:root {
  --bg: #121114;
  --bg-soft: #1b1a20;
  --panel: rgba(23, 24, 30, 0.88);
  --panel-strong: #191a21;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f0ea;
  --muted: #b5b1ab;
  --accent: #ff8c42;
  --accent-soft: #ffd7b4;
  --teal: #69d2c0;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.32);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --page-background:
    radial-gradient(circle at top left, rgba(255, 140, 66, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(105, 210, 192, 0.16), transparent 24%),
    linear-gradient(180deg, #111014 0%, #16171d 45%, #0f1014 100%);
  --surface-soft: rgba(255, 255, 255, 0.03);
  --surface-strong: rgba(255, 255, 255, 0.04);
  --surface-emphasis: rgba(255, 255, 255, 0.08);
  --canvas-fill: #151821;
  --canvas-checker-a: #14161c;
  --canvas-checker-b: #1c1e26;
  --empty-cell-color: #101116;
  --glow-left: rgba(255, 140, 66, 0.18);
  --glow-right: rgba(105, 210, 192, 0.18);
}

:root[data-theme="light"] {
  --bg: #f6f1e8;
  --bg-soft: #ebe4d8;
  --panel: rgba(255, 252, 247, 0.9);
  --panel-strong: #fffaf3;
  --line: rgba(51, 39, 24, 0.12);
  --line-strong: rgba(51, 39, 24, 0.2);
  --text: #251f17;
  --muted: #716556;
  --shadow: 0 24px 60px rgba(68, 43, 14, 0.12);
  --page-background:
    radial-gradient(circle at top left, rgba(255, 140, 66, 0.14), transparent 34%),
    radial-gradient(circle at top right, rgba(105, 210, 192, 0.12), transparent 26%),
    linear-gradient(180deg, #f8f4ee 0%, #efe6d8 46%, #f7f2ea 100%);
  --surface-soft: rgba(77, 55, 26, 0.05);
  --surface-strong: rgba(77, 55, 26, 0.07);
  --surface-emphasis: rgba(77, 55, 26, 0.1);
  --canvas-fill: #f3ecdf;
  --canvas-checker-a: #f7f1e6;
  --canvas-checker-b: #ece1cf;
  --empty-cell-color: #ddd2bc;
  --glow-left: rgba(255, 140, 66, 0.12);
  --glow-right: rgba(105, 210, 192, 0.1);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text);
  background: var(--page-background);
}

h1,
h2,
h3,
button,
label,
.stat-card strong,
.eyebrow,
.hero-stat strong {
  font-family: "Space Grotesk", sans-serif;
}

.page-glow {
  position: fixed;
  width: 32rem;
  height: 32rem;
  filter: blur(80px);
  opacity: 0.45;
  z-index: -1;
  pointer-events: none;
}

.page-glow-left {
  left: -8rem;
  top: 2rem;
  background: var(--glow-left);
}

.page-glow-right {
  right: -10rem;
  top: 10rem;
  background: var(--glow-right);
}

.shell {
  max-width: 1520px;
  margin: 0 auto;
  padding: 28px;
}

.mobile-nav {
  display: none;
}

.mobile-view-hidden {
  display: none !important;
}

.mobile-live-preview-card {
  display: none;
}

.hero,
.panel {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  border-radius: 32px;
  padding: 32px;
  margin-bottom: 20px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--accent-soft);
}

.hero h1 {
  margin: 12px 0 10px;
  font-size: clamp(2.4rem, 4vw, 4.6rem);
  line-height: 0.96;
  max-width: 8ch;
}

.hero p {
  margin: 0;
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 12px;
  min-width: 280px;
}

.hero-side {
  display: grid;
  gap: 14px;
  justify-items: end;
  align-self: stretch;
}

.hero-stat {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
  padding: 16px;
}

.hero-theme {
  display: grid;
  gap: 8px;
  min-width: 160px;
  justify-items: end;
}

.hero-theme-label {
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.9rem;
  color: var(--muted);
}

.theme-toggle {
  display: inline-grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-soft);
}

