:root {
  --bg: #f8f9fa;
  --text: #212529;
  --green: #22c55e;
  --yellow: #facc15;
  --blue: #60a5fa;
  --accent: #3b82f6;
}

body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
}

nav {
  background: white;
  padding: 1rem 2rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  display: flex;
  gap: 2rem;
}

nav a {
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
}

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

.container {
  max-width: 800px;
  margin: 2rem auto;
  padding: 1rem;
  background: white;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid #dee2e6;
}

.tag {
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.85rem;
  color: white;
  display: inline-block;
}

.undetected {
  background: var(--green);
}

.testing {
  background: var(--yellow);
  color: #000;
}

.frozen {
  background: var(--blue);
}

.product {
  margin-bottom: 1rem;
  border: 1px solid #ddd;
  border-radius: 6px;
}

.product-header {
  background: #f1f3f5;
  padding: 1rem;
  cursor: pointer;
  font-weight: bold;
  display: flex;
  justify-content: space-between;
}

.product-sellers {
  display: none;
  padding: 1rem;
  border-top: 1px solid #ddd;
}

.product-sellers a {
  display: inline-block;
  margin-top: 0.25rem;
  color: var(--accent);
  text-decoration: none;
}