/* ──────────────────────────────────────────────────────────────────
   Shared element spacing controls — Phase 2
   Box-model widget, polished apply-to dropdown, mixed-state diversity,
   selection breadcrumb, coachmark, commit micro-animations.
   ────────────────────────────────────────────────────────────────── */

.pb-gss {
  display: flex;
  flex-direction: column;
  gap: var(--pb-space-3);
  margin-top: var(--pb-space-5);
  padding-top: var(--pb-space-4);
  border-top: 1px solid var(--pb-border);
}

/* ── Selection breadcrumb ── */

.pb-gss-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  margin: 0 0 var(--pb-space-2);
  padding: var(--pb-space-2) var(--pb-space-3);
  background: var(--pb-surface-soft, var(--pb-surface));
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  font-size: var(--pb-font-xs);
  color: var(--pb-text-dim);
}

.pb-gss-crumb {
  border: 0;
  background: transparent;
  color: var(--pb-text-dim);
  font: inherit;
  padding: 2px var(--pb-space-2);
  border-radius: var(--pb-radius-sm, 3px);
  cursor: pointer;
  white-space: nowrap;
  max-width: 18ch;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pb-gss-crumb:hover:not(:disabled) {
  background: var(--pb-surface-hover);
  color: var(--pb-text);
}

.pb-gss-crumb:disabled,
.pb-gss-crumb-current {
  color: var(--pb-text);
  font-weight: 600;
  cursor: default;
}

.pb-gss-crumb-sep {
  color: var(--pb-text-dim);
  opacity: 0.5;
  user-select: none;
}

/* ── Header (label + unit toggle) ── */

.pb-gss-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pb-space-3);
}

.pb-gss-header .pb-gp-label {
  margin-bottom: 0;
}

.pb-gss-unit {
  flex-shrink: 0;
}

.pb-gss-unit button {
  min-width: 34px;
  text-transform: none;
}

/* ── Apply-to scope dropdown ── */

.pb-gss-scope {
  position: relative;
}

.pb-gss-scope-button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 32px;
  padding: 0 var(--pb-space-3);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  background: var(--pb-surface);
  color: var(--pb-text);
  font: inherit;
  font-size: var(--pb-font-sm);
  cursor: pointer;
  transition: border-color var(--pb-transition);
}

.pb-gss-scope-button:hover,
.pb-gss-scope-button[aria-expanded="true"] {
  border-color: var(--pb-accent);
}

.pb-gss-scope-button-chevron {
  font-size: 10px;
  color: var(--pb-text-dim);
  margin-left: var(--pb-space-2);
}

.pb-gss-scope-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  z-index: 12;
  display: flex;
  flex-direction: column;
  background: var(--pb-surface);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  box-shadow: var(--pb-shadow-dropdown);
  overflow: hidden;
}

.pb-gss-scope-menu[hidden] {
  display: none;
}

.pb-gss-scope-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pb-space-3);
  padding: var(--pb-space-2) var(--pb-space-3);
  border: 0;
  background: transparent;
  color: var(--pb-text);
  font: inherit;
  font-size: var(--pb-font-sm);
  text-align: left;
  cursor: pointer;
}

.pb-gss-scope-item:hover:not(:disabled),
.pb-gss-scope-item:focus-visible:not(:disabled) {
  background: var(--pb-surface-hover);
}

.pb-gss-scope-item-active {
  color: var(--pb-accent);
  font-weight: 600;
}

.pb-gss-scope-item-disabled {
  color: var(--pb-text-dim);
  cursor: not-allowed;
}

.pb-gss-scope-item-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 18px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--pb-surface-hover);
  color: var(--pb-text-dim);
  font-size: 10px;
  font-weight: 700;
}

.pb-gss-scope-item-active .pb-gss-scope-item-count {
  background: var(--pb-accent);
  color: var(--pb-surface);
}

.pb-gss-scope-item-disabled .pb-gss-scope-item-count {
  opacity: 0.5;
}

/* ── Diversity readout ── */

.pb-gss-diversity {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--pb-space-2) var(--pb-space-3);
  border: 1px dashed var(--pb-border);
  border-radius: var(--pb-radius);
  background: var(--pb-surface-soft, var(--pb-surface));
  font-size: 11px;
  color: var(--pb-text-dim);
}

