/* mod-matrix.css — Phase 3: Modulation matrix panel styles */

/* ============================================================
   Header Row
   ============================================================ */

.mod-matrix-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-bottom: var(--border-thin);
  font-family: var(--font-terminal);
  font-size: var(--font-size-xs);
  color: var(--crt-amber-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================================
   Column Sizing
   ============================================================ */

.mod-matrix-col-id {
  width: 24px;
  min-width: 24px;
  text-align: center;
}

.mod-matrix-col-source {
  flex: 1;
  min-width: 70px;
}

.mod-matrix-col-arrow {
  width: 20px;
  min-width: 20px;
  text-align: center;
}

.mod-matrix-col-dest {
  flex: 1;
  min-width: 100px;
}

.mod-matrix-col-amount {
  flex: 1.5;
  min-width: 100px;
}

.mod-matrix-col-toggle {
  width: 28px;
  min-width: 28px;
  text-align: center;
}

.mod-matrix-col-delete {
  width: 24px;
  min-width: 24px;
  text-align: center;
}

/* ============================================================
   Matrix Row
   ============================================================ */

.mod-matrix-row {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-bottom: var(--border-thin);
  transition: background var(--transition-fast);
}

.mod-matrix-row:hover {
  background: var(--crt-bg-panel);
}

/* ============================================================
   Row Elements
   ============================================================ */

.mod-matrix-arrow {
  color: var(--crt-amber-dim);
  font-family: var(--font-terminal);
  font-size: var(--font-size-sm);
  text-align: center;
}

.mod-matrix-fm-tag {
  font-family: var(--font-terminal);
  font-size: var(--font-size-xs);
  color: var(--crt-amber-dim);
}

/* Compact dropdown overrides inside matrix rows */
.mod-matrix-row .dropdown-select {
  font-size: var(--font-size-xs);
  padding: var(--space-1);
  min-width: 0;
  width: 100%;
}

.mod-matrix-row .dropdown-text-input {
  font-size: var(--font-size-xs);
  padding: var(--space-1);
  min-width: 0;
  width: 100%;
}

/* Compact slider overrides inside matrix rows */
.mod-matrix-row .slider-container {
  gap: var(--space-1);
}

.mod-matrix-row .slider-label {
  display: none;
}

.mod-matrix-row .slider-readout {
  font-size: var(--font-size-xs);
  min-width: 28px;
}

.mod-matrix-row .slider-track-wrap {
  height: 12px;
}

/* ============================================================
   Delete Button (hidden until hover/focus)
   ============================================================ */

.mod-matrix-delete-btn {
  font-family: var(--font-terminal);
  font-size: var(--font-size-xs);
  color: var(--crt-amber-dim);
  background: none;
  border: none;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  padding: var(--space-1);
}

.mod-matrix-row:hover .mod-matrix-delete-btn,
.mod-matrix-row:focus-within .mod-matrix-delete-btn {
  opacity: 1;
}

.mod-matrix-delete-btn:hover {
  color: var(--crt-amber-bright);
}

.mod-matrix-delete-btn:focus-visible {
  outline: 2px solid var(--crt-amber);
  outline-offset: 2px;
  opacity: 1;
}

/* ============================================================
   Footer
   ============================================================ */

.mod-matrix-footer {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2);
}

.mod-matrix-add-btn {
  font-family: var(--font-terminal);
  font-size: var(--font-size-sm);
  color: var(--crt-amber);
  background: var(--crt-bg-inset);
  border: var(--border-thin);
  padding: var(--space-1) var(--space-3);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.mod-matrix-add-btn:hover {
  color: var(--crt-amber-bright);
  border-color: var(--crt-border-bright);
}

.mod-matrix-add-btn:focus-visible {
  outline: 2px solid var(--crt-amber);
  outline-offset: 2px;
}

.mod-matrix-add-btn:disabled {
  color: var(--crt-amber-dim);
  opacity: 0.4;
  cursor: not-allowed;
}

.mod-matrix-count {
  font-family: var(--font-terminal);
  font-size: var(--font-size-xs);
  color: var(--crt-amber-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================================
   Reduced Motion
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .mod-matrix-row,
  .mod-matrix-delete-btn,
  .mod-matrix-add-btn {
    transition: none;
  }
}