/* =========================================================================
   Homelab Admin and Control Kernel — "Deep Stack" UI
   Layered on top of Bootstrap 5.3. All colour values live in CSS variables so
   the dark/light themes swap with a single [data-theme] attribute on <html>.

   Design notes for future maintainers:
   - border-radius is 3-4px everywhere (not 6-8px). Tight radii read as
     "engineered hardware / rack equipment", not "consumer SaaS".
   - Amber (--accent-primary) is the PRIMARY action colour, cyan is SECONDARY.
     Amber = the HDD-activity / BIOS-alert LED; it draws the eye to the one
     action that mutates state (apply, run, save). Cyan = navigation, links,
     live/metric values — frequent but non-destructive, so it stays calmer.
   - Data (numbers, ids, hashes, logs, targets) is monospaced (JetBrains Mono);
     UI chrome (labels, nav, prose) is humanist (IBM Plex Sans).
   ========================================================================= */

/* === FONTS (self-hosted, no CDN) ======================================== */
@font-face {
  font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 400;
  font-display: swap; src: url('/static/fonts/ibm-plex-sans-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 500;
  font-display: swap; src: url('/static/fonts/ibm-plex-sans-latin-500-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans'; font-style: normal; font-weight: 600;
  font-display: swap; src: url('/static/fonts/ibm-plex-sans-latin-600-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono'; font-style: normal; font-weight: 400;
  font-display: swap; src: url('/static/fonts/jetbrains-mono-latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono'; font-style: normal; font-weight: 500;
  font-display: swap; src: url('/static/fonts/jetbrains-mono-latin-500-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'JetBrains Mono'; font-style: normal; font-weight: 700;
  font-display: swap; src: url('/static/fonts/jetbrains-mono-latin-700-normal.woff2') format('woff2');
}

/* === TOKENS: DARK THEME (default) ====================================== */
:root,
[data-theme="dark"] {
  --bg-base:      #0B0F1A;
  --bg-surface:   #0F1525;
  --bg-elevated:  #161D30;
  --bg-inset:     #080B14;
  --border-subtle: #1E2A42;
  --border-active: #00B8D4;
  --border-accent: #F0A500;

  --accent-primary:   #F0A500;
  --accent-secondary: #00B8D4;
  --accent-glow-amber: rgba(240,165,0,0.12);
  --accent-glow-cyan:  rgba(0,184,212,0.12);

  --text-primary:   #CDD6F4;
  --text-secondary: #7A8BA8;
  --text-muted:     #3A4A62;
  --text-code:      #89DCEB;

  --status-ok:    #40C070;
  --status-warn:  #F0A500;
  --status-error: #F0526A;
  --status-info:  #00B8D4;
  --status-idle:  #4A5A72;

  /* Translucent fills for status pills (badge backgrounds). */
  --fill-ok:    rgba(64,192,112,0.10);
  --fill-warn:  rgba(240,165,0,0.10);
  --fill-error: rgba(240,82,106,0.10);
  --fill-info:  rgba(0,184,212,0.10);
  --fill-idle:  rgba(74,90,114,0.12);

  --shadow-card: 0 1px 2px rgba(0,0,0,0.4);
  --grid-dot:   rgba(30,42,66,0.55);   /* PCB grid colour (background dots) */
  --fonts-sans: 'IBM Plex Sans', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --fonts-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* === TOKENS: LIGHT THEME =============================================== */
[data-theme="light"] {
  --bg-base:      #EEF1F8;
  --bg-surface:   #FFFFFF;
  --bg-elevated:  #E4E9F4;
  --bg-inset:     #F5F7FC;
  --border-subtle: #C8D0E0;
  --border-active: #0090A8;
  --border-accent: #C07800;

  --accent-primary:   #C07800;
  --accent-secondary: #0090A8;
  --accent-glow-amber: rgba(192,120,0,0.12);
  --accent-glow-cyan:  rgba(0,144,168,0.12);

  --text-primary:   #0D1628;
  --text-secondary: #3A5278;
  --text-muted:     #7A8BA8;
  --text-code:      #006B80;

  --status-ok:    #1E9E54;
  --status-warn:  #B57400;
  --status-error: #D03050;
  --status-info:  #0090A8;
  --status-idle:  #7A8BA8;

  --fill-ok:    rgba(30,158,84,0.10);
  --fill-warn:  rgba(181,116,0,0.12);
  --fill-error: rgba(208,48,80,0.10);
  --fill-info:  rgba(0,144,168,0.10);
  --fill-idle:  rgba(122,139,168,0.14);

  --shadow-card: 0 1px 3px rgba(13,22,40,0.08);
  --grid-dot:   rgba(200,208,224,0.7);
}

/* === BOOTSTRAP BRIDGE =================================================== */
/* Map Bootstrap's own CSS variables onto our tokens so every stock Bootstrap
   class (.card, .table, .modal, .form-control, .dropdown, .nav-tabs, .alert…)
   inherits the theme without per-component rewrites. */
:root {
  --bs-body-bg: var(--bg-base);
  --bs-body-color: var(--text-primary);
  --bs-body-font-family: var(--fonts-sans);
  --bs-emphasis-color: var(--text-primary);
  --bs-secondary-color: var(--text-secondary);
  --bs-tertiary-color: var(--text-muted);
  --bs-border-color: var(--border-subtle);
  --bs-border-color-translucent: var(--border-subtle);
  --bs-link-color: var(--accent-secondary);
  --bs-link-hover-color: var(--accent-primary);
  --bs-code-color: var(--text-code);
  --bs-border-radius: 4px;
  --bs-border-radius-sm: 3px;
  --bs-border-radius-lg: 5px;

