@font-face {
  font-family: "Nunito Sans";
  src: url("/fonts/NunitoSans-Variable.ttf") format("truetype-variations");
  font-style: normal;
  font-weight: 200 1000;
  font-display: swap;
}

:root {
  --studio-canvas: #ffffff;
  --studio-ink: #141414;
  --studio-ink-soft: #555555;
  --studio-footnote: #67635a;
  --studio-ghost: #9a9a9a;
  --studio-line: #d2d0cb;
  --studio-paper: #f2f0eb;
  --studio-chip: #ede9e2;
  --studio-yellow: #f2e24d;
  --studio-yellow-edge: #cb822e;
  --studio-red: #d63a31;
  --studio-red-ink: #b52d27;
  --studio-green: #a9c550;
  --studio-green-ink: #526617;
  --studio-surface-green: #eaf0d4;
  --studio-surface-red: #f8dedb;
  --studio-surface-soft: #f8f7f3;
  --studio-surface-cream: #fffced;
  --studio-surface-warm: #fffdf2;
  --studio-surface-muted: #f1efe5;
  --studio-shadow-neutral: #c9c5bd;
  --studio-shadow-danger: #f2a29c;
  --studio-focus-ring: var(--studio-ink);
  --studio-focus-halo: var(--studio-yellow);
  --studio-panel-radius: 22px;
  --studio-control-radius: 14px;
  --studio-card-radius: 16px;
  --studio-border: 2px solid var(--studio-ink);
  --studio-hairline: 1px solid var(--studio-line);
  --studio-topbar-height: 88px;
  --studio-motion-fast: 180ms;
  --studio-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--studio-canvas);
  color: var(--studio-ink);
}

body.aiarchitect-theme {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--studio-canvas);
  color: var(--studio-ink);
  font-family: "Nunito Sans", system-ui, sans-serif;
  font-weight: 650;
  text-rendering: geometricPrecision;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
video:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--studio-focus-ring);
  outline-offset: 3px;
}

.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;
}

.studio-skip-link {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 1000;
  padding: 10px 16px;
  background: var(--studio-yellow);
  border: var(--studio-border);
  color: var(--studio-ink);
  text-decoration: none;
  font-weight: 900;
}

.studio-skip-link:focus {
  top: 12px;
}

.studio-app {
  min-height: 100vh;
}

.studio-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  min-height: var(--studio-topbar-height);
  display: grid;
  grid-template-columns: minmax(320px, 1fr) auto minmax(116px, 0.3fr);
  align-items: center;
  gap: 24px;
  padding: 12px 20px;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: var(--studio-hairline);
}

.studio-brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--studio-ink);
  text-decoration: none;
}

.studio-brand-group {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 16px;
}

.studio-return-link {
  flex: 0 0 auto;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  background: #fffdf0;
  border: 2px solid var(--studio-ink);
  border-radius: 10px;
  box-shadow: 3px 3px 0 var(--studio-yellow);
  color: var(--studio-ink);
  font-size: 12px;
  font-weight: 950;
  text-decoration: none;
  white-space: nowrap;
}

.studio-return-link:hover {
  background: var(--studio-yellow);
}

.studio-return-link__short {
  display: none;
}

.studio-brand__mark {
  flex: 0 0 58px;
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  transform: rotate(-1.5deg);
}

.studio-brand__mark svg {
  width: 100%;
  height: 100%;
}

.studio-brand__copy {
  min-width: 0;
  display: grid;
  gap: 1px;
}

.studio-brand__title {
  overflow: hidden;
  font-size: clamp(18px, 1.6vw, 28px);
  font-weight: 950;
  letter-spacing: -0.045em;
  line-height: 1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.studio-brand__tagline {
  color: var(--studio-red);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.studio-nav {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 4px;
}

.studio-nav__item {
  min-width: 74px;
  min-height: 58px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 2px;
  padding: 4px 10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--studio-ink-soft);
  cursor: pointer;
  font-size: 11px;
  font-weight: 800;
}

.studio-nav__item:hover,
.studio-nav__item.is-active {
  background: var(--studio-chip);
  color: var(--studio-ink);
}

.studio-nav__item.is-active {
  box-shadow: inset 0 -3px 0 var(--studio-yellow);
}

.studio-nav__icon {
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
}

.studio-account {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--studio-footnote);
  font-size: 12px;
}

.studio-account__ring {
  position: relative;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  color: var(--studio-ink);
  font-size: 12px;
  font-weight: 950;
}

.studio-account__ring svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.studio-account__track,
.studio-account__progress {
  fill: none;
  stroke-width: 4;
}

.studio-account__track {
  stroke: var(--studio-chip);
}

.studio-account__progress {
  stroke: var(--studio-yellow-edge);
  stroke-linecap: round;
  stroke-dasharray: 107;
  stroke-dashoffset: 107;
  transition: stroke-dashoffset 260ms ease;
}

