/* Unified Technical Consulting — shared site styles.
   Self-contained, no external fonts or assets, light/dark aware. */

:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --text: #1c2530;
  --muted: #5b6672;
  --border: #e3e7ec;
  --accent: #1f4b73;
  --accent-ink: #ffffff;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.06), 0 6px 20px rgba(16, 24, 40, 0.05);
  --maxw: 760px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1419;
    --surface: #171d25;
    --text: #e6eaef;
    --muted: #9aa6b2;
    --border: #263039;
    --accent: #5aa2df;
    --accent-ink: #0f1419;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

a { color: var(--accent); }

.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.site-header .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.2px;
  color: var(--text);
  text-decoration: none;
}

.brand span { color: var(--muted); font-weight: 400; }

.nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 20px;
  font-size: 0.95rem;
}
.nav a:hover { color: var(--text); }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px 24px;
}

main.wrap { padding-top: 40px; padding-bottom: 56px; }

.hero { padding: 56px 0 8px; }
.hero h1 { font-size: 2rem; line-height: 1.2; margin: 0 0 12px; }
.hero p.lede { font-size: 1.15rem; color: var(--muted); margin: 0 0 28px; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: var(--shadow);
}
.btn.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border);
  box-shadow: none;
  margin-left: 10px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 26px;
  box-shadow: var(--shadow);
  margin: 22px 0;
}

h2 { font-size: 1.3rem; margin: 36px 0 10px; }
h3 { font-size: 1.05rem; margin: 26px 0 6px; }

.legal h1 { font-size: 1.7rem; margin-bottom: 4px; }
.legal .updated { color: var(--muted); font-size: 0.9rem; margin: 0 0 24px; }
.legal p, .legal li { color: var(--text); }
.legal ul { padding-left: 22px; }
.legal li { margin: 6px 0; }

.callout {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 14px 18px;
  margin: 18px 0;
  color: var(--muted);
  font-size: 0.97rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0;
}
.feature-grid .card { margin: 0; }
.feature-grid h3 { margin-top: 0; }
.feature-grid p { color: var(--muted); font-size: 0.97rem; margin: 0; }

.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.site-footer a { color: var(--muted); text-decoration: none; margin-left: 18px; }
.site-footer a:first-child { margin-left: 0; }
.site-footer a:hover { color: var(--text); }