:root {
  --primary: #1268b0;
  --accent: #fab615;
  --ink: #122033;
  --muted: #607083;
  --line: #dce6ef;
  --soft: #f5f8fb;
  --white: #fff;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, Arial, sans-serif; color: var(--ink); background: var(--soft); line-height: 1.5; }
a { color: inherit; text-decoration: none; font-weight: 800; }
.dashboard-shell { display: grid; grid-template-columns: 270px 1fr; min-height: 100vh; }
.sidebar { background: var(--ink); color: #fff; padding: 24px; position: sticky; top: 0; height: 100vh; }
.dash-brand { display: block; font-size: 24px; font-weight: 900; margin-bottom: 24px; }
.dash-brand span { color: var(--accent); }
.sidebar nav { display: grid; gap: 6px; }
.sidebar a { padding: 11px 12px; border-radius: 8px; color: #fff; }
.sidebar nav a:hover { background: rgba(255,255,255,.12); }
.dash-main { min-width: 0; }
.dash-topbar { height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 0 28px; background: #fff; border-bottom: 1px solid var(--line); }
.dash-topbar span { display: block; color: var(--muted); font-size: 14px; }
.topbar-actions { display: flex; gap: 12px; }
.dash-toggle { display: none; }
.dash-notice { margin: 18px 28px 0; padding: 12px 14px; border-radius: 8px; background: #fff4cc; font-weight: 900; }
.messages { margin: 14px 28px; }
.message { padding: 12px; background: #e9f6ee; border-radius: 8px; }
.dash-content { padding: 28px; }
.dash-heading { margin-bottom: 20px; }
.dash-heading h1 { font-size: 34px; margin: 0 0 6px; }
.dash-heading p { color: var(--muted); margin: 0; }
.kpi-grid, .dash-grid, .table-grid, .settings-grid { display: grid; gap: 18px; margin-bottom: 22px; }
.kpi-grid { grid-template-columns: repeat(4, 1fr); }
.dash-grid { grid-template-columns: repeat(3, 1fr); }
.table-grid { grid-template-columns: 1.5fr 1fr; }
.settings-grid { grid-template-columns: repeat(2, 1fr); }
.kpi, .panel { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 20px; box-shadow: 0 12px 30px rgba(18,32,51,.08); }
.kpi span { display: block; color: var(--muted); font-size: 14px; }
.kpi strong { display: block; color: var(--primary); font-size: 28px; margin-top: 8px; }
.panel h2 { margin-top: 0; font-size: 19px; }
.quick-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 20px 0; }
.quick-actions a, .btn { display: inline-flex; justify-content: center; align-items: center; min-height: 42px; padding: 10px 14px; border-radius: 8px; background: var(--primary); color: #fff; border: 0; cursor: pointer; }
.badge { display: inline-flex; border-radius: 999px; padding: 4px 9px; background: #eaf3fb; color: var(--primary); font-size: 12px; font-weight: 900; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 11px; border-bottom: 1px solid var(--line); text-align: left; }
th { color: var(--muted); font-size: 13px; }
.form-row { margin-bottom: 14px; display: grid; gap: 5px; }
.form-control, input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 11px 12px; font: inherit; }
textarea { min-height: 105px; }
.field-error { color: #ad1f1f; margin: 0; }
.chart-bars { display: flex; align-items: end; gap: 10px; min-height: 150px; }
.chart-bars::before, .chart-bars::after, .chart-bars i { content: ""; flex: 1; border-radius: 6px 6px 0 0; background: var(--primary); min-height: 70px; display: block; }
.chart-bars::after { min-height: 130px; background: var(--accent); }
.line-chart { height: 150px; border-radius: 8px; background: linear-gradient(135deg, transparent 45%, var(--primary) 46%, var(--primary) 50%, transparent 51%), #eef6fc; }
.donut { width: 138px; height: 138px; border-radius: 50%; display: grid; place-items: center; margin: 16px auto; background: conic-gradient(var(--primary) 0 76%, #e9eff5 76%); color: var(--ink); font-size: 28px; font-weight: 900; }
.notification.unread { border-left: 5px solid var(--accent); }
.notification-list { display: grid; gap: 14px; }

@media (max-width: 1050px) {
  .dashboard-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; position: fixed; z-index: 40; inset: 0 auto 0 0; width: 270px; }
  .sidebar.is-open { display: block; }
  .dash-toggle { display: inline-flex; }
  .kpi-grid, .dash-grid, .table-grid, .settings-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 680px) {
  .dash-topbar { height: auto; padding: 14px; flex-wrap: wrap; }
  .dash-content, .dash-notice { margin-left: 14px; margin-right: 14px; padding: 18px 0; }
  .kpi-grid, .dash-grid, .table-grid, .settings-grid { grid-template-columns: 1fr; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
}