.studio-mobile-toolbar {
  display: none;
}

.studio-layout {
  display: grid;
  grid-template-columns: minmax(245px, 292px) minmax(620px, 1fr) minmax(
      280px,
      334px
    );
  align-items: start;
  gap: 14px;
  padding: 14px;
}

.studio-sidebar,
.studio-map-card,
.studio-lab-card {
  background: var(--studio-canvas);
  border: var(--studio-hairline);
  border-radius: var(--studio-panel-radius);
}

.studio-sidebar {
  position: sticky;
  top: calc(var(--studio-topbar-height) + 14px);
  max-height: calc(100vh - var(--studio-topbar-height) - 28px);
  overflow: hidden;
}

.studio-sidebar--modules {
  display: grid;
  grid-template-rows: auto auto auto auto minmax(120px, 1fr);
  padding: 16px 12px 12px;
}

.studio-sidebar--details {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px;
  overflow-y: auto;
}

.studio-panel-head {
  min-height: 42px;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  padding: 0 4px 12px;
  border-bottom: 1px dashed var(--studio-line);
}

.studio-panel-head--details {
  position: relative;
}

.studio-kicker {
  margin: 0;
  color: var(--studio-ink);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.1em;
  line-height: 1.2;
  text-transform: uppercase;
}

.studio-panel-meta {
  margin: 4px 0 0;
  color: var(--studio-ghost);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.studio-panel-close {
  display: none;
  width: 36px;
  height: 36px;
  padding: 0;
  border: var(--studio-hairline);
  border-radius: 50%;
  background: var(--studio-canvas);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}

.studio-search {
  min-height: 42px;
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  margin: 12px 2px 10px;
  padding: 0 12px;
  border: var(--studio-hairline);
  border-radius: 12px;
  background: var(--studio-paper);
}

.studio-search__icon {
  color: var(--studio-ink-soft);
  font-size: 21px;
  font-weight: 900;
}

.studio-search input {
  min-width: 0;
  height: 40px;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--studio-ink);
  font-size: 12px;
  font-weight: 750;
}

.studio-search input::placeholder {
  color: var(--studio-ghost);
}

.studio-modules {
  display: grid;
  gap: 5px;
}

.studio-module {
  position: relative;
  width: 100%;
  min-height: 64px;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: 2px solid transparent;
  border-radius: 13px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.studio-module::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 18px;
  width: 4px;
  height: 28px;
  border-radius: 0 4px 4px 0;
  background: transparent;
}

.studio-module:hover {
  background: var(--studio-paper);
}

.studio-module.is-active {
  border-color: var(--studio-ink);
  background: var(--studio-yellow);
  box-shadow: 4px 4px 0 var(--studio-yellow-edge);
  transform: translate(-2px, -2px);
}

.studio-module.is-active::before {
  background: var(--studio-red);
}

.studio-module__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 2px solid var(--studio-ink);
  border-radius: 9px;
  background: var(--studio-canvas);
  font-size: 12px;
  font-weight: 950;
}

.studio-module__copy {
  min-width: 0;
  display: grid;
  gap: 1px;
}

.studio-module__title {
  overflow: hidden;
  font-size: 13px;
  font-weight: 950;
  letter-spacing: -0.015em;
  line-height: 1.1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.studio-module__description {
  overflow: hidden;
  color: var(--studio-ink-soft);
  font-size: 9px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.studio-module__count {
  color: var(--studio-footnote);
  font-size: 10px;
  font-weight: 900;
}

.studio-list-divider {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 14px 4px 6px;
  padding-top: 12px;
  border-top: 1px dashed var(--studio-line);
}

.studio-list-divider__count {
  min-width: 24px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--studio-chip);
  color: var(--studio-footnote);
  font-size: 10px;
}

.studio-filter-row {
  display: flex;
  gap: 5px;
  padding: 0 4px 8px;
}

.studio-filter {
  min-height: 27px;
  padding: 3px 9px;
  border: var(--studio-hairline);
  border-radius: 999px;
  background: var(--studio-canvas);
  color: var(--studio-footnote);
  cursor: pointer;
  font-size: 10px;
  font-weight: 850;
}

.studio-filter:hover,
.studio-filter.is-active {
  border-color: var(--studio-ink);
  background: var(--studio-ink);
  color: var(--studio-canvas);
}

.studio-lessons {
  min-height: 0;
  display: grid;
  align-content: start;
  gap: 5px;
  overflow-y: auto;
  padding: 0 2px 4px;
  scrollbar-width: thin;
}

.studio-lesson-row {
  width: 100%;
  min-height: 54px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) 18px;
  align-items: center;
  gap: 8px;
  padding: 7px 8px;
  border: 1px solid transparent;
  border-radius: 11px;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.studio-lesson-row:hover,
.studio-lesson-row.is-selected {
  border-color: var(--studio-line);
  background: var(--studio-paper);
}

