/* ===== CRT Terminal Theme ===== */
:root {
  --bg: #0a0a0a;
  --bg-panel: #0d1117;
  --bg-card: #111820;
  --bg-hover: #161b22;
  --green: #00ff41;
  --green-dim: #00cc33;
  --green-dark: #003300;
  --amber: #ffb000;
  --amber-dim: #cc8800;
  --cyan: #00ffff;
  --cyan-dim: #00cccc;
  --purple: #aa55ff;
  --purple-dim: #8833dd;
  --red: #ff4444;
  --text: #c9d1d9;
  --text-dim: #8b949e;
  --border: #21262d;
  --border-bright: #30363d;
  --font: 'Source Code Pro', 'Courier New', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Scanlines overlay */
.scanlines {
  pointer-events: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 9999;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.03) 0px,
    rgba(0, 0, 0, 0.03) 1px,
    transparent 1px,
    transparent 2px
  );
}

/* ===== Navigation ===== */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left { display: flex; align-items: center; }

.nav-brand {
  text-decoration: none;
  color: var(--green);
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-icon {
  font-size: 1.4rem;
  text-shadow: 0 0 10px var(--green);
  animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { text-shadow: 0 0 10px var(--green); }
  50% { text-shadow: 0 0 20px var(--green), 0 0 30px var(--green); }
}

.nav-right { display: flex; gap: 1rem; }

.nav-link {
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.4rem 0.8rem;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 0.85rem;
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--green);
  border-color: var(--green-dark);
}

.nav-link.active {
  color: var(--green);
  border-color: var(--green);
  background: var(--green-dark);
}

/* ===== Flash ===== */
.flash-notice {
  background: var(--green-dark);
  color: var(--green);
  border: 1px solid var(--green-dim);
  padding: 0.6rem 1.5rem;
  font-size: 0.85rem;
  text-align: center;
}

/* ===== Builder Layout ===== */
.builder-container {
  display: grid;
  grid-template-columns: 240px 1fr 380px;
  grid-template-rows: auto 1fr;
  height: calc(100vh - 49px);
  overflow: hidden;
}

.pipeline-tabs {
  grid-column: 1 / -1;
  display: flex;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0 1rem;
}

.pipeline-tab {
  padding: 0.6rem 1.2rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.pipeline-tab:hover { color: var(--text); }

.pipeline-tab.active {
  color: var(--green);
  border-bottom-color: var(--green);
}

.pipeline-tab .tab-count {
  background: var(--border);
  color: var(--text-dim);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  font-size: 0.75rem;
  margin-left: 0.3rem;
}

.pipeline-tab.active .tab-count {
  background: var(--green-dark);
  color: var(--green);
}

/* ===== Component Palette (Left Sidebar) ===== */
.component-palette {
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 0.75rem;
}

.palette-section {
  margin-bottom: 1rem;
}

.palette-section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  padding: 0.3rem 0.5rem;
  margin-bottom: 0.3rem;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: grab;
  font-size: 0.8rem;
  transition: all 0.15s;
  user-select: none;
}

.palette-item:hover {
  background: var(--bg-hover);
  border-color: var(--border-bright);
}

.palette-item:active { cursor: grabbing; }

.palette-item .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.palette-item[data-category="receivers"] .dot { background: var(--green); box-shadow: 0 0 6px var(--green); }
.palette-item[data-category="processors"] .dot { background: var(--amber); box-shadow: 0 0 6px var(--amber); }
.palette-item[data-category="exporters"] .dot { background: var(--cyan); box-shadow: 0 0 6px var(--cyan); }
.palette-item[data-category="connectors"] .dot { background: var(--purple); box-shadow: 0 0 6px var(--purple); }

/* ===== Pipeline Canvas (Center) ===== */
.pipeline-canvas {
  background: var(--bg);
  overflow: auto;
  padding: 2rem;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pipeline-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  min-height: 200px;
  flex: 1;
}

