:root {
  --background: #f7f8f5;
  --surface: #ffffff;
  --foreground: #1c2318;
  --muted: #6b7566;
  --border: #e3e6dd;
  --brand: #3f6b3a;
  --brand-hover: #345a30;
  --brand-soft: #e8f0e4;
  --danger: #b3432f;
  --danger-soft: #fbe9e5;

  --chart-grid: #e1e0d9;
  --chart-axis: #c3c2b7;
  --chart-muted: #898781;
  --chart-series-1: #2a78d6;
  --chart-series-2: #eb6834;
  --status-good-text: #006300;
  --status-critical: #d03b3b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --background: #14170f;
    --surface: #1c2118;
    --foreground: #ecefe7;
    --muted: #9aa393;
    --border: #2c3225;
    --brand: #6fa565;
    --brand-hover: #7fb474;
    --brand-soft: #223022;
    --danger: #e0705a;
    --danger-soft: #331d18;

    --chart-grid: #2c2c2a;
    --chart-axis: #383835;
    --chart-muted: #898781;
    --chart-series-1: #3987e5;
    --chart-series-2: #d95926;
    --status-good-text: #0ca30c;
    --status-critical: #e66767;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--background);
  color: var(--foreground);
  font-family: "Cairo", "Segoe UI", Tahoma, sans-serif;
  font-size: 14px;
}
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }

.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px;
  flex-shrink: 0;
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 16px;
  display: flex;
  flex-direction: column;
}
.sidebar-brand { display: flex; align-items: center; gap: 10px; padding: 0 8px; margin-bottom: 24px; }
.sidebar-brand .logo { width: 36px; height: 36px; border-radius: 8px; background: var(--brand-soft); display: flex; align-items: center; justify-content: center; font-size: 18px; }
.sidebar-brand .title { font-size: 13px; font-weight: 700; }
.sidebar-brand .subtitle { font-size: 11px; color: var(--muted); }

.nav { display: flex; flex-direction: column; gap: 4px; }
.nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: 8px; font-size: 14px; font-weight: 500; color: var(--muted);
}
.nav a:hover { background: color-mix(in srgb, var(--brand-soft) 50%, transparent); color: var(--foreground); }
.nav a.active { background: var(--brand-soft); color: var(--brand); }

.sidebar-footer { margin-top: auto; padding-top: 16px; display: flex; flex-direction: column; gap: 12px; }
.user-card { background: var(--background); border-radius: 8px; padding: 10px 12px; }
.user-card .name { font-size: 14px; font-weight: 500; }
.user-card .role { font-size: 12px; color: var(--muted); }

.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: 8px; padding: 10px 16px; font-size: 14px; font-weight: 600; cursor: pointer; border: none; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-hover); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--muted); }
.btn-outline:hover { color: var(--foreground); }
.btn-outline.danger:hover { border-color: var(--danger); color: var(--danger); }
.btn-block { width: 100%; }

.main { flex: 1; padding: 32px; min-width: 0; }
.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 20px; font-weight: 700; margin: 0; }
.page-header p { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.page-header-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; gap: 16px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 20px; }
.card-table { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.card-table-header { border-bottom: 1px solid var(--border); padding: 12px 20px; font-size: 14px; font-weight: 600; }

table.data th { text-align: right; font-size: 13px; font-weight: 500; color: var(--muted); background: color-mix(in srgb, var(--background) 60%, transparent); padding: 12px 16px; border-bottom: 1px solid var(--border); }
table.data td { padding: 10px 16px; border-bottom: 1px solid var(--border); font-size: 14px; }
table.data tr:last-child td { border-bottom: none; }
table.data .empty { text-align: center; padding: 32px; color: var(--muted); }

.grid { display: grid; gap: 24px; }
.grid-stats { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: 1fr 1fr; }
.grid-charts { grid-template-columns: 1.4fr 1fr; }
@media (max-width: 900px) { .grid-stats { grid-template-columns: repeat(2, 1fr); } .grid-charts, .grid-2 { grid-template-columns: 1fr; } }

.stat-tile { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 20px; }
.stat-tile .label { font-size: 13px; color: var(--muted); }
.stat-tile .value { font-size: 22px; font-weight: 700; margin-top: 8px; }
.stat-tile .delta { font-size: 12px; font-weight: 500; margin-top: 6px; }

.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.badge-good { background: var(--brand-soft); color: var(--brand); }
.badge-low { background: var(--danger-soft); color: var(--danger); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 14px; font-weight: 500; margin-bottom: 6px; }
.form-group input, .form-group select {
  width: 100%; border: 1px solid var(--border); background: var(--background);
  border-radius: 8px; padding: 10px 14px; font-size: 14px; color: var(--foreground); font-family: inherit;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.alert { border-radius: 8px; padding: 10px 14px; font-size: 14px; margin-bottom: 16px; }
.alert-error { background: var(--danger-soft); color: var(--danger); }
.alert-success { background: var(--brand-soft); color: var(--brand); }
.alert-info { background: var(--background); color: var(--foreground); }

.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px; }
.login-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; padding: 32px; }
.login-card .logo { width: 48px; height: 48px; border-radius: 12px; background: var(--brand-soft); display: flex; align-items: center; justify-content: center; font-size: 24px; margin: 0 auto 12px; }
.login-card h1 { text-align: center; font-size: 18px; margin: 0; }
.login-card .subtitle { text-align: center; color: var(--muted); font-size: 13px; margin: 4px 0 24px; }

.chart-svg { width: 100%; height: auto; }
.chart-empty { color: var(--muted); text-align: center; padding: 32px 0; }
.chart-legend { display: flex; gap: 16px; font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.chart-legend .dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-left: 6px; }

.text-muted { color: var(--muted); }
.text-link:hover { color: var(--brand); }

dialog { border: 1px solid var(--border); border-radius: 16px; padding: 0; background: var(--surface); color: var(--foreground); max-width: 420px; width: 100%; }
dialog::backdrop { background: rgba(0,0,0,0.4); }
dialog .dialog-body { padding: 24px; }
dialog h2 { margin: 0 0 16px; font-size: 16px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }