menu-toggle {
  display: none;
}

.menu-toggle {
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
}

.menu-line {
  width: 18px;
  height: 2px;
  background: var(--ink);
  border-radius: 999px;
}

.hero-section {
  position: relative;
  overflow: hidden;
  padding: 64px 0 56px;
  background:
    linear-gradient(rgba(12, 95, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 95, 255, 0.055) 1px, transparent 1px),
    linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  background-size: 42px 42px, 42px 42px, auto;
}

.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.72) 48%, rgba(255, 255, 255, 0.94) 100%),
    radial-gradient(circle at 82% 8%, rgba(255, 187, 12, 0.16), transparent 26%);
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(440px, 1.05fr);
  align-items: center;
  gap: 48px;
}

.hero-copy {
  display: grid;
  gap: 20px;
  min-width: 0;
}

.hero-subtitle {
  max-width: 720px;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.6vw, 1.16rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-signals {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}

.hero-signals span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.42rem 0.68rem;
  border: 1px solid rgba(12, 95, 255, 0.18);
  border-radius: 999px;
  color: var(--blue);
  background: rgba(255, 255, 255, 0.78);
  font-size: 0.82rem;
  font-weight: 800;
}

.hero-demo {
  justify-self: end;
  width: min(100%, 620px);
  min-width: 0;
}

.demo-shell {
  border: 1px solid rgba(203, 213, 225, 0.9);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.9);
  box-shadow: var(--shadow-deep);
}

.demo-shell-compact {
  padding: 16px;
}

.demo-shell-large {
  padding: 18px;
}

.demo-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 46px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.demo-topbar > div {
  display: grid;
  gap: 2px;
}

.demo-kicker {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 780;
  text-transform: uppercase;
}

.demo-topbar strong {
  color: var(--ink);
  line-height: 1.2;
}

.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  min-height: 30px;
  padding: 0.26rem 0.58rem;
  border: 1px solid rgba(18, 128, 92, 0.2);
  border-radius: 999px;
  color: var(--green);
  background: rgba(18, 128, 92, 0.08);
  font-size: 0.76rem;
  font-weight: 800;
}

.live-indicator::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px rgba(18, 128, 92, 0.1);
}

.building-card {
  position: relative;
  min-height: 380px;
  margin-top: 16px;
  border: 1px solid rgba(223, 230, 240, 0.98);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(246, 248, 252, 0.84)),
    var(--surface);
}

.building-card-large {
  min-height: 470px;
  margin-top: 0;
}

.ambient-grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(17, 24, 39, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(17, 24, 39, 0.045) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.72), transparent 88%);
}

.building-svg {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: 100%;
  min-height: 380px;
}

.building-card-large .building-svg {
  min-height: 470px;
}

.building-shadow ellipse {
  fill: rgba(17, 24, 39, 0.12);
}

.roof-plane {
  fill: #f7fbff;
  stroke: rgba(12, 95, 255, 0.18);
  stroke-width: 2;
}

.left-plane,
.front-plane {
  fill: url("#glassHero");
  stroke: rgba(12, 95, 255, 0.22);
  stroke-width: 2;
}

.demo-shell-large .left-plane,
.demo-shell-large .front-plane {
  fill: url("#glassMain");
}

.right-plane {
  fill: url("#sideHero");
  stroke: rgba(12, 95, 255, 0.22);
  stroke-width: 2;
}

.demo-shell-large .right-plane {
  fill: url("#sideMain");
}

.room {
  fill: rgba(255, 255, 255, 0.56);
  stroke: rgba(12, 95, 255, 0.2);
  stroke-width: 1.5;
  transition: fill 0.35s ease, stroke 0.35s ease;
}

.room-light circle {
  fill: var(--yellow);
  opacity: 0;
  filter: blur(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.window-lines path {
  stroke: rgba(12, 95, 255, 0.42);
  stroke-width: 5;
  stroke-linecap: round;
  transition: stroke 0.35s ease, opacity 0.35s ease;
}

.blind-set {
  transform-box: fill-box;
  transform-origin: center;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.blind-set path {
  stroke: rgba(17, 24, 39, 0.42);
  stroke-width: 7;
  stroke-linecap: round;
}

.hvac-flow {
  opacity: 0;
  transition: opacity 0.35s ease;
}

.hvac-flow path {
  fill: none;
  stroke: rgba(12, 95, 255, 0.7);
  stroke-width: 7;
  stroke-linecap: round;
  stroke-dasharray: 18 18;
  animation: airflow 1.6s linear infinite;
}

.security-layer {
  transition: opacity 0.35s ease, transform 0.35s ease;
  transform-box: fill-box;
  transform-origin: center;
}