.pipeline-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 180px;
  position: relative;
}

.pipeline-column-header {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
  padding: 0.3rem 0.8rem;
  border-radius: 3px;
  border: 1px solid var(--border);
}

.pipeline-column[data-type="receivers"] .pipeline-column-header {
  color: var(--green);
  border-color: var(--green-dark);
}
.pipeline-column[data-type="processors"] .pipeline-column-header {
  color: var(--amber);
  border-color: var(--amber-dim);
}
.pipeline-column[data-type="exporters"] .pipeline-column-header {
  color: var(--cyan);
  border-color: var(--cyan-dim);
}

.pipeline-components {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
  max-width: 200px;
  min-height: 60px;
  padding: 0.5rem;
  border: 1px dashed var(--border);
  border-radius: 6px;
  transition: all 0.2s;
}

.pipeline-components.drag-over {
  border-color: var(--green);
  background: rgba(0, 255, 65, 0.05);
}

.pipeline-components.empty::after {
  content: "Drop here";
  color: var(--text-dim);
  font-size: 0.75rem;
  text-align: center;
  padding: 1rem;
  opacity: 0.5;
}

.pipeline-component {
  padding: 0.5rem 0.7rem;
  border-radius: 4px;
  font-size: 0.8rem;
  cursor: pointer;
  position: relative;
  transition: all 0.15s;
  display: flex;
  align-items: center;
  justify-content: space-between;
  animation: comp-add 0.2s ease-out;
}

@keyframes comp-add {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.pipeline-component.receiver {
  background: rgba(0, 255, 65, 0.1);
  border: 1px solid var(--green-dark);
  color: var(--green);
}
.pipeline-component.receiver:hover,
.pipeline-component.receiver.selected {
  border-color: var(--green);
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

.pipeline-component.processor {
  background: rgba(255, 176, 0, 0.1);
  border: 1px solid rgba(255, 176, 0, 0.3);
  color: var(--amber);
}
.pipeline-component.processor:hover,
.pipeline-component.processor.selected {
  border-color: var(--amber);
  box-shadow: 0 0 10px rgba(255, 176, 0, 0.2);
}

.pipeline-component.exporter {
  background: rgba(0, 255, 255, 0.1);
  border: 1px solid rgba(0, 255, 255, 0.3);
  color: var(--cyan);
}
.pipeline-component.exporter:hover,
.pipeline-component.exporter.selected {
  border-color: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

.pipeline-component.connector {
  background: rgba(170, 85, 255, 0.1);
  border: 1px solid rgba(170, 85, 255, 0.3);
  color: var(--purple);
}
.pipeline-component.connector:hover,
.pipeline-component.connector.selected {
  border-color: var(--purple);
  box-shadow: 0 0 10px rgba(170, 85, 255, 0.2);
}

.comp-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.75rem;
  padding: 0 0.2rem;
  opacity: 0;
  transition: opacity 0.15s;
}

.pipeline-component:hover .comp-remove { opacity: 1; }
.comp-remove:hover { color: var(--red); }

/* Arrow connectors */
.pipeline-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.5rem;
  color: var(--text-dim);
  font-size: 1.5rem;
  align-self: center;
  flex-shrink: 0;
  margin-top: 2rem;
}

/* ===== Config Panel (right side or modal-ish) ===== */
.config-sidebar {
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.config-panel-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}

.config-panel-tab {
  flex: 1;
  padding: 0.6rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.config-panel-tab:hover { color: var(--text); }
.config-panel-tab.active {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.config-panel-content {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
}

.config-panel-content.hidden { display: none; }

/* Component config form */
.config-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.config-form .no-selection {
  color: var(--text-dim);
  text-align: center;
  padding: 2rem;
  font-size: 0.85rem;
}

.config-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.config-field label {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.config-field input,
.config-field select,
.config-field textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.85rem;
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  outline: none;
  transition: border-color 0.2s;
}

