/* BluPulse — premium monitoring UI */
:root {
  --bg: #060a14;
  --bg-2: #0a1020;
  --surface: rgba(255, 255, 255, .035);
  --surface-solid: #0e1526;
  --surface-2: rgba(255, 255, 255, .06);
  --border: rgba(255, 255, 255, .08);
  --border-2: rgba(255, 255, 255, .14);
  --text: #e8edf8;
  --text-2: #b4bed3;
  --muted: #7f8ba6;
  --accent: #4c8dff;
  --accent-2: #22d3ee;
  --violet: #9b7bff;
  --ok: #2fd47c;
  --warn: #f6b042;
  --crit: #ff5470;
  --info: #5ab8ff;
  --radius: 18px;
  --radius-sm: 11px;
  --shadow: 0 10px 40px -12px rgba(0, 0, 0, .55);
  --glow: 0 0 0 1px rgba(76, 141, 255, .35), 0 8px 30px -8px rgba(76, 141, 255, .35);
  --font: 'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #f1f4fa;
  --bg-2: #e8edf7;
  --surface: rgba(255, 255, 255, .78);
  --surface-solid: #ffffff;
  --surface-2: rgba(15, 30, 70, .05);
  --border: rgba(15, 30, 70, .09);
  --border-2: rgba(15, 30, 70, .16);
  --text: #131b2e;
  --text-2: #3d4963;
  --muted: #6b7690;
  --accent: #2f6bf0;
  --accent-2: #0ab3d4;
  --violet: #7c5ce6;
  --ok: #17a85b;
  --warn: #d98a0b;
  --crit: #e5304f;
  --shadow: 0 10px 34px -14px rgba(25, 45, 100, .25);
  --glow: 0 0 0 1px rgba(47, 107, 240, .35), 0 8px 28px -10px rgba(47, 107, 240, .35);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font); font-size: 14px; line-height: 1.5; color: var(--text);
  background: var(--bg); min-height: 100vh; -webkit-font-smoothing: antialiased;
}
.backdrop {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 500px at 12% -8%, rgba(76, 141, 255, .20), transparent 60%),
    radial-gradient(700px 420px at 100% 0%, rgba(155, 123, 255, .14), transparent 60%),
    radial-gradient(800px 500px at 50% 120%, rgba(34, 211, 238, .08), transparent 60%),
    var(--bg);
}
[data-theme="light"] .backdrop {
  background:
    radial-gradient(900px 500px at 12% -8%, rgba(47, 107, 240, .12), transparent 60%),
    radial-gradient(700px 420px at 100% 0%, rgba(124, 92, 230, .09), transparent 60%),
    var(--bg);
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, p { margin: 0; }
code, .mono { font-family: var(--mono); font-size: .92em; }
code { background: var(--surface-2); padding: 2px 7px; border-radius: 6px; }
.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.center { text-align: center; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.pad { padding: 4px 22px 22px; }
.mt { margin-top: 12px; }
.ic { width: 18px; height: 18px; flex: none; }
[hidden] { display: none !important; }

/* ---------- layout ---------- */
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: 248px; z-index: 30; display: flex; flex-direction: column;
  padding: 22px 14px 16px; background: linear-gradient(180deg, rgba(14, 21, 38, .85), rgba(8, 13, 26, .9));
  border-right: 1px solid var(--border); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
[data-theme="light"] .sidebar { background: rgba(255, 255, 255, .8); }
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 10px 22px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 17px; letter-spacing: .2px; }
.brand-text small { color: var(--muted); font-size: 11.5px; letter-spacing: .6px; text-transform: uppercase; }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px; color: var(--text-2);
  font-weight: 500; transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.nav-item.active {
  color: var(--text); background: linear-gradient(90deg, rgba(76, 141, 255, .22), rgba(76, 141, 255, .05));
  box-shadow: inset 2px 0 0 var(--accent);
}
.nav-item.active .ic { color: var(--accent); }
.badge {
  margin-left: auto; font-style: normal; font-size: 11px; font-weight: 700; min-width: 20px; height: 20px; padding: 0 6px;
  display: inline-grid; place-items: center; border-radius: 999px; background: var(--crit); color: #fff;
}
.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 6px; border-top: 1px solid var(--border); padding-top: 14px; }
.who { display: flex; align-items: center; gap: 10px; padding: 4px 10px 8px; }
.who span:last-child { display: flex; flex-direction: column; line-height: 1.2; }
.who small { color: var(--muted); font-size: 11.5px; }
.avatar {
  width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--violet));
}
.ver { text-align: center; color: var(--muted); font-size: 11px; padding-top: 4px; }