.theme-toggle-button {
  min-width: 88px;
  border: 0;
  border-radius: 999px;
  padding: 10px 14px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
}

.theme-toggle-button-active {
  color: #171214;
  background: linear-gradient(135deg, #ffb062 0%, #ff8c42 100%);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero-stat strong,
.stat-card strong {
  display: block;
  font-size: 1.4rem;
}

.hero-stat span,
.stat-card span,
.preview-head span,
.helper,
.palette-name,
.instruction-row-meta {
  color: var(--muted);
}

.layout {
  display: grid;
  grid-template-columns: minmax(420px, 540px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.controls-panel,
.output-panel {
  min-width: 0;
}

.layout.layout-setup-collapsed {
  grid-template-columns: minmax(0, 1fr);
}

.layout.layout-setup-collapsed .controls-panel {
  display: none;
}

.layout.layout-setup-collapsed .preview-grid {
  grid-template-columns: minmax(240px, 0.62fr) minmax(520px, 1.38fr);
}

.layout.layout-setup-collapsed .preview-grid.preview-grid-single {
  grid-template-columns: minmax(0, 1fr);
}

@media (min-width: 721px) {
  .controls-panel {
    position: sticky;
    top: 20px;
    max-height: calc(100vh - 40px);
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
  }

  .palette-grid {
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }
}

.panel {
  border-radius: var(--radius-xl);
  padding: 24px;
}

.panel-heading h2,
.panel-heading h3 {
  margin: 0;
}

.panel-heading p {
  margin: 6px 0 0;
  color: var(--muted);
}

.panel-heading-split {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.control-group {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.compact-control {
  margin-top: 0;
}

.background-tools-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.background-tools-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.background-tools-actions .button {
  min-height: 42px;
  padding-inline: 14px;
}

.background-pick-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 24px;
}

.background-swatch {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background:
    linear-gradient(
      45deg,
      var(--canvas-checker-a) 25%,
      var(--canvas-checker-b) 25%,
      var(--canvas-checker-b) 50%,
      var(--canvas-checker-a) 50%,
      var(--canvas-checker-a) 75%,
      var(--canvas-checker-b) 75%
    );
  background-size: 10px 10px;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.compact-row {
  margin-top: 16px;
}

label {
  font-size: 0.95rem;
}

input,
select,
button {
  font: inherit;
}

input[type="file"],
input[type="number"],
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  background: var(--surface-strong);
}

input[type="text"],
input[type="color"],
input[type="range"] {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  background: var(--surface-strong);
}

input[type="color"] {
  min-height: 48px;
  padding: 6px;
}

input[type="range"] {
  padding: 8px 0;
  border: 0;
  background: transparent;
}

input:focus,
select:focus,
button:focus-visible {
  outline: 2px solid rgba(255, 140, 66, 0.5);
  outline-offset: 2px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: var(--surface-soft);
}

.toggle input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.panel-actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.button,
.text-button {
  border: 0;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

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

.button {
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
}

.button-primary {
  color: #171214;
  background: linear-gradient(135deg, #ffb062 0%, #ff8c42 100%);
}

.button-secondary {
  color: var(--text);
  background: var(--surface-emphasis);
  border: 1px solid var(--line);
}

.text-button {
  padding: 0;
  color: var(--teal);
  background: transparent;
  font-weight: 700;
}

.palette-section {
  margin-top: 28px;
}

.custom-color-card {
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.custom-color-card .button {
  margin-top: 12px;
}

.palette-heading {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: end;
}

.palette-heading-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}

.palette-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 18px;
  max-height: 620px;
  overflow: auto;
  padding-right: 4px;
}

.palette-chip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px 12px;
  background: var(--surface-soft);
}

.palette-chip-low {
  border-color: rgba(255, 176, 98, 0.45);
  background: rgba(255, 176, 98, 0.08);
}

.palette-chip.disabled {
  opacity: 0.45;
}

.palette-main input[type="checkbox"],
.palette-inventory input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.palette-main {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 10px;
  align-items: center;
  min-width: 0;
}