.studio-lesson-row.is-selected {
  box-shadow: inset 3px 0 0 var(--studio-red);
}

.studio-lesson-row__number {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid var(--studio-line);
  border-radius: 50%;
  background: var(--studio-canvas);
  color: var(--studio-footnote);
  font-size: 9px;
  font-weight: 950;
}

.studio-lesson-row__copy {
  min-width: 0;
  display: grid;
  gap: 2px;
}

.studio-lesson-row__title {
  display: -webkit-box;
  overflow: hidden;
  color: var(--studio-ink);
  font-size: 11px;
  font-weight: 900;
  line-height: 1.15;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.studio-lesson-row__meta {
  color: var(--studio-ghost);
  font-size: 8px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.studio-lesson-row__state {
  color: var(--studio-red);
  font-size: 15px;
  font-weight: 950;
}

.studio-empty-state {
  margin: 12px 4px;
  padding: 18px 12px;
  border: 1px dashed var(--studio-line);
  border-radius: 12px;
  color: var(--studio-footnote);
  font-size: 11px;
  text-align: center;
}

.studio-skeleton {
  position: relative;
  overflow: hidden;
  background: var(--studio-paper);
}

.studio-skeleton::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    100deg,
    transparent 20%,
    rgba(255, 255, 255, 0.75) 48%,
    transparent 76%
  );
  transform: translateX(-100%);
  animation: studio-skeleton 1.25s ease-in-out infinite;
}

.studio-skeleton--module {
  height: 58px;
  border-radius: 12px;
}

@keyframes studio-skeleton {
  to {
    transform: translateX(100%);
  }
}

.studio-workspace {
  min-width: 0;
  display: grid;
  gap: 14px;
}

.studio-map-card {
  min-width: 0;
  overflow: hidden;
}

.studio-map-head {
  min-height: 100px;
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 22px 12px;
}

.studio-map-head__eyebrow {
  margin: 0 0 3px;
  color: var(--studio-red);
  font-size: 10px;
  font-weight: 950;
  letter-spacing: 0.12em;
}

.studio-map-head__title {
  margin: 0;
  font-size: clamp(28px, 3vw, 54px);
  font-weight: 950;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

.studio-map-head__description {
  margin: 7px 0 0;
  color: var(--studio-footnote);
  font-size: 12px;
}

.studio-lesson-focus {
  display: grid;
  gap: 15px;
  margin: 0 12px 16px;
  padding: 20px;
  background: #fffdf0;
  border: 2px solid var(--studio-ink);
  border-radius: 18px;
  box-shadow: 6px 6px 0 var(--studio-yellow);
}

.studio-lesson-focus[hidden] {
  display: none;
}

.studio-lesson-focus__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.studio-lesson-focus__eyebrow {
  margin: 0 0 5px;
  color: var(--studio-red);
  font-size: 12px;
  font-weight: 950;
  letter-spacing: 0.11em;
}

.studio-lesson-focus__header h2 {
  margin: 0;
  font-size: clamp(25px, 2.4vw, 38px);
  font-weight: 950;
  letter-spacing: -0.045em;
  line-height: 1;
}

.studio-lesson-focus__header > a {
  flex: 0 0 auto;
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  padding: 6px 11px;
  background: #fff;
  border: 2px solid var(--studio-ink);
  border-radius: 10px;
  color: var(--studio-ink);
  font-size: 12px;
  font-weight: 950;
  text-decoration: none;
}

.studio-lesson-focus__description {
  max-width: 980px;
  margin: 0;
  color: var(--studio-ink-soft);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.45;
}

.studio-lesson-focus__steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.studio-lesson-focus__steps button {
  width: 100%;
  min-height: 104px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  align-items: start;
  gap: 11px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--studio-line);
  border-radius: 13px;
  cursor: pointer;
  text-align: left;
}

.studio-lesson-focus__steps button:hover {
  border-color: var(--studio-ink);
  box-shadow: 3px 3px 0 var(--studio-ink);
}

.studio-lesson-focus__steps button > span:first-child {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--studio-yellow);
  border: 2px solid var(--studio-ink);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 950;
}

.studio-lesson-focus__steps button > span:last-child {
  display: grid;
  gap: 5px;
}

.studio-lesson-focus__steps strong {
  font-size: 14px;
  font-weight: 950;
  line-height: 1.2;
}

.studio-lesson-focus__steps small {
  color: var(--studio-footnote);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
}

.studio-lesson-focus footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 13px;
  border-top: 1px dashed var(--studio-line);
}

.studio-lesson-focus footer p,
.studio-lesson-focus footer strong {
  margin: 0;
  font-size: 12px;
  line-height: 1.35;
}

