:root {
  --color-bg: #0d1f3a;
  --color-bg-alt: #0a1829;
  --color-bg-card: #112344;
  --color-accent: #daa520;
  --color-accent-hover: #c4941c;
  --color-text: #ffffff;
  --color-text-muted: rgba(255, 255, 255, 0.6);
  --color-text-subtle: rgba(255, 255, 255, 0.35);
  --color-border: rgba(218, 165, 32, 0.2);
  --color-border-light: rgba(255, 255, 255, 0.08);
  --font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --text-hero: clamp(36px, 11vw, 64px);
  --text-h2: clamp(26px, 8vw, 44px);
  --text-h3: clamp(18px, 5vw, 22px);
  --text-body-lg: 17px;
  --text-body: 15px;
  --text-small: 13px;
  --text-xs: 11px;
  --font-bold: 700;
  --font-semibold: 600;
  --font-medium: 500;
  --font-regular: 400;
  --lh-tight: 1.1;
  --lh-normal: 1.5;
  --lh-relaxed: 1.7;
  --max-width: 1200px;
  --padding-section: 60px 24px;
  --padding-card: 24px;
  --gap-grid: 16px;
  --gap-inner: 16px;
  --gap-tight: 8px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--color-bg);
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--color-text);
  font-family: var(--font-family);
  font-size: var(--text-body);
  line-height: var(--lh-relaxed);
  background:
    radial-gradient(circle at 50% -20%, rgba(218, 165, 32, 0.16), transparent 34rem),
    linear-gradient(180deg, #0d1f3a 0%, #0a1829 100%);
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  opacity: 0.38;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, black 18%, black 82%, transparent);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 18px 18px;
  opacity: 0.07;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

.skip-link {
  position: fixed;
  left: 16px;
  top: 16px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-bg);
  background: var(--color-accent);
  transform: translateY(-140%);
  transition: transform 0.2s ease;
}

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

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

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

.section-alt {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0)),
    var(--color-bg-alt);
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 12px 24px;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

@media (max-width: 767px) {
  .site-header {
    border-bottom: 2px solid var(--color-accent);
  }
}

.site-header.is-scrolled {
  background: rgba(10, 24, 41, 0.88);
  border-bottom: 1px solid var(--color-border-light);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  width: 148px;
  min-height: 44px;
  align-items: center;
}

.brand img,
.footer-logo {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 8px 24px rgba(218, 165, 32, 0.18));
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-width: 44px;
  min-height: 44px;
  padding: 0 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font: inherit;
  font-size: 0;
  background: rgba(17, 35, 68, 0.68);
}

.menu-toggle span {
  display: block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateX(9px);
}

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

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateX(-9px);
}

.primary-nav {
  position: fixed;
  inset: 74px 24px auto;
  display: grid;
  gap: 4px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(10, 24, 41, 0.96);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.3);
  transform: translateY(-16px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.primary-nav.is-open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.primary-nav a {
  min-height: 44px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-muted);
  font-size: 15px;
  font-weight: var(--font-medium);
}

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

.header-cta {
  display: none !important;
  width: auto !important;
  padding: 0 !important;
  margin: 0 !important;
}

@media (min-width: 768px) {
  .header-cta {
    display: inline-flex !important;
    width: auto !important;
    padding-inline: 18px !important;
  }
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  width: 100%;
  padding: 14px 24px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: var(--font-semibold);
  line-height: 1;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease, border-color 0.2s ease;
}

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

.button-primary {
  border: 0;
  color: var(--color-bg);
  background: var(--color-accent);
}

.button-primary:hover {
  background: var(--color-accent-hover);
}

.button-secondary {
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent);
  background: transparent;
}

.button-secondary:hover {
  background: rgba(218, 165, 32, 0.08);
}

.button-dark {
  color: var(--color-text);
  background: var(--color-bg);
}

.button-dark:hover {
  background: var(--color-bg-card);
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-accent);
  font-weight: var(--font-medium);
}

.text-link::after {
  content: "→";
  margin-left: 8px;
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(4px);
}

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: 160px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(13, 31, 58, 0.98) 0%, rgba(13, 31, 58, 0.86) 34%, rgba(13, 31, 58, 0.28) 66%, rgba(13, 31, 58, 0.16) 100%),
    linear-gradient(180deg, rgba(13, 31, 58, 0) 72%, var(--color-bg) 100%),
    url("assets/arketu bg hero.png") center / cover no-repeat;
}

.ambient-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 78% 28%, rgba(218, 165, 32, 0.18), transparent 20rem),
    radial-gradient(circle at 12% 80%, rgba(255, 255, 255, 0.05), transparent 18rem);
}

