:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e2e5ea;
  --text: #1c2330;
  --muted: #66707f;
  --primary: #2f6fed;
  --primary-dark: #2058c8;
  --danger: #d64545;
  --success: #1f9d63;
  --warning: #c77d0a;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(16, 24, 40, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.55;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 16px; }

.topnav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topnav-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  height: 56px;
}
.topnav .brand { font-weight: 700; font-size: 17px; color: var(--text); }
.topnav nav { display: flex; gap: 14px; flex: 1; }
.topnav nav a { color: var(--muted); font-weight: 500; }
.topnav nav a.router-link-active { color: var(--primary); }
.topnav .spacer { flex: 1; }

select, input, textarea {
  font: inherit;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  width: 100%;
}
select { width: auto; }
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(47, 111, 237, 0.3); border-color: var(--primary); }
label { display: block; font-weight: 500; margin-bottom: 4px; color: var(--text); }
.field { margin-bottom: 14px; }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-weight: 500;
  cursor: pointer;
  font-size: 14px;
}
.btn:hover { background: #f0f2f5; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.danger:hover { background: #fdf0f0; }
.btn.sm { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.card + .card { margin-top: 16px; }

.page { padding: 24px 0 48px; }
.page-title { font-size: 20px; font-weight: 700; margin: 0 0 16px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }
.page-head .page-title { margin: 0; }

table.table { width: 100%; border-collapse: collapse; background: var(--surface); }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
.table th { color: var(--muted); font-weight: 600; font-size: 13px; }
.table tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: #eef1f5;
  color: var(--muted);
}
.badge.green { background: #e4f6ec; color: var(--success); }
.badge.blue { background: #e7effd; color: var(--primary); }
.badge.orange { background: #fdf1e0; color: var(--warning); }
.badge.red { background: #fbe6e6; color: var(--danger); }

.grid { display: grid; gap: 16px; }
.grid.products { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.product-card { overflow: hidden; padding: 0; display: flex; flex-direction: column; }
.product-card img { width: 100%; aspect-ratio: 1; object-fit: cover; background: #eef1f5; }
.product-card .body { padding: 12px; }
.product-card .name { font-weight: 600; margin-bottom: 4px; }
.product-card .price { color: var(--primary); font-weight: 700; }

.muted { color: var(--muted); }
.row { display: flex; align-items: center; gap: 12px; }
.between { justify-content: space-between; }
.mt { margin-top: 16px; }
.mb { margin-bottom: 16px; }
.error-text { color: var(--danger); margin: 8px 0; }

.form-narrow { max-width: 420px; margin: 40px auto; }

.auth-layout { display: flex; min-height: 100vh; }
.auth-layout aside {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.auth-layout aside .brand { font-weight: 700; font-size: 16px; padding: 8px 10px 16px; }
.auth-layout aside a {
  display: block;
  padding: 8px 10px;
  border-radius: var(--radius);
  color: var(--muted);
  font-weight: 500;
}
.auth-layout aside a:hover { background: #f0f2f5; text-decoration: none; }
.auth-layout aside a.router-link-active { background: #e7effd; color: var(--primary); }
.auth-layout main { flex: 1; padding: 24px; overflow: auto; }
.auth-layout .main-head { display: flex; justify-content: flex-end; gap: 10px; margin-bottom: 12px; }