.studio-lesson-focus footer p {
  color: var(--studio-footnote);
}

.studio-lesson-focus footer strong {
  flex: 0 0 auto;
  color: #596d1d;
  font-weight: 950;
}

.studio-view-switcher {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(4, minmax(60px, 1fr));
  gap: 5px;
  padding: 5px;
  border: var(--studio-hairline);
  border-radius: 15px;
  background: var(--studio-paper);
}

.studio-view-button {
  min-height: 48px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 1px;
  padding: 4px 8px;
  border: 2px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: var(--studio-footnote);
  cursor: pointer;
  font-size: 9px;
  font-weight: 850;
}

.studio-view-button > span:first-child {
  color: var(--studio-ink);
  font-size: 20px;
  font-weight: 950;
}

.studio-view-button:hover,
.studio-view-button.is-active {
  border-color: var(--studio-ink);
  background: var(--studio-canvas);
  color: var(--studio-ink);
}

.studio-view-button.is-active {
  box-shadow: 3px 3px 0 var(--studio-yellow-edge);
}

.studio-map {
  position: relative;
  min-height: 590px;
  margin: 0 12px;
  overflow: hidden;
  border: 1px dashed var(--studio-line);
  border-radius: 18px;
  background: var(--studio-canvas);
}

.studio-map::before,
.studio-map::after {
  content: "";
  position: absolute;
  z-index: 0;
  width: 26px;
  height: 26px;
  pointer-events: none;
}

.studio-map::before {
  left: 14px;
  top: 14px;
  border-left: 3px solid var(--studio-ink);
  border-top: 3px solid var(--studio-ink);
}

.studio-map::after {
  right: 14px;
  bottom: 14px;
  border-right: 3px solid var(--studio-ink);
  border-bottom: 3px solid var(--studio-ink);
}

.studio-map__paper-note {
  position: absolute;
  left: 18px;
  top: 52px;
  z-index: 3;
  display: grid;
  gap: 1px;
  padding: 9px 12px;
  border: 1px solid #e2cf33;
  background: #fff79a;
  color: var(--studio-footnote);
  font-size: 9px;
  font-weight: 850;
  transform: rotate(-1.5deg);
}

.studio-map__svg {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.arch-zone {
  fill: none;
  stroke: var(--studio-line);
  stroke-width: 1.5;
  stroke-dasharray: 7 8;
  opacity: 0.35;
  transition:
    opacity 180ms ease,
    stroke 180ms ease;
}

.arch-zone.is-active {
  stroke: var(--studio-yellow-edge);
  opacity: 0.72;
}

.arch-core-shell {
  fill: var(--studio-paper);
  stroke: var(--studio-ink);
  stroke-width: 2;
  vector-effect: non-scaling-stroke;
}

.arch-core-shell--back {
  fill: var(--studio-yellow);
  stroke: var(--studio-yellow-edge);
}

.arch-edge {
  fill: none;
  stroke: var(--studio-line);
  stroke-width: 2.2;
  stroke-linecap: round;
  vector-effect: non-scaling-stroke;
  transition:
    opacity 180ms ease,
    stroke 180ms ease,
    stroke-width 180ms ease;
}

.arch-edge.is-active {
  stroke: var(--studio-ink);
  stroke-width: 3.2;
}

.arch-edge.is-muted {
  opacity: 0.12;
}

.arch-edge-label {
  fill: var(--studio-ghost);
  font-family: "Nunito Sans", sans-serif;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.arch-node {
  cursor: pointer;
  transition: opacity 180ms ease;
}

.arch-node.is-muted {
  opacity: 0.14;
}

.arch-node.is-related {
  opacity: 0.72;
}

.arch-node__edge,
.arch-node__card {
  stroke: var(--studio-ink);
  stroke-width: 2.4;
  vector-effect: non-scaling-stroke;
}

.arch-node__edge {
  fill: var(--studio-chip);
}

.arch-node__card {
  fill: var(--studio-canvas);
  transition:
    fill 180ms ease,
    stroke 180ms ease;
}

.arch-node:hover .arch-node__card,
.arch-node:focus .arch-node__card {
  fill: var(--studio-paper);
}

.arch-node.is-selected .arch-node__edge {
  fill: var(--studio-yellow-edge);
}

.arch-node.is-selected .arch-node__card {
  fill: var(--studio-yellow);
  stroke-width: 3.2;
}

.arch-node.is-focus {
  opacity: 1;
}

.arch-node.is-focus:not(.is-selected) .arch-node__edge {
  fill: var(--studio-yellow);
}

.arch-node.is-focus:not(.is-selected) .arch-node__card {
  fill: #fffdf0;
  stroke-width: 3;
}

.arch-node.is-selected[data-module-id="tools"] .arch-node__card,
.arch-node.is-selected[data-module-id="context"] .arch-node__card {
  fill: #f7d9d5;
  stroke: var(--studio-red);
}

