:root {
  --bg: #f6efe4;
  --bg-soft: #f9f5ed;
  --surface: rgba(255, 251, 245, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.88);
  --surface-dark: #1f2d2b;
  --text: #1d2928;
  --muted: #5d6a67;
  --border: rgba(58, 74, 69, 0.16);
  --accent: #bf5f2f;
  --accent-deep: #8d3f19;
  --accent-soft: rgba(191, 95, 47, 0.1);
  --success: #2b7a54;
  --error: #b53b2c;
  --shadow: 0 24px 80px rgba(70, 47, 23, 0.12);
  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  width: 100%;
  overflow-x: clip;
  overflow-y: visible;
}

body {
  font-family: "Avenir Next", "Trebuchet MS", "Segoe UI Variable", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(239, 181, 110, 0.34), transparent 30%),
    radial-gradient(circle at top right, rgba(111, 152, 141, 0.24), transparent 34%),
    linear-gradient(180deg, #f6efe4 0%, #faf6ef 46%, #efe4d7 100%);
}

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

.page-shell {
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 112px;
  overflow: visible;
}

.desktop-layout,
.mobile-layout {
  display: block;
}

.mobile-layout.hidden,
.desktop-layout.hidden {
  display: none;
}

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

.hero {
  display: grid;
  gap: 12px;
  padding: 16px 20px;
  border-radius: 24px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1;
  max-width: 16ch;
}

.hero-copy {
  display: grid;
  gap: 8px;
}

.hero-text,
.section-note,
.chart-summary p {
  color: var(--muted);
  line-height: 1.6;
}

.template-actions,
.output-head,
.subpanel-head {
  display: flex;
  align-items: center;
  gap: 12px;
}

.workspace {
  margin-top: 12px;
  display: grid;
  gap: 24px;
}

.focus-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  border: 1px solid rgba(191, 95, 47, 0.18);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.92), rgba(248, 238, 227, 0.9)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.07), rgba(111, 152, 141, 0.05));
  box-shadow: 0 20px 52px rgba(70, 47, 23, 0.1);
}

.focus-banner-copy {
  display: grid;
  gap: 6px;
}

.focus-banner-copy h2 {
  margin: 0;
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  line-height: 1.1;
}

.focus-banner-note {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.6;
}

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

.mobile-layout {
  display: grid;
  gap: 12px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-preview-sticky {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-self: start;
  padding: 0 0 10px;
  background:
    linear-gradient(180deg, rgba(246, 239, 228, 0.98) 0%, rgba(246, 239, 228, 0.95) 82%, rgba(246, 239, 228, 0) 100%);
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-card {
  border: 1px solid var(--border);
  background: rgba(255, 251, 245, 0.86);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 48px rgba(70, 47, 23, 0.1);
  border-radius: 24px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-preview-card {
  padding: 14px 14px 12px;
}

.mobile-tabs-card {
  padding: 10px;
}

.mobile-config-card {
  min-height: 0;
  padding: 16px;
}

.mobile-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.mobile-section-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text);
}

.mobile-section-chip {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(191, 95, 47, 0.12);
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.mobile-preview-head-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.mobile-copy-button {
  border: 0;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(191, 95, 47, 0.24);
  cursor: pointer;
}

.mobile-bottom-bar {
  display: none;
}

.desktop-bottom-bar {
  position: fixed;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  z-index: 40;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  width: min(600px, calc(100vw - 48px));
  padding: 14px 16px;
  border-radius: 24px;
  border: 1px solid rgba(191, 95, 47, 0.16);
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.96), rgba(249, 240, 229, 0.94)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.08), rgba(111, 152, 141, 0.05));
  box-shadow: 0 20px 48px rgba(70, 47, 23, 0.18);
  backdrop-filter: blur(18px);
}

.desktop-bottom-bar-copy {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.desktop-bottom-bar-title,
.desktop-bottom-bar-note {
  margin: 0;
}

.desktop-bottom-bar-title {
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text);
}

.desktop-bottom-bar-note {
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--muted);
}

