/* Japanese font stack + topic tiles, layered on top of app.css */
:root {
  --f-display: "Unbounded", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", "Meiryo", system-ui, sans-serif;
  --f-body: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", "Meiryo", "Onest", system-ui, sans-serif;
}

.topics { border-top: 1px solid var(--line); }
.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--s-4);
}
.topic {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: var(--s-4);
  border: 1px solid var(--line);
  border-radius: var(--r-2);
  background: var(--surface);
  color: var(--ink);
}
.topic:hover { border-color: var(--line-strong); text-decoration: none; }
.topic .k { font: 500 11px/1 var(--f-mono); letter-spacing: .06em; color: var(--rec); text-transform: uppercase; }
.topic h3 { margin: 0; font: 600 16px/1.3 var(--f-body); }
.topic p { margin: 0; color: var(--muted); font-size: 13px; }