.arch-node.is-selected[data-module-id="tools"] .arch-node__edge,
.arch-node.is-selected[data-module-id="context"] .arch-node__edge {
  fill: var(--studio-red);
  stroke: var(--studio-red);
}

.arch-node__icon-disc {
  fill: var(--studio-ink);
}

.arch-node__icon {
  fill: var(--studio-canvas);
  font-family: "Nunito Sans", sans-serif;
  font-size: 10px;
  font-weight: 950;
  text-anchor: middle;
}

.arch-node__eyebrow {
  fill: var(--studio-footnote);
  font-family: "Nunito Sans", sans-serif;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-anchor: middle;
}

.arch-node__label {
  fill: var(--studio-ink);
  font-family: "Nunito Sans", sans-serif;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: -0.01em;
  text-anchor: middle;
}

.arch-node.is-core .arch-node__label {
  font-size: 16px;
}

.arch-node.is-core .arch-node__eyebrow {
  font-size: 9px;
}

.studio-map__legend {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 14px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--studio-footnote);
  font-size: 9px;
  font-weight: 800;
}

.studio-map__legend > span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.studio-map__legend button {
  min-height: 28px;
  margin-left: auto;
  padding: 3px 9px;
  border: var(--studio-hairline);
  border-radius: 9px;
  background: var(--studio-canvas);
  cursor: pointer;
  font-size: 9px;
  font-weight: 850;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border: 1px solid var(--studio-ink);
  border-radius: 50%;
  background: var(--studio-canvas);
}

.legend-dot--active {
  background: var(--studio-yellow);
}

.studio-map-footer {
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 9px 22px 11px;
  color: var(--studio-footnote);
  font-size: 10px;
}

.studio-map-footer p {
  margin: 0;
}

.studio-hand-note {
  color: var(--studio-red);
  font-weight: 850;
  transform: rotate(-0.8deg);
}

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

.studio-lab-card {
  min-width: 0;
  min-height: 280px;
  padding: 18px;
}

.studio-lab-card__head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--studio-line);
}

.studio-lab-card__head h2 {
  margin: 5px 0 0;
  font-size: 21px;
  font-weight: 950;
  letter-spacing: -0.035em;
  line-height: 1.02;
}

.studio-lab-card__badge {
  flex: 0 0 auto;
  min-width: 42px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 2px solid var(--studio-ink);
  border-radius: 9px;
  background: var(--studio-yellow);
  font-size: 11px;
  font-weight: 950;
  box-shadow: 3px 3px 0 var(--studio-yellow-edge);
  transform: rotate(1deg);
}

.studio-lab-card__badge--dark {
  background: var(--studio-ink);
  color: var(--studio-canvas);
  box-shadow: 3px 3px 0 var(--studio-red);
}

.studio-case-steps {
  display: grid;
  gap: 5px;
  margin: 12px 0 10px;
  padding: 0;
  list-style: none;
  counter-reset: case-step;
}

.studio-case-steps li {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  align-items: start;
  gap: 7px;
  color: var(--studio-ink-soft);
  font-size: 10px;
  line-height: 1.3;
  counter-increment: case-step;
}

.studio-case-steps li::before {
  content: counter(case-step);
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border: 1px solid var(--studio-ink);
  border-radius: 50%;
  color: var(--studio-ink);
  font-size: 8px;
  font-weight: 950;
}

.studio-anchor {
  margin: 10px 0 0;
  padding: 9px 11px;
  border-left: 4px solid var(--studio-red);
  background: var(--studio-paper);
  color: var(--studio-ink);
  font-size: 10px;
  font-weight: 900;
  line-height: 1.3;
}

.studio-comparison {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr);
  align-items: stretch;
  gap: 7px;
  margin-top: 14px;
}

.studio-comparison__side {
  position: relative;
  min-width: 0;
  min-height: 105px;
  padding: 11px;
  border: 1px solid var(--studio-line);
  border-radius: 12px;
  background: var(--studio-paper);
}

.studio-comparison__side[data-tone="bad"] {
  border-color: var(--studio-red);
  background: var(--studio-surface-red);
}

.studio-comparison__side[data-tone="good"] {
  padding-right: 26px;
  border-color: var(--studio-ink);
  background: var(--studio-surface-green);
}

.studio-comparison__side[data-tone="good"]::after {
  content: "✓";
  position: absolute;
  top: 7px;
  right: 8px;
  color: var(--studio-green);
  font-size: 13px;
  font-weight: 950;
  line-height: 1;
  transform: rotate(-6deg);
}

.studio-comparison__side strong {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
  font-weight: 950;
}

.studio-comparison__side p {
  margin: 0;
  color: var(--studio-footnote);
  font-size: 9px;
  line-height: 1.35;
}

.studio-comparison__vs {
  align-self: center;
  color: var(--studio-red);
  font-size: 10px;
  font-weight: 950;
  text-align: center;
  text-transform: uppercase;
}