.desktop-bottom-copy-button {
  min-height: 46px;
  padding: 12px 18px;
  background: linear-gradient(135deg, #c96d39, #a94a25);
  border-color: transparent;
  color: #fff9f2;
  font-size: 0.9rem;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(169, 74, 37, 0.22);
}

.mobile-secondary-button {
  border: 1px solid rgba(58, 74, 69, 0.14);
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  cursor: pointer;
}

.mobile-copy-hint {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.mobile-preview-config-panel {
  margin-top: 4px;
  padding: 8px 10px;
  border-radius: 16px;
  border: 1px solid rgba(58, 74, 69, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(249, 243, 235, 0.94)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.05), rgba(111, 152, 141, 0.04));
}

.mobile-preview-toolbar {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-preview-toolbar-head {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.mobile-preview-toolbar-title {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8d3f19;
  flex: none;
}

.mobile-preview-toolbar-note {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(141, 63, 25, 0.08);
  color: #8d3f19;
  font-size: 0.66rem;
  font-weight: 700;
  line-height: 1.2;
  flex: none;
}

.mobile-preview-toolbar-rail,
.mobile-preview-toolbar-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.mobile-preview-toolbar-rail {
  min-width: 100%;
  padding-right: 8px;
}

.mobile-preview-toolbar-group-title {
  font-size: 0.68rem;
  font-weight: 800;
  color: #8d3f19;
  white-space: nowrap;
  flex: none;
}

.mobile-preview-config-scroll,
.mobile-tabs-scroll,
.mobile-section-tabs-scroll {
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-preview-config-scroll::-webkit-scrollbar,
.mobile-tabs-scroll::-webkit-scrollbar,
.mobile-section-tabs-scroll::-webkit-scrollbar {
  display: none;
}

.mobile-preview-config-row,
.mobile-tabs-row,
.mobile-section-tabs-row {
  display: inline-flex;
  gap: 8px;
  min-width: 100%;
  padding-right: 8px;
}

.mobile-preview-config-buttons {
  display: inline-flex;
  flex-wrap: nowrap;
  gap: 4px;
  padding: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(58, 74, 69, 0.08);
}

.mobile-preview-config-button,
.mobile-chart-tab,
.mobile-section-tab {
  border: 1px solid rgba(58, 74, 69, 0.12);
  color: #465452;
  font-weight: 700;
  text-align: center;
  white-space: nowrap;
  cursor: pointer;
}

.mobile-preview-config-button {
  min-width: 68px;
  padding: 5px 14px;
  border-radius: 999px;
  background: transparent;
  font-size: 0.7rem;
  line-height: 1.1;
  box-shadow: none;
}

.mobile-preview-config-button.active {
  border-color: rgba(169, 74, 37, 0.22);
  background: linear-gradient(135deg, #c86a36, #a94a25);
  color: #fffaf3;
  box-shadow: 0 4px 10px rgba(169, 74, 37, 0.16);
}

.mobile-chart-tab {
  min-width: 84px;
  padding: 12px 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 0.92rem;
}

.mobile-chart-tab.active {
  border-color: rgba(191, 95, 47, 0.48);
  background: linear-gradient(180deg, rgba(255, 249, 241, 0.96), rgba(248, 230, 212, 0.96));
  color: var(--accent-deep);
}

.mobile-section-tabs-shell {
  position: relative;
  width: 100%;
}

.mobile-section-tab {
  min-width: 82px;
  padding: 10px 15px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.68);
  font-size: 0.84rem;
}

.mobile-section-tab.active {
  border-color: rgba(191, 95, 47, 0.42);
  background: rgba(248, 230, 212, 0.96);
  color: var(--accent-deep);
}

.mobile-preview-stage-shell {
  margin-top: 10px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-bottom: 2px;
}

.mobile-preview-canvas {
  min-width: 0;
  flex: none;
}

.mobile-config-panel-scroll {
  margin-top: 14px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow-x: hidden;
}

.mobile-form-section {
  margin-top: 0;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-form-section-title {
  font-size: 0.98rem;
  font-weight: 800;
  color: #8d3f19;
}

