/* Infrascope UI. No inline styles anywhere: the CSP forbids them.
   Themes: dark (default), light, or "system" (follows prefers-color-scheme).
   <html data-theme="system|light|dark"> is set by the server from a cookie. */

:root {
  /* dark */
  --bg: #0E131A; --side: #0B1016; --surface: #151C25; --surface-2: #121820; --border: #233041; --line: #1C2633;
  --input-bg: #0E131A; --input-border: #2A3A4F;
  --hover: #1A2330; --active: #1E2A3A; --seg-on: #24344A; --selected: #16202D;
  --text: #E6EDF3; --muted: #93A1B3; --muted2: #AEB9C7;
  --accent: #3B82F6; --accent-hover: #2F6FD8; --on-accent: #FFFFFF;
  --link: #7DB4FF; --link-hover: #A9CCFF;
  --ok-bg: #0F2E24; --ok: #4ADE9A; --warn-bg: #33260C; --warn: #FBBF4A;
  --crit-bg: #3A1418; --crit: #FF8A8A; --info-bg: #14253D; --info: #7DB4FF; --off-bg: #222B36; --off: #AEB9C7;
  --meter-mid: #F59E0B; --meter-high: #EF4444; --danger: #B42318;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme: dark;
}

/* light: chosen explicitly, or "system" on a light OS (same values twice,
   because CSS cannot combine a media query and an attribute in one selector) */
:root[data-theme="light"] {
  --bg: #F4F6F9; --side: #FFFFFF; --surface: #FFFFFF; --surface-2: #F6F8FA; --border: #D9DFE7; --line: #E8ECF1;
  --input-bg: #FFFFFF; --input-border: #C9D1DC;
  --hover: #EEF2F7; --active: #E4ECF8; --seg-on: #DCE7FB; --selected: #EEF4FE;
  --text: #0F1720; --muted: #5B6675; --muted2: #46505E;
  --accent: #2563EB; --accent-hover: #1D4ED8; --on-accent: #FFFFFF;
  --link: #1D4ED8; --link-hover: #1E3A8A;
  --ok-bg: #E3F5EB; --ok: #116B3D; --warn-bg: #FDF0D9; --warn: #8A4B00;
  --crit-bg: #FDE6E6; --crit: #B42318; --info-bg: #E5EEFD; --info: #1D4ED8; --off-bg: #EDF0F4; --off: #46505E;
  --meter-mid: #D97706; --meter-high: #DC2626; --danger: #B42318;
  color-scheme: light;
}
@media (prefers-color-scheme: light) {
  :root[data-theme="system"] {
    --bg: #F4F6F9; --side: #FFFFFF; --surface: #FFFFFF; --surface-2: #F6F8FA; --border: #D9DFE7; --line: #E8ECF1;
    --input-bg: #FFFFFF; --input-border: #C9D1DC;
    --hover: #EEF2F7; --active: #E4ECF8; --seg-on: #DCE7FB; --selected: #EEF4FE;
    --text: #0F1720; --muted: #5B6675; --muted2: #46505E;
    --accent: #2563EB; --accent-hover: #1D4ED8; --on-accent: #FFFFFF;
    --link: #1D4ED8; --link-hover: #1E3A8A;
    --ok-bg: #E3F5EB; --ok: #116B3D; --warn-bg: #FDF0D9; --warn: #8A4B00;
    --crit-bg: #FDE6E6; --crit: #B42318; --info-bg: #E5EEFD; --info: #1D4ED8; --off-bg: #EDF0F4; --off: #46505E;
    --meter-mid: #D97706; --meter-high: #DC2626; --danger: #B42318;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--text); font: 14px/1.5 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--link); text-decoration: none; }
a:hover { color: var(--link-hover); text-decoration: underline; }
h1 { margin: 0; font-size: 24px; font-weight: 600; letter-spacing: -0.02em; }
h2 { margin: 0 0 12px; font-size: 16px; font-weight: 600; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
.small { font-size: 12px; }
:focus-visible { outline: 2px solid var(--link); outline-offset: 2px; }

