/* Public site https://inkmel.app (T-144 D9): served as /site.css (CSP style-src 'self'). */
:root {
  color-scheme: light dark;
  --text: #1f2328;
  --muted: #59636e;
  --background: #ffffff;
  --surface: #f6f8fa;
  --border: #d1d9e0;
  --link: #0b5cad;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e6edf3;
    --muted: #9198a1;
    --background: #0d1117;
    --surface: #151b23;
    --border: #3d444d;
    --link: #6cb6ff;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0 auto;
  max-width: 48rem;
  padding: 0 1rem 3rem;
  background: var(--background);
  color: var(--text);
  font-family:
    system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    'Helvetica Neue',
    Arial,
    sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  overflow-wrap: break-word;
}

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

header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
}

header .brand {
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

header nav a {
  margin-left: 1rem;
}

header nav a:first-child {
  margin-left: 0;
}

h1 {
  font-size: 1.75rem;
  line-height: 1.25;
  margin: 2rem 0 0.5rem;
}

h2 {
  font-size: 1.3rem;
  margin: 2rem 0 0.5rem;
}

h3 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.5rem;
}

.version {
  color: var(--muted);
  margin-top: 0;
}

/* Permanent address and previous versions of a text (T-133 D3). */
.versions {
  color: var(--muted);
  font-size: 0.9rem;
}

/* Banner of an archived version (T-133 D4). */
.archive {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--muted);
  border-radius: 4px;
  padding: 0.75rem 1rem;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--surface);
  padding: 0.1em 0.3em;
  border-radius: 4px;
}

blockquote {
  margin: 1rem 0;
  padding: 0 1rem;
  border-left: 4px solid var(--border);
  color: var(--muted);
}

table {
  display: block;
  max-width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

th,
td {
  border: 1px solid var(--border);
  padding: 0.4rem 0.6rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2rem 0;
}

ul.texts {
  padding-left: 1.25rem;
}

ul.texts li {
  margin-bottom: 0.75rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}