* { box-sizing: border-box; }

.atlas-home {
  margin: 0;
  color: var(--color-ink);
  background: var(--color-paper);
}

.atlas-home-wrap {
  width: min(100%, 1120px);
  margin-inline: auto;
  padding-inline: clamp(18px, 5vw, 64px);
}

.atlas-home > main { padding-block: clamp(18px, 2vw, 28px) 28px; }
.atlas-home-heading {
  padding-block: clamp(24px, 3vw, 48px);
  background: var(--color-cover);
  color: var(--color-cover-text);
}
.atlas-home-heading h1 {
  margin: 0;
  font: 700 clamp(30px, 4.5vw, 62px)/1.18 var(--font-heading);
  text-wrap: balance;
}
.atlas-home-heading p {
  margin: 12px 0 0;
  color: var(--color-cover-accent);
  font-size: clamp(14px, 1.5vw, 17px);
}

.atlas-topics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(10px, 2vw, 22px);
  padding: 0;
  margin: 0;
  list-style: none;
}

.atlas-topic {
  display: grid;
  height: 100%;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-surface);
  box-shadow: 0 2px 4px rgb(36 43 39 / 6%), 0 8px 18px rgb(36 43 39 / 12%);
  color: inherit;
  text-decoration: none;
  transition: border-color 180ms ease, background-color 180ms ease;
}

.atlas-topic:is(:hover, :focus-visible) {
  border-color: var(--color-red-dark);
  background: #fffdf7;
}

.atlas-topic-image {
  display: block;
  width: 100%;
  height: clamp(112px, min(13vw, 22vh), 178px);
  object-fit: cover;
  background: var(--color-map-neutral);
}
.atlas-topic-population { object-position: center 45%; }
.atlas-topic-environment { object-position: center 53%; }

.atlas-topic-copy { padding: clamp(10px, 1.6vw, 18px); }
.atlas-topic-copy h2 {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
  flex-wrap: wrap;
  margin: 0;
  font: 700 clamp(20px, 2.5vw, 32px)/1.2 var(--font-heading);
}
.atlas-topic-copy h2 span {
  position: relative;
  isolation: isolate;
  color: var(--color-red-dark);
  font: 600 20px/1.35 var(--font-body);
}
.atlas-topic-copy h2 span::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 50% auto auto 50%;
  width: 46px;
  height: 46px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: color-mix(in srgb, var(--color-red) 12%, transparent);
  pointer-events: none;
}
.atlas-topic:is([href="economy.html"], [href="ecology.html"]) .atlas-topic-copy h2 span {
  color: var(--color-green);
}
.atlas-topic:is([href="economy.html"], [href="ecology.html"]) .atlas-topic-copy h2 span::before {
  background: color-mix(in srgb, #568461 22%, transparent);
}
.atlas-topic-copy p {
  margin: 6px 0 0;
  color: #525d55;
  font-size: clamp(13px, 1.4vw, 15px);
  line-height: 1.5;
}

.atlas-home-footer {
  margin-top: 24px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
  color: #525d55;
  font-size: 12px;
}
.atlas-home-footer p { margin: 0 0 4px; }
.atlas-home-footer a { color: inherit; text-underline-offset: .2em; }

@media (max-width: 540px) {
  .atlas-topic-image { height: auto; aspect-ratio: 16 / 10; }
  .atlas-topic-copy h2 { font-size: clamp(18px, 5vw, 22px); gap: 4px 6px; }
}

@media (max-width: 320px) {
  .atlas-topics { grid-template-columns: 1fr; }
  .atlas-topic-image { aspect-ratio: 2.5 / 1; }
}