.swatch {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.16);
}

.palette-name {
  font-size: 0.88rem;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.palette-inventory {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-areas:
    "code"
    "owned"
    "toggle"
    "status";
  gap: 8px;
  align-items: center;
  min-width: 0;
}

.palette-inventory-input {
  width: 96px;
  min-width: 96px;
}

.palette-code-input {
  width: 132px;
  min-width: 132px;
  text-transform: uppercase;
}

.palette-inventory .inventory-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  grid-area: owned;
}

.palette-inventory .palette-code-row {
  grid-area: code;
}

.palette-inventory .inventory-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  grid-area: toggle;
}

.palette-inventory .inventory-status {
  grid-area: status;
  margin-top: 2px;
  text-align: left;
  white-space: normal;
  overflow-wrap: anywhere;
}

.stats-grid,
.results-grid,
.preview-grid {
  display: grid;
  gap: 14px;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 20px;
}

.stat-card,
.preview-card,
.result-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--surface-soft);
}

.stat-card {
  padding: 16px;
}

.preview-grid {
  grid-template-columns: minmax(260px, 0.78fr) minmax(420px, 1.22fr);
  margin-top: 16px;
}

.preview-grid.preview-grid-single {
  grid-template-columns: minmax(0, 1fr);
}

.preview-card,
.result-card {
  padding: 16px;
}

.setup-source-card {
  margin-top: 18px;
}

.setup-source-card .source-canvas {
  max-height: 220px;
}

.setup-section {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.setup-section[open] {
  background: rgba(255, 255, 255, 0.035);
}

.setup-section-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 15px 16px;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
}

.setup-section-summary::-webkit-details-marker {
  display: none;
}

.setup-section-summary::after {
  content: "+";
  color: var(--muted);
  font-size: 1rem;
  line-height: 1;
}

.setup-section[open] .setup-section-summary::after {
  content: "-";
}

.setup-section-body {
  padding: 0 16px 16px;
}

.setup-section-body > .control-group:first-child,
.setup-section-body > .grid:first-child,
.setup-section-body > .preview-actions:first-child {
  margin-top: 0;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 12px;
}

.preview-head h3 {
  margin: 0;
}

canvas {
  width: 100%;
  max-height: 560px;
  display: block;
  background:
    linear-gradient(
      45deg,
      var(--canvas-checker-a) 25%,
      var(--canvas-checker-b) 25%,
      var(--canvas-checker-b) 50%,
      var(--canvas-checker-a) 50%,
      var(--canvas-checker-a) 75%,
      var(--canvas-checker-b) 75%
    );
  background-size: 22px 22px;
  border-radius: 14px;
  border: 1px solid var(--line);
}

.source-canvas {
  cursor: default;
  touch-action: pan-y;
}

.source-canvas.background-picker-active {
  cursor: crosshair;
}

.source-canvas.crop-editing-active {
  cursor: crosshair;
  touch-action: none;
}

.crop-mode-active {
  color: var(--accent);
}

.crop-control-button {
  min-height: 44px;
}

.crop-tool-action[hidden] {
  display: none;
}

.crop-tool-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 8, 12, 0.72);
  backdrop-filter: blur(12px);
  z-index: 100;
}

#sourcePreviewCard {
  position: relative;
}

#sourcePreviewCard.crop-tool-open {
  border-color: rgba(255, 176, 98, 0.45);
  background: var(--panel);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.34);
}

#sourcePreviewCard.crop-tool-open canvas {
  max-height: 72vh;
}

.setup-secondary-actions {
  margin-top: 18px;
}

.pattern-actions {
  margin-top: 12px;
}

.desktop-toggle-button {
  white-space: nowrap;
}

.mobile-live-preview-head {
  margin-bottom: 10px;
}

.mobile-preview-toggle {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.mobile-preview-toggle-button {
  flex: 1 1 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--surface-strong);
  color: var(--muted);
  font-weight: 700;
}

.mobile-preview-toggle-button-active {
  color: #171214;
  border-color: transparent;
  background: linear-gradient(135deg, #ffb062 0%, #ff8c42 100%);
}

