/* =========================================================================
   Admin Dashboard — dark theme (ad- prefix)
   Professional platform dashboard with gradient mesh background, KPI cards,
   Chart.js chart panels, top restaurants table, commission summary, quick actions.
   DarkFoodTheme v2.0 palette: #0F1412 bg, #1A1D1C cards, #2E2E2E borders,
   #2DD4BF accent (teal), #22C55E green, #F59E0B amber, #8B5CF6 purple,
   #3B82F6 blue, #EF4444 red.
   ========================================================================= */

/* ── Page container with gradient mesh background ──────────────── */
.ad-page {
    background: #0F1412;
    background-image:
        radial-gradient(ellipse at 10% 20%, rgba(45, 212, 191, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 80%, rgba(34, 197, 94, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(139, 92, 246, 0.03) 0%, transparent 60%);
    min-height: 100vh;
    padding-bottom: 2rem;
}

/* ── Page head (title bar) ──────────────────────────────────────── */
.ad-head {
    padding: 1.25rem;
    border-bottom: 2px solid #2E2E2E;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}
.ad-head h1 {
    color: #FFFFFF;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}
.ad-head h1 i { color: #2DD4BF; font-size: 1.25rem; }
.ad-sub { color: #6B7280; font-size: 0.813rem; margin-top: 4px; }

/* ── Date filter bar ────────────────────────────────────────────── */
.ad-date-filter {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.ad-input, .ad-select {
    padding: 0.5rem 0.75rem;
    background: #1A1D1C;
    border: 1px solid #2E2E2E;
    border-radius: 0.5rem;
    color: #FFFFFF;
    font-size: 0.875rem;
    outline: none;
    font-family: inherit;
    box-sizing: border-box;
    min-width: 130px;
    transition: border-color 0.2s;
}
.ad-input:focus, .ad-select:focus { border-color: #2DD4BF; box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.08); }
.ad-select { cursor: pointer; }
.ad-select option { background: #1A1D1C; }

/* ── Buttons ─────────────────────────────────────────────────────── */
.ad-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 0.375rem;
    cursor: pointer; font-weight: 700; font-size: 0.813rem;
    border-radius: 0.5rem; transition: all 0.15s; font-family: inherit;
    padding: 0.5rem 1rem; border: none;
    background: linear-gradient(135deg, #2DD4BF, #22C55E);
    color: #0F1412; box-shadow: 0 2px 8px rgba(45, 212, 191, 0.2);
}
.ad-btn:hover { box-shadow: 0 4px 16px rgba(45, 212, 191, 0.3); transform: translateY(-1px); }
.ad-btn.sm { padding: 0.4rem 0.75rem; font-size: 0.75rem; font-weight: 600; box-shadow: none; }
.ad-btn.sm:hover { transform: none; box-shadow: 0 2px 8px rgba(45, 212, 191, 0.2); }

/* ── Body / sections ──────────────────────────────────────────── */
.ad-body { padding: 1.25rem; }
.ad-field { display: flex; flex-direction: column; gap: 4px; }
.ad-field label { color: #6B7280; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }

/* ── KPI / stat cards ───────────────────────────────────────────── */
.ad-kpis {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 1.25rem;
}
.ad-kpi {
    background: #1A1D1C;
    border: 1px solid #2E2E2E;
    border-radius: 14px;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
    position: relative;
    overflow: hidden;
}
.ad-kpi::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, #2DD4BF, #22C55E);
    opacity: 0.5;
}
.ad-kpi.teal::before { background: linear-gradient(90deg, #2DD4BF, #22C55E); }
.ad-kpi.green::before { background: linear-gradient(90deg, #22C55E, #16A34A); }
.ad-kpi.amber::before { background: linear-gradient(90deg, #F59E0B, #D97706); }
.ad-kpi.purple::before { background: linear-gradient(90deg, #8B5CF6, #7C3AED); }
.ad-kpi.blue::before { background: linear-gradient(90deg, #3B82F6, #2563EB); }
.ad-kpi.red::before { background: linear-gradient(90deg, #EF4444, #DC2626); }
.ad-kpi-icon {
    width: 48px; height: 48px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; flex-shrink: 0;
}
.ad-kpi.teal .ad-kpi-icon { background: rgba(45, 212, 191, 0.12); color: #2DD4BF; }
.ad-kpi.green .ad-kpi-icon { background: rgba(34, 197, 94, 0.12); color: #22C55E; }
.ad-kpi.amber .ad-kpi-icon { background: rgba(245, 158, 11, 0.12); color: #F59E0B; }
.ad-kpi.purple .ad-kpi-icon { background: rgba(139, 92, 246, 0.12); color: #8B5CF6; }
.ad-kpi.blue .ad-kpi-icon { background: rgba(59, 130, 246, 0.12); color: #3B82F6; }
.ad-kpi.red .ad-kpi-icon { background: rgba(239, 68, 68, 0.12); color: #EF4444; }
.ad-kpi-body { min-width: 0; }
.ad-kpi-value { color: #FFFFFF; font-size: 1.5rem; font-weight: 700; line-height: 1; }
.ad-kpi-label {
    color: #6B7280; font-size: 0.75rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em; margin-top: 6px;
}
.ad-kpi-sub { color: #6B7280; font-size: 0.75rem; margin-top: 2px; }

/* ── Grid layout for chart panels ─────────────────────────────── */
.ad-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 1.25rem;
}
.ad-grid:last-child { margin-bottom: 0; }

