/* ArenaCRM Design System
   Tokens, themes, and component styles.
   Progressive enhancement atop Bootstrap 5.
*/

:root {
  --ds-font-sans: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --ds-radius-sm: 8px;
  --ds-radius-md: 12px;
  --ds-radius-lg: 16px;

  --ds-shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
  --ds-shadow-md: 0 8px 24px rgba(0,0,0,0.08);
  --ds-shadow-lg: 0 14px 40px rgba(0,0,0,0.12);

  --ds-brand: #0D6EFD; /* Bootstrap primary */
  --ds-brand-600: #0B5ED7;
  --ds-accent: #FF750F;

  --ds-bg: #F7F9FC;
  --ds-surface: #FFFFFF;
  --ds-muted: #6B7280;
  --ds-border: #E5E7EB;
  --ds-text: #111827;

  --ds-success: #22C55E;
  --ds-warning: #F59E0B;
  --ds-danger: #EF4444;
  --ds-info: #3B82F6;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ds-bg: #0B0F16;
    --ds-surface: #111827;
    --ds-border: #1F2937;
    --ds-text: #E5E7EB;
    --ds-muted: #9CA3AF;
    --ds-shadow-sm: 0 4px 12px rgba(0,0,0,0.35);
    --ds-shadow-md: 0 8px 24px rgba(0,0,0,0.45);
    --ds-shadow-lg: 0 14px 40px rgba(0,0,0,0.55);
  }
}

/* Base */
html, body { background: var(--ds-bg); color: var(--ds-text); font-family: var(--ds-font-sans); }
.container, .container-fluid { padding-left: 16px; padding-right: 16px; }

/* Topbar */
.topbar { background: var(--ds-surface); border-bottom: 1px solid var(--ds-border); box-shadow: var(--ds-shadow-sm); }
.navbar .nav-link { font-weight: 600; color: var(--ds-muted); }
.navbar .nav-link.active, .navbar .nav-link:hover { color: var(--ds-text); }

/* Cards */
.card { border: 1px solid var(--ds-border); border-radius: var(--ds-radius-lg); box-shadow: var(--ds-shadow-sm); overflow: hidden; }
.card-header { background: transparent; border-bottom: 1px solid var(--ds-border); font-weight: 600; }
.ui-card { border-radius: var(--ds-radius-lg); box-shadow: var(--ds-shadow-sm); }

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.card-kpi { background: var(--ds-surface); border: 1px solid var(--ds-border); border-radius: var(--ds-radius-md); padding: 14px 16px; box-shadow: var(--ds-shadow-sm); }
.card-kpi .label { font-weight: 600; color: var(--ds-muted); }
.card-kpi .value { font-size: 22px; font-weight: 700; letter-spacing: .3px; }

/* Tables */
.table.ui-table { border-color: var(--ds-border); }
.table.ui-table thead th { background: var(--ds-surface); border-bottom: 1px solid var(--ds-border); color: var(--ds-muted); font-weight: 600; }
.table.ui-table tbody tr { transition: background .2s ease; }
.table.ui-table tbody tr:hover { background: rgba(13,110,253,0.04); }
.table.ui-table td, .table.ui-table th { vertical-align: middle; }

/* Forms */
.form-control, .form-select { border-radius: var(--ds-radius-md); border-color: var(--ds-border); }
.form-control:focus, .form-select:focus { border-color: var(--ds-brand); box-shadow: 0 0 0 3px rgba(13,110,253,0.15); }
.form-label { font-weight: 600; color: var(--ds-muted); }

/* Buttons */
.btn { border-radius: var(--ds-radius-md); font-weight: 600; letter-spacing: .2px; }
.btn-primary { background: var(--ds-brand); border-color: var(--ds-brand); }
.btn-primary:hover { background: var(--ds-brand-600); border-color: var(--ds-brand-600); }
.btn-outline-secondary { color: var(--ds-text); border-color: var(--ds-border); }
.btn-outline-secondary:hover { background: #F3F4F6; }
.btn-warning { color: #1F2937; }

/* Chips / Badges */
.chip { display: inline-block; padding: 6px 12px; border-radius: 999px; font-weight: 700; font-size: 12px; letter-spacing:.2px; box-shadow: var(--ds-shadow-sm); }
.chip.booked { background-color: #E63946; color: #FFFFFF; }
.chip.available { background-color: #22C55E; color: #FFFFFF; }
.chip.pending { background-color: #F59E0B; color: #0B0F16; }
.chip.completed { background-color: #0D6EFD; color: #FFFFFF; }
.chip.cancelled { background-color: #EF4444; color: #FFFFFF; }

/* Toasts */
.admin-toast-container { position: fixed; top: 1rem; right: 1rem; z-index: 1050; display: flex; flex-direction: column; gap: .5rem; }
.admin-toast { background: var(--ds-surface); color: var(--ds-text); padding: .75rem 1rem; border-radius: var(--ds-radius-md); box-shadow: var(--ds-shadow-md); border: 1px solid var(--ds-border); }
.admin-toast .title { font-weight: 700; margin-right: .25rem; }
.admin-toast .time { color: var(--ds-muted); font-size: .85rem; margin-left: .5rem; }

/* Utilities */
.muted { color: var(--ds-muted); }
.nowrap { white-space: nowrap; }
.shadow-sm { box-shadow: var(--ds-shadow-sm) !important; }
.shadow-md { box-shadow: var(--ds-shadow-md) !important; }
.shadow-lg { box-shadow: var(--ds-shadow-lg) !important; }

/* Interactive subtle animation */
.btn, .nav-link, .card, .card-kpi { transition: transform .08s ease, box-shadow .15s ease; }
.btn:active, .card:active, .card-kpi:active { transform: translateY(1px); box-shadow: var(--ds-shadow-sm); }
/* Accounting KPI Grid and Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.kpi-card {
    background: #ffffff;
    border: 1px solid #e5e7eb;
    padding: 20px;
    border-radius: 10px;
}

.kpi-title {
    font-size: 13px;
    color: #6b7280;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 26px;
    font-weight: 600;
}

/* Accounting Tables */
.accounting-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
}

.accounting-table th {
    text-align: left;
    font-size: 12px;
    text-transform: uppercase;
    color: #6b7280;
    padding: 12px;
    border-bottom: 1px solid #e5e7eb;
}

.accounting-table td {
    padding: 14px 12px;
    border-bottom: 1px solid #f3f4f6;
}

.money {
    text-align: right;
    font-weight: 500;
}

/* Status Badges */
.badge {
    padding: 4px 8px;
    font-size: 11px;
    border-radius: 20px;
    font-weight: 500;
}

.badge-paid { background: #d1fae5; color: #065f46; }
.badge-due { background: #dbeafe; color: #1e40af; }
.badge-overdue { background: #fee2e2; color: #991b1b; }
.badge-void { background: #e5e7eb; color: #374151; }

/* Invoice Total Emphasis */
.invoice-total {
    font-size: 22px;
    font-weight: 600;
    text-align: right;
    margin-top: 20px;
}

/* Optional aging row color */
.row-danger { background: #fff5f5; }