  --bs-card-bg: var(--bg-surface);
  --bs-card-border-color: var(--border-subtle);
  --bs-card-cap-bg: var(--bg-inset);
  --bs-card-color: var(--text-primary);

  --bs-modal-bg: var(--bg-surface);
  --bs-modal-border-color: var(--border-subtle);
  --bs-modal-header-border-color: var(--border-subtle);
  --bs-modal-footer-border-color: var(--border-subtle);

  --bs-dropdown-bg: var(--bg-surface);
  --bs-dropdown-border-color: var(--border-subtle);
  --bs-dropdown-link-color: var(--text-primary);
  --bs-dropdown-link-hover-bg: var(--bg-elevated);
  --bs-dropdown-link-hover-color: var(--text-primary);
  --bs-dropdown-header-color: var(--text-muted);
  --bs-dropdown-divider-bg: var(--border-subtle);

  --bs-table-bg: transparent;
  --bs-table-color: var(--text-primary);
  --bs-table-border-color: var(--border-subtle);
  --bs-table-hover-bg: var(--bg-elevated);
  --bs-table-hover-color: var(--text-primary);

  --bs-tertiary-bg: var(--bg-inset);
  --bs-secondary-bg: var(--bg-elevated);
}

/* === BASE / TYPOGRAPHY ================================================= */
html { height: 100%; }
body {
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--fonts-sans);
  /* PCB grid: ultra-subtle dotted lattice for depth, like a bare board. */
  background-image: radial-gradient(circle, var(--grid-dot) 1px, transparent 1px);
  background-size: 24px 24px;
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}
code, kbd, pre, samp, .mono { font-family: var(--fonts-mono); }
a { text-decoration: none; }
a:hover { text-decoration: none; }
h1, h2, h3, h4, h5, h6 { color: var(--text-primary); font-weight: 600; letter-spacing: -0.01em; }
.text-muted { color: var(--text-secondary) !important; }
hr { border-color: var(--border-subtle); opacity: 1; }
::selection { background: var(--accent-glow-cyan); }

/* Page heading used at the top of each view. */
/* Page title now lives in the top bar (.topbar-title); the in-content
   .page-head was removed from templates. */

/* === LAYOUT: APP SHELL / SIDEBAR ======================================= */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 220px; flex: 0 0 220px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
  z-index: 1040;
  /* Rack-LED glow: a faint amber wash at the bottom, like indicator LEDs
     lighting the lower bay of a server rack. */
  background-image: radial-gradient(120% 40% at 50% 120%, var(--accent-glow-amber), transparent 70%);
}
.sidebar-brand {
  display: flex; align-items: center; gap: .5rem;
  padding: 1rem 1rem .9rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--fonts-mono); font-weight: 700;
  color: var(--text-primary); font-size: .95rem;
  overflow: hidden;
}
.sidebar-brand .brand-prompt { color: var(--accent-secondary); }   /* the >_ glyph */
.sidebar-brand .brand-name { white-space: nowrap; text-overflow: ellipsis; overflow: hidden; }
.sidebar-brand .brand-host {
  font-size: .6rem; color: var(--text-secondary);
  border: 1px solid var(--border-subtle); border-radius: 3px;
  padding: .05rem .3rem; margin-left: auto; white-space: nowrap;
}

.sidebar-nav { flex: 1 1 auto; overflow-y: auto; padding: .5rem 0; }
.nav-section { padding: .9rem .9rem .25rem; }
.nav-section-title {
  /* Section headers read like code comments: // INFRASTRUCTURE */
  font-size: .62rem; text-transform: uppercase; letter-spacing: .12em;
  color: var(--text-muted); font-family: var(--fonts-mono); font-weight: 500;
}
.nav-section-title::before { content: "// "; }
/* PCB-trace divider: a hairline between circuit groups. */
.nav-section + .nav-section { border-top: 1px solid var(--border-subtle); margin-top: .25rem; }

.nav-link-item {
  display: flex; align-items: center; gap: .65rem;
  padding: .5rem .9rem; margin: 1px .4rem;
  color: var(--text-secondary); border-radius: 4px;
  border-left: 2px solid transparent;
  font-size: .9rem; transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}
.nav-link-item:hover {
  background: var(--bg-elevated); color: var(--text-primary);
  border-left-color: var(--accent-secondary);
}
.nav-link-item.active {
  background: var(--bg-elevated); color: var(--text-primary);
  border-left-color: var(--accent-primary);   /* amber = you-are-here */
}
.nav-link-item .nav-ico { flex: 0 0 16px; display: inline-flex; color: currentColor; }
.nav-link-item.active .nav-ico { color: var(--accent-primary); }

.sidebar-foot {
  border-top: 1px solid var(--border-subtle);
  padding: .7rem .9rem; display: flex; flex-direction: column; gap: .5rem;
}
.sidebar-user { display: flex; align-items: center; gap: .5rem; min-width: 0; }
.sidebar-user .su-name {
  font-family: var(--fonts-mono); font-size: .8rem; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sidebar-foot-actions { display: flex; align-items: center; gap: .4rem; }
/* Everything keeps its size; only the queue readout flexes (see below). The
   logout control is wrapped in a <form>, so pin direct children, not buttons. */
.sidebar-foot-actions > * { flex: 0 0 auto; }

