:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c2230;
  --border: #2a3140;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #4ea1ff;
  --up: #3fb950;
  --down: #f85149;
  --paused: #d29922;
  --pending: #8b949e;
  --mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, monospace;
}
:root[data-theme="light"] {
  --bg: #f6f8fa;
  --panel: #ffffff;
  --panel-2: #eef1f4;
  --border: #d0d7de;
  --text: #1f2328;
  --muted: #656d76;
  --accent: #0969da;
  --up: #1a7f37;
  --down: #cf222e;
  --paused: #9a6700;
  --pending: #656d76;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}
a { color: inherit; text-decoration: none; }

/* top bar */
.topbar {
  display: flex; align-items: center; gap: 18px;
  padding: 12px 20px; background: var(--panel);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; letter-spacing: .04em; }
.brand::before { content: "◆ "; color: var(--accent); }
.topbar nav a { color: var(--muted); padding: 4px 8px; border-radius: 6px; }
.topbar nav a:hover, .topbar nav a.active { color: var(--text); background: var(--panel-2); }
.spacer { flex: 1; }
.icon-btn { background: transparent; border: 1px solid var(--border); border-radius: 7px;
  color: var(--muted); cursor: pointer; padding: 3px 9px; font-size: 14px; line-height: 1.4; }
.icon-btn:hover { color: var(--text); border-color: var(--accent); }
.theme-dark { display: none; }
.theme-light { display: inline; }
:root[data-theme="light"] .theme-dark { display: inline; }
:root[data-theme="light"] .theme-light { display: none; }
.user { color: var(--muted); font-family: var(--mono); font-size: 12px; }
button.link { background: none; border: none; color: var(--muted); cursor: pointer; font: inherit; }
button.link:hover { color: var(--down); }

/* layout */
/* Full-width dashboard layout (matches the full-width topbar). Forms set their own max-width
   for readability; dense fleet tables use the whole page. */
main { padding: 22px 26px; }
h1 { font-size: 20px; margin: 0 0 16px; }
.empty { color: var(--muted); padding: 40px; text-align: center; }

/* status summary pills */
.summary { display: flex; gap: 8px; margin: 4px 0 16px; }
.pill { font-size: 12px; padding: 4px 12px; border-radius: 14px; border: 1px solid var(--border); font-family: var(--mono); }
.pill.ok { color: var(--up); border-color: color-mix(in srgb, var(--up) 45%, transparent); }
.pill.warn { color: var(--paused); border-color: color-mix(in srgb, var(--paused) 45%, transparent); }
.pill.crit { color: var(--down); border-color: color-mix(in srgb, var(--down) 45%, transparent); }

/* active alerts panel */
.alerts-panel { background: color-mix(in srgb, var(--down) 8%, var(--panel)); border: 1px solid color-mix(in srgb, var(--down) 35%, var(--border)); border-radius: 10px; padding: 14px 16px; margin-bottom: 18px; }
.alerts-panel h3 { margin: 0 0 10px; font-size: 13px; color: var(--down); letter-spacing: .03em; }
.alert-row { display: flex; align-items: center; gap: 10px; padding: 4px 0; font-size: 13px; }
.alert-row b { color: var(--text); }
.alert-row span:last-child { color: var(--muted); font-family: var(--mono); font-size: 12px; }

/* systems table */
.table-wrap { overflow-x: auto; }
table.systems { width: 100%; border-collapse: collapse; }
table.systems th { text-align: left; color: var(--muted); font-size: 11px; letter-spacing: .06em; font-weight: 600; padding: 8px 14px; border-bottom: 1px solid var(--border); }
table.systems td { padding: 11px 14px; border-bottom: 1px solid var(--border); font-size: 13px; white-space: nowrap; }
table.systems tr:hover td { background: var(--panel); }
table.systems td.sys { display: flex; align-items: center; gap: 9px; }
table.systems td.sys a { font-weight: 500; }
table.systems td.sys a:hover { color: var(--accent); }
table.systems .net, table.systems .agent, table.systems .seen { color: var(--muted); font-family: var(--mono); font-size: 12px; }
.metric { display: flex; align-items: center; gap: 9px; }
.metric .bar { width: 64px; height: 6px; background: var(--panel-2); border-radius: 4px; overflow: hidden; }
.metric .bar i { display: block; height: 100%; border-radius: 4px; }
.metric .bar.ok i { background: var(--up); }
.metric .bar.warn i { background: var(--paused); }
.metric .bar.crit i { background: var(--down); }
.metric span { font-family: var(--mono); font-size: 12px; min-width: 34px; }
.mono { font-family: var(--mono); }

/* system grid (legacy) */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; padding: 14px 16px; transition: border-color .15s, transform .15s;
}
.card.sys:hover { border-color: var(--accent); transform: translateY(-1px); }
.sys-head { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; }
.sys-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; background: var(--pending); }
.dot.up { background: var(--up); box-shadow: 0 0 6px var(--up); }
.dot.down { background: var(--down); }
.dot.paused { background: var(--paused); }
.metrics { display: flex; gap: 16px; }
.m { display: flex; flex-direction: column; }
.m span { color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.m b { font-family: var(--mono); font-size: 16px; font-weight: 600; }