.security-layer circle {
  fill: rgba(18, 128, 92, 0.1);
  stroke: rgba(18, 128, 92, 0.45);
  stroke-width: 3;
}

.security-layer path {
  fill: rgba(18, 128, 92, 0.92);
}

.presence-dots circle {
  fill: var(--green);
  opacity: 0.22;
  transition: opacity 0.35s ease, fill 0.35s ease, transform 0.35s ease;
  transform-box: fill-box;
  transform-origin: center;
}

[data-smart-demo].is-lights-on .room {
  fill: rgba(255, 248, 226, 0.8);
  stroke: rgba(255, 187, 12, 0.42);
}

[data-smart-demo].is-lights-on .room-light circle {
  opacity: 0.42;
}

[data-smart-demo].is-lights-on .window-lines path {
  stroke: rgba(255, 187, 12, 0.8);
}

[data-smart-demo].is-climate-on .hvac-flow {
  opacity: 1;
}

[data-smart-demo].is-blinds-open .blind-set {
  opacity: 0.22;
  transform: translateY(-18px);
}

[data-smart-demo]:not(.is-blinds-open) .blind-set {
  opacity: 0.92;
  transform: translateY(16px);
}

[data-smart-demo].is-security-on .security-layer {
  opacity: 1;
  transform: scale(1);
}

[data-smart-demo]:not(.is-security-on) .security-layer {
  opacity: 0.34;
  transform: scale(0.92);
}

[data-smart-demo].is-security-on .presence-dots circle {
  opacity: 0.95;
  animation: presencePulse 1.7s ease-in-out infinite;
}

[data-smart-demo]:not(.is-security-on) .presence-dots circle {
  fill: var(--muted);
}

.hero-control-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.control-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--muted);
  background: var(--white);
  font-size: 0.86rem;
  font-weight: 780;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.control-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(12, 95, 255, 0.3);
  box-shadow: 0 12px 28px rgba(17, 24, 39, 0.08);
}

.control-chip[aria-pressed="true"] {
  color: var(--blue);
  border-color: rgba(12, 95, 255, 0.28);
  background: rgba(12, 95, 255, 0.06);
}

.chip-icon,
.switch-icon,
.service-icon,
.card-icon {
  position: relative;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: var(--radius);
  background: rgba(12, 95, 255, 0.08);
  color: var(--blue);
}

.chip-icon::before,
.switch-icon::before,
.service-icon::before,
.card-icon::before,
.chip-icon::after,
.switch-icon::after,
.service-icon::after,
.card-icon::after {
  content: "";
  position: absolute;
}

.chip-icon-light::before,
.switch-icon-light::before,
.icon-optimize::before,
.service-icon-energy::before {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 4px rgba(255, 187, 12, 0.28);
}

.chip-icon-climate::before,
.switch-icon-climate::before {
  width: 15px;
  height: 15px;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.chip-icon-climate::after,
.switch-icon-climate::after {
  width: 4px;
  height: 12px;
  border-radius: 999px;
  background: currentColor;
  transform: rotate(45deg);
}

.chip-icon-blinds::before,
.switch-icon-blinds::before {
  width: 16px;
  height: 12px;
  border-top: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

.chip-icon-blinds::after,
.switch-icon-blinds::after {
  width: 16px;
  height: 2px;
  background: currentColor;
}

.chip-icon-security::before,
.switch-icon-security::before {
  width: 14px;
  height: 16px;
  border: 2px solid currentColor;
  border-radius: 8px 8px 10px 10px;
  transform: perspective(20px) rotateX(12deg);
}

.actions-section,
.method-section,
.contact-section {
  background: var(--surface);
}

.action-grid,
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 34px;
}

.premium-card,
.service-card {
  display: grid;
  align-content: start;
  gap: 14px;
  min-height: 100%;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.05);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.premium-card:hover,
.service-card:hover,
.credibility-grid article:hover {
  transform: translateY(-3px);
  border-color: rgba(12, 95, 255, 0.24);
  box-shadow: 0 20px 44px rgba(17, 24, 39, 0.09);
}

.premium-card p,
.service-card p {
  color: var(--ink-2);
  font-size: 0.96rem;
}

.card-icon,
.service-icon {
  width: 38px;
  height: 38px;
}

.icon-control::before,
.service-icon-bms::before {
  width: 18px;
  height: 12px;
  border: 2px solid currentColor;
  border-radius: 4px;
}

.icon-control::after,
.service-icon-bms::after {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--yellow);
  right: 8px;
  bottom: 9px;
}

.icon-supervise::before,
.service-icon-screen::before {
  width: 18px;
  height: 14px;
  border: 2px solid currentColor;
  border-radius: 4px;
}

