:root {
  --blue: #1d4ed8;
  --blue-dark: #1e3a8a;
  --bg: #f4f6f9;
  --card: #ffffff;
  --border: #dde2ea;
  --text: #1f2937;
  --muted: #6b7280;
  --danger: #dc2626;
  --green: #15803d;
  font-family: "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
}

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

.topbar {
  background: var(--blue-dark);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.topbar .brand {
  font-weight: 600;
  font-size: 16px;
}

.topbar nav a {
  color: #dbe4ff;
  margin-left: 18px;
  font-size: 14px;
}
.topbar nav a:hover { color: #fff; }

.container {
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 16px 48px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}

h1 { font-size: 22px; margin: 0 0 16px; }
h2 { font-size: 18px; margin: 0 0 12px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 4px;
}

input[type=text], input[type=date], input[type=number], input[type=password], input[type=tel], textarea, select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}

textarea { resize: vertical; }

.field { margin-bottom: 14px; }

.btn {
  display: inline-block;
  padding: 9px 16px;
  border-radius: 6px;
  border: 1px solid var(--blue);
  background: var(--blue);
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  font-family: inherit;
}
.btn:hover { background: var(--blue-dark); border-color: var(--blue-dark); }

.btn.secondary {
  background: #fff;
  color: var(--blue);
}
.btn.secondary:hover { background: #eef2ff; }

.btn.danger {
  background: #fff;
  color: var(--danger);
  border-color: var(--danger);
}
.btn.danger:hover { background: #fef2f2; }

.btn.small { padding: 5px 10px; font-size: 13px; }

.remark-cell { min-width: 160px; }
.remark-image-wrap { margin-top: 6px; }
.remark-thumb {
  display: block;
  max-width: 70px;
  max-height: 70px;
  border-radius: 4px;
  border: 1px solid var(--border);
  margin-bottom: 4px;
  object-fit: cover;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
th, td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}
th {
  background: #eef1f6;
  font-weight: 600;
  white-space: nowrap;
}
tr:nth-child(even) td { background: #fafbfc; }

.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); font-size: 14px; margin-bottom: 10px; }
.success { color: var(--green); font-size: 14px; margin-bottom: 10px; }

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  width: 100%;
  max-width: 360px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
}
.login-box h1 { text-align: center; font-size: 18px; }

.picker-box { position: relative; }
.picker-results {
  position: absolute;
  z-index: 20;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 6px 6px;
  max-height: 320px;
  overflow-y: auto;
  box-shadow: 0 8px 18px rgba(0,0,0,.08);
}
.picker-item {
  padding: 8px 12px;
  cursor: pointer;
  border-bottom: 1px solid #f0f2f5;
}
.picker-item:hover { background: #eef2ff; }
.picker-item .en { color: var(--muted); font-size: 12.5px; }

.qty-input { width: 80px; }

.badge {
  display: inline-block;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #e5e7eb;
  color: #374151;
}
.badge.inactive { background: #fee2e2; color: #991b1b; }

footer.pagefoot {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 20px;
}