:root {
  color-scheme: light;
  --bg: #fbfaf7;
  --text: #161616;
  --muted: #5f625d;
  --link: #006b5f;
  --card: #f3f0e8;
  --accent: #006b5f;
  --accent-soft: #99cfc8;
  --focus: #99cfc8;
  --icon-border: #d9d5cc;
  --icon-shadow: 0 0.35rem 1rem rgba(22, 22, 22, 0.1);
  --map-bg: #ffffff;
  --muscle-fill: #d7d9d3;
  --muscle-stroke: #fbfaf7;
  --muscle-selected: #006b5f;
  --outline-stroke: #b7b4ad;
  --button-text: #ffffff;
  --background: var(--bg);
  --surface: var(--card);
  --accent-dark: #004b43;
  --border: #d9d5cc;
  --control-bg: #ffffff;
  --control-border: #aaa69c;
  --page-padding: 1rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --bg: #101210;
    --text: #f0eee8;
    --muted: #b9b5aa;
    --link: #7ed8cc;
    --card: #1a1d1a;
    --accent: #7ed8cc;
    --accent-soft: #1d4f49;
    --focus: #7ed8cc;
    --icon-border: #454a44;
    --icon-shadow: 0 0 0 1px rgba(126, 216, 204, 0.18), 0 0.45rem 1.5rem rgba(0, 0, 0, 0.55);
    --map-bg: #151815;
    --muscle-fill: #3d443f;
    --muscle-stroke: #101210;
    --muscle-selected: #7ed8cc;
    --outline-stroke: #6d756e;
    --button-text: #07100e;
    --accent-dark: #a6eee5;
    --border: #343932;
    --control-bg: #252a26;
    --control-border: #667068;
  }
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #fbfaf7;
  --text: #161616;
  --muted: #5f625d;
  --link: #006b5f;
  --card: #f3f0e8;
  --accent: #006b5f;
  --accent-soft: #99cfc8;
  --focus: #99cfc8;
  --icon-border: #d9d5cc;
  --icon-shadow: 0 0.35rem 1rem rgba(22, 22, 22, 0.1);
  --map-bg: #ffffff;
  --muscle-fill: #d7d9d3;
  --muscle-stroke: #fbfaf7;
  --muscle-selected: #006b5f;
  --outline-stroke: #b7b4ad;
  --button-text: #ffffff;
  --accent-dark: #004b43;
  --border: #d9d5cc;
  --control-bg: #ffffff;
  --control-border: #aaa69c;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101210;
  --text: #f0eee8;
  --muted: #b9b5aa;
  --link: #7ed8cc;
  --card: #1a1d1a;
  --accent: #7ed8cc;
  --accent-soft: #1d4f49;
  --focus: #7ed8cc;
  --icon-border: #454a44;
  --icon-shadow: 0 0 0 1px rgba(126, 216, 204, 0.18), 0 0.45rem 1.5rem rgba(0, 0, 0, 0.55);
  --map-bg: #151815;
  --muscle-fill: #3d443f;
  --muscle-stroke: #101210;
  --muscle-selected: #7ed8cc;
  --outline-stroke: #6d756e;
  --button-text: #07100e;
  --accent-dark: #a6eee5;
  --border: #343932;
  --control-bg: #252a26;
  --control-border: #667068;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  font-size: 100%;
  line-height: 1.6;
  background: var(--background);
  color: var(--text);
}

body {
  margin: 0;
  padding: 2rem 0;
}

main,
footer,
.top-nav {
  width: 100%;
  max-width: calc(44rem + (var(--page-padding) * 2));
  margin-inline: auto;
  padding-inline: var(--page-padding);
}

main.wide-page {
  max-width: calc(68rem + (var(--page-padding) * 2));
}

.top-nav.wide-nav {
  max-width: calc(68rem + (var(--page-padding) * 2));
}

main {
  padding-block: 1rem 2rem;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  align-items: center;
  justify-content: flex-start;
  padding-block: 0 1rem;
  border-bottom: 1px solid var(--border);
}

.top-nav nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  align-items: center;
  width: 100%;
}

.brand-link {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.brand-menu {
  color: var(--text);
}

.brand-menu summary {
  display: inline-flex;
  gap: 0.25rem;
  align-items: center;
  color: var(--text);
  font-weight: 800;
  list-style: none;
  text-decoration: none;
}