.config-field input:focus,
.config-field select:focus,
.config-field textarea:focus {
  border-color: var(--green);
}

.config-field textarea {
  min-height: 60px;
  resize: vertical;
}

.config-field .toggle-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
  cursor: pointer;
}

.toggle-switch input { display: none; }

.toggle-switch .slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 10px;
  transition: 0.2s;
}

.toggle-switch input:checked + .slider {
  background: var(--green-dark);
}

.toggle-switch .slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  bottom: 2px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: 0.2s;
}

.toggle-switch input:checked + .slider::before {
  transform: translateX(16px);
  background: var(--green);
}

/* ===== YAML Output Panel ===== */
.yaml-panel {
  position: relative;
}

.yaml-output {
  background: var(--bg);
  color: var(--green);
  font-family: var(--font);
  font-size: 0.8rem;
  line-height: 1.6;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  min-height: 300px;
  white-space: pre-wrap;
  word-break: break-all;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}

.yaml-actions {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.btn {
  background: var(--bg-hover);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.8rem;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.btn:hover {
  border-color: var(--green);
  color: var(--green);
}

.btn-green {
  border-color: var(--green-dark);
  color: var(--green);
}

.btn-green:hover {
  background: var(--green-dark);
  border-color: var(--green);
}

.btn-amber {
  border-color: var(--amber-dim);
  color: var(--amber);
}

.btn-amber:hover {
  background: rgba(255, 176, 0, 0.1);
  border-color: var(--amber);
}

.btn-cyan {
  border-color: var(--cyan-dim);
  color: var(--cyan);
}

.btn-sm {
  font-size: 0.75rem;
  padding: 0.3rem 0.6rem;
}

/* ===== Save Modal ===== */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  width: 90%;
  max-width: 500px;
}

.modal h3 {
  color: var(--green);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.modal .config-field { margin-bottom: 0.75rem; }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 1rem;
}

/* ===== Templates Page ===== */
.page-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.page-title {
  color: var(--green);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 0 0 10px var(--green);
}

.page-subtitle {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

.template-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  transition: all 0.2s;
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  display: block;
}

.template-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.1);
  transform: translateY(-1px);
}

.template-card h3 {
  color: var(--green);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.template-card p {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  line-height: 1.5;
}

.template-components {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.template-tag {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  border-radius: 3px;
  border: 1px solid;
}

.template-tag.receiver { color: var(--green); border-color: var(--green-dark); }
.template-tag.processor { color: var(--amber); border-color: rgba(255, 176, 0, 0.3); }
.template-tag.exporter { color: var(--cyan); border-color: rgba(0, 255, 255, 0.3); }

/* ===== Configs List Page ===== */
.config-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.config-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
}

.config-card:hover {
  border-color: var(--green-dim);
}

.config-card-info h3 {
  color: var(--green);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.config-card-info p {
  color: var(--text-dim);
  font-size: 0.8rem;
}

.config-card-meta {
  text-align: right;
  color: var(--text-dim);
  font-size: 0.75rem;
}

/* ===== Config Show Page ===== */
.config-show {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
}

.config-show h1 {
  color: var(--green);
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.config-show .description {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.config-show .yaml-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  color: var(--green);
  font-size: 0.85rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-x: auto;
  position: relative;
}

.config-show .meta {
  margin-top: 1rem;
  color: var(--text-dim);
  font-size: 0.8rem;
  display: flex;
  gap: 1.5rem;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-dim);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

/* Copy feedback */
.copy-feedback {
  position: fixed;
  top: 60px;
  right: 20px;
  background: var(--green-dark);
  color: var(--green);
  border: 1px solid var(--green);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.85rem;
  z-index: 300;
  animation: fade-in-out 2s ease;
  pointer-events: none;
}

