:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f1f3f5;
  --border: #e1e4e8;
  --text: #1f2328;
  --text-2: #424a53;
  --muted: #656d76;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --good: #1a7f37;
  --good-bg: #dafbe1;
  --warning: #9a6700;
  --warning-bg: #fff8c5;
  --critical: #cf222e;
  --critical-bg: #ffebe9;
  --chart-accent: #2f6fd6;
  --chart-critical: #d1453b;
  --chart-grid: #eceef1;
  --sidebar-w: 236px;
  --radius: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1117;
    --surface: #151b23;
    --surface-2: #1c232d;
    --border: #2a323d;
    --text: #e6edf3;
    --text-2: #c4ccd5;
    --muted: #8b949e;
    --accent: #4493f8;
    --accent-text: #0d1117;
    --good: #3fb950;
    --good-bg: #12301b;
    --warning: #d29922;
    --warning-bg: #332a0d;
    --critical: #f85149;
    --critical-bg: #3b1416;
    --chart-accent: #5b9bf0;
    --chart-critical: #ef6b62;
    --chart-grid: #222a34;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1117; --surface: #151b23; --surface-2: #1c232d; --border: #2a323d; --text: #e6edf3; --text-2: #c4ccd5;
  --muted: #8b949e; --accent: #4493f8; --accent-text: #0d1117; --good: #3fb950; --good-bg: #12301b; --warning: #d29922;
  --warning-bg: #332a0d; --critical: #f85149; --critical-bg: #3b1416; --chart-accent: #5b9bf0; --chart-critical: #ef6b62;
  --chart-grid: #222a34; color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, .mono, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }
code { background: var(--surface-2); padding: 1px 5px; border-radius: 4px; }
h1, h2 { margin: 0; font-weight: 600; }
h1 { font-size: 18px; }
h2 { font-size: 15px; }

/* ---------- Layout */
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w);
  background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; padding: 18px 18px 12px; }
.brand-mark {
  width: 28px; height: 28px; border-radius: 7px; background: var(--accent); color: var(--accent-text);
  display: grid; place-items: center; font-size: 15px;
}
nav { flex: 1; overflow-y: auto; padding: 4px 10px; }
.nav-group { margin-bottom: 14px; }
.nav-group-label { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 6px 8px; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 7px 8px; border-radius: 6px;
  color: var(--text-2); font-weight: 500;
}
.nav-item:hover { background: var(--surface-2); text-decoration: none; }
.nav-item.active { background: var(--surface-2); color: var(--text); box-shadow: inset 3px 0 0 var(--accent); }
.nav-item.disabled { color: var(--muted); cursor: default; opacity: .75; }
.nav-item .pill { margin-left: auto; }
.nav-icon { flex: none; }
.sidebar-foot { border-top: 1px solid var(--border); padding: 12px 18px; display: grid; gap: 6px; }

.main { margin-left: var(--sidebar-w); min-height: 100vh; }
.topbar {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; gap: 12px;
  padding: 14px 28px; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(6px); border-bottom: 1px solid var(--border);
}
.content { padding: 24px 28px 48px; max-width: 1280px; display: grid; gap: 20px; }
.topbar .menu-btn { display: none; }
.nav-toggle { position: absolute; opacity: 0; pointer-events: none; }
.nav-backdrop { display: none; }

@media (max-width: 860px) {
  .sidebar { transform: translateX(-100%); transition: transform .2s ease; }
  .nav-toggle:checked ~ .sidebar { transform: none; box-shadow: 0 0 40px rgba(0,0,0,.25); }
  .nav-toggle:checked ~ .nav-backdrop { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 15; }
  .main { margin-left: 0; }
  .topbar .menu-btn { display: inline-flex; }
  .topbar { padding: 12px 16px; }
  .content { padding: 16px 16px 40px; }
}

/* ---------- Components */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 20px; }

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 170px), 1fr)); gap: 12px; }
.tile { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; color: inherit; display: block; }
a.tile:hover { border-color: var(--accent); text-decoration: none; }
.tile-label { font-size: 12px; color: var(--muted); }
.tile-value { font-size: 26px; font-weight: 600; letter-spacing: -.01em; margin-top: 2px; font-variant-numeric: tabular-nums; }
.tile-sub { font-size: 12px; color: var(--muted); }