.main { margin-left: 248px; min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 14px; padding: 16px 32px;
  background: linear-gradient(180deg, var(--bg) 40%, transparent); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.titles h1 { font-size: 24px; font-weight: 700; letter-spacing: -.4px; }
.titles p { color: var(--muted); font-size: 13px; margin-top: 1px; }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center; cursor: pointer; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--border); transition: .15s;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-2); }
.menu-btn { display: none; }
.live {
  display: inline-flex; align-items: center; gap: 8px; height: 38px; padding: 0 14px; border-radius: 12px; font-size: 12.5px;
  font-weight: 600; color: var(--ok); background: rgba(47, 212, 124, .1); border: 1px solid rgba(47, 212, 124, .25);
}
.live i { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(47, 212, 124, .6); animation: ping 2s infinite; }
.live.stale { color: var(--warn); background: rgba(246, 176, 66, .1); border-color: rgba(246, 176, 66, .3); }
.live.stale i { background: var(--warn); animation: none; }
@keyframes ping { 70% { box-shadow: 0 0 0 9px rgba(47, 212, 124, 0); } 100% { box-shadow: 0 0 0 0 rgba(47, 212, 124, 0); } }
.content { padding: 8px 32px 48px; max-width: 1560px; width: 100%; }
.stack-lg { display: flex; flex-direction: column; gap: 22px; }
.stack { display: flex; flex-direction: column; gap: 16px; }

/* ---------- cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 22px 14px; }
.card-head h2 { font-size: 15.5px; font-weight: 650; letter-spacing: -.1px; display: flex; align-items: center; gap: 10px; }
.count { background: var(--surface-2); color: var(--text-2); font-size: 12px; padding: 2px 9px; border-radius: 999px; }
.cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 22px; }
.chart-card { margin-top: 22px; }

/* ---------- KPIs ---------- */
.kpis { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 16px; margin-bottom: 22px; }
.kpi {
  position: relative; overflow: hidden; padding: 18px 20px; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--surface); box-shadow: var(--shadow); min-height: 104px;
}
.kpi::after {
  content: ''; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px; border-radius: 50%;
  background: radial-gradient(circle, var(--kc, var(--accent)) 0%, transparent 70%); opacity: .22;
}
.k-label { color: var(--muted); font-size: 12.5px; font-weight: 500; letter-spacing: .3px; text-transform: uppercase; }
.k-value { font-size: 36px; font-weight: 700; letter-spacing: -1px; line-height: 1.15; margin-top: 6px; color: var(--kc, var(--text)); }
.k-sub { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.kpi.ok { --kc: var(--ok); } .kpi.warn { --kc: var(--warn); } .kpi.crit { --kc: var(--crit); } .kpi.info { --kc: var(--accent); }

/* ---------- toolbar ---------- */
.toolbar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.search {
  position: relative; flex: 1 1 280px; max-width: 420px;
}
.search .ic { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--muted); width: 17px; height: 17px; }
.search input { padding-left: 40px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip {
  font: inherit; font-weight: 500; font-size: 13px; padding: 8px 14px; border-radius: 999px; cursor: pointer; color: var(--text-2);
  background: var(--surface); border: 1px solid var(--border); transition: .15s;
}
.chip:hover { border-color: var(--border-2); color: var(--text); }
.chip.active { color: #fff; background: linear-gradient(135deg, var(--accent), #3a6fe0); border-color: transparent; box-shadow: 0 6px 18px -6px rgba(76, 141, 255, .6); }
.toolbar .select { margin-left: auto; }

