body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fb 0%, #eef4ff 100%);
    color: #1f2937;
}

.container {
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 24px;
}

.card {
    width: min(1280px, 100%);
    background: white;
    border-radius: 24px;
    padding: 24px;
    box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

.admin-dashboard {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
}

.admin-sidebar {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    color: white;
    border-radius: 20px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.sidebar-brand h2 {
    margin: 0;
    font-size: 1.2rem;
}

.sidebar-brand p {
    margin: 4px 0 0;
    color: #cbd5e1;
    font-size: 0.9rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
    background: #2563eb;
}

.sidebar-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 12px;
}

.sidebar-card h3 {
    margin: 0 0 6px;
    font-size: 0.95rem;
}

.sidebar-card p {
    margin: 0;
}

.admin-content {
    min-width: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

label {
    display: flex;
    flex-direction: column;
    font-weight: 600;
    gap: 6px;
}

.full-width {
    grid-column: 1 / -1;
}

input, select, textarea, button, .button-link {
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 1rem;
}

button, .button-link {
    background: #2563eb;
    color: white;
    cursor: pointer;
    border: none;
    text-decoration: none;
    display: inline-block;
}

button:hover, .button-link:hover {
    background: #1d4ed8;
}

.button-link.secondary {
    background: #e2e8f0;
    color: #0f172a;
}

.button-link.secondary:hover {
    background: #cbd5e1;
}

.meta-links {
    margin-top: 16px;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.toolbar.stacked {
    flex-direction: column;
    align-items: flex-start;
}

.filter-bar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px;
    align-items: end;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 12px;
    margin-bottom: 16px;
}

.filter-bar label {
    gap: 6px;
    font-size: 0.95rem;
}

.filter-bar input,
.filter-bar select {
    width: 100%;
    box-sizing: border-box;
}

.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 18px;
}

.kpi-card {
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 14px;
    background: linear-gradient(135deg, #f8fafc 0%, #eef2ff 100%);
}

.payload-cell {
    min-width: 280px;
}

.payload-box {
    margin-top: 8px;
    padding: 8px;
    border-radius: 10px;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.payload-item {
    margin-bottom: 6px;
    font-size: 0.95rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.dashboard-panels {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.section-panel-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.6fr);
    gap: 16px;
    margin-top: 16px;
    align-items: start;
}

.panel-card {
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 16px;
    background: #ffffff;
}

.detail-list {
    margin: 0;
    padding-left: 18px;
    color: #475569;
}

.detail-list li {
    margin-bottom: 8px;
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: #64748b;
    margin-bottom: 8px;
}

.table-wrap {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    border: 1px solid #e5e7eb;
    padding: 8px;
    text-align: left;
    vertical-align: top;
}

th {
    background: #f3f4f6;
}

.error {
    color: #b91c1c;
}

.muted {
    color: #64748b;
}

@media (max-width: 700px) {
    .form-grid, .stats-grid, .dashboard-panels, .kpi-grid, .section-panel-grid {
        grid-template-columns: 1fr;
    }

    .admin-dashboard {
        grid-template-columns: 1fr;
    }

    .admin-sidebar {
        order: 2;
    }
}