/* Always-on job activity readout (running / max concurrent + queued). Grows to
   fill the leftover space between refresh and logout and centres its content
   there. Amber when something is active, muted when idle; clicking jumps to
   /jobs. The full "N/M running · K queued" phrasing lives in the title tooltip. */
.queue-indicator {
  flex: 1 1 auto; min-width: 0; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: .2rem;
  white-space: nowrap; font-family: var(--fonts-mono); font-size: .7rem;
  color: var(--text-secondary); text-decoration: none;
}
.queue-indicator .qi-ico { color: var(--accent-primary); display: inline-flex; }
.queue-indicator.is-idle { color: var(--text-muted); }
.queue-indicator.is-idle .qi-ico { color: var(--text-muted); }
.queue-indicator:hover { color: var(--text-primary); }
.queue-indicator .qi-queued b { color: var(--accent-primary); }

/* Icon-only square button used in the sidebar footer (theme, refresh, logout). */
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px; padding: 0;
  background: transparent; border: 1px solid var(--border-subtle);
  border-radius: 4px; color: var(--text-secondary); cursor: pointer;
  transition: border-color 150ms ease, color 150ms ease, background 150ms ease;
}
.icon-btn:hover { border-color: var(--border-active); color: var(--text-primary); background: var(--bg-elevated); }

/* App logo (sidebar brand). Wordmark inherits text colour; mark uses accents. */
.app-logo { display: block; }
.sidebar-brand .app-logo { color: var(--text-primary); }

/* Top bar — always visible. Hamburger (mobile) on the left; the instance
   identity sits on the right, stacked over two lines (name + hostname badge). */
.topbar {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem 1.5rem; background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle); position: sticky; top: 0; z-index: 1030;
}
.tb-burger { display: none; }   /* mobile only (shown in the media query below) */
.topbar-identity {
  margin-left: auto; display: flex; flex-direction: column; align-items: flex-end;
  line-height: 1.25; min-width: 0;
}
.topbar-identity .ti-name {
  font-family: var(--fonts-mono); font-weight: 700; font-size: .9rem; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 60vw;
}
.topbar-identity .ti-host {
  display: inline-flex; align-items: center; gap: .3rem;
  font-family: var(--fonts-mono); font-size: .68rem; color: var(--text-secondary);
}
.topbar-identity .ti-host svg { color: var(--accent-secondary); }

/* Page title in the top bar (left). Replaces the per-page in-content heading. */
.topbar-title { display: flex; align-items: center; gap: .5rem; min-width: 0; }
.topbar-title .tt-icon { color: var(--accent-secondary); display: inline-flex; }
.topbar-title .tt-text {
  margin: 0; font-family: var(--fonts-mono); font-weight: 700; font-size: 1rem;
  color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.app-main { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.app-content { flex: 1 1 auto; padding: 1.25rem 1.5rem; }
.sidebar-backdrop { display: none; }

@media (max-width: 991.98px) {
  .tb-burger { display: inline-flex; }
  .topbar { padding-left: .85rem; padding-right: .85rem; }
  .sidebar {
    position: fixed; left: 0; top: 0; height: 100vh;
    transform: translateX(-100%); transition: transform 200ms ease;
  }
  body.sidebar-open .sidebar { transform: translateX(0); }
  body.sidebar-open .sidebar-backdrop {
    display: block; position: fixed; inset: 0; background: rgba(0,0,0,0.6);
    backdrop-filter: blur(2px); z-index: 1035;
  }
  .app-content { padding: 1rem; }
}

/* === COMPONENTS: CARDS ================================================= */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;   /* technical, not pillowy */
  box-shadow: var(--shadow-card);
  color: var(--text-primary);
}
.card-header {
  background: var(--bg-inset); color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
  font-size: .8rem; letter-spacing: .03em; font-weight: 500;
  text-transform: uppercase;
}
.card-footer { background: var(--bg-inset); border-top: 1px solid var(--border-subtle); }
.card.card-hover:hover,
.plugin-card:hover {
  border-color: var(--border-active);
  box-shadow: 0 0 20px var(--accent-glow-cyan);
}
.plugin-card { transition: border-color .18s ease, box-shadow .18s ease; }

/* --- KPI metric cards (dashboard) --- */
.kpi {
  position: relative; overflow: hidden;
  background: var(--bg-surface); border: 1px solid var(--border-subtle);
  border-radius: 4px; padding: .85rem 1rem; height: 100%;
  transition: border-color .18s ease, box-shadow .18s ease;
}
.kpi:hover { border-color: var(--border-active); box-shadow: 0 0 20px var(--accent-glow-cyan); }
/* Hardware "cut corner" — a notched top-right corner like a keyed connector. */
.kpi::after {
  content: ""; position: absolute; top: 0; right: 0;
  border-width: 0 10px 10px 0; border-style: solid;
  border-color: var(--bg-base) var(--bg-base) var(--border-subtle) var(--border-subtle);
}
.kpi-ico { color: var(--text-muted); margin-bottom: .35rem; display: inline-flex; }
.kpi-num {
  font-family: var(--fonts-mono); font-size: 2.1rem; font-weight: 700;
  line-height: 1; color: var(--accent-secondary);
}
.kpi-cap {
  color: var(--text-secondary); font-size: .68rem; text-transform: uppercase;
  letter-spacing: .1em; margin-top: .3rem;
}
/* Critical/alert KPIs use amber/red; informational stay cyan. */
.kpi-primary .kpi-num { color: var(--accent-secondary); }
.kpi-success .kpi-num { color: var(--status-ok); }
.kpi-warning .kpi-num { color: var(--status-warn); }
.kpi-danger  .kpi-num { color: var(--status-error); }
.kpi-info    .kpi-num { color: var(--accent-secondary); }
.kpi-muted   .kpi-num { color: var(--text-secondary); }

