:root {
  --page-bg: black;
  --card-bg: #ffffff;
  --purple: white;
  --purple-hover: white;
  --radius-xl: 28px;
}

body {
  background: var(--page-bg);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

.top-nav {
  width: 95%;
  margin: 0 auto;
  display: flex;
  justify-content: flex-end;
  gap: 28px;
}

.nav-link-animated {
  position: relative;
  text-decoration: none;
  color: var(--purple);
  font-weight: 600;
  font-size: 18px;
  padding-bottom: 6px;
}

.nav-link-animated::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 100%;
  background: var(--purple);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.nav-link-animated:hover::after,
.nav-link-animated:focus-visible::after {
  transform: scaleX(1);
}

.nav-link-animated:hover,
.nav-link-animated:focus-visible {
  color: var(--purple-hover);
}

.footprints-card {
  width: 95%;
  margin: 0 auto;
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: 22px;
}

.page-title {
  font-size: 44px;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.hint-text {
  color: #555;
  font-size: 14px;
}

.map-shell {
  height: 520px;
  border-radius: 18px;
  overflow: hidden;
}