/* =========================
   VTI Certified — Core Styles
   ========================= */

:root {
  --bg-main: #ffffff;
  --text-primary: #1f2933;
  --text-secondary: #4b5563;
  --border-subtle: #e5e7eb;
  --accent-muted: #6b7280;
  --cert-charcoal: #2b2f33;
}

* {
  box-sizing: border-box;
}

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

/* Layout */

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

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

.site-header .container {
  display: flex;
  align-items: center;
  padding: 1rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.site-main section {
  padding-top: 0;
  padding-bottom: 0;
}

.site-main section + section {
  margin-top: 1.75rem;
}

/* Hero */

.hero {
  text-align: center;
  padding-top: 3rem;
  padding-bottom: 2.5rem;
}

.cert-badge {
  margin-bottom: 1.5rem;
}

.cert-badge img {
  display: inline-block;
}

/* Typography */

h1 {
  font-size: 2.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

.lead {
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto;
}

.note {
  font-size: 0.9rem;
  color: var(--accent-muted);
  margin-top: 1rem;
}

/* Lists */

ul,
ol {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.4rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  margin-top: 2rem; /* was effectively larger */
}

.footer-inner {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-inner p {
  margin: 0.25rem 0;
}

.site-footer p {
  margin: 0.25rem 0;
  
}
.site-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}


/* Responsive */

@media (max-width: 640px) {
  h1 {
    font-size: 1.9rem;
  }

  .container {
    padding: 2.5rem 1.25rem;
  }
}