/* Capacity micro-bar under a KPI (optional). */
.kpi-bar { height: 3px; background: var(--bg-inset); border-radius: 2px; margin-top: .55rem; overflow: hidden; }
.kpi-bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary)); }

.donut-num { font-family: var(--fonts-mono); font-size: 1.9rem; font-weight: 700; fill: var(--text-primary); }
.donut-cap { font-size: .55rem; fill: var(--text-secondary); text-transform: uppercase; letter-spacing: .05em; }
.donut { width: 160px; height: 160px; }

.dot { display: inline-block; width: .65rem; height: .65rem; border-radius: 50%; margin-right: .35rem; vertical-align: middle; }

/* === COMPONENTS: TABLE ================================================= */
.table { color: var(--text-primary); margin-bottom: 0; }
.table > thead th {
  background: var(--bg-inset); color: var(--text-muted);
  text-transform: uppercase; letter-spacing: .1em; font-size: .68rem;
  font-family: var(--fonts-mono); font-weight: 500; border-bottom: 1px solid var(--border-subtle);
}
.table > tbody > tr { border-color: var(--border-subtle); }
.table > tbody > tr:hover > * { background: var(--bg-elevated); }
.table > :not(caption) > * > * { border-bottom-color: var(--border-subtle); }
/* Monospace id / hash / target / time cells. */
.cell-id, .cell-mono, td .mono { font-family: var(--fonts-mono); }
.cell-id { color: var(--text-code); font-size: .8rem; }
.cell-num { font-family: var(--fonts-mono); color: var(--text-secondary); text-align: right; }
.at-prefix::before { content: "@"; color: var(--text-muted); }

/* === COMPONENTS: BADGES / STATUS ====================================== */
/* Generic status pill: translucent fill + 1px coloured border + solid text. */
.st {
  display: inline-flex; align-items: center; gap: .3rem;
  font-family: var(--fonts-mono); font-size: .72rem; font-weight: 500;
  padding: .12rem .5rem; border-radius: 3px; border: 1px solid transparent;
  line-height: 1.4; white-space: nowrap;
}
.st-ok    { background: var(--fill-ok);    color: var(--status-ok);    border-color: var(--status-ok); }
.st-warn  { background: var(--fill-warn);  color: var(--status-warn);  border-color: var(--status-warn); }
.st-error { background: var(--fill-error); color: var(--status-error); border-color: var(--status-error); }
.st-info  { background: var(--fill-info);  color: var(--status-info);  border-color: var(--status-info); }
.st-idle  { background: var(--fill-idle);  color: var(--text-secondary); border-color: var(--status-idle); }
.st-running { animation: pulse-cyan 2s ease-in-out infinite; }

/* Bootstrap badge re-skin so existing `badge bg-*` markup matches the palette. */
.badge { font-weight: 500; font-family: var(--fonts-mono); letter-spacing: .02em; border-radius: 3px; }
.badge.bg-success  { background: var(--fill-ok) !important;    color: var(--status-ok) !important;    border: 1px solid var(--status-ok); }
.badge.bg-danger   { background: var(--fill-error) !important; color: var(--status-error) !important; border: 1px solid var(--status-error); }
.badge.bg-warning  { background: var(--fill-warn) !important;  color: var(--status-warn) !important;  border: 1px solid var(--status-warn); }
.badge.bg-info     { background: var(--fill-info) !important;  color: var(--status-info) !important;  border: 1px solid var(--status-info); }
.badge.bg-primary  { background: var(--fill-info) !important;  color: var(--accent-secondary) !important; border: 1px solid var(--accent-secondary); }
.badge.bg-secondary, .badge.bg-light { background: var(--fill-idle) !important; color: var(--text-secondary) !important; border: 1px solid var(--status-idle); }
.badge.text-dark { color: inherit !important; }

/* Connection-type tags. */
.conn-local   { background: var(--fill-idle) !important; color: var(--text-secondary) !important; border: 1px solid var(--status-idle); }
.conn-ssh     { background: var(--fill-info) !important; color: var(--accent-secondary) !important; border: 1px solid var(--accent-secondary); }
.conn-proxmox-local, .conn-proxmox-ssh { background: var(--fill-warn) !important; color: var(--status-warn) !important; border: 1px solid var(--status-warn); }
.conn-network { background: var(--fill-info) !important; color: var(--accent-secondary) !important; border: 1px solid var(--accent-secondary); }
.conn-local, .conn-ssh, .conn-proxmox-local, .conn-proxmox-ssh, .conn-network { font-family: var(--fonts-mono); font-weight: 500; border-radius: 3px; }

