:root {
  --bg: #f8fafc;
  --bg-elev: rgba(255, 255, 255, 0.78);
  --text: #0f172a;
  --muted: #334155;
  --line: #dbe3ee;
  --brand: #2563eb;
  --brand-strong: #1d4ed8;
  --accent: #0ea5e9;
  --shadow: 0 18px 35px rgba(15, 23, 42, 0.08);
}

[data-theme="dark"] {
  --bg: #060b18;
  --bg-elev: rgba(10, 16, 32, 0.78);
  --text: #f8fafc;
  --muted: #cbd5e1;
  --line: #1f2a44;
  --brand: #60a5fa;
  --brand-strong: #3b82f6;
  --accent: #22d3ee;
  --shadow: 0 20px 40px rgba(2, 6, 23, 0.45);
}

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

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
}

.page-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(circle at 15% 10%, rgba(14, 165, 233, 0.2), transparent 45%),
    radial-gradient(circle at 80% 15%, rgba(37, 99, 235, 0.2), transparent 40%),
    radial-gradient(circle at 30% 80%, rgba(99, 102, 241, 0.16), transparent 38%);
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 5.5rem 0;
}

h1,
h2,
h3 {
  line-height: 1.15;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.7rem);
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.65rem, 3.2vw, 2.5rem);
  letter-spacing: -0.02em;
}

h3 {
  font-size: 1.4rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

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

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--brand);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(14px);
}

.nav-wrap {
  min-height: 74px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  line-height: 1;
}

.brand-logo {
  width: auto;
  height: 38px;
  display: block;
}

.brand-text {
  color: var(--text);
  letter-spacing: -0.02em;
  font-size: 1.28rem;
  font-weight: 800;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.3rem;
}

.site-nav a {
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--text);
}

.theme-toggle {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  display: inline-flex;
  gap: 0.45rem;
  align-items: center;
  font-weight: 600;
  cursor: pointer;
}

.hero {
  padding-top: 6.2rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
}

.lead {
  font-size: 1.08rem;
  max-width: 64ch;
}

.hero-actions {
  margin-top: 1.4rem;
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.btn {
  border-radius: 0.85rem;
  padding: 0.78rem 1.15rem;
  font-weight: 650;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-strong));
  box-shadow: var(--shadow);
}

.btn-ghost {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  color: var(--text);
}

.hero-card,
.stat-card,
.product-card,
.client-card,
.contact-wrap {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 1.35rem;
}

.hero-card-title {
  color: var(--text);
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.hero-card ul,
.feature-list ul {
  margin: 0;
  padding-left: 1.15rem;
}

.hero-card li,
.feature-list li {
  margin-bottom: 0.5rem;
  color: var(--muted);
}

.section-text {
  max-width: 70ch;
}

.stats {
  margin-top: 1.8rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-card {
  padding: 1.2rem;
}

.stat-value {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 0.35rem;
}

.stat-label {
  margin: 0;
}

.product-card {
  margin-top: 1.4rem;
  padding: 1.5rem;
  display: grid;
  gap: 1.3rem;
  grid-template-columns: 1.25fr 0.75fr;
}

.feature-title {
  color: var(--text);
  font-weight: 650;
}

.client-grid {
  margin-top: 1.4rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.client-card {
  padding: 1.2rem;
}

.client-link {
  color: var(--brand);
  font-weight: 650;
}

.section-contact {
  padding-bottom: 6.2rem;
}

.contact-wrap {
  padding: 1.55rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0 2rem;
}

.footer-wrap {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.footer-wrap p {
  margin: 0;
}

@media (max-width: 950px) {
  .hero-grid,
  .product-card {
    grid-template-columns: 1fr;
  }

  .site-nav {
    display: none;
  }

  .brand-logo {
    height: 32px;
  }

  .brand-text {
    font-size: 1.15rem;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 4.3rem 0;
  }

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