/* Dashboard Infra — tema 3PWeb, dark mode */
:root {
  --primary: #0f766e;
  --primary-hover: #0d5f5a;
  --secondary: #38bdf8;
  --accent: #ff5722;
  --bg-dark: #0b1120;
  --bg-card: #0f172a;
  --bg-card-hover: #1e293b;
  --bg-body: #020617;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --border: rgba(148, 163, 184, 0.2);
  --success: #22c55e;
  --warning: #eab308;
  --danger: #ef4444;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg-body);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header fixo */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
}
.header-inner {
  max-width: 1920px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.header-brand { display: flex; align-items: center; gap: 0.5rem; }
.header-logo { font-weight: 700; color: var(--secondary); font-size: 1.1rem; }
.header-sep { color: var(--text-muted); }
.header-title { font-weight: 600; color: var(--text); }
.header-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.header-meta span + span::before { content: '·'; margin-right: 1rem; color: var(--border); }
.header-status { margin-left: 0.25rem; }

/* Resumo executivo */
.block-executive {
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(15, 23, 42, 0.95) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.executive-inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.health-badge {
  font-weight: 700;
  font-size: 1rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.health-ok { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.health-atencao { background: rgba(234, 179, 8, 0.25); color: var(--warning); }
.health-critico { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.executive-summary {
  font-size: 0.9rem;
  color: var(--text-muted);
}
.alertas-criticos-wrap[aria-hidden="true"] { display: none; }
.alertas-criticos-wrap { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.alertas-criticos-list { margin: 0; padding-left: 1.25rem; color: var(--text-muted); font-size: 0.875rem; }
.alerta-item { margin: 0.25rem 0; }
.alerta-item.alerta-disco { color: var(--warning); }
.alerta-item.alerta-servico { color: var(--danger); }
.alerta-item.alerta-cpu, .alerta-item.alerta-ram { color: var(--warning); }

/* Sistema ao vivo */
.live-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 900px) { .live-grid { grid-template-columns: 1fr; } }
.live-card { min-width: 0; }
.connections-cards {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.conn-card {
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.5rem;
  min-width: 120px;
  text-align: center;
}
.conn-value { display: block; font-size: 1.5rem; font-weight: 700; color: var(--secondary); font-variant-numeric: tabular-nums; }
.conn-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }

/* Sparklines */
.spark-wrap { display: block; margin-top: 0.25rem; height: 24px; }
.spark-wrap .sparkline { display: block; color: var(--primary); opacity: 0.9; }

/* Main */
.main {
  flex: 1;
  max-width: 1920px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.subsection-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  margin: 1.5rem 0 0.75rem 0;
}
.subsection-title:first-child { margin-top: 0; }
.table-caption {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0.5rem 0 0 0;
}

/* Hero cards */
.hero { margin-bottom: 2rem; }
.cards-hero {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.card:hover { border-color: var(--primary); box-shadow: var(--shadow); }
.card-inner { display: flex; flex-direction: column; gap: 0.5rem; }
.card-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.card-value { font-size: 1.25rem; font-weight: 700; color: var(--text); }
.card-bar {
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
}
.card-bar-fill {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px;
  transition: width 0.3s ease;
}
.card-hero .card-value { font-size: 1.1rem; }

/* Badges */
.badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-ok { background: rgba(34, 197, 94, 0.2); color: var(--success); }
.badge-warn { background: rgba(234, 179, 8, 0.2); color: var(--warning); }
.badge-err { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge-muted { background: rgba(148, 163, 184, 0.2); color: var(--text-muted); }

/* Blocos */
.block { margin-bottom: 2.5rem; }
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}
.cards-storage .card { min-width: 0; }
.cards-services .card { min-width: 0; }
.cards-security .card { min-width: 0; }

/* Tabelas */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.data-table th,
.data-table td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th {
  background: rgba(0,0,0,0.2);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}
.data-table tbody tr:hover { background: var(--bg-card-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }

/* Tabs inventário */
.tabs { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.tab-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font);
  font-size: 0.85rem;
}
.tab-btn:hover { color: var(--text); border-color: var(--primary); }
.tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Footer */
.footer {
  padding: 0.75rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Loading */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 6, 23, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 1000;
}
.loading-overlay[aria-hidden="false"] { display: flex; }
.loading-overlay span { font-size: 0.9rem; color: var(--text-muted); }
.spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.footer-updating {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.8;
  visibility: hidden;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Util */
.num { font-variant-numeric: tabular-nums; }
.mono { font-family: ui-monospace, monospace; font-size: 0.9em; }
.text-muted { color: var(--text-muted); }
.card-value-small { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; }

/* UPS power failure alert — só quando energia falhou */
.ups-power-alert {
  display: none;
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
}
.ups-power-alert[aria-hidden="false"] { display: block; }
.ups-power-alert.ups-alert-warning { border-left: 4px solid var(--warning); }
.ups-power-alert.ups-alert-critical { border-left: 4px solid var(--danger); }