:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #6b7280;
  --accent: #ffe600;
  --accent-dark: #333333;
  --border: #e5e7eb;
}

* { box-sizing: border-box; }

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

header {
  background: var(--accent-dark);
  color: #fff;
  padding: 24px 20px;
  text-align: center;
}

header h1 {
  margin: 0;
  color: var(--accent);
  letter-spacing: 0.5px;
}

.subtitle {
  margin: 6px 0 0;
  color: #d1d5db;
  font-size: 14px;
}

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

#search-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

#search-form input,
#search-form select {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
}

#search-form input {
  flex: 1;
  min-width: 220px;
}

#search-form button {
  background: var(--accent);
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-weight: 600;
  cursor: pointer;
}

#search-form button:hover {
  filter: brightness(0.95);
}

.status {
  min-height: 20px;
  color: var(--muted);
  font-size: 14px;
}

.status.error {
  color: #b91c1c;
}

.hidden {
  display: none;
}

.meta {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 16px;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  margin-top: -4px;
}

.columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 800px) {
  .columns {
    grid-template-columns: 1fr;
  }
}

.col {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
}

h2 {
  font-size: 16px;
  margin-top: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 8px 6px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
}

a.product-link {
  color: #2563eb;
  text-decoration: none;
}

a.product-link:hover {
  text-decoration: underline;
}

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