:root {
  --bg: #f3f7f4;
  --panel: #ffffff;
  --ink: #1a4d33;
  --muted: #667;
  --line: #e1ebe5;
  --accent: #2d8a5a;
  --accent-soft: #e5f4ec;
  --accent-deep: #1d6342;
  --warn: #c0392b;
  --warn-soft: #fde9e7;
  --ok: #1f7a4d;
  --ok-soft: #e3f5ec;
  --pending: #b58105;
  --pending-soft: #fff4d5;
  --discord: #5865F2;
}
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", sans-serif;
  background: var(--bg); color: #222; line-height: 1.7;
}

/* 内部資料警告ヘッダー */
.confidential-banner {
  background: var(--warn);
  color: #fff;
  text-align: center;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  position: sticky; top: 0; z-index: 100;
}

header.main {
  background: linear-gradient(135deg, #1d6342 0%, #2d8a5a 60%, #5fb785 100%);
  color: #fff; padding: 28px 32px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}
header.main .crumb { font-size: 12px; letter-spacing: 0.12em; opacity: 0.85; }
header.main h1 { margin: 6px 0 0; font-size: 24px; }
header.main .meta { font-size: 12px; opacity: 0.85; margin-top: 8px; }

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: calc(100vh - 130px);
}

nav.toc {
  background: var(--panel);
  border-right: 1px solid var(--line);
  padding: 24px 16px;
  position: sticky; top: 30px;
  max-height: calc(100vh - 30px);
  overflow-y: auto;
}
nav.toc h3 { margin: 0 0 10px; font-size: 12px; color: var(--muted); letter-spacing: 0.1em; }
nav.toc ol { list-style: none; padding: 0; margin: 0; font-size: 13px; }
nav.toc ol li { margin: 4px 0; }
nav.toc ol li a {
  color: var(--ink); text-decoration: none;
  padding: 6px 10px; display: block; border-radius: 6px;
  transition: background 0.15s;
}
nav.toc ol li a:hover { background: var(--accent-soft); }
nav.toc ol li a.current { background: var(--accent); color: #fff; font-weight: 600; }
nav.toc ol li.sub { padding-left: 14px; }
nav.toc ol li.sub a { font-size: 12px; color: var(--muted); }

main { padding: 28px 32px 80px; max-width: 1040px; }

section {
  background: var(--panel);
  border-radius: 10px;
  padding: 24px 28px;
  margin-bottom: 24px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
section h2 {
  margin: 0 0 16px; color: var(--ink); font-size: 20px;
  padding-bottom: 10px; border-bottom: 2px solid var(--accent-soft);
}
section h3 { margin: 24px 0 10px; color: var(--ink); font-size: 16px; }
section h4 { margin: 18px 0 6px; color: var(--ink); font-size: 14px; }
section p { margin: 8px 0; font-size: 14px; }
section ul, section ol { margin: 6px 0; padding-left: 22px; font-size: 14px; }
section li { margin: 4px 0; }

.badge {
  display: inline-block; padding: 2px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
  vertical-align: middle;
}
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.pending { background: var(--pending-soft); color: var(--pending); }
.badge.info { background: var(--accent-soft); color: var(--accent); }
.badge.discord { background: #eef0fe; color: var(--discord); }

.card {
  background: #fafbfd;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
  margin: 12px 0;
}
.card.warn { background: var(--warn-soft); border-color: #f3b8b8; color: #6a2020; }
.card.ok { background: var(--ok-soft); border-color: #b6dec4; }
.card.info { background: var(--accent-soft); border-color: #c8def4; }

table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13px; }
table th, table td {
  border: 1px solid var(--line);
  padding: 9px 12px;
  text-align: left; vertical-align: top;
}
table th { background: var(--accent-soft); color: var(--ink); font-weight: 600; }
table tr:nth-child(even) td { background: #fafbfd; }
table td.center, table th.center { text-align: center; }

code {
  background: #f1f4f9;
  padding: 2px 7px;
  border-radius: 4px;
  font-family: "SF Mono","Menlo","Consolas",monospace;
  font-size: 12px; color: #2a3a55;
}
pre {
  background: #2a3a55;
  color: #e3eaf2;
  padding: 16px 18px;
  border-radius: 8px;
  font-size: 12px; overflow-x: auto; line-height: 1.6;
  font-family: "SF Mono","Menlo",monospace;
}
a { color: var(--accent); }

/* placeholder for email & ID */
.ph {
  background: #fff4d5; color: #6a4f00;
  padding: 1px 6px; border-radius: 4px;
  font-family: "SF Mono","Menlo",monospace;
  font-size: 12px; font-weight: 600;
}

/* nav cards on index */
.quick {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 16px 0;
}
.quick a {
  background: var(--accent-soft); color: var(--accent);
  padding: 16px; border-radius: 8px;
  text-decoration: none; font-weight: 600; font-size: 13px;
  border: 1px solid var(--accent-soft);
  transition: all 0.15s;
}
.quick a:hover {
  background: #cce6d7;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(45,138,90,0.18);
}
.quick a .num {
  display: block;
  font-size: 10px; letter-spacing: 0.1em;
  color: var(--muted); margin-bottom: 4px;
}
.quick a .ttl { display: block; font-size: 15px; margin-bottom: 4px; }
.quick a .desc { display: block; font-size: 11px; color: var(--muted); font-weight: 400; }

.note { font-size: 12px; color: var(--muted); margin-top: 6px; }

footer.site {
  background: #1d3a2c; color: #c2d9ce;
  padding: 24px 32px; font-size: 12px; text-align: center;
}
footer.site a { color: #8fd0aa; }

/* responsive */
@media (max-width: 880px) {
  .layout { grid-template-columns: 1fr; }
  nav.toc { position: static; max-height: none; border-right: 0; border-bottom: 1px solid var(--line); }
  main { padding: 18px; }
}