.brand-menu summary::after {
  content: "Contents";
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.brand-menu summary::-webkit-details-marker {
  display: none;
}

.brand-menu .nav-menu-list {
  position: absolute;
  z-index: 10;
}

.top-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.nav-dropdown {
  position: relative;
}

.nav-dropdown summary {
  color: var(--link);
  cursor: pointer;
  text-decoration: underline;
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.16em;
}

.nav-dropdown.brand-menu summary {
  color: var(--text);
  text-decoration: none;
}

.nav-dropdown summary:hover,
.nav-dropdown summary:focus {
  color: var(--accent-dark);
}

.nav-dropdown summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.nav-menu-list {
  display: grid;
  gap: 0.3rem;
  min-width: 12rem;
  margin-top: 0.45rem;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--background);
  box-shadow: var(--icon-shadow);
}

.theme-toggle {
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.9rem;
}

.theme-toggle::after {
  content: attr(data-theme-label);
}

.theme-toggle:hover,
.theme-toggle:focus {
  border-color: var(--accent);
}

.site-header {
  padding-block: 2rem 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.hero-brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

.app-icon {
  display: block;
  border: 1px solid var(--icon-border);
  border-radius: 0.9rem;
  background: #030303;
  box-shadow: var(--icon-shadow);
}

.hero-icon {
  width: 4rem;
  height: 4rem;
}

.hero-map-preview {
  max-width: 24rem;
  margin: 1.25rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-map-preview img {
  display: block;
  width: 100%;
  max-height: 24rem;
  object-fit: contain;
  border: 1px solid var(--border);
  background: var(--map-bg);
  box-shadow: var(--icon-shadow);
}

.hero-map-preview figcaption {
  margin-top: 0.45rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-dark);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  line-height: 1.2;
  letter-spacing: 0;
}

h1 {
  max-width: 12ch;
  margin: 0;
  font-size: 2.5rem;
}

h2 {
  margin: 2rem 0 0.65rem;
  font-size: 1.35rem;
}

p {
  margin: 0.75rem 0;
}

.lede {
  max-width: 38rem;
  margin-top: 1rem;
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1.5;
}

a {
  color: var(--link);
  text-decoration-thickness: 0.09em;
  text-underline-offset: 0.16em;
}

a:hover,
a:focus {
  color: var(--accent-dark);
}

a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

ul {
  padding-left: 1.35rem;
}

li {
  margin-block: 0.25rem;
}

.columns {
  column-width: 14rem;
  column-gap: 2rem;
}

.button-link {
  display: inline-block;
  padding: 0.65rem 0.85rem;
  border: 2px solid var(--accent);
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.button-link:hover,
.button-link:focus {
  border-color: var(--accent-dark);
  background: var(--surface);
}

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

.secondary-button:hover,
.secondary-button:focus {
  border-color: var(--accent);
}

.download-note {
  color: var(--muted);
  font-size: 0.95rem;
}

.cta-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem 1rem;
  align-items: flex-start;
}

.download-callout,
.feature-callout {
  border: 1px solid var(--border);
  background: var(--surface);
}

.download-callout,
.feature-callout {
  padding: 1rem;
  margin-block: 1.5rem;
}

.download-callout h2,
.feature-callout h2 {
  margin-top: 0;
}

.link-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  padding-left: 0;
  list-style: none;
}

.difference-list {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.difference-list article {
  padding: 0.9rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.difference-list h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.difference-list p {
  margin: 0;
}

.insight-example {
  margin: 1rem 0;
  padding: 0.9rem 1rem;
  border-left: 0.25rem solid var(--accent);
  background: var(--surface);
}

.insight-example p {
  margin: 0;
}

.doc-content {
  min-width: 0;
}

.doc-section {
  padding-block: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.doc-section:last-child {
  border-bottom: 0;
}

.sample-report {
  overflow-x: auto;
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font: 0.9rem/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
}

.report-card-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.report-card {
  padding: 0.9rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.report-card h3 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
}

.report-card p {
  margin: 0;
}

.doc-media {
  max-width: 20rem;
  margin: 1rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.doc-media img {
  display: block;
  width: 100%;
  max-height: 24rem;
  object-fit: contain;
  border: 1px solid var(--border);
  background: var(--map-bg);
}

