/* Self-hosted, no CDN, no framework. */
:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #1c2024;
  --muted: #666d75;
  --line: #d8dde3;
  --accent: #1f5fa8;
  --ok: #1a7f46;
  --ok-bg: #e7f5ed;
  --warn: #9a6400;
  --warn-bg: #fdf3e0;
  --fail: #b3261e;
  --fail-bg: #fdecea;
  --mono: ui-monospace, "SFMono-Regular", "Menlo", "Consolas", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--bg);
}

main { max-width: 1120px; margin: 0 auto; padding: 24px 20px 64px; }

/* --- top bar --- */
.topbar {
  display: flex; align-items: center; gap: 20px;
  padding: 12px 20px; background: var(--panel); border-bottom: 1px solid var(--line);
}
.topbar .brand { font-weight: 700; text-decoration: none; color: var(--ink); }
.topbar nav { display: flex; gap: 16px; flex: 1; }
.topbar nav a { color: var(--accent); text-decoration: none; }
.topbar nav a:hover { text-decoration: underline; }
.topbar .who { color: var(--muted); margin-right: 8px; }

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 17px; margin: 24px 0 8px; }

.row-between { display: flex; align-items: center; justify-content: space-between; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.nowrap { white-space: nowrap; }
.mono, code, pre { font-family: var(--mono); font-size: 12.5px; }
pre { white-space: pre-wrap; word-break: break-word; margin: 6px 0 0; }

/* --- cards and forms --- */
.card {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 24px;
}
.card.narrow { max-width: 420px; margin: 56px auto; }

fieldset {
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 8px; padding: 18px 20px; margin: 0 0 20px;
}
legend { font-weight: 600; padding: 0 6px; }

label { display: block; font-weight: 600; margin: 14px 0 4px; font-size: 14px; }
label.check { font-weight: 400; display: flex; gap: 8px; align-items: flex-start; }
.danger-label { color: var(--fail); font-weight: 600; }

input, select, textarea {
  width: 100%; padding: 8px 10px; font: inherit;
  border: 1px solid var(--line); border-radius: 6px; background: #fff; color: var(--ink);
}
input[type="checkbox"] { width: auto; }
textarea { font-family: var(--mono); font-size: 13px; }
select[multiple] { height: auto; font-family: var(--mono); font-size: 13px; }
input:focus, select:focus, textarea:focus, button:focus {
  outline: 2px solid var(--accent); outline-offset: 1px;
}

.hint { color: var(--muted); font-size: 13px; margin: 4px 0 0; }
.field-error { color: var(--fail); font-size: 13px; margin: 4px 0 0; font-weight: 600; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0 20px; }
.form-actions { display: flex; gap: 10px; align-items: center; margin-top: 8px; }
.list-actions { display: flex; gap: 8px; align-items: center; margin: 8px 0; flex-wrap: wrap; }
.list-actions input[type="search"] { width: auto; flex: 1; min-width: 160px; }
.inline { display: inline; }
.inline-form { display: flex; gap: 8px; align-items: center; margin-bottom: 14px; }
.inline-form select { width: auto; }
.test-row { display: flex; gap: 12px; align-items: center; margin-top: 18px; }

/* --- buttons --- */
button, .button {
  display: inline-block; padding: 7px 12px; font: inherit; font-size: 14px;
  border: 1px solid var(--line); border-radius: 6px; background: #fff;
  color: var(--ink); cursor: pointer; text-decoration: none; white-space: nowrap;
}
button:hover, .button:hover { background: #eef1f5; }
.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.primary:hover { background: #18497f; }
.danger { color: var(--fail); border-color: #e5b4b0; }
.danger:hover { background: var(--fail-bg); }
button.link {
  border: none; background: none; color: var(--accent);
  text-decoration: underline; padding: 0;
}

/* --- tables --- */
table.grid { width: 100%; border-collapse: collapse; background: var(--panel); }
table.grid th, table.grid td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line);
  vertical-align: top;
}
table.grid th { background: #eef1f5; font-size: 13px; }
table.grid td.actions { display: flex; flex-wrap: wrap; gap: 6px; }

/* --- status chips and banners --- */
.pill {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
}
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }
.pill.fail { background: var(--fail-bg); color: var(--fail); }
.pill.off { background: #eceef1; color: var(--muted); }
.pill.skip { background: #eceef1; color: var(--muted); }

.banner {
  padding: 10px 14px; border-radius: 6px; margin: 0 0 16px;
  border: 1px solid transparent; font-size: 14px;
}
.banner.ok { background: var(--ok-bg); border-color: #b7e0c7; color: var(--ok); }
.banner.warn { background: var(--warn-bg); border-color: #f0d49a; color: var(--warn); }
.banner.fail { background: var(--fail-bg); border-color: #f2bdb8; color: var(--fail); }
.banner.info { background: #e9f1fb; border-color: #bcd6f2; color: var(--accent); }

/* --- connection test results --- */
ul.checks { list-style: none; margin: 12px 0 0; padding: 0; }
ul.checks li {
  display: grid; grid-template-columns: 22px 1fr; gap: 10px;
  padding: 8px 0; border-top: 1px solid var(--line);
}
ul.checks .mark { font-weight: 700; font-size: 16px; line-height: 1.3; }
ul.checks .mark.ok { color: var(--ok); }
ul.checks .mark.warn { color: var(--warn); }
ul.checks .mark.fail { color: var(--fail); }
ul.checks .mark.skip { color: var(--muted); }
ul.checks .label { font-weight: 600; }
ul.checks .detail { font-size: 13.5px; }
ul.checks .fix { font-size: 13px; color: var(--muted); margin-top: 2px; }

.copy-row { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 6px; }
.copy-row input, .copy-row textarea { font-family: var(--mono); font-size: 13px; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181c; --panel: #1d2127; --ink: #e6e9ed; --muted: #9aa3ad;
    --line: #2e343c; --accent: #6aa9f0;
    --ok: #65d196; --ok-bg: #163024; --warn: #e3b765; --warn-bg: #332715;
    --fail: #f08b84; --fail-bg: #38201e;
  }
  input, select, textarea { background: #14171b; color: var(--ink); }
  button, .button { background: #262c34; color: var(--ink); }
  button:hover, .button:hover { background: #30373f; }
  .primary { background: var(--accent); color: #0c1116; border-color: var(--accent); }
  table.grid th { background: #232931; }
  .pill.off, .pill.skip { background: #2a3038; }
}