/* QUANTUM LABS — Examples Page */

/* Example Tabs */
.examples-tabs {
  display: flex;
  align-items: flex-end;
  gap: var(--sp-1);
  margin-top: var(--sp-8);
  margin-bottom: var(--sp-6);
  padding-left: var(--sp-4);
  border-bottom: 1px solid var(--wire);
}

.examples-tab-btn {
  position: relative;
  z-index: var(--z-top);
  display: flex;
  align-items: center;
  background: none;
  color: var(--ash);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  padding: 0 var(--sp-4) var(--sp-2) var(--sp-4);
  cursor: pointer;
  border: 1px solid transparent;
  border-bottom: none;
  border-top-left-radius: var(--radius-md);
  border-top-right-radius: var(--radius-md);
  transition: all var(--duration-fast) var(--ease-out);
  height: 40px;
  margin-bottom: -1px;
}

.examples-tab-btn:hover {
  color: var(--bone);
}

.examples-tab-btn.active {
  font-weight: 700;
  color: var(--ember);
  background: var(--obsidian);
  border-color: var(--wire);
}

.examples-tab-btn.active::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background: var(--obsidian);
  content: '';
}

/* Example Matrix Preview */
.example-matrix-preview {
  position: relative;
  z-index: var(--z-elevated);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 16px;
  transform: scale(0.7);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--bone);
  white-space: pre;
  text-align: center;
}

.example-card-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 120px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--smoke);
  background: var(--graphite);
  overflow: hidden;
}

/* Example Card Visual */
.example-card-visual::after {
  position: absolute;
  background: linear-gradient(135deg, var(--ember-05) 0%, transparent 60%);
  content: '';
  inset: 0;
}

/* Example Circuit Preview */
.example-circuit-preview {
  position: relative;
  z-index: var(--z-elevated);
  --wire-h: 28px;
  --wire-gap: 12px;
  --wire-step: calc(var(--wire-h) + var(--wire-gap));

  display: flex;
  flex-direction: column;
  gap: var(--wire-gap);
  padding: 16px;
  transform: scale(0.8);
}

/* Example Qubit Label */
.example-qubit-label {
  width: 40px;
  color: var(--ash);
  text-align: right;
  user-select: none;
  flex-shrink: 0;
  white-space: nowrap;
}

/* Example Wire */
.example-wire {
  display: flex;
  align-items: center;
  gap: 8px;
  height: var(--wire-h);
}

/* Example Wire Line */
.example-wire-line {
  position: relative;
  display: flex;
  flex: 1;
  align-items: center;
  gap: 4px;
  height: 1px;
  padding: 0 4px;
  background: var(--wire-light);
}

/* Example Gate */
.example-gate {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--bone);
  background: var(--carbon);
  border: 1px solid var(--wire);
  border-radius: 2px;
  flex-shrink: 0;
}

/* Example Empty */
.example-empty {
  background: transparent !important;
  border-color: transparent !important;
}

/* Example Target Symbol */
.example-target-symbol {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  border: 1px solid var(--bone);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}
.example-target-symbol::before,
.example-target-symbol::after {
  position: absolute;
  background: var(--bone);
  content: '';
}
.example-target-symbol::before {
  top: 0;
  left: 50%;
  width: 1px;
  height: 100%;
  transform: translateX(-50%);
}
.example-target-symbol::after {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

/* Example Swap Symbol */
.example-swap-symbol {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  color: var(--bone);
  transform: translate(-50%, -50%);
}

/* Example Control Dot */
.example-control-dot {
  position: relative;
  width: 10px;
  height: 10px;
  margin: 0 9px;
  background: var(--bone);
  border: none;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Example Connector */
.example-connector {
  position: absolute;
  top: 100%; /* Start exactly at the bottom edge of the control dot */
  left: 50%;
  z-index: var(--z-behind);
  width: 1px;
  background: var(--wire-light);
  transform: translateX(-50%);
}

/* Example Card Body */
.example-card-body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: var(--sp-4);
}
.example-card-body h3 {
  margin-bottom: var(--sp-2);
  font-size: var(--text-md);
  font-weight: 600;
}
.example-card-body p {
  margin-bottom: var(--sp-3);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--ash);
}