.doc-media figcaption {
  margin-top: 0.45rem;
}

.formula {
  display: inline-block;
  padding: 0.1rem 0.3rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.manifesto-list {
  font-weight: 700;
}

.manifesto-essay section {
  padding-block: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
}

.manifesto-essay section:last-child {
  border-bottom: 0;
}

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

.note,
.placeholder {
  color: var(--muted);
}

.note {
  padding: 0.75rem 0.9rem;
  border-left: 3px solid var(--accent);
  background: var(--surface);
}

footer {
  padding-block: 1.5rem 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.95rem;
}

footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
  margin-bottom: 0.75rem;
}

.muscle-demo {
  display: grid;
  gap: 1rem;
  align-items: start;
}

.muscle-panel,
.map-panel,
.explanation-panel {
  min-width: 0;
}

.muscle-panel {
  order: 2;
}

.map-panel {
  order: 1;
}

.explanation-panel {
  order: 3;
  padding-top: 0.25rem;
}

.mode-switcher,
.control-header,
.button-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.mode-switcher {
  margin: 1.25rem 0;
}

.control-header {
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
}

.control-header h3 {
  margin: 0;
  font-size: 1rem;
}

.button-grid {
  margin-top: 0.75rem;
}

.specific-group-controls {
  margin-top: 0.9rem;
}

.specific-group-controls[hidden] {
  display: none;
}

.subcontrol-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

button {
  font: inherit;
}

.mode-button,
.choice-button,
.reset-button {
  border: 1px solid var(--border);
  background: var(--background);
  color: var(--text);
  cursor: pointer;
}

.mode-button,
.choice-button {
  padding: 0.45rem 0.65rem;
}

.reset-button {
  padding: 0.35rem 0.55rem;
  color: var(--accent-dark);
}

.mode-button:hover,
.choice-button:hover,
.reset-button:hover,
.mode-button:focus,
.choice-button:focus,
.reset-button:focus {
  border-color: var(--accent);
}

.mode-button:focus-visible,
.choice-button:focus-visible,
.reset-button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.mode-button[aria-pressed="true"],
.choice-button[aria-pressed="true"] {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--button-text);
}

.map-panel {
  border: 1px solid var(--border);
  background: var(--map-bg);
}

.muscle-map {
  display: grid;
  min-height: 24rem;
  place-items: center;
  padding: 0.5rem;
}

.noscript-map {
  padding: 0.5rem;
  color: var(--muted);
  text-align: center;
}

.noscript-map img {
  display: block;
  width: 100%;
  max-height: 76vh;
  object-fit: contain;
}

.anatomy-svg {
  display: block;
  width: 100%;
  max-height: 76vh;
}

.muscle-region {
  fill: var(--muscle-fill);
  stroke: var(--muscle-stroke);
  stroke-width: 1.2;
}

.muscle-region.is-muted {
  opacity: 0.18;
}

.muscle-region.is-selected {
  fill: var(--muscle-selected);
  opacity: 1;
}

.custom-mapping-callout {
  display: grid;
  gap: 1rem;
  align-items: center;
  max-width: 44rem;
  padding: 1rem;
  margin-block: 1.5rem 2rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.custom-mapping-callout h2 {
  margin-top: 0;
}

.custom-mapping-media {
  width: min(100%, 15rem);
  aspect-ratio: 9 / 13;
  margin: 0 auto;
  margin-inline: auto;
  border: 1px solid var(--border);
  border-radius: 0.65rem;
  background: var(--map-bg);
  background-image: url("assets/muscle-customization-light.jpg");
  background-position: top center;
  background-size: cover;
  box-shadow: var(--icon-shadow);
}

@media (prefers-color-scheme: dark) {
  .custom-mapping-media {
    background-image: url("assets/muscle-customization-dark.jpg");
  }
}

:root[data-theme="light"] .custom-mapping-media {
  background-image: url("assets/muscle-customization-light.jpg");
}

:root[data-theme="dark"] .custom-mapping-media {
  background-image: url("assets/muscle-customization-dark.jpg");
}

.body-outline {
  fill: none;
  stroke: var(--outline-stroke);
  stroke-width: 1;
}

.explanation-panel h2 {
  margin-top: 0;
}

.reading-section {
  max-width: 44rem;
}

/* Routine comparison tool */
.compare-page {
  max-width: calc(76rem + (var(--page-padding) * 2));
}

