:root {
  --bg: #eef1f4;
  --card: #ffffff;
  --ink: #1c2530;
  --muted: #667181;
  --line: #e6e9ee;
  --primary: #7c3aed;
  --primary-ink: #ffffff;
  --brand: #8b5cf6;
  --ok: #12805c;
  --ok-bg: #e3f3ec;
  --warn: #9a5b00;
  --warn-bg: #fbeecf;
  --crit: #c5221f;
  --crit-bg: #fce8e6;
  --radius: 12px;
  --elev-1: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .10);
  --elev-2: 0 2px 6px rgba(15, 23, 42, .08), 0 4px 14px rgba(15, 23, 42, .10);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1116; --card: #171c24; --ink: #e6eaef; --muted: #97a2b2;
    --line: #262d38; --primary: #a78bfa; --primary-ink: #14101f;
    --ok: #46cd97; --ok-bg: #12281f; --warn: #e0a458; --warn-bg: #2e2410;
    --crit: #f2938c; --crit-bg: #331a19;
    --elev-1: 0 1px 2px rgba(0, 0, 0, .4);
    --elev-2: 0 4px 16px rgba(0, 0, 0, .5);
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.55 "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono, pre { font-family: ui-monospace, "Roboto Mono", SFMono-Regular, Menlo, monospace; }
pre { background: var(--bg); padding: 10px; border-radius: 8px; overflow-x: auto; font-size: 13px; }
pre.code-block { border: 1px solid var(--line); border-left: 3px solid var(--primary); line-height: 1.5; }
.card h3 { font-size: 13px; font-weight: 600; margin: 14px 0 6px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
h1 { font-size: 24px; font-weight: 500; margin: 0 0 4px; letter-spacing: -.01em; }
h2 { font-size: 16px; font-weight: 600; margin: 0 0 14px; }
h3 { font-size: 11px; font-weight: 700; margin: 20px 0 10px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.small { font-size: 13px; }
.muted { color: var(--muted); }
.mt { margin-top: 16px; }

/* layout */
.topbar {
  display: flex; align-items: center; gap: 22px;
  padding: 0 24px; height: 56px; background: var(--card);
  box-shadow: var(--elev-1); position: sticky; top: 0; z-index: 10;
}
.topbar .brand { display: flex; align-items: center; gap: 9px; font-weight: 600; color: var(--ink); font-size: 15px; }
.topbar .brand:hover { text-decoration: none; }
.brand-mark { width: 26px; height: 26px; display: block; }
.brand-name { letter-spacing: -.005em; }
.topbar nav { display: flex; gap: 4px; flex: 1; }
.topbar nav a {
  color: var(--muted); font-weight: 500; font-size: 14px; padding: 6px 12px; border-radius: 8px;
}
.topbar nav a.active { color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent); }
.topbar nav a:hover { color: var(--ink); text-decoration: none; background: var(--bg); }
.topbar nav a.active:hover { color: var(--primary); }
.topbar .logout { color: var(--muted); font-size: 13px; }
.wrap { max-width: 1120px; margin: 24px auto; padding: 0 24px; }
.login-wrap { max-width: 380px; margin: 9vh auto; padding: 0 22px; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; }
.page-head-actions { display: flex; align-items: center; gap: 12px; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 18px; }
@media (max-width: 860px) { .cols { grid-template-columns: 1fr; } }

/* cards */
.card {
  background: var(--card); border-radius: var(--radius); padding: 20px;
  box-shadow: var(--elev-1); margin-bottom: 18px;
}
.card.empty { text-align: center; padding: 48px; }
.login-card { display: flex; flex-direction: column; gap: 12px; align-items: stretch; }
.login-card h1 { text-align: center; margin-top: 4px; }
.login-mark { width: 56px; height: 56px; align-self: center; }

/* tabs */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.tab {
  display: inline-block; cursor: pointer; text-decoration: none;
  padding: 12px 20px; font-weight: 600; font-size: 14px; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--ink); text-decoration: none; background: var(--card); border-radius: 8px 8px 0 0; }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }

