/* Leaving a Light On — quiet, typographic, no JS. */

:root {
  --bg: #faf7f2;
  --ink: #26221c;
  --muted: #6f675c;
  --rule: #e5dccd;
  --accent: #7a5230;
  --accent-soft: #b98a54;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16130f;
    --ink: #e9e2d6;
    --muted: #9a8f7f;
    --rule: #322c24;
    --accent: #d8a15e;
    --accent-soft: #8a6a42;
  }
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: 41rem;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 5rem;
}

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--accent-soft); }

.site-nav {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  gap: 1.25rem;
  padding-top: 1rem;
}
.site-nav a { color: var(--muted); text-decoration: none; }
.site-nav a:hover { color: var(--accent); }
.site-nav .here { color: var(--ink); }

h1 {
  font-size: 2.1rem;
  line-height: 1.2;
  font-weight: 600;
  margin: 3.5rem 0 0.5rem;
  letter-spacing: -0.01em;
}
.subtitle { font-size: 1.15rem; color: var(--muted); margin: 0 0 0.4rem; font-style: italic; }
.dateline {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 2.75rem;
}

h2 { font-size: 1.35rem; font-weight: 600; margin: 3rem 0 0.75rem; }

.note { margin: 0 0 1.2rem; }

.letter-label {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 4rem 0 1rem;
}
.letter-label strong { color: var(--ink); font-weight: 600; }

.letter-text {
  white-space: pre-wrap;
  overflow-wrap: break-word;
  padding-left: 1.1rem;
  border-left: 2px solid var(--rule);
}

.letter-source {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  color: var(--muted);
  margin: 1.1rem 0 0;
}

.status {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  color: var(--muted);
  border-left: 2px solid var(--accent-soft);
  padding-left: 1.1rem;
  margin: 1.8rem 0 0;
}

.asterism {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  letter-spacing: 0.5em;
  margin: 3.25rem 0;
  user-select: none;
}

/* Transcripts */
.turn { margin: 1.6rem 0; }
.speaker {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.25rem;
}
.turn-text { white-space: pre-wrap; overflow-wrap: break-word; }
.turn.assistant .turn-text {
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent-soft);
}
.turn.assistant .speaker { color: var(--accent); }

.convo-meta {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.82rem;
  color: var(--muted);
  margin: -0.4rem 0 1.5rem;
}

/* Provenance */
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.95rem;
  margin: 1rem 0 1.5rem;
}
th, td {
  text-align: left;
  vertical-align: top;
  padding: 0.45rem 0.9rem 0.45rem 0;
  border-bottom: 1px solid var(--rule);
}
th {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}
code, .hash {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.83em;
  overflow-wrap: anywhere;
}
.hash-block {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.78rem;
  color: var(--muted);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  border-left: 2px solid var(--rule);
  padding-left: 1.1rem;
  margin: 1rem 0 1.5rem;
}

blockquote {
  margin: 1.2rem 0;
  padding-left: 1.1rem;
  border-left: 2px solid var(--rule);
  color: var(--ink);
  white-space: pre-wrap;
}

footer {
  margin-top: 5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--rule);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.8rem;
  color: var(--muted);
}
footer a { color: var(--muted); }

@media print {
  .site-nav { display: none; }
  body { font-size: 11pt; }
}