/* KPI Grid Layout */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(220px, 100%), 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.kpi-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.kpi-value {
  font-size: 24px;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
}

.kpi-subtext {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Throughput Chart Container */
.chart-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.chart-legend {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 12px;
  font-weight: 600;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-color {
  width: 10px;
  height: 10px;
  border-radius: 2px;
}

.legend-up { background-color: var(--chart-up); }
.legend-down { background-color: var(--chart-down); }

.chart-svg-container {
  width: 100%;
  height: 200px;
  position: relative;
}

.chart-svg-container svg {
  width: 100%;
  height: 100%;
}

/* Mode Banner Card */
.mode-banner {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.mode-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(96, 165, 250, 0.3);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 700;
}

.mode-description {
  color: var(--text-secondary);
  font-size: 13px;
}

/* Server List Cards */
.server-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 16px;
}

.server-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all var(--transition-fast);
}

.server-card.active {
  border-color: var(--accent-primary);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.15);
  background-color: rgba(15, 23, 42, 0.95);
}

.server-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.server-tag {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  word-break: break-all;
}

.server-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.server-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
}

.latency-value {
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.latency-value.green { color: var(--status-success); }
.latency-value.yellow { color: var(--status-warning); }
.latency-value.red { color: var(--status-error); }

/* Login Modal Specifics */
.login-modal {
  max-width: 400px;
}

.login-brand {
  text-align: center;
  margin-bottom: 24px;
}

.login-brand h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 12px;
}

@media (max-width: 640px) {
  .mode-banner,
  .chart-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .chart-legend,
  .server-actions {
    flex-wrap: wrap;
  }

  .chart-card,
  .mode-banner {
    padding: 16px;
  }

  .chart-svg-container {
    height: 180px;
  }
}