.icon-supervise::after,
.service-icon-screen::after {
  width: 12px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  bottom: 9px;
}

.service-icon-electric::before {
  width: 10px;
  height: 18px;
  background: currentColor;
  clip-path: polygon(48% 0, 100% 0, 66% 42%, 100% 42%, 34% 100%, 48% 54%, 10% 54%);
}

.service-icon-automation::before {
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 50%;
}

.service-icon-automation::after {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.service-icon-support::before {
  width: 18px;
  height: 18px;
  border: 2px solid currentColor;
  border-radius: 5px;
  transform: rotate(45deg);
}

.service-card-highlight {
  border-color: rgba(12, 95, 255, 0.26);
  background:
    linear-gradient(135deg, rgba(12, 95, 255, 0.08), transparent 42%),
    var(--white);
}

.demo-section {
  background:
    linear-gradient(rgba(12, 95, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(12, 95, 255, 0.04) 1px, transparent 1px),
    #ffffff;
  background-size: 42px 42px;
}

.demo-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.42fr) minmax(0, 0.58fr);
  gap: 40px;
  align-items: start;
}

.demo-copy {
  position: sticky;
  top: 104px;
  display: grid;
  gap: 16px;
}

.demo-copy p:not(.eyebrow) {
  max-width: 520px;
  color: var(--ink-2);
  font-size: 1.04rem;
}

.demo-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

.demo-metrics div,
.floating-status {
  border: 1px solid rgba(223, 230, 240, 0.96);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 14px 34px rgba(17, 24, 39, 0.08);
}

.demo-metrics div {
  display: grid;
  gap: 6px;
  padding: 14px;
}

.demo-metrics span,
.floating-status span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
}

.demo-metrics strong,
.floating-status strong {
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.15;
}

.demo-workspace {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 14px;
  padding-top: 16px;
}

.control-panel {
  display: grid;
  gap: 10px;
  align-content: start;
}

.smart-switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  width: 100%;
  min-height: 76px;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  cursor: pointer;
  text-align: left;
  box-shadow: 0 10px 24px rgba(17, 24, 39, 0.05);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.smart-switch:hover {
  transform: translateY(-1px);
  border-color: rgba(12, 95, 255, 0.28);
  box-shadow: 0 15px 30px rgba(17, 24, 39, 0.08);
}

.smart-switch[aria-pressed="true"] {
  border-color: rgba(12, 95, 255, 0.28);
  background: rgba(12, 95, 255, 0.045);
}

.switch-copy {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.switch-copy > span:last-child {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.switch-copy strong,
.switch-copy small {
  overflow-wrap: anywhere;
}

.switch-copy strong {
  color: var(--ink);
  font-size: 0.92rem;
  line-height: 1.2;
}

.switch-copy small {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 720;
}

.switch-track {
  position: relative;
  flex: 0 0 auto;
  width: 44px;
  height: 26px;
  border-radius: 999px;
  background: #d7deea;
  transition: background-color 0.2s ease;
}

.switch-track span {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--white);
  box-shadow: 0 4px 10px rgba(17, 24, 39, 0.18);
  transition: transform 0.2s ease;
}

.smart-switch[aria-pressed="true"] .switch-track {
  background: var(--blue);
}

.smart-switch[aria-pressed="true"] .switch-track span {
  transform: translateX(18px);
}

.floating-status {
  position: absolute;
  z-index: 3;
  display: grid;
  gap: 5px;
  min-width: 112px;
  padding: 12px;
  backdrop-filter: blur(10px);
}

.floating-status-energy {
  left: 18px;
  bottom: 18px;
}

.floating-status-temp {
  right: 18px;
  top: 18px;
}

.method-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}

.method-step {
  position: relative;
  display: grid;
  align-content: start;
  gap: 12px;
  min-height: 210px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.05);
}

.method-step::after {
  content: "";
  position: absolute;
  left: 22px;
  right: 22px;
  top: 0;
  height: 3px;
  border-radius: 999px;
  background: var(--blue);
}

.method-step span {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 850;
}

.method-step p {
  color: var(--ink-2);
  font-size: 0.94rem;
}

.about-section {
  background: var(--white);
}

.about-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 48px;
  align-items: start;
}

.about-copy,
.contact-copy {
  display: grid;
  gap: 16px;
}

.about-copy p:not(.eyebrow),
.contact-copy p:not(.eyebrow) {
  max-width: 650px;
  color: var(--ink-2);
  font-size: 1.04rem;
}

.audience-line {
  padding: 16px 18px;
  border: 1px solid rgba(255, 187, 12, 0.44);
  border-radius: var(--radius);
  background: #fffaf0;
  font-weight: 760;
}