.canvas-tools {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-top: 12px;
  flex-wrap: wrap;
}

.preview-actions {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.export-format-picker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.9rem;
}

.export-format-picker select {
  min-width: 78px;
  min-height: 32px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
  padding: 4px 8px;
}

.inline-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 0.9rem;
}

.inline-toggle input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.pattern-editor-toolbar {
  margin-top: 12px;
}

.pattern-editor-actions {
  gap: 8px;
  width: 100%;
}

.compact-tool-button {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 10px;
  border-radius: 12px;
  justify-content: center;
  font-size: 0.86rem;
  line-height: 1;
}

.compact-tool-button-wide {
  min-width: 54px;
}

.edit-mode-active {
  color: #171214;
  border-color: transparent;
  background: linear-gradient(135deg, #ffb062 0%, #ff8c42 100%);
}

.pattern-edit-status {
  margin-top: 10px;
}

.edit-color-strip {
  display: flex;
  gap: 10px;
  margin: 12px 0;
  overflow-x: auto;
  padding-bottom: 4px;
}

.edit-color-strip.empty-state {
  min-height: 0;
  padding: 8px 0 4px;
}

.edit-color-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--surface-soft);
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}

.edit-color-chip-selected {
  border-color: rgba(255, 176, 98, 0.55);
  background: rgba(255, 176, 98, 0.14);
  box-shadow: inset 0 0 0 1px rgba(255, 176, 98, 0.18);
}

.edit-color-swatch {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.14);
}

.pattern-canvas-shell {
  min-height: 280px;
}

#patternPreviewCard canvas {
  max-height: 760px;
}

.pattern-canvas-shell.pattern-canvas-shell-scrolling {
  overflow: auto;
  max-height: min(76vh, 920px);
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(
      45deg,
      var(--canvas-checker-a) 25%,
      var(--canvas-checker-b) 25%,
      var(--canvas-checker-b) 50%,
      var(--canvas-checker-a) 50%,
      var(--canvas-checker-a) 75%,
      var(--canvas-checker-b) 75%
    );
  background-size: 22px 22px;
}

.pattern-canvas-shell.pattern-canvas-shell-scrolling canvas {
  width: auto;
  max-width: none;
  max-height: none;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.pattern-canvas-shell.pattern-canvas-shell-empty {
  display: grid;
  place-items: center;
  min-height: 240px;
  height: 240px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    linear-gradient(
      45deg,
      var(--canvas-checker-a) 25%,
      var(--canvas-checker-b) 25%,
      var(--canvas-checker-b) 50%,
      var(--canvas-checker-a) 50%,
      var(--canvas-checker-a) 75%,
      var(--canvas-checker-b) 75%
    );
  background-size: 22px 22px;
}

.pattern-empty-state {
  max-width: 26rem;
  padding: 24px;
  text-align: center;
  color: var(--muted);
}

.pattern-card-placeholder {
  min-height: 120px;
  display: grid;
  place-items: center;
  padding: 24px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  color: var(--muted);
  text-align: center;
}

.pattern-canvas-editing {
  cursor: crosshair;
}

.results-grid {
  grid-template-columns: 360px minmax(0, 1fr);
  margin-top: 16px;
}

.legend-list,
.instruction-list {
  display: grid;
  gap: 10px;
  max-height: 640px;
  overflow: auto;
}

.legend-item,
.instruction-row {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px;
  background: var(--surface-soft);
}

.legend-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: start;
}

.legend-item-low {
  border-color: rgba(255, 176, 98, 0.45);
  background: rgba(255, 176, 98, 0.08);
}

.legend-item-selected {
  border-color: rgba(255, 176, 98, 0.55);
  box-shadow: inset 0 0 0 1px rgba(255, 176, 98, 0.18);
}

.legend-item strong,
.row-pattern code {
  font-family: "Space Grotesk", sans-serif;
}

.legend-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.legend-count {
  color: var(--accent-soft);
  font-weight: 700;
}

