body { font-family: Arial, Helvetica, sans-serif; margin: 0; color: #1f2937; background: #f3f4f6; }
.bg { background: #eef2ff; min-height: 100vh; }
.container { max-width: 1180px; margin: 0 auto; padding: 32px 16px; }
.narrow { max-width: 680px; }
.card { background: #fff; border-radius: 14px; padding: 20px; box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08); margin-bottom: 20px; }
.grid { display: grid; gap: 20px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat strong { display: block; font-size: 28px; margin-bottom: 8px; }
.stat span, .muted, .mini-note { color: #6b7280; }
.mini-note { font-size: 12px; margin-top: 6px; }
label { display: block; font-weight: bold; margin: 12px 0 6px; }
input, textarea, select, button { width: 100%; box-sizing: border-box; padding: 11px 12px; border-radius: 10px; border: 1px solid #d1d5db; font-size: 14px; background: #fff; }
button, .button { background: #1769ff; color: #fff; border: 0; cursor: pointer; text-decoration: none; display: inline-block; text-align: center; }
button:hover, .button:hover { opacity: 0.95; }
button.danger { background: #dc2626; }
.alert { padding: 12px 14px; border-radius: 10px; margin: 12px 0; }
.alert.error { background: #fee2e2; color: #991b1b; }
.alert.success { background: #dcfce7; color: #166534; }
.layout { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar { background: #111827; color: #fff; padding: 24px 18px; }
.sidebar h2 { margin-top: 0; font-size: 22px; }
.sidebar nav a { color: #e5e7eb; display: block; padding: 10px 0; text-decoration: none; }
.sidebar nav a.active, .sidebar nav a:hover { color: #fff; font-weight: bold; }
.content { padding: 28px; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 8px; border-bottom: 1px solid #e5e7eb; text-align: left; vertical-align: top; }
code { background: #f3f4f6; padding: 2px 6px; border-radius: 6px; }
.inline-form { display: grid; gap: 8px; }
.compact-form input, .compact-form select, .compact-form button { margin-bottom: 6px; }
.filter-bar { display: grid; grid-template-columns: 1fr 220px 160px; gap: 12px; align-items: end; }
ul { margin-top: 8px; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .grid.two, .grid.three, .grid.four, .filter-bar { grid-template-columns: 1fr; }
}