.mobile-form-section-help {
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.mobile-field-grid {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.mobile-subgroup {
  width: 100%;
  min-width: 0;
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.46);
  border: 1px solid rgba(58, 74, 69, 0.08);
}

.mobile-subgroup + .mobile-subgroup {
  margin-top: 2px;
}

.mobile-subgroup-head {
  display: grid;
  gap: 6px;
}

.mobile-subgroup-title {
  font-size: 0.9rem;
  font-weight: 800;
  color: #8d3f19;
}

.mobile-subgroup-help {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.mobile-subgroup > .mobile-field-grid {
  margin-top: 12px;
}

.mobile-field-card {
  width: calc((100% - 12px) / 2);
  min-width: 0;
  padding: 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(58, 74, 69, 0.1);
}

.mobile-field-card.mobile-field-card-wide {
  width: 100%;
}

.mobile-field-card > .field {
  gap: 10px;
}

.mobile-field-card > .field > span,
.mobile-field-card > .field .field-label-row > span {
  margin: 0;
  font-size: 0.86rem;
  font-weight: 700;
  color: #32413f;
}

.mobile-field-card .field input,
.mobile-field-card .field select,
.mobile-field-card .field textarea,
.mobile-field-card .background-color-input,
.mobile-field-card .palette-color-input {
  border-radius: 15px;
  border: 1px solid rgba(58, 74, 69, 0.12);
  background: #ffffff;
  min-height: 44px;
  padding: 10px 12px;
}

.mobile-field-card .field input[type="color"],
.mobile-field-card .background-color-input,
.mobile-field-card .palette-color-input {
  padding: 4px;
}

.mobile-field-card .field textarea {
  min-height: 96px;
}

.mobile-field-card .palette-customizer,
.mobile-field-card .background-customizer {
  padding: 12px;
  border-radius: 15px;
  border: 1px dashed rgba(58, 74, 69, 0.18);
  background: rgba(255, 255, 255, 0.72);
}

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

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
  margin-bottom: 20px;
}

.section-heading h2,
.subpanel h3,
.output-head h4 {
  margin: 0;
}

.chart-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chart-card {
  appearance: none;
  border: 1px solid rgba(58, 74, 69, 0.14);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  padding: 10px 14px;
  text-align: center;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.chart-card:hover,
.chart-card:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(191, 95, 47, 0.36);
  box-shadow: 0 16px 32px rgba(94, 72, 37, 0.14);
  outline: none;
}

.chart-card.active {
  border-color: rgba(191, 95, 47, 0.62);
  background: linear-gradient(180deg, rgba(255, 249, 241, 0.96), rgba(248, 230, 212, 0.95));
  box-shadow: 0 10px 18px rgba(94, 72, 37, 0.12);
}

.chart-card-head {
  display: block;
  margin-top: 0;
}

.chart-card-title {
  font-size: 0.95rem;
  font-weight: 800;
}

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

.chart-card .pill-row {
  display: none;
}

.pill,
.ghost-badge,
.status-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.8rem;
  font-weight: 700;
}

.pill {
  background: rgba(111, 152, 141, 0.14);
  color: #2b5f56;
}

.ghost-badge {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.status-badge {
  background: rgba(43, 122, 84, 0.14);
  color: var(--success);
}

.status-badge.error {
  background: rgba(181, 59, 44, 0.12);
  color: var(--error);
}

.config-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(580px, 1.04fr);
  gap: 20px;
  align-items: start;
}

.preview-panel {
  overflow: hidden;
  display: grid;
  gap: 14px;
}

.preview-panel .subpanel-head {
  align-items: center;
  justify-content: space-between;
  padding-bottom: 2px;
}

.preview-panel .subpanel-head h3 {
  font-size: 1.02rem;
  color: var(--text);
}

.completion-card,
.preview-copy-panel,
.dual-axis-preview-controls,
.preview-stage-panel {
  border-radius: 18px;
  border: 1px solid rgba(58, 74, 69, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.completion-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding: 16px 18px;
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.94), rgba(249, 240, 229, 0.92)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.08), rgba(111, 152, 141, 0.05));
  border-color: rgba(191, 95, 47, 0.14);
}

