/* Options Chain — research-led desk layout */

.options-chain-page .oc-toolbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.options-chain-page .oc-expiry-strip {
  display: flex;
  gap: 0.35rem;
  overflow-x: auto;
  max-width: 100%;
  padding-bottom: 2px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.options-chain-page .oc-expiry-strip::-webkit-scrollbar {
  height: 4px;
}

.options-chain-page .oc-expiry-chip {
  flex-shrink: 0;
}

.options-chain-page .oc-suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: stretch;
}

.options-chain-page .oc-suggestion-chip {
  cursor: pointer;
  border: 1px solid var(--mud-palette-lines-default);
  border-radius: 8px;
  padding: 8px 12px;
  background: var(--mud-palette-surface);
  max-width: 280px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.options-chain-page .oc-suggestion-chip:hover {
  border-color: var(--mud-palette-primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.options-chain-page .oc-suggestion-chip.active {
  border-color: var(--mud-palette-primary);
  background: color-mix(in srgb, var(--mud-palette-primary) 8%, transparent);
}

.options-chain-page .oc-chain-wrap {
  overflow: auto;
  max-height: min(70vh, 820px);
  border-radius: 6px;
  border: 1px solid var(--mud-palette-lines-default);
}

.options-chain-page .oc-chain-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.82rem;
}

.options-chain-page .oc-chain-table thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--mud-palette-surface);
  border-bottom: 2px solid var(--mud-palette-lines-default);
  padding: 6px 8px;
  white-space: nowrap;
  font-weight: 700;
}

.options-chain-page .oc-chain-table thead th.oc-strike-col {
  z-index: 4;
  text-align: center;
  background: var(--mud-palette-background-grey);
}

.options-chain-page .oc-chain-table tbody td {
  padding: 4px 8px;
  white-space: nowrap;
  border-bottom: 1px solid var(--mud-palette-table-lines);
  cursor: pointer;
}

.options-chain-page .oc-chain-table tbody td.oc-strike-col {
  position: sticky;
  left: 0;
  z-index: 2;
  text-align: center;
  font-weight: 700;
  background: var(--mud-palette-background-grey);
  cursor: default;
}

.options-chain-page .oc-chain-table tbody tr:hover td {
  background: var(--mud-palette-action-hover);
}

.options-chain-page .oc-chain-table tbody tr:hover td.oc-strike-col {
  background: color-mix(in srgb, var(--mud-palette-action-hover) 70%, var(--mud-palette-background-grey));
}

.options-chain-page .oc-chain-table tbody tr.oc-atm td {
  box-shadow: inset 0 2px 0 0 var(--mud-palette-primary), inset 0 -2px 0 0 var(--mud-palette-primary);
}

.options-chain-page .oc-chain-table tbody tr.oc-atm td.oc-strike-col {
  background: color-mix(in srgb, var(--mud-palette-primary) 18%, var(--mud-palette-background-grey));
  color: var(--mud-palette-primary);
}

.options-chain-page .oc-chain-table tbody tr.oc-highlight td {
  background: color-mix(in srgb, var(--mud-palette-info) 14%, transparent);
}

.options-chain-page .oc-chain-table .oc-call {
  color: var(--mud-palette-success);
  text-align: right;
}

.options-chain-page .oc-chain-table .oc-put {
  color: var(--mud-palette-error);
  text-align: left;
}

.options-chain-page .oc-chain-table .oc-muted {
  color: var(--mud-palette-text-secondary);
}

.options-chain-page .oc-itm-call {
  background: color-mix(in srgb, var(--mud-palette-success) 7%, transparent);
}

.options-chain-page .oc-itm-put {
  background: color-mix(in srgb, var(--mud-palette-error) 7%, transparent);
}

.options-chain-page .oc-group-labels {
  display: flex;
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.options-chain-page .oc-group-labels .oc-calls {
  flex: 1;
  text-align: center;
  color: var(--mud-palette-success);
  border-bottom: 2px solid var(--mud-palette-success);
  padding-bottom: 2px;
}

.options-chain-page .oc-group-labels .oc-puts {
  flex: 1;
  text-align: center;
  color: var(--mud-palette-error);
  border-bottom: 2px solid var(--mud-palette-error);
  padding-bottom: 2px;
}

.options-chain-page .oc-mobile-card.oc-atm {
  border: 2px solid var(--mud-palette-primary) !important;
}

.options-chain-page .oc-mobile-card.oc-highlight {
  box-shadow: 0 0 0 2px var(--mud-palette-info);
}

.options-chain-page .oc-research-collapsed-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  cursor: pointer;
}