body {
  margin: 0;
  padding: 0;
  background: #ffffff;
  color: #000000;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
}

/* TOP NAV BANNER */
.topbar{
  position: sticky;
  top: 0;
  z-index: 999;
  background: #fff;
  border-bottom: 1px solid #000; /* line BELOW nav */
  padding: 16px 22px;            /* controls top bar height */
}

.topnav{
  max-width: 760px;              /* match main width */
  margin: 0 auto;
  display: flex;
  justify-content: flex-end;     /* right side */
  gap: 22px;
  flex-wrap: wrap;
}

.topnav a{
  text-decoration: none;         /* no underline */
  color: #000;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;           /* makes hover underline look clean */
}

.topnav a:hover{
  border-bottom: 1px solid #000;
}

.topnav a[aria-current="page"]{
  font-weight: 700;
}

/* MAIN LAYOUT */
main {
  max-width: 760px;
  padding: 72px 22px;
  margin: 0 auto;
}

h1 {
  font-size: 2.2rem;
  margin: 0 0 0.75rem 0;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.2rem;
  margin-top: 2.2rem;
  margin-bottom: 0.6rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0 0 1.1rem 0;
}

ul {
  margin: 0.5rem 0 1.3rem 1.2rem;
  padding: 0;
}

li {
  margin-bottom: 0.6rem;
}

/* FOOTER NAV (optional, if you're keeping the bottom links) */
.footerbar{
  max-width: 760px;
  margin: 64px auto 0 auto;
  padding: 0 22px 36px 22px;
}

.footernav{
  border-top: 1px solid #000;
  padding-top: 16px;
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.footernav a{
  text-decoration: none;
  color: #000;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.footernav a:hover{
  border-bottom: 1px solid #000;
}

/* IMPORTANT:
   If any old pages still use a plain <nav> (without topnav/footernav),
   this prevents the old "nav section" look from coming back. */
nav:not(.topnav):not(.footernav){
  margin: 0;
  padding: 0;
  border: 0;
}
nav:not(.topnav):not(.footernav) a{
  margin: 0;
}

/* Mobile */
@media (max-width: 520px){
  .topnav, .footernav{
    gap: 14px;
  }
}