.ambient-grid::before {
  content: none;
}

.hero-grid {
  position: relative;
  display: grid;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--color-accent);
  font-size: 12px;
  font-weight: var(--font-semibold);
  line-height: 1.4;
  letter-spacing: 2px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2 {
  margin: 0;
  font-weight: var(--font-bold);
  line-height: var(--lh-tight);
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: var(--text-hero);
}

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

h3 {
  margin: 0;
  font-size: var(--text-h3);
  line-height: 1.25;
}

.lead,
.section-intro > p:not(.eyebrow),
.section-copy p,
.contact-card p {
  color: var(--color-text-muted);
  font-size: var(--text-body-lg);
  line-height: var(--lh-normal);
}

.lead {
  margin: 20px 0 0;
  max-width: 670px;
}

.hero-actions {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.microcopy {
  margin: 18px 0 0;
  color: var(--color-text-subtle);
  font-size: 12px;
  line-height: 1.5;
}

.hero-proof {
  position: relative;
  grid-column: 1;
  width: min(100%, 420px);
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(135deg, rgba(218, 165, 32, 0.16), rgba(255, 255, 255, 0.035)),
    rgba(10, 24, 41, 0.74);
  backdrop-filter: blur(14px);
}

.hero-proof span {
  display: block;
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.hero-proof strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  line-height: 1.35;
}

.split-layout {
  display: grid;
  gap: 32px;
  align-items: center;
}

.robot-stage {
  position: relative;
  min-height: 560px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 50% 28%, rgba(218, 165, 32, 0.22), transparent 20rem),
    linear-gradient(180deg, rgba(218, 165, 32, 0.09), rgba(255, 255, 255, 0.018));
  overflow: hidden;
}

.robot-stage img {
  width: 100%;
  height: 680px;
  object-fit: cover;
  object-position: center top;
  filter: drop-shadow(0 30px 42px rgba(0, 0, 0, 0.42));
}

.robot-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, transparent 62%, var(--color-bg-alt) 100%),
    linear-gradient(90deg, rgba(10, 24, 41, 0.62), transparent 26%, transparent 72%, rgba(10, 24, 41, 0.32));
}

.robot-caption {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 18px;
  z-index: 1;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(10, 24, 41, 0.82);
  backdrop-filter: blur(16px);
}

.robot-caption span {
  display: block;
  color: var(--color-accent);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.robot-caption strong {
  display: block;
  margin-top: 6px;
  line-height: 1.35;
}

.section-copy p {
  margin: 18px 0 0;
}

.section-copy .eyebrow {
  color: var(--color-accent);
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 26px 0 14px;
}

.feature-list span {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
  font-weight: var(--font-medium);
}

.feature-list span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 18px rgba(218, 165, 32, 0.55);
}

.qualities {
  display: grid;
  gap: 12px;
  margin-top: 40px;
}

.quality-card,
.card,
.case-card,
details,
.contact-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
}

.quality-card {
  position: relative;
  padding: 20px;
  overflow: hidden;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0)),
    var(--color-bg-card);
}

.quality-card::after {
  content: "";
  position: absolute;
  inset: auto 18px 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.55;
}

.quality-card span,
.card-icon,
.service-index,
.process-step span,
.case-card > span {
  color: var(--color-accent);
  font-size: var(--text-small);
  font-weight: var(--font-semibold);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}

.quality-card h3 {
  margin-top: 8px;
}

.quality-card p {
  margin: 12px 0 0;
  color: var(--color-text-muted);
  font-size: var(--text-small);
  line-height: 1.6;
}

.section-intro {
  margin-bottom: 28px;
}

.section-intro h2 {
  max-width: 820px;
}

.section-intro > p:not(.eyebrow) {
  max-width: 720px;
  margin: 16px 0 0;
}

.problem-grid,
.service-grid,
.case-grid {
  display: grid;
  gap: var(--gap-grid);
}

.card {
  padding: var(--padding-card);
  transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
}

.problem-card {
  position: relative;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(160deg, rgba(218, 165, 32, 0.11), rgba(255, 255, 255, 0.018) 42%, rgba(10, 24, 41, 0.12)),
    var(--color-bg-card);
  overflow: hidden;
}

.problem-card::before {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(218, 165, 32, 0.28);
  border-radius: 50%;
}

.problem-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.problem-top small {
  color: var(--color-text-subtle);
  font-size: var(--text-xs);
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.problem-card h3 {
  margin-top: 44px;
}

.problem-card p,
.service-card p,
.process-step p,
.case-card dd,
.faq-list p,
.footer p {
  color: var(--color-text-muted);
}

.closing-line {
  margin-top: 28px;
  color: var(--color-accent);
  font-size: 18px;
  font-style: italic;
  font-weight: var(--font-medium);
  text-align: center;
}

