/* CMMS: modern theme. Light by default, dark via OS setting or the toggle (data-theme on <html>). */

/* ---------- tokens ---------- */
:root {
  color-scheme: light;
  --bg: #f4f5f7;          /* page */
  --surface: #ffffff;     /* cards, tables */
  --surface-2: #f8f9fb;   /* zebra rows, inputs */
  --border: #e3e6eb;
  --text: #111827;
  --text-2: #4b5563;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-ink: #ffffff;
  --accent-soft: #e8efff;
  --ok: #15803d;   --ok-soft: #e7f6ec;
  --bad: #c62828;  --bad-soft: #fdecec;
  --warn: #92400e; --warn-soft: #fff4d6; --warn-line: #f2c94c;
  --sidebar: #ffffff;
  --sidebar-ink: #374151;
  --sidebar-active: #eef2ff;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
  --radius: 10px;
  --chart-surface: #ffffff;
  --chart-grid: #eef0f3;
  --chart-axis: #6b7280;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1d212a;
  --border: #2a2f3a;
  --text: #e5e7eb;
  --text-2: #b6bcc8;
  --muted: #8b93a3;
  --accent: #60a5fa;
  --accent-ink: #0b1220;
  --accent-soft: #1b2a44;
  --ok: #4ade80;   --ok-soft: #12301f;
  --bad: #f87171;  --bad-soft: #3a1717;
  --warn: #fcd34d; --warn-soft: #3a2f10; --warn-line: #a1800f;
  --sidebar: #12151b;
  --sidebar-ink: #c3c8d2;
  --sidebar-active: #1b2a44;
  --shadow: 0 1px 2px rgba(0, 0, 0, .4);
  --chart-surface: #171a21;
  --chart-grid: #262b35;
  --chart-axis: #9aa3b2;
}

/* ---------- base ---------- */
* { box-sizing: border-box; }
html { background: var(--bg); }
body {
  margin: 0; min-height: 100vh; display: flex;
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, "Helvetica Neue", Arial, sans-serif;
  color: var(--text); background: var(--bg);
  font-variant-numeric: tabular-nums;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { font-size: 22px; font-weight: 650; margin: 4px 0 14px; letter-spacing: -.01em; }
h2 { font-size: 16px; font-weight: 600; margin: 22px 0 10px; }
h3 { font-size: 14px; font-weight: 600; }
code, .mono, pre { font-family: ui-monospace, "Cascadia Mono", "SF Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace; font-size: 12.5px; }
.muted { color: var(--muted); font-size: 12.5px; }

/* ---------- sidebar ---------- */
nav {
  width: 232px; flex-shrink: 0; background: var(--sidebar); border-right: 1px solid var(--border);
  padding: 16px 12px; position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
nav .brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 16px; text-decoration: none; color: var(--text); }
nav .brand .logo {
  width: 34px; height: 34px; border-radius: 9px; background: var(--accent); color: var(--accent-ink);
  display: grid; place-items: center; font-weight: 800; font-size: 13px; letter-spacing: .5px;
}
nav .brand b { display: block; font-size: 15px; letter-spacing: .5px; }
nav .brand small { display: block; font-size: 11px; color: var(--muted); line-height: 1.2; }
nav h3 {
  margin: 14px 8px 4px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); background: none;
}
nav a.nav { display: flex; align-items: center; gap: 9px; padding: 6px 10px; border-radius: 7px; color: var(--sidebar-ink); font-size: 13.5px; }
nav a.nav:hover { background: var(--surface-2); text-decoration: none; }
nav a.nav.active { background: var(--sidebar-active); color: var(--accent); font-weight: 600; }
nav a.nav svg { width: 16px; height: 16px; flex-shrink: 0; opacity: .8; }
nav .who { margin: 18px 8px 0; padding-top: 12px; border-top: 1px solid var(--border); font-size: 12.5px; color: var(--text-2); }
nav .who a { margin-right: 10px; }
.navtoggle { display: none; }
.navhead { display: flex; align-items: center; }
.iconbtn svg { width: 16px; height: 16px; display: block; }
:root .t-light, :root[data-theme="dark"] .t-dark { display: none; }
:root[data-theme="dark"] .t-light { display: inline; }
.tile .v.na { color: var(--muted); }

