:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c1f26;
  --muted: #6b7280;
  --border: #e4e6ea;
  --accent: #2f6f4f;
  --accent-dark: #24593f;
  --danger: #b3261e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 16px 64px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

h1, h2, h3 { margin-top: 0; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.topbar nav a {
  margin-right: 16px;
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
}

.topbar nav a:hover { color: var(--accent); }

form.stacked label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin: 12px 0 4px;
}

input, select, textarea, button {
  font: inherit;
}

input[type=text], input[type=email], input[type=password], input[type=number], input[type=url], textarea, select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

button, .btn {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
}

button:hover, .btn:hover { background: var(--accent-dark); }

button.secondary { background: var(--border); color: var(--text); }
button.danger { background: var(--danger); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--border);
}
.badge.success { background: #dff5e6; color: #1a7a3d; }
.badge.failure { background: #fbe2e0; color: var(--danger); }

.item-row { display: flex; gap: 8px; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.item-row input { flex: 1; min-width: 100px; }
.item-row .price-input { max-width: 100px; }
.item-row .img-input { flex: 1; min-width: 100px; }
.item-row .img-cell { display: flex; align-items: center; gap: 6px; flex-basis: 260px; flex-grow: 1; }

.thumb-preview {
  width: 32px; height: 32px; border-radius: 6px; object-fit: cover;
  flex: 0 0 auto; border: 1px solid var(--border); background: #f2f3f5;
}

.gallery-panel {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding: 10px; margin-bottom: 4px;
  background: #f9fafb; border: 1px solid var(--border); border-radius: 8px;
}
.gallery-thumb {
  width: 64px; height: 64px; object-fit: cover; border-radius: 6px;
  cursor: pointer; border: 2px solid transparent;
}
.gallery-thumb:hover { border-color: var(--accent); }

.muted { color: var(--muted); font-size: 13px; }
.error { color: var(--danger); font-size: 13px; margin-top: 8px; }
.qr-preview { width: 200px; height: 200px; border: 1px solid var(--border); border-radius: 8px; }