.compare-header h1 {
  max-width: 15ch;
}

.compare-toolbar,
.section-heading,
.routine-heading,
.routine-item,
.picker-heading,
.map-legend {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.compare-toolbar {
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.metric-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.save-status {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.9rem;
}

.tool-button,
.add-exercise-button,
.icon-button,
.text-button,
.view-switcher button,
.metric-switcher button,
.exercise-result {
  border: 1px solid var(--border);
  background: var(--background);
  color: var(--text);
  cursor: pointer;
}

.tool-button,
.add-exercise-button,
.view-switcher button {
  padding: 0.55rem 0.75rem;
  font-weight: 700;
}

.metric-switcher button {
  padding: 0.55rem 0.75rem;
  font-weight: 700;
}

.add-exercise-button {
  width: 100%;
  margin: 0.85rem 0;
  padding: 0.85rem 1rem;
  border: 2px solid var(--accent-dark);
  background: var(--accent-dark);
  color: var(--button-text);
  font-size: 1rem;
  font-weight: 800;
}

.add-exercise-button:hover,
.add-exercise-button:focus {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--button-text);
}

.danger-button,
.remove-button {
  color: #a5382b;
}

.tool-button:hover,
.add-exercise-button:hover,
.icon-button:hover,
.text-button:hover,
.view-switcher button:hover,
.metric-switcher button:hover,
.exercise-result:hover {
  border-color: var(--accent);
}

.tool-button:focus-visible,
.add-exercise-button:focus-visible,
.icon-button:focus-visible,
.text-button:focus-visible,
.view-switcher button:focus-visible,
.metric-switcher button:focus-visible,
.exercise-result:focus-visible,
.routine-builder input:focus-visible,
.routine-builder select:focus-visible,
.day-toggle:focus-visible,
.exercise-picker input:focus-visible,
.exercise-picker select:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.routine-grid {
  display: grid;
  gap: 1rem;
}

.routine-builder,
.comparison-map-card,
.comparison-summary {
  min-width: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.builder-helper {
  max-width: none;
  margin-bottom: 1rem;
}

.starter-section {
  margin: 1.5rem 0 2rem;
}

.starter-section h2,
.starter-section .eyebrow {
  margin-top: 0;
}

.starter-grid {
  display: grid;
  gap: 0.75rem;
  margin-top: 1rem;
}

.starter-card {
  padding: 0.9rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.starter-card h3,
.starter-card p {
  margin-top: 0;
}

.starter-card p {
  font-size: 0.9rem;
}

.advanced-mode-button {
  border-style: dashed;
}

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

.routine-heading label,
.field-label,
.picker-filters label {
  font-size: 0.9rem;
  font-weight: 750;
}

.routine-heading > label:first-child {
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 850;
  letter-spacing: 0.035em;
  text-transform: uppercase;
}

.routine-name,
.routine-source,
.day-name,
.scope-field select,
.exercise-metrics input,
.set-row input,
.exercise-picker input,
.exercise-picker select {
  border: 1px solid var(--border);
  border-radius: 0;
  background: var(--background);
  color: var(--text);
  font: inherit;
}

.scope-field {
  display: grid;
  gap: 0.2rem;
  margin-top: 0.85rem;
  font-size: 0.9rem;
  font-weight: 750;
}

.scope-field select {
  width: 100%;
  padding: 0.5rem;
}

.routine-day-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
  margin: 0.8rem 0;
}

.routine-days {
  display: grid;
  gap: 0.75rem;
}

.day-card {
  min-width: 0;
  border: 1px solid var(--border);
  background: var(--background);
}

.day-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.45rem 0.6rem;
  align-items: center;
  padding: 0.65rem;
}

.day-toggle {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

.day-title-block {
  min-width: 0;
}

.day-name {
  width: 100%;
  padding: 0.3rem 0.4rem;
  font-weight: 800;
}

.day-title-block p {
  margin: 0.2rem 0 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.day-actions {
  display: flex;
  grid-column: 2;
  gap: 0.4rem;
  justify-content: flex-end;
}

.day-content {
  padding: 0 0.65rem 0.65rem;
  border-top: 1px solid var(--border);
}