.service-card {
  display: grid;
  gap: 20px;
  padding: 0;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)),
    var(--color-bg-card);
}

.service-card img,
.placeholder-visual {
  width: 100%;
  height: 470px;
  aspect-ratio: auto;
  object-fit: cover;
  border-bottom: 1px solid var(--color-border-light);
  background: var(--color-bg-alt);
}

.service-card img {
  object-position: top;
  padding: 0;
}

.placeholder-visual {
  position: relative;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(218, 165, 32, 0.22), transparent),
    radial-gradient(circle, rgba(218, 165, 32, 0.18), transparent 44%),
    var(--color-bg-alt);
  overflow: hidden;
}

.placeholder-visual::before,
.placeholder-visual::after {
  content: "";
  position: absolute;
  width: 54%;
  aspect-ratio: 1;
  border: 1px solid rgba(218, 165, 32, 0.35);
  border-radius: 50%;
}

.placeholder-visual::after {
  transform: rotate(64deg) scale(0.7);
}

.placeholder-visual span {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 86px;
  height: 86px;
  border-radius: 50%;
  color: var(--color-bg);
  font-weight: var(--font-bold);
  background: var(--color-accent);
}

.placeholder-visual i {
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(218, 165, 32, 0.7), transparent);
}

.service-card > div:not(.placeholder-visual) {
  padding: 0 var(--padding-card) var(--padding-card);
}

.service-card-featured {
  border-color: rgba(218, 165, 32, 0.42);
}

.service-card h3 {
  margin: 8px 0 12px;
}

.service-card strong {
  display: block;
  color: var(--color-text);
  line-height: var(--lh-normal);
}

.service-card p {
  margin: 12px 0;
}

.service-card span:not(.service-index) {
  display: block;
  color: var(--color-text-subtle);
  font-size: var(--text-small);
  line-height: 1.5;
}

.process-timeline {
  position: relative;
  display: grid;
  gap: 16px;
}

.process-step {
  position: relative;
  padding: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0)),
    var(--color-bg-card);
  overflow: hidden;
}

.process-step::after {
  content: "";
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  opacity: 0.75;
}

.process-step span {
  display: block;
  margin-bottom: 28px;
  font-size: 38px;
  line-height: 1;
}

.process-step strong {
  display: block;
  margin-top: 8px;
  color: var(--color-text);
}

.process-step p {
  margin: 12px 0 0;
}

.process-note {
  display: grid;
  gap: 18px;
  margin-top: 28px;
  text-align: center;
}

.process-note p {
  margin: 0;
  color: var(--color-accent);
  font-weight: var(--font-medium);
}

.case-grid {
  gap: 18px;
}

.case-card {
  position: relative;
  display: grid;
  gap: 18px;
  padding: 28px;
  overflow: hidden;
  background:
    radial-gradient(circle at 88% 12%, rgba(218, 165, 32, 0.2), transparent 12rem),
    linear-gradient(145deg, rgba(218, 165, 32, 0.1), rgba(255, 255, 255, 0.018) 48%),
    var(--color-bg-card);
}

.case-card::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: calc(var(--radius-md) - 4px);
  pointer-events: none;
}

.case-card h3 {
  margin: 0;
  max-width: 640px;
  font-size: clamp(21px, 6vw, 32px);
  line-height: 1.16;
}

.case-orb {
  position: relative;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-accent);
  font-weight: var(--font-bold);
  background:
    radial-gradient(circle, rgba(218, 165, 32, 0.14), transparent 62%),
    rgba(10, 24, 41, 0.72);
  box-shadow: 0 0 32px rgba(218, 165, 32, 0.1);
}

.case-orb::before,
.case-orb::after {
  content: "";
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(218, 165, 32, 0.14);
  border-radius: 50%;
}

.case-orb::after {
  inset: 11px -22px;
  border-left: 0;
  border-right: 0;
}

.case-card dl,
.case-card dd {
  margin: 0;
}

.case-card dl {
  display: grid;
  gap: 18px;
}

.case-card dl div {
  padding: 16px;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  background: rgba(10, 24, 41, 0.42);
}

.case-card dt {
  margin-bottom: 6px;
  color: var(--color-text);
  font-weight: var(--font-semibold);
}

.faq-wrap {
  max-width: 760px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  overflow: hidden;
}

details[open] {
  border-left: 3px solid var(--color-accent);
}

summary {
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  cursor: pointer;
  color: var(--color-text);
  font-weight: var(--font-semibold);
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--color-accent);
  font-size: 22px;
  line-height: 1;
}

details[open] summary::after {
  content: "×";
}

details p {
  margin: 0;
  padding: 0 18px 18px;
}

.contact-card {
  position: relative;
  isolation: isolate;
  display: grid;
  gap: 28px;
  padding: 28px;
  overflow: hidden;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(218, 165, 32, 0.12), rgba(255, 255, 255, 0.02)),
    var(--color-bg-card);
}

