body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1a1a1a;
  background: #ffffff;
  margin: 0;
  line-height: 1.6;
}

/* Header */
/* Navigation */

.site-nav {
  border-bottom: 1px solid #e6e6e6;
  background: #ffffff;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand a {
  font-weight: 600;
  text-decoration: none;
  color: #1a1a1a;
  white-space: nowrap;
}

.nav-links {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.75rem;
  margin: 0;
  padding: 0;
}

.nav-links li {
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: #444;
  font-size: 0.95rem;
}

.nav-links a:hover {
  text-decoration: underline;
}

.site-header {
  position: relative;
  overflow: hidden;
  padding: 3rem 1.5rem;
  border-bottom: 1px solid #e6e6e6;
  text-align: center;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("/assets/img/grey-swirl.png") center / 420px no-repeat;
  opacity: 0.08;
  pointer-events: none;
}

.subtitle {
  max-width: 700px;
  margin: 0.5rem auto 0;
  color: #555;
}

/* Layout */

.container {
  max-width: 900px;
  margin: 3rem auto;
  padding: 0 1.5rem;
}

h1,
h2 {
  font-weight: 600;
}

ul,
ol {
  margin-left: 1.5rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid #e6e6e6;
  background: #ffffff;
  font-size: 0.85rem;
  color: #666;
  text-align: center;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  text-align: center; 
}

.site-footer p {
  margin: 0.4rem 0;
}

/* Links & Notes */

a {
  color: #1a1a1a;
  text-decoration: underline;
}

.note {
  font-size: 0.95rem;
  color: #555;
}

@media (max-width: 640px) {
  .nav-inner {
    flex-direction: column;
    gap: 0.75rem;
  }
  
}
.footer-note {
  max-width: 780px;
  margin: 0.4rem auto;
}