.completion-card-copy {
  display: grid;
  gap: 4px;
}

.completion-card-copy h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text);
}

.completion-card-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.completion-card-eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.completion-card-button {
  width: 100%;
  min-height: 46px;
  padding: 12px 18px;
  background: linear-gradient(135deg, #c96d39, #a94a25);
  border-color: transparent;
  color: #fff9f2;
  font-size: 0.92rem;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(169, 74, 37, 0.22);
}

.preview-copy-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 16px 18px;
  background:
    linear-gradient(180deg, rgba(255, 252, 247, 0.94), rgba(249, 240, 229, 0.92)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.08), rgba(111, 152, 141, 0.05));
  border-color: rgba(191, 95, 47, 0.14);
}

.preview-copy-button {
  align-self: center;
  min-height: 44px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #c96d39, #a94a25);
  border-color: transparent;
  color: #fff9f2;
  font-size: 0.9rem;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(169, 74, 37, 0.22);
}

.preview-copy-note {
  display: grid;
  gap: 4px;
  text-align: left;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.preview-copy-eyebrow {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.preview-copy-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text);
}

.preview-copy-note p {
  margin: 0;
}

.dual-axis-preview-controls {
  display: grid;
  gap: 14px;
  padding: 14px 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(248, 240, 229, 0.8)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.05), rgba(111, 152, 141, 0.06));
}

.dual-axis-preview-head {
  display: grid;
  gap: 4px;
}

.dual-axis-preview-title {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text);
}

.dual-axis-preview-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.dual-axis-preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.dual-axis-preview-control {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(58, 74, 69, 0.1);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.72);
}

.dual-axis-preview-control-wide {
  grid-column: 1 / -1;
}

.dual-axis-preview-label {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.dual-axis-preview-subsection {
  display: grid;
  gap: 8px;
}

.dual-axis-preview-sublabel {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--muted);
}

.dual-axis-preview-toggle {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.dual-axis-preview-toggle-wrap {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.dual-axis-preview-button {
  border: 1px solid rgba(58, 74, 69, 0.14);
  background: rgba(255, 255, 255, 0.96);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  line-height: 1.2;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.dual-axis-preview-button:hover {
  transform: translateY(-1px);
  border-color: rgba(191, 95, 47, 0.28);
  box-shadow: 0 8px 18px rgba(94, 72, 37, 0.08);
}

.dual-axis-preview-button.active {
  background: linear-gradient(135deg, #c86a36, #a94a25);
  color: #fffaf3;
  border-color: transparent;
  box-shadow: 0 10px 20px rgba(169, 74, 37, 0.18);
}

.preview-stage-panel {
  display: grid;
  gap: 14px;
  background:
    radial-gradient(circle at top left, rgba(239, 181, 110, 0.12), transparent 32%),
    radial-gradient(circle at top right, rgba(111, 152, 141, 0.1), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), rgba(244, 236, 226, 0.9));
}

.preview-stage-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 16px 16px 0;
}

.preview-stage-body {
  padding: 0 0 16px;
}

.preview-stage-title {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.preview-stage-note {
  color: var(--muted);
  font-size: 0.8rem;
}

.preview-canvas {
  width: 650px;
  min-width: 650px;
  height: 360px;
  flex: none;
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(246, 239, 228, 0.96)),
    linear-gradient(135deg, rgba(191, 95, 47, 0.08), rgba(111, 152, 141, 0.08));
  border: 1px solid rgba(58, 74, 69, 0.12);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.7),
    0 18px 36px rgba(94, 72, 37, 0.08);
  transition: border-radius 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.preview-device-stage {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  overflow-x: auto;
  overflow-y: visible;
  width: 100%;
  padding: 0;
}

.config-column,
.output-column {
  display: grid;
  gap: 18px;
  align-content: start;
}

.output-column {
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  overflow: auto;
  padding-right: 6px;
  padding-bottom: 4px;
  scrollbar-gutter: stable;
  overscroll-behavior: contain;
}

.subpanel {
  border-radius: 24px;
  padding: 20px;
}

.foundation-stack {
  display: grid;
  gap: 16px;
}

.foundation-group {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(250, 243, 233, 0.76));
  border: 1px solid rgba(58, 74, 69, 0.08);
}

