:root {
  --bg: #0f1116;
  --panel: #161922;
  --panel-2: #1c1f2c;
  --text: #e6e8ed;
  --muted: #9aa2b1;
  --accent: #a54cff;
  --accent-2: #22d3ee;
  --border: #262a36;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  --radius: 12px;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

* {
  box-sizing: border-box;
}

/* Global scrollbar styles */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: rgba(22, 25, 34, 0.8);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb {
  background: rgba(165, 76, 255, 0.4);
  border-radius: 5px;
  border: 2px solid rgba(22, 25, 34, 0.8);
}

::-webkit-scrollbar-corner {
  background: rgba(22, 25, 34, 0.8);
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  background: #0b0d12;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand .logo {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #0b0d12;
  letter-spacing: 1px;
}

.brand .title {
  font-size: 18px;
  font-weight: 700;
}

.brand .subtitle {
  color: var(--muted);
  font-size: 13px;
}

.actions {
  display: flex;
  gap: 10px;
}

.pill {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: 0.2s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.pill.accent {
  background: var(--accent);
  color: #0b0d12;
  border: none;
  font-weight: 700;
}

.pill:hover {
  transform: translateY(-1px);
}

.grid {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 14px;
  padding: 12px 16px 24px;
  max-width: 1400px;
  margin: 0 auto;
  align-items: stretch;
}

.grid.prompt-collapsed {
  grid-template-columns: 44px 1fr;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
  align-self: stretch;
  height: 100%;
}

.prompt-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.prompt-header {
  display: flex;
  justify-content: flex-start;
  margin-bottom: 10px;
}

.prompt-content {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.prompt-panel .collapsed-label {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 12px 6px;
  height: 100%;
  align-items: center;
  justify-content: center;
}

.prompt-panel .collapsed-label::after {
  content: "";
  flex: 1;
}

.prompt-panel.collapsed {
  padding: 0;
  background: var(--panel-2);
}

.prompt-panel.collapsed .prompt-header,
.prompt-panel.collapsed .prompt-content {
  display: none;
}

.prompt-panel.collapsed .collapsed-label {
  display: flex;
}

.tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 12px;
}

.tab {
  flex: 1;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 10px;
  border-radius: 10px;
  cursor: pointer;
}

.tab.active {
  border-color: var(--accent);
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(165, 76, 255, 0.35);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.label {
  font-size: 13px;
  color: var(--muted);
}

textarea {
  width: 100%;
  min-height: 80px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  resize: vertical;
}

.controls {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 10px;
  margin-bottom: 12px;
}

.control {
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 10px;
  border-radius: 10px;
}

.chips {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.chips button {
  background: #1f2330;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.2s ease;
}

.chips button.active {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 0 1px rgba(165, 76, 255, 0.3);
}

input[type="number"] {
  width: 100%;
  margin-top: 6px;
  background: #1f2330;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px;
  border-radius: 8px;
  font-size: 13px;
  overflow: hidden;
  appearance: textfield;
}

input[type="number"]::placeholder {
  font-size: 12px;
}

/* Hide spinner buttons in number input */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.actions-row {
  display: flex;
  gap: 10px;
  margin: 10px 0;
}

button.primary,
button.secondary,
button.ghost {
  flex: 1;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 700;
}

button.primary {
  background: linear-gradient(120deg, var(--accent), #7f3cff);
  color: #0b0d12;
}

button.secondary {
  background: var(--panel-2);
  border-color: var(--border);
  color: var(--text);
}

button.ghost {
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--muted);
}

button.ghost.sm {
  padding: 6px;
  flex: unset;
}

button:hover {
  transform: translateY(-1px);
}

.status {
  min-height: 20px;
  font-size: 13px;
  color: var(--muted);
}

.preview {
  display: flex;
  flex-direction: column;
}

.preview-header {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: stretch;
  min-height: 462px; /* card-header (42px) + preview-body (420px) */
}

/* 3-column layout when nobg card is visible */
.preview-grid.has-nobg {
  grid-template-columns: 1fr 1fr 1fr;
}

/* 2-column collapse states */
.preview-grid.pseudo-collapsed {
  grid-template-columns: 40px 1fr;
}

.preview-grid.perfect-collapsed {
  grid-template-columns: 1fr 40px;
}

.preview-grid.both-collapsed {
  grid-template-columns: 40px 40px;
}

/* 3-column collapse states */
.preview-grid.has-nobg.pseudo-collapsed {
  grid-template-columns: 40px 1fr 1fr;
}

.preview-grid.has-nobg.perfect-collapsed {
  grid-template-columns: 1fr 40px 1fr;
}

.preview-grid.has-nobg.nobg-collapsed {
  grid-template-columns: 1fr 1fr 40px;
}

.preview-grid.has-nobg.pseudo-collapsed.perfect-collapsed {
  grid-template-columns: 40px 40px 1fr;
}

