:root {
  --bg: #0b1018;
  --bg-2: #101826;
  --card: #141c2a;
  --card-2: #1a2434;
  --line: rgba(231, 238, 248, 0.08);
  --text: #e8eef7;
  --muted: #8d9db3;
  --cpu: #3ee0c5;
  --cpu-2: #67a9ff;
  --mem: #9b8cff;
  --disk: #f5c16c;
  --disk-2: #7dd3a0;
  --net: #6aa7ff;
  --net-2: #f0718b;
  --warn: #f5c16c;
  --bad: #ff7b8a;
  --ok: #5ee9a8;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.28);
  --radius: 18px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: "Segoe UI", "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(62, 224, 197, 0.08), transparent 50%),
    radial-gradient(900px 400px at 100% 0%, rgba(155, 140, 255, 0.08), transparent 45%),
    var(--bg);
  color: var(--text);
  padding: 28px clamp(16px, 3vw, 40px) 48px;
}

.eyebrow {
  margin: 0 0 4px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 11px;
  color: var(--cpu);
}
h1, h2 { margin: 0; font-weight: 650; letter-spacing: -0.03em; }
h1 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h2 { font-size: 1.05rem; }
.muted, .sub, .updated { color: var(--muted); }
.sub, .updated { margin: 8px 0 0; font-size: 13px; }

.top {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 22px;
}
.top-right { text-align: right; }
.ranges {
  display: inline-flex;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  gap: 2px;
}
.ranges button, .login-card button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
}
.ranges button {
  padding: 7px 12px;
  border-radius: 999px;
}
.ranges button.active {
  background: var(--card-2);
  color: var(--text);
}

.alert {
  margin-bottom: 18px;
  padding: 12px 16px;
  border: 1px solid rgba(245, 193, 108, 0.35);
  background: rgba(245, 193, 108, 0.08);
  color: var(--warn);
  border-radius: 12px;
  font-size: 14px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 16px;
}
.card {
  background: linear-gradient(180deg, var(--card), #101820);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px 14px;
  box-shadow: var(--shadow);
  min-height: 148px;
}
.card .label {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.card .value {
  font-size: 2rem;
  font-variant-numeric: tabular-nums;
  margin: 10px 0 12px;
  letter-spacing: -0.04em;
}
.card .stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}
.card .stats b {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}
.card.cpu .value { color: var(--cpu); }
.card.mem .value { color: var(--mem); }
.card.disk .value { color: var(--disk); }
.card.load .value { color: var(--net); }

.charts, .split {
  display: grid;
  gap: 14px;
  margin-bottom: 16px;
}
.charts { grid-template-columns: 1fr 1fr; }
.split { grid-template-columns: 1fr 1.15fr; }
.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 16px 10px;
  min-width: 0;
}
.panel header { margin-bottom: 8px; }
.panel canvas {
  width: 100%;
  display: block;
}
.legend {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 12px;
  padding: 8px 2px 6px;
}
.swatch {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 99px;
  margin-right: 6px;
}

.mounts { display: flex; flex-direction: column; gap: 12px; }
.mount { padding: 4px 0 8px; }
.mount .row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
  margin-bottom: 6px;
}
.bar {
  height: 9px;
  background: rgba(255,255,255,0.06);
  border-radius: 99px;
  overflow: hidden;
}
.bar > span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--disk), #ff8d7b);
  border-radius: 99px;
}
.mount .meta { margin-top: 6px; font-size: 12px; color: var(--muted); }

.table-wrap { overflow: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
th, td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
th { color: var(--muted); font-weight: 550; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; }
td:not(:first-child) { font-variant-numeric: tabular-nums; }

footer {
  color: var(--muted);
  font-size: 12px;
  padding-top: 8px;
}

.login {
  position: fixed;
  inset: 0;
  background: rgba(8, 12, 18, 0.86);
  display: grid;
  place-items: center;
  z-index: 20;
  padding: 20px;
}
.login-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: var(--shadow);
}
.login-card input {
  background: #0d141e;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit;
}
.login-card button {
  margin-top: 8px;
  background: var(--cpu);
  color: #08201c;
  border-radius: 10px;
  padding: 10px 12px;
  font-weight: 700;
}
.error { color: var(--bad); font-size: 13px; }
.hidden { display: none !important; }
.empty { color: var(--muted); padding: 18px 4px; }

@media (max-width: 1100px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .charts, .split { grid-template-columns: 1fr; }
  .top { flex-direction: column; align-items: start; }
  .top-right { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}