/* ---------- device cards ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(360px, 1fr)); gap: 18px; }
.dev-card {
  --sc: var(--ok);
  position: relative; display: flex; flex-direction: column; gap: 14px; padding: 18px 20px 16px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); color: var(--text);
  transition: transform .18s, border-color .18s, box-shadow .18s; overflow: hidden;
}
a.dev-card:hover { text-decoration: none; transform: translateY(-3px); border-color: color-mix(in srgb, var(--sc) 55%, transparent); box-shadow: 0 16px 44px -16px color-mix(in srgb, var(--sc) 55%, transparent); }
.dev-card::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--sc); opacity: .9; }
.dev-card.s-warning { --sc: var(--warn); } .dev-card.s-critical { --sc: var(--crit); } .dev-card.s-offline { --sc: var(--muted); }
.dev-card.s-maintenance { --sc: var(--info); } .dev-card.s-pending { --sc: var(--muted); }
.dev-card.s-offline .dc-metrics, .dev-card.s-offline .dc-disks, .dev-card.s-pending .dc-metrics { opacity: .45; }
.dc-top { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; }
.dc-name { font-size: 16.5px; font-weight: 650; letter-spacing: -.2px; display: flex; align-items: center; gap: 9px; min-width: 0; }
.dc-name span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--sc, var(--ok)); flex: none; box-shadow: 0 0 10px var(--sc, var(--ok)); }
.dc-sub { color: var(--muted); font-size: 12.5px; margin-top: 3px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.pill {
  display: inline-flex; align-items: center; gap: 6px; font-size: 11.5px; font-weight: 600; padding: 4px 11px; border-radius: 999px; white-space: nowrap;
  color: var(--pc, var(--ok)); background: color-mix(in srgb, var(--pc, var(--ok)) 14%, transparent); border: 1px solid color-mix(in srgb, var(--pc, var(--ok)) 30%, transparent);
}
.pill.healthy { --pc: var(--ok); } .pill.warning { --pc: var(--warn); } .pill.critical { --pc: var(--crit); }
.pill.offline, .pill.pending, .pill.muted-pill { --pc: var(--muted); } .pill.maintenance { --pc: var(--info); }
.dc-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.meter .m-top { display: flex; justify-content: space-between; align-items: baseline; font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.meter .m-top b { color: var(--text); font-size: 15px; font-weight: 650; font-variant-numeric: tabular-nums; }
.bar { height: 7px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.bar > i { display: block; height: 100%; border-radius: 99px; background: var(--bc, var(--ok)); width: 0; transition: width .6s cubic-bezier(.2, .8, .2, 1); }
.bar.warn > i { --bc: var(--warn); } .bar.crit > i { --bc: var(--crit); } .bar.ok > i { background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.dc-disks { display: flex; flex-direction: column; gap: 9px; }
.dc-disk { display: grid; grid-template-columns: 34px 1fr auto; gap: 10px; align-items: center; font-size: 12px; color: var(--muted); }
.dc-disk b { color: var(--text-2); font-weight: 600; }
.dc-disk span:last-child { font-variant-numeric: tabular-nums; }
.dc-foot { display: flex; align-items: center; gap: 12px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); padding-top: 12px; margin-top: auto; }
.dc-foot .sp { flex: 1; }
.dc-foot .al { color: var(--crit); font-weight: 600; }
.dc-foot .al.w { color: var(--warn); }
.spark { width: 84px; height: 26px; }
.spark path.l { fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linejoin: round; stroke-linecap: round; }
.spark path.a { opacity: .35; stroke: none; }
.tag { font-size: 11px; color: var(--text-2); background: var(--surface-2); padding: 2px 8px; border-radius: 6px; }
.skeleton { position: relative; overflow: hidden; min-height: 110px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.dev-card.skeleton { min-height: 220px; }
.skeleton::after { content: ''; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .06), transparent); animation: shimmer 1.4s infinite; }
@keyframes shimmer { 100% { transform: translateX(100%); } }

.empty { text-align: center; padding: 70px 20px; border: 1px dashed var(--border-2); border-radius: var(--radius); background: var(--surface); }
.empty h2 { margin: 16px 0 6px; font-size: 20px; }
.empty p { color: var(--muted); max-width: 440px; margin: 0 auto 20px; }