.credibility-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.credibility-grid article {
  display: grid;
  gap: 16px;
  min-height: 138px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #fbfcff);
  box-shadow: 0 12px 30px rgba(17, 24, 39, 0.05);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.mini-mark {
  width: 34px;
  height: 34px;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, var(--blue) 0 45%, transparent 45%),
    linear-gradient(180deg, transparent 0 48%, var(--yellow) 48% 58%, transparent 58%),
    rgba(12, 95, 255, 0.08);
}

.credibility-grid strong {
  align-self: end;
  color: var(--ink);
}

.contact-copy .btn {
  width: fit-content;
}

.lead-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

.form-row {
  display: grid;
  gap: 8px;
}

.form-row-full,
.form-submit {
  grid-column: 1 / -1;
}

label {
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 760;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  border: 1px solid #cfd8e6;
  border-radius: var(--radius);
  color: var(--ink);
  background: var(--white);
  padding: 0.72rem 0.78rem;
}

textarea {
  resize: vertical;
}

input:hover,
select:hover,
textarea:hover {
  border-color: rgba(12, 95, 255, 0.52);
}

.form-submit {
  width: 100%;
  margin-top: 4px;
}

.site-footer {
  padding: 34px 0;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: start;
}

.footer-brand {
  display: inline-flex;
  margin-bottom: 8px;
  color: var(--ink);
  font-weight: 850;
  text-decoration: none;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px 18px;
}

.footer-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.reveal {
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.can-reveal .reveal {
  opacity: 0;
  transform: translateY(18px);
}

.hero-section .reveal {
  opacity: 1;
  transform: none;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes airflow {
  to {
    stroke-dashoffset: -36;
  }
}

@keyframes presencePulse {
  0%,
  100% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.35);
  }
}

@media (max-width: 1160px) {
  .nav-panel {
    gap: 14px;
  }

  .nav-cta {
    display: none;
  }

  .hero-grid,
  .demo-layout,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-demo {
    justify-self: start;
    width: min(100%, 760px);
  }

  .demo-copy {
    position: static;
  }
}

@media (max-width: 920px) {
  .action-grid,
  .service-grid,
  .method-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-workspace {
    grid-template-columns: 1fr;
  }

  .control-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .nav {
    min-height: 66px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-panel {
    position: fixed;
    inset: 66px 0 auto;
    display: none;
    align-items: stretch;
    justify-content: flex-start;
    flex-direction: column;
    gap: 0;
    padding: 10px 16px 18px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 22px 35px rgba(17, 24, 39, 0.12);
  }

  .nav-panel.is-open {
    display: flex;
  }

  .nav-panel a:not(.btn) {
    min-height: 46px;
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-size: 1rem;
  }

  .nav-mobile-cta {
    display: inline-flex;
    width: 100%;
    margin-top: 16px;
  }

  .hero-section {
    padding: 44px 0 40px;
  }

  .section {
    padding: 76px 0;
  }

  .building-card {
    min-height: 330px;
  }

  .building-svg,
  .building-card-large .building-svg {
    min-height: 330px;
  }

  .building-card-large {
    min-height: 330px;
  }

  .lead-form {
    grid-template-columns: 1fr;
  }

  .form-row-full,
  .form-submit {
    grid-column: auto;
  }

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

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .container {
    padding-inline: 12px;
  }

  h1 {
    font-size: clamp(2rem, 10vw, 2.65rem);
    line-height: 1.06;
    overflow-wrap: break-word;
    text-wrap: auto;
  }

  h2 {
    font-size: clamp(1.68rem, 8vw, 2.15rem);
    overflow-wrap: break-word;
  }

  .brand-lockup span {
    font-size: 1rem;
  }

  .brand-lockup img {
    width: 34px;
    height: 34px;
  }

  .header-actions {
    gap: 7px;
  }

  .lang-btn {
    min-width: 34px;
  }

  .hero-copy {
    gap: 16px;
  }

  .hero-actions,
  .hero-actions .btn {
    width: 100%;
  }

  .demo-shell-compact,
  .demo-shell-large,
  .lead-form {
    padding: 12px;
  }

  .demo-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-control-row,
  .control-panel,
  .action-grid,
  .service-grid,
  .method-list,
  .credibility-grid,
  .demo-metrics {
    grid-template-columns: 1fr;
  }

  .control-chip {
    justify-content: flex-start;
    padding-inline: 12px;
  }

  .building-card {
    min-height: 290px;
  }

  .building-svg,
  .building-card-large .building-svg {
    min-height: 290px;
  }

  .building-card-large {
    min-height: 290px;
  }

  .floating-status {
    position: relative;
    inset: auto;
    display: inline-grid;
    margin: 0 0 10px 10px;
  }

  .footer-meta {
    display: grid;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}