:root {
  color-scheme: dark;
  --ink: #f7fbff;
  --muted: #b7c5d4;
  --quiet: #8090a2;
  --line: rgba(255, 255, 255, 0.16);
  --glass: rgba(10, 19, 29, 0.58);
  --glass-strong: rgba(9, 16, 24, 0.78);
  --teal: #38dbc4;
  --cyan: #75c8ff;
  --amber: #f4b75f;
  --red: #ff6f61;
  --bg: #071018;
  --panel: #0c1721;
  --shadow: 0 24px 90px rgba(0, 0, 0, 0.42);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 8%, rgba(56, 219, 196, 0.14), transparent 26rem),
    linear-gradient(140deg, #05090e 0%, #071018 42%, #111b1d 100%);
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  opacity: 0.48;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 78%);
}

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

p {
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 10, 16, 0.78);
  backdrop-filter: blur(22px) saturate(150%);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 16px 0;
}

.brand {
  display: grid;
  gap: 2px;
  min-width: 170px;
}

.brand strong {
  font-size: 1rem;
}

.brand span,
.eyebrow,
.mini-label {
  color: var(--teal);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.nav-links a {
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 9px 12px;
  transition: 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  border-color: rgba(117, 200, 255, 0.35);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  position: relative;
  min-height: calc(100vh - 74px);
  display: grid;
  align-items: end;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(4, 9, 14, 0.92) 0%, rgba(4, 9, 14, 0.72) 42%, rgba(4, 9, 14, 0.22) 100%),
    linear-gradient(0deg, rgba(7, 16, 24, 0.96) 0%, rgba(7, 16, 24, 0.28) 42%, rgba(7, 16, 24, 0.38) 100%),
    url("assets/ai-systems-hero.png") center right / cover no-repeat;
}

.hero-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 96px 0 48px;
}

.hero-copy {
  max-width: 780px;
}

.hero h1,
.page-hero h1 {
  max-width: 980px;
  margin: 18px 0;
  font-size: clamp(3rem, 7vw, 6.8rem);
  line-height: 0.93;
  letter-spacing: 0;
}

.hero .lead,
.page-hero .lead {
  max-width: 760px;
  font-size: clamp(1.08rem, 2vw, 1.38rem);
  color: #d9e7f5;
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 12px 16px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.18);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button.primary {
  border-color: rgba(56, 219, 196, 0.5);
  color: #04100f;
  background: linear-gradient(135deg, var(--teal), var(--cyan));
  font-weight: 800;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.36);
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 68px;
}

.glass,
.metric,
.service-card,
.proof-card,
.offer-card,
.faq-item,
.landing-card,
.stat-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.035));
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px) saturate(150%);
}

.metric {
  min-height: 128px;
  padding: 18px;
}

.metric strong,
.stat-card strong {
  display: block;
  color: var(--ink);
  font-size: clamp(1.9rem, 4vw, 3.2rem);
  line-height: 1;
}

.metric span,
.stat-card span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.35;
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 0;
}

.section.compact {
  padding: 48px 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 0.55fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 28px;
}

h2 {
  margin: 10px 0 0;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.25;
}

.grid-3,
.grid-2,
.landing-grid {
  display: grid;
  gap: 14px;
}

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

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

.service-card,
.proof-card,
.offer-card,
.faq-item,
.landing-card,
.stat-card {
  padding: 22px;
}

.service-card p,
.proof-card p,
.offer-card p,
.faq-item p,
.landing-card p {
  margin-top: 12px;
}

.card-link {
  display: inline-flex;
  margin-top: 18px;
  color: var(--teal);
  font-weight: 800;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.proof-card {
  background: rgba(7, 15, 23, 0.72);
}

.proof-card strong {
  color: var(--amber);
  font-size: 1.6rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.55fr);
  gap: 18px;
  align-items: stretch;
}

.deep-panel {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass-strong);
}

.deep-panel ul,
.copy-block ul,
.offer-card ul {
  padding-left: 18px;
  margin: 16px 0 0;
  color: var(--muted);
  line-height: 1.65;
}

.deep-panel li + li,
.copy-block li + li,
.offer-card li + li {
  margin-top: 8px;
}

.timeline {
  display: grid;
  gap: 12px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.timeline-item span {
  color: var(--teal);
  font-weight: 800;
}

.page-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: 0.54;
  background:
    linear-gradient(90deg, rgba(5, 10, 15, 0.95), rgba(5, 10, 15, 0.56)),
    url("assets/ai-systems-hero.png") center right / cover no-repeat;
}

.page-hero-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 86px 0 74px;
}

.breadcrumb {
  color: var(--quiet);
  font-weight: 700;
  font-size: 0.9rem;
}

.breadcrumb a {
  color: var(--muted);
}

.copy-block {
  max-width: 820px;
}

.copy-block + .copy-block {
  margin-top: 34px;
}

.copy-block h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.landing-grid {
  grid-template-columns: minmax(0, 0.72fr) minmax(300px, 0.4fr);
  align-items: start;
}

.side-panel {
  position: sticky;
  top: 94px;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.tag-list span {
  border: 1px solid rgba(117, 200, 255, 0.28);
  border-radius: 999px;
  padding: 7px 10px;
  color: #d7ebf8;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.86rem;
}

.cta-band {
  padding: 36px;
  border: 1px solid rgba(56, 219, 196, 0.26);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(56, 219, 196, 0.14), rgba(244, 183, 95, 0.08)),
    rgba(7, 15, 23, 0.78);
  box-shadow: var(--shadow);
}

.site-footer {
  border-top: 1px solid var(--line);
  background: rgba(3, 7, 12, 0.82);
}

.footer-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 38px 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  color: var(--quiet);
}

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

@media (max-width: 900px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    padding-top: 70px;
  }

  .hero-metrics,
  .grid-3,
  .grid-2,
  .proof-strip,
  .split,
  .section-head,
  .landing-grid {
    grid-template-columns: 1fr;
  }

  .side-panel {
    position: static;
  }
}

@media (max-width: 560px) {
  .nav,
  .section,
  .hero-inner,
  .page-hero-inner,
  .footer-inner {
    width: min(100% - 28px, 1180px);
  }

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

  .nav-links a {
    padding: 8px 10px;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.5rem, 16vw, 4rem);
  }

  .metric,
  .service-card,
  .proof-card,
  .offer-card,
  .faq-item,
  .landing-card,
  .stat-card,
  .deep-panel,
  .cta-band {
    padding: 18px;
  }

  .timeline-item {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}