/* ---------- device page ---------- */
.back { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-weight: 500; margin-bottom: 14px; }
.back:hover { color: var(--text); text-decoration: none; }
.dv-head { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; padding: 22px 24px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); box-shadow: var(--shadow); min-height: 96px; }
.dv-icon { width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--accent), var(--violet)); }
.dv-icon svg { width: 28px; height: 28px; }
.dv-title h2 { font-size: 24px; letter-spacing: -.5px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.dv-title p { color: var(--muted); margin-top: 3px; }
.dv-chips { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.gauges { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 18px; }
.gauge { display: flex; align-items: center; gap: 18px; padding: 18px 20px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.ring { position: relative; width: 84px; height: 84px; flex: none; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke-width: 9; stroke-linecap: round; }
.ring .bg { stroke: var(--surface-2); }
.ring .fg { stroke: var(--rc, var(--accent)); transition: stroke-dashoffset .8s cubic-bezier(.2, .8, .2, 1); filter: drop-shadow(0 0 6px color-mix(in srgb, var(--rc, var(--accent)) 60%, transparent)); }
.ring b { position: absolute; inset: 0; display: grid; place-items: center; font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }
.ring.warn { --rc: var(--warn); } .ring.crit { --rc: var(--crit); } .ring.ok { --rc: var(--accent); } .ring.violet { --rc: var(--violet); } .ring.cyan { --rc: var(--accent-2); }
.g-label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; font-weight: 500; }
.g-val { font-size: 19px; font-weight: 650; margin-top: 2px; letter-spacing: -.3px; }
.g-sub { color: var(--muted); font-size: 12.5px; margin-top: 1px; }
.seg { display: inline-flex; padding: 3px; border-radius: 11px; background: var(--surface-2); border: 1px solid var(--border); }
.seg button { font: inherit; font-size: 12.5px; font-weight: 600; padding: 5px 12px; border-radius: 8px; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.seg button.on { background: var(--surface-solid); color: var(--text); box-shadow: 0 1px 6px rgba(0, 0, 0, .3); }
.charts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; padding: 0 22px 22px; }
.chart-title { display: flex; align-items: center; gap: 7px; font-size: 12.5px; color: var(--text-2); font-weight: 500; margin-bottom: 8px; }
.chart-title i { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }
.chart-title small { color: var(--muted); }
.chart { position: relative; height: 230px; }
.chart canvas { width: 100%; height: 100%; display: block; }
.tip {
  position: absolute; z-index: 5; pointer-events: none; min-width: 130px; padding: 9px 12px; border-radius: 11px; font-size: 12px;
  background: var(--surface-solid); border: 1px solid var(--border-2); box-shadow: var(--shadow); transform: translate(-50%, -100%);
}
.tip b { display: block; color: var(--muted); font-weight: 500; margin-bottom: 4px; }
.tip div { display: flex; align-items: center; gap: 7px; justify-content: space-between; }
.tip i { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 6px; }

.disk-row { padding: 12px 22px; border-top: 1px solid var(--border); }
.disk-row:first-child { border-top: 0; }
.disk-row .top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 8px; gap: 10px; }
.disk-row .top b { font-weight: 650; }
.disk-row .top span { color: var(--muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.disk-row .bar { height: 9px; }
.kv { display: grid; grid-template-columns: 150px 1fr; }
.kv > div { padding: 10px 22px; border-top: 1px solid var(--border); }
.kv > div:nth-child(-n+2) { border-top: 0; }
.kv .k { color: var(--muted); }
.kv .v { color: var(--text); word-break: break-word; }
.hrow { display: flex; align-items: center; gap: 12px; padding: 11px 22px; border-top: 1px solid var(--border); }
.hrow:first-child { border-top: 0; }
.hrow .hi { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; font-size: 13px; font-weight: 700; flex: none; color: var(--hc, var(--ok)); background: color-mix(in srgb, var(--hc, var(--ok)) 16%, transparent); }
.hrow.w { --hc: var(--warn); } .hrow.c { --hc: var(--crit); } .hrow.n { --hc: var(--muted); }
.hrow .ht { flex: 1; min-width: 0; }
.hrow .ht small { display: block; color: var(--muted); font-size: 12px; }
.hrow .hv { color: var(--text-2); font-weight: 600; font-size: 13px; white-space: nowrap; }
.empty-note { padding: 16px 22px 22px; color: var(--muted); }
.alert-item { padding: 13px 22px; border-top: 1px solid var(--border); display: flex; gap: 12px; }
.alert-item:first-child { border-top: 0; }
.alert-item .pill { align-self: flex-start; }
.alert-item .ai-body { flex: 1; min-width: 0; }
.alert-item .ai-body small { display: block; color: var(--muted); margin-top: 2px; }
.subhead { padding: 10px 22px 6px; color: var(--muted); font-size: 11.5px; letter-spacing: .6px; text-transform: uppercase; font-weight: 600; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 11.5px; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); font-weight: 600; padding: 10px 22px; border-bottom: 1px solid var(--border); }
.table td { padding: 13px 22px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--surface-2); }
.table.compact td, .table.compact th { padding: 9px 22px; }
.table td.num, .table th.num { text-align: right; font-variant-numeric: tabular-nums; }
.all-clear { display: flex; align-items: center; gap: 16px; padding: 26px 24px 30px; }
.tick { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font-size: 20px; color: var(--ok); background: rgba(47, 212, 124, .14); border: 1px solid rgba(47, 212, 124, .3); }

