:root {
  --bg: #fafaf9;
  --bg-card: #ffffff;
  --bg-strip: #f4f4f1;
  --border: #e5e4e0;
  --border-strong: #d4d4d0;
  --text: #18181b;
  --text-muted: #6b7280;
  --text-subtle: #a3a3a3;
  --link: #1e3a8a;
  --link-hover: #1e40af;
  --accent: #b45309;

  --tag-ok-bg: #ecfdf5;
  --tag-ok-fg: #065f46;
  --tag-page-bg: #eff6ff;
  --tag-page-fg: #1e40af;
  --tag-rss-bg: #fef3c7;
  --tag-rss-fg: #92400e;
  --tag-lite-bg: #f5f3ff;
  --tag-lite-fg: #5b21b6;
  --tag-warn-bg: #fef2f2;
  --tag-warn-fg: #991b1b;

  --maxw: 1180px;
  --radius: 6px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* Header */
.head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.head h1 {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.02em;
  font-weight: 700;
}
.head .tagline {
  color: var(--text-muted);
  font-size: 14px;
}

.intro {
  margin: 12px 0 20px;
  color: var(--text);
  max-width: 760px;
}
.intro p { margin: 0 0 8px; }

/* Tag legend strip */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px 14px;
  background: var(--bg-strip);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 16px 0 28px;
  font-size: 12.5px;
}
.legend code {
  background: transparent;
  padding: 0;
  font-size: 12px;
}
.legend .sep {
  color: var(--text-subtle);
  user-select: none;
}

/* Section nav (sticky pills) */
.toc {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 32px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.toc a {
  font-size: 12.5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--bg-strip);
  border: 1px solid var(--border);
  color: var(--text);
}
.toc a:hover {
  background: var(--bg-card);
  border-color: var(--link);
  color: var(--link);
  text-decoration: none;
}

/* Sections */
section {
  margin: 0 0 36px;
}
section > h2 {
  margin: 0 0 12px;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.01em;
  scroll-margin-top: 16px;
}
section > p.lead {
  margin: 0 0 14px;
  color: var(--text-muted);
  font-size: 13px;
}

/* Tables */
table {
  border-collapse: collapse;
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
thead th {
  text-align: left;
  background: var(--bg-strip);
  font-weight: 600;
  font-size: 12.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: #fbfbf9; }
tbody td:first-child {
  white-space: nowrap;
  font-weight: 600;
  width: 1%;
  padding-right: 18px;
}
tbody td:nth-child(2) {
  width: 60%;
}

td a {
  display: inline-block;
  margin-right: 2px;
}
td .sep {
  color: var(--text-subtle);
  margin: 0 4px;
  user-select: none;
}

/* Tag pills inside cells */
.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 4px;
  margin-right: 4px;
  vertical-align: 1px;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.tag-ok    { background: var(--tag-ok-bg);    color: var(--tag-ok-fg); }
.tag-page  { background: var(--tag-page-bg);  color: var(--tag-page-fg); }
.tag-rss   { background: var(--tag-rss-bg);   color: var(--tag-rss-fg); }
.tag-lite  { background: var(--tag-lite-bg);  color: var(--tag-lite-fg); }
.tag-warn  { background: var(--tag-warn-bg);  color: var(--tag-warn-fg); }

/* code in cells */
code {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
  font-size: 12.5px;
  background: var(--bg-strip);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Footer */
footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12.5px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

/* Responsive */
@media (max-width: 720px) {
  .wrap { padding: 20px 14px 60px; }
  table, thead, tbody, tr, td, th { display: block; }
  thead { display: none; }
  tbody td:first-child {
    width: auto;
    padding: 10px 14px 4px;
    background: var(--bg-strip);
    border-bottom: 1px solid var(--border);
  }
  tbody td:nth-child(2),
  tbody td:nth-child(3) {
    width: auto;
    padding: 8px 14px;
  }
  tbody tr {
    border-bottom: 1px solid var(--border-strong);
  }
  tbody tr:last-child { border-bottom: 0; }
}