@keyframes fade-in-out {
  0% { opacity: 0; transform: translateY(-10px); }
  15% { opacity: 1; transform: translateY(0); }
  85% { opacity: 1; }
  100% { opacity: 0; }
}

/* Responsive */
@media (max-width: 1024px) {
  .builder-container {
    grid-template-columns: 200px 1fr 320px;
  }
}

@media (max-width: 768px) {
  .builder-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto auto;
    height: auto;
  }

  .component-palette {
    border-right: none;
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.5rem;
  }

  .palette-section { margin-bottom: 0; }
}

/* ===== Simulation Overlay ===== */
.sim-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: var(--bg);
  z-index: 50;
  flex-direction: column;
}
.sim-overlay.active { display: flex; }

.sim-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
  gap: 1rem;
  flex-shrink: 0;
}
.sim-type-label { color: var(--green); font-weight: 600; }
.sim-progress { flex: 1; max-width: 200px; height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
.sim-progress-fill { height: 100%; background: var(--green); transition: width 0.3s linear; width: 0%; }

.sim-body { display: flex; flex: 1; overflow: hidden; }
.sim-canvas { flex: 1; position: relative; overflow: hidden; }
.sim-log-panel { width: 220px; background: var(--bg-panel); border-left: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; }
.sim-log-header { padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--border); font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.1em; }
.sim-log-entries { flex: 1; overflow-y: auto; padding: 0.3rem 0.5rem; font-size: 0.65rem; line-height: 1.5; }
.sim-log-entry { padding: 0.1rem 0; border-bottom: 1px solid rgba(255,255,255,0.02); }
.sim-log-recv { color: var(--green-dim); }
.sim-log-proc { color: var(--amber-dim); }
.sim-log-exp { color: var(--cyan-dim); }
.sim-log-drop { color: var(--red); }

/* Simulation nodes */
.sim-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  height: 100%;
  padding: 1.5rem 1rem;
}
.sim-stage {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
  align-items: center;
  padding-top: 0.5rem;
}
.sim-arrow {
  display: flex;
  align-items: center;
  padding: 0 0.2rem;
  color: var(--text-dim);
  font-size: 1.5rem;
  margin-top: 1.5rem;
  opacity: 0.4;
  animation: sim-arrow-pulse 1.5s ease-in-out infinite;
}
@keyframes sim-arrow-pulse { 0%, 100% { opacity: 0.3; } 50% { opacity: 0.7; } }

.sim-node {
  padding: 0.6rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  min-width: 130px;
  transition: all 0.15s;
  position: relative;
}
.sim-node:hover { transform: scale(1.03); }
.sim-receivers { background: rgba(0,255,65,0.08); border: 1px solid var(--green-dark); color: var(--green); }
.sim-processors { background: rgba(255,176,0,0.08); border: 1px solid rgba(255,176,0,0.25); color: var(--amber); }
.sim-exporters { background: rgba(0,255,255,0.08); border: 1px solid rgba(0,255,255,0.25); color: var(--cyan); }
.sim-node-name { font-size: 0.85rem; font-weight: 600; }
.sim-node-stats { font-size: 0.6rem; color: var(--text-dim); margin-top: 0.25rem; }
.sim-node.sim-glow { box-shadow: 0 0 20px rgba(0,255,255,0.4); }
.sim-mem-gauge { height: 4px; background: var(--border); border-radius: 2px; margin-top: 0.35rem; overflow: hidden; }
.sim-mem-fill { height: 100%; background: var(--amber); transition: width 0.3s, background 0.3s; border-radius: 2px; }
.sim-batch-info, .sim-sample-rt { font-size: 0.6rem; color: var(--amber-dim); margin-top: 0.2rem; }