.studio-comparison__takeaway {
  margin: 12px 2px 0;
  color: var(--studio-ink);
  font-size: 10px;
  font-weight: 850;
  line-height: 1.3;
}

.studio-favorite-node {
  position: absolute;
  right: 0;
  top: 0;
  width: 36px;
  height: 36px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--studio-red);
  cursor: pointer;
  font-size: 24px;
}

.studio-favorite-node.is-active {
  font-variation-settings: "FILL" 1;
}

.studio-node-intro {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.studio-node-intro__icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border: 3px solid var(--studio-ink);
  border-radius: 16px;
  background: var(--studio-yellow);
  box-shadow: 5px 5px 0 var(--studio-yellow-edge);
  font-size: 16px;
  font-weight: 950;
  transform: rotate(-1deg);
}

.studio-node-intro h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 950;
  letter-spacing: -0.045em;
  line-height: 1;
}

.studio-node-intro p {
  margin: 5px 0 0;
  color: var(--studio-footnote);
  font-size: 10px;
  line-height: 1.2;
}

.studio-node-description {
  margin: 0;
  color: var(--studio-ink-soft);
  font-size: 12px;
  line-height: 1.45;
}

.studio-node-facts {
  display: grid;
  gap: 0;
  margin: 0;
  border-top: 1px dashed var(--studio-line);
  border-bottom: 1px dashed var(--studio-line);
}

.studio-node-facts > div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 9px;
  padding: 8px 0;
  border-bottom: var(--studio-hairline);
}

.studio-node-facts > div:last-child {
  border-bottom: 0;
}

.studio-node-facts dt,
.studio-node-facts dd {
  margin: 0;
  font-size: 9px;
  line-height: 1.3;
}

.studio-node-facts dt {
  color: var(--studio-ghost);
  font-weight: 850;
  text-transform: uppercase;
}

.studio-node-facts dd {
  color: var(--studio-ink);
  font-weight: 750;
}

.studio-note-card {
  padding: 13px;
  border: 2px solid var(--studio-ink);
  border-radius: 13px;
  background: var(--studio-canvas);
}

.studio-note-card p:last-child {
  margin: 7px 0 0;
  font-size: 11px;
  font-weight: 850;
  line-height: 1.35;
}

.studio-note-card--rule {
  box-shadow: 5px 5px 0 var(--studio-yellow);
}

.studio-note-card--danger {
  border-color: var(--studio-red);
  box-shadow: 5px 5px 0 #f7d9d5;
}

.studio-note-card--danger .studio-kicker {
  color: var(--studio-red);
}

.studio-related {
  display: grid;
  gap: 8px;
}

.studio-related > header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.studio-related > header span {
  color: var(--studio-ghost);
  font-size: 10px;
}

.studio-related > div {
  display: grid;
  gap: 6px;
}

.studio-related-button {
  width: 100%;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: var(--studio-hairline);
  border-radius: 11px;
  background: var(--studio-canvas);
  cursor: pointer;
  text-align: left;
}

.studio-related-button:hover {
  border-color: var(--studio-ink);
  background: var(--studio-paper);
}

.studio-related-button span:first-child {
  font-size: 9px;
  font-weight: 950;
}

.studio-related-button strong {
  font-size: 10px;
  line-height: 1.15;
}

.studio-related-button span:last-child {
  color: var(--studio-red);
  font-size: 14px;
}

.studio-loading {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 14px;
  background: var(--studio-canvas);
  transition:
    opacity 220ms ease,
    visibility 220ms ease;
}

.studio-app:not(.is-loading) .studio-loading {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.studio-loading__mark {
  width: 72px;
  height: 72px;
  display: grid;
  place-items: center;
  border: 4px solid var(--studio-ink);
  background: var(--studio-yellow);
  box-shadow: 9px 9px 0 var(--studio-yellow-edge);
  font-size: 34px;
  font-weight: 1000;
  transform: rotate(-3deg);
}

.studio-loading p {
  margin: 0;
  font-size: 13px;
  font-weight: 900;
}

.studio-toast {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 300;
  max-width: 320px;
  padding: 11px 14px;
  border: 2px solid var(--studio-ink);
  background: var(--studio-yellow);
  box-shadow: 5px 5px 0 var(--studio-ink);
  font-size: 11px;
  font-weight: 900;
  opacity: 0;
  pointer-events: none;
  transform: translateY(140%);
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.studio-toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.studio-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(20, 20, 20, 0.46);
}

.studio-lesson-dialog {
  width: min(760px, calc(100vw - 30px));
  max-height: min(800px, calc(100vh - 30px));
  padding: 0;
  overflow: visible;
  border: 3px solid var(--studio-ink);
  border-radius: 20px;
  background: var(--studio-canvas);
  color: var(--studio-ink);
  box-shadow: 10px 10px 0 var(--studio-yellow-edge);
}

