*, *::before, *::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

:root {
  --bg: #081016;
  --panel: #0f1720;
  --panel-2: #131d28;
  --panel-3: #182433;
  --border: rgba(170, 192, 211, 0.14);
  --border-strong: rgba(170, 192, 211, 0.28);
  --text: #eef4fb;
  --muted: #8ea0b3;
  --soft: #c8d5e2;
  --accent: #73f0c7;
  --accent-strong: #2fcca0;
  --accent-faint: rgba(115, 240, 199, 0.12);
  --danger: #ff7b7b;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
  --shadow-soft: 0 12px 34px rgba(0, 0, 0, 0.22);
  --font: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
}

html, body {
  height: 100%;
  margin: 0;
  background: #060c12;
  color: var(--text);
  font-family: var(--font);
  overflow: hidden;
}

body {
  min-height: 100vh;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

textarea {
  resize: vertical;
}

.app-shell {
  height: 100vh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
}

.app-header,
.accordion-card,
.preview-card,
.presets-modal,
.embed-step,
.tool-panel {
  border: 1px solid var(--border);
  background: rgba(15, 23, 32, 0.88);
  box-shadow: var(--shadow-soft);
}

.app-header {
  position: relative;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border-radius: var(--radius-xl);
  backdrop-filter: blur(18px);
}

.brand-block {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.brand {
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.btn,
.subject-tab,
.icon-btn,
.layerItem,
.textItem,
.accordion-trigger {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease, color 140ms ease, box-shadow 140ms ease;
}

.btn:hover,
.subject-tab:hover,
.icon-btn:hover,
.layerItem:hover,
.textItem:hover,
.accordion-trigger:hover,
.preset-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.06);
}

.btn {
  min-height: 42px;
  padding: 0 16px;
  font-size: 0.94rem;
  font-weight: 600;
}

.btn-primary {
  border-color: transparent;
  background: var(--accent);
  color: #04110d;
  box-shadow: 0 10px 26px rgba(47, 204, 160, 0.24);
}

.btn-primary:hover {
  background: #88f5d4;
}

.btn-ghost {
  color: var(--soft);
  background: transparent;
}

.btn-sm {
  min-height: 34px;
  padding: 0 12px;
  font-size: 0.84rem;
}

.select-compact,
.select,
.textInput,
.main-input,
#frameOutput,
.embed-json-textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(6, 10, 15, 0.8);
  color: var(--text);
}

.select-compact,
.select,
.textInput {
  min-height: 40px;
  padding: 0 12px;
}

.main-input,
#frameOutput,
.embed-json-textarea,
textarea.textInput,
#controlsContent textarea,
.inspector textarea,
#controlsContent input[type="text"],
.inspector input[type="text"] {
  padding: 14px 16px;
  line-height: 1.5;
}

.select-compact:focus,
.select:focus,
.textInput:focus,
.main-input:focus,
#frameOutput:focus,
.embed-json-textarea:focus,
input[type="range"]:focus {
  outline: none;
  border-color: rgba(115, 240, 199, 0.5);
  box-shadow: 0 0 0 4px rgba(115, 240, 199, 0.1);
}

.export-group {
  position: relative;
  z-index: 200;
}

.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 250;
  min-width: 220px;
  display: none;
  gap: 6px;
  padding: 10px;
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  background: rgba(12, 18, 25, 0.98);
  box-shadow: var(--shadow);
}

.dropdown.open {
  display: grid;
}

.dropdown button {
  appearance: none;
  border: 0;
  border-radius: 12px;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 12px 14px;
  cursor: pointer;
}

.dropdown button:hover {
  background: rgba(255, 255, 255, 0.06);
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(380px, 430px) minmax(0, 1fr);
  gap: 16px;
}

.editor-rail,
.preview-pane,
.preview-card {
  min-height: 0;
}

.editor-rail {
  display: grid;
  grid-template-rows: repeat(4, minmax(64px, auto));
  gap: 12px;
  align-content: start;
}

.accordion-card,
.preview-card,
.tool-panel {
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.accordion-card {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.accordion-card.is-open {
  box-shadow: var(--shadow);
}

.accordion-trigger {
  width: 100%;
  min-height: 78px;
  padding: 18px 18px;
  border: 0;
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: rgba(255, 255, 255, 0.02);
}

.accordion-card.is-open .accordion-trigger {
  background: rgba(115, 240, 199, 0.08);
}

.accordion-trigger-copy {
  display: grid;
  gap: 4px;
  text-align: left;
}

.accordion-title {
  font-size: 1.05rem;
  font-weight: 700;
}

.accordion-arrow {
  font-size: 1.4rem;
  color: var(--muted);
  transition: transform 140ms ease;
}

.accordion-card.is-open .accordion-arrow {
  transform: rotate(90deg);
  color: var(--accent);
}