.chip { font-weight: 500; padding: .35em .6em; }

/* Host config-state cell as a link to its job. */
.hs-link { display: inline-block; text-decoration: none; }
.hs-link:hover .st { filter: brightness(1.15); }

/* Dashboard recent-job chips. */
.job-chip {
  display: inline-flex; flex-direction: column; align-items: center;
  min-width: 52px; padding: .35rem .5rem; border-radius: 4px;
  border: 1px solid var(--border-subtle); background: var(--bg-inset);
  text-decoration: none; line-height: 1.1; transition: border-color .15s ease;
}
.job-chip:hover { border-color: var(--border-active); }
.job-chip .jc-id { font-family: var(--fonts-mono); font-weight: 700; font-size: .8rem; }
.job-chip .jc-mode { font-size: .58rem; text-transform: uppercase; letter-spacing: .03em; margin-top: .15rem; font-family: var(--fonts-mono); }
.jc-success { color: var(--status-ok); border-color: var(--status-ok); }
.jc-failed  { color: var(--status-error); border-color: var(--status-error); }
.jc-running { color: var(--status-info); border-color: var(--status-info); animation: pulse-cyan 2s ease-in-out infinite; }
.jc-other   { color: var(--text-secondary); }
.job-chip .jc-mode-apply { color: var(--accent-primary); font-weight: 700; }
.job-chip .jc-mode-check { color: var(--text-muted); }

/* --- Feed list: minimalist one-row-per-item list used by the dashboard's
   "Needs attention" and "Recent jobs" panels. A coloured status dot carries
   the signal; everything else stays quiet (mono id/name + muted meta). --- */
.feed { display: flex; flex-direction: column; }
.feed-row {
  display: flex; align-items: center; gap: .6rem;
  padding: .5rem .9rem; border-bottom: 1px solid var(--border-subtle);
  text-decoration: none; transition: background .15s ease;
}
.feed-row:last-child { border-bottom: 0; }
.feed-row:hover { background: var(--bg-elevated); }
.feed-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  flex: 0 0 8px; vertical-align: middle; background: var(--status-idle);
}
.feed-dot.s-ok    { background: var(--status-ok); }
.feed-dot.s-warn  { background: var(--status-warn); }
.feed-dot.s-error { background: var(--status-error); }
.feed-dot.s-info  { background: var(--status-info); animation: pulse-cyan 2s ease-in-out infinite; }
.feed-dot.s-idle  { background: var(--status-idle); }
.feed-main {
  font-family: var(--fonts-mono); color: var(--text-primary); font-size: .85rem; font-weight: 500;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.feed-tag { font-family: var(--fonts-mono); font-size: .62rem; text-transform: uppercase; letter-spacing: .04em; }
.feed-meta { margin-left: auto; font-family: var(--fonts-mono); font-size: .72rem; color: var(--text-secondary); white-space: nowrap; }
.feed-more { display: block; text-align: center; padding: .45rem; border-top: 1px solid var(--border-subtle); font-size: .75rem; color: var(--text-secondary); }
.feed-more:hover { color: var(--accent-secondary); background: var(--bg-elevated); }
.feed-empty { display: flex; align-items: center; justify-content: center; gap: .5rem; padding: 2.5rem 1rem; font-family: var(--fonts-mono); font-size: .85rem; }

/* --- Rich list rows (dashboard Attention / Recent Jobs) — higher-impact than
   the bare feed: a coloured left rail + a tinted status tile per row, with a
   severity tally strip and a "healthy" hero for the empty state. --- */
.lrow {
  display: flex; align-items: center; gap: .7rem;
  padding: .6rem .9rem; border-bottom: 1px solid var(--border-subtle);
  border-left: 3px solid var(--border-subtle); text-decoration: none;
  transition: background .15s ease, border-color .15s ease;
}
.lrow:last-child { border-bottom: 0; }
.lrow:hover { background: var(--bg-elevated); }
.lrow:hover .row-chev { color: var(--accent-secondary); transform: translateX(2px); }
.lrow.sv-ok    { border-left-color: var(--status-ok); }
.lrow.sv-warn  { border-left-color: var(--status-warn); }
.lrow.sv-error { border-left-color: var(--status-error); }
.lrow.sv-info  { border-left-color: var(--status-info); }
.lrow.sv-idle  { border-left-color: var(--status-idle); }
.row-tile {
  flex: 0 0 32px; width: 32px; height: 32px; border-radius: 6px;
  display: flex; align-items: center; justify-content: center; border: 1px solid transparent;
}
.row-tile.ok    { background: var(--fill-ok);    color: var(--status-ok);    border-color: var(--status-ok); }
.row-tile.warn  { background: var(--fill-warn);  color: var(--status-warn);  border-color: var(--status-warn); }
.row-tile.error { background: var(--fill-error); color: var(--status-error); border-color: var(--status-error); }
.row-tile.info  { background: var(--fill-info);  color: var(--status-info);  border-color: var(--status-info); }
.row-tile.idle  { background: var(--fill-idle);  color: var(--text-secondary); border-color: var(--status-idle); }
.row-tile.pulse { animation: pulse-cyan 2s ease-in-out infinite; }
.row-body { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column; }
.row-name { font-family: var(--fonts-mono); font-weight: 600; font-size: .85rem; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: flex; align-items: center; gap: .45rem; }
.row-sub  { font-size: .7rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.row-meta { flex: 0 0 auto; text-align: right; font-family: var(--fonts-mono); font-size: .72rem; color: var(--text-secondary); white-space: nowrap; }
.row-chev { flex: 0 0 auto; color: var(--text-muted); transition: color .15s ease, transform .15s ease; }
.list-scroll { max-height: 300px; overflow-y: auto; }

