/* ─── Control bar sections ──────────────────────────────────── */
.v2-filter-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 3px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: #11151d;
}
.v2-filter-tabs button {
  min-height: 32px;
  padding: 5px 7px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 720;
  white-space: nowrap;
}
.v2-filter-tabs button:hover,
.v2-filter-tabs button:focus-visible {
  color: var(--text);
  background: rgba(63, 124, 255, 0.10);
}
.v2-filter-tabs button.is-active {
  color: #f4f7fb;
  background: rgba(63, 124, 255, 0.22);
  box-shadow: inset 0 0 0 1px rgba(63, 124, 255, 0.42);
}
.v2-filter-tab-panel {
  display: none;
  gap: 8px;
}
.v2-filter-tab-panel.is-active {
  display: flex;
  flex-direction: column;
}
.v2-control-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.v2-control-section:last-child { border-bottom: 0; }

.v2-control-section h3 {
  margin: 0;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.55px;
  color: var(--text-muted);
  font-weight: 600;
}

/* ─── Collapsible filter groups ─────────────────────────────── */
.v2-control-group {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  margin: 6px 0;
}
.v2-control-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  cursor: pointer;
  user-select: none;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.005em;
  list-style: none;
}
.v2-control-group-header::-webkit-details-marker { display: none; }
.v2-control-group-header::after {
  content: "▾";
  font-size: 0.72rem;
  color: var(--text-muted);
  transition: transform 180ms ease;
  flex-shrink: 0;
}
.v2-control-group[open] > .v2-control-group-header::after {
  transform: rotate(180deg);
}
.v2-control-group-body {
  padding: 2px 12px 12px 12px;
  border-top: 1px solid var(--line);
}
.v2-control-group-body .v2-control-section {
  border-bottom: 1px solid var(--line);
}
.v2-control-group-body .v2-control-section:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.v2-control-section .v2-section-sub {
  margin: 0;
  font-size: 0.68rem;
  color: var(--text-dim);
  line-height: 1.35;
}

/* Preset row */
.v2-preset-row {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* Mechanism chip grid (10 items — 2-col grid on mobile) */
.v2-mech-chip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
@media (min-width: 640px) {
  .v2-mech-chip-grid { grid-template-columns: repeat(3, 1fr); }
}

.v2-mech-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  min-height: 36px;
  background: var(--bg-elev);
  color: var(--text-muted);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.74rem;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: background 0.12s ease, color 0.12s ease, border-color 0.12s ease;
  text-align: left;
  line-height: 1.2;
}
.v2-mech-chip:hover { color: var(--text); border-color: var(--line-strong); }
.v2-mech-chip[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent);
}

/* Color dot for mechanism chips */
.v2-mech-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Mode row (two selects side by side) */
.v2-mode-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

/* Year range */
.v2-year-range {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.v2-year-inputs {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 8px;
  align-items: center;
}
.v2-year-sep {
  color: var(--text-dim);
  text-align: center;
  font-size: 0.9rem;
}
.v2-year-input {
  background: var(--bg-elev);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 10px;
  min-height: 36px;
  font-size: 0.9rem;
  width: 100%;
  text-align: center;
}
.v2-year-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--focus-ring);
}
.v2-year-label {
  font-size: 0.74rem;
  color: var(--text-dim);
  text-align: center;
}

/* Reset and action row */
.v2-control-actions {
  padding: 14px 0 0 0;
  display: flex;
  gap: 8px;
}
/* Inline reset (sits between stance and the collapsible groups) */
.v2-control-actions--inline {
  padding: 2px 0 0 0;
}

.v2-filter-drawer-body .v2-chip {
  min-height: 34px;
  padding: 6px 10px;
}

@media (max-width: 420px) {
  .v2-filter-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Slice summary sentence */
.v2-slice-text {
  flex: 1;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}
.v2-slice-text strong { color: var(--text); }

/* Top N + layer row */
.v2-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
@media (max-width: 360px) {
  .v2-row-2col { grid-template-columns: 1fr; }
}