/* Example Tip */
.example-tip {
  margin-bottom: var(--sp-4);
  padding: var(--sp-2) var(--sp-3);
  font-size: var(--text-xs);
  line-height: 1.5;
  color: var(--ash);
  background: var(--surface-hover);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  border-left: 3px solid var(--ember);
}
.example-tip strong {
  font-weight: 600;
  color: var(--bone);
}

/* Example Card Meta */
.example-card-meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: auto;
}

/* Example Meta Tag */
.example-meta-tag {
  padding: 2px 8px;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--ember);
  background: var(--ember-10);
  border-radius: 10px;
  letter-spacing: 0.04em;
}

/* Example Card Container */
.example-card-container {
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Example Connector Line */
.example-connector-line {
  position: absolute;
  width: 1px;
  height: calc(var(--steps, 1) * var(--wire-step));
  background: var(--wire);
  left: 50%;
  top: 50%;
  z-index: -1;
}

/* Example Gate Relative */
.example-gate-relative {
  position: relative;
}

/* Example Card Actions */
.example-card-actions {
  display: flex;
  width: 100%;
  padding-top: 16px;
}

/* Example Card Btn */
.example-card-btn {
  width: 100%;
  justify-content: center;
}

/* Saved Circuits Btn */
.saved-circuits-btn {
  width: 100%;
  justify-content: center;
}

/* My Saved Circuits Card */
.saved-circuits-card {
  border: 1px solid var(--info);
}

/* Saved Circuits Card */
.saved-circuits-card.interactive:hover {
  border-color: var(--info);
}
.saved-circuits-card h3 {
  color: var(--info);
}
.saved-circuits-card .example-meta-tag {
  color: var(--info);
  background: var(--info-10);
}
.saved-circuits-card .saved-circuits-btn {
  background: var(--info);
  border-color: var(--info);
}
.saved-circuits-card .saved-circuits-btn:hover {
  background: var(--info);
  border-color: var(--info);
}

/* Saved Circuits Icon */
.saved-circuits-icon svg {
  width: 100%;
  height: 100%;
}

/* Saved Circuits Count */
.saved-circuits-count {
  position: absolute;
  top: -6px;
  right: -8px;
  background: var(--ember);
  color: var(--bone);
  font-size: var(--text-xs);
  font-weight: 700;
  border-radius: 999px;
  padding: 1px 5px;
  line-height: 1.4;
  min-width: 16px;
  text-align: center;
}

/* Saved Circuit Modal */
.saved-circuits-modal-container {
  width: 800px;
  max-width: 90vw;
  margin: auto;
  flex: none;
  min-height: 50vh;
  max-height: 85vh;
}

/* Saved Circuits Modal Body */
.saved-circuits-modal-body {
  padding: var(--sp-4);
  overflow-y: auto;
  flex: 1;
}

/* Saved Circuit Modal Empty State */
.saved-circuits-empty {
  text-align: center;
  padding: var(--sp-8);
  color: var(--ash);
}

/* Saved Circuits Empty Subtitle */
.saved-circuits-empty-subtitle {
  font-size: var(--text-sm);
  margin-top: var(--sp-2);
}

/* Saved Circuit Modal Rows */
.saved-circuit-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-2) 0;
  border-bottom: 1px solid var(--wire);
}

/* Saved Circuit Row */
.saved-circuit-row:last-child {
  border-bottom: none;
}

/* Saved Circuit Name */
.saved-circuit-name {
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--bone);
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Saved Circuit Actions */
.saved-circuit-actions {
  display: flex;
  gap: var(--sp-4);
  flex-shrink: 0;
}
.saved-circuit-actions .btn svg {
  width: 14px;
  height: 14px;
}

/* Saved Circuit Action Link */
.saved-circuit-action-link {
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  font-size: var(--text-xs);
  font-weight: 400;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}
.saved-circuit-action-link:hover {
  transform: scale(1.15);
}
.saved-circuit-action-link.load {
  color: var(--ember);
}
.saved-circuit-action-link.copy {
  color: var(--ember);
}
.saved-circuit-action-link.delete {
  color: var(--danger);
}
.saved-circuit-action-link svg {
  width: 14px;
  height: 14px;
}