/* ==========================================================================
   Control area — sections 9, 15
   ========================================================================== */

.beta-control {
  position: relative;
  z-index: 1;
  background: var(--beta-bg);
  border-top: 1px solid var(--beta-fg);
  padding: 64px var(--beta-edge) 96px;
}

.beta-control-head {
  max-width: 640px;
  margin: 0 0 40px;
}

.beta-control-title {
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}

.beta-control-desc {
  font-size: 14px;
  color: var(--beta-fg-muted);
  margin-bottom: 20px;
}

.beta-control-search {
  display: block;
  width: 100%;
  max-width: 360px;
  font-family: var(--beta-font-mono);
  font-size: 12px;
  padding: 10px 12px;
  border: 1px solid var(--beta-fg);
  background: var(--beta-bg);
  color: var(--beta-fg);
  margin-bottom: 20px;
}

.beta-control-search::placeholder {
  color: var(--beta-fg-faint);
}

.beta-control-actions {
  display: flex;
  gap: 10px;
}

.beta-btn {
  font-family: var(--beta-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 9px 16px;
  border: 1px solid var(--beta-fg);
  transition: color 150ms var(--beta-ease), background-color 150ms var(--beta-ease);
}

.beta-btn:hover,
.beta-btn:focus-visible {
  color: var(--beta-bg);
  background: var(--beta-fg);
}

.beta-control-groups {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.beta-category-group {
  border: 1px solid var(--beta-line);
}

.beta-category-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--beta-font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 12px 16px;
  border-bottom: 1px solid var(--beta-line);
  background: var(--beta-bg-hover, #f5f5f5);
}

.beta-category-count {
  font-size: 11px;
  font-weight: 400;
  color: var(--beta-fg-faint);
}

.beta-category-items {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1px;
  background: var(--beta-line);
}

.beta-exp-item {
  background: var(--beta-bg);
  padding: 16px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 84px;
  transition: background-color 150ms var(--beta-ease);
}

.beta-exp-item:hover,
.beta-exp-item:focus-visible {
  background: var(--beta-bg-hover, #f5f5f5);
}

.beta-exp-name {
  font-family: var(--beta-font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.beta-exp-desc {
  font-size: 11px;
  color: var(--beta-fg-faint);
}

.beta-category-empty {
  font-size: 13px;
  color: var(--beta-fg-muted);
  padding: 24px 0;
}

/* ==========================================================================
   Windows — section 10
   ========================================================================== */

.beta-windows-layer {
  position: fixed;
  inset: 0;
  z-index: 500;
  pointer-events: none;
}

.beta-window {
  position: absolute;
  display: flex;
  flex-direction: column;
  width: 320px;
  min-width: 220px;
  min-height: 140px;
  background: var(--beta-bg);
  border: 1px solid var(--beta-fg);
  pointer-events: auto;
}

.beta-window-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 10px;
  border-bottom: 1px solid var(--beta-fg);
  background: var(--beta-bg);
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.beta-window.beta-is-dragging .beta-window-titlebar {
  cursor: grabbing;
}

.beta-window-title {
  font-family: var(--beta-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.beta-window-controls {
  display: flex;
  gap: 4px;
  flex: none;
}

.beta-window-btn {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--beta-fg-muted);
  font-size: 12px;
  line-height: 1;
  transition: color 150ms var(--beta-ease), border-color 150ms var(--beta-ease);
}

.beta-window-btn:hover,
.beta-window-btn:focus-visible {
  color: var(--beta-accent);
  border-color: var(--beta-accent);
}

.beta-window-content {
  flex: 1;
  overflow: auto;
  padding: 14px;
  font-size: 13px;
}

/* Shown briefly while window-manager.js fetches an experiment's script
   on demand (js/registry.js's loadExperiment()) — replaced by the
   experiment's own UI once launch() runs. */
.beta-window-loading {
  color: var(--beta-fg-faint);
  font-family: var(--beta-font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.beta-window-resize {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 14px;
  height: 14px;
  cursor: nwse-resize;
  background:
    linear-gradient(135deg, transparent 45%, var(--beta-fg-muted) 45%, var(--beta-fg-muted) 55%, transparent 55%),
    linear-gradient(135deg, transparent 65%, var(--beta-fg-muted) 65%, var(--beta-fg-muted) 75%, transparent 75%);
}

.beta-window.beta-is-minimized .beta-window-content,
.beta-window.beta-is-minimized .beta-window-resize {
  display: none;
}

.beta-window.beta-is-minimized {
  height: auto !important;
}

.beta-window.beta-is-maximized {
  left: var(--beta-edge) !important;
  top: 64px !important;
  width: calc(100% - (var(--beta-edge) * 2)) !important;
  height: calc(100% - 96px) !important;
}

.beta-window.beta-is-hidden {
  display: none;
}

/* ==========================================================================
   Taskbar — minimized-window chips
   ========================================================================== */

.beta-taskbar {
  position: fixed;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  z-index: 600;
  display: flex;
  gap: 6px;
}

.beta-taskbar-chip {
  font-family: var(--beta-font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 10px;
  border: 1px solid var(--beta-fg);
  background: var(--beta-bg);
}

.beta-taskbar-chip:hover {
  color: var(--beta-accent);
  border-color: var(--beta-accent);
}

/* ==========================================================================
   Command palette — section 13
   ========================================================================== */

.beta-command-palette {
  position: fixed;
  left: 50%;
  top: 18vh;
  transform: translateX(-50%);
  z-index: 900;
  width: min(90vw, 460px);
  background: var(--beta-bg);
  border: 1px solid var(--beta-fg);
}

.beta-command-input {
  width: 100%;
  padding: 14px 16px;
  border: none;
  border-bottom: 1px solid var(--beta-fg);
  font-family: var(--beta-font-mono);
  font-size: 13px;
  color: var(--beta-fg);
  background: var(--beta-bg);
}

.beta-command-input:focus-visible {
  outline: none;
}

.beta-command-list {
  max-height: 320px;
  overflow-y: auto;
}

.beta-command-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 16px;
  font-family: var(--beta-font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--beta-line);
}

.beta-command-item:last-child {
  border-bottom: none;
}

.beta-command-item.beta-is-active {
  background: var(--beta-fg);
  color: var(--beta-bg);
}