/* Severity tally strip */
.sev-summary { display: flex; gap: .5rem; padding: .7rem .9rem; border-bottom: 1px solid var(--border-subtle); }
.sev-pill { flex: 1; text-align: center; padding: .45rem .3rem; border-radius: 4px; border: 1px solid var(--border-subtle); background: var(--bg-inset); }
.sev-pill .sev-n { font-family: var(--fonts-mono); font-size: 1.35rem; font-weight: 700; line-height: 1; }
.sev-pill .sev-l { font-size: .58rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-secondary); }
.sev-pill.warn  { border-color: var(--status-warn); }  .sev-pill.warn .sev-n  { color: var(--status-warn); }
.sev-pill.error { border-color: var(--status-error); } .sev-pill.error .sev-n { color: var(--status-error); }
.sev-pill.info  { border-color: var(--status-info); }  .sev-pill.info .sev-n  { color: var(--status-info); }

/* Success-rate bar (recent jobs header) */
.rate-bar { height: 4px; background: var(--bg-inset); border-radius: 2px; overflow: hidden; display: flex; }
.rate-bar > i { display: block; height: 100%; }
.rate-bar .r-ok { background: var(--status-ok); } .rate-bar .r-err { background: var(--status-error); } .rate-bar .r-run { background: var(--status-info); }

/* Healthy / empty hero */
.hero-ok { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .5rem; padding: 2.25rem 1rem; text-align: center; }
.hero-badge { width: 54px; height: 54px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: var(--fill-ok); color: var(--status-ok); border: 1px solid var(--status-ok); box-shadow: 0 0 24px var(--accent-glow-cyan); }
.hero-title { font-family: var(--fonts-mono); color: var(--text-primary); font-weight: 600; }
.hero-sub { font-size: .75rem; color: var(--text-secondary); }

/* === COMPONENTS: BUTTONS ============================================== */
/* radius 3px keeps buttons reading as toggle switches / keycaps, not bubbles. */
.btn { border-radius: 3px; font-family: var(--fonts-sans); font-size: .85rem; transition: 150ms ease; display: inline-flex; align-items: center; gap: .4rem; }
.btn .btn-ico { display: inline-flex; }

/* Primary = amber, dark text. The single most important action on a screen. */
.btn-primary {
  background: var(--accent-primary); border-color: var(--accent-primary); color: #0B0F1A; font-weight: 600;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--accent-primary); border-color: var(--accent-primary); color: #0B0F1A;
  filter: brightness(1.08); box-shadow: 0 0 14px var(--accent-glow-amber);
}
/* "Apply changes" / promote — amber, slightly distinct from primary via outline weight. */
.btn-warning {
  background: var(--accent-primary); border-color: var(--accent-primary); color: #0B0F1A; font-weight: 600;
}
.btn-warning:hover { filter: brightness(1.08); box-shadow: 0 0 14px var(--accent-glow-amber); color: #0B0F1A; }

/* Secondary = cyan outline. Frequent, non-destructive (check, configure). */
.btn-outline-primary {
  border-color: var(--accent-secondary); color: var(--accent-secondary); background: transparent;
}
.btn-outline-primary:hover, .btn-outline-primary:focus {
  background: var(--accent-glow-cyan); border-color: var(--accent-secondary); color: var(--accent-secondary);
}

/* Ghost / neutral. */
.btn-secondary, .btn-outline-secondary {
  background: transparent; border-color: var(--border-subtle); color: var(--text-secondary);
}
.btn-secondary:hover, .btn-outline-secondary:hover {
  background: var(--bg-elevated); border-color: var(--border-active); color: var(--text-primary);
}
.btn-success { background: var(--status-ok); border-color: var(--status-ok); color: #051209; font-weight: 600; }
.btn-success:hover { filter: brightness(1.08); color: #051209; }

/* Danger = red outline that fills on hover. */
.btn-danger, .btn-outline-danger {
  background: transparent; border-color: var(--status-error); color: var(--status-error);
}
.btn-danger:hover, .btn-outline-danger:hover { background: var(--fill-error); color: var(--status-error); border-color: var(--status-error); }
.btn-link { color: var(--accent-secondary); }
.btn-check:checked + .btn-outline-secondary,
.btn-check:checked + .btn-outline-success,
.btn-check:checked + .btn-outline-warning {
  background: var(--bg-elevated); border-color: var(--border-active); color: var(--text-primary);
}

