:root {
  --bg: #f7f7f4;
  --panel: #ffffff;
  --ink: #1f2328;
  --muted: #69707a;
  --line: #e5e7eb;
  --red: #ef2029;
  --dark: #101418;
  --green: #16a34a;
  --amber: #d97706;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, sans-serif; background: var(--bg); color: var(--ink); }
a { color: inherit; text-decoration: none; }
.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.side { background: var(--dark); color: #fff; padding: 18px; }
.brand { display: flex; gap: 10px; align-items: center; margin-bottom: 24px; }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand strong { display: block; font-size: 15px; }
.brand span { color: #aeb4bc; font-size: 11px; }
.nav a { display: block; color: #c9d1d9; padding: 10px 12px; border-radius: 8px; margin-bottom: 4px; font-size: 14px; }
.nav a.active, .nav a:hover { background: rgba(239,32,41,.16); color: #fff; }
.main { padding: 22px; }
.top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.top h1 { margin: 0; font-size: 24px; }
.grid { display: grid; gap: 14px; }
.grid.cards { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 16px; }
.stat b { display: block; font-size: 28px; margin-top: 6px; }
.muted { color: var(--muted); font-size: 13px; }
.btn { border: 0; background: var(--red); color: white; padding: 10px 14px; border-radius: 8px; font-weight: 700; cursor: pointer; display: inline-block; }
.btn.secondary { background: #111827; }
.btn.light { background: #f3f4f6; color: #111827; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; background: white; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; font-size: 13px; vertical-align: top; }
th { background: #f9fafb; color: #374151; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 10px; font: inherit; background: #fff; }
textarea { min-height: 120px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.badge { display: inline-block; padding: 4px 7px; border-radius: 999px; font-size: 11px; font-weight: 700; background: #eef2ff; color: #3730a3; }
.badge.green { background: #dcfce7; color: #166534; }
.badge.amber { background: #fef3c7; color: #92400e; }
.badge.red { background: #fee2e2; color: #991b1b; }
.notice { padding: 12px; border-radius: 8px; background: #fff7ed; border: 1px solid #fed7aa; color: #9a3412; margin-bottom: 14px; }
@media (max-width: 850px) {
  .shell { grid-template-columns: 1fr; }
  .side { position: static; }
  .grid.cards, .form-grid { grid-template-columns: 1fr; }
}