/* =============================================
   Inferential Data LLC — Shared Styles
   ============================================= */

:root {
  --bg:        #0D1B2A;
  --bg-mid:    #122133;
  --bg-card:   #1A2E42;
  --accent:    #3AADFF;
  --accent2:   #00D4A0;
  --text:      #E8F0F8;
  --text-muted:#A0B8CC;
  --border:    #1E3A52;
  --font:      'Inter', 'Segoe UI', Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.7;
}

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

/* ---- NAV ---- */
nav {
  background: rgba(13,27,42,0.97);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 100;
  padding: 0 2rem;
  display: flex; align-items: center; gap: 2rem;
  backdrop-filter: blur(8px);
}

nav .logo {
  font-size: 1.2rem; font-weight: 700;
  color: var(--accent); letter-spacing: 0.03em;
  padding: 1.1rem 0;
  white-space: nowrap;
}

nav ul {
  display: flex; flex-wrap: wrap; gap: 0.2rem;
  list-style: none; margin-left: auto;
}

nav ul li a {
  display: block; padding: 1.1rem 0.9rem;
  color: var(--text-muted); font-size: 0.95rem;
  font-weight: 500; transition: color 0.2s;
}
nav ul li a:hover,
nav ul li a.active { color: var(--accent); text-decoration: none; }

/* Hamburger button — hidden on desktop */
.nav-toggle {
  display: none;
  margin-left: auto;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.6rem;
  color: var(--text);
  font-size: 1.6rem;
  line-height: 1;
}

/* ---- HERO ---- */
.hero {
  padding: 5rem 2rem 4rem;
  max-width: 960px; margin: 0 auto;
  text-align: center;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800; line-height: 1.2;
  color: #fff; margin-bottom: 1.2rem;
}
.hero h1 span { color: var(--accent); }
.hero p {
  font-size: 1.15rem; color: var(--text-muted);
  max-width: 700px; margin: 0 auto 2rem;
}
.hero .cta-row {
  display: flex; flex-wrap: wrap; gap: 1rem;
  justify-content: center;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-block; padding: 0.75rem 1.8rem;
  border-radius: 6px; font-weight: 600; font-size: 0.95rem;
  cursor: pointer; transition: opacity 0.2s, transform 0.15s;
}
.btn:hover { opacity: 0.88; transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: var(--accent); color: #0D1B2A; }
.btn-outline  { border: 2px solid var(--accent); color: var(--accent); }

/* ---- SECTIONS ---- */
section { padding: 4rem 2rem; }
section.alt { background: var(--bg-mid); }

.container { max-width: 1060px; margin: 0 auto; }

.section-label {
  font-size: 0.8rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--accent2); margin-bottom: 0.5rem; font-weight: 600;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700;
  color: #fff; margin-bottom: 1rem;
}
.section-sub {
  font-size: 1.05rem; color: var(--text-muted);
  max-width: 680px; margin-bottom: 2.5rem;
}

/* ---- CARDS GRID ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.8rem;
}
.card-icon { font-size: 1.8rem; margin-bottom: 0.8rem; }
.card h3 { font-size: 1.1rem; color: #fff; margin-bottom: 0.5rem; }
.card p  { font-size: 0.95rem; color: var(--text-muted); }

/* ---- LIST WITH CHECK ---- */
.check-list { list-style: none; padding: 0; }
.check-list li {
  padding: 0.35rem 0 0.35rem 1.8rem;
  position: relative; font-size: 0.97rem; color: var(--text-muted);
}
.check-list li::before {
  content: "✓";
  position: absolute; left: 0;
  color: var(--accent2); font-weight: 700;
}

/* ---- OUTCOME BOX ---- */
.outcome-box {
  background: var(--bg-card); border-left: 4px solid var(--accent2);
  border-radius: 0 8px 8px 0; padding: 1.4rem 1.8rem;
  margin-top: 1.5rem;
}
.outcome-box h4 { color: var(--accent2); margin-bottom: 0.6rem; font-size: 0.9rem; letter-spacing: 0.1em; text-transform: uppercase; }

