:root {
  --bg: #f0f9ff;
  --panel: rgba(255, 255, 255, .82);
  --panel-strong: #ffffff;
  --line: #cfe7f5;
  --text: #0c4a6e;
  --muted: #52768a;
  --primary: #0369a1;
  --secondary: #0ea5e9;
  --ok: #22c55e;
  --warn: #d97706;
  --fail: #dc2626;
  --shadow: 0 18px 55px rgba(3, 105, 161, .12);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 10%, rgba(14,165,233,.20), transparent 32rem),
    linear-gradient(135deg, #f8fcff 0%, var(--bg) 42%, #e7f7ee 100%);
  font: 14px/1.45 "Fira Sans", ui-sans-serif, system-ui, sans-serif;
}
button, input, textarea { font: inherit; }
button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  padding: 0 12px;
  transition: .18s ease;
}
button:hover { border-color: var(--secondary); transform: translateY(-1px); }
button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
button.good { background: var(--ok); border-color: var(--ok); color: #063b1a; }
button.danger { color: var(--fail); }
input, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,.9);
  color: var(--text);
  padding: 10px 12px;
}
textarea { min-height: 92px; resize: vertical; }
.login {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}
.login form, .shell {
  width: min(100%, 1440px);
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.login form {
  max-width: 430px;
  border-radius: 12px;
  padding: 28px;
}
.brand { font: 700 28px/1.1 "Fira Code", ui-monospace, monospace; margin: 0 0 8px; }
.muted { color: var(--muted); }
.stack { display: grid; gap: 12px; }
.shell {
  min-height: calc(100vh - 24px);
  margin: 12px auto;
  border-radius: 14px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
}
.nav {
  border-right: 1px solid var(--line);
  padding: 18px;
  background: rgba(255,255,255,.45);
}
.nav h1 { font: 700 22px/1.1 "Fira Code", ui-monospace, monospace; margin: 0 0 18px; }
.nav button {
  width: 100%;
  justify-content: flex-start;
  margin-bottom: 8px;
  text-align: left;
}
.nav button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.main { padding: 18px; overflow: auto; }
.top { display: flex; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 16px; }
.top h2 { margin: 0; font-size: 24px; }
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 12px; }
.card {
  grid-column: span 12;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  padding: 14px;
}
.third { grid-column: span 4; }
.half { grid-column: span 6; }
.card h3 { margin: 0 0 10px; font-size: 15px; }
.status-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  padding: 0 10px;
  background: #eef7fc;
  border: 1px solid var(--line);
  font-family: "Fira Code", ui-monospace, monospace;
}
.PASS { color: #0f7a36; border-color: #9be6b5; background: #effdf4; }
.WARN { color: var(--warn); border-color: #fed7aa; background: #fff7ed; }
.FAIL { color: var(--fail); border-color: #fecaca; background: #fff1f2; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.table th { color: var(--muted); font-size: 12px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.traffic {
  display: grid;
  grid-template-columns: repeat(2, minmax(82px, 1fr));
  gap: 6px;
  min-width: 210px;
}
.traffic span {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #f8fcff;
  padding: 5px 7px;
}
.traffic b {
  color: var(--primary);
  font: 700 12px/1.1 "Fira Code", ui-monospace, monospace;
}
.traffic em {
  color: var(--muted);
  font-size: 10px;
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: .04em;
}
pre {
  margin: 0;
  max-height: 440px;
  overflow: auto;
  border-radius: 8px;
  padding: 12px;
  background: #082f49;
  color: #e0f2fe;
  font: 12px/1.45 "Fira Code", ui-monospace, monospace;
  white-space: pre-wrap;
}
.toast { margin: 0 0 12px; padding: 10px 12px; border-radius: 8px; background: #e0f2fe; border: 1px solid var(--line); }
@media (max-width: 900px) {
  .shell { grid-template-columns: 1fr; margin: 0; min-height: 100vh; border-radius: 0; }
  .nav { border-right: 0; border-bottom: 1px solid var(--line); }
  .nav div { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .nav button { margin: 0; }
  .third, .half { grid-column: span 12; }
  .top { align-items: flex-start; flex-direction: column; }
}