/* ---------- main + top bar ---------- */
main { flex: 1; min-width: 0; padding: 16px 28px 40px; }
.banner-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin: -16px -28px 18px; padding: 10px 28px; background: var(--surface); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.banner { display: inline-flex; align-items: center; gap: 8px; padding: 4px 12px; border-radius: 999px; font-size: 12.5px; font-weight: 500; }
.banner::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.banner.ok { background: var(--ok-soft); color: var(--ok); }
.banner.bad { background: var(--bad-soft); color: var(--bad); font-weight: 600; }
.topright { margin-left: auto; display: flex; gap: 8px; align-items: center; }

/* ---------- buttons ---------- */
.btn, .pollbtn, button, .rangebtn {
  font: inherit; font-size: 13px; font-weight: 500; border-radius: 7px; cursor: pointer;
  padding: 5px 12px; border: 1px solid var(--border); background: var(--surface); color: var(--text);
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
}
.btn:hover, .pollbtn:hover, button:hover, .rangebtn:hover { background: var(--surface-2); text-decoration: none; }
.pollbtn, .btn.primary, button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.pollbtn:hover, .btn.primary:hover { filter: brightness(1.08); background: var(--accent); }
.pollbtn:disabled { opacity: .7; cursor: wait; }
.pollbtn.danger { background: var(--bad); border-color: var(--bad); color: #fff; }
.iconbtn { padding: 5px 9px; }
.rangebox { margin-left: 10px; display: inline-flex; gap: 4px; vertical-align: middle; }
.rangebtn { padding: 2px 10px; font-size: 12px; }
.rangebtn.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

/* ---------- cards ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 16px; }

/* ---------- tables ---------- */
table.grid {
  border-collapse: separate; border-spacing: 0; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: clip;   /* clip, not hidden: hidden would make the table the sticky header's scroll box */
}
.grid th {
  background: var(--surface-2); color: var(--text-2); font-size: 12px; font-weight: 600; text-align: left;
  padding: 7px 10px; border-bottom: 1px solid var(--border); white-space: nowrap; position: sticky; top: 49px; z-index: 2;
}
.grid th a { color: var(--text-2); }
.grid th a:hover { color: var(--accent); text-decoration: none; }
.grid th small { display: block; font-size: 10.5px; color: var(--muted); font-weight: 400; }
.grid td { padding: 4px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
.grid tr:last-child td { border-bottom: 0; }
.grid tr:nth-child(even) td { background: var(--surface-2); }
.grid tr:hover td { background: var(--accent-soft); }
.grid td a { color: var(--accent); }
table.kv th { position: static; }
.kv td:first-child { color: var(--text-2); white-space: nowrap; }
.num { text-align: right; }
.hl { background: var(--warn-soft) !important; color: var(--warn); font-weight: 600; box-shadow: inset 3px 0 0 var(--warn-line); }
.bad { color: var(--bad); font-weight: 600; }
.ok { color: var(--ok); }
tr.warn td:first-child { box-shadow: inset 3px 0 0 var(--bad); }
tr.total td { font-weight: 700; border-top: 2px solid var(--border); }
tr.dim td { color: var(--muted); }
td.wrap { white-space: normal; max-width: 520px; }
td.actions { white-space: nowrap; }
.list td { white-space: nowrap; }

/* ---------- forms ---------- */
input, select, textarea {
  font: inherit; font-size: 13px; padding: 6px 9px; width: 240px; color: var(--text);
  background: var(--surface); border: 1px solid var(--border); border-radius: 7px;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }
input[type=checkbox] { width: auto; }
form.inline { display: inline; }