/* login */
.login-wrap { min-height: 100vh; display: grid; place-items: center; }
.card.login { width: 320px; display: flex; flex-direction: column; gap: 12px; padding: 28px; }
.card.login h1 { text-align: center; }
.card.login input {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font: inherit;
}
.card.login input:focus { outline: none; border-color: var(--accent); }
.card.login button[type=submit] {
  background: var(--accent); color: #06111f; border: none; border-radius: 8px;
  padding: 10px; font-weight: 600; cursor: pointer;
}
.card.login .sso { text-align: center; color: var(--muted); border: 1px solid var(--border); border-radius: 8px; padding: 9px; }
.card.login .sso:hover { color: var(--text); border-color: var(--accent); }
.err { background: rgba(248,81,73,.12); border: 1px solid var(--down); color: #ffb4ae; border-radius: 8px; padding: 8px 10px; font-size: 13px; text-align: center; }

/* flash toast */
.toast { position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 20px); opacity: 0;
  background: var(--panel-2); border: 1px solid var(--up); color: var(--text);
  padding: 10px 18px; border-radius: 9px; font-size: 13px; z-index: 100;
  transition: opacity .25s, transform .25s; box-shadow: 0 8px 24px rgba(0,0,0,.4); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* system detail */
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; }
.chart-card { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 12px 14px; }
.chart-card h3 { margin: 0 0 4px; font-size: 12px; color: var(--muted); font-weight: 600; letter-spacing: .04em; }

/* compact health snapshot cards */
.snapgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin: 4px 0 14px; align-items: start; }
.snap { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 11px 13px; }
.temps-block { margin: 0 0 20px; }
.temps-block h4 { margin: 0 0 8px; font-size: 11px; color: var(--muted); font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }
.snap h4 { margin: 0 0 8px; font-size: 11px; color: var(--muted); font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }
.snap-big { font-family: var(--mono); font-size: 24px; font-weight: 600; }
.snap-big small { font-size: 12px; color: var(--muted); font-weight: 400; }
.kv { display: flex; align-items: center; gap: 8px; font-size: 12px; padding: 2px 0; }
.kv-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.kv-v { margin-left: auto; color: var(--muted); font-family: var(--mono); white-space: nowrap; }
.kv-bad { color: var(--down); font-size: 12px; margin-top: 6px; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 11px; letter-spacing: .06em; }
td.num { font-family: var(--mono); text-align: right; }
.u-legend { font-size: 11px; }
.back { color: var(--muted); }
.back:hover { color: var(--accent); }
.detail-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 6px; }
.detail-meta { color: var(--muted); font-family: var(--mono); font-size: 12px; margin-bottom: 18px; }
/* at-a-glance summary strip on system detail */
.statstrip { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin: 4px 0 22px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; display: flex; flex-direction: column; gap: 2px; }
.stat span { color: var(--muted); font-size: 10px; letter-spacing: .09em; }
.stat b { font-family: var(--mono); font-size: 26px; font-weight: 600; line-height: 1.1; }
.stat b.net { font-size: 14px; }
.stat small { color: var(--muted); font-family: var(--mono); font-size: 11px; }

.ranges { margin-bottom: 14px; display: flex; gap: 6px; }
.ranges a { padding: 4px 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--muted); font-size: 12px; }
.ranges a.active, .ranges a:hover { color: var(--text); border-color: var(--accent); }

/* status badges (CI/CD) */
.badge { font-family: var(--mono); font-size: 11px; padding: 2px 8px; border-radius: 10px; border: 1px solid var(--border); }
.badge.ok { color: var(--up); border-color: var(--up); }
.badge.fail { color: var(--down); border-color: var(--down); }
.badge.pending { color: var(--paused); border-color: var(--paused); }
a.linkout { color: var(--accent); }

/* management forms */
.row-form { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; align-items: center; }
.row-form select, .row-form input, .settings-form input, .settings-form textarea {
  background: var(--bg); border: 1px solid var(--border); color: var(--text);
  border-radius: 7px; padding: 8px 10px; font: inherit;
}
.row-form button, .settings-form button {
  background: var(--accent); color: #06111f; border: none; border-radius: 7px;
  padding: 8px 14px; font-weight: 600; cursor: pointer;
}
.settings-form { display: flex; flex-direction: column; gap: 8px; max-width: 640px; }
.settings-form label { display: flex; flex-direction: column; gap: 6px; color: var(--muted); font-size: 12px; }
.settings-form textarea { font-family: var(--mono); resize: vertical; }
.settings-form button { align-self: flex-start; }
.hint { color: var(--muted); font-size: 12px; }
.hint code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; }
.presets { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.preset { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); border-radius: 16px; padding: 5px 12px; font-size: 12px; cursor: pointer; }
.preset:hover { border-color: var(--accent); color: var(--accent); }