/* forms */
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 12px; color: var(--muted); }
label.checkbox { display: flex; align-items: center; gap: 8px; font-weight: 500; }
input, select, textarea {
  width: 100%; margin-top: 5px; padding: 9px 11px; font: inherit;
  background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 8px;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}
label.checkbox input { width: auto; margin: 0; }
.hint { display: block; font-weight: 400; color: var(--muted); margin-top: 4px; }
.stack > * { margin-bottom: 4px; }
.grid-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 16px; }
.grid-form .wide { grid-column: 1 / -1; }
.row-between { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.form-error, .banner-warn code { color: var(--crit); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: none;
  background: var(--bg); color: var(--ink); border-radius: 8px; font: inherit;
  font-weight: 600; font-size: 14px; cursor: pointer; transition: background .12s, box-shadow .12s;
}
.btn:hover { background: var(--line); text-decoration: none; }
.btn-primary { background: var(--primary); color: var(--primary-ink); box-shadow: var(--elev-1); }
.btn-primary:hover { background: var(--primary); filter: brightness(1.06); box-shadow: var(--elev-2); }
.btn-danger-ghost { color: var(--crit); background: none; }
.btn-danger-ghost:hover { background: var(--crit-bg); }
.btn-tiny { padding: 4px 10px; font-size: 12px; }
button[disabled] { opacity: .5; cursor: not-allowed; }

/* tables — Material data table */
.table { width: 100%; border-collapse: collapse; }
.table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--muted); font-weight: 700; padding: 10px 10px; border-bottom: 1px solid var(--line);
}
.table td { padding: 11px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.table tbody tr:last-child td { border-bottom: none; }
.table tbody tr:hover td { background: color-mix(in srgb, var(--primary) 4%, transparent); }
.table tr[onclick] { cursor: pointer; }
.table.small td, .table.small th { font-size: 12.5px; padding: 8px 10px; }
.table-scroll { overflow-x: auto; }

/* pills / badges / tags / chips */
.pill, .badge, .tag, .chip {
  display: inline-flex; align-items: center; padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600; line-height: 1.4;
}
.pill.ok, .badge-ok { background: var(--ok-bg); color: var(--ok); }
.pill.down, .badge-crit, .badge-critical { background: var(--crit-bg); color: var(--crit); }
.pill.unknown, .badge-warning, .badge-warn { background: var(--warn-bg); color: var(--warn); }
.pill.muted, .pill, .badge-info { background: var(--bg); color: var(--muted); }
.tag-primary { background: color-mix(in srgb, var(--primary) 14%, transparent); color: var(--primary); }
.tag-backup { background: var(--warn-bg); color: var(--warn); }
.tag-client { background: var(--ok-bg); color: var(--ok); }
.chip-priority-urgent { background: var(--crit-bg); color: var(--crit); }
.chip-priority-high { background: var(--warn-bg); color: var(--warn); }
.chip-priority-normal { background: var(--bg); color: var(--muted); }
.chip-priority-low { background: var(--bg); color: var(--muted); }
.chip-status-open { background: var(--crit-bg); color: var(--crit); }
.chip-status-in_progress { background: color-mix(in srgb, var(--primary) 14%, transparent); color: var(--primary); }
.chip-status-done { background: var(--ok-bg); color: var(--ok); }
.chip-status-cancelled { background: var(--bg); color: var(--muted); }

/* banners */
.banner { padding: 12px 16px; font-size: 14px; border-radius: 8px; margin-bottom: 14px; }
.banner-warn { background: var(--warn-bg); color: var(--warn); }
.banner-ok { background: var(--ok-bg); color: var(--ok); }
.topbar + .banner, header + .banner { border-radius: 0; margin-bottom: 0; }