.tone-good { color: var(--good); }
.tone-warning { color: var(--warning); }
.tone-critical { color: var(--critical); }

.table-wrap { overflow-x: auto; margin: 0 -4px; }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: 12px; font-weight: 500; color: var(--muted); padding: 6px 8px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.table td { padding: 9px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.row-muted td { opacity: .6; }
.actions-cell { text-align: right; white-space: nowrap; }
.actions-cell > div { display: inline-flex; gap: 4px; }

.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 1px 8px; border-radius: 999px;
  font-size: 12px; font-weight: 500; white-space: nowrap; border: 1px solid transparent;
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.badge-good { color: var(--good); background: var(--good-bg); }
.badge-warning { color: var(--warning); background: var(--warning-bg); }
.badge-critical { color: var(--critical); background: var(--critical-bg); }
.badge-muted { color: var(--muted); background: var(--surface-2); }
.pill { font-size: 11px; padding: 0 7px; border-radius: 999px; font-weight: 600; line-height: 18px; }
.pill-critical { background: var(--critical); color: #fff; }
.pill-muted { background: var(--surface-2); color: var(--muted); font-weight: 500; }

.btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--surface-2); color: var(--text);
  font: inherit; font-weight: 500; cursor: pointer;
}
.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn-primary:hover { filter: brightness(1.08); border-color: var(--accent); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 4px 10px; font-size: 13px; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.flash { padding: 10px 14px; border-radius: 6px; border: 1px solid; }
.flash-good { color: var(--good); background: var(--good-bg); border-color: color-mix(in srgb, var(--good) 30%, transparent); }
.flash-critical { color: var(--critical); background: var(--critical-bg); border-color: color-mix(in srgb, var(--critical) 30%, transparent); }
.flash-info { background: var(--surface-2); border-color: var(--border); }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); }
.tabs a { padding: 8px 14px; color: var(--muted); font-weight: 500; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.active { color: var(--text); border-bottom-color: var(--accent); }
.tabs a:hover { text-decoration: none; color: var(--text); }

.filters { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
input, select {
  font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 7px 10px; width: 100%;
}
.filters select { width: auto; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); gap: 14px; align-items: end; }
.form-grid label, .stack label { display: grid; gap: 4px; font-weight: 500; font-size: 13px; }
.form-grid label.check { display: flex; align-items: center; gap: 8px; font-weight: 400; }
.form-grid label.check input { width: auto; }
.hint { font-weight: 400; color: var(--muted); font-size: 12px; }
.stack { display: grid; gap: 14px; }
.actions { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }

.kv { display: grid; grid-template-columns: max-content 1fr; gap: 6px 20px; margin: 0 0 12px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }
.pre { background: var(--surface-2); border-radius: 6px; padding: 10px 12px; white-space: pre-wrap; word-break: break-word; margin: 8px 0 0; max-height: 360px; overflow: auto; }

.empty { color: var(--muted); padding: 18px 4px; text-align: center; }
.event-list { display: grid; gap: 10px; }
.event { border: 1px solid var(--border); border-radius: 6px; padding: 10px 12px; }
.event-head { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 4px; }
.event-msg { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12.5px; }

.muted { color: var(--muted); }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }
.break { word-break: break-word; overflow-wrap: anywhere; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
details summary { cursor: pointer; color: var(--muted); margin-top: 8px; }

/* ---------- Charts */
.chart { margin: 0 0 16px; overflow-x: auto; }
.chart-title { font-size: 13px; font-weight: 500; color: var(--text-2); margin-bottom: 6px; }
.chart-svg { width: 100%; min-width: 680px; height: auto; display: block; }
.chart-grid { stroke: var(--chart-grid); stroke-width: 1; }
.chart-baseline { stroke: var(--border); stroke-width: 1; }
.chart-axis { fill: var(--muted); font-size: 15px; }
.chart-bar-accent { fill: var(--chart-accent); }
.chart-bar-critical { fill: var(--chart-critical); }
.chart-hitbox { fill: transparent; }
.chart-hit:hover .chart-hitbox { fill: var(--surface-2); }

/* ---------- Auth */
.auth-body { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.auth-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 8px 24px 24px; display: grid; gap: 14px; }
.auth-card .brand { padding: 16px 0 4px; }
.auth-card p { margin: 0; }