/* token / onboarding */
.token-head { display: flex; align-items: center; gap: 12px; margin-bottom: 10px; }
.cmd-row { display: flex; gap: 8px; align-items: stretch; margin: 6px 0; }
.cmd { flex: 1; margin: 0; background: var(--bg); border: 1px solid var(--border); border-radius: 7px;
  padding: 10px 12px; font-family: var(--mono); font-size: 12px; color: var(--text);
  white-space: pre-wrap; word-break: break-all; overflow-x: auto; }
.copy { background: var(--panel-2); color: var(--muted); border: 1px solid var(--border);
  border-radius: 7px; padding: 0 12px; font-size: 12px; cursor: pointer; }
.copy:hover { color: var(--accent); border-color: var(--accent); }
.os-tabs { display: flex; gap: 4px; margin: 4px 0 10px; }
.os-tab { background: transparent; color: var(--muted); border: 1px solid var(--border);
  border-radius: 7px; padding: 5px 12px; font-size: 12px; cursor: pointer; }
.os-tab:hover { color: var(--text); }
.os-tab.active { color: var(--accent); border-color: var(--accent); background: var(--panel-2); }
.os-panel code { background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
  padding: 1px 5px; font-family: var(--mono); font-size: 12px; }
.btn { background: var(--accent); color: #06111f; border: none; border-radius: 7px;
  padding: 7px 14px; font-weight: 600; cursor: pointer; font-size: 13px; }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border);
  border-radius: 7px; padding: 6px 12px; font-size: 13px; cursor: pointer; }
.btn-ghost:hover { color: var(--accent); border-color: var(--accent); }
.test-form { margin-top: 10px; display: flex; align-items: center; gap: 10px; }
.runner-form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 16px; margin-bottom: 12px; }
.runner-form label { display: flex; flex-direction: column; gap: 4px; font-size: 12px; color: var(--muted); }
.runner-form input, .runner-form select { background: var(--bg); border: 1px solid var(--border);
  border-radius: 7px; color: var(--text); padding: 7px 10px; font-size: 13px; }
.runner-form input:focus, .runner-form select:focus { outline: none; border-color: var(--accent); }
.runner-form .check { flex-direction: row; align-items: center; gap: 8px; color: var(--text); }
.row-actions { display: flex; gap: 10px; }
@media (max-width: 640px) { .runner-form { grid-template-columns: 1fr; } }
.h1-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.filter { margin-left: auto; background: var(--bg); border: 1px solid var(--border); border-radius: 7px;
  color: var(--text); padding: 6px 12px; font-size: 13px; min-width: 200px; }
.filter:focus { outline: none; border-color: var(--accent); }
table.systems th[data-sort] { cursor: pointer; user-select: none; }
table.systems th[data-sort]:hover { color: var(--text); }
table.systems th.sorted { color: var(--accent); }
table.systems th[data-sort]::after { content: attr(data-dir); margin-left: 4px; font-size: 9px; }
.warn-text { color: #d29922; }
.crit-text { color: var(--down); }

/* subsystem sections (system detail) */
.subgrid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; margin-top: 16px; }
.big { font-family: var(--mono); font-size: 28px; font-weight: 600; margin: 6px 0 0; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px; padding: 4px 10px; font-size: 12px; color: var(--muted); }
.chip b { color: var(--text); font-family: var(--mono); }
ul.failed { margin: 6px 0 0; padding-left: 18px; color: var(--down); font-family: var(--mono); font-size: 13px; }

/* container list — scannable rows with a CPU bar */
.ctn-list { display: flex; flex-direction: column; gap: 6px; }
.ctn { display: grid; grid-template-columns: minmax(180px, 2fr) 1.3fr 1.4fr auto; align-items: center; gap: 16px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 9px; padding: 10px 14px; }
.ctn:hover { border-color: #38414f; }
.ctn-id { display: flex; align-items: center; gap: 9px; min-width: 0; }
.ctn-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ctn-status { color: var(--muted); font-size: 12px; }
.ctn-cpu { display: flex; align-items: center; gap: 10px; }
.ctn-cpu .bar { flex: 1; height: 6px; background: var(--panel-2); border-radius: 4px; overflow: hidden; }
.ctn-cpu .bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), #6db3ff); border-radius: 4px; }
.ctn-cpu b { font-family: var(--mono); font-size: 12px; width: 48px; text-align: right; }
.ctn-mem { font-family: var(--mono); font-size: 12px; color: var(--muted); text-align: right; }
@media (max-width: 720px) {
  .ctn { grid-template-columns: 1fr auto; gap: 6px 12px; }
  .ctn-status { display: none; }
}

/* responsive: wrap the topbar nav, tighten spacing on small screens */
@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; gap: 8px 14px; padding: 10px 14px; }
  .topbar nav { order: 3; width: 100%; display: flex; flex-wrap: wrap; gap: 4px 6px; }
  .topbar .spacer { display: none; }
  main { padding: 16px 12px; }
  h1 { font-size: 18px; }
  .statstrip { grid-template-columns: repeat(2, 1fr); }
  .detail-meta { font-size: 11px; }
}