.studio-lesson-dialog::backdrop {
  background: rgba(20, 20, 20, 0.62);
}

.studio-lesson-dialog__shell {
  max-height: inherit;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  overflow: hidden;
}

.studio-lesson-dialog__head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  border-bottom: 2px solid var(--studio-ink);
  background: var(--studio-paper);
}

.studio-dialog-number {
  margin: 5px 0 0;
  color: var(--studio-red);
  font-size: 11px;
  font-weight: 950;
}

.studio-dialog-close {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 2px solid var(--studio-ink);
  border-radius: 50%;
  background: var(--studio-canvas);
  cursor: pointer;
  font-size: 25px;
  line-height: 1;
}

.studio-lesson-dialog__body {
  overflow-y: auto;
  padding: 26px;
}

.studio-lesson-dialog__body > h2 {
  max-width: 620px;
  margin: 0;
  font-size: clamp(34px, 5vw, 62px);
  font-weight: 1000;
  letter-spacing: -0.06em;
  line-height: 0.94;
}

.studio-dialog-question {
  max-width: 620px;
  margin: 16px 0 22px;
  color: var(--studio-footnote);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.4;
}

.studio-dialog-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.studio-dialog-grid section {
  padding: 15px;
  border: 2px solid var(--studio-ink);
  background: var(--studio-canvas);
  box-shadow: 5px 5px 0 var(--studio-yellow);
}

.studio-dialog-grid section.is-danger {
  border-color: var(--studio-red);
  box-shadow: 5px 5px 0 #f7d9d5;
}

.studio-dialog-grid section p:last-child {
  margin: 9px 0 0;
  font-size: 12px;
  line-height: 1.45;
}

.studio-dialog-anchor {
  margin: 24px 0 0;
  padding: 18px 20px;
  border: 0;
  background: var(--studio-ink);
  color: var(--studio-canvas);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.25;
  transform: rotate(-0.5deg);
}

.studio-dialog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.studio-dialog-tags span {
  padding: 5px 9px;
  border: var(--studio-hairline);
  border-radius: 999px;
  color: var(--studio-footnote);
  font-size: 9px;
  font-weight: 850;
}

.studio-lesson-dialog__footer {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  padding: 14px 20px 18px;
  border-top: var(--studio-hairline);
}

.studio-action-button {
  min-height: 42px;
  padding: 8px 14px;
  border: 2px solid var(--studio-ink);
  border-radius: 10px;
  background: var(--studio-yellow);
  cursor: pointer;
  font-size: 11px;
  font-weight: 950;
  box-shadow: 4px 4px 0 var(--studio-yellow-edge);
}

.studio-action-button--secondary {
  background: var(--studio-canvas);
  box-shadow: 4px 4px 0 var(--studio-chip);
}

.studio-noscript {
  position: fixed;
  inset: auto 20px 20px;
  z-index: 400;
  padding: 12px;
  border: 2px solid var(--studio-red);
  background: var(--studio-canvas);
}

/* Readability floor: supporting copy must remain legible without zooming. */
.studio-panel-meta,
.studio-module__count,
.studio-list-divider__count,
.studio-filter {
  font-size: 12px;
}

.studio-module__description,
.studio-lesson-row__number,
.studio-lesson-row__meta,
.studio-view-button,
.studio-map__paper-note,
.arch-edge-label,
.studio-map__legend,
.studio-map__legend button {
  font-size: 11px;
}

.studio-lesson-row__title,
.studio-map-footer,
.studio-case-steps li,
.studio-anchor,
.studio-comparison__side p,
.studio-comparison__takeaway,
.studio-node-intro p,
.studio-node-facts dt,
.studio-node-facts dd,
.studio-note-card p:last-child,
.studio-related-button strong {
  font-size: 13px;
}

.studio-map-head__eyebrow {
  font-size: 12px;
}

.studio-map-head__description,
.studio-node-description {
  font-size: 15px;
  line-height: 1.45;
}

.arch-node__eyebrow {
  font-size: 10px;
}

.arch-node__label {
  font-size: 14px;
}

.arch-node.is-core .arch-node__label {
  font-size: 18px;
}

.studio-case-steps li::before,
.studio-related-button span:first-child,
.studio-dialog-tags span {
  font-size: 11px;
}

.studio-comparison__side strong,
.studio-action-button {
  font-size: 13px;
}

@media (min-width: 1540px) {
  .studio-layout {
    grid-template-columns: 300px minmax(700px, 1fr) 350px;
    gap: 18px;
    padding: 18px;
  }

  .studio-map {
    min-height: 660px;
  }

  .studio-sidebar {
    top: calc(var(--studio-topbar-height) + 18px);
    max-height: calc(100vh - var(--studio-topbar-height) - 36px);
  }
}