.legend-note {
  font-size: 0.82rem;
  color: var(--muted);
}

.legend-side {
  display: grid;
  gap: 8px;
  justify-items: end;
  min-width: 152px;
}

.inventory-row,
.inventory-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 0.84rem;
}

.inventory-row span,
.inventory-toggle span {
  white-space: nowrap;
}

.inventory-input {
  width: 88px;
  padding: 6px 8px;
  border-radius: 10px;
  border: 1px solid var(--line-strong);
  background: var(--surface-strong);
  color: var(--text);
}

.inventory-checkbox {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.inventory-status {
  font-size: 0.82rem;
  font-weight: 700;
}

.inventory-neutral {
  color: var(--muted);
}

.inventory-ok {
  color: var(--teal);
}

.inventory-short {
  color: #ffb062;
}

.instruction-row {
  display: grid;
  gap: 8px;
}

.instruction-row-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.row-pattern {
  overflow-x: auto;
  padding-bottom: 2px;
}

.row-pattern code {
  color: var(--text);
  white-space: nowrap;
  font-size: 0.86rem;
}

.empty-state {
  color: var(--muted);
  min-height: 140px;
  place-content: center;
}

@media (max-width: 1180px) {
  .layout,
  .preview-grid,
  .results-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

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

  .hero h1 {
    max-width: none;
  }

  .hero-stats {
    width: 100%;
  }
}

@media (max-width: 720px) {
  body.mobile-nav-enabled {
    padding-bottom: calc(92px + env(safe-area-inset-bottom, 0px));
  }

  .shell {
    padding: 16px;
  }

  .hero,
  .panel {
    padding: 18px;
  }

  .grid.two,
  .palette-grid {
    grid-template-columns: 1fr;
  }

  .setup-source-card .source-canvas {
    max-height: 280px;
  }

  .panel-heading-split {
    display: block;
  }

  .desktop-toggle-button {
    display: none;
  }

  .background-tools-actions {
    flex-direction: column;
  }

  .background-tools-card {
    display: none;
  }

  .panel-actions {
    flex-direction: column;
  }

  .mobile-live-preview-card {
    position: sticky;
    top: 12px;
    z-index: 4;
    display: block;
    margin-top: 18px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    background: var(--panel);
    backdrop-filter: blur(12px);
  }

  .canvas-tools .preview-actions {
    width: 100%;
  }

  .pattern-editor-toolbar {
    margin-top: 10px;
  }

  .pattern-editor-toolbar .preview-actions {
    width: 100%;
  }

  .pattern-editor-actions {
    gap: 6px;
  }

  .compact-tool-button {
    min-height: 34px;
    padding: 6px 8px;
  }

  .pattern-canvas-shell {
    min-height: 220px;
  }

  .crop-control-button,
  .setup-secondary-actions .button {
    flex: 1 1 0;
    justify-content: center;
  }

  #sourcePreviewCard.crop-tool-open {
    position: static;
    transform: none;
    width: auto;
    max-height: none;
    border-radius: 18px;
    margin-top: 0;
  }

  #sourcePreviewCard.crop-tool-open canvas {
    max-height: 72vh;
  }

  #sourcePreviewCard.crop-tool-open .canvas-tools {
    position: sticky;
    bottom: 0;
    margin-top: 0;
    padding-top: 12px;
    background: linear-gradient(180deg, rgba(25, 26, 33, 0), var(--panel) 36%);
  }

  .mobile-nav {
    position: fixed;
    left: 16px;
    right: 16px;
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: var(--panel);
    backdrop-filter: blur(18px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.36);
    z-index: 50;
  }

  .mobile-nav-button {
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 12px 10px;
    background: var(--surface-strong);
    color: var(--muted);
    font-weight: 700;
  }

  .mobile-nav-button-active {
    color: #171214;
    border-color: transparent;
    background: linear-gradient(135deg, #ffb062 0%, #ff8c42 100%);
  }

  .legend-item {
    grid-template-columns: auto 1fr;
  }

  .legend-side {
    grid-column: 1 / -1;
    justify-items: start;
  }
}