/* Particles */
.sim-particle {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 5;
  will-change: transform;
  left: 0; top: 0;
}
.sim-particle-traces { background: var(--green); box-shadow: 0 0 8px var(--green); }
.sim-particle-metrics { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.sim-particle-logs { background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }
.sim-particle.dropped {
  background: var(--red) !important;
  box-shadow: 0 0 12px var(--red) !important;
  animation: p-drop 0.4s forwards;
}
@keyframes p-drop { to { opacity: 0; transform: scale(0) !important; } }
.sim-particle.absorbed { animation: p-absorb 0.3s forwards; }
@keyframes p-absorb { to { opacity: 0; transform: scale(0.3); } }
.sim-particle.flash { animation: p-flash 0.25s; }
@keyframes p-flash { 50% { width: 14px; height: 14px; margin: -3px 0 0 -3px; filter: brightness(2); } }

/* Summary */
.sim-summary {
  display: none;
  position: absolute;
  inset: 8% 12%;
  background: var(--bg-panel);
  border: 1px solid var(--green);
  border-radius: 8px;
  z-index: 60;
  flex-direction: column;
  overflow: hidden;
}
.sim-summary.active { display: flex; }
.sim-summary-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); }
.sim-summary-header h3 { color: var(--green); font-size: 1rem; margin: 0; }
.sim-summary-overview { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0.75rem; padding: 1rem 1.25rem; }
.sim-ov-card { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 0.75rem; text-align: center; }
.sim-ov-val { font-size: 1.4rem; font-weight: 700; }
.sim-ov-val.green { color: var(--green); }
.sim-ov-val.cyan { color: var(--cyan); }
.sim-ov-val.red { color: var(--red); }
.sim-ov-val.amber { color: var(--amber); }
.sim-ov-label { font-size: 0.7rem; color: var(--text-dim); margin-top: 0.25rem; }
.sim-summary-table { padding: 0 1.25rem 1rem; }
.sim-stat-row { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 0.5rem; padding: 0.4rem 0; border-bottom: 1px solid var(--border); font-size: 0.8rem; }
.sim-stat-name { font-weight: 600; }
.sim-stat-name.green { color: var(--green); }
.sim-stat-name.amber { color: var(--amber); }
.sim-stat-name.cyan { color: var(--cyan); }
.sim-stat-val { color: var(--text-dim); }
.sim-stat-drop { color: var(--red); }
.sim-summary-time { padding: 0.75rem 1.25rem; font-size: 0.75rem; color: var(--text-dim); border-top: 1px solid var(--border); }

/* Data Preview */
.data-preview-panel {
  display: none;
  position: fixed;
  top: 8%;
  left: 12%;
  right: 12%;
  bottom: 8%;
  background: var(--bg-panel);
  border: 1px solid var(--green);
  border-radius: 8px;
  z-index: 300;
  flex-direction: column;
  overflow: hidden;
}
.data-preview-panel.active { display: flex; }
.data-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.data-preview-header h3 { color: var(--green); font-size: 0.9rem; margin: 0; }
.data-preview-body { display: grid; grid-template-columns: 1fr 1fr; flex: 1; overflow: hidden; }
.data-preview-col { padding: 0.75rem 1rem; overflow-y: auto; }
.data-preview-col:first-child { border-right: 1px solid var(--border); }
.data-preview-col h4 { font-size: 0.7rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 0.5rem; }
.data-preview-col pre {
  background: var(--bg);
  color: var(--green);
  padding: 0.75rem;
  border-radius: 4px;
  font-size: 0.78rem;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font);
}

/* ===== Validation Panel ===== */
.validation-panel {
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}
.validation-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 1rem;
  cursor: pointer;
  font-size: 0.75rem;
  color: var(--amber);
  user-select: none;
}
.validation-header:hover { background: var(--bg-hover); }
.validation-body { padding: 0 1rem 0.5rem; max-height: 150px; overflow-y: auto; }
.validation-body.collapsed { display: none; }
.val-item { padding: 0.3rem 0; font-size: 0.78rem; border-bottom: 1px solid rgba(255,255,255,0.03); }
.val-warning { color: var(--amber); }
.val-info { color: var(--cyan); }
.val-error { color: var(--red); }