.pb-gss-diversity[hidden] {
  display: none;
}

.pb-gss-diversity-row {
  display: flex;
  justify-content: space-between;
  gap: var(--pb-space-2);
}

.pb-gss-diversity-label {
  font-weight: 600;
}

.pb-gss-diversity-value {
  font-feature-settings: 'tnum' 1;
}

/* ── Box-model widget host ── */

.pb-gss-widget-host {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  padding: var(--pb-space-2);
  background: var(--pb-surface-soft, var(--pb-surface));
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius-lg, 8px);
}

/* ── Footer (reset all) ── */

.pb-gss-footer {
  display: flex;
  justify-content: flex-end;
}

.pb-gss-reset-all {
  border: 0;
  background: transparent;
  color: var(--pb-text-dim);
  cursor: pointer;
  font: inherit;
  font-size: var(--pb-font-xs);
  font-weight: 700;
  padding: var(--pb-space-2) var(--pb-space-3);
  border-radius: var(--pb-radius);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pb-gss-reset-all:hover {
  color: var(--pb-accent);
  background: var(--pb-surface-hover);
}

/* ── First-session coachmark ── */

.pb-gss-coachmark {
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--pb-text);
  color: var(--pb-surface);
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
  z-index: 4;
  pointer-events: auto;
  animation: pb-gss-coachmark-in 220ms ease-out;
}

.pb-gss-coachmark::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid var(--pb-text);
}

.pb-gss-coachmark-dismiss {
  border: 0;
  background: transparent;
  color: var(--pb-surface);
  font-size: 12px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  opacity: 0.7;
}

.pb-gss-coachmark-dismiss:hover {
  opacity: 1;
}

.pb-gss-coachmark-dismiss-anim {
  animation: pb-gss-coachmark-out 200ms ease-in forwards;
}

@keyframes pb-gss-coachmark-in {
  from { opacity: 0; transform: translateX(-50%) translateY(calc(-50% + 6px)); }
  to   { opacity: 1; transform: translateX(-50%) translateY(-50%); }
}

@keyframes pb-gss-coachmark-out {
  to { opacity: 0; transform: translateX(-50%) translateY(calc(-50% - 6px)); }
}

/* ──────────────────────────────────────────────────────────────────
   Box-model widget (SVG)
   ────────────────────────────────────────────────────────────────── */

.pb-bmw {
  position: relative;
  width: 100%;
}

.pb-bmw:focus {
  outline: none;
}

.pb-bmw-svg {
  width: 100%;
  height: auto;
  display: block;
  user-select: none;
}

.pb-bmw-rect {
  fill: var(--pb-surface);
  stroke: var(--pb-border);
  stroke-width: 1;
}

.pb-bmw-rect-margin {
  fill: rgba(252, 187, 105, 0.12);
  stroke: rgba(252, 187, 105, 0.45);
}

.pb-bmw-rect-padding {
  fill: rgba(120, 188, 120, 0.16);
  stroke: rgba(120, 188, 120, 0.55);
}

.pb-bmw-rect-inner {
  fill: var(--pb-surface);
  stroke: var(--pb-border);
}

.pb-bmw-caption {
  font-family: inherit;
  font-size: 8.5px;
  font-weight: 700;
  fill: rgba(80, 80, 80, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  pointer-events: none;
  user-select: none;
}

.pb-bmw-caption-padding {
  fill: rgba(60, 110, 60, 0.7);
}

/* Side hit zones — invisible by default, highlight on hover/focus */

.pb-bmw-zone {
  fill: transparent;
  cursor: ns-resize;
  transition: fill 120ms ease;
}

.pb-bmw-zone[data-field="paddingLeft"],
.pb-bmw-zone[data-field="paddingRight"],
.pb-bmw-zone[data-field="marginLeft"],
.pb-bmw-zone[data-field="marginRight"] {
  cursor: ew-resize;
}

.pb-bmw-zone:hover {
  fill: rgba(56, 152, 236, 0.1);
}

.pb-bmw-zone-focus {
  fill: rgba(56, 152, 236, 0.18);
}

/* Value labels (foreignObject + HTML) */

.pb-bmw-label-fo {
  overflow: visible;
}

.pb-bmw-label {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 11px;
  font-weight: 600;
  font-family: inherit;
  color: var(--pb-text);
  background: transparent;
  border-radius: 4px;
  cursor: ns-resize;
  user-select: none;
  position: relative;
  transition: background-color 140ms ease, color 140ms ease, transform 180ms cubic-bezier(.34,1.56,.64,1);
  font-feature-settings: 'tnum' 1;
}

