.cost-panel {
  background: var(--bg-white);
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  margin-bottom: 1.5rem;
}

.cost-panel h2 {
  font-size: 1.25rem;
  margin-bottom: 0.35rem;
}

.cost-panel-desc,
.cost-meta,
.cost-empty {
  color: #888;
  font-size: 0.85rem;
}

.cost-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 1rem 0;
}

.cost-range-btn,
.cost-btn-small {
  padding: 0.4rem 0.9rem;
  border: 2px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-white);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.cost-range-btn.active {
  background: var(--primary-red);
  border-color: transparent;
  color: #fff;
}

.cost-period {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 700;
}

.cost-period input {
  border: 2px solid var(--border-color);
  border-radius: 10px;
  padding: 0.35rem 0.5rem;
  font: inherit;
}

.cost-btn-small {
  padding: 0.25rem 0.7rem;
  font-size: 0.8rem;
}

.cost-btn-danger {
  color: #d32f2f;
}

.cost-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.cost-card {
  background: var(--beige);
  border: 1px solid var(--beige-dark);
  border-radius: 14px;
  padding: 0.85rem 1rem;
}

.cost-card-label {
  font-size: 0.8rem;
  color: #888;
  font-weight: 700;
}

.cost-card-value {
  font-size: 1.5rem;
  font-weight: 800;
}

.cost-card-sub {
  font-size: 0.75rem;
  color: #888;
}

.cost-meta {
  margin-bottom: 0.75rem;
}

.cost-chart {
  width: 100%;
  height: auto;
  display: block;
}

.cost-grid {
  stroke: #eee;
  stroke-width: 1;
}

.cost-axis {
  font-size: 11px;
  fill: #888;
}

.cost-hover {
  fill: transparent;
}

.cost-hover:hover {
  fill: rgba(0, 0, 0, 0.04);
}

.cost-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  font-size: 0.82rem;
  margin: 0.5rem 0 1.25rem;
}

.cost-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.cost-swatch {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  display: inline-block;
}

.cost-subhead {
  font-size: 1.05rem;
  margin: 0.5rem 0;
}

.cost-table td,
.cost-table th {
  font-size: 0.85rem;
}

.cost-num {
  text-align: right;
  white-space: nowrap;
}

.cost-actions {
  white-space: nowrap;
  text-align: right;
}

.cost-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.6rem;
  align-items: end;
  margin-top: 1rem;
  padding: 1rem;
  border: 1px dashed var(--border-color);
  border-radius: 14px;
}

.cost-form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8rem;
  font-weight: 700;
}

.cost-form input,
.cost-form select {
  padding: 0.5rem 0.6rem;
  border: 2px solid var(--border-color);
  border-radius: 10px;
  font: inherit;
  font-size: 0.9rem;
  background: #fff;
}

.cost-form-actions {
  display: flex;
  gap: 0.5rem;
}

.cost-form-actions button {
  padding: 0.55rem 1rem;
  border-radius: 10px;
  border: none;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  background: var(--accent-green);
  color: #fff;
}

.cost-form-actions button[type="button"] {
  background: #eee;
  color: var(--text-dark);
}