* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --primary: #1e3a8a;
  --primary-hover: #1e40af;
  --accent: #f59e0b;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* Topbar */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  font-weight: 800;
  font-size: 20px;
  color: var(--primary);
}
.topbar nav { display: flex; gap: 28px; }
.topbar nav a {
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
  transition: color .15s;
}
.topbar nav a:hover { color: var(--text); }
.cta-small {
  background: var(--primary);
  color: #fff !important;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
}
.cta-small:hover { background: var(--primary-hover); }

/* Hero */
.hero {
  padding: 88px 0 72px;
  background: linear-gradient(180deg, #eff6ff 0%, var(--bg) 100%);
}
.hero h1 {
  font-size: 48px;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 760px;
  margin-bottom: 18px;
}
.hero .lead {
  font-size: 19px;
  color: var(--muted);
  max-width: 640px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 12px; margin-bottom: 56px; }

.btn {
  display: inline-block;
  padding: 13px 24px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: all .15s;
  border: 1px solid transparent;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--surface); }
.btn-sm { padding: 7px 14px; font-size: 13px; background: #f1f5f9; color: var(--text); }
.btn-sm:hover { background: #e2e8f0; }

.hero-stats {
  display: flex;
  gap: 56px;
}
.hero-stats > div { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 28px; color: var(--primary); font-weight: 800; }
.hero-stats span { color: var(--muted); font-size: 14px; }

/* Sections */
section { padding: 80px 0; }
h2 {
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}
.section-sub { color: var(--muted); font-size: 17px; margin-bottom: 40px; }

/* Catalog */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 24px;
}
.card {
  background: var(--surface);
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  transition: all .2s;
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08);
  border-color: #cbd5e1;
}
.card-img {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 72px;
  color: rgba(255,255,255,0.85);
}
.card-body { padding: 22px; }
.card-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 6px; }
.card-body .meta { color: var(--muted); font-size: 13px; margin-bottom: 12px; }
.card-body .desc { font-size: 14px; color: #334155; margin-bottom: 18px; min-height: 42px; }
.card-foot { display: flex; align-items: center; justify-content: space-between; }
.price { font-size: 22px; font-weight: 800; color: var(--primary); }

/* About */
.about { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.about-inner {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 64px;
  align-items: center;
}
.checks { list-style: none; margin-top: 20px; }
.checks li {
  padding: 10px 0 10px 32px;
  position: relative;
  font-size: 16px;
  color: #334155;
}
.checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 10px;
  width: 22px;
  height: 22px;
  background: #dcfce7;
  color: #16a34a;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}
.about-card {
  background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
  color: #fff;
  padding: 36px;
  border-radius: 16px;
}
.about-card h3 { font-size: 22px; margin-bottom: 10px; }
.about-card p { opacity: 0.9; margin-bottom: 22px; }
.about-card .btn-primary { background: #fff; color: var(--primary); }
.about-card .btn-primary:hover { background: #f1f5f9; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: all .15s;
}
a.contact-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.contact-icon { font-size: 28px; margin-bottom: 8px; }
.contact-card strong { font-size: 17px; }
.contact-card span:last-child { color: var(--muted); font-size: 14px; }

/* Footer */
footer { background: #0f172a; color: #cbd5e1; padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; font-size: 14px; }

/* Responsive */
@media (max-width: 820px) {
  .hero { padding: 56px 0 48px; }
  .hero h1 { font-size: 34px; }
  .hero-stats { gap: 32px; flex-wrap: wrap; }
  .topbar nav { display: none; }
  .about-inner { grid-template-columns: 1fr; gap: 32px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; gap: 6px; text-align: center; }
  section { padding: 56px 0; }
  h2 { font-size: 26px; }
}