:root {
  --bg: hsl(210 20% 96%);
  --fg: hsl(215 28% 17%);
  --card: hsl(0 0% 100%);
  --card-border: hsl(214 14% 89%);
  --muted-fg: hsl(215 10% 42%);
  --primary: hsl(174 84% 30%);
  --primary-hover: hsl(174 84% 25%);
  --primary-fg: #ffffff;
  --sidebar: hsl(215 28% 17%);
  --sidebar-2: hsl(215 28% 14%);
  --sidebar-fg: hsl(210 20% 96%);
  --sidebar-muted: hsl(210 14% 65%);
  --sidebar-active: hsl(174 84% 32%);
  --danger: hsl(0 72% 46%);
  --danger-bg: hsl(0 80% 96%);
  --ok: hsl(152 60% 32%);
  --ok-bg: hsl(152 55% 94%);
  --warn: hsl(38 92% 40%);
  --warn-bg: hsl(45 90% 94%);
  --ring: hsl(174 84% 32%);
  --radius: 12px;
  --radius-sm: 8px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg); color: var(--fg); font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); }

/* ---------- layout ---------- */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 248px; flex-shrink: 0; background: var(--sidebar); color: var(--sidebar-fg);
  display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand {
  padding: 22px 20px 16px; font-weight: 800; font-size: 19px; letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--sidebar-2);
}
.sidebar .brand .dot { width: 12px; height: 12px; border-radius: 50%; background: var(--sidebar-active); box-shadow: 0 0 0 4px hsl(174 84% 32% / .2); }
.sidebar nav { padding: 12px 12px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; flex: 1; }
.sidebar .navlabel { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--sidebar-muted); padding: 14px 12px 6px; font-weight: 700; }
.sidebar nav a {
  display: flex; align-items: center; gap: 11px; min-height: 46px; padding: 8px 14px;
  border-radius: var(--radius-sm); color: var(--sidebar-fg); text-decoration: none; font-weight: 500; font-size: 15px;
}
.sidebar nav a .ic { width: 20px; text-align: center; opacity: .9; font-size: 17px; }
.sidebar nav a:hover { background: var(--sidebar-2); }
.sidebar nav a.active { background: var(--sidebar-active); color: #fff; font-weight: 600; }
.sidebar .userbox { padding: 14px 16px; border-top: 1px solid var(--sidebar-2); font-size: 14px; color: var(--sidebar-muted); }
.sidebar .userbox .uname { color: var(--sidebar-fg); font-weight: 600; display: block; }

.content { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  background: var(--card); border-bottom: 1px solid var(--card-border);
  padding: 16px 28px; display: flex; align-items: center; gap: 14px; position: sticky; top: 0; z-index: 5;
}
.topbar h1 { font-size: 20px; margin: 0; font-weight: 700; letter-spacing: -0.01em; }
.topbar form { margin-left: auto; }
main { padding: 26px 28px 60px; max-width: 1120px; width: 100%; }

/* ---------- mobile / tablet ---------- */
.menu-toggle { display: none; }
@media (max-width: 860px) {
  .sidebar { position: fixed; left: -260px; z-index: 40; transition: left .2s; box-shadow: 0 0 40px rgba(0,0,0,.3); }
  #nav-toggle:checked ~ .layout .sidebar { left: 0; }
  .menu-toggle { display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px; border-radius: var(--radius-sm); background: var(--card); border: 1px solid var(--card-border); font-size: 22px; cursor: pointer; }
  main { padding: 18px 16px 60px; }
  .topbar { padding: 12px 16px; }
}

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 22px; margin-bottom: 20px; box-shadow: 0 1px 2px rgba(16,24,40,.04);
}
.card h2 { font-size: 17px; margin: 0 0 16px; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 24px; margin: 4px 0 18px; font-weight: 800; letter-spacing: -0.02em; }
.muted { color: var(--muted-fg); font-size: 14px; }
.section-intro { color: var(--muted-fg); margin: -8px 0 20px; max-width: 70ch; }

/* ---------- forms ---------- */
label { display: block; font-weight: 600; margin: 14px 0 5px; font-size: 14px; }
input, select, textarea {
  width: 100%; font-size: 16px; padding: 11px 13px; min-height: 46px;
  border: 1.5px solid var(--card-border); border-radius: var(--radius-sm); background: #fff; color: var(--fg);
  font-family: inherit;
}
input:focus, select:focus, textarea:focus, button:focus, a:focus-visible {
  outline: 3px solid hsl(174 84% 32% / .35); outline-offset: 1px; border-color: var(--primary);
}
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; min-width: 46px; padding: 10px 20px; font-size: 15px; font-weight: 600;
  border-radius: var(--radius-sm); border: 1.5px solid var(--primary); background: var(--primary);
  color: var(--primary-fg); cursor: pointer; text-decoration: none; margin-top: 14px; transition: background .12s;
}
button:hover, .btn:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
button.secondary, .btn.secondary { background: #fff; color: var(--primary); }
button.secondary:hover, .btn.secondary:hover { background: hsl(174 60% 96%); }
button.ghost { background: transparent; color: var(--fg); border-color: var(--card-border); }
button.ghost:hover { background: var(--bg); }
button.small { min-height: 38px; padding: 6px 14px; font-size: 14px; margin-top: 0; }
button.danger { background: var(--danger); border-color: var(--danger); }
.form-row { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); align-items: end; }
form.inline { display: inline; margin: 0; }
fieldset { border: 1.5px solid var(--card-border); border-radius: var(--radius-sm); padding: 10px 14px; margin: 12px 0 0; }
fieldset legend { font-weight: 600; font-size: 14px; padding: 0 6px; }
.check { display: flex; align-items: center; gap: 10px; min-height: 44px; }
.check input { width: 22px; height: 22px; min-height: 22px; }
.check label { margin: 0; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); }
table { width: 100%; border-collapse: collapse; font-size: 15px; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid var(--card-border); vertical-align: top; }
th { background: var(--bg); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted-fg); font-weight: 700; }
tr:last-child td { border-bottom: none; }

/* ---------- badges ---------- */
.badge { display: inline-block; padding: 3px 11px; border-radius: 999px; font-weight: 600; font-size: 13px; white-space: nowrap; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--danger-bg); color: var(--danger); }
.badge.open { background: var(--warn-bg); color: var(--warn); }
.badge.neutral { background: var(--bg); color: var(--muted-fg); }
.badge.teal { background: hsl(174 60% 94%); color: var(--primary); }

/* ---------- stats ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.stat { text-align: left; }
.stat .num { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.1; }
.stat .lbl { color: var(--muted-fg); font-size: 14px; margin-top: 4px; }
.stat.bad .num { color: var(--danger); }
.stat.ok .num { color: var(--ok); }

/* ---------- flash ---------- */
.flash { background: var(--warn-bg); border: 1.5px solid var(--warn); color: hsl(30 80% 28%); padding: 13px 16px; border-radius: var(--radius-sm); font-weight: 600; margin-bottom: 18px; }

.quick-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.trace-arrow { color: var(--primary); font-weight: 800; margin: 0 6px; }