/* UM-NIMS Dashboard Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg:        #0f1117;
  --surface:   #1a1d27;
  --surface2:  #21253a;
  --border:    #2d3148;
  --text:      #e8eaf6;
  --text-mute: #7b80a0;
  --blue:      #4f8ef7;
  --green:     #22c55e;
  --red:       #ef4444;
  --amber:     #f59e0b;
  --purple:    #a78bfa;
  --radius:    12px;
  --shadow:    0 4px 24px rgba(0,0,0,0.4);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
.header {
  background: linear-gradient(135deg, #1a237e 0%, #0d47a1 60%, #1565c0 100%);
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 20px rgba(0,0,0,0.5);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-left { display: flex; align-items: center; gap: 14px; }
.logo { font-size: 2rem; }
.header-title { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.01em; }
.header-sub   { font-size: 0.78rem; color: rgba(255,255,255,0.65); margin-top: 2px; }
.header-right { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.last-updated { font-size: 0.78rem; color: rgba(255,255,255,0.6); display: flex; gap: 4px; }

.agent-badge {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  transition: background 0.3s;
}
.agent-ok      { background: rgba(34,197,94,0.25);  color: #4ade80; border: 1px solid #22c55e44; }
.agent-stale   { background: rgba(239,68,68,0.25);  color: #f87171; border: 1px solid #ef444444; }
.agent-unknown { background: rgba(100,100,120,0.25); color: #a0a0c0; border: 1px solid #55557044; }

/* ── Stale banner ───────────────────────────────────────────────────────────── */
.stale-banner {
  background: linear-gradient(90deg, #7f1d1d, #991b1b);
  color: #fecaca;
  text-align: center;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
}
.hidden { display: none !important; }

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ── KPI Grid ───────────────────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(0,0,0,0.5); }
.kpi-icon  { font-size: 2rem; }
.kpi-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-mute); }
.kpi-value { font-size: 2.2rem; font-weight: 700; line-height: 1.1; margin-top: 2px; }

.kpi-total { border-top: 3px solid var(--blue);   } .kpi-total .kpi-value { color: var(--blue);   }
.kpi-up    { border-top: 3px solid var(--green);  } .kpi-up    .kpi-value { color: var(--green);  }
.kpi-down  { border-top: 3px solid var(--red);    } .kpi-down  .kpi-value { color: var(--red);    }
.kpi-maint { border-top: 3px solid var(--amber);  } .kpi-maint .kpi-value { color: var(--amber);  }

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
}
.card-title { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 16px; }
.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}
.card-header-row .card-title { margin-bottom: 0; }

.row-2col {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
}

/* ── Controller breakdown ───────────────────────────────────────────────────── */
.ctrl-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.ctrl-row:last-child { border-bottom: none; }
.ctrl-name { font-weight: 600; width: 100px; flex-shrink: 0; }
.ctrl-bar-wrap { flex: 1; background: var(--surface2); border-radius: 99px; height: 8px; overflow: hidden; }
.ctrl-bar  { height: 100%; border-radius: 99px; background: var(--green); transition: width 0.6s ease; }
.ctrl-counts { font-size: 0.8rem; color: var(--text-mute); white-space: nowrap; }
.ctrl-counts .c-up    { color: var(--green); }
.ctrl-counts .c-down  { color: var(--red); }
.ctrl-counts .c-maint { color: var(--amber); }

/* ── Chart ──────────────────────────────────────────────────────────────────── */
.chart-card { display: flex; flex-direction: column; }
.chart-wrap { flex: 1; display: flex; align-items: center; justify-content: center; max-height: 240px; }

/* ── Filters ────────────────────────────────────────────────────────────────── */
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.filters select,
.filters input {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 0.82rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.filters select:focus,
.filters input:focus { border-color: var(--blue); }
.filters input { width: 200px; }

/* ── Tables ─────────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.845rem; }
thead th {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-mute);
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
thead th:first-child { border-radius: 8px 0 0 0; }
thead th:last-child  { border-radius: 0 8px 0 0; }
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: var(--surface2); }
.loading-cell { text-align: center; color: var(--text-mute); padding: 32px; }

/* ── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-up    { background: rgba(34,197,94,0.15);  color: #4ade80; border: 1px solid #22c55e44; }
.badge-down  { background: rgba(239,68,68,0.15);  color: #f87171; border: 1px solid #ef444444; }
.badge-maint { background: rgba(245,158,11,0.15); color: #fbbf24; border: 1px solid #f59e0b44; }

/* ── Maintenance list ───────────────────────────────────────────────────────── */
.maint-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  gap: 16px;
}
.maint-item:last-child { border-bottom: none; }
.maint-name   { font-weight: 600; }
.maint-meta   { font-size: 0.78rem; color: var(--text-mute); margin-top: 3px; }
.maint-reason { font-size: 0.82rem; color: var(--amber); }
.no-data { color: var(--text-mute); font-size: 0.875rem; padding: 12px 0; }

/* ── Table footer ───────────────────────────────────────────────────────────── */
.table-footer { margin-top: 12px; font-size: 0.78rem; color: var(--text-mute); }

/* ── Footer ─────────────────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 20px;
  font-size: 0.78rem;
  color: var(--text-mute);
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

.loading-text { color: var(--text-mute); font-size: 0.875rem; }

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 1100px) { .row-2col { grid-template-columns: 1fr; } }
@media (max-width: 768px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .header { flex-direction: column; align-items: flex-start; gap: 10px; }
  .container { padding: 16px; }
}
@media (max-width: 480px) { .kpi-grid { grid-template-columns: 1fr 1fr; } }