/* =====================
   COLOR SYSTEM
===================== */
:root {
  --bg: #f1f5f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;

  --cpu: #3b82f6;
  --mem: #14b8a6;
  --disk: #8b5cf6;
  --load: #f59e0b;
  --ok: #22c55e;
}

[data-theme="dark"] {
  --bg: #0b0f14;
  --card: #161b22;
  --text: #e5e7eb;
  --muted: #9ca3af;
}

/* BASE */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 1200px;
  margin: auto;
  padding: 40px 32px 32px;
}

/* HEADER */
.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.title h1 {
  font-size: 22px;
  font-weight: 600;
  margin: 0;
}

.host {
  font-size: 14px;
  color: var(--muted);
  margin-top: 6px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
}

.dot {
  width: 8px;
  height: 8px;
  background: var(--ok);
  border-radius: 50%;
}

/* CAPACITY */
.capacity {
  background: var(--card);
  border-radius: 16px;
  padding: 18px 20px;
  min-width: 210px;
}

.capacity h4 {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  margin: 0 0 16px;
  letter-spacing: .04em;
}

.capacity-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  margin-bottom: 12px;
}

.capacity-row span:first-child {
  color: var(--muted);
}

/* METRICS */
.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px,1fr));
  gap: 28px;
  margin-bottom: 48px;
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 22px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.card h3 {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  margin: 0 0 10px;
  letter-spacing: .04em;
}

.value {
  font-size: 28px;
  font-weight: 600;
}

.sub {
  margin-top: 12px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

/* RING */
.ring {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: conic-gradient(
    var(--color) calc(var(--value) * 1%),
    rgba(148,163,184,.22) 0
  );
}

[data-theme="dark"] .ring {
  background: conic-gradient(
    var(--color) calc(var(--value) * 1%),
    rgba(148,163,184,.14) 0
  );
}

.ring::after {
  content: "";
  position: absolute;
  inset: 6px;
  background: var(--card);
  border-radius: 50%;
}

/* FILTERS */
.filters {
  display: flex;
  gap: 8px;
  margin: 8px 0 20px;
}

.filter {
  padding: 6px 12px;
  font-size: 13px;
  color: var(--muted);
  background: var(--card);
  border-radius: 16px;
  cursor: pointer;
}

.filter.active {
  color: var(--text);
  font-weight: 500;
}

/* CHARTS */
.charts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px,1fr));
  gap: 32px;
}

.chart-card {
  background: var(--card);
  border-radius: 16px;
  padding: 24px;
}

.chart-title {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 18px;
}

canvas {
  height: 260px !important;
}

/* DATA INFO */
.data-info {
  margin-top: 16px;
  text-align: right;
  font-size: 12px;
  color: var(--muted);
}

/* FOOTER */
footer {
  margin-top: 56px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
}

.toggle {
  cursor: pointer;
  width: 18px;
  height: 18px;
}

/* THEME ICONS */
.icon-sun { display: none; }
.icon-moon { display: block; }

[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }