:root {
  color-scheme: light dark;
  --fg: #1a1a1a;
  --bg: #fdfdfd;
  --muted: #666;
  --link: #0b5fff;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #ddd;
    --bg: #16181d;
    --muted: #999;
    --link: #7aa7ff;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0 auto;
  max-width: 42rem;
  padding: 1rem;
  font-family: system-ui, -apple-system, "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  line-height: 1.8;
  color: var(--fg);
  background: var(--bg);
}

.reader-header h1 {
  font-size: 1.5rem;
  line-height: 1.4;
  margin: 0.5rem 0;
}
.reader-header a {
  color: inherit;
  text-decoration: none;
}
.meta {
  color: var(--muted);
  margin: 0.2rem 0;
  font-size: 0.9rem;
}

.reader-content img,
.reader-content video,
.reader-content svg {
  display: none; /* text only */
}
.reader-content pre {
  overflow-x: auto;
  padding: 0.75rem;
  background: rgba(127, 127, 127, 0.12);
  border-radius: 6px;
}
.reader-content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}
.reader-content table {
  border-collapse: collapse;
  max-width: 100%;
}
.reader-content td,
.reader-content th {
  border: 1px solid rgba(127, 127, 127, 0.4);
  padding: 0.25rem 0.5rem;
}

/* toolbar: small, muted, non-intrusive */
.reader-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
  margin: 0.5rem 0;
}
.reader-toolbar a {
  color: var(--muted);
  text-decoration: none;
}
.reader-toolbar a.active {
  color: var(--fg);
  font-weight: 600;
  text-decoration: underline dotted;
}

.reader-text {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: inherit;
}

.reader-footer,
.reader-footer a {
  color: var(--muted);
  font-size: 0.85rem;
}

.reader-content a.direct-link {
  font-size: 0.7em;
  vertical-align: super;
  margin-left: 0.15em;
  text-decoration: none;
  color: var(--muted);
}

a {
  color: var(--link);
}