:root {
  --bg: #020617;
  --bg-soft: #0f172a;
  --card: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.12);
  --text: #ffffff;
  --muted: #cbd5e1;
  --accent: #38bdf8;
  --accent-dark: #0369a1;
  --light: #f8fafc;
  --dark: #0f172a;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }
.container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(2, 6, 23, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--accent);
  color: var(--dark);
  font-weight: 800;
}
.brand small { display: block; color: #94a3b8; font-size: 12px; margin-top: 2px; }
.nav { display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; }
.nav a:hover { color: #fff; }
.menu-button { display: none; background: none; border: 0; color: #fff; font-size: 28px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  padding: 14px 20px;
  font-weight: 700;
  transition: 0.2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #082f49; }
.btn-primary:hover { background: #7dd3fc; transform: translateY(-1px); }
.btn-light { background: #fff; color: var(--dark); }
.btn-outline { border-color: var(--line); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.08); }
.btn-dark { background: var(--dark); color: #fff; width: 100%; }

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(56,189,248,0.32), transparent 35%),
    radial-gradient(circle at bottom left, rgba(14,165,233,0.18), transparent 40%);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; padding: 110px 0; }
.eyebrow, .section-kicker {
  display: inline-flex;
  border: 1px solid rgba(56,189,248,0.35);
  background: rgba(56,189,248,0.1);
  color: #bae6fd;
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 600;
}
.hero h1 { font-size: clamp(44px, 7vw, 76px); line-height: 0.95; letter-spacing: -0.05em; margin: 22px 0; }
.hero p, .ai-section p, .approach-grid p, .contact-card p { color: var(--muted); font-size: 18px; line-height: 1.75; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 34px; }
.hero-card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(14px);
  border-radius: 32px;
  padding: 34px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.3);
}
.card-icon, .service-icon { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 18px; background: rgba(56,189,248,0.16); margin-bottom: 18px; font-size: 24px; }
.check-list { padding: 0; margin: 24px 0 0; list-style: none; }
.check-list li { color: var(--muted); margin: 14px 0; padding-left: 28px; position: relative; }
.check-list li::before { content: '✓'; color: var(--accent); position: absolute; left: 0; font-weight: 800; }

.section { padding: 92px 0; }
.section-heading { max-width: 780px; margin-bottom: 46px; }
.section-heading h2, .ai-section h2, .approach-grid h2, .contact-card h2 { font-size: clamp(34px, 4vw, 52px); line-height: 1.05; letter-spacing: -0.04em; margin: 18px 0; }
.section-heading p { color: var(--muted); font-size: 18px; line-height: 1.7; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 28px;
  padding: 26px;
  min-height: 280px;
}
.service-card h3 { margin: 0 0 12px; font-size: 20px; }
.service-card p { color: var(--muted); line-height: 1.65; font-size: 14px; }

.ai-section { padding-top: 30px; }
.ai-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: center;
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 36px;
  padding: 52px;
}
.use-case-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.use-case-grid div {
  border: 1px solid var(--line);
  background: rgba(2,6,23,0.58);
  border-radius: 24px;
  padding: 22px;
  color: var(--muted);
}
.use-case-grid div::before { content: '✓'; color: var(--accent); font-weight: 800; display: block; margin-bottom: 10px; }

.light { background: #fff; color: var(--dark); }
.light .section-kicker { color: var(--accent-dark); background: #e0f2fe; border-color: #bae6fd; }
.approach-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 50px; align-items: center; }
.approach-grid p { color: #475569; }
.steps { display: grid; gap: 16px; }
.step { background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 24px; padding: 22px; }
.step strong { display: block; color: var(--accent-dark); font-size: 14px; margin-bottom: 6px; }
.step span { font-weight: 700; font-size: 18px; }

.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.industry-grid div { border: 1px solid var(--line); background: var(--card); border-radius: 22px; padding: 20px; color: var(--muted); }

.contact-section { padding-top: 20px; }
.contact-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: start;
  background: var(--accent);
  color: var(--dark);
  border-radius: 36px;
  padding: 50px;
}
.contact-card p { color: #0f172a; }
.section-kicker.dark { color: #082f49; background: rgba(255,255,255,0.5); border-color: rgba(255,255,255,0.8); }
.contact-form { display: grid; gap: 14px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  border: 0;
  border-radius: 16px;
  padding: 16px;
  font: inherit;
  outline: none;
}

.footer { border-top: 1px solid var(--line); color: #94a3b8; font-size: 14px; }
.footer-wrap { display: flex; justify-content: space-between; gap: 18px; padding: 28px 0; }

.reveal { opacity: 0; transform: translateY(24px); transition: 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.12s; }

@media (max-width: 980px) {
  .nav, .nav-cta { display: none; }
  .menu-button { display: block; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 78px;
    left: 20px;
    right: 20px;
    flex-direction: column;
    align-items: flex-start;
    background: #0f172a;
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 20px;
  }
  .hero-grid, .ai-grid, .approach-grid, .contact-card { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .container { width: min(100% - 28px, 1180px); }
  .hero-grid { padding: 74px 0; }
  .section { padding: 64px 0; }
  .service-grid, .use-case-grid, .industry-grid { grid-template-columns: 1fr; }
  .ai-grid, .contact-card { padding: 28px; border-radius: 28px; }
  .footer-wrap { flex-direction: column; }
}