/* ── Panels (card containers) ───────────────────────────────────── */
.ad-panel {
    background: #1A1D1C;
    border: 1px solid #2E2E2E;
    border-radius: 16px;
    padding: 24px;
}
.ad-panel h3 {
    color: #FFFFFF; font-size: 1rem; font-weight: 700; margin: 0 0 1rem;
    display: flex; align-items: center; gap: 0.5rem;
}
.ad-panel h3 i { color: #2DD4BF; font-size: 1.125rem; }

/* ── Chart containers ─────────────────────────────────────────── */
.ad-chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

/* ── Commission summary ──────────────────────────────────────────── */
.ad-comm-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.ad-comm-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: #252927;
    border-radius: 12px;
}
.ad-comm-label {
    color: #9CA3AF;
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
}
.ad-comm-value {
    color: #FFFFFF;
    font-size: 1.125rem;
    font-weight: 700;
}
.ad-comm-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 18px;
    background: linear-gradient(135deg, rgba(45, 212, 191, 0.08), rgba(34, 197, 94, 0.06));
    border: 1px solid rgba(45, 212, 191, 0.15);
    border-radius: 12px;
}
.ad-comm-pending {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.12);
    border-radius: 10px;
    font-size: 0.875rem;
}

/* ── Restaurants table ──────────────────────────────────────────── */
.ad-table-wrap { overflow-x: auto; }
.ad-table {
    width: 100%; border-collapse: collapse;
}
.ad-table thead th {
    color: #9CA3AF;
    font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em;
    padding: 10px 12px; text-align: left; border-bottom: 1px solid #2E2E2E;
    white-space: nowrap;
}
.ad-table tbody td {
    color: #D1D5DB; font-size: 0.813rem;
    padding: 10px 12px; border-bottom: 1px solid #252927;
}
.ad-table tbody tr { transition: background 0.15s; }
.ad-table tbody tr:hover { background: rgba(45, 212, 191, 0.04); }
.ad-table .ad-num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.ad-rank {
    width: 28px; height: 28px; border-radius: 50%;
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 0.75rem; flex-shrink: 0;
    background: rgba(45, 212, 191, 0.12); color: #2DD4BF;
}
.ad-rank.gold { background: rgba(245, 158, 11, 0.15); color: #F59E0B; }
.ad-rank.silver { background: rgba(156, 163, 175, 0.15); color: #9CA3AF; }
.ad-rank.bronze { background: rgba(180, 130, 80, 0.15); color: #CD7F32; }

/* ── Quick actions grid ──────────────────────────────────────────── */
.ad-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.ad-action {
    display: flex; align-items: center; gap: 12px;
    padding: 16px; background: #252927;
    border: 1px solid #2E2E2E; border-radius: 12px;
    cursor: pointer; transition: all 0.2s;
    text-decoration: none;
}
.ad-action:hover {
    border-color: #2DD4BF; background: rgba(45, 212, 191, 0.06);
    transform: translateY(-1px);
}
.ad-action-icon {
    width: 44px; height: 44px; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.125rem; flex-shrink: 0;
}
.ad-action-icon.teal { background: rgba(45, 212, 191, 0.12); color: #2DD4BF; }
.ad-action-icon.green { background: rgba(34, 197, 94, 0.12); color: #22C55E; }
.ad-action-icon.amber { background: rgba(245, 158, 11, 0.12); color: #F59E0B; }
.ad-action-icon.purple { background: rgba(139, 92, 246, 0.12); color: #8B5CF6; }
.ad-action-icon.blue { background: rgba(59, 130, 246, 0.12); color: #3B82F6; }
.ad-action-icon.red { background: rgba(239, 68, 68, 0.12); color: #EF4444; }
.ad-action-text { color: #FFFFFF; font-size: 0.875rem; font-weight: 600; }
.ad-action-sub { color: #6B7280; font-size: 0.75rem; margin-top: 2px; }

/* ── Muted text ──────────────────────────────────────────────────── */
.ad-muted { color: #6B7280; }

/* ── Loading / Empty / Error states ─────────────────────────────── */
.ad-loading {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 4rem 1rem; color: #6B7280;
}
.ad-loading i { font-size: 2.5rem; margin-bottom: 0.75rem; display: block; color: #2DD4BF; }
.ad-loading p { color: #fff; font-size: 1.063rem; font-weight: 600; margin: 0; }
.ad-empty {
    display: flex; flex-direction: column; align-items: center;
    padding: 3rem 1rem; color: #6B7280; text-align: center;
}
.ad-empty i { font-size: 2.5rem; margin-bottom: 0.75rem; color: #4B5563; }
.ad-empty-title { color: #9CA3AF; font-weight: 600; font-size: 0.938rem; margin-bottom: 4px; }
.ad-empty-desc { color: #6B7280; font-size: 0.813rem; }

/* ── Responsive ──────────────────────────────────────────────────── */
@media (max-width: 1400px) {
    .ad-kpis { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 1100px) {
    .ad-kpis { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
    .ad-kpis { grid-template-columns: repeat(2, 1fr); }
    .ad-grid { grid-template-columns: 1fr; }
    .ad-head { flex-direction: column; align-items: flex-start; }
    .ad-date-filter { width: 100%; }
}
@media (max-width: 520px) {
    .ad-kpis { grid-template-columns: 1fr; }
    .ad-actions { grid-template-columns: 1fr; }
    .ad-body { padding: 1rem; }
    .ad-head { padding: 1rem; }
}