/* Flat, borderless icon action buttons — the single standard for row/toolbar
   actions. No border or fill at rest; colour on the icon carries the semantic
   (primary = state mutation, secondary = navigate/inspect, danger = destructive),
   with a subtle tinted fill on hover. Always pair with a title/aria-label. */
.act-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; padding: 0; line-height: 0;
  background: transparent; border: 0; border-radius: 4px;
  color: var(--text-secondary); cursor: pointer; text-decoration: none;
  transition: background 150ms ease, color 150ms ease;
}
.act-btn:hover, .act-btn:focus-visible { background: var(--bg-elevated); color: var(--text-primary); }
.act-btn:disabled { opacity: .45; cursor: not-allowed; }
.act-btn-primary { color: var(--accent-primary); }
.act-btn-primary:hover, .act-btn-primary:focus-visible { background: var(--accent-glow-amber); color: var(--accent-primary); }
.act-btn-secondary { color: var(--accent-secondary); }
.act-btn-secondary:hover, .act-btn-secondary:focus-visible { background: var(--accent-glow-cyan); color: var(--accent-secondary); }
.act-btn-success { color: var(--status-ok); }
.act-btn-success:hover, .act-btn-success:focus-visible { background: var(--fill-ok); color: var(--status-ok); }
.act-btn-danger { color: var(--status-error); }
.act-btn-danger:hover, .act-btn-danger:focus-visible { background: var(--fill-error); color: var(--status-error); }
/* Group of flat icon buttons sitting in a table's Actions column. */
.act-group { display: inline-flex; align-items: center; gap: .15rem; justify-content: flex-end; }

/* Busy state for a button whose form is submitting. The action endpoints await
   job startup before redirecting, so without this the trigger looks dead for a
   beat — the JS swaps its content for a spinner (preserving width) and adds this
   class to block further clicks until the page navigates. */
.is-busy { pointer-events: none; }
.is-busy .spinner-border { vertical-align: -.125em; }

/* === COMPONENTS: FORMS ================================================ */
.form-control, .form-select, .input-group-text {
  background: var(--bg-inset); border: 1px solid var(--border-subtle);
  color: var(--text-primary); border-radius: 3px;
}
.form-control:focus, .form-select:focus {
  background: var(--bg-inset); border-color: var(--border-active); color: var(--text-primary);
  box-shadow: 0 0 0 3px var(--accent-glow-cyan);
}
.form-control::placeholder { color: var(--text-muted); }
.form-label {
  font-size: .72rem; text-transform: uppercase; letter-spacing: .08em;
  color: var(--text-secondary); font-weight: 500; margin-bottom: .25rem;
}
.form-text { color: var(--text-muted); }
.form-check-input { background-color: var(--bg-inset); border-color: var(--border-subtle); }
.form-check-input:checked { background-color: var(--accent-secondary); border-color: var(--accent-secondary); }
.form-check-input:focus { box-shadow: 0 0 0 3px var(--accent-glow-cyan); border-color: var(--border-active); }
/* Inputs that hold ids/paths/hashes get the mono face. */
input.mono, textarea.mono { font-family: var(--fonts-mono); }

/* === COMPONENTS: TABS / BREADCRUMB ==================================== */
.nav-tabs { border-bottom-color: var(--border-subtle); }
.nav-tabs .nav-link {
  color: var(--text-secondary); border: 1px solid transparent; border-radius: 4px 4px 0 0;
  font-size: .85rem;
}
.nav-tabs .nav-link:hover { border-color: transparent; color: var(--text-primary); }
.nav-tabs .nav-link.active {
  background: var(--bg-surface); color: var(--text-primary);
  border-color: var(--border-subtle) var(--border-subtle) var(--bg-surface);
  border-top: 2px solid var(--accent-primary);
}
.tab-content.bg-white { background: var(--bg-surface) !important; border-color: var(--border-subtle) !important; }

.breadcrumb { font-family: var(--fonts-mono); font-size: .82rem; margin-bottom: 1rem; }
.breadcrumb-item, .breadcrumb-item a { color: var(--text-secondary); }
.breadcrumb-item a:hover { color: var(--accent-secondary); }
.breadcrumb-item.active { color: var(--text-primary); }
.breadcrumb-item + .breadcrumb-item::before { content: "/"; color: var(--text-muted); }  /* filesystem path */

/* === COMPONENTS: MODALS =============================================== */
.modal-backdrop.show { opacity: 1; background: rgba(0,0,0,0.75); }
.modal-backdrop { backdrop-filter: blur(6px); }
.modal-content {
  background: var(--bg-surface); border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--accent-primary);   /* hardware alert panel */
  border-radius: 4px;
}
.modal.show .modal-dialog { animation: modalIn 200ms cubic-bezier(0.16,1,0.3,1); }
.modal-header { background: var(--bg-inset); border-bottom: 1px solid var(--border-subtle); }
.modal-title { font-family: var(--fonts-mono); font-size: 1rem; color: var(--text-primary); }
.modal-footer { border-top: 1px solid var(--border-subtle); }
.btn-close { filter: invert(70%) sepia(10%) saturate(500%) hue-rotate(180deg); }
[data-theme="light"] .btn-close { filter: none; }

/* === COMPONENTS: ALERTS =============================================== */
.alert { border-radius: 4px; border: 1px solid var(--border-subtle); }
.alert-info    { background: var(--fill-info);  color: var(--text-primary); border-color: var(--status-info); }
.alert-warning { background: var(--fill-warn);  color: var(--text-primary); border-color: var(--status-warn); border-left: 3px solid var(--status-warn); }
.alert-danger  { background: var(--fill-error); color: var(--text-primary); border-color: var(--status-error); }
.alert-success { background: var(--fill-ok);    color: var(--text-primary); border-color: var(--status-ok); }

