/**
 * DOCK LAYOUT SYSTEM
 * N/E/S/W edge docks + 3x3 center grid
 * Transparent overlay on fullscreen 3D canvas
 */

/* ─── LAYOUT SHELL ─── */
#dock-layout {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  pointer-events: none;
  overflow: hidden;
}

#dock-layout > *,
#dock-layout * {
  pointer-events: auto;
}

/* ─── DOCK COMMON ─── */
.dock {
  flex-shrink: 0;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: rgba(139, 92, 246, 0.25);
  border-style: solid;
  border-width: 0;
}

.dock-content {
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 0;
}

/* ─── HORIZONTAL DOCKS (N/S) ─── */
.dock-h {
  width: 100%;
}

.dock-h .dock-content {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
}

#dock-north {
  border-bottom-width: 1px;
}

#dock-south {
  border-top-width: 1px;
}

/* ─── VERTICAL DOCKS (E/W) ─── */
.dock-v {
  width: auto;
  min-width: 60px;
  max-width: 280px;
  overflow-y: auto;
  overflow-x: hidden;
}

.dock-v .dock-content {
  flex-direction: column;
  align-items: stretch;
  padding: 0.75rem 0.5rem;
  height: 100%;
}

#dock-west {
  border-right-width: 1px;
}

#dock-east {
  border-left-width: 1px;
}

/* ─── CENTER ROW (W | BODY | E) ─── */
#dock-center-row {
  flex: 1;
  display: flex;
  min-height: 0;
}

/* ─── CENTER BODY — 3x3 GRID ─── */
#dock-body {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 0.75rem;
  padding: 0.75rem;
  overflow: auto;
  pointer-events: none;
}

/* ─── GRID CELLS ─── */
.grid-cell {
  background: rgba(10, 10, 26, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(139, 92, 246, 0.15);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  pointer-events: auto;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.grid-cell:hover {
  border-color: rgba(139, 92, 246, 0.45);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.1);
}

/* Cell with content */
.grid-cell:not(:empty) {
  background: rgba(10, 10, 26, 0.85);
}

/* Empty cell — show as subtle placeholder */
.grid-cell:empty {
  background: rgba(10, 10, 26, 0.25);
  border-style: dashed;
  border-color: rgba(139, 92, 246, 0.1);
}

/* ─── CARD TEMPLATE ─── */
.dock-card {
  padding: 1rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.dock-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.dock-card-header h3 {
  margin: 0;
  font-size: 0.95rem;
  color: var(--brain, #8b5cf6);
}

.dock-card-header .card-icon {
  font-size: 1.2rem;
}

.dock-card-body {
  flex: 1;
  overflow: auto;
  font-size: 0.85rem;
  color: var(--text-light, #9ca3af);
  line-height: 1.5;
}

.dock-card-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(139, 92, 246, 0.15);
}

/* ─── SPAN CELLS ─── */
.grid-cell[data-span="2x1"] { grid-column: span 2; }
.grid-cell[data-span="3x1"] { grid-column: span 3; }
.grid-cell[data-span="1x2"] { grid-row: span 2; }
.grid-cell[data-span="1x3"] { grid-row: span 3; }
.grid-cell[data-span="2x2"] { grid-column: span 2; grid-row: span 2; }
.grid-cell[data-span="3x2"] { grid-column: span 3; grid-row: span 2; }
.grid-cell[data-span="2x3"] { grid-column: span 2; grid-row: span 3; }
.grid-cell[data-span="3x3"] { grid-column: span 3; grid-row: span 3; }

/* ─── DOCK COLLAPSED STATES ─── */
.dock.collapsed .dock-content {
  display: none;
}

#dock-north.collapsed { min-height: 4px; }
#dock-south.collapsed { min-height: 4px; }
#dock-west.collapsed  { min-width: 4px; max-width: 4px; }
#dock-east.collapsed  { min-width: 4px; max-width: 4px; }

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  #dock-body {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
  }

  .dock-v {
    max-width: 200px;
  }
}

@media (max-width: 640px) {
  #dock-center-row {
    flex-direction: column;
  }

  .dock-v {
    width: 100%;
    max-width: 100%;
    min-width: auto;
    border-width: 0;
  }

  #dock-west { border-bottom-width: 1px; }
  #dock-east { border-top-width: 1px; }

  .dock-v .dock-content {
    flex-direction: row;
    flex-wrap: wrap;
    height: auto;
    padding: 0.5rem 1rem;
  }

  #dock-body {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }

  .grid-cell[data-span] {
    grid-column: span 1;
    grid-row: span 1;
  }
}