.tool-shell {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.25rem 1.35rem 1.5rem;
  box-shadow: 0 10px 30px rgba(30, 27, 75, 0.06);
  margin: 1.25rem 0 1.75rem;
}
.tool-shell h2 { margin-top: 0; }
.tool-banner {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.92rem;
  margin-bottom: 1rem;
}
.classifier-controls {
  display: grid;
  gap: 0.85rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .classifier-controls { grid-template-columns: 1.4fr 1fr auto; align-items: end; }
}
.classifier-controls label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-2);
}
.classifier-controls input[type="search"],
.classifier-controls select {
  font: inherit;
  padding: 0.65rem 0.75rem;
  border-radius: 0.65rem;
  border: 1px solid var(--border);
  background: var(--cream);
}
.check-row {
  display: flex !important;
  flex-direction: row !important;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.35rem;
  font-weight: 500 !important;
}
#tool-status {
  margin: 0.85rem 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}
.results-grid { display: grid; gap: 1rem; margin-top: 1rem; }
.result-card {
  border: 1px solid var(--border);
  border-radius: 0.9rem;
  padding: 1rem 1.1rem;
  background: linear-gradient(180deg, #fff, var(--cream));
}
.result-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
}
.result-head h3 { margin: 0; font-size: 1.15rem; }
.badges { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.badge {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
}
.badge-peptide { background: #eef2ff; color: var(--indigo-700); border-color: var(--indigo-100); }
.badge-not { background: #fff1f2; color: #9f1239; border-color: #fecdd3; }
.badge-class { background: #fff; color: var(--ink-2); }
.aliases, .class-line, .tax-note { font-size: 0.92rem; color: var(--muted); margin: 0.35rem 0; }
.not-notes { margin: 0.4rem 0 0.6rem; padding-left: 1.1rem; color: var(--ink-2); font-size: 0.92rem; }
.result-links { margin: 0.5rem 0 0; font-size: 0.9rem; }
.empty { color: var(--muted); font-size: 0.95rem; }
.class-legend {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0 1.5rem;
}
.class-legend div {
  border-left: 3px solid var(--indigo-700);
  padding-left: 0.75rem;
  font-size: 0.92rem;
}
.class-legend strong { color: var(--ink); }