/* === COMPONENTS: CODE / LOGS / TERMINAL ============================== */
.log-view {
  background: var(--bg-inset); color: var(--text-code);
  border: 1px solid var(--border-subtle); border-left: 3px solid var(--accent-secondary);
  font-family: var(--fonts-mono); font-size: .82rem; line-height: 1.5;
  padding: 1rem; border-radius: 4px; height: 60vh;
  overflow-y: auto; white-space: pre-wrap; word-break: break-word;
}
.log-view .ok      { color: var(--status-ok); }
.log-view .changed { color: var(--status-warn); }
.log-view .failed  { color: var(--status-error); }
.log-view .recap   { color: var(--accent-secondary); }
code { color: var(--text-code); background: var(--bg-inset); padding: .05em .3em; border-radius: 3px; }

/* === COMPONENTS: SSE / REALTIME INDICATOR ============================= */
.sse-dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent-secondary); animation: pulse-cyan 2s infinite; vertical-align: middle;
}

/* === AUTH (login / setup) ============================================= */
.setup-wrap, .login-wrap {
  max-width: 380px; margin: 10vh auto;
  background: var(--bg-surface); border: 1px solid var(--border-subtle);
  border-top: 3px solid var(--accent-primary); border-radius: 4px; padding: 1.75rem;
}
.login-prompt { color: var(--accent-secondary); font-family: var(--fonts-mono); }

/* === ANIMATIONS ====================================================== */
@keyframes fadeSlideUp { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse-cyan  { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes pulse-amber { 0%,100% { opacity: 1; box-shadow: 0 0 6px var(--accent-glow-amber); } 50% { opacity: .7; box-shadow: 0 0 12px var(--accent-glow-amber); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes modalIn { from { opacity: 0; transform: scale(0.97); } to { opacity: 1; transform: scale(1); } }

/* Staggered entrance for KPI strip — runs once on page load only. */
.anim-in { animation: fadeSlideUp 320ms ease both; }
.anim-in:nth-child(1) { animation-delay: 0ms; }
.anim-in:nth-child(2) { animation-delay: 60ms; }
.anim-in:nth-child(3) { animation-delay: 120ms; }
.anim-in:nth-child(4) { animation-delay: 180ms; }
.anim-in:nth-child(5) { animation-delay: 240ms; }
.anim-in:nth-child(6) { animation-delay: 300ms; }
/* HTMX-injected content fades in (hx-swap transition). */
.htmx-added { animation: fadeIn 180ms ease; }

/* === UTILITIES ======================================================= */
.mono { font-family: var(--fonts-mono); }
.text-code { color: var(--text-code) !important; }
.text-accent { color: var(--accent-primary) !important; }
.text-accent-2 { color: var(--accent-secondary) !important; }
.bg-inset { background: var(--bg-inset) !important; }
.bg-body-tertiary { background: var(--bg-inset) !important; }
.border, .border-top, .border-bottom, .border-start, .border-end { border-color: var(--border-subtle) !important; }
.text-success { color: var(--status-ok) !important; }
.text-danger  { color: var(--status-error) !important; }
.text-warning { color: var(--status-warn) !important; }
.text-primary { color: var(--accent-secondary) !important; }
.link-secondary { color: var(--text-secondary) !important; }
.progress { background: var(--bg-inset); border-radius: 3px; }
.progress-bar.bg-success { background: var(--status-ok) !important; }
.progress-bar.bg-warning { background: var(--status-warn) !important; }
.progress-bar.bg-secondary { background: var(--status-idle) !important; }
.spinner-border { color: var(--accent-secondary); }
footer { color: var(--text-muted); border-color: var(--border-subtle) !important; }

/* === SCROLLBARS ====================================================== */
* { scrollbar-width: thin; scrollbar-color: var(--border-subtle) transparent; }
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-subtle); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-active); }
.log-view::-webkit-scrollbar { width: 6px; }
.log-view::-webkit-scrollbar-thumb { background: var(--border-active); }

/* === HOSTS TREE ===================================================== */
/* Collapsible hierarchy in the Managed-hosts table. Children are sibling rows
   (data-parent); the chevron rotates when its node is open. */
.host-tree .tree-name { white-space: nowrap; }
.tree-indent { display: inline-block; width: calc(var(--d, 0) * 1.15rem); }
.tree-toggle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 1.1rem; height: 1.1rem; padding: 0; margin-right: .15rem;
  border: 0; background: transparent; color: var(--text-muted); cursor: pointer;
  transition: transform .12s ease;
}
.tree-toggle:hover { color: var(--text); }
.tree-row.is-open > .tree-name > .tree-toggle { transform: rotate(90deg); }
.tree-toggle-spacer { display: inline-block; width: 1.25rem; }
.tree-ico { margin-right: .25rem; vertical-align: -2px; }
/* Parent bands read as containers; leaves sit flush. */
.host-tree .tree-vhost > td,
.host-tree .tree-group > td,
.host-tree .tree-stack > td { background: var(--fill-subtle, rgba(127,127,127,.06)); }
.host-tree .tree-synthetic .tree-name { color: var(--text-muted); }
/* Docker containers and compose stacks are synthetic but keep a legible name. */
.host-tree .tree-docker .tree-name,
.host-tree .tree-stack .tree-name { color: var(--text); }
.host-tree .tree-docker .tree-ico,
.host-tree .tree-stack .tree-ico { color: var(--bs-info, #0dcaf0); }

/* === REDUCED MOTION ================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}