/* site cards */
.site-card { color: var(--ink); display: block; transition: box-shadow .12s; }
.site-card:hover { text-decoration: none; box-shadow: var(--elev-2); }
.site-card-head { display: flex; justify-content: space-between; align-items: center; }
.site-card h3 { margin: 0; text-transform: none; letter-spacing: 0; color: var(--ink); font-size: 16px; font-weight: 600; }
.health-row { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0 8px; }
.metric-strip { display: flex; flex-wrap: wrap; gap: 10px; font-size: 12.5px; color: var(--muted); }
.cred-row { display: flex; justify-content: space-between; gap: 14px; padding: 16px 0; border-top: 1px solid var(--line); }
.cred-row:first-of-type { border-top: none; }
.cred-actions { display: flex; flex-direction: column; gap: 6px; align-items: flex-end; }
.wizard-steps ol { padding-left: 20px; }
.wizard-steps li { margin-bottom: 12px; }
.wizard-steps ul { margin: 6px 0; }
.alert-list ul { list-style: none; padding: 0; margin: 0; }
.alert-list li { padding: 8px 0; border-bottom: 1px solid var(--line); }

/* stat tiles */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.stat {
  background: var(--bg); border-radius: 10px; padding: 14px 16px; display: flex; flex-direction: column; gap: 2px;
}
.stat-value { font-size: 22px; font-weight: 600; letter-spacing: -.01em; }
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 700; }
.stat-sub { font-size: 12px; color: var(--muted); }
.stat.alert .stat-value { color: var(--crit); }

/* service links (Homer-style tiles) */
.service-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.service-tile {
  display: flex; flex-direction: column; gap: 3px; padding: 14px 16px;
  border-radius: 10px; background: var(--bg); color: var(--ink); transition: box-shadow .12s;
}
.service-tile:hover { box-shadow: var(--elev-1); text-decoration: none; }
.service-icon { font-size: 22px; line-height: 1; }
.service-label { font-weight: 600; font-size: 14px; }
.service-desc { font-size: 12px; color: var(--muted); }

/* UniFi port grid (compact, on the devices list) */
.port-grid { display: flex; flex-wrap: wrap; gap: 3px; }
.port {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 18px; border-radius: 3px; font-size: 10px; font-weight: 700;
}
.port-up { background: var(--ok-bg); color: var(--ok); }
.port-down { background: var(--bg); color: var(--muted); border: 1px solid var(--line); }

/* switch port viewer */
.port-panel { display: flex; flex-wrap: wrap; gap: 6px; }
.port-box {
  width: 62px; height: 58px; border-radius: 6px; padding: 5px 3px 4px;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-size: 11px; border: 1px solid transparent; overflow: hidden;
}
.port-box.sfp { width: 72px; }
.port-box.up { background: var(--ok-bg); color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.port-box.down { background: var(--bg); color: var(--muted); border-color: var(--line); }
.port-box.uplink { border-color: var(--primary); border-width: 2px; }
.port-ul { color: var(--primary); font-size: 10px; }
.port-num { font-weight: 800; font-size: 13px; line-height: 1; }
.port-speed { font-weight: 700; font-size: 11px; line-height: 1; }
.port-tags { display: flex; align-items: center; gap: 2px; line-height: 1; max-width: 100%; }
.port-poe { font-size: 10px; }
.port-sfp, .port-lag {
  background: color-mix(in srgb, var(--primary) 18%, transparent); color: var(--primary);
  border-radius: 3px; padding: 0 3px; font-size: 8px; font-weight: 700; white-space: nowrap;
}
.port-key { display: inline-block; width: 12px; height: 12px; border-radius: 3px; vertical-align: middle; }
.port-key.up { background: var(--ok-bg); border: 1px solid var(--ok); }
.port-key.down { background: var(--bg); border: 1px solid var(--line); }

/* topology map */
.topo { max-width: 100%; }
.topo-edge { fill: none; stroke: var(--line); stroke-width: 2; }
.topo-node { stroke-width: 1.5; }
.topo-label { font-size: 12px; font-weight: 600; fill: var(--ink); }
.topo-ok rect, rect.topo-ok { fill: var(--ok-bg); stroke: var(--ok); }
.topo-down rect, rect.topo-down { fill: var(--crit-bg); stroke: var(--crit); }
.topo-unknown rect, rect.topo-unknown { fill: var(--bg); stroke: var(--line); }
.topo a:hover .topo-node { stroke-width: 2.5; }