.preview-grid.has-nobg.pseudo-collapsed.nobg-collapsed {
  grid-template-columns: 40px 1fr 40px;
}

.preview-grid.has-nobg.perfect-collapsed.nobg-collapsed {
  grid-template-columns: 1fr 40px 40px;
}

.preview-grid.has-nobg.pseudo-collapsed.perfect-collapsed.nobg-collapsed {
  grid-template-columns: 40px 40px 40px;
}

.preview-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  min-width: 0;
  position: relative;
}

/* Vertical collapsed label - hidden by default */
.collapsed-label {
  display: none;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  padding: 12px 0;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  cursor: pointer;
  flex: 1;
  justify-content: center;
  align-items: center;
  user-select: none;
}

.collapsed-label:hover {
  color: var(--accent);
}

/* When collapsed, show only vertical label but keep same height */
.preview-card.collapsed .collapsed-label {
  display: flex;
}

.preview-card.collapsed .card-header {
  display: none;
}

.preview-card.collapsed .preview-body {
  display: none;
}

.preview-card.collapsed .card-actions {
  display: none;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.card-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.save-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s ease;
}

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

.save-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.save-all-container {
  display: flex;
  justify-content: center;
  padding: 16px;
}

.save-all-btn {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 24px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s ease;
}

.save-all-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.zoom-slider {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 80px;
  height: 4px;
  background: rgba(165, 76, 255, 0.3) !important;
  border-radius: 2px;
  cursor: pointer;
  outline: none;
  border: none;
  accent-color: #a54cff;
}

.zoom-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 4px;
  background: rgba(165, 76, 255, 0.3) !important;
  border-radius: 2px;
  border: none;
}

.zoom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  background: #a54cff !important;
  border-radius: 50%;
  cursor: grab;
  border: none;
  margin-top: -5px;
  box-shadow: 0 0 4px rgba(165, 76, 255, 0.5);
}

.zoom-slider::-webkit-slider-thumb:hover {
  background: #b366ff !important;
  transform: scale(1.1);
}

.zoom-slider::-moz-range-track {
  width: 100%;
  height: 4px;
  background: rgba(165, 76, 255, 0.3) !important;
  border-radius: 2px;
  border: none;
}

.zoom-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  background: #a54cff !important;
  border-radius: 50%;
  cursor: grab;
  border: none;
  box-shadow: 0 0 4px rgba(165, 76, 255, 0.5);
}

.zoom-slider::-moz-range-thumb:hover {
  background: #b366ff !important;
}

.collapse,
.pseudo-toggle {
  background: transparent;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.preview-body {
  position: relative;
  height: 420px;
  min-height: 320px;
  width: 100%;
  background: #1a1d27;
  border-radius: 0 0 12px 12px;
  overflow: auto;
  padding: 0;
  cursor: grab;
}

.preview-body:active {
  cursor: grabbing;
}

.preview-body::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.preview-body::-webkit-scrollbar-track {
  background: rgba(22, 25, 34, 0.8);
  border-radius: 5px;
}

.preview-body::-webkit-scrollbar-thumb {
  background: rgba(165, 76, 255, 0.4);
  border-radius: 5px;
  border: 2px solid rgba(22, 25, 34, 0.8);
}

.preview-body::-webkit-scrollbar-corner {
  background: rgba(22, 25, 34, 0.8);
}

.preview-body .img-wrapper {
  display: block;
  position: relative;
  box-sizing: border-box;
}

.preview-body img {
  display: block;
  max-width: none;
  max-height: none;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

.pixel-grid-overlay {
  position: absolute;
  pointer-events: none;
  z-index: 2;
  display: none;
}

.pixel-grid-overlay.visible {
  display: block;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 280px;
}

.empty .icon {
  font-size: 32px;
  margin-bottom: 10px;
  color: var(--accent);
}

/* Loading state for preview cards */
.preview-card.loading {
  position: relative;
}

.preview-card.loading .preview-body {
  position: relative;
  overflow: hidden;
}

/* Dark overlay */
.preview-card.loading .preview-body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 17, 22, 0.92);
  z-index: 100;
  backdrop-filter: blur(4px);
}

/* Spinning loader */
.preview-card.loading .preview-body::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 50px;
  height: 50px;
  margin: -25px 0 0 -25px;
  border: 4px solid rgba(165, 76, 255, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  z-index: 101;
  animation: loading-spin 0.8s linear infinite;
}

@keyframes loading-spin {
  to {
    transform: rotate(360deg);
  }
}

/* Glowing border effect on preview-body while loading */
.preview-card.loading .preview-body {
  box-shadow: 
    inset 0 0 0 2px rgba(165, 76, 255, 0.5),
    inset 0 0 20px rgba(165, 76, 255, 0.15),
    0 0 15px rgba(165, 76, 255, 0.3);
  animation: loading-glow 1.5s ease-in-out infinite alternate;
}

