:root {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --ink: #172026;
  --muted: #66727a;
  --line: #dce3e8;
  --green: #14854f;
  --blue: #2563eb;
  --red: #b42318;
  --amber: #b86b00;
  --purple: #6d4aff;
  --shadow: 0 18px 45px rgba(24, 39, 75, .08);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
a { color: inherit; }
.admin-shell { min-height: 100vh; display: grid; grid-template-columns: 280px minmax(0, 1fr); }
.admin-sidebar { background: #122027; color: #dbe7ed; padding: 18px; position: sticky; top: 0; height: 100vh; overflow: auto; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; text-decoration: none; margin-bottom: 22px; }
.brand img { width: 34px; height: 34px; }
.nav-group { color: #8aa0ad; font-size: 12px; text-transform: uppercase; margin: 20px 8px 8px; }
.nav-link { display: block; padding: 9px 10px; border-radius: 8px; text-decoration: none; color: #dbe7ed; font-size: 14px; }
.nav-link:hover, .nav-link.active { background: rgba(255,255,255,.11); color: #fff; }
.admin-main { min-width: 0; display: flex; flex-direction: column; }
.admin-navbar { min-height: 78px; display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 28px; background: #fff; border-bottom: 1px solid var(--line); }
.admin-navbar h1 { margin: 0; font-size: 24px; }
.eyebrow { margin: 0 0 4px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0; }
.admin-user { display: flex; align-items: center; gap: 10px; }
.admin-user-meta { display: grid; text-align: right; font-size: 13px; }
.admin-user-meta span { color: var(--muted); }
.admin-content { padding: 28px; display: grid; gap: 20px; }
.admin-footer { padding: 18px 28px; display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; }
.panel, .stat-card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); }
.panel { padding: 18px; min-width: 0; }
.panel h2 { margin: 0 0 14px; font-size: 17px; }
.panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.stats-grid { display: grid; grid-template-columns: repeat(6, minmax(140px, 1fr)); gap: 14px; }
.stat-card { padding: 16px; display: grid; gap: 8px; border-left: 4px solid var(--blue); }
.stat-card span { color: var(--muted); font-size: 13px; }
.stat-card strong { font-size: 24px; }
.tone-green { border-left-color: var(--green); }
.tone-red { border-left-color: var(--red); }
.tone-amber { border-left-color: var(--amber); }
.tone-purple { border-left-color: var(--purple); }
.chart-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.table-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { border-bottom: 1px solid var(--line); padding: 10px 8px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-weight: 700; text-transform: capitalize; }
td { max-width: 320px; overflow-wrap: anywhere; }
.filters, .form-grid { display: flex; flex-wrap: wrap; gap: 12px; align-items: end; }
label { display: grid; gap: 6px; color: var(--muted); font-size: 13px; font-weight: 700; }
input, select, textarea { min-height: 38px; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; color: var(--ink); font: inherit; background: #fff; }
.button { min-height: 38px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 8px; padding: 8px 12px; font-weight: 700; font-size: 13px; text-decoration: none; background: #fff; cursor: pointer; }
.button-small { min-height: 30px; padding: 5px 8px; font-size: 12px; }
.button-primary { color: #fff; background: var(--green); border-color: var(--green); }
.button-danger { color: #fff; background: var(--red); border-color: var(--red); }
.button-warning { color: #fff; background: var(--amber); border-color: var(--amber); }
.button-muted { background: #f8fafc; }
.badge { display: inline-flex; max-width: 180px; padding: 4px 8px; border-radius: 999px; background: #eef4f1; color: #215640; font-weight: 800; font-size: 12px; overflow-wrap: anywhere; }
.row-actions, .action-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.pagination { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 6px; }
.pagination a { padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; }
.pagination a.active { background: var(--ink); color: #fff; }
.detail-list { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 10px 16px; }
.detail-list dt { color: var(--muted); font-weight: 800; text-transform: capitalize; }
.detail-list dd { margin: 0; overflow-wrap: anywhere; }
.flash-stack { display: grid; gap: 8px; }
.flash { padding: 11px 13px; border-radius: 8px; border: 1px solid var(--line); background: #fff; font-weight: 700; }
.flash-error { border-color: #f2b8b5; color: var(--red); }
.flash-success { border-color: #afdcc0; color: var(--green); }
.flash-warning, .warning-panel { border-color: #ffd99a; color: #7a4700; }
.flash-info { border-color: #bfd3ff; color: #244eaa; }
.empty, .muted { color: var(--muted); }
.narrow { max-width: 760px; }
.auth-body { min-height: 100vh; display: grid; place-items: center; padding: 20px; background: linear-gradient(135deg, #eef7f1, #f8fbff); }
.auth-card { width: min(440px, 100%); background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 28px; box-shadow: var(--shadow); }
.auth-card img { display: block; width: min(280px, 100%); margin-bottom: 20px; }
.auth-card h1 { margin: 0 0 8px; font-size: 28px; }
.auth-card p { color: var(--muted); line-height: 1.6; }
.form-stack { display: grid; gap: 14px; margin-top: 18px; }
.subtle-link { display: inline-block; margin-top: 16px; color: var(--muted); }
.visually-hidden { position: absolute; width: 1px; height: 1px; clip: rect(0 0 0 0); overflow: hidden; white-space: nowrap; }
@media (max-width: 1100px) { .stats-grid { grid-template-columns: repeat(3, 1fr); } .chart-grid, .table-grid { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; height: auto; }
  .admin-navbar, .admin-footer { align-items: flex-start; flex-direction: column; }
  .admin-content { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr; }
  .detail-list { grid-template-columns: 1fr; }
}