.pb-bmw-label-paddingLeft,
.pb-bmw-label-paddingRight,
.pb-bmw-label-marginLeft,
.pb-bmw-label-marginRight {
  cursor: ew-resize;
}

.pb-bmw-label:hover {
  background: rgba(56, 152, 236, 0.12);
  color: var(--pb-accent);
}

.pb-bmw-label-focus {
  background: rgba(56, 152, 236, 0.18);
  color: var(--pb-accent);
  box-shadow: 0 0 0 1.5px var(--pb-accent);
}

.pb-bmw-label-focus:focus {
  outline: none;
}

.pb-bmw-label.pb-bmw-mixed {
  color: var(--pb-accent);
  font-style: italic;
  letter-spacing: 0.02em;
}

.pb-bmw-label.pb-bmw-auto {
  color: var(--pb-text-dim);
  font-style: italic;
}

.pb-bmw-label.pb-bmw-template::before {
  content: '~';
  margin-right: 1px;
  color: var(--pb-text-dim);
}

.pb-bmw-label.pb-bmw-zero {
  color: var(--pb-text-dim);
  opacity: 0.6;
}

.pb-bmw-label.pb-bmw-negative {
  color: #d2453a;
}

.pb-bmw-label.pb-bmw-snap-pulse {
  animation: pb-bmw-snap 220ms cubic-bezier(.34,1.56,.64,1);
}

.pb-bmw-label.pb-bmw-clamp-reject {
  animation: pb-bmw-clamp-reject 320ms ease;
}

@keyframes pb-bmw-snap {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.18); background: rgba(56, 152, 236, 0.28); }
  100% { transform: scale(1); }
}

@keyframes pb-bmw-clamp-reject {
  0%   { background: rgba(210, 69, 58, 0); }
  30%  { background: rgba(210, 69, 58, 0.28); }
  100% { background: rgba(210, 69, 58, 0); }
}

/* Inline edit input */

.pb-bmw-input {
  width: 100%;
  height: 100%;
  border: 0;
  outline: none;
  background: var(--pb-surface);
  color: var(--pb-text);
  font: inherit;
  font-size: 11px;
  font-weight: 600;
  text-align: center;
  border-radius: 3px;
  box-shadow: 0 0 0 2px var(--pb-accent);
}

/* Lock buttons (pair + center "lock all 4") */

.pb-bmw-locks {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.pb-bmw-lock {
  position: absolute;
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  padding: 0;
  border: 1px solid var(--pb-border);
  border-radius: 50%;
  background: var(--pb-surface);
  color: var(--pb-text-dim);
  cursor: pointer;
  transition: color 140ms ease, border-color 140ms ease, background 140ms ease;
}

.pb-bmw-lock:hover {
  color: var(--pb-accent);
  border-color: var(--pb-accent);
}

.pb-bmw-lock svg {
  transform-origin: center;
  transition: transform 140ms ease;
}

.pb-bmw-lock:hover svg {
  transform: scale(1.05);
}

.pb-bmw-lock-active {
  color: var(--pb-accent);
  border-color: var(--pb-accent);
  background: rgba(56, 152, 236, 0.15);
}

.pb-bmw-lock-inherited {
  opacity: 0.55;
}

/* Pair lock positions (relative to the box-model SVG which is sized via aspect-ratio
   and laid out at percentages; the locks pin to specific edges) */

.pb-bmw-lock-paddingY  { top: 26%; left: 50%; transform: translate(-50%, -50%); }
.pb-bmw-lock-paddingX  { top: 50%; right: 30%; transform: translate(50%, -50%); }
.pb-bmw-lock-marginY   { top: 8%;  left: 50%; transform: translate(-50%, -50%); }
.pb-bmw-lock-marginX   { top: 50%; right: 4%; transform: translate(50%, -50%); }

.pb-bmw-lock-all-padding { top: 50%; left: 50%; transform: translate(-50%, -50%); width: 22px; height: 22px; }
.pb-bmw-lock-all-margin  { top: 8%;  right: 4%; transform: translate(0, 0); width: 22px; height: 22px; }