/* Simulate button */
.btn-amber { border-color: var(--amber-dim); color: var(--amber); }
.btn-amber:hover { background: rgba(255,176,0,0.1); border-color: var(--amber); }
.btn-red { border-color: var(--red) !important; color: var(--red) !important; }

/* Pipeline canvas needs relative for overlay */
.pipeline-canvas { position: relative; }

/* Deploy & Instrument tabs */
.deploy-subtabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin: -1rem -1rem 0.75rem -1rem;
  padding: 0;
  flex-wrap: wrap;
}
.deploy-subtab {
  padding: 0.45rem 0.6rem;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.deploy-subtab:hover { color: var(--text); }
.deploy-subtab.active {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.install-cmd {
  background: rgba(0,255,65,0.05);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.5rem 0.7rem;
  font-family: var(--font);
  font-size: 0.7rem;
  color: var(--amber);
  margin-bottom: 0.5rem;
  white-space: pre-wrap;
  word-break: break-all;
}
.install-cmd:empty { display: none; }
.deploy-panel .yaml-output,
.instrument-panel .yaml-output {
  font-size: 0.72rem;
  line-height: 1.45;
}

/* Adjust tab sizing for 4 tabs */
.config-panel-tabs {
  flex-wrap: nowrap;
}
.config-panel-tab {
  font-size: 0.7rem;
  padding: 0.5rem 0.35rem;
  text-align: center;
}
/* ===== Tutorial Overlay ===== */
.tutorial-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 10000;
  pointer-events: none;
}

.tutorial-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  pointer-events: auto;
  z-index: 10000;
}

.tutorial-spotlight {
  position: absolute;
  display: none;
  z-index: 10001;
  border-radius: 8px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.75), 0 0 20px var(--green), 0 0 40px rgba(0, 255, 65, 0.2);
  pointer-events: none;
  transition: all 0.3s ease;
}

.tutorial-card {
  position: fixed;
  z-index: 10003;
  background: var(--bg-panel);
  border: 1px solid var(--green-dim);
  border-radius: 8px;
  padding: 1.25rem;
  max-width: 380px;
  min-width: 300px;
  pointer-events: auto;
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.15), inset 0 0 20px rgba(0, 0, 0, 0.3);
  animation: tutorialFadeIn 0.3s ease;
}

@keyframes tutorialFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.tutorial-step-indicator {
  display: flex;
  gap: 6px;
  margin-bottom: 0.75rem;
}

.tutorial-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-bright);
  transition: all 0.3s;
}
.tutorial-dot.active {
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
}
.tutorial-dot.done {
  background: var(--green-dim);
}

.tutorial-card-title {
  color: var(--green);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
  font-family: var(--font);
}

.tutorial-card-body p {
  color: var(--text);
  font-size: 0.82rem;
  line-height: 1.5;
  margin-bottom: 0.4rem;
}

.tutorial-success {
  color: var(--amber) !important;
  font-weight: 600;
}

.tutorial-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1rem;
  gap: 0.5rem;
}

.tutorial-hint {
  color: var(--text-dim);
  font-size: 0.75rem;
  font-style: italic;
}

.tutorial-skip-btn {
  opacity: 0.7;
  font-size: 0.75rem !important;
}

.tutorial-next-btn {
  margin-left: auto;
}

.tutorial-btn {
  background: transparent;
  border: 1px solid var(--amber);
  color: var(--amber);
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: var(--font);
  border-radius: 4px;
  transition: all 0.2s;
}
.tutorial-btn:hover {
  background: var(--amber);
  color: var(--bg);
}

/* ===== Gallery Page ===== */
.gallery-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.gallery-controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  align-items: center;
}

