/* Passerine Analytics — site styles */

:root {
  --ink: #0B1B3A;          /* navy wordmark */
  --ink-2: #16284B;
  --accent: #3D6FB0;       /* bluebird blue */
  --accent-dark: #2F5A93;
  --bg: #FFFFFF;
  --bg-soft: #F4F7FB;
  --bg-band: #06132D;      /* dark navy band */
  --text: #2A3340;
  --text-muted: #586472;
  --border: #E2E8F1;
  --radius: 14px;
  --maxw: 1080px;
  --shadow: 0 1px 2px rgba(20, 50, 75, 0.06), 0 8px 24px rgba(20, 50, 75, 0.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--ink);
  font-size: 1.05rem;
}
.brand img { height: 60px; width: auto; display: block; }
.brand:hover { text-decoration: none; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--text); font-size: 0.95rem; font-weight: 500; }
.nav a:hover { color: var(--accent-dark); text-decoration: none; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(180deg, var(--bg-soft) 0%, #FFFFFF 100%);
  padding: 96px 0 88px;
  border-bottom: 1px solid var(--border);
}
.hero .eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
  font-weight: 600;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  line-height: 1.12;
  color: var(--ink);
  margin: 0 0 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  max-width: 18ch;
}
.hero p {
  font-size: clamp(1.05rem, 2.2vw, 1.22rem);
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 0 32px;
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.18s ease;
}
.btn:hover { background: var(--accent-dark); text-decoration: none; }
.btn-secondary {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--border);
  margin-left: 10px;
}
.btn-secondary:hover { background: var(--bg-soft); }

/* ---------- Sections ---------- */
section { padding: 84px 0; }
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  color: var(--ink);
  margin: 0 0 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
}
.section-head p { color: var(--text-muted); font-size: 1.08rem; margin: 0; }

.soft { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Capabilities ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: var(--shadow);
}
.card .icon {
  width: 44px; height: 44px;
  border-radius: 11px;
  background: rgba(61, 111, 176, 0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.card .icon svg { width: 22px; height: 22px; stroke: var(--accent-dark); }
.card h3 { margin: 0 0 8px; font-size: 1.18rem; color: var(--ink); font-weight: 650; }
.card p { margin: 0; color: var(--text-muted); font-size: 0.98rem; }

/* ---------- About ---------- */
.about-text { max-width: 640px; }
.about-text p { font-size: 1.1rem; color: var(--text); margin: 0 0 18px; }
.about-text p:last-child { margin-bottom: 0; }

/* ---------- Contact ---------- */
.contact { text-align: center; }
.contact .section-head { margin: 0 auto 28px; }
.contact-email {
  display: inline-block;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--accent-dark);
  padding: 14px 28px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  box-shadow: var(--shadow);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--bg-band);
  color: #B9CAD6;
  padding: 40px 0;
}
.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.site-footer .brand { color: #fff; font-size: 1rem; font-weight: 600; }
.site-footer small { color: #8AA1B2; font-size: 0.88rem; }

/* ---------- Responsive ---------- */
@media (max-width: 720px) {
  .nav { display: none; }
  .hero { padding: 64px 0 56px; }
  section { padding: 60px 0; }
  .grid { grid-template-columns: 1fr; }
  .btn-secondary { margin-left: 0; margin-top: 10px; }
  .site-footer .container { flex-direction: column; align-items: flex-start; }
}