.day-content[hidden] {
  display: none;
}

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

.routine-name {
  width: 100%;
  padding: 0.45rem 0.55rem;
  font-size: 1.2rem;
  font-weight: 800;
}

.routine-source {
  width: 100%;
  padding: 0.65rem 0.7rem;
  border-width: 2px;
  border-color: var(--accent);
  background: var(--control-bg);
  font-size: 1.12rem;
  font-weight: 800;
}

.custom-name-label {
  margin-top: 0.65rem;
}

.routine-total,
.routine-item-copy span {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.routine-items {
  display: grid;
  gap: 0.55rem;
}

.routine-item {
  display: grid;
  grid-template-columns: minmax(8rem, 1fr) auto;
  align-items: center;
  padding: 0.65rem;
  border: 1px solid var(--border);
  background: var(--background);
}

.routine-item-copy {
  display: grid;
  gap: 0.25rem;
  min-width: 0;
  flex: 1;
}

.routine-item-copy strong {
  line-height: 1.25;
}

.routine-item-copy small {
  color: var(--muted);
  font-size: 0.75rem;
}

.bodyweight-label {
  display: inline-block;
  margin-left: 0.35rem;
  padding: 0.05rem 0.3rem;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.7rem;
  font-weight: 700;
}

.exercise-metrics {
  display: flex;
  grid-column: 1 / -1;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.exercise-metrics label {
  display: grid;
  flex: 1;
  gap: 0.1rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.exercise-metrics input {
  width: 100%;
  min-width: 0;
  padding: 0.35rem;
  font-variant-numeric: tabular-nums;
}

.set-list {
  display: grid;
  grid-column: 1 / -1;
  gap: 0.35rem;
  margin-top: 0.55rem;
}

.set-row {
  display: grid;
  grid-template-columns: auto minmax(3.25rem, 4.5rem) minmax(4.25rem, 5.75rem) auto;
  gap: 0.35rem;
  align-items: end;
  justify-content: start;
  padding: 0.4rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.set-row > strong {
  align-self: center;
  font-size: 0.78rem;
  white-space: nowrap;
}

.set-row label {
  display: grid;
  gap: 0.1rem;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 700;
}

.set-row input {
  width: 100%;
  min-width: 0;
  padding: 0.3rem;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.add-set-button {
  justify-self: start;
  margin-top: 0.1rem;
  border-color: var(--control-border);
  background: var(--control-bg);
  font-size: 0.8rem;
}

.add-set-button:disabled {
  cursor: default;
  opacity: 0.45;
}

.routine-item.missing-load {
  border-left: 0.25rem solid #bd5a00;
}

.load-warning {
  grid-column: 1 / -1;
  margin-top: 0.3rem;
  color: #a34d00;
  font-size: 0.75rem;
  font-weight: 750;
}

.sets-field {
  display: grid;
  gap: 0.1rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-align: center;
}

.sets-field input {
  width: 3.6rem;
  padding: 0.35rem;
  text-align: center;
}

.reorder-actions {
  display: flex;
  grid-column: 2;
  grid-row: 1;
  gap: 0.4rem;
}

.icon-button {
  min-width: 1.85rem;
  min-height: 1.85rem;
  padding: 0.1rem 0.25rem;
  border-color: var(--control-border);
  background: var(--control-bg);
  font-size: 1rem;
  line-height: 1;
}

.icon-button:disabled {
  cursor: default;
  opacity: 0.35;
}

.empty-routine {
  margin: 0;
  padding: 1rem;
  border: 1px dashed var(--border);
  color: var(--muted);
  text-align: center;
}

.compare-results,
.comparison-summary,
.comparison-table-wrap,
.compare-cta,
.methodology {
  margin-top: 2rem;
}

.section-heading {
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
}

.section-heading h2,
.section-heading .eyebrow,
.comparison-summary h2,
.comparison-summary .eyebrow,
.comparison-map-card h3,
.picker-heading h2,
.picker-heading .eyebrow {
  margin-top: 0;
}

.view-switcher {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.view-switcher button[aria-pressed="true"] {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--button-text);
}

.metric-switcher button[aria-pressed="true"] {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
  color: var(--button-text);
}

.comparison-map-card {
  max-width: 46rem;
  margin-inline: auto;
  background: var(--map-bg);
}