.accordion-body {
  min-height: 0;
  overflow: hidden;
}

.subject-layout {
  display: grid;
  gap: 14px;
  padding-bottom: 18px;
}

.subject-card-head {
  display: flex;
  justify-content: flex-start;
  padding: 14px 18px 0;
}

.card-head-actions,
.subject-panel-actions,
.inline-actions,
.snapshot-bar,
.subject-action-row,
.preset-action-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.subject-tab {
  min-width: 84px;
  min-height: 38px;
  padding: 0 14px;
  font-size: 0.9rem;
  font-weight: 700;
}

.subject-tab.active {
  border-color: transparent;
  background: var(--accent);
  color: #04110d;
}

.subject-panel {
  padding: 0 18px;
}

.subject-field-label,
.preset-hint,
.preset-picker span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.main-input {
  min-height: 124px;
  font-size: 1rem;
}

.main-input-mono,
#frameOutput,
.embed-json-textarea,
.textInput,
#controlsContent textarea,
.inspector textarea,
#controlsContent input[type="text"],
.inspector input[type="text"] {
  font-family: var(--mono);
}

.main-input.active-subject {
  border-color: rgba(115, 240, 199, 0.6);
  box-shadow: 0 0 0 4px rgba(115, 240, 199, 0.12);
}

.subject-control-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 0 18px;
}

.mini-control {
  display: grid;
  gap: 8px;
  min-width: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.slider-control {
  min-width: 0;
}

.subject-action-row {
  grid-column: 1 / -1;
  justify-content: flex-end;
}

.preset-panel-body {
  display: grid;
  gap: 14px;
}

.preset-picker {
  display: grid;
  gap: 8px;
}

.preset-hint {
  margin: 0;
  line-height: 1.45;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent-strong);
}

.tool-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  border: 0;
  background: transparent;
  box-shadow: none;
}

.tool-panel-embedded {
  border-radius: 0;
}

.panel-body {
  min-height: 0;
  overflow: auto;
  padding: 14px 16px 18px;
}

.layers-panel-body {
  display: grid;
  gap: 12px;
  align-content: start;
  min-height: 0;
}

details {
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 700;
}

summary::-webkit-details-marker {
  display: none;
}

summary::before {
  content: '›';
  margin-right: 8px;
  color: var(--muted);
  font-size: 1.08rem;
  transition: transform 140ms ease;
}

details[open] > summary::before {
  transform: rotate(90deg);
}

summary > span:first-child {
  display: inline-flex;
  align-items: center;
}

.details-scroll {
  min-height: 0;
  overflow: auto;
  max-height: min(44vh, 28rem);
  padding: 0 16px 16px;
  display: grid;
  gap: 12px;
}

.summary-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}

.icon-btn {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 999px;
  justify-content: center;
}

.icon-btn.primary {
  border-color: rgba(115, 240, 199, 0.4);
  color: var(--accent);
}

.icon-btn.danger {
  border-color: rgba(255, 123, 123, 0.3);
  color: var(--danger);
}

.list-stack {
  display: grid;
  gap: 8px;
  padding: 4px 0 2px;
}

.layerItem,
.textItem {
  width: 100%;
  padding: 12px 14px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  text-align: left;
}

.layerItem strong,
.textItem strong {
  display: block;
  margin-bottom: 4px;
  font-size: 0.92rem;
}

.layerItem small,
.textItem small {
  color: var(--muted);
}

.layerItem.active,
.textItem.active {
  border-color: rgba(115, 240, 199, 0.32);
  background: var(--accent-faint);
}

.inspector {
  display: grid;
  gap: 10px;
  padding-top: 12px;
}

.inspector-section-title,
.controlGroup h3 {
  margin: 4px 0 0;
  color: var(--accent);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.controlGroup {
  display: grid;
  gap: 12px;
  padding: 0 0 16px;
}

.controlGroup + .controlGroup {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.field,
.checkboxField {
  display: grid;
  gap: 8px;
}

.checkboxField {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.fieldLabelRow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.84rem;
}

.fieldValue {
  color: var(--soft);
  font-family: var(--mono);
}

.checkboxField input[type="checkbox"],
#controlsContent input[type="checkbox"],
.inspector input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-strong);
}

#controlsContent label,
.inspector label {
  color: var(--muted);
  font-size: 0.85rem;
}

#controlsContent input[type="range"],
.inspector input[type="range"] {
  width: 100%;
}

#frameOutput {
  min-height: 180px;
  background: #04090d;
  color: #87f5d3;
  font-size: 0.75rem;
}

.details-scroll #frameOutput {
  min-height: 220px;
}

.snapshot-bar {
  justify-content: flex-end;
  padding: 6px 0 12px;
}

.preview-pane {
  min-width: 0;
}

.preview-card {
  height: 100%;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