.search-form {
  display: flex;
}

.search-input {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  font-family: var(--font);
  font-size: 0.82rem;
  border-radius: 4px;
  width: 260px;
  transition: border-color 0.2s;
}
.search-input:focus {
  outline: none;
  border-color: var(--green-dim);
  box-shadow: 0 0 8px rgba(0, 255, 65, 0.1);
}
.search-input::placeholder {
  color: var(--text-dim);
}

.gallery-sort {
  display: flex;
  gap: 0.4rem;
}

.sort-btn {
  padding: 0.4rem 0.7rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.75rem;
  font-family: var(--font);
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.2s;
}
.sort-btn:hover {
  border-color: var(--green-dim);
  color: var(--text);
}
.sort-btn.active {
  border-color: var(--green);
  color: var(--green);
  background: var(--green-dark);
}

.gallery-tags {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.tag-filter {
  padding: 0.25rem 0.6rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.7rem;
  font-family: var(--font);
  text-decoration: none;
  border-radius: 3px;
  transition: all 0.2s;
}
.tag-filter:hover {
  border-color: var(--cyan-dim);
  color: var(--text);
}
.tag-filter.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 255, 255, 0.05);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.gallery-card:hover {
  border-color: var(--green-dim);
  box-shadow: 0 0 15px rgba(0, 255, 65, 0.05);
}

.gallery-card-header h3 {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 0.2rem;
}
.gallery-card-header h3 a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}
.gallery-card-header h3 a:hover {
  color: var(--green);
}

.pipeline-summary {
  color: var(--amber);
  font-size: 0.75rem;
  font-weight: 600;
}

.gallery-card-desc {
  color: var(--text-dim);
  font-size: 0.78rem;
  line-height: 1.4;
}

.gallery-components {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.comp-badge {
  padding: 0.15rem 0.45rem;
  font-size: 0.65rem;
  border-radius: 3px;
  font-family: var(--font);
  border: 1px solid;
}
.comp-badge.receiver {
  color: var(--green);
  border-color: var(--green-dark);
  background: rgba(0, 255, 65, 0.05);
}
.comp-badge.processor {
  color: var(--amber);
  border-color: rgba(255, 176, 0, 0.2);
  background: rgba(255, 176, 0, 0.05);
}
.comp-badge.exporter {
  color: var(--cyan);
  border-color: rgba(0, 255, 255, 0.2);
  background: rgba(0, 255, 255, 0.05);
}

.gallery-card-tags {
  display: flex;
  gap: 0.3rem;
  flex-wrap: wrap;
}

.card-tag {
  color: var(--purple);
  font-size: 0.65rem;
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s;
}
.card-tag:hover {
  opacity: 1;
}

.gallery-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.gallery-card-stats {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.upvote-btn {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.2rem 0.5rem;
  font-size: 0.75rem;
  font-family: var(--font);
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}
.upvote-btn:hover:not(:disabled) {
  border-color: var(--amber);
  color: var(--amber);
}
.upvote-btn.upvoted {
  border-color: var(--amber);
  color: var(--amber);
  background: rgba(255, 176, 0, 0.1);
}
.upvote-btn:disabled {
  cursor: default;
}

.show-upvote {
  padding: 0.35rem 0.75rem;
  font-size: 0.82rem;
}

.stat {
  color: var(--text-dim);
  font-size: 0.7rem;
}

.use-btn {
  white-space: nowrap;
}

/* Save modal tags */
.save-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.3rem;
}

.save-tag-label {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 3px;
  cursor: pointer;
  font-size: 0.72rem;
  color: var(--text-dim);
  transition: all 0.2s;
}
.save-tag-label:hover {
  border-color: var(--cyan-dim);
  color: var(--text);
}
.save-tag-label input {
  display: none;
}
.save-tag-label.checked {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 255, 255, 0.05);
}

/* Purple button for connectors and import */
.btn-purple {
  border-color: var(--purple-dim);
  color: var(--purple);
}
.btn-purple:hover {
  background: rgba(170, 85, 255, 0.12);
  border-color: var(--purple);
}