/* LeanDFumt Docs — shared stylesheet
   Author: Nobuki Fujimoto / Rei-AIOS Project, 2026. Apache-2.0. */

:root {
  --fg: #1a1a1a;
  --muted: #666;
  --bg: #fff;
  --code-bg: #f4f4f4;
  --accent: #0057b8;
  --border: #e0e0e0;
  --err-tint: rgba(220, 50, 50, .06);
  --err-line: #d33;
  --ok-tint:  rgba(50, 180, 100, .06);
  --ok-line:  #2a7;
  --note-tint: rgba(160, 90, 240, .06);
  --note-line: #a5f;
}
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e0e0e0;
    --muted: #999;
    --bg: #161616;
    --code-bg: #262626;
    --accent: #6bb2ff;
    --border: #333;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
               "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
  color: var(--fg);
  background: var(--bg);
  max-width: 820px;
  margin: 2em auto;
  padding: 0 1.2em;
  line-height: 1.7;
}

h1 {
  font-size: 1.55em;
  border-bottom: 2px solid var(--accent);
  padding-bottom: .3em;
  margin-bottom: .2em;
}
h1 .sub {
  display: block;
  font-size: .6em;
  color: var(--muted);
  font-weight: normal;
  margin-top: .3em;
}
h2 {
  font-size: 1.15em;
  margin-top: 2em;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: .2em;
}
h3 {
  font-size: .95em;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-top: 1.5em;
  margin-bottom: .3em;
}

code, pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  background: var(--code-bg);
  border-radius: 3px;
}
code { padding: .1em .35em; font-size: .93em; }
pre {
  padding: 1em;
  overflow-x: auto;
  border: 1px solid var(--border);
  font-size: .9em;
  line-height: 1.5;
}
pre code { background: none; padding: 0; font-size: 1em; }

.block {
  padding: .8em 1.1em;
  margin: 1em 0;
  border-left: 3px solid;
  border-radius: 0 3px 3px 0;
}
.block-error { border-color: var(--err-line);  background: var(--err-tint); }
.block-fix   { border-color: var(--ok-line);   background: var(--ok-tint); }
.block-note  { border-color: var(--note-line); background: var(--note-tint); }
.block > :first-child { margin-top: 0; }
.block > :last-child  { margin-bottom: 0; }

a { color: var(--accent); }
a:hover { text-decoration: underline; }

nav.crumbs {
  color: var(--muted);
  font-size: .9em;
  margin-bottom: .5em;
}
nav.crumbs a { color: inherit; }

ul.error-list { list-style: none; padding: 0; }
ul.error-list li {
  margin: 1em 0;
  padding: 1em 1.2em;
  border: 1px solid var(--border);
  border-radius: 4px;
  transition: border-color .15s;
}
ul.error-list li:hover { border-color: var(--accent); }
ul.error-list h3 {
  margin: 0 0 .3em 0;
  color: var(--fg);
  text-transform: none;
  letter-spacing: normal;
  font-size: 1em;
  font-weight: 600;
}
ul.error-list h3 a { text-decoration: none; }
ul.error-list h3 a:hover { text-decoration: underline; }
ul.error-list .msg {
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: .85em;
  color: var(--muted);
  margin: .3em 0;
}
ul.error-list p { margin: .3em 0; font-size: .92em; }

footer {
  margin-top: 3em;
  padding-top: 1em;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .88em;
  line-height: 1.6;
}
footer a { color: inherit; text-decoration: underline; }