:root {
  --bg: #eef2f0;
  --bg-accent: #d9e6df;
  --surface: #ffffff;
  --ink: #14201c;
  --muted: #5d6f68;
  --line: #cfdad4;
  --green: #1a7f4b;
  --green-bg: #e3f6eb;
  --yellow: #9a6b00;
  --yellow-bg: #fff3d1;
  --red: #b42318;
  --red-bg: #fde8e6;
  --teal: #0f6b5c;
  --teal-dark: #0a4a40;
  --shadow: 0 10px 30px rgba(20, 32, 28, 0.06);
  --radius: 16px;
  --font: "DM Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(1200px 500px at 10% -10%, #c8e4d8 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #d7e3f0 0%, transparent 50%),
    var(--bg);
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.tiny { font-size: 12px; }
.error { color: var(--red); min-height: 1.2em; }

.brand-mark {
  width: 52px; height: 52px; border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(145deg, var(--teal), var(--teal-dark));
  color: white; font-weight: 700; letter-spacing: 0.04em;
  box-shadow: 0 8px 20px rgba(15, 107, 92, 0.28);
}
.brand-mark.sm { width: 40px; height: 40px; border-radius: 12px; font-size: 13px; }

.login-wrap {
  min-height: 100vh; display: grid; place-items: center; padding: 24px;
}
.login-card {
  width: min(400px, 100%);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: var(--shadow);
  display: grid; gap: 12px;
}
.login-card h1 { margin: 4px 0 0; font-size: 28px; }
.login-card label { display: grid; gap: 6px; font-size: 14px; font-weight: 500; }
.login-card input {
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
  font: inherit; background: #f7faf8;
}
.login-card button, .top button, .btn {
  border: 0; border-radius: 12px; padding: 12px 16px;
  background: var(--teal); color: white; font: inherit; font-weight: 600;
  cursor: pointer;
}
.login-card button:hover, .btn:hover { background: var(--teal-dark); }
button.ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px;
  font: inherit; font-weight: 500; cursor: pointer;
}
button.ghost:hover { background: #f3f7f5; }
button.danger {
  background: var(--red-bg); color: var(--red);
  border: 1px solid #f2c4bf; border-radius: 999px; padding: 6px 12px;
  font: inherit; font-size: 12px; font-weight: 600; cursor: pointer;
}
button.danger:hover { background: #fadad7; }

#app-view { max-width: 1180px; margin: 0 auto; padding: 20px 18px 48px; display: grid; gap: 18px; }

.top {
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  background: rgba(255,255,255,0.72); backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: 18px; padding: 14px 16px;
}
.top-left, .top-right { display: flex; align-items: center; gap: 12px; }

.pill {
  font-size: 13px; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase;
  padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line);
}
.pill.green { background: var(--green-bg); color: var(--green); border-color: #b7e4c8; }
.pill.yellow { background: var(--yellow-bg); color: var(--yellow); border-color: #f0d48a; }
.pill.red { background: var(--red-bg); color: var(--red); border-color: #f2c4bf; }

.vitals {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
.vital {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.vital .label { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.vital .value { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; }
.vital .sub { margin-top: 4px; font-size: 12px; color: var(--muted); }
.bar {
  margin-top: 10px; height: 8px; border-radius: 999px; background: #e7eeea; overflow: hidden;
}
.bar > span { display: block; height: 100%; border-radius: inherit; background: var(--teal); }
.bar.yellow > span { background: #d4a017; }
.bar.red > span { background: var(--red); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.panel {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; box-shadow: var(--shadow);
}
.panel-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 12px;
}
.panel-head h2 { margin: 0; font-size: 18px; }

.list { display: grid; gap: 8px; }
.row {
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 12px; background: #f6f9f7; border: 1px solid #e5eee9;
}
.dot {
  width: 10px; height: 10px; border-radius: 50%; display: inline-block; margin-right: 8px;
  background: #9aabA3;
}
.dot.green { background: var(--green); }
.dot.yellow { background: #d4a017; }
.dot.red { background: var(--red); }

.cards {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px;
}
.card {
  border: 1px solid var(--line); border-radius: 14px; padding: 12px; background: #fbfdfc;
}
.card .name { font-weight: 600; font-size: 14px; }
.card .meta { margin-top: 6px; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.card.green { border-color: #b7e4c8; background: #f3fbf6; }
.card.yellow { border-color: #f0d48a; background: #fffbf0; }
.card.red { border-color: #f2c4bf; background: #fff6f5; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
td.mono { font-family: var(--mono); font-size: 12px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }

.events { display: grid; gap: 8px; max-height: 260px; overflow: auto; }
.event {
  padding: 10px 12px; border-radius: 12px; background: #f6f9f7; border: 1px solid #e5eee9;
  font-size: 13px;
}
.event time { display: block; color: var(--muted); font-family: var(--mono); font-size: 11px; margin-bottom: 4px; }

.issues { margin: 0; padding-left: 18px; }
.issues li { margin: 6px 0; }
.issues:empty::after { content: "No issues detected."; color: var(--muted); }

.foot {
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  color: var(--muted); font-size: 13px; padding: 0 4px;
}

dialog {
  border: 1px solid var(--line); border-radius: 18px; padding: 0; width: min(900px, 94vw);
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(20, 32, 28, 0.35); }
.logs-box { padding: 16px; }
#logs-body {
  margin: 0; max-height: 60vh; overflow: auto; background: #12201b; color: #d7ebe2;
  border-radius: 12px; padding: 14px; font-family: var(--mono); font-size: 12px; white-space: pre-wrap;
}

#history-chart {
  width: 100%; height: 160px; display: block; background: #f7faf8;
  border: 1px solid var(--line); border-radius: 12px;
}

.settings-box { width: min(520px, 94vw); }
.settings-form { display: grid; gap: 12px; }
.settings-form label { display: grid; gap: 6px; font-size: 14px; font-weight: 500; }
.settings-form input[type="text"],
.settings-form input[type="password"],
.settings-form input[type="number"],
.settings-form input:not([type]) {
  border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px;
  font: inherit; background: #f7faf8;
}
.settings-form label.check {
  display: flex; align-items: center; gap: 10px; font-weight: 500;
}
.settings-form label.check input { width: auto; }
.settings-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.settings-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.settings-form hr { border: 0; border-top: 1px solid var(--line); margin: 4px 0; }

@media (max-width: 900px) {
  .vitals { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .vitals { grid-template-columns: 1fr; }
  .settings-row { grid-template-columns: 1fr; }
}