.comparison-map {
  display: grid;
  min-height: 25rem;
  place-items: center;
}

.comparison-map .anatomy-svg {
  max-height: 35rem;
}

.map-legend {
  flex-wrap: wrap;
  justify-content: center;
  color: var(--muted);
  font-size: 0.88rem;
}

.map-legend span {
  display: inline-flex;
  gap: 0.35rem;
  align-items: center;
}

.map-legend i {
  width: 0.9rem;
  height: 0.9rem;
  border: 1px solid var(--border);
  background: var(--legend-color);
}

.comparison-summary ul {
  margin-bottom: 0;
}

.comparison-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
}

.comparison-table {
  width: 100%;
  min-width: 43rem;
  border-collapse: collapse;
  background: var(--background);
  font-variant-numeric: tabular-nums;
}

.comparison-table th,
.comparison-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.comparison-table thead th {
  background: var(--surface);
}

.comparison-table tbody tr:last-child > * {
  border-bottom: 0;
}

.emphasis-label {
  display: inline-block;
  padding: 0.1rem 0.35rem;
  border-left: 0.25rem solid var(--border);
}

.emphasis-a { border-color: #bd5a00; }
.emphasis-b { border-color: #3567b0; }
.emphasis-similar { border-color: var(--muted); }

.exercise-picker {
  width: min(46rem, calc(100% - 1.5rem));
  max-height: min(48rem, calc(100% - 1.5rem));
  padding: 0;
  border: 1px solid var(--border);
  background: var(--background);
  color: var(--text);
}

.exercise-picker::backdrop {
  background: rgba(0, 0, 0, 0.58);
}

.picker-shell {
  display: grid;
  gap: 0.7rem;
  padding: 1rem;
}

.picker-heading {
  justify-content: space-between;
  align-items: flex-start;
}

.picker-heading .icon-button {
  min-width: 2.75rem;
  min-height: 2.75rem;
  border: 2px solid #a5382b;
  background: #a5382b;
  color: #ffffff;
  font-size: 1.65rem;
  font-weight: 800;
  line-height: 1;
}

.picker-heading .icon-button:hover,
.picker-heading .icon-button:focus {
  border-color: #c95748;
  background: #c95748;
  color: #ffffff;
}

.exercise-picker input,
.exercise-picker select {
  width: 100%;
  padding: 0.55rem;
}

.picker-filters {
  display: grid;
  gap: 0.55rem;
}

.picker-filters label {
  display: grid;
  gap: 0.2rem;
}

.text-button {
  justify-self: start;
  padding: 0.3rem 0.45rem;
  color: var(--accent-dark);
}

.exercise-results {
  display: grid;
  gap: 0.7rem;
  max-height: 22rem;
  overflow-y: auto;
}

.exercise-result {
  display: flex;
  width: 100%;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  min-height: 4.25rem;
  padding: 0.9rem 1rem;
  text-align: left;
}

.exercise-result span:first-child {
  display: grid;
}

.exercise-result small {
  color: var(--muted);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media (min-width: 48rem) {
  :root {
    --page-padding: 1.5rem;
  }

  body {
    padding: 3rem 0;
  }

  .site-header {
    padding-top: 2.5rem;
  }

  .top-nav {
    justify-content: space-between;
  }

  .top-nav nav {
    width: auto;
  }

  .nav-menu-list {
    position: absolute;
    z-index: 10;
    top: 100%;
    left: 0;
  }

  .theme-toggle {
    margin-left: 0;
  }

  h1 {
    font-size: 4.25rem;
  }

  .cta-row {
    flex-direction: row;
    align-items: center;
  }

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

  .difference-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .muscle-demo {
    grid-template-columns: minmax(18rem, 0.95fr) minmax(20rem, 1.05fr);
    gap: 1.5rem 2rem;
  }

  .muscle-panel {
    order: 1;
  }

  .map-panel {
    order: 2;
  }

  .explanation-panel {
    order: 3;
  }

  .custom-mapping-callout {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.25rem;
  }

  .map-panel {
    position: sticky;
    top: 1.5rem;
  }

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

  .routine-grid.is-single {
    grid-template-columns: minmax(0, 46rem);
  }

  .starter-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .day-header {
    grid-template-columns: auto minmax(0, 1fr) auto;
  }

  .day-actions {
    grid-column: 3;
  }

  .picker-filters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .explanation-panel {
    grid-column: 1;
  }
}