:root {
  --brand-dark: #0f172a;
  --brand-darker: #0b1120;
  --brand-accent: #38bdf8;
  --brand-accent-secondary: #6366f1;
  --brand-muted: #475569;
  --brand-light: #f8fafc;
}

body {
  font-family: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--brand-light);
  color: var(--brand-dark);
  overflow-x: hidden;
}

.app-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-footer {
  margin-top: auto;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.875rem;
  color: var(--brand-muted);
}

.navbar-logo {
  max-height: 44px;
  width: auto;
  filter: drop-shadow(0 6px 18px rgba(56, 189, 248, 0.35));
}

.dashboard-tabs {
  margin-bottom: 1rem;
  border-bottom: 2px solid #e2e8f0;
  display: flex;
  gap: 0.25rem;
}

.dashboard-tab {
  border: none !important;
  background: transparent;
  color: var(--brand-muted) !important;
  font-weight: 500;
  padding: 0.75rem 1.5rem !important;
  border-radius: 0.75rem 0.75rem 0 0;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.dashboard-tab:hover {
  color: var(--brand-dark) !important;
  background-color: rgba(56, 189, 248, 0.1) !important;
}

.dashboard-tab--selected {
  color: var(--brand-dark) !important;
  background-color: rgba(56, 189, 248, 0.12) !important;
  border-bottom: 3px solid var(--brand-accent) !important;
}

.dashboard-card {
  border: none;
  border-radius: 1.5rem;
  box-shadow: 0 20px 48px rgba(15, 23, 42, 0.12);
  overflow: hidden;
  background: #ffffff;
}

.dashboard-card .card-body {
  padding: 1.5rem 1.75rem;
}

.dashboard-graph {
  min-height: 320px;
}

.dashboard-content > .alert {
  margin-bottom: 1.5rem;
}

.quality-alert {
  border-radius: 1.25rem;
  box-shadow: 0 18px 36px rgba(15, 23, 42, 0.14);
}

.dashboard-error {
  padding: 2rem 0;
}

.DateInput {
  z-index: 1100 !important;
}

@media (max-width: 992px) {
  .dashboard-card .card-body {
    padding: 1.25rem;
  }
}

@media (max-width: 576px) {
  .dashboard-tabs {
    flex-wrap: wrap;
  }

  .dashboard-tab {
    flex: 1 1 45%;
    text-align: center;
  }

  .dashboard-card {
    border-radius: 1rem;
  }
}