:root {
  --paper: #fbfaf7;
  --card: #ffffff;
  --ink: #18211f;
  --muted: #63706b;
  --line: #e3ddd1;
  --accent: #1d6f86;
  --accent-2: #47734b;
  --sun: #d88b2d;
  --clay: #b9573f;
  --chip: #eef2f0;
  --shadow: rgba(30, 25, 12, 0.08);
  --serif: ui-serif, Georgia, "Times New Roman", serif;
  --sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --maxw: 960px;
}
html.dark {
  --paper: #10151a;
  --card: #171e24;
  --ink: #e8eeeb;
  --muted: #9aa8a2;
  --line: #26303a;
  --accent: #58b6cf;
  --accent-2: #7fb583;
  --chip: #1d262d;
  --shadow: rgba(0, 0, 0, 0.4);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--paper) 85%, transparent);
  position: sticky; top: 0; z-index: 20; backdrop-filter: saturate(1.4) blur(8px);
}
.site-header .bar {
  display: flex; align-items: center; gap: 16px;
  padding: 12px 20px; max-width: var(--maxw); margin: 0 auto;
}
.brand { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; color: var(--ink); }
.brand:hover { text-decoration: none; }
.nav { display: flex; gap: 14px; flex-wrap: wrap; margin-left: auto; align-items: center; }
.nav a { color: var(--muted); font-size: 0.9rem; }
.nav a:hover { color: var(--ink); }
.theme-toggle {
  background: var(--chip); border: 1px solid var(--line); color: var(--ink);
  border-radius: 999px; padding: 5px 12px; cursor: pointer; font-size: 0.85rem;
}

/* Hero */
.hero { padding: 56px 0 28px; }
.hero h1 { font-family: var(--serif); font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.1; margin: 0 0 12px; letter-spacing: -0.02em; }
.hero p { font-size: 1.1rem; color: var(--muted); max-width: 62ch; margin: 0; }

/* Section */
.section { padding: 22px 0; }
.section h2 { font-family: var(--serif); font-size: 1.5rem; margin: 0 0 4px; letter-spacing: -0.01em; }
.section .blurb { color: var(--muted); margin: 0 0 18px; }
.cat-emoji { margin-right: 8px; }

/* Grid + cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px; box-shadow: 0 1px 3px var(--shadow); display: flex; flex-direction: column; gap: 10px;
}
.card h3 { margin: 0; font-size: 1.1rem; line-height: 1.25; }
.card h3 a { color: var(--ink); }
.card .summary { color: var(--muted); font-size: 0.94rem; margin: 0; flex: 1; }
.meta-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: 0.8rem; color: var(--muted); }
.chip {
  background: var(--chip); border: 1px solid var(--line); border-radius: 999px;
  padding: 2px 10px; font-size: 0.78rem; color: var(--muted); white-space: nowrap;
}
.chip.cat { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.status { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600; }
.status.live { color: var(--accent-2); }
.status.planned { color: var(--sun); }
.card-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 6px; background: var(--accent); color: #fff;
  border-radius: 999px; padding: 7px 15px; font-size: 0.88rem; font-weight: 600;
}
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn.ghost { background: transparent; color: var(--accent); border: 1px solid var(--accent); }
.btn[aria-disabled="true"] { background: var(--chip); color: var(--muted); pointer-events: none; }

/* Detail page */
.detail-head { padding: 40px 0 10px; }
.breadcrumb { font-size: 0.85rem; color: var(--muted); margin-bottom: 14px; }
.breadcrumb a { color: var(--muted); }
.detail-head h1 { font-family: var(--serif); font-size: clamp(1.7rem, 4.5vw, 2.6rem); margin: 0 0 10px; letter-spacing: -0.02em; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 14px 0; }
.prose { font-size: 1.05rem; max-width: 68ch; }
.prose p { color: var(--ink); }
.related-block { margin: 34px 0; padding-top: 20px; border-top: 1px solid var(--line); }
.related-block h2 { font-family: var(--serif); font-size: 1.2rem; margin: 0 0 12px; }
.related-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.related-list li a { display: flex; gap: 8px; align-items: baseline; }
.related-list .r-cat { font-size: 0.78rem; color: var(--muted); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 50px; padding: 26px 0 60px; color: var(--muted); font-size: 0.85rem; }
.site-footer a { color: var(--muted); }
.site-footer .foot-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 8px; }

/* Graph */
#graph-canvas { width: 100%; height: 70vh; display: block; border: 1px solid var(--line); border-radius: 14px; background: var(--card); }
.graph-legend { display: flex; gap: 14px; flex-wrap: wrap; margin: 14px 0; font-size: 0.85rem; color: var(--muted); }
.legend-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 6px; vertical-align: middle; }