/* layout */
.shell { display: flex; flex-wrap: wrap; min-height: 100vh; }
.side { flex: 1 1 220px; max-width: 100%; background: var(--side); border-right: 1px solid var(--line); padding: 20px 14px; display: flex; flex-direction: column; gap: 22px; }
.main { flex: 999 1 560px; min-width: 0; padding: 28px 32px; display: flex; flex-direction: column; gap: 22px; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 8px; color: var(--text); font-weight: 700; font-size: 17px; }
.brand:hover { color: var(--text); text-decoration: none; }
.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px; color: var(--muted2); }
.nav a:hover { background: var(--hover); color: var(--text); text-decoration: none; }
.nav a.on { background: var(--active); color: var(--text); font-weight: 500; }
.side-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; padding: 0 8px; }
.theme-switch { display: flex; background: var(--input-bg); border: 1px solid var(--border); border-radius: 8px; padding: 3px; }
.theme-switch button { flex: 1; background: none; border: 0; color: var(--muted2); font: 500 12px Inter, system-ui, sans-serif; padding: 6px 8px; border-radius: 6px; cursor: pointer; min-height: 30px; }
.theme-switch button:hover { color: var(--text); }
.theme-switch button.on { background: var(--seg-on); color: var(--text); }
@media (max-width: 800px) {
  .side { flex-basis: 100%; border-right: 0; border-bottom: 1px solid var(--line); }
  .nav { flex-direction: row; flex-wrap: wrap; }
  .side-foot { margin-top: 0; flex-direction: row; flex-wrap: wrap; align-items: center; justify-content: space-between; }
  .main { padding: 20px 16px; }
}

.page-head { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: flex-start; }
.page-head p { margin: 4px 0 0; }
.crumbs { font-size: 13px; }
.row-wrap { display: flex; flex-wrap: wrap; gap: 10px 16px; align-items: center; }
.row-between { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; align-items: center; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.stack-s { display: flex; flex-direction: column; gap: 8px; }
.cols { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-start; }
.cols > * { flex: 1 1 420px; min-width: 0; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.card.flush { padding: 0; overflow: hidden; }
.pad { padding: 18px 20px 8px; margin: 0; }
.tiles { display: flex; flex-wrap: wrap; gap: 16px; }
.tile { flex: 1 1 200px; display: flex; flex-direction: column; gap: 8px; padding: 16px 18px; }
.link-card { color: var(--text); }
.link-card:hover { border-color: var(--accent); color: var(--text); text-decoration: none; }
.lbl { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; font-weight: 500; }
.big { font-size: 28px; font-weight: 600; letter-spacing: -0.02em; }
.unit { font-size: 14px; color: var(--muted); font-weight: 400; }

/* pills */
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 500; white-space: nowrap; }
.ok { background: var(--ok-bg); color: var(--ok); }
.warn { background: var(--warn-bg); color: var(--warn); }
.crit { background: var(--crit-bg); color: var(--crit); }
.info { background: var(--info-bg); color: var(--info); }
.off { background: var(--off-bg); color: var(--off); }

/* tables */
.scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; font-weight: 500; color: var(--muted); padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 12px; white-space: nowrap; }
td { padding: 9px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
tr.group th { background: var(--surface-2); color: var(--muted2); }
.util { display: inline-flex; align-items: center; gap: 8px; }

/* meters as bars */
meter { width: 100%; min-width: 80px; height: 6px; border-radius: 3px; background: var(--border); border: 0; }
meter::-webkit-meter-bar { background: var(--border); border: 0; border-radius: 3px; height: 6px; }
meter::-webkit-meter-optimum-value { background: var(--accent); border-radius: 3px; }
meter::-webkit-meter-suboptimum-value { background: var(--meter-mid); border-radius: 3px; }
meter::-webkit-meter-even-less-good-value { background: var(--meter-high); border-radius: 3px; }
meter::-moz-meter-bar { background: var(--accent); border-radius: 3px; }
meter:-moz-meter-sub-optimum::-moz-meter-bar { background: var(--meter-mid); }
meter:-moz-meter-sub-sub-optimum::-moz-meter-bar { background: var(--meter-high); }