#previewCard:fullscreen {
  width: 100vw;
  height: 100vh;
  max-width: none;
  border-radius: 0;
  border: 0;
  background: #04090d;
}

#previewCard:fullscreen::backdrop {
  background: #04090d;
}

#previewCard:fullscreen .preview-frame {
  min-height: 0;
}

#previewCard:fullscreen .stage-area {
  height: 100%;
  border: 0;
}

#previewCard:fullscreen .canvas-wrap {
  padding: clamp(20px, 3vw, 40px);
}

#previewCard:fullscreen #stageCanvas {
  max-width: calc(100vw - 48px);
  max-height: calc(100vh - 160px);
}

.card-head,
.presets-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}

.card-head h1,
.card-head h2,
.presets-modal-title {
  margin: 0;
  font-size: 1.08rem;
  font-weight: 700;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.preview-head {
  align-items: center;
}

.preview-head-side {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.preview-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.preview-frame {
  min-height: 0;
  padding: 0;
}

.stage-area {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  background: none;
}

#bgCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
}

.canvas-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(16px, 3vw, 34px);
}

#stageCanvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.35));
}

.stats-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.86rem;
}

.stats-main,
.stats-inline {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.stats-title {
  font-weight: 700;
  color: var(--text);
}

.stats-status {
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(115, 240, 199, 0.12);
  color: var(--accent);
  font-weight: 700;
}

.panel-tab,
#settingsBackdrop,
#settingsToggleBtn,
#openSettingsInlineBtn,
#settingsCloseBtn,
#settingsDrawer {
  display: none !important;
}

.presets-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background: rgba(5, 8, 11, 0.76);
  backdrop-filter: blur(8px);
}

.presets-modal {
  width: min(72rem, 100%);
  max-height: min(88vh, 900px);
  display: flex;
  flex-direction: column;
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.presets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  padding: 18px;
  overflow: auto;
}

.panel-close {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--soft);
  cursor: pointer;
}

.panel-close:hover {
  background: rgba(255, 255, 255, 0.06);
}

.preset-card {
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.preset-card-body {
  display: grid;
  gap: 6px;
}

.preset-card-name {
  font-size: 1rem;
  font-weight: 700;
}

.preset-card-tags {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.preset-card-saved {
  border-color: rgba(115, 240, 199, 0.24);
}

.preset-card-swatches,
.preset-swatch-row {
  display: flex;
  gap: 8px;
}

.preset-swatch {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.embed-modal {
  width: min(52rem, 100%);
}

.embed-modal-body {
  display: grid;
  gap: 14px;
  padding: 18px;
  overflow: auto;
}

.embed-step {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 20px;
}

.embed-step-label {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.embed-code-block {
  margin: 0;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(6, 10, 14, 0.82);
  overflow: auto;
  font-family: var(--mono);
  line-height: 1.55;
}

.embed-json-textarea {
  min-height: 220px;
}

.embed-copy-btn {
  justify-self: start;
}

.embed-inline-row {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.embed-select {
  min-width: 220px;
  max-width: 100%;
}

#jsonTestBtn {
  border-color: rgba(115, 240, 199, 0.4);
  color: var(--accent);
}

#jsonTestBtn:hover {
  color: #fff;
  border-color: rgba(115, 240, 199, 0.68);
  background: rgba(115, 240, 199, 0.12);
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 999px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

@media (max-width: 1260px) {
  html, body {
    overflow: auto;
  }

  .app-shell {
    height: auto;
    min-height: 100vh;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .preview-pane {
    min-height: 62vh;
  }

  .editor-rail {
    grid-template-rows: auto auto auto auto;
  }

  .accordion-card.is-open {
    min-height: 320px;
  }

  .preview-card {
    min-height: 70vh;
  }
}

@media (max-width: 840px) {
  .app-shell {
    padding: 12px;
    gap: 12px;
  }

  .app-header,
  .card-head,
  .presets-modal-header,
  .subject-panel,
  .panel-body,
  .preview-frame,
  .stats-bar,
  .embed-modal-body,
  .presets-grid,
  .accordion-trigger,
  .subject-card-head,
  .subject-control-grid,
  .preset-panel-body {
    padding-left: 14px;
    padding-right: 14px;
  }

  .app-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-actions,
  .card-head {
    width: 100%;
    justify-content: flex-start;
  }

  .card-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-head-actions,
  .subject-action-row,
  .preset-action-row,
  .stats-bar,
  .stats-main,
  .stats-inline {
    width: 100%;
    justify-content: flex-start;
  }

  .subject-control-grid {
    grid-template-columns: 1fr;
  }

  .presets-modal-overlay {
    padding: 10px;
  }

  .presets-grid {
    grid-template-columns: 1fr;
  }
}