/* ---- TWO-COL ---- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }

/* ---- STAT ROW ---- */
.stat-row { display: flex; flex-wrap: wrap; gap: 2rem; margin: 2rem 0; }
.stat { text-align: center; }
.stat-num { font-size: 2.4rem; font-weight: 800; color: var(--accent); }
.stat-label { font-size: 0.85rem; color: var(--text-muted); }

/* ---- CTA BAND ---- */
.cta-band {
  background: linear-gradient(135deg, #0f2d46 0%, #0a1e30 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 2rem; text-align: center;
}
.cta-band h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); color: #fff; margin-bottom: 1rem; }
.cta-band p  { color: var(--text-muted); margin-bottom: 1.8rem; font-size: 1.05rem; }

/* ---- FOOTER ---- */
footer {
  background: #080f17;
  border-top: 1px solid var(--border);
  padding: 2.5rem 2rem;
  text-align: center;
  color: var(--text-muted); font-size: 0.9rem;
}
footer a { color: var(--text-muted); }
footer a:hover { color: var(--accent); }
footer .footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 1.5rem; margin-bottom: 1rem; }

/* ---- PAGE HEADER ---- */
.page-header {
  background: linear-gradient(160deg, #122133 0%, #0D1B2A 100%);
  border-bottom: 1px solid var(--border);
  padding: 3.5rem 2rem 3rem;
  text-align: center;
}
.page-header h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); color: #fff; font-weight: 800; margin-bottom: 0.6rem; }
.page-header p  { color: var(--text-muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto; }

/* ============================================
   MOBILE RESPONSIVE — max-width: 768px
   ============================================ */
@media (max-width: 768px) {

  body { font-size: 16px; }

  /* Nav: show hamburger, hide links by default */
  nav {
    flex-wrap: wrap;
    padding: 0 1.2rem;
    gap: 0;
  }

  nav .logo { padding: 0.9rem 0; flex: 1; }

  .nav-toggle { display: block; }

  nav ul {
    display: none;
    flex-direction: column;
    width: 100%;
    border-top: 1px solid var(--border);
    margin-left: 0;
    gap: 0;
  }

  /* Show menu when nav has .open class */
  nav.open ul { display: flex; }

  nav ul li { width: 100%; }
  nav ul li a {
    padding: 0.85rem 1rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }

  /* Hero */
  .hero { padding: 2.5rem 1.2rem 2rem; }
  .hero p { font-size: 1rem; }
  .hero .cta-row { flex-direction: column; align-items: center; }
  .hero .cta-row .btn { width: 100%; max-width: 300px; text-align: center; }

  /* Sections */
  section { padding: 2.5rem 1.2rem; }

  /* Two-col becomes single column */
  .two-col { grid-template-columns: 1fr; gap: 1.5rem; }

  /* Cards: single column on small screens */
  .cards { grid-template-columns: 1fr; }

  /* Stat row: 2 across */
  .stat-row { gap: 1.2rem; justify-content: center; }
  .stat { flex: 0 0 calc(50% - 0.6rem); }

  /* CTA band */
  .cta-band { padding: 2.5rem 1.2rem; }
  .cta-band .btn { width: 100%; max-width: 300px; }

  /* Footer links: tighter */
  footer .footer-links { gap: 0.8rem; }

  /* Page header */
  .page-header { padding: 2.5rem 1.2rem 2rem; }

  /* Outcome box columns fix */
  .check-list[style*="columns"] { columns: 1 !important; }
}

/* ============================================
   SMALL MOBILE — max-width: 400px
   ============================================ */
@media (max-width: 400px) {
  .stat { flex: 0 0 100%; }
  nav .logo span { font-size: 0.95rem !important; }
}