/* lists */
.list, .events { list-style: none; margin: 0; padding: 0; }
.list li { padding: 8px 0; border-top: 1px solid var(--line); }
.list li:first-child { border-top: 0; }
.events li { display: flex; gap: 12px; align-items: flex-start; padding: 10px 0; border-top: 1px solid var(--line); }
.events li:first-child { border-top: 0; }
.events .pill { min-width: 64px; justify-content: center; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 8px 16px; margin: 0; font-size: 13px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; overflow-wrap: anywhere; }

/* charts */
.chart { display: block; width: 100%; height: auto; border-radius: 8px; margin-top: 8px; }
picture { display: block; }

/* forms */
.field { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted2); font-weight: 500; }
input[type=text], input[type=password], select {
  background: var(--input-bg); border: 1px solid var(--input-border); border-radius: 8px; color: var(--text);
  padding: 10px 12px; font: 14px Inter, system-ui, sans-serif; min-height: 42px; width: 100%;
}
input:focus, select:focus { border-color: var(--accent); outline: none; }
.btn, .btn-ghost, .btn-danger { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 8px; font: 600 14px Inter, system-ui, sans-serif; padding: 10px 16px; min-height: 42px; cursor: pointer; }
.btn { background: var(--accent); color: var(--on-accent); border: 0; }
.btn:hover { background: var(--accent-hover); color: var(--on-accent); text-decoration: none; }
.btn-ghost { background: var(--surface); color: var(--text); border: 1px solid var(--input-border); font-weight: 500; }
.btn-ghost:hover { border-color: var(--accent); }
.btn-ghost.small { min-height: 34px; padding: 6px 12px; font-size: 13px; }
.btn-danger { background: var(--danger); color: #FFFFFF; border: 0; }
.btn-link { background: none; border: 0; color: var(--link); font: inherit; cursor: pointer; padding: 8px 0; }
.seg { display: inline-flex; background: var(--input-bg); border: 1px solid var(--border); border-radius: 8px; padding: 3px; }
.seg a { padding: 6px 12px; border-radius: 6px; color: var(--muted2); font-size: 13px; font-weight: 500; }
.seg a:hover { text-decoration: none; color: var(--text); }
.seg a.on { background: var(--seg-on); color: var(--text); }
.seg-radio { border: 0; padding: 0; margin: 0; display: flex; gap: 8px; flex-wrap: wrap; }
.seg-radio legend { font-size: 13px; color: var(--muted2); font-weight: 500; margin-bottom: 8px; }
.seg-radio label { display: inline-flex; align-items: center; gap: 8px; padding: 9px 14px; border: 1px solid var(--input-border); border-radius: 8px; cursor: pointer; }
.seg-radio label:has(input:checked) { border-color: var(--accent); background: var(--selected); }
.form:has(#v-v2c:checked) .only-v3 { display: none; }
.form:has(#v-v3:checked) .only-v2c { display: none; }
details.danger { position: relative; }
details.danger summary { list-style: none; }
details.danger summary::-webkit-details-marker { display: none; }
details.danger[open] form { position: absolute; right: 0; top: 50px; z-index: 5; width: min(360px, 90vw); box-shadow: 0 8px 24px rgba(0,0,0,.18); }

/* messages */
.flash, .alert { margin: 0; padding: 12px 14px; border-radius: 8px; font-size: 14px; }
.flash { background: var(--ok-bg); color: var(--ok); }
.alert { background: var(--crit-bg); color: var(--crit); }

/* auth pages */
.auth { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px 16px; }
.auth-card { width: min(420px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 28px; display: flex; flex-direction: column; gap: 18px; }
.auth-card .brand { padding: 0; }
.steps { padding-left: 20px; margin: 0; display: flex; flex-direction: column; gap: 10px; color: var(--muted2); }
.secret { display: block; margin: 8px 0; padding: 10px 12px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 8px; font-family: var(--mono); font-size: 15px; letter-spacing: .05em; color: var(--text); overflow-wrap: anywhere; }