:root {
  --ink: #10243e;
  --muted: #607086;
  --blue: #1769e0;
  --blue-deep: #0f4fb5;
  --sky: #eaf3ff;
  --line: #dbe5f0;
  --white: #ffffff;
  --surface: #f7faff;
  --shadow: 0 24px 60px rgba(18, 57, 102, 0.12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { display: block; }

.site-header {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -0.02em; }
.site-header nav { display: flex; gap: 28px; color: var(--muted); font-size: 0.95rem; }
.site-header nav a:hover { color: var(--blue); }

.hero {
  width: min(1180px, calc(100% - 40px));
  margin: 50px auto 0;
  min-height: 620px;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 72px;
  align-items: center;
}
.eyebrow {
  margin: 0 0 16px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.15em;
}
h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 24px;
  max-width: 760px;
  font-size: clamp(3rem, 6vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}
.hero-text {
  max-width: 660px;
  color: var(--muted);
  font-size: 1.15rem;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 32px; }
.button {
  min-height: 50px;
  padding: 0 20px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 750;
  transition: transform 160ms ease, box-shadow 160ms ease;
}
.button:hover { transform: translateY(-2px); }
.primary { color: white; background: linear-gradient(135deg, var(--blue), var(--blue-deep)); box-shadow: 0 12px 28px rgba(23, 105, 224, 0.22); }
.secondary { background: white; border: 1px solid var(--line); }

.hero-card {
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255,255,255,0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}
.window-top { height: 54px; display: flex; align-items: center; gap: 8px; padding: 0 20px; background: var(--surface); border-bottom: 1px solid var(--line); }
.window-top span { width: 10px; height: 10px; border-radius: 999px; background: #b6c6d8; }
.principle { display: grid; grid-template-columns: 58px 1fr; gap: 12px; padding: 28px; border-bottom: 1px solid var(--line); }
.principle:last-child { border-bottom: 0; }
.principle strong { color: var(--blue); font-size: 0.8rem; }
.principle h2 { margin-bottom: 5px; font-size: 1.12rem; }
.principle p { margin-bottom: 0; color: var(--muted); }

.section { width: min(1180px, calc(100% - 40px)); margin: 120px auto; }
.section-heading { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 60px; align-items: start; }
.section-heading h2 { font-size: clamp(2rem, 4vw, 3.6rem); line-height: 1.05; letter-spacing: -0.04em; }
.section-heading p { color: var(--muted); font-size: 1.08rem; max-width: 680px; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.product-card { min-height: 340px; padding: 28px; border-radius: 24px; border: 1px solid var(--line); background: white; display: flex; flex-direction: column; justify-content: space-between; box-shadow: 0 12px 30px rgba(18, 57, 102, 0.06); }
.product-card.featured { background: linear-gradient(160deg, #eff6ff, #ffffff); }
.muted-card { background: #f6f8fb; }
.product-icon { width: 60px; height: 60px; border-radius: 18px; display: grid; place-items: center; background: linear-gradient(135deg, var(--blue), #68a6ff); color: white; font-weight: 850; }
.status { display: inline-block; margin: 32px 0 10px; color: var(--blue); font-size: 0.75rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.09em; }
.product-card h2 { margin-bottom: 10px; font-size: 1.45rem; }
.product-card p { margin-bottom: 0; color: var(--muted); }

.contact-section {
  width: min(1180px, calc(100% - 40px));
  margin: 120px auto;
  padding: 46px;
  border-radius: 28px;
  color: white;
  background: linear-gradient(135deg, #1769e0, #0f4fb5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}
.contact-section .eyebrow { color: #cfe2ff; }
.contact-section p { margin-bottom: 0; color: #dce9ff; }
.contact-section h2 { margin-bottom: 8px; font-size: clamp(1.8rem, 4vw, 3rem); }
.light { background: white; color: var(--blue-deep); white-space: nowrap; }

footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 46px 0 60px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px 30px;
  align-items: center;
  color: var(--muted);
}
.footer-brand { color: var(--ink); }
.footer-links { display: flex; gap: 20px; justify-content: flex-end; }
footer small { grid-column: 1 / -1; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 42px; margin-top: 24px; }
  .section-heading, .product-grid { grid-template-columns: 1fr; }
  .section-heading { gap: 16px; }
  .contact-section { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 640px) {
  .site-header { min-height: 72px; }
  .site-header nav { display: none; }
  .hero, .section, .contact-section { width: min(100% - 28px, 1180px); }
  .hero { min-height: auto; margin-top: 34px; }
  h1 { font-size: clamp(2.8rem, 14vw, 4.3rem); }
  .section { margin: 88px auto; }
  .product-card { min-height: 300px; }
  .contact-section { padding: 30px 24px; }
  footer { width: min(100% - 28px, 1180px); grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}