/* ---------- messages ---------- */
.err, .okmsg, .loading, .filter, .pingbox {
  border-radius: var(--radius); padding: 10px 14px; margin: 8px 0 12px; max-width: 900px; border: 1px solid var(--border);
}
.err { background: var(--bad-soft); border-color: transparent; color: var(--text); }
.err b { color: var(--bad); }
.okmsg { background: var(--ok-soft); border-color: transparent; color: var(--ok); }
.loading { background: var(--accent-soft); border-color: transparent; }
.filter { display: inline-block; background: var(--accent-soft); border-color: transparent; padding: 6px 12px; }
.spinner {
  display: inline-block; width: 14px; height: 14px; margin-right: 8px; vertical-align: -2px;
  border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite;
}
.pollbtn .spinner { border-color: rgba(255,255,255,.4); border-top-color: var(--accent-ink); width: 11px; height: 11px; margin-right: 2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.refresh { margin-top: 18px; color: var(--muted); font-size: 12.5px; }
.refresh a { margin: 0 4px; } .refresh a.on { font-weight: 700; }
.tag { display: inline-block; padding: 1px 9px; border-radius: 999px; font-weight: 600; font-size: 12px; }
.tag.on { background: var(--ok-soft); color: var(--ok); } .tag.off { background: var(--surface-2); color: var(--muted); }
.lvl-error, .lvl-critical, .lvl-alert, .lvl-emergency { color: var(--bad); font-weight: 600; }
.lvl-warning, .warnc { color: var(--warn); }

/* ---------- layout helpers ---------- */
.cols { display: flex; gap: 20px; flex-wrap: wrap; align-items: flex-start; }
pre.sysdescr { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 10px 14px; margin: 0; max-width: 640px; white-space: pre-wrap; }

/* ---------- summary tiles ---------- */
.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); gap: 12px; margin: 0 0 18px; max-width: 1200px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 12px 14px; display: block; color: var(--text); }
a.tile:hover { border-color: var(--accent); text-decoration: none; }
.tile .k { font-size: 12px; color: var(--muted); font-weight: 500; }
.tile .v { font-size: 26px; font-weight: 700; letter-spacing: -.02em; margin-top: 2px; }
.tile .v small { font-size: 13px; font-weight: 500; color: var(--muted); margin-left: 2px; }
.tile .s { font-size: 12px; color: var(--text-2); margin-top: 2px; }
.tile.good .v { color: var(--ok); } .tile.alert .v { color: var(--bad); } .tile.warn .v { color: var(--warn); }

/* ---------- ping ---------- */
.pingbox { background: var(--surface); }
.pingbox b { margin-right: 8px; } .pingbox .pollbtn { margin-right: 4px; }
.pingseq { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 4px; }
.pkt { min-width: 34px; text-align: center; font: 12px ui-monospace, Menlo, Consolas, monospace; padding: 2px 5px; background: var(--ok-soft); color: var(--ok); border-radius: 5px; }
.pkt.lost { background: var(--bad-soft); color: var(--bad); font-weight: 700; }

/* ---------- charts ---------- */
.chart { max-width: 1100px; margin: 6px 0 4px; background: var(--chart-surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 6px 4px 2px; }
.chart .u-title { font-size: 13px; font-weight: 600; color: var(--text); text-align: left; padding-left: 60px; }
.chart .u-legend { font-size: 12px; color: var(--text-2); }
.chart .u-legend .u-marker { border-radius: 2px; }
.chart.clickable { cursor: pointer; } .chart.clickable:hover { border-color: var(--accent); }
.nodata { padding: 40px 10px; margin: 0; text-align: center; }
.legend-strip { font-size: 12px; color: var(--text-2); margin: 0 0 10px; }
.legend-strip .sw { display: inline-block; width: 12px; height: 12px; vertical-align: -2px; margin: 0 4px 0 10px; border-radius: 3px; }
.sw.good { background: #0ca30c; } .sw.crit { background: #d03b3b; } .sw.nodata { background: var(--border); }
.ggrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 18px; max-width: 1300px; }
@media (max-width: 1000px) { .ggrid { grid-template-columns: minmax(0, 1fr); } }
.gt { font-size: 13px; margin: 12px 0 4px; } .gt a { color: var(--text); } .gt a:hover { color: var(--accent); }
.gperiod { margin-bottom: 18px; padding-bottom: 8px; border-bottom: 1px solid var(--border); max-width: 1100px; }
.gstats { margin-top: 6px; } .gstats td.slabel { font-weight: 600; }
.slabel.s0.k-modems { color: var(--ok); } .slabel.s1.k-modems { color: var(--bad); }
.slabel.s0.k-traffic, .slabel.s0.k-snr { color: #2a78d6; } .slabel.s1.k-traffic { color: #d95926; }
.minigraph { max-width: 720px; }

