/* Engstrom Software LLC — company site
   Apple organization enrollment requires a real, functional website on the
   company domain. Parking pages, single-screen placeholders and social pages
   are rejected, so this is a genuine multi-page site. */

:root {
  --ink: #0f1117;
  --ink-soft: #3d4759;
  --muted: #6b7688;
  --line: #e3e7ee;
  --bg: #ffffff;
  --bg-alt: #f6f8fb;
  --blue: #2563eb;
  --blue-dark: #1d4ed8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 860px; margin: 0 auto; padding: 0 24px; }

header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}
header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  flex-wrap: wrap;
  gap: 8px;
}
.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}
nav a {
  color: var(--ink-soft);
  text-decoration: none;
  margin-left: 22px;
  font-size: 0.94rem;
}
nav a:hover { color: var(--blue); }

.hero { padding: 72px 0 56px; }
.hero h1 {
  font-size: 2.4rem;
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.hero p.lead {
  font-size: 1.15rem;
  color: var(--ink-soft);
  margin: 0 0 28px;
  max-width: 62ch;
}

section { padding: 44px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 1.4rem; margin: 0 0 14px; letter-spacing: -0.01em; }
section h3 { font-size: 1.05rem; margin: 26px 0 8px; }
p { margin: 0 0 14px; max-width: 68ch; }

.product {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  margin-top: 18px;
}
.product h3 { margin-top: 0; font-size: 1.15rem; }
.product .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blue);
  background: #eaf0fe;
  border-radius: 999px;
  padding: 3px 10px;
  margin-bottom: 10px;
}
ul { padding-left: 20px; margin: 0 0 14px; }
li { margin-bottom: 6px; }

a { color: var(--blue); }
a:hover { color: var(--blue-dark); }

.contact-block {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px 24px;
  margin-top: 18px;
}
.contact-block p { margin-bottom: 6px; }

footer {
  border-top: 1px solid var(--line);
  padding: 32px 0 48px;
  color: var(--muted);
  font-size: 0.9rem;
}
footer a { color: var(--muted); text-decoration: none; margin-right: 18px; }
footer a:hover { color: var(--blue); }
.legal-updated { color: var(--muted); font-size: 0.9rem; }

@media (max-width: 600px) {
  .hero { padding: 48px 0 36px; }
  .hero h1 { font-size: 1.85rem; }
  nav a { margin-left: 0; margin-right: 18px; }
  header .wrap { padding-top: 12px; padding-bottom: 12px; }
}