.foundation-group-head {
  display: grid;
  gap: 4px;
}

.foundation-group-head h4 {
  margin: 0;
  font-size: 0.98rem;
  color: var(--accent-deep);
}

.foundation-group-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.45;
}

.foundation-subgroup {
  display: grid;
  gap: 12px;
  padding: 16px 18px;
  border: 1px solid rgba(58, 74, 69, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
}

.foundation-subgroup + .foundation-subgroup {
  margin-top: 8px;
}

.foundation-subgroup-head {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--accent-deep);
}

.foundation-subgroup p {
  margin: 0;
  color: var(--muted);
  font-size: 0.83rem;
  line-height: 1.45;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

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

.specific-subgroup,
.specific-ungrouped-grid {
  grid-column: 1 / -1;
}

.specific-subgroup {
  display: grid;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(58, 74, 69, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.62);
}

.specific-subgroup + .specific-subgroup,
.specific-ungrouped-grid + .specific-subgroup,
.specific-subgroup + .specific-ungrouped-grid {
  margin-top: 8px;
}

.specific-subgroup-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.specific-group-title {
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.field-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.field span {
  font-size: 0.9rem;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid rgba(58, 74, 69, 0.16);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
  padding: 12px 14px;
}

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

.field textarea {
  resize: vertical;
  min-height: 96px;
}

.palette-hidden-input {
  display: none;
}

.background-hidden-input {
  display: none;
}

.palette-picker {
  display: grid;
  gap: 12px;
}

.background-picker {
  display: grid;
  gap: 12px;
}

.palette-customizer {
  border: 1px dashed rgba(58, 74, 69, 0.18);
  border-radius: 16px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.6);
  display: grid;
  gap: 10px;
}

.background-customizer {
  border: 1px dashed rgba(58, 74, 69, 0.18);
  border-radius: 16px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.6);
  display: grid;
  gap: 10px;
}

.palette-customizer-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.palette-customizer-head-right {
  justify-content: flex-end;
}

.palette-customizer-head .template-actions {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  gap: 8px;
  margin-left: auto;
}

.palette-custom-colors {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.palette-color-input {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(58, 74, 69, 0.16);
  border-radius: var(--radius-md);
  padding: 6px;
  background: rgba(255, 255, 255, 0.92);
  cursor: pointer;
}

.gauge-band-editor {
  gap: 12px;
}

.background-custom-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.background-color-input {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(58, 74, 69, 0.16);
  border-radius: var(--radius-md);
  padding: 6px;
  background: rgba(255, 255, 255, 0.92);
  cursor: pointer;
}

.field-wide {
  grid-column: 1 / -1;
}

.sticky-panel {
  position: static;
}

.output-block + .output-block {
  margin-top: 16px;
}

.output-head {
  justify-content: space-between;
  margin-bottom: 8px;
}

.code-block {
  margin: 0;
  padding: 14px;
  border-radius: 16px;
  background: var(--surface-dark);
  color: #ecf4ef;
  font-family: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  font-size: 0.83rem;
  line-height: 1.55;
  max-height: 320px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.secondary-button {
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 120ms ease, filter 120ms ease;
}

.secondary-button:hover,
.secondary-button:focus-visible {
  transform: translateY(-1px);
  filter: brightness(0.98);
  outline: none;
}

.secondary-button {
  background: rgba(255, 255, 255, 0.78);
  border-color: rgba(58, 74, 69, 0.14);
  color: var(--text);
  padding: 11px 16px;
  font-weight: 700;
}

.secondary-button.small {
  padding: 8px 12px;
  font-size: 0.84rem;
}

.error-box {
  margin-bottom: 14px;
  border-radius: 16px;
  background: rgba(181, 59, 44, 0.12);
  color: var(--error);
  padding: 12px 14px;
  line-height: 1.5;
}