@keyframes loading-glow {
  0% {
    box-shadow: 
      inset 0 0 0 2px rgba(165, 76, 255, 0.3),
      inset 0 0 15px rgba(165, 76, 255, 0.1),
      0 0 10px rgba(165, 76, 255, 0.2);
  }
  100% {
    box-shadow: 
      inset 0 0 0 2px rgba(165, 76, 255, 0.7),
      inset 0 0 25px rgba(165, 76, 255, 0.2),
      0 0 20px rgba(165, 76, 255, 0.4);
  }
}

/* Pulse animation for loading icon */
.preview-card.loading .empty .icon {
  animation: loading-pulse 1.5s ease-in-out infinite;
}

@keyframes loading-pulse {
  0%, 100% {
    opacity: 0.4;
    transform: scale(0.95);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

.tag {
  background: rgba(165, 76, 255, 0.18);
  color: var(--accent);
  border: 1px solid rgba(165, 76, 255, 0.35);
  padding: 6px 12px;
  border-radius: 20px;
  font-weight: 700;
}

.save-all-tag {
  cursor: pointer;
  transition: all 0.15s ease;
  font-size: 13px;
}

.save-all-tag:hover {
  background: rgba(165, 76, 255, 0.3);
  border-color: var(--accent);
}

.small {
  font-size: 12px;
  color: var(--muted);
}

@media (max-width: 1024px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Structured Prompt Section
   ======================================== */

.structured-prompt-section {
  margin-top: 20px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.sp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
}

.structured-prompt-section.collapsed .sp-header {
  border-bottom: none;
}

.sp-collapse-chevron {
  color: var(--muted);
  font-size: 14px;
  transition: transform 0.2s ease;
  width: 12px;
  display: inline-block;
}

.structured-prompt-section.collapsed .sp-collapse-chevron {
  transform: rotate(0deg);
}

.structured-prompt-section:not(.collapsed) .sp-collapse-chevron {
  transform: rotate(90deg);
}

.structured-prompt-section.collapsed .sp-content,
.structured-prompt-section.collapsed .sp-footer {
  display: none;
}

.sp-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
}

.sp-info {
  color: var(--muted);
  cursor: help;
  font-size: 12px;
}

.sp-actions {
  display: flex;
  gap: 8px;
}

.sp-toggle-code,
.sp-copy {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.15s ease;
}

.sp-toggle-code:hover,
.sp-copy:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.sp-toggle-code.active {
  background: rgba(165, 76, 255, 0.15);
  border-color: var(--accent);
  color: var(--accent);
}

.sp-content {
  max-height: 300px;
  overflow-y: auto;
}

.sp-content::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.sp-content::-webkit-scrollbar-track {
  background: rgba(22, 25, 34, 0.8);
  border-radius: 5px;
}

.sp-content::-webkit-scrollbar-thumb {
  background: rgba(165, 76, 255, 0.4);
  border-radius: 5px;
  border: 2px solid rgba(22, 25, 34, 0.8);
}

.sp-content::-webkit-scrollbar-corner {
  background: rgba(22, 25, 34, 0.8);
}

/* Tree view */
.sp-tree {
  padding: 8px 0;
}

.sp-category {
  border-bottom: 1px solid var(--border);
}

.sp-category:last-child {
  border-bottom: none;
}

.sp-category-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  transition: background 0.15s ease;
}

.sp-category-header:hover {
  background: rgba(255, 255, 255, 0.03);
}

.sp-chevron {
  color: var(--muted);
  font-size: 12px;
  transition: transform 0.2s ease;
  width: 12px;
}

.sp-category.expanded .sp-chevron {
  transform: rotate(90deg);
}

.sp-count {
  margin-left: auto;
  background: rgba(165, 76, 255, 0.2);
  color: var(--accent);
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

.sp-category-content {
  display: none;
  padding: 0 16px 12px 36px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.sp-category.expanded .sp-category-content {
  display: block;
}

.sp-field {
  margin-bottom: 8px;
}

.sp-field-label {
  color: var(--accent);
  font-weight: 500;
  margin-right: 6px;
}

.sp-field-value {
  color: var(--text);
}

.sp-object {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
}

.sp-object-title {
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 11px;
  text-transform: uppercase;
}

/* Code view */
.sp-code {
  padding: 12px 16px;
  background: rgba(0, 0, 0, 0.3);
}

.sp-code pre {
  margin: 0;
  font-family: "Fira Code", "Monaco", monospace;
  font-size: 11px;
  line-height: 1.5;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

.sp-code .json-key {
  color: #f472b6;
}

.sp-code .json-string {
  color: #a5d6ff;
}

.sp-code .json-number {
  color: #79c0ff;
}

.sp-code .json-bracket {
  color: #ffd700;
}

/* Footer */
.sp-footer {
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  text-align: right;
}

.sp-word-count {
  background: rgba(165, 76, 255, 0.15);
  color: var(--accent);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}