/* ---------- login ---------- */
.login-body { display: block; background: #070b2e; min-height: 100vh; }
.login-wrap { display: flex; min-height: 100vh; }
.hero { flex: 1.4; background-size: cover; background-position: center bottom; display: flex; align-items: flex-start; }
.hero-text { padding: 56px 48px; color: #fff; max-width: 640px; text-shadow: 0 2px 12px rgba(0,0,0,.5); }
.hero-text h1 { font-size: 38px; line-height: 1.15; margin: 0 0 14px; color: #fff; }
.hero-text p { font-size: 16px; color: #cfe6ff; margin: 0; }
.login-panel { flex: 1; display: flex; align-items: center; justify-content: center; background: var(--bg); padding: 24px; }
.login-card { width: 100%; max-width: 360px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 32px 28px; box-shadow: 0 10px 40px rgba(10,20,80,.15); }
.login-logo { width: 44px; height: 44px; border-radius: 11px; background: var(--accent); color: var(--accent-ink); display: grid; place-items: center; font-weight: 800; font-size: 14px; }
.login-card h2 { margin: 16px 0 16px; font-size: 20px; }
.login-card label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 14px; }
.login-card input { display: block; width: 100%; margin-top: 5px; padding: 9px 11px; font-size: 15px; }
.login-card button { width: 100%; justify-content: center; padding: 10px; font-size: 15px; font-weight: 600; background: var(--accent); border-color: var(--accent); color: var(--accent-ink); margin-top: 4px; }
.login-err { background: var(--bad-soft); color: var(--bad); border-radius: 7px; padding: 8px 10px; margin-bottom: 14px; font-size: 13px; }
.login-foot { font-size: 11.5px; color: var(--muted); margin: 16px 0 0; text-align: center; }

/* ---------- small screens ---------- */
@media (max-width: 860px) {
  body { flex-direction: column; }
  nav { width: auto; height: auto; position: static; border-right: 0; border-bottom: 1px solid var(--border); padding: 10px 12px; }
  nav .navbody { display: none; }
  nav.open .navbody { display: block; }
  .navtoggle { display: inline-flex; margin-left: auto; }
  nav .brand { padding-bottom: 4px; }
  main { padding: 12px 14px 30px; }
  .banner-row { margin: -12px -14px 14px; padding: 8px 14px; }
  .grid th { top: 0; }
  table.grid { display: block; max-width: 100%; overflow-x: auto; }
  .login-wrap { flex-direction: column; }
  .hero { min-height: 240px; flex: none; }
  .hero-text { padding: 28px 20px; } .hero-text h1 { font-size: 26px; }
}

/* ---------- modem reset ---------- */
.resetbtn { padding: 2px 10px; font-size: 12px; color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, var(--border)); background: var(--surface); }
.resetbtn:hover { background: var(--bad-soft); }
.resetbtn:disabled { opacity: .75; cursor: wait; }
p.actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
p.actions .resetbtn { padding: 5px 12px; font-size: 13px; }
.okmsg-inline { color: var(--ok); font-size: 12.5px; font-weight: 500; }
.errmsg-inline { color: var(--bad); font-size: 12.5px; font-weight: 600; }

/* ---------- subscribers ---------- */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 0 0 8px; max-width: 1200px; }
.toolbar .spacer { flex: 1; }
.req { color: var(--bad); font-weight: 600; }
a.btn.primary { color: var(--accent-ink); }

/* ---------- first run ---------- */
.login-hint { background: var(--accent-soft); color: var(--text); border-radius: 7px; padding: 8px 10px; margin-bottom: 14px; font-size: 13px; }
.banner a { color: inherit; text-decoration: underline; margin-left: 6px; }