@media (max-width: 1220px) {
  .studio-layout {
    grid-template-columns: 270px minmax(0, 1fr);
  }

  .studio-sidebar--details {
    position: fixed;
    z-index: 80;
    top: 0;
    right: 0;
    width: min(390px, calc(100vw - 32px));
    max-height: 100vh;
    height: 100vh;
    border-radius: 22px 0 0 22px;
    transform: translateX(105%);
    transition: transform 220ms ease;
  }

  .studio-sidebar--details.is-open {
    transform: translateX(0);
  }

  .studio-panel-close {
    display: grid;
    place-items: center;
  }

  .studio-panel-head--details {
    padding-right: 42px;
  }

  .studio-panel-head--details .studio-panel-close {
    position: absolute;
    right: 0;
    top: 0;
  }

  .studio-favorite-node {
    right: 42px;
  }

  .studio-mobile-toolbar {
    position: sticky;
    top: var(--studio-topbar-height);
    z-index: 35;
    min-height: 44px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 5px 14px;
    border-bottom: var(--studio-hairline);
    background: var(--studio-canvas);
  }

  .studio-mobile-button {
    min-height: 32px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 8px;
    border: var(--studio-hairline);
    border-radius: 8px;
    background: var(--studio-paper);
    cursor: pointer;
    font-size: 12px;
    font-weight: 850;
  }

  .studio-mobile-selection {
    overflow: hidden;
    margin: 0;
    font-size: 13px;
    font-weight: 900;
    text-align: center;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (max-width: 900px) {
  :root {
    --studio-topbar-height: 74px;
  }

  .studio-topbar {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding: 8px 12px;
  }

  .studio-brand__mark {
    flex-basis: 48px;
    width: 48px;
    height: 48px;
  }

  .studio-brand__title {
    font-size: 18px;
  }

  .studio-brand__tagline {
    max-width: 220px;
    overflow: hidden;
    font-size: 11px;
    text-overflow: ellipsis;
  }

  .studio-nav {
    display: none;
  }

  .studio-brand-group {
    gap: 9px;
  }

  .studio-return-link {
    min-height: 34px;
    padding: 4px 8px;
    font-size: 11px;
  }

  .studio-return-link__long {
    display: none;
  }

  .studio-return-link__short {
    display: inline;
  }

  .studio-account__label {
    display: none;
  }

  .studio-layout {
    grid-template-columns: minmax(0, 1fr);
    padding: 10px;
  }

  .studio-sidebar--modules {
    position: fixed;
    z-index: 80;
    left: 0;
    top: 0;
    width: min(340px, calc(100vw - 32px));
    height: 100vh;
    max-height: 100vh;
    border-radius: 0 22px 22px 0;
    transform: translateX(-105%);
    transition: transform 220ms ease;
  }

  .studio-sidebar--modules.is-open {
    transform: translateX(0);
  }

  .studio-map-head {
    min-height: 0;
    display: grid;
    gap: 14px;
    padding: 18px 16px 10px;
  }

  .studio-lesson-focus {
    margin: 0 8px 14px;
    padding: 17px;
  }

  .studio-lesson-focus__header {
    display: grid;
  }

  .studio-lesson-focus__header > a {
    width: fit-content;
  }

  .studio-lesson-focus__description {
    font-size: 14px;
  }

  .studio-lesson-focus__steps {
    grid-template-columns: 1fr;
  }

  .studio-lesson-focus__steps button {
    min-height: 0;
  }

  .studio-lesson-focus footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .studio-view-switcher {
    width: 100%;
  }

  .studio-map {
    min-height: 620px;
    margin: 0 8px;
  }

  .studio-lab-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 580px) {
  .studio-brand__tagline {
    display: none;
  }

  .studio-account__ring {
    width: 44px;
    height: 44px;
  }

  .studio-mobile-toolbar {
    padding-inline: 8px;
  }

  .studio-mobile-button span:nth-child(2) {
    display: none;
  }

  .studio-map-head__title {
    font-size: 34px;
  }

  .studio-map-head__description {
    font-size: 14px;
  }

  .studio-view-button {
    min-width: 0;
    padding-inline: 4px;
  }

  .studio-view-button span:last-child {
    font-size: 11px;
  }

  .studio-map {
    min-height: 360px;
  }

  .studio-map__paper-note,
  .studio-map__legend > span,
  .studio-hand-note {
    display: none;
  }

  .studio-map__legend {
    justify-content: flex-end;
  }

  .studio-map-footer {
    justify-content: center;
  }

  .studio-lab-card {
    min-height: 0;
  }

  .studio-dialog-grid {
    grid-template-columns: 1fr;
  }

  .studio-lesson-dialog__body {
    padding: 20px;
  }

  .studio-lesson-dialog__footer {
    display: grid;
    grid-template-columns: 1fr;
  }

  .studio-action-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}