.hidden {
  display: none !important;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%);
  min-width: min(520px, calc(100vw - 32px));
  max-width: min(520px, calc(100vw - 32px));
  padding: 14px 18px;
  border-radius: 18px;
  border: 1px solid rgba(43, 122, 84, 0.24);
  background:
    linear-gradient(180deg, rgba(25, 60, 53, 0.98), rgba(20, 45, 41, 0.98)),
    linear-gradient(135deg, rgba(48, 163, 103, 0.12), rgba(111, 152, 141, 0.08));
  color: #f5f8f6;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.45;
  text-align: center;
  box-shadow: 0 18px 40px rgba(19, 42, 38, 0.28);
  z-index: 60;
}

.toast.toast-success {
  border-color: rgba(68, 201, 129, 0.24);
}

.toast.toast-error {
  border-color: rgba(223, 99, 82, 0.3);
  background:
    linear-gradient(180deg, rgba(92, 33, 25, 0.98), rgba(70, 21, 17, 0.98)),
    linear-gradient(135deg, rgba(223, 99, 82, 0.12), rgba(191, 95, 47, 0.08));
}

@media (max-width: 1180px) {
  .chart-grid {
    gap: 8px;
  }

  .config-layout {
    grid-template-columns: 1fr;
  }

  .output-column {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
    padding-bottom: 0;
  }

  .sticky-panel {
    position: static;
  }
}

@media (orientation: portrait) {
  .page-shell {
    width: 100%;
    padding: 0 0 112px;
  }

  .desktop-layout {
    display: none;
  }

  .mobile-layout {
    display: grid;
  }

  .desktop-bottom-bar {
    display: none;
  }

  .completion-card {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .hero h1 {
    max-width: none;
  }

  .panel,
  .subpanel {
    padding: 18px;
    border-radius: 22px;
  }

  .focus-banner {
    flex-direction: column;
    align-items: stretch;
    padding: 18px;
  }

  .section-heading,
  .subpanel-head,
  .template-actions,
  .output-head {
    flex-direction: column;
    align-items: stretch;
  }

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

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

  .preview-copy-panel {
    grid-template-columns: 1fr;
  }

  .preview-copy-button {
    width: 100%;
  }

  .mobile-bottom-bar {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    z-index: 40;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    padding: 12px 14px;
    border-radius: 22px;
    border: 1px solid rgba(191, 95, 47, 0.16);
    background:
      linear-gradient(180deg, rgba(255, 252, 247, 0.96), rgba(249, 240, 229, 0.94)),
      linear-gradient(135deg, rgba(191, 95, 47, 0.08), rgba(111, 152, 141, 0.05));
    box-shadow: 0 20px 48px rgba(70, 47, 23, 0.18);
    backdrop-filter: blur(18px);
  }

  html[lang^="en"] .mobile-bottom-bar {
    gap: 10px;
    padding: 10px 12px;
  }

  .mobile-bottom-bar-copy {
    display: grid;
    gap: 2px;
    min-width: 0;
  }

  .mobile-bottom-bar-title,
  .mobile-bottom-bar-note {
    margin: 0;
  }

  .mobile-bottom-bar-title {
    font-size: 0.86rem;
    font-weight: 800;
    color: var(--text);
  }

  .mobile-bottom-bar-note {
    font-size: 0.75rem;
    line-height: 1.45;
    color: var(--muted);
  }

  .mobile-bottom-copy-button {
    min-height: 44px;
    padding: 10px 16px;
    box-shadow: 0 10px 22px rgba(191, 95, 47, 0.22);
  }

  html[lang^="en"] .mobile-bottom-copy-button {
    min-height: 38px;
    padding: 8px 14px;
    font-size: 0.76rem;
    box-shadow: 0 8px 18px rgba(191, 95, 47, 0.18);
  }

  .toast {
    bottom: calc(92px + env(safe-area-inset-bottom, 0px));
    min-width: calc(100vw - 24px);
    max-width: calc(100vw - 24px);
    font-size: 0.88rem;
  }

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

  .dual-axis-preview-grid {
    grid-template-columns: 1fr;
  }

  .dual-axis-preview-toggle-wrap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .preview-device-stage {
    justify-content: flex-start;
  }

  .specific-subgroup-grid {
    grid-template-columns: 1fr;
  }
}