/* ---------- forms & buttons ---------- */
input, select, textarea {
  font: inherit; color: var(--text); width: 100%; padding: 10px 13px; border-radius: var(--radius-sm); background: var(--surface-2);
  border: 1px solid var(--border); outline: none; transition: border-color .15s, box-shadow .15s;
}
select option { background: var(--surface-solid); color: var(--text); }
input:focus, select:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(76, 141, 255, .22); }
textarea { resize: vertical; min-height: 60px; }
label { display: flex; flex-direction: column; gap: 6px; color: var(--text-2); font-size: 13px; font-weight: 500; }
label small { color: var(--muted); font-weight: 400; }
.select { width: auto; padding: 9px 36px 9px 13px; }
.input-sm { width: 150px; } .input-xs { width: 66px; display: inline-block; padding: 5px 8px; margin: 0 4px; text-align: center; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 18px; }
.form-grid.inner { padding: 0; gap: 16px 18px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-grid h3 { grid-column: 1 / -1; font-size: 13px; letter-spacing: .5px; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-top: 8px; padding-top: 14px; border-top: 1px solid var(--border); }
.form-grid h3:first-child { border-top: 0; margin-top: 0; padding-top: 0; }
.form-grid h3 small { text-transform: none; letter-spacing: 0; font-weight: 400; margin-left: 8px; }
.span2 { grid-column: 1 / -1; }
.stack > h3 { font-size: 13px; }
label.check { flex-direction: row; align-items: center; gap: 11px; color: var(--text); font-weight: 400; cursor: pointer; }
label.check input { width: 18px; height: 18px; accent-color: var(--accent); flex: none; }
label.check span { color: var(--text-2); line-height: 1.5; }
label.check span b { color: var(--text); font-weight: 600; }
.actions { display: flex; gap: 10px; }
.btn {
  font: inherit; font-weight: 600; font-size: 13.5px; padding: 10px 18px; border-radius: 12px; cursor: pointer; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border-2); transition: .15s; display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary { color: #fff; border-color: transparent; background: linear-gradient(135deg, var(--accent), #3566d8); box-shadow: 0 8px 22px -8px rgba(76, 141, 255, .7); }
.btn.primary:hover { filter: brightness(1.08); }
.btn.danger { color: #fff; border-color: transparent; background: linear-gradient(135deg, #ff5470, #d93353); }
.btn.sm { padding: 6px 13px; font-size: 12.5px; border-radius: 10px; }
.btn.block { width: 100%; padding: 12px 18px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.inline-form { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.inline-form > div { flex: 1 1 260px; }
.inline-form p { font-size: 12.5px; }
.divider { height: 1px; background: var(--border); margin: 22px 0; }
.row-gap { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.notice { padding: 12px 16px; border-radius: 12px; margin-bottom: 16px; border: 1px solid var(--border); background: var(--surface-2); }
.notice.ok { color: var(--ok); background: rgba(47, 212, 124, .1); border-color: rgba(47, 212, 124, .28); }
.notice.bad { color: var(--crit); background: rgba(255, 84, 112, .1); border-color: rgba(255, 84, 112, .3); }
.stack-lg > .notice { margin-bottom: 0; }

/* settings */
.subnav { position: sticky; top: 74px; z-index: 10; display: flex; gap: 6px; flex-wrap: wrap; padding: 6px; border-radius: 14px; background: var(--surface-solid); border: 1px solid var(--border); width: fit-content; }
.subnav a { padding: 7px 15px; border-radius: 10px; color: var(--text-2); font-weight: 500; font-size: 13px; }
.subnav a:hover { background: var(--surface-2); color: var(--text); text-decoration: none; }
.settings .card { scroll-margin-top: 130px; }
.rule-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.rule { padding: 16px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--border); display: flex; flex-direction: column; gap: 12px; }
.rule h3 { font-size: 14px; }
.unit { display: flex; align-items: center; gap: 8px; color: var(--muted); font-weight: 400; white-space: nowrap; }
.unit input { width: 86px; }
.inline-field { flex-direction: row; align-items: center; gap: 10px; flex-wrap: wrap; }
.toggles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px; }
.enroll { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.enroll h3 { font-size: 12px; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.copy-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.copy-row code { padding: 9px 13px; font-size: 13.5px; word-break: break-all; }
.copy-row.key code { font-size: 16px; letter-spacing: 1px; color: var(--accent-2); border: 1px dashed var(--accent-2); background: rgba(34, 211, 238, .07); }
.smtp-fields[hidden] { display: none; }
.settings-card summary { list-style: none; cursor: pointer; display: flex; align-items: baseline; gap: 14px; padding: 18px 22px; }
.settings-card summary::-webkit-details-marker { display: none; }
.settings-card summary::after { content: '▾'; margin-left: auto; color: var(--muted); transition: transform .2s; }
.settings-card[open] summary::after { transform: rotate(180deg); }
.settings-card summary h2 { font-size: 15.5px; }
.settings-body { padding: 4px 22px 24px; }
.settings-card { margin-top: 22px; }
.danger-zone b { color: var(--crit); }

