:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Softer, eye-friendly palette */
  --color-bg: #f5f5f7;
  --color-surface: #ffffff;
  --color-surface-alt: #e8e8ed;
  --color-text-primary: #1d1d1f;
  --color-text-secondary: #6e6e73;
  --color-border: #d2d2d7;

  /* Monochrome Primary */
  --color-primary: #1d1d1f;
  --color-primary-hover: #424245;

  /* Finance Colors (kept as requested) */
  --color-success: #34c759;
  --color-warning: #ffcc00;
  --color-danger: #ff3b30;
  --color-info: #5ac8fa;
  --color-gray: #8e8e93;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --radius-sm: 4px;
  --radius-md: 8px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
}

/* Minimal Navbar */
.navbar {
  background-color: var(--color-surface) !important;
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm) !important;
  padding: 0.75rem 1rem;
}

.navbar-brand {
  color: var(--color-primary) !important;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.nav-link {
  color: var(--color-text-secondary) !important;
  font-weight: 500;
  font-size: 0.9rem;
}

.nav-link:hover {
  color: var(--color-primary) !important;
}

/* Cards */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.card-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  font-weight: 600;
  font-size: 0.95rem;
}

/* Buttons: Strict Monochrome */
.btn {
  border-radius: var(--radius-sm);
  font-weight: 500;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.btn-primary,
.btn-primary:focus {
  background-color: #000000;
  border-color: #000000;
  color: #ffffff;
}

.btn-primary:hover {
  background-color: #333333;
  border-color: #333333;
}

.btn-secondary {
  background-color: #ffffff;
  border: 1px solid var(--color-border);
  color: #000000;
}

.btn-secondary:hover {
  background-color: #f5f5f5;
  border-color: #d0d0d0;
  color: #000000;
}

.btn-outline-dark {
  border-color: #000000;
  color: #000000;
}

.btn-outline-dark:hover {
  background-color: #000000;
  color: #ffffff;
}

/* Inputs */
.form-control,
.form-select {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}

.form-control:focus,
.form-select:focus {
  border-color: #000000;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.1);
}

/* Tables */
.table {
  font-size: 0.9rem;
}

.table th {
  background-color: #f8f9fa;
  color: #555;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.table-bordered td,
.table-bordered th {
  border-color: var(--color-border);
}

/* Finance Cards - Kept as requested */
.card-finance-available {
  background-color: var(--color-success) !important;
  color: white;
  border: none;
}

.card-finance-utility {
  background-color: var(--color-warning) !important;
  color: #1d1d1f;
  border: none;
}

.card-finance-charges {
  background-color: var(--color-danger) !important;
  color: white;
  border: none;
}

.card-finance-income {
  background-color: var(--color-gray) !important;
  color: white;
  border: none;
}

/* Pagination */
.pagination-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}

.pagination-btn {
  background: white;
  border: 1px solid var(--color-border);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.85rem;
  color: #000;
}

.pagination-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: #f5f5f5;
}

.pagination-btn:hover:not(:disabled) {
  background-color: #f0f0f0;
}

.scroll-area {
  max-height: 400px;
  overflow-y: auto;
}