:root {
  --bg: #f5f6f8; --panel: #fff; --ink: #1d2126; --muted: #6b7280;
  --line: #e3e6ea; --accent: #2a6df4; --accentink: #fff;
  --ok-bg:#e6f4ea; --ok:#137333; --warn-bg:#fef7e0; --warn:#8a6d00;
  --alert-bg:#fce8e6; --alert:#c5221f; --unknown-bg:#eceff1; --unknown:#5f6b76;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  font-size: 14px; line-height: 1.6;
}
.topbar {
  display: flex; align-items: center; gap: 20px;
  background: #1f2633; color: #fff; padding: 10px 20px;
}
.topbar .brand { font-weight: 700; }
.topbar .brand small { font-weight: 400; color: #9fb3d1; margin-left: 4px; }
.topbar nav { display: flex; gap: 6px; flex: 1; }
.topbar nav a {
  color: #cdd6e3; text-decoration: none; padding: 6px 12px; border-radius: 6px; font-size: 13px;
}
.topbar nav a:hover { background: #2b3647; color: #fff; }
.topbar nav a.active { background: var(--accent); color: #fff; }
.topbar .user { color: #9fb3d1; font-size: 12px; }
main { max-width: 1000px; margin: 24px auto; padding: 0 16px; }
h1 { font-size: 20px; margin: 0 0 16px; }
h2 { font-size: 15px; margin: 24px 0 8px; color: #333; }
small { color: var(--muted); font-weight: 400; font-size: 13px; }
a { color: var(--accent); }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 20px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; text-align: center; }
.card .num { font-size: 30px; font-weight: 700; }
.card .lbl { color: var(--muted); font-size: 12px; margin-top: 2px; }
.card.ok .num { color: var(--ok); } .card.warn .num { color: var(--warn); }
.card.alert .num { color: var(--alert); } .card.unknown .num { color: var(--unknown); }

table.list, table.kv { width: 100%; background: var(--panel); border: 1px solid var(--line);
  border-radius: 10px; border-collapse: collapse; overflow: hidden; }
table.list th, table.list td, table.kv th, table.kv td { padding: 9px 12px; border-bottom: 1px solid var(--line); text-align: left; }
table.list thead th { background: #f0f2f5; font-size: 12px; color: #4b5563; }
table.list tr:last-child td, table.kv tr:last-child td { border-bottom: none; }
table.kv th { width: 34%; background: #f7f8fa; color: #4b5563; }
td.empty, .empty { color: var(--muted); text-align: center; }
.sum { color: var(--muted); font-size: 12px; }
.det { color: #555; font-size: 12px; font-family: ui-monospace, monospace; }

.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 700; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.alert { background: var(--alert-bg); color: var(--alert); }
.badge.unknown { background: var(--unknown-bg); color: var(--unknown); }

.btn { display: inline-block; padding: 7px 14px; border-radius: 7px; border: 1px solid var(--line);
  background: #fff; color: var(--ink); text-decoration: none; cursor: pointer; font-size: 13px; }
.btn:hover { background: #f0f2f5; }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.danger { color: var(--alert); border-color: #f3c3c0; }
.btn.danger:hover { background: var(--alert-bg); }

.form { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 20px; max-width: 560px; }
.form label { display: block; margin-bottom: 14px; font-size: 13px; color: #374151; }
.form label.check { display: flex; align-items: center; gap: 8px; }
.form input[type=text], .form input:not([type]), .form input[type=email], .form textarea {
  width: 100%; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 7px; font: inherit; }
.form input[readonly] { background: #f3f4f6; color: #6b7280; }
.form .actions { margin-top: 8px; display: flex; gap: 10px; align-items: center; }
.form .inline { display: inline; margin-left: auto; }
.err { color: var(--alert); }
.foot { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 0; }
code { background: #eef1f4; padding: 1px 5px; border-radius: 4px; font-size: 12px; }
@media (max-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); } }