body {
  min-height: 100vh;
}

a {
  text-decoration: none;
  transition: color 0.15s, text-decoration 0.15s;
}

a:hover {
  text-decoration: underline;
  color: #555555 !important;
}

a:hover .navbtn {
  color: #ff0000;
  border-color: #ff0000;
}

.navbtn {
  font-family: "Arial Black", Impact, "Arial Narrow", sans-serif;
  font-size: 11px;
  color: #ffff00;
  border: 1px solid #555555;
  padding: 5px 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  display: inline-block;
  white-space: nowrap;
}

.logo {
  padding: 16px 0;
  line-height: 1.1;
}

/* ── marching icons ── */
@keyframes march-right {
  from { transform: translateX(-200px); }
  to   { transform: translateX(calc(100vw + 200px));  }
}

@keyframes march-left {
  from { transform: translateX(120px); }
  to   { transform: translateX(-100vw);  }
}

.march-r {
  position: fixed;
  left: 0;
  animation: march-right linear infinite;
  pointer-events: none;
}

.march-l {
  position: fixed;
  right: 0;
  animation: march-left linear infinite;
  pointer-events: none;
}