:root {
  --bg: #f8fafc;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --border: #e2e8f0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 24px;
}

header {
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.nav strong {
  font-size: 22px;
  letter-spacing: .3px;
}

.nav nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
}

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

.hero {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 24px;
  margin-top: 36px;
  align-items: start;
}

.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3rem);
  line-height: 1.05;
  margin: 0;
}

.lead, .sublead, .section-intro, .card p, .info-card p, .product p {
  color: var(--muted);
}

.hero-actions {
  margin-top: 18px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  padding: 14px 22px;
  border-radius: 10px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.block { margin-top: 56px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.card, .product, .info-card, .feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  transition: .15s ease;
}

.card:hover, .product:hover, .info-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.product-body { padding: 4px 0 0; }

.feature-list {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

footer {
  margin-top: 80px;
  border-top: 1px solid var(--border);
  padding: 20px;
  text-align: center;
  color: var(--muted);
  background: white;
}

@media (max-width: 900px) {
  .hero, .grid-2 { grid-template-columns: 1fr; }
  .nav nav { display: none; }
}