.contact-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  background: conic-gradient(from 0deg, transparent, rgba(218, 165, 32, 0.85), transparent 28%, transparent 100%);
  animation: border-glow 7s linear infinite;
}

.contact-card::after {
  content: "";
  position: absolute;
  inset: 1px;
  z-index: -1;
  border-radius: inherit;
  background: var(--color-bg-card);
}

.contact-card h2 {
  max-width: 720px;
  margin-inline: auto;
}

.contact-card p {
  margin: 16px 0 0;
}

.contact-actions {
  display: grid;
  justify-items: center;
  gap: 14px;
  align-content: start;
}

.contact-actions p {
  margin: 0;
  color: var(--color-text-subtle);
  font-size: var(--text-small);
}

.final-cta {
  padding: 60px 24px;
  color: var(--color-bg);
  text-align: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent),
    var(--color-accent);
}

.final-cta .container {
  display: grid;
  justify-items: center;
  gap: 18px;
}

.final-cta h2 {
  color: var(--color-bg);
}

.final-cta p {
  margin: 0;
  color: rgba(13, 31, 58, 0.72);
  font-weight: var(--font-medium);
}

.footer {
  padding: 56px 24px 28px;
  border-top: 1px solid var(--color-border-light);
  background: var(--color-bg-alt);
}

.footer-simple {
  display: grid;
  justify-items: center;
  gap: 14px;
  text-align: center;
}

.footer-logo {
  width: min(260px, 76vw);
  margin-bottom: 4px;
}

.footer p {
  margin: 0;
  color: var(--color-text-muted);
}

.copyright {
  position: relative;
  width: min(640px, 100%);
  max-width: none;
  margin: 22px auto 0;
  padding-top: 24px;
  border-top: 0;
  color: var(--color-text-subtle);
  font-size: 12px;
  text-align: center;
}

.copyright::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: min(420px, 100%);
  height: 1px;
  background: var(--color-border-light);
  transform: translateX(-50%);
}

.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.card:nth-child(1),
.quality-card:nth-child(1),
.process-step:nth-child(1) {
  transition-delay: 0ms;
}

.card:nth-child(2),
.quality-card:nth-child(2),
.process-step:nth-child(2) {
  transition-delay: 100ms;
}

.card:nth-child(3),
.quality-card:nth-child(3),
.process-step:nth-child(3) {
  transition-delay: 200ms;
}

@keyframes rotate-slow {
  to {
    transform: rotate(360deg);
  }
}

@keyframes border-glow {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .fade-up {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 768px) {
  :root {
    --padding-section: 70px 40px;
    --padding-card: 28px;
    --gap-grid: 20px;
  }

  .header-inner {
    grid-template-columns: auto 1fr auto;
  }

  .brand {
    width: 174px;
  }

  .menu-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    transform: none;
    opacity: 1;
    pointer-events: auto;
  }

  .primary-nav a {
    min-height: 44px;
    border: 0;
    font-size: 14px;
    transition: color 0.2s ease;
  }

  .primary-nav a:hover {
    color: var(--color-text);
  }

  .button {
    width: auto;
  }

  .split-layout,
  .contact-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.86fr);
  }

  .robot-stage {
    min-height: 680px;
  }

  .robot-stage img {
    height: 780px;
  }

  .hero {
    padding-top: 112px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.72fr) minmax(260px, 0.36fr);
  }

  .hero-actions,
  .process-note {
    display: flex;
    align-items: center;
  }

  .hero-actions {
    flex-wrap: wrap;
  }

  .hero-proof {
    align-self: end;
    justify-self: start;
    margin-top: 24px;
  }

  .qualities,
  .problem-grid,
  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .service-card-wide,
  .service-card-featured {
    grid-column: auto;
    grid-template-columns: 1fr;
  }

  .service-card-wide img,
  .service-card-featured img {
    height: 380px;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--color-border-light);
  }

  .contact-card {
    align-items: center;
  }

  .process-timeline {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .process-note {
    justify-content: center;
  }

}

@media (min-width: 1024px) {
  :root {
    --padding-section: 80px 40px;
    --padding-card: 32px;
    --gap-grid: 24px;
  }

  .site-header {
    padding-block: 18px;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 0.76fr) minmax(320px, 0.42fr);
  }

  .problem-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .service-card img,
  .placeholder-visual {
    height: 570px;
  }

  .service-card,
  .service-card-featured,
  .service-card-wide {
    grid-column: auto;
  }

  .qualities {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}