/* ---------- auth ---------- */
body.auth { display: grid; place-items: center; padding: 28px 16px; }
.auth-wrap { width: 100%; max-width: 420px; }
.auth-wrap.wide { max-width: 640px; }
.auth-card { padding: 34px 32px; border-radius: 24px; }
.glass { background: var(--surface); border: 1px solid var(--border-2); box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .7); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); }
.auth-card h1 { text-align: center; font-size: 26px; letter-spacing: -.5px; margin: 14px 0 4px; }
.auth-card .muted { margin-bottom: 22px; }
.auth-logo { display: grid; place-items: center; }
.auth-logo svg { filter: drop-shadow(0 12px 28px rgba(76, 141, 255, .5)); }
.auth-card form.stack { gap: 16px; }
.auth-foot { text-align: center; color: var(--muted); font-size: 12px; margin-top: 18px; }
.auth-wave { position: fixed; left: 0; right: 0; bottom: 8%; width: 100%; height: 160px; z-index: -1; opacity: .8; pointer-events: none; }
.auth-wave path { stroke-dasharray: 2400; stroke-dashoffset: 2400; animation: draw 4s ease-out forwards, pulseOpacity 5s 4s infinite; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pulseOpacity { 50% { opacity: .35; } }
.checks { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.checks li { display: flex; align-items: center; gap: 9px; padding: 8px 12px; border-radius: 10px; background: var(--surface-2); font-size: 12.5px; }
.checks li i { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.checks li.bad i { background: var(--crit); }
.checks li em { margin-left: auto; font-style: normal; color: var(--muted); }

/* ---------- toasts ---------- */
.toasts { position: fixed; right: 20px; bottom: 20px; z-index: 100; display: flex; flex-direction: column; gap: 10px; }
.toast { padding: 12px 16px; border-radius: 12px; background: var(--surface-solid); border: 1px solid var(--border-2); box-shadow: var(--shadow); animation: slideIn .25s ease; }
@keyframes slideIn { from { transform: translateY(10px); opacity: 0; } }

/* ---------- responsive ---------- */
@media (max-width: 1280px) {
  .kpis { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gauges { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rule-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 960px) {
  .sidebar { transform: translateX(-100%); transition: transform .25s; width: 270px; }
  body.nav-open .sidebar { transform: none; box-shadow: 0 0 80px rgba(0, 0, 0, .6); }
  .main { margin-left: 0; }
  .menu-btn { display: grid; }
  .topbar { padding: 14px 18px; }
  .content { padding: 6px 18px 40px; }
  .cols, .charts, .enroll, .toggles { grid-template-columns: 1fr; }
  .titles h1 { font-size: 20px; }
  .titles p { display: none; }
  .live span { display: none; }
  .live { padding: 0 12px; }
}
@media (max-width: 640px) {
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid { grid-template-columns: 1fr; }
  .gauges, .rule-grid, .form-grid, .form-grid.inner, .checks { grid-template-columns: 1fr; }
  .toolbar .select { margin-left: 0; }
  .kv { grid-template-columns: 110px 1fr; }
  .dv-chips { margin-left: 0; }
  .auth-card { padding: 26px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
.tag.owner { color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); }
.dv-title h2 .btn.sm { margin-left: 8px; font-size: 11px; padding: 3px 9px; vertical-align: middle; }
.dc-foot { gap: 10px; }
.dc-foot > span { white-space: nowrap; }
.tag.upd { color: var(--warn); background: color-mix(in srgb, var(--warn) 16%, transparent); font-weight: 600; }
.dc-name span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }