:root {
  --primary: #1e3a8a;
  --primary-light: #2563eb;
  --accent: #d97706;
  --bg-light: #eff6ff;
  --text-dark: #0f172a;
  --text-muted: #475569;
  --border: #cbd5e1;
  --border-strong: #0f172a;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text-dark);
  background: #ffffff;
  line-height: 1.5;
}
a { color: inherit; text-decoration: none; }
.top-notice {
  background: #0f172a;
  color: #f8fafc;
  font-size: 12px;
  padding: 8px 16px;
  border-bottom: 2px solid var(--accent);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}
.header-bar {
  background: #ffffff;
  border-bottom: 2px solid var(--border-strong);
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
}
.logo-title {
  font-size: 20px;
  font-weight: 900;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-links {
  display: flex;
  gap: 20px;
  font-size: 14px;
  font-weight: 700;
}
.nav-links a:hover { color: var(--primary-light); text-decoration: underline; }
.container {
  max-width: 1280px;
  margin: 20px auto;
  padding: 0 20px;
}
.info-banner {
  background: var(--bg-light);
  border: 1px solid #93c5fd;
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 24px;
}
.info-banner h2 { font-size: 16px; font-weight: 800; color: var(--primary); margin-bottom: 6px; }
.info-banner p { font-size: 13px; color: var(--text-muted); }
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0 32px 0;
  border: 1px solid var(--border);
  font-size: 13px;
}
.data-table th {
  background: #f1f5f9;
  color: #1e293b;
  font-weight: 800;
  text-align: left;
  padding: 10px 14px;
  border-bottom: 2px solid var(--border);
}
.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tr:hover { background: #f8fafc; }
.badge-grade {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 11px;
}
.badge-stock {
  display: inline-block;
  background: #dbeafe;
  color: #1e40af;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 11px;
}
.footer-bar {
  background: #0f172a;
  color: #94a3b8;
  padding: 30px 20px;
  